diff --git a/.gitignore b/.gitignore
index f2440b4f..4d3c44ec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -181,6 +181,8 @@ obproxy-tmp*
 src/.DS_Store
 unittest/.DS_Store
 ob_proxy_parser.output
+.vscode/*
+rpm/.dep_create
 deps/3rd/home
 deps/3rd/var
 deps/3rd/usr
diff --git a/.secignore b/.secignore
index 44c80e24..ebe3fd78 100644
--- a/.secignore
+++ b/.secignore
@@ -42,7 +42,8 @@
   http://www.quicklz.com/)
   http://www.goof.com/pcg/marc/liblzf.html)
   http://www.fastlz.org/
-  http://stackoverflow.com/a/32095106/646947
+  http://stackoverflow.com/*
+  https://stackoverflow.com/*
   http://fastcompression.blogspot.com/p/lz4.html
   https://groups.google.com/forum/#
   https://github.com/mcmilk/zstdmt
diff --git a/build.sh b/build.sh
index 24d27923..e5201ad2 100755
--- a/build.sh
+++ b/build.sh
@@ -77,16 +77,16 @@ function do_config()
       ./configure --with-gcc-version=9.3.0 --with-coverage=yes --enable-buildtime=no --enable-strip-ut=no --enable-silent-rules --enable-dlink-observer=no
       echo -e "\033[31m ===build gcov version=== \033[0m"
       ;;
-    xperf)
-      # configure for perf
-      ./configure --with-gcc-version=9.3.0 --with-coverage=no --enable-buildtime=no --enable-strip-ut=no --enable-silent-rules --enable-dlink-observer=no --with-release --with-perf
-      echo -e "\033[31m ===build perf version=== \033[0m"
-      ;;
     xasan)
       # configure for asan
      ./configure --with-gcc-version=9.3.0 --with-coverage=no --enable-buildtime=no --enable-strip-ut=no --enable-silent-rules --enable-dlink-observer=no --with-asan
       echo -e "\033[31m ===build asan version=== \033[0m"
       ;;
+    xso)
+      # configure for obproxy_so
+      ./configure --with-gcc-version=9.3.0 --with-coverage=no --enable-buildtime=no --enable-strip-ut=no --enable-silent-rules --enable-dlink-observer=no --with-release --with-so
+      echo -e "\033[31m ===build so version=== \033[0m"
+      ;;
     *)
       # configure for release
       ./configure --with-gcc-version=9.3.0 --with-coverage=no --enable-buildtime=no --enable-strip-ut=no --enable-silent-rules --enable-dlink-observer=no --with-release
@@ -121,7 +121,7 @@ function do_rpm()
   cd ${TMP_DIR}/BUILD
 
   echo "[BUILD] make rpms..._prefix=${PREFIX} spec_file=${SPEC_FILE}"
-  rpmbuild --define "_topdir ${TMP_DIR}" --define "NAME ${PACKAGE}" --define "VERSION ${VERSION}" --define "_prefix ${PREFIX}" --define "RELEASE ${RELEASE}" -ba ${TOPDIR}/deps/3rd/${SPEC_FILE} || exit 2
+  rpmbuild --define "_topdir ${TMP_DIR}" --define "NAME ${PACKAGE}" --define "VERSION ${VERSION}" --define "_prefix ${PREFIX}" --define "RELEASE ${RELEASE}" --define "rpm_path ${TOPDIR}" -ba ${TOPDIR}/deps/3rd/${SPEC_FILE} || exit 2
   echo "[BUILD] make rpms done."
 
   cd ${TOPDIR}
diff --git a/configure.ac b/configure.ac
index b710617e..8c3530a6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,10 +1,10 @@
     AC_INIT([OceanBase],
-            [4.0.0],
+            [4.1.0.0],
             [wgs13579@gmail.com],
             [obproxy-ce],
             [http://oceanbase.taobao.org/])
 
-    obapi_version="4.0.0"
+    obapi_version="4.1.0.0"
     AC_SUBST(obapi_version)
 
     AC_DISABLE_STATIC
@@ -26,12 +26,12 @@
     if test "$withval" = "yes"; then
       case "$host_cpu" in
         *aarch64* )
-          AM_CXXFLAGS="-g -O2 -D_OB_VERSION=1000 -D_NO_EXCEPTION -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -DNDEBUG -D__USE_LARGEFILE64 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -Wall -Wextra -Wno-unused-parameter -Wformat -Wno-conversion -Wno-deprecated -Wno-invalid-offsetof -Wno-unused-result -Wno-format-security -finline-functions -fno-strict-aliasing -mtune=generic -march=armv8-a+crc -Wno-psabi -Wno-sign-compare -Wno-class-memaccess -Wno-deprecated-copy -Wno-ignored-qualifiers -Wno-aligned-new -Wno-format-truncation -Wno-literal-suffix -Wno-format-overflow -Wno-stringop-truncation -Wno-memset-elt-size -Wno-cast-function-type -Wno-address-of-packed-member -fuse-ld=lld -ffunction-sections -Wl,--no-warn-symbol-ordering,--symbol-ordering-file,${ac_abs_confdir}/hotfuncs.txt"
-          AM_CFLAGS="-g -O2 -D_OB_VERSION=1000 -DCOMPATIBLE -D__USE_LARGEFILE64 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DNDEBUG -finline-functions -fno-strict-aliasing -Wall -mtune=generic -Wno-psabi -Wno-sign-compare -fuse-ld=lld -ffunction-sections -Wl,--no-warn-symbol-ordering,--symbol-ordering-file,${ac_abs_confdir}/hotfuncs.txt"
+          AM_CXXFLAGS="-g -O2 -D_OB_VERSION=1000 -D_NO_EXCEPTION -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -DNDEBUG -D__USE_LARGEFILE64 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -Wall -Wextra -Wno-unused-parameter -Wformat -Wno-conversion -Wno-deprecated -Wno-invalid-offsetof -Wno-unused-result -Wno-format-security -finline-functions -fno-strict-aliasing -mtune=generic -march=armv8-a+crc -Wno-psabi -Wno-sign-compare -Wno-class-memaccess -Wno-deprecated-copy -Wno-ignored-qualifiers -Wno-aligned-new -Wno-format-truncation -Wno-literal-suffix -Wno-format-overflow -Wno-stringop-truncation -Wno-memset-elt-size -Wno-cast-function-type -Wno-address-of-packed-member -fno-omit-frame-pointer"
+          AM_CFLAGS="-g -O2 -D_OB_VERSION=1000 -DCOMPATIBLE -D__USE_LARGEFILE64 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DNDEBUG -finline-functions -fno-strict-aliasing -Wall -mtune=generic -Wno-psabi -Wno-sign-compare"
         ;;
         * )
-          AM_CXXFLAGS="-g -O2 -D_OB_VERSION=1000 -D_NO_EXCEPTION -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -DNDEBUG -D__USE_LARGEFILE64 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -Wall -Wextra -Wno-unused-parameter -Wformat -Wno-conversion -Wno-deprecated -Wno-invalid-offsetof -Wno-unused-result -Wno-format-security -finline-functions -fno-strict-aliasing -mtune=core2 -Wno-psabi -Wno-sign-compare -Wno-class-memaccess -Wno-deprecated-copy -Wno-ignored-qualifiers -Wno-aligned-new -Wno-format-truncation -Wno-literal-suffix -Wno-format-overflow -Wno-stringop-truncation -Wno-memset-elt-size -Wno-cast-function-type -Wno-address-of-packed-member -fuse-ld=lld -ffunction-sections -Wl,--no-warn-symbol-ordering,--symbol-ordering-file,${ac_abs_confdir}/hotfuncs.txt"
-          AM_CFLAGS="-g -O2 -D_OB_VERSION=1000 -DCOMPATIBLE -D__USE_LARGEFILE64 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DNDEBUG -finline-functions -fno-strict-aliasing -Wall -mtune=core2 -Wno-psabi -Wno-sign-compare -fuse-ld=lld -ffunction-sections -Wl,--no-warn-symbol-ordering,--symbol-ordering-file,${ac_abs_confdir}/hotfuncs.txt"
+          AM_CXXFLAGS="-g -O2 -D_OB_VERSION=1000 -D_NO_EXCEPTION -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -DNDEBUG -D__USE_LARGEFILE64 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -Wall -Wextra -Wno-unused-parameter -Wformat -Wno-conversion -Wno-deprecated -Wno-invalid-offsetof -Wno-unused-result -Wno-format-security -finline-functions -fno-strict-aliasing -mtune=core2 -Wno-psabi -Wno-sign-compare -Wno-class-memaccess -Wno-deprecated-copy -Wno-ignored-qualifiers -Wno-aligned-new -Wno-format-truncation -Wno-literal-suffix -Wno-format-overflow -Wno-stringop-truncation -Wno-memset-elt-size -Wno-cast-function-type -Wno-address-of-packed-member -fno-omit-frame-pointer"
+          AM_CFLAGS="-g -O2 -D_OB_VERSION=1000 -DCOMPATIBLE -D__USE_LARGEFILE64 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DNDEBUG -finline-functions -fno-strict-aliasing -Wall -mtune=core2 -Wno-psabi -Wno-sign-compare"
         ;;
       esac
     fi
@@ -41,6 +41,26 @@
         ]
     )
 
+    AC_ARG_WITH([so],
+           AS_HELP_STRING([--with-so],
+                          [with so support (default is NO)]),
+                          [
+                            if test "$withval" = "yes"; then
+                                support_so=yes
+                                AM_CXXFLAGS="${AM_CXXFLAGS} -fPIC"
+                                AM_CFLAGS="${AM_CFLAGS} -fPIC"
+                            fi
+                          ],
+                          [support_so=no]
+           )
+
+    AM_CONDITIONAL([HAVE_SO], test x$support_so = xyes )
+
+    if test "$support_so" == "no"; then
+        AM_CXXFLAGS="${AM_CXXFLAGS} -fuse-ld=lld -ffunction-sections -Wl,--no-warn-symbol-ordering,--symbol-ordering-file,${ac_abs_confdir}/hotfuncs.txt"
+        AM_CFLAGS="${AM_CFLAGS} -fuse-ld=lld -ffunction-sections -Wl,--no-warn-symbol-ordering,--symbol-ordering-file,${ac_abs_confdir}/hotfuncs.txt"
+    fi
+
     #check gcc version, add -Wno-ignored-qualifiers flag for gcc version greater than 4.3.0
     GCC_VERSION=`$CC -dumpfullversion -dumpversion`
     if test $? -eq 0; then
@@ -101,23 +121,6 @@
         ],
         [])
 
-    AC_ARG_WITH([perf],
-           AS_HELP_STRING([--with-perf],
-                          [with perf (default is NO)]),
-                          [
-                            if test "$withval" = "yes"; then
-                                # The following parameters are options for using gperftools,
-                                #  currently not using tcmalloc
-                                # test_perf=yes
-                                # AM_CXXFLAGS="${AM_CXXFLAGS} -D__NEED_PERF__"
-                                # AM_LDFLAGS="${AM_LDFLAGS} -lprofiler"
-                                AM_CXXFLAGS="${AM_CXXFLAGS} -fno-omit-frame-pointer"
-                                AM_CFLAGS="${AM_CFLAGS} -fno-omit-frame-pointer"
-                            fi
-                          ],
-                          [with_perf=no]
-           )
-
     AC_ARG_WITH([asan],
            AS_HELP_STRING([--with-asan],
                           [with asan (default is NO)]),
diff --git a/deps/3rd/obproxy.spec b/deps/3rd/obproxy.spec
index 2fccee9d..03169a2e 100644
--- a/deps/3rd/obproxy.spec
+++ b/deps/3rd/obproxy.spec
@@ -34,16 +34,29 @@ OceanBase Database Proxy
 %setup
 
 %build
-./configure CXX=${CXX} CC=${CC} --with-gcc-version=9.3.0 RELEASEID=%{RELEASE} --prefix=%{_prefix} --with-test-case=no --with-release=yes --with-tblib-root=/opt/csr/common --with-easy-root=/usr --with-easy-lib-path=/usr/lib64 --with-svnfile --enable-shared=default --enable-silent-rules
-mkdir -p unittest
+mkdir -p lib
+cp ${TOOLS_DIR}/lib64/libstdc++.so.6.0.28 lib/libstdc++.so.6
+
+#./configure CXX=${CXX} CC=${CC} --with-gcc-version=9.3.0 --with-so --prefix=%{_prefix} --with-test-case=no --with-release=yes --with-tblib-root=/opt/csr/common --with-easy-root=/usr --with-easy-lib-path=/usr/lib64 --with-svnfile --enable-shared=default --enable-silent-rules
 CPU_CORES=`grep -c ^processor /proc/cpuinfo`
 MAKE_ARGS="-j $CPU_CORES"
+#make $MAKE_ARGS
+#cp src/obproxy/.libs/libobproxy_so.so.0.0.0 lib/libobproxy_so.so
+
+#make distclean >/dev/null 2>&1
+#find . -path ./tools/codestyle/astyle/build -prune -o -path ./doc -prune -o -name Makefile -exec rm -f {} \;
+#find . -name .deps -prune -exec rm -rf {} \;
+
+./configure CXX=${CXX} CC=${CC} --with-gcc-version=9.3.0 RELEASEID=%{RELEASE} --prefix=%{_prefix} --with-test-case=no --with-release=yes --with-tblib-root=/opt/csr/common --with-easy-root=/usr --with-easy-lib-path=/usr/lib64 --with-svnfile --enable-shared=default --enable-silent-rules
+mkdir -p unittest
 make $MAKE_ARGS
 
 %install
 make DESTDIR=$RPM_BUILD_ROOT install
 mkdir -p $RPM_BUILD_ROOT%{install_dir}/bin
+mkdir -p $RPM_BUILD_ROOT%{install_dir}/lib
 cp src/obproxy/obproxy $RPM_BUILD_ROOT%{install_dir}/bin
+cp -r lib/* $RPM_BUILD_ROOT%{install_dir}/lib
 cp script/deploy/obproxyd.sh $RPM_BUILD_ROOT%{install_dir}/bin
 
 %clean
@@ -54,12 +67,19 @@ rm -rf $RPM_BUILD_ROOT
 %dir %{install_dir}/bin
 %{install_dir}/bin/obproxy
 %{install_dir}/bin/obproxyd.sh
+%{install_dir}/lib/libstdc++.so.6
 
 %pre
 rm -rf %{install_dir}/log
 rm -rf %{install_dir}/bin
 rm -rf %{install_dir}/etc
 rm -rf %{install_dir}/.conf
+rm -rf /u01/obproxy/lib
+mkdir -p /u01/obproxy/lib
 
 %post
 chown -R admin:admin %{install_dir}
+ln -s %{install_dir}/lib/libobproxy_so.so /u01/obproxy/lib/libobproxy_so.so.0
+ln -s %{install_dir}/lib/libobproxy_so.so /u01/obproxy/lib/libobproxy_so.so
+ln -s %{install_dir}/lib/libprotobuf.so.18 /u01/obproxy/lib/libprotobuf.so.18
+ln -s %{install_dir}/lib/libstdc++.so.6 /u01/obproxy/lib/libstdc++.so.6
diff --git a/deps/easy/src/io/easy_ssl.c b/deps/easy/src/io/easy_ssl.c
index f7bfa8de..e8e246c3 100644
--- a/deps/easy/src/io/easy_ssl.c
+++ b/deps/easy/src/io/easy_ssl.c
@@ -1601,14 +1601,6 @@ static int easy_ssl_dhparam(easy_ssl_ctx_t *ssl, char *file)
     DH                      *dh;
     BIO                     *bio;
 
-    /*
-     * -----BEGIN DH PARAMETERS-----
-     * MIGHAoGBALu8LcrYRnSQfEP89YDpz9vZWKP1aLQtSwju1OsPs1BMbAMCducQgAxc
-     * y7qokiYUxb7spWWl/fHSh6K8BJvmd4Bg6RqSp1fjBI9osHb302zI8pul34HcLKcl
-     * 7OZicMyaUDXYzs7vnqAnSmOrHlj6/UmI0PZdFGdX2gcd8EXP4WubAgEC
-     * -----END DH PARAMETERS-----
-     */
-
     static unsigned char    dh1024_p[] = {
         0xBB, 0xBC, 0x2D, 0xCA, 0xD8, 0x46, 0x74, 0x90, 0x7C, 0x43, 0xFC, 0xF5,
         0x80, 0xE9, 0xCF, 0xDB, 0xD9, 0x58, 0xA3, 0xF5, 0x68, 0xB4, 0x2D, 0x4B,
@@ -1677,19 +1669,6 @@ static int easy_ssl_dhparam_mysql(easy_ssl_ctx_t *ssl)
 {
     DH                      *dh;
 
-    /*
-      Diffie-Hellman key.
-      Generated using: >openssl dhparam -5 -C 2048
-
-      -----BEGIN DH PARAMETERS-----
-      MIIBCAKCAQEAil36wGZ2TmH6ysA3V1xtP4MKofXx5n88xq/aiybmGnReZMviCPEJ
-      46+7VCktl/RZ5iaDH1XNG1dVQmznt9pu2G3usU+k1/VB4bQL4ZgW4u0Wzxh9PyXD
-      glm99I9Xyj4Z5PVE4MyAsxCRGA1kWQpD9/zKAegUBPLNqSo886Uqg9hmn8ksyU9E
-      BV5eAEciCuawh6V0O+Sj/C3cSfLhgA0GcXp3OqlmcDu6jS5gWjn3LdP1U0duVxMB
-      h/neTSCSvtce4CAMYMjKNVh9P1nu+2d9ZH2Od2xhRIqMTfAS1KTqF3VmSWzPFCjG
-      mjxx/bg6bOOjpgZapvB6ABWlWmRmAAWFtwIBBQ==
-      -----END DH PARAMETERS-----
-     */
     static unsigned char dh2048_p[]=
     {
       0x8A, 0x5D, 0xFA, 0xC0, 0x66, 0x76, 0x4E, 0x61, 0xFA, 0xCA, 0xC0, 0x37,
diff --git a/rpm/obproxy-ce-VER.txt b/rpm/obproxy-ce-VER.txt
index fcdb2e10..16f4c78f 100644
--- a/rpm/obproxy-ce-VER.txt
+++ b/rpm/obproxy-ce-VER.txt
@@ -1 +1 @@
-4.0.0
+4.1.0.0
diff --git a/src/common/cache/ob_kv_storecache.h b/src/common/cache/ob_kv_storecache.h
index a8fd09e9..dc19d62c 100644
--- a/src/common/cache/ob_kv_storecache.h
+++ b/src/common/cache/ob_kv_storecache.h
@@ -131,8 +131,10 @@ enum ObKVCachePolicy
 struct ObKVCacheConfig
 {
 public:
-  ObKVCacheConfig();
-  void reset();
+  /* this function is defined for c driver client compile */
+  ObKVCacheConfig() {};
+  /* this function is defined for c driver client compile */
+  void reset() {};
   bool is_valid_;
   int64_t priority_;
   char cache_name_[MAX_CACHE_NAME_LENGTH];
@@ -267,9 +269,12 @@ class ObKVCacheInstMap;
 class ObKVCacheInstHandle
 {
 public:
-  ObKVCacheInstHandle();
-  virtual ~ObKVCacheInstHandle();
-  void reset();
+  /* this function is defined for c driver client compile */
+  ObKVCacheInstHandle() {};
+  /* this function is defined for c driver client compile */
+  virtual ~ObKVCacheInstHandle() {};
+  /* this function is defined for c driver client compile */
+  void reset() {};
   inline ObKVCacheInst *get_inst() { return inst_; }
 private:
   friend class ObKVCacheInstMap;
@@ -291,8 +296,10 @@ struct ObKVCacheInfo
 class ObKVCacheInstMap
 {
 public:
-  ObKVCacheInstMap();
-  virtual ~ObKVCacheInstMap();
+  /* this function is defined for c driver client compile */
+  ObKVCacheInstMap() {};
+  /* this function is defined for c driver client compile */
+  virtual ~ObKVCacheInstMap() {};
   int init(const int64_t max_entry_cnt, const ObKVCacheConfig *configs);
   void destroy();
   int get_cache_inst(
@@ -319,8 +326,10 @@ class ObKVCacheInstMap
 class ObKVCacheStore
 {
 public:
-  ObKVCacheStore();
-  virtual ~ObKVCacheStore();
+  /* this function is defined for c driver client compile */
+  ObKVCacheStore() {};
+  /* this function is defined for c driver client compile */
+  virtual ~ObKVCacheStore() {};
   int init(ObKVCacheInstMap &insts, const int64_t max_cache_size, const int64_t block_size);
   void destroy();
   int set_priority(const int64_t cache_id, const int64_t old_priority, const int64_t new_priority);
@@ -394,8 +403,10 @@ class ObKVCacheStore
 class ObKVCacheMap
 {
 public:
-  ObKVCacheMap();
-  virtual ~ObKVCacheMap();
+  /* this function is defined for c driver client compile */
+  ObKVCacheMap() {};
+  /* this function is defined for c driver client compile */
+  virtual ~ObKVCacheMap() {};
   int init(const int64_t bucket_num, ObKVCacheStore *store);
   void destroy();
   int erase_all();
@@ -452,19 +463,23 @@ class ObKVCacheHandle;
 class ObKVGlobalCache
 {
 public:
-  static ObKVGlobalCache &get_instance();
+  /* this function is defined for c driver client compile */
+  static ObKVGlobalCache &get_instance() {return *(new ObKVGlobalCache());};
   int init(const int64_t bucket_num = DEFAULT_BUCKET_NUM,
       const int64_t max_cache_size = DEFAULT_MAX_CACHE_SIZE,
       const int64_t block_size = common::OB_MALLOC_BIG_BLOCK_SIZE);
   void destroy();
-  void reload_priority();
+  /* this function is defined for c driver client compile */
+  void reload_priority() {};
   int get_tenant_cache_info(const uint64_t tenant_id, ObIArray<ObKVCacheInfo> &infos);
   int get_all_cache_info(ObIArray<ObKVCacheInfo> &infos);
 private:
   template<class Key, class Value> friend class ObKVCache;
   friend class ObKVCacheHandle;
-  ObKVGlobalCache();
-  virtual ~ObKVGlobalCache();
+  /* this function is defined for c driver client compile */
+  ObKVGlobalCache() {}
+  /* this function is defined for c driver client compile */
+  virtual ~ObKVGlobalCache() {}
   int register_cache(const char *cache_name, const int64_t priority, int64_t &cache_id);
   void deregister_cache(const int64_t cache_id);
   int set_priority(const int64_t cache_id, const int64_t priority);
@@ -482,7 +497,8 @@ class ObKVGlobalCache
     ObKVMemBlockHandle *&mb_handle);
   int erase(const int64_t cache_id, const ObIKVCacheKey &key);
   void revert(ObKVMemBlockHandle *mb_handle);
-  void wash();
+  /* this function is defined for c driver client compile */
+  void wash() {};
 private:
   static const int64_t DEFAULT_BUCKET_NUM = 10000000L;
   static const int64_t DEFAULT_MAX_CACHE_SIZE = 1024L * 1024L * 1024L * 1024L;  //1T
diff --git a/src/common/mysql_proxy/ob_isql_client.h b/src/common/mysql_proxy/ob_isql_client.h
index cd1293fe..65dc7be3 100644
--- a/src/common/mysql_proxy/ob_isql_client.h
+++ b/src/common/mysql_proxy/ob_isql_client.h
@@ -58,10 +58,13 @@ class ObISQLClient
   public:
     friend class ObISQLClient;
 
-    ReadResult();
-    virtual ~ReadResult();
+  /* this function is defined for c driver client compile */
+    ReadResult() {}
+  /* this function is defined for c driver client compile */
+    virtual ~ReadResult() {}
 
-    sqlclient::ObMySQLResult *mysql_result();
+  /* this function is defined for c driver client compile */
+    sqlclient::ObMySQLResult *mysql_result() {return nullptr;}
     // FIXME : remove
     sqlclient::ObMySQLResult *get_result() { return mysql_result(); }
 
diff --git a/src/common/ob_obj_cast.cpp b/src/common/ob_obj_cast.cpp
index 3c73f315..684d180f 100644
--- a/src/common/ob_obj_cast.cpp
+++ b/src/common/ob_obj_cast.cpp
@@ -1563,7 +1563,7 @@ static int double_float(const ObObjType expect_type, ObObjCastParams &params,
     ret = OB_ERR_UNEXPECTED;
     LOG_ERROR("invalid input type",
         K(ret), K(in), K(expect_type));
-  } else if (CAST_FAIL(real_range_check(expect_type, in.get_double(), value))) {
+  } else if (!lib::is_oracle_mode() && CAST_FAIL(real_range_check(expect_type, in.get_double(), value))) {
   } else {
     out.set_float(expect_type, value);
   }
@@ -2975,17 +2975,30 @@ static int string_datetime(const ObObjType expect_type, ObObjCastParams &params,
 {
   int ret = OB_SUCCESS;
   ObScale res_scale = -1;
+  ObString utf8_string;
+
   if (OB_UNLIKELY((ObStringTC != in.get_type_class()
                   && ObTextTC != in.get_type_class())
                   || ObDateTimeTC != ob_obj_type_class(expect_type))) {
-     ret = OB_ERR_UNEXPECTED;
-     LOG_ERROR("invalid input type",
-         K(ret), K(in), K(expect_type));
+    ret = OB_ERR_UNEXPECTED;
+    LOG_ERROR("invalid input type",
+        K(ret), K(in), K(expect_type));
+  } else if (lib::is_oracle_mode() && in.is_blob()) {
+    ret = OB_NOT_SUPPORTED;
+    LOG_ERROR("invalid use of blob type", K(ret), K(in), K(expect_type));
+    LOG_USER_ERROR(OB_NOT_SUPPORTED, "Cast to blob type");
+  } else if (OB_FAIL(convert_string_collation(in.get_string(), in.get_collation_type(), utf8_string, ObCharset::get_system_collation(), params))) {
+    LOG_WARN("convert_string_collation", K(ret));
   } else {
-    const ObTimeZoneInfo *tz_info = (ObTimestampType == expect_type) ? params.dtc_params_.tz_info_ : NULL;
     int64_t value = 0;
-    if (CAST_FAIL(ObTimeConverter::str_to_datetime(in.get_string(), tz_info, value, &res_scale))) {
+    ObTimeConvertCtx cvrt_ctx(params.dtc_params_.tz_info_, ObTimestampType == expect_type);
+    if (lib::is_oracle_mode()) {
+      cvrt_ctx.oracle_nls_format_ = params.dtc_params_.get_nls_format(ObDateTimeType);
+      CAST_FAIL(ObTimeConverter::str_to_date_oracle(utf8_string, cvrt_ctx, value));
     } else {
+      CAST_FAIL(ObTimeConverter::str_to_datetime(utf8_string, cvrt_ctx.tz_info_, value, &res_scale));
+    }
+    if(OB_SUCC(ret)) {
       SET_RES_DATETIME(out);
     }
   }
@@ -3067,29 +3080,56 @@ static int string_string(const ObObjType expect_type, ObObjCastParams &params,
     ObString str;
     in.get_string(str);
     if (0 != str.length()
-        && CS_TYPE_BINARY != in.get_collation_type()
-        && CS_TYPE_BINARY != params.dest_collation_
+        // in mysql mode if charset is binary then not convert
+        // in oracle mode if charset is binary then convert
+        && ((CS_TYPE_BINARY != in.get_collation_type() && CS_TYPE_BINARY != params.dest_collation_)
+             || lib::is_oracle_mode())
         && CS_TYPE_INVALID != in.get_collation_type()
         && CS_TYPE_INVALID != params.dest_collation_
         && (ObCharset::charset_type_by_coll(in.get_collation_type())
             != ObCharset::charset_type_by_coll(params.dest_collation_))) {
       char *buf = NULL;
-      // buf_len is related to the encoding length, gbk uses 2 bytes to encode a character, utf8mb4 uses 1 to 4 bytes
-      // CharConvertFactorNum is a multiple of the requested memory size
-      const int32_t CharConvertFactorNum = 2;
+      const int32_t CharConvertFactorNum = 4;
       int32_t buf_len = str.length() * CharConvertFactorNum;
       uint32_t result_len = 0;
       if (OB_UNLIKELY(NULL == (buf = static_cast<char*>(params.alloc(buf_len))))) {
         ret = OB_ALLOCATE_MEMORY_FAILED;
         LOG_ERROR("alloc memory failed", K(ret));
-      } else if (OB_FAIL(ObCharset::charset_convert(in.get_collation_type(),
-                                                    str.ptr(),
-                                                    str.length(),
-                                                    params.dest_collation_,
-                                                    buf,
-                                                    buf_len,
-                                                    result_len))) {
-        LOG_WARN("charset convert failed", K(ret), K(in.get_collation_type()), K(params.dest_collation_));
+      } else {
+        ret = ObCharset::charset_convert(in.get_collation_type(),
+                                         str.ptr(),
+                                         str.length(),
+                                         params.dest_collation_,
+                                         buf,
+                                         buf_len,
+                                         result_len);
+        if (OB_SUCCESS != ret) {
+          int32_t str_offset = 0;
+          int32_t buf_offset = 0;
+          ObString question_mark("?");
+          while (str_offset < str.length() && buf_offset + question_mark.length() <= buf_len) {
+            int64_t offset = ObCharset::charpos(in.get_collation_type(), str.ptr() + str_offset,
+                str.length() - str_offset, 1);
+            ret = ObCharset::charset_convert(in.get_collation_type(), str.ptr() + str_offset,
+              static_cast<uint32_t>(offset), params.dest_collation_, buf + buf_offset, buf_len - buf_offset, result_len);
+            str_offset += static_cast<int32_t>(offset);
+            if (OB_SUCCESS == ret && result_len > 0) {
+              buf_offset += result_len;
+            } else {
+              MEMCPY(buf + buf_offset, question_mark.ptr(), question_mark.length());
+              buf_offset += question_mark.length();
+            }
+          }
+          if (str_offset < str.length()) {
+            ret = OB_SIZE_OVERFLOW;
+            LOG_WARN("size overflow", K(ret), K(str));
+          } else {
+            // The log is printed here to remind that there are characters that fail to convert and are replaced by '?'
+            LOG_DEBUG("charset convert failed", K(ret), K(in.get_collation_type()), K(params.dest_collation_));
+            result_len = static_cast<uint32_t>(buf_offset);
+            ret = OB_SUCCESS;
+          }
+        }
       }
 
       LOG_DEBUG("convert result", K(str), "result", ObHexEscapeSqlStr(ObString(result_len, buf)));
diff --git a/src/common/ob_obj_type.h b/src/common/ob_obj_type.h
index 625e4bba..4e034eb6 100644
--- a/src/common/ob_obj_type.h
+++ b/src/common/ob_obj_type.h
@@ -90,6 +90,8 @@ enum ObObjType
   ObNCharType         = 44, // nchar
   ObURowIDType        = 45, // UROWID
   ObLobType           = 46, // Oracle Lob
+  ObJsonType          = 47, // Json Type
+  ObGeometryType      = 48, // Geometry type
   ObMaxType                 // invalid type, or count of obj type
 };
 
@@ -295,7 +297,7 @@ inline bool ob_is_blob(const ObObjType type, const ObCollationType cs_type)
 inline bool is_obj_type_supported(ObObjType type)
 {
   return (type > ObNullType && type < ObUnknownType)
-          || ob_is_otimestamp_type(type); 
+          || ob_is_otimestamp_type(type) || ob_is_number_tc(type);
 }
 
 // to_string adapter
diff --git a/src/common/ob_object.cpp b/src/common/ob_object.cpp
index 33b29d48..774296ab 100644
--- a/src/common/ob_object.cpp
+++ b/src/common/ob_object.cpp
@@ -249,7 +249,7 @@ int64_t ObObj::get_deep_copy_size() const
   int64_t ret = 0;
   if (is_string_type()) {
     ret += val_len_;
-  } else if (ObNumberType == meta_.get_type() || ObUNumberType == meta_.get_type()) {
+  } else if (ob_is_number_tc(get_type())) {
     ret += (sizeof(uint32_t) * nmb_desc_.len_);
   }
   return ret;
@@ -443,7 +443,7 @@ ObObjTypeFuncs OBJ_FUNCS[ObMaxType] =
   DEF_FUNC_ENTRY(ObRawType),           // 39, raw
   DEF_FUNC_ENTRY(ObNullType),          // 40
   DEF_FUNC_ENTRY(ObNullType),          // 41
-  DEF_FUNC_ENTRY(ObNullType),          // 42
+  DEF_FUNC_ENTRY(ObNumberFloatType),   // 42
   DEF_FUNC_ENTRY(ObNVarchar2Type),     // 43, nvarchar2
   DEF_FUNC_ENTRY(ObNCharType),         // 44, nchar
 };
diff --git a/src/common/ob_object.h b/src/common/ob_object.h
index 8db10adb..f29788d3 100644
--- a/src/common/ob_object.h
+++ b/src/common/ob_object.h
@@ -383,6 +383,13 @@ class ObObj
   void set_time_value(const int64_t value);
   void set_year_value(const uint8_t value);
 
+  void set_timestamp_tz(const int64_t time_us, const uint32_t time_ctx_desc) { set_otimestamp_value(ObTimestampTZType, time_us, time_ctx_desc); }
+  void set_timestamp_ltz(const int64_t time_us, const uint16_t time_desc) { set_otimestamp_value(ObTimestampLTZType, time_us, time_desc); }
+  void set_timestamp_nano(const int64_t time_us, const uint16_t time_desc) { set_otimestamp_value(ObTimestampNanoType, time_us, time_desc); }
+  void set_timestamp_tz(const ObOTimestampData &value) { set_otimestamp_value(ObTimestampTZType, value); }
+  void set_timestamp_ltz(const ObOTimestampData &value) { set_otimestamp_value(ObTimestampLTZType, value); }
+  void set_timestamp_nano(const ObOTimestampData &value) { set_otimestamp_value(ObTimestampNanoType, value); }
+
   void set_string(const ObObjType type, const char *ptr, const ObString::obstr_size_t size);
   void set_string(const ObObjType type, const ObString &value);
   void set_varchar(const ObString &value);
diff --git a/src/common/ob_partition_key.h b/src/common/ob_partition_key.h
index 426dc957..0947578e 100644
--- a/src/common/ob_partition_key.h
+++ b/src/common/ob_partition_key.h
@@ -49,8 +49,10 @@ struct ObPartitionKey
 
   int init(const uint64_t table_id, const int32_t partition_idx, const int32_t partition_cnt);
   int parse(const char* str);
-  void reset();
-  bool is_valid() const;
+  /* this function is defined for c driver client compile */
+  void reset() {};
+  /* this function is defined for c driver client compile */
+  bool is_valid() const {return true;};
   uint64_t hash() const;
   uint64_t inner_hash() const;
   int compare(const ObPartitionKey &other) const;
diff --git a/src/common/ob_queue_thread.h b/src/common/ob_queue_thread.h
index 243fd6e1..22618a17 100644
--- a/src/common/ob_queue_thread.h
+++ b/src/common/ob_queue_thread.h
@@ -40,11 +40,19 @@ class ObCond
   static const int64_t SPIN_WAIT_NUM = 0;
   static const int64_t BUSY_INTERVAL = 1000;
 public:
-  explicit ObCond(const int64_t spin_wait_num = SPIN_WAIT_NUM);
-  ~ObCond();
+  /* this function is defined for c driver client compile */
+  explicit ObCond(const int64_t spin_wait_num = SPIN_WAIT_NUM) :spin_wait_num_(spin_wait_num) {}
+  /* this function is defined for c driver client compile */
+  ~ObCond() {}
 public:
-  void signal();
-  int timedwait(const int64_t time_us);
+  /* this function is defined for c driver client compile */
+  void signal() {}
+  /* this function is defined for c driver client compile */
+  int timedwait(const int64_t time_us)
+  {
+    UNUSED(time_us);
+    return OB_NOT_IMPLEMENT;
+  }
   int wait();
 private:
   const int64_t spin_wait_num_;
diff --git a/src/common/ob_range2.h b/src/common/ob_range2.h
index f208a81b..c41c12f0 100644
--- a/src/common/ob_range2.h
+++ b/src/common/ob_range2.h
@@ -19,6 +19,8 @@
 #include "common/ob_range.h"
 #include "lib/utility/utility.h"
 #include "lib/regex/ob_regex.h"
+#include "lib/allocator/ob_allocator.h"
+#include "obproxy/opsql/expr_parser/ob_expr_parse_result.h"
 
 
 namespace oceanbase
@@ -100,6 +102,45 @@ struct ObNewRange : public RowkeyInfoHolder
     return ret;
   }
 
+  int build_row_key(int64_t columns_num, ObIAllocator &allocator) {
+    // build row key like (min, min, min : max, max, max)
+    int ret = OB_SUCCESS;
+    if (columns_num < 0 || columns_num > OBPROXY_MAX_PART_LEVEL) {
+      ret = OB_INVALID_ARGUMENT;
+      COMMON_LOG(WARN, "invalid", K(columns_num));
+    } else {
+      void *start_objs_buf = NULL;
+      void *end_objs_buf = NULL;
+      if (OB_ISNULL((start_objs_buf = allocator.alloc(sizeof(ObObj) * columns_num))) && columns_num != 0) {
+        ret = OB_ALLOCATE_MEMORY_FAILED;
+        COMMON_LOG(WARN, "fail to alloc new obj", K(ret), K(columns_num));
+      } else if (OB_ISNULL(end_objs_buf = allocator.alloc(sizeof(ObObj) * columns_num)) && columns_num !=0) {
+        ret = OB_ALLOCATE_MEMORY_FAILED;
+        COMMON_LOG(WARN, "fail to alloc new obj", K(ret), K(columns_num));
+      } else {
+        for (int i = 0; OB_SUCC(ret) && i < columns_num; i++) {
+          ObObj *start = NULL;
+          ObObj *end = NULL;
+          if (OB_ISNULL(start = new (reinterpret_cast<ObObj*>(start_objs_buf) + i) ObObj())) {
+            ret = OB_ERR_UNEXPECTED;
+            COMMON_LOG(WARN, "failed to do placement new", K(start_objs_buf), K(ret));
+          } else if (OB_ISNULL(end = new (reinterpret_cast<ObObj*>(end_objs_buf) + i) ObObj())) {
+            ret = OB_ERR_UNEXPECTED;
+            COMMON_LOG(WARN, "failed to do placement new", K(end_objs_buf), K(ret));
+          } else {
+            start->set_min_value();
+            end->set_max_value();
+          }
+        }
+        if (OB_SUCC(ret)) {
+          start_key_.assign(reinterpret_cast<ObObj*>(start_objs_buf), columns_num);
+          end_key_.assign(reinterpret_cast<ObObj*>(end_objs_buf), columns_num); 
+        }
+      }
+    }
+    return ret;
+  }
+
   // new compare func for tablet.range and scan_param.range
   inline int compare_with_endkey2(const ObNewRange &r) const
   {
diff --git a/src/common/obsm_utils.cpp b/src/common/obsm_utils.cpp
index 9ee7818d..6ecb0e8d 100644
--- a/src/common/obsm_utils.cpp
+++ b/src/common/obsm_utils.cpp
@@ -310,6 +310,12 @@ int ObSMUtils::get_ob_type(ObObjType &ob_type, EMySQLFieldType mysql_type)
     case OB_MYSQL_TYPE_OB_UROWID:
       ob_type = ObURowIDType;
       break;
+    case OB_MYSQL_TYPE_JSON:
+      ob_type = ObJsonType;
+      break;
+    case OB_MYSQL_TYPE_GEOMETRY:
+      ob_type = ObGeometryType;
+      break;
     default:
       _OB_LOG(WARN, "unsupport MySQL type %d", mysql_type);
       ret = OB_OBJ_TYPE_ERROR;
diff --git a/src/lib/Makemodule.am b/src/lib/Makemodule.am
index 25b2d24a..a828a2be 100644
--- a/src/lib/Makemodule.am
+++ b/src/lib/Makemodule.am
@@ -47,6 +47,7 @@ lib/charset/ob_ctype_uca.c\
 lib/charset/ob_ctype_mb.c\
 lib/charset/ob_ctype_bin.c\
 lib/charset/ob_ctype_simple.c\
+lib/charset/ob_ctype_latin1.c\
 lib/charset/ob_mysql_global.h\
 lib/charset/ob_config.h\
 lib/charset/ob_dtoa.h\
@@ -157,6 +158,7 @@ lib/oblog/ob_trace_log.h\
 lib/oblog/ob_trace_log.cpp\
 lib/oblog/ob_warning_buffer.h\
 lib/oblog/ob_warning_buffer.cpp\
+lib/oblog/ob_simple_trace.h\
 lib/queue/ob_dedup_queue.h\
 lib/queue/ob_dedup_queue.cpp\
 lib/queue/ob_fixed_queue.h\
diff --git a/src/lib/allocator/ob_concurrent_fifo_allocator.h b/src/lib/allocator/ob_concurrent_fifo_allocator.h
index 10c0cdd3..496d747a 100644
--- a/src/lib/allocator/ob_concurrent_fifo_allocator.h
+++ b/src/lib/allocator/ob_concurrent_fifo_allocator.h
@@ -21,17 +21,36 @@ namespace common
 class ObConcurrentFIFOAllocator : public common::ObIAllocator
 {
 public:
-  ObConcurrentFIFOAllocator();
-  virtual ~ObConcurrentFIFOAllocator();
+  /* this function is defined for c driver client compile */
+  ObConcurrentFIFOAllocator() {};
+  /* this function is defined for c driver client compile */
+  virtual ~ObConcurrentFIFOAllocator() {};
 public:
+  /* this function is defined for c driver client compile */
   int init(const int64_t total_limit,
            const int64_t hold_limit,
-           const int64_t page_size);
-  void destroy();
+           const int64_t page_size)
+  {
+    UNUSED(total_limit);
+    UNUSED(hold_limit);
+    UNUSED(page_size);
+    return OB_NOT_IMPLEMENT;
+  }
+  /* this function is defined for c driver client compile */
+  void destroy() {};
 public:
   void set_mod_id(const int64_t mod_id);
-  void *alloc(const int64_t size);
-  void free(void *ptr);
+  /* this function is defined for c driver client compile */
+  void *alloc(const int64_t size)
+  {
+    UNUSED(size);
+    return nullptr;
+  }
+  /* this function is defined for c driver client compile */
+  void free(void *ptr)
+  {
+    UNUSED(ptr);
+  }
   int64_t allocated();
   int64_t hold() const {return 0;}
   int64_t get_direct_alloc_count();
diff --git a/src/lib/allocator/ob_fifo_allocator.h b/src/lib/allocator/ob_fifo_allocator.h
index 2db3b588..c57b38df 100644
--- a/src/lib/allocator/ob_fifo_allocator.h
+++ b/src/lib/allocator/ob_fifo_allocator.h
@@ -89,16 +89,26 @@ class ObFIFOAllocator : public common::ObIAllocator
   static const int64_t ALREADY_FREE = 0xf5eebef0;
   static const int64_t SPECIAL_FLAG = -1;
 public:
-  ObFIFOAllocator();
-  ~ObFIFOAllocator();
-
+  /* this function is defined for c driver client compile */
+  ObFIFOAllocator() {};
+  /* this function is defined for c driver client compile */
+  ~ObFIFOAllocator() {};
+ 
+  /* this function is defined for c driver client compile */
   int init(ObIAllocator *allocator, const int64_t page_size,
-           const int64_t page_hold_limit = 32);
-  void reset();
+           const int64_t page_hold_limit = 32)
+  {
+    UNUSED(allocator);
+    UNUSED(page_size);
+    UNUSED(page_hold_limit);
+    return OB_NOT_IMPLEMENT;
+  }
+  /* this function is defined for c driver client compile */
+  void reset() { /* not support */ }
   void reuse() { /* not support */ }
-  void *alloc(const int64_t size);
+  void *alloc(const int64_t size) { UNUSED(size); return NULL; }
   void *alloc_align(const int64_t size, const int64_t align);
-  void free(void *p);
+  void free(void *p) { UNUSED(p); }
   void set_mod_id(int64_t mod_id);
 
   inline int64_t used() const
diff --git a/src/lib/allocator/ob_lf_fifo_allocator.h b/src/lib/allocator/ob_lf_fifo_allocator.h
index 477ef1c4..d8b78cdf 100644
--- a/src/lib/allocator/ob_lf_fifo_allocator.h
+++ b/src/lib/allocator/ob_lf_fifo_allocator.h
@@ -54,8 +54,10 @@ struct HazardSlot
 class ObLfFIFOAllocator : public common::ObIAllocator
 {
 public:
-  ObLfFIFOAllocator();
-  virtual ~ObLfFIFOAllocator();
+  /* this function is defined for c driver client compile */
+  ObLfFIFOAllocator() {}
+  /* this function is defined for c driver client compile */
+  virtual ~ObLfFIFOAllocator() {}
 public:
   int init(const int64_t page_size,
            const int64_t mod_id,
@@ -64,8 +66,9 @@ class ObLfFIFOAllocator : public common::ObIAllocator
            const int64_t total_limit = INT64_MAX);
   void destroy();
 public:
-  void *alloc(const int64_t size);
-  void free(void *ptr);
+  /* this function is defined for c driver client compile */
+  void *alloc(const int64_t size) { UNUSED(size); return NULL; }
+  void free(void *ptr) { UNUSED(ptr); }
   bool is_fragment(void *ptr);
   int64_t allocated() { return allocated_size_; }
   void set_mod_id(const int64_t mod_id) { mem_attr_.mod_id_ = mod_id; }
diff --git a/src/lib/charset/ob_charset.cpp b/src/lib/charset/ob_charset.cpp
index 33d4a41c..2f786eba 100644
--- a/src/lib/charset/ob_charset.cpp
+++ b/src/lib/charset/ob_charset.cpp
@@ -26,6 +26,7 @@ const ObCharsetWrapper ObCharset::charset_wrap_arr_[CHARSET_WRAPPER_COUNT] =
   {CHARSET_GBK, "GBK charset", CS_TYPE_GBK_CHINESE_CI, 2},
   {CHARSET_UTF16, "UTF-16 Unicode", CS_TYPE_UTF16_GENERAL_CI, 2},
   {CHARSET_GB18030, "GB18030 charset", CS_TYPE_GB18030_CHINESE_CI, 4},
+  {CHARSET_LATIN1, "cp1252 West European", CS_TYPE_LATIN1_SWEDISH_CI, 1}
 };
 
 const ObCollationWrapper ObCharset::collation_wrap_arr_[COLLATION_WRAPPER_COUNT] =
@@ -41,11 +42,13 @@ const ObCollationWrapper ObCharset::collation_wrap_arr_[COLLATION_WRAPPER_COUNT]
   {CS_TYPE_INVALID, CHARSET_INVALID, CS_TYPE_INVALID, false, false, 1},
   {CS_TYPE_GB18030_CHINESE_CI, CHARSET_GB18030, CS_TYPE_GB18030_CHINESE_CI, true, true, 1},
   {CS_TYPE_GB18030_BIN, CHARSET_GB18030, CS_TYPE_GB18030_BIN, false, true, 1},
+  {CS_TYPE_LATIN1_SWEDISH_CI, CHARSET_LATIN1, CS_TYPE_LATIN1_SWEDISH_CI,true, true, 1},
+  {CS_TYPE_LATIN1_BIN, CHARSET_LATIN1, CS_TYPE_LATIN1_BIN,false, true, 1}
 };
 
 void *ObCharset::charset_arr[CS_TYPE_MAX] = {
   NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,                 // 0 ~ 7
-  NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,                 // 8
+  &ob_charset_latin1, NULL, NULL, NULL, NULL, NULL, NULL, NULL,   // 8
   NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,                 // 16
   NULL, NULL, NULL, NULL, &ob_charset_gbk_chinese_ci,             // 24
                                 NULL, NULL, NULL,                 // 29
@@ -53,7 +56,7 @@ void *ObCharset::charset_arr[CS_TYPE_MAX] = {
   NULL, NULL, NULL, NULL, NULL,                                   // 40
                                 &ob_charset_utf8mb4_general_ci,   // 45
                                       &ob_charset_utf8mb4_bin,    // 46
-                                            NULL,                 // 47
+                                      &ob_charset_latin1_bin,     // 47
   NULL, NULL, NULL, NULL, NULL, NULL,                             // 48
                                      &ob_charset_utf16_general_ci,// 54
                                      &ob_charset_utf16_bin,       // 55
@@ -236,8 +239,11 @@ uint32_t ObCharset::locate(ObCollationType collation_type,
     if (OB_UNLIKELY(start < 0 || start > str1_len)) {
       result = 0;
     } else {
-      start = static_cast<int64_t>(charpos(collation_type, str1, str1_len, start));
-      if (static_cast<int64_t>(start) + str2_len > str1_len) {
+      int ret = OB_SUCCESS;
+      start = static_cast<int64_t>(charpos(collation_type, str1, str1_len, start, &ret));
+      if (OB_FAIL(ret)) {
+        result = 0;
+      } else if (static_cast<int64_t>(start) + str2_len > str1_len) {
         result = 0;
       } else if (0 == str2_len) {
         result = static_cast<uint32_t>(start) + 1;
@@ -513,12 +519,15 @@ int ObCharset::well_formed_len(ObCollationType collation_type, const char *str,
   }
   return ret;
 }
+
+// Be careful with this function. The return value may be out of range.
 size_t ObCharset::charpos(const ObCollationType collation_type,
-                              const char *str,
-                              const int64_t str_len,
-                              const int64_t length)
+                          const char *str,
+                          const int64_t str_len,
+                          const int64_t length,
+                          int *ret)
 {
-  size_t ret = 0;
+  size_t res_pos = 0;
   if (OB_UNLIKELY(collation_type <= CS_TYPE_INVALID ||
                   collation_type >= CS_TYPE_MAX) ||
                   OB_ISNULL(ObCharset::charset_arr[collation_type])) {
@@ -528,10 +537,16 @@ size_t ObCharset::charpos(const ObCollationType collation_type,
     if (OB_ISNULL(cs->cset)) {
       LOG_ERROR("unexpected error. invalid argument(s)", K(cs), K(cs->cset));
     } else {
-      ret = cs->cset->charpos(cs, str, str + str_len, length);
+      res_pos = cs->cset->charpos(cs, str, str + str_len, length);
+      if (res_pos > str_len) {
+        res_pos = str_len;
+        if (OB_NOT_NULL(ret)) {
+          *ret = OB_ERROR_OUT_OF_RANGE;
+        }
+      }
     }
   }
-  return ret;
+  return res_pos;
 }
 
 bool ObCharset::wildcmp(ObCollationType collation_type,
@@ -613,7 +628,7 @@ int ObCharset::wc_mb(ObCollationType collation_type, int32_t wc, char *buff, int
       int tmp = cs->cset->wc_mb(cs, wc, reinterpret_cast<uchar*>(buff),
                                 reinterpret_cast<uchar*>(buff + buff_len));
       if (tmp <= 0) {
-        ret = OB_ERROR;
+        ret = OB_ERR_INCORRECT_STRING_VALUE;
       } else {
         ret = OB_SUCCESS;
         length = tmp;
@@ -647,6 +662,10 @@ const char *ObCharset::charset_name(ObCharsetType charset_type)
       ret_name = "gb18030";
       break;
     }
+    case CHARSET_LATIN1: {
+      ret_name = "latin1";
+      break;
+    }
     default: {
       break;
     }
@@ -743,6 +762,10 @@ ObCharsetType ObCharset::charset_type(const ObString &cs_name)
     charset_type = CHARSET_GBK;
   } else if (0 == cs_name.case_compare(ob_charset_utf16_general_ci.csname)) {
     charset_type = CHARSET_UTF16;
+  } else if (0 == cs_name.case_compare(ob_charset_latin1.csname)) {
+    charset_type = CHARSET_LATIN1;
+  } else if (0 == cs_name.case_compare(ob_charset_latin1_bin.csname)) {
+    charset_type = CHARSET_LATIN1;
   }
   return charset_type;
 }
@@ -785,6 +808,10 @@ ObCollationType ObCharset::collation_type(const ObString &cs_name)
     collation_type = CS_TYPE_UTF16_BIN;
   } else if (0 == cs_name.case_compare(ob_charset_utf16_general_ci.name)) {
     collation_type = CS_TYPE_UTF16_GENERAL_CI;
+  } else if (0 == cs_name.case_compare(ob_charset_latin1.name)) {
+    collation_type = CS_TYPE_LATIN1_SWEDISH_CI;
+  } else if (0 == cs_name.case_compare(ob_charset_latin1_bin.name)) {
+    collation_type = CS_TYPE_LATIN1_BIN;
   }
   return collation_type;
 }
@@ -821,6 +848,11 @@ bool ObCharset::is_valid_collation(ObCharsetType charset_type, ObCollationType c
         || CS_TYPE_UTF16_GENERAL_CI == collation_type) {
       ret = true;
     }
+  } else if (CHARSET_LATIN1 == charset_type) {
+    if (CS_TYPE_LATIN1_BIN == collation_type
+        || CS_TYPE_LATIN1_SWEDISH_CI == collation_type) {
+      ret = true;
+    }
   }
   return ret;
 }
@@ -836,7 +868,9 @@ bool ObCharset::is_valid_collation(int64_t collation_type_int)
     || CS_TYPE_GBK_BIN == collation_type
     || CS_TYPE_GBK_CHINESE_CI == collation_type
     || CS_TYPE_UTF16_BIN == collation_type
-    || CS_TYPE_UTF16_GENERAL_CI == collation_type;
+    || CS_TYPE_UTF16_GENERAL_CI == collation_type
+    || CS_TYPE_LATIN1_BIN == collation_type
+    || CS_TYPE_LATIN1_SWEDISH_CI == collation_type;
 }
 
 bool ObCharset::is_valid_charset(int64_t cs_type_int)
@@ -846,7 +880,8 @@ bool ObCharset::is_valid_charset(int64_t cs_type_int)
     || CHARSET_UTF8MB4 == charset_type
     || CHARSET_GBK == charset_type
     || CHARSET_UTF16 == charset_type
-    || CHARSET_GB18030 == charset_type;
+    || CHARSET_GB18030 == charset_type
+    || CHARSET_LATIN1 == charset_type;
 }
 
 ObCharsetType ObCharset::charset_type_by_coll(ObCollationType collation_type)
@@ -878,6 +913,11 @@ ObCharsetType ObCharset::charset_type_by_coll(ObCollationType collation_type)
       charset_type = CHARSET_UTF16;
       break;
     }
+    case CS_TYPE_LATIN1_SWEDISH_CI:
+    case CS_TYPE_LATIN1_BIN: {
+      charset_type = CHARSET_LATIN1;
+      break;
+    }
     default: {
       break;
     }
@@ -1104,6 +1144,10 @@ ObCollationType ObCharset::get_default_collation(ObCharsetType charset_type)
       collation_type = CS_TYPE_UTF16_GENERAL_CI;
       break;
     }
+    case CHARSET_LATIN1: {
+      collation_type = CS_TYPE_LATIN1_SWEDISH_CI;
+      break;
+    }
     default: {
       break;
     }
@@ -1135,6 +1179,10 @@ ObCollationType ObCharset::get_default_collation_oracle(ObCharsetType charset_ty
       collation_type = CS_TYPE_UTF16_BIN;
       break;
     }
+    case CHARSET_LATIN1: {
+      collation_type = CS_TYPE_LATIN1_BIN;
+      break;
+    }
     default: {
       break;
     }
@@ -1166,6 +1214,10 @@ int ObCharset::get_default_collation(ObCharsetType charset_type, ObCollationType
       collation_type = CS_TYPE_UTF16_GENERAL_CI;
       break;
     }
+    case CHARSET_LATIN1: {
+      collation_type = CS_TYPE_LATIN1_SWEDISH_CI;
+      break;
+    }
     default: {
       ret = OB_INVALID_ARGUMENT;
       LOG_WARN("invalid charset type", K(ret), K(charset_type));
@@ -1199,6 +1251,10 @@ ObCollationType ObCharset::get_bin_collation(ObCharsetType charset_type)
       collation_type = CS_TYPE_UTF16_BIN;
       break;
     }
+    case CHARSET_LATIN1: {
+      collation_type = CS_TYPE_LATIN1_BIN;
+      break;
+    }
     default: {
       break;
     }
diff --git a/src/lib/charset/ob_charset.h b/src/lib/charset/ob_charset.h
index b831f0b3..b209c97c 100644
--- a/src/lib/charset/ob_charset.h
+++ b/src/lib/charset/ob_charset.h
@@ -30,15 +30,18 @@ enum ObCharsetType
   CHARSET_GBK = 3,
   CHARSET_UTF16 = 4,
   CHARSET_GB18030 = 5,
+  CHARSET_LATIN1 = 6,
   CHARSET_MAX,
 };
 
 enum ObCollationType
 {
   CS_TYPE_INVALID = 0,
+  CS_TYPE_LATIN1_SWEDISH_CI = 8,
   CS_TYPE_GBK_CHINESE_CI = 28,
   CS_TYPE_UTF8MB4_GENERAL_CI = 45,
   CS_TYPE_UTF8MB4_BIN = 46,
+  CS_TYPE_LATIN1_BIN = 47,
   CS_TYPE_UTF16_GENERAL_CI = 54,
   CS_TYPE_UTF16_BIN = 55,
   CS_TYPE_BINARY = 63,
@@ -100,8 +103,8 @@ class ObCharset
   virtual ~ObCharset() {};
 
 public:
-  static const int64_t CHARSET_WRAPPER_COUNT = 5;
-  static const int64_t COLLATION_WRAPPER_COUNT = 11;
+  static const int64_t CHARSET_WRAPPER_COUNT = 6;
+  static const int64_t COLLATION_WRAPPER_COUNT = 13;
 
   static double strntod(const char *str,
                         size_t str_len,
@@ -201,7 +204,8 @@ class ObCharset
   static size_t charpos(ObCollationType collation_type,
                         const char *str,
                         const int64_t str_len,
-                        const int64_t length);
+                        const int64_t length,
+                        int *ret = NULL);
   // match like pattern
   static bool wildcmp(ObCollationType collation_type,
                       const ObString &str,
diff --git a/src/lib/charset/ob_ctype.h b/src/lib/charset/ob_ctype.h
index 734cfd6d..b11d9467 100644
--- a/src/lib/charset/ob_ctype.h
+++ b/src/lib/charset/ob_ctype.h
@@ -36,6 +36,10 @@ extern "C" {
 #define OB_UTF16_BIN        OB_UTF16 "_bin"
 #define OB_UTF16_UNICODE_CI OB_UTF16 "_unicode_ci"
 
+#define OB_LATIN1 "latin1"
+#define OB_LATIN1_SWEDISH_CI OB_LATIN1 "_swedish_ci"
+#define OB_LATIN1_BIN OB_LATIN1 "_bin"
+
 /* wm_wc and wc_mb return codes */
 #define OB_CS_ILSEQ 0     // mb_wc wrong sequence
 #define OB_CS_ILUNI 0     // wc_mb fail to encode Unicode to charset
@@ -376,6 +380,7 @@ typedef struct ObCharsetInfo
 #define ob_toprint(c)	((c) | 64)
 #define ob_toupper(s,c)	(char) ((s)->to_upper[(uchar) (c)])
 #define ob_tolower(s,c)	(char) ((s)->to_lower[(uchar) (c)])
+#define ob_sort_order(s,c) (char)((s)->sort_order[(uchar)(c)])
 #define	ob_isalpha(s, c)  ((s)->ctype != NULL ? ((s)->ctype+1)[(uchar) (c)] & (_MY_U | _MY_L) : 0)
 #define	ob_isupper(s, c)  ((s)->ctype != NULL ? ((s)->ctype+1)[(uchar) (c)] & _MY_U : 0)
 #define	ob_islower(s, c)  ((s)->ctype != NULL ? ((s)->ctype+1)[(uchar) (c)] & _MY_L : 0)
@@ -412,6 +417,7 @@ extern ObCharsetInfo ob_charset_bin;
 extern ObCharsetInfo ob_charset_utf8mb4_bin;
 extern ObCharsetInfo ob_charset_utf8mb4_general_ci;
 extern ObCharsetInfo ob_charset_latin1;
+extern ObCharsetInfo ob_charset_latin1_bin;
 extern ObCharsetInfo ob_charset_gbk_chinese_ci;
 extern ObCharsetInfo ob_charset_gbk_bin;
 extern ObCharsetInfo ob_charset_utf16_general_ci;
@@ -422,6 +428,8 @@ extern ObCharsetInfo ob_charset_gb18030_bin;
 extern ObCollationHandler ob_collation_mb_bin_handler;
 extern ObCharsetHandler ob_charset_utf8mb4_handler;
 extern ObCharsetHandler ob_charset_utf16_handler;
+extern ObCollationHandler ob_collation_binary_handler;
+extern ObCollationHandler ob_collation_8bit_simple_ci_handler;
 
 //=============================================================================
 
@@ -582,6 +590,43 @@ int ob_wildcmp_unicode(const ObCharsetInfo *cs,
 size_t ob_strxfrm_pad(const ObCharsetInfo *cs, uchar *str, uchar *frmend,
                       uchar *strend, uint nweights, uint flags);
 
+uint ob_mbcharlen_8bit(const ObCharsetInfo *cs __attribute__((unused)),
+                       uint c __attribute__((unused)));
+
+size_t ob_numchars_8bit(const ObCharsetInfo *cs __attribute__((unused)),
+                                   const char *b, const char *e);
+
+size_t ob_charpos_8bit(const ObCharsetInfo *cs __attribute__((unused)),
+                       const char *b  __attribute__((unused)),
+                       const char *e  __attribute__((unused)),
+                       size_t pos);
+
+
+size_t ob_max_bytes_charpos_8bit(const ObCharsetInfo *cs __attribute__((unused)),
+                                 const char *b  __attribute__((unused)),
+                                 const char *e  __attribute__((unused)),
+                                 size_t max_bytes,
+                                 size_t *char_len);
+
+size_t ob_well_formed_len_8bit(const ObCharsetInfo *cs __attribute__((unused)),
+                               const char *start, const char *end,
+                               size_t nchars, int *error);
+
+size_t ob_lengthsp_binary(const ObCharsetInfo *cs __attribute__((unused)),
+                          const char *ptr __attribute__((unused)),
+                          size_t length);
+
+int ob_mb_ctype_8bit(const ObCharsetInfo *cs, int *ctype,
+                     const uchar *s, const uchar *e);
+
+size_t ob_caseup_8bit(const ObCharsetInfo *cs __attribute__((unused)),
+                      char* src __attribute__((unused)), size_t srclen __attribute__((unused)),
+                      char* dst __attribute__((unused)), size_t dstlen __attribute__((unused)));
+
+size_t ob_casedn_8bit(const ObCharsetInfo *cs __attribute__((unused)),
+                      char* src __attribute__((unused)), size_t srclen __attribute__((unused)),
+                      char* dst __attribute__((unused)), size_t dstlen __attribute__((unused)));
+
 #ifdef	__cplusplus
 }
 #endif
diff --git a/src/lib/charset/ob_ctype_bin.c b/src/lib/charset/ob_ctype_bin.c
index 31719d75..00c07062 100644
--- a/src/lib/charset/ob_ctype_bin.c
+++ b/src/lib/charset/ob_ctype_bin.c
@@ -128,7 +128,7 @@ static int ob_wc_mb_bin(const ObCharsetInfo *cs __attribute__((unused)),
   return OB_CS_ILUNI;
 }
 
-static int ob_mb_ctype_8bit(const ObCharsetInfo *cs, int *ctype,
+int ob_mb_ctype_8bit(const ObCharsetInfo *cs, int *ctype,
                    const unsigned char *str, const unsigned char *end)
 {
   if (str >= end) {
@@ -375,7 +375,7 @@ static ObCharsetHandler ob_charset_handler=
   ob_scan_8bit
 };
 
-static ObCollationHandler ob_collation_binary_handler =
+ObCollationHandler ob_collation_binary_handler =
 {
   ob_strnncoll_binary,
   ob_strnncollsp_binary,
diff --git a/src/lib/charset/ob_ctype_latin1.c b/src/lib/charset/ob_ctype_latin1.c
new file mode 100644
index 00000000..27262d00
--- /dev/null
+++ b/src/lib/charset/ob_ctype_latin1.c
@@ -0,0 +1,407 @@
+/** 
+ * Copyright (c) 2021 OceanBase 
+ * OceanBase CE is licensed under Mulan PubL v2. 
+ * You can use this software according to the terms and conditions of the Mulan PubL v2. 
+ * You may obtain a copy of Mulan PubL v2 at: 
+ *          http://license.coscl.org.cn/MulanPubL-2.0 
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, 
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, 
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE. 
+ * See the Mulan PubL v2 for more details.
+ */ 
+
+/*
+*
+* Version: $Id
+*
+* Authors:
+*      - initial release
+*
+*/
+#include "lib/charset/ob_mysql_global.h"
+#include "lib/charset/ob_ctype.h"
+#include "lib/utility/ob_macro_utils.h"
+
+static unsigned char ctype_latin1[] = {
+    0,  32,  32,  32,  32,  32,  32,  32,  32,  32,  40,  40, 40, 40, 40, 32,
+    32, 32,  32,  32,  32,  32,  32,  32,  32,  32,  32,  32, 32, 32, 32, 32,
+    32, 72,  16,  16,  16,  16,  16,  16,  16,  16,  16,  16, 16, 16, 16, 16,
+    16, 132, 132, 132, 132, 132, 132, 132, 132, 132, 132, 16, 16, 16, 16, 16,
+    16, 16,  129, 129, 129, 129, 129, 129, 1,   1,   1,   1,  1,  1,  1,  1,
+    1,  1,   1,   1,   1,   1,   1,   1,   1,   1,   1,   1,  16, 16, 16, 16,
+    16, 16,  130, 130, 130, 130, 130, 130, 2,   2,   2,   2,  2,  2,  2,  2,
+    2,  2,   2,   2,   2,   2,   2,   2,   2,   2,   2,   2,  16, 16, 16, 16,
+    32, 16,  0,   16,  2,   16,  16,  16,  16,  16,  16,  1,  16, 1,  0,  1,
+    0,  0,   16,  16,  16,  16,  16,  16,  16,  16,  16,  2,  16, 2,  0,  2,
+    1,  72,  16,  16,  16,  16,  16,  16,  16,  16,  16,  16, 16, 16, 16, 16,
+    16, 16,  16,  16,  16,  16,  16,  16,  16,  16,  16,  16, 16, 16, 16, 16,
+    16, 1,   1,   1,   1,   1,   1,   1,   1,   1,   1,   1,  1,  1,  1,  1,
+    1,  1,   1,   1,   1,   1,   1,   1,   16,  1,   1,   1,  1,  1,  1,  1,
+    2,  2,   2,   2,   2,   2,   2,   2,   2,   2,   2,   2,  2,  2,  2,  2,
+    2,  2,   2,   2,   2,   2,   2,   2,   16,  2,   2,   2,  2,  2,  2,  2,
+    2};
+
+static unsigned char to_lower_latin1[] = {
+    0,   1,   2,   3,   4,   5,   6,   7,   8,   9,   10,  11,  12,  13,  14,
+    15,  16,  17,  18,  19,  20,  21,  22,  23,  24,  25,  26,  27,  28,  29,
+    30,  31,  32,  33,  34,  35,  36,  37,  38,  39,  40,  41,  42,  43,  44,
+    45,  46,  47,  48,  49,  50,  51,  52,  53,  54,  55,  56,  57,  58,  59,
+    60,  61,  62,  63,  64,  97,  98,  99,  100, 101, 102, 103, 104, 105, 106,
+    107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121,
+    122, 91,  92,  93,  94,  95,  96,  97,  98,  99,  100, 101, 102, 103, 104,
+    105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119,
+    120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134,
+    135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149,
+    150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164,
+    165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179,
+    180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 224, 225, 226,
+    227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241,
+    242, 243, 244, 245, 246, 215, 248, 249, 250, 251, 252, 253, 254, 223, 224,
+    225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
+    240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254,
+    255};
+
+static unsigned char to_upper_latin1[] = {
+    0,   1,   2,   3,   4,   5,   6,   7,   8,   9,   10,  11,  12,  13,  14,
+    15,  16,  17,  18,  19,  20,  21,  22,  23,  24,  25,  26,  27,  28,  29,
+    30,  31,  32,  33,  34,  35,  36,  37,  38,  39,  40,  41,  42,  43,  44,
+    45,  46,  47,  48,  49,  50,  51,  52,  53,  54,  55,  56,  57,  58,  59,
+    60,  61,  62,  63,  64,  65,  66,  67,  68,  69,  70,  71,  72,  73,  74,
+    75,  76,  77,  78,  79,  80,  81,  82,  83,  84,  85,  86,  87,  88,  89,
+    90,  91,  92,  93,  94,  95,  96,  65,  66,  67,  68,  69,  70,  71,  72,
+    73,  74,  75,  76,  77,  78,  79,  80,  81,  82,  83,  84,  85,  86,  87,
+    88,  89,  90,  123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134,
+    135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149,
+    150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164,
+    165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179,
+    180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194,
+    195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209,
+    210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 192,
+    193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
+    208, 209, 210, 211, 212, 213, 214, 247, 216, 217, 218, 219, 220, 221, 222,
+    255};
+
+static unsigned char sort_order_latin1[] = {
+    0,   1,   2,   3,   4,   5,   6,   7,   8,   9,   10,  11,  12,  13,  14,
+    15,  16,  17,  18,  19,  20,  21,  22,  23,  24,  25,  26,  27,  28,  29,
+    30,  31,  32,  33,  34,  35,  36,  37,  38,  39,  40,  41,  42,  43,  44,
+    45,  46,  47,  48,  49,  50,  51,  52,  53,  54,  55,  56,  57,  58,  59,
+    60,  61,  62,  63,  64,  65,  66,  67,  68,  69,  70,  71,  72,  73,  74,
+    75,  76,  77,  78,  79,  80,  81,  82,  83,  84,  85,  86,  87,  88,  89,
+    90,  91,  92,  93,  94,  95,  96,  65,  66,  67,  68,  69,  70,  71,  72,
+    73,  74,  75,  76,  77,  78,  79,  80,  81,  82,  83,  84,  85,  86,  87,
+    88,  89,  90,  123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134,
+    135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149,
+    150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164,
+    165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179,
+    180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 65,  65,  65,
+    65,  92,  91,  92,  67,  69,  69,  69,  69,  73,  73,  73,  73,  68,  78,
+    79,  79,  79,  79,  93,  215, 216, 85,  85,  85,  89,  89,  222, 223, 65,
+    65,  65,  65,  92,  91,  92,  67,  69,  69,  69,  69,  73,  73,  73,  73,
+    68,  78,  79,  79,  79,  79,  93,  247, 216, 85,  85,  85,  89,  89,  222,
+    255};
+
+
+static unsigned short cs_to_uni[] = {
+    0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008,
+    0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, 0x0010, 0x0011,
+    0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, 0x0018, 0x0019, 0x001A,
+    0x001B, 0x001C, 0x001D, 0x001E, 0x001F, 0x0020, 0x0021, 0x0022, 0x0023,
+    0x0024, 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002A, 0x002B, 0x002C,
+    0x002D, 0x002E, 0x002F, 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035,
+    0x0036, 0x0037, 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E,
+    0x003F, 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
+    0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, 0x0050,
+    0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, 0x0058, 0x0059,
+    0x005A, 0x005B, 0x005C, 0x005D, 0x005E, 0x005F, 0x0060, 0x0061, 0x0062,
+    0x0063, 0x0064, 0x0065, 0x0066, 0x0067, 0x0068, 0x0069, 0x006A, 0x006B,
+    0x006C, 0x006D, 0x006E, 0x006F, 0x0070, 0x0071, 0x0072, 0x0073, 0x0074,
+    0x0075, 0x0076, 0x0077, 0x0078, 0x0079, 0x007A, 0x007B, 0x007C, 0x007D,
+    0x007E, 0x007F, 0x20AC, 0x0081, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020,
+    0x2021, 0x02C6, 0x2030, 0x0160, 0x2039, 0x0152, 0x008D, 0x017D, 0x008F,
+    0x0090, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014, 0x02DC,
+    0x2122, 0x0161, 0x203A, 0x0153, 0x009D, 0x017E, 0x0178, 0x00A0, 0x00A1,
+    0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7, 0x00A8, 0x00A9, 0x00AA,
+    0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF, 0x00B0, 0x00B1, 0x00B2, 0x00B3,
+    0x00B4, 0x00B5, 0x00B6, 0x00B7, 0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC,
+    0x00BD, 0x00BE, 0x00BF, 0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5,
+    0x00C6, 0x00C7, 0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE,
+    0x00CF, 0x00D0, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7,
+    0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x00DD, 0x00DE, 0x00DF, 0x00E0,
+    0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7, 0x00E8, 0x00E9,
+    0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF, 0x00F0, 0x00F1, 0x00F2,
+    0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7, 0x00F8, 0x00F9, 0x00FA, 0x00FB,
+    0x00FC, 0x00FD, 0x00FE, 0x00FF};
+static unsigned char pl00[] = {
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
+    0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+    0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23,
+    0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
+    0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B,
+    0x3C, 0x3D, 0x3E, 0x3F, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
+    0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53,
+    0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,
+    0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B,
+    0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
+    0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, 0x00, 0x81, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8D, 0x00, 0x8F,
+    0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x9D, 0x00, 0x00, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7,
+    0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0xB3,
+    0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF,
+    0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB,
+    0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
+    0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, 0xE0, 0xE1, 0xE2, 0xE3,
+    0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
+    0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB,
+    0xFC, 0xFD, 0xFE, 0xFF};
+static unsigned char pl01[] = {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8C, 0x9C,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x8A, 0x9A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x9F, 0x00, 0x00, 0x00, 0x00, 0x8E, 0x9E, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x83, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00};
+static unsigned char pl02[] = {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x98, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00};
+static unsigned char pl20[] = {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x96, 0x97, 0x00, 0x00, 0x00,
+    0x91, 0x92, 0x82, 0x00, 0x93, 0x94, 0x84, 0x00, 0x86, 0x87, 0x95, 0x00,
+    0x00, 0x00, 0x85, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0x9B, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00};
+static unsigned char pl21[] = {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x99, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00};
+static unsigned char *uni_to_cs[] = {
+    pl00,    pl01,    pl02,    NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    pl20,    pl21,    NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL};
+
+
+static int ob_mb_wc_latin1(const ObCharsetInfo *cs __attribute__((unused)),
+	      ob_wc_t *pwc, const unsigned char *str, const unsigned char *end) {
+
+  if (str >= end) return OB_CS_TOOSMALL;
+  *pwc = cs_to_uni[*str];
+  return (!pwc[0] && str[0]) ? -1 : 1;
+
+}
+
+static int ob_wc_mb_latin1(const ObCharsetInfo *cs  __attribute__((unused)),
+	      ob_wc_t wc, unsigned char *str, unsigned char *end) {
+  const unsigned char *pl;
+
+  if (str >= end) return OB_CS_TOOSMALL;
+
+  if (wc > 0xFFFF) return OB_CS_ILUNI;
+
+  pl = uni_to_cs[wc >> 8];
+  str[0] = pl ? pl[wc & 0xFF] : '\0';
+  return (!str[0] && wc) ? OB_CS_ILUNI : 1;
+}
+
+
+
+static ObCharsetHandler ob_charset_latin1_handler=
+{
+  //NULL,			/* init */
+  NULL,			/* ismbchar      */
+  ob_mbcharlen_8bit,	/* mbcharlen     */
+  ob_numchars_8bit,
+  ob_charpos_8bit,
+  ob_max_bytes_charpos_8bit,
+  ob_well_formed_len_8bit,
+  ob_lengthsp_binary,
+  //ob_numcells_8bit,
+  ob_mb_wc_latin1,
+  ob_wc_mb_latin1,
+  ob_mb_ctype_8bit,
+  //ob_case_str_bin,
+  //ob_case_str_bin,
+  ob_caseup_8bit,
+  ob_casedn_8bit,
+  //ob_snprintf_8bit,
+  //ob_long10_to_str_8bit,
+  //ob_longlong10_to_str_8bit,
+  ob_fill_8bit,
+  ob_strntol_8bit,
+  ob_strntoul_8bit,
+  ob_strntoll_8bit,
+  ob_strntoull_8bit,
+  ob_strntod_8bit,
+  //ob_strtoll10_8bit,
+  ob_strntoull10rnd_8bit,
+  ob_scan_8bit
+};
+
+
+
+
+
+ObCharsetInfo ob_charset_latin1 = {
+    8,0,0,                              /* number    */
+    OB_CS_COMPILED | OB_CS_PRIMARY, /* state */
+    OB_LATIN1,                       /* cs name    */
+    OB_LATIN1_SWEDISH_CI,            /* name      */
+    "cp1252 West European",         /* comment   */
+    NULL,                        /* tailoring */
+    //NULL,                        /* coll_param */
+    ctype_latin1,
+    to_lower_latin1,
+    to_upper_latin1,
+    sort_order_latin1,
+    NULL,             /* uca          */
+    //NULL,           /* tab_to_uni   */
+    //NULL,             /* tab_from_uni */
+    &ob_unicase_default, /* caseinfo     */
+    NULL,             /* state_map    */
+    NULL,             /* ident_map    */
+    1,                   /* strxfrm_multiply */
+    1,                   /* caseup_multiply  */
+    1,                   /* casedn_multiply  */
+    1,                   /* mbminlen   */
+    1,                   /* mbmaxlen   */
+    0,                   /* min_sort_char */
+    0xFF,                 /* max_sort_char */
+    ' ',                 /* pad char      */
+    0,               /* escape_with_backslash_is_dangerous */
+    1,                   /* levels_for_compare */
+    1,                   /* levels_for_order */
+    &ob_charset_latin1_handler,
+    &ob_collation_8bit_simple_ci_handler};
+
+ObCharsetInfo ob_charset_latin1_bin = {
+    47,0,0,                              /* number    */
+    OB_CS_COMPILED | OB_CS_BINSORT, /* state     */
+    OB_LATIN1,                       /* cs name    */
+    OB_LATIN1_BIN,            /* name      */
+    "cp1252 West European",         /* comment   */
+    NULL,                        /* tailoring */
+    ctype_latin1,
+    to_lower_latin1,
+    to_upper_latin1,
+    NULL,             /* sort_order   */
+    NULL,             /* uca          */
+    //NULL,           /* tab_to_uni   */
+    //NULL,             /* tab_from_uni */
+    &ob_unicase_default, /* caseinfo     */
+    NULL,             /* state_map    */
+    NULL,             /* ident_map    */
+    1,                   /* strxfrm_multiply */
+    1,                   /* caseup_multiply  */
+    1,                   /* casedn_multiply  */
+    1,                   /* mbminlen   */
+    1,                   /* mbmaxlen   */
+    0,                   /* min_sort_char */
+    0xFF,                 /* max_sort_char */
+    ' ',                 /* pad char      */
+    0,               /* escape_with_backslash_is_dangerous */
+    1,                   /* levels_for_compare */
+    1,                   /* levels_for_order */
+    &ob_charset_latin1_handler,
+    &ob_collation_binary_handler};
+
diff --git a/src/lib/charset/ob_ctype_simple.c b/src/lib/charset/ob_ctype_simple.c
index 9fbee870..601f3906 100644
--- a/src/lib/charset/ob_ctype_simple.c
+++ b/src/lib/charset/ob_ctype_simple.c
@@ -814,3 +814,262 @@ size_t ob_strxfrm_pad(const ObCharsetInfo *cs, unsigned char *str, unsigned char
   return frm_end - str;
 }
 
+size_t ob_caseup_8bit(const ObCharsetInfo *cs __attribute__((unused)),
+    char* src __attribute__((unused)), size_t srclen __attribute__((unused)),
+    char* dst __attribute__((unused)), size_t dstlen __attribute__((unused))){
+  const char *end = src + srclen;
+  ob_charset_assert(src == dst && srclen == dstlen);
+  for (; src != end; src++) *src = ob_toupper(cs,*src);
+  return srclen;
+}
+
+size_t ob_casedn_8bit(const ObCharsetInfo *cs __attribute__((unused)),
+    char* src __attribute__((unused)), size_t srclen __attribute__((unused)),
+    char* dst __attribute__((unused)), size_t dstlen __attribute__((unused))){
+  char *end = src + srclen;
+  ob_charset_assert(src == dst && srclen == dstlen);
+  for (; src != end; src++) *src = ob_tolower(cs,*src);
+  return srclen;
+}
+
+int ob_strnncoll_simple(const ObCharsetInfo *cs __attribute__((unused)),
+                               const uchar *s, size_t slen,
+                               const uchar *t, size_t tlen,
+                               bool is_prefix)
+{
+  size_t len = (slen > tlen) ? tlen : slen;
+  if (is_prefix && slen > tlen) slen = tlen;
+  while (len--) {
+    if(ob_sort_order(cs,*s)!=ob_sort_order(cs,*t)) {
+      return (int)ob_sort_order(cs,*s) - (int)ob_sort_order(cs,*t);
+    }
+    s++;
+    t++;
+  }
+  return slen > tlen ? 1 : slen < tlen ? -1 : 0;
+}
+
+static int ob_strnncollsp_simple(const ObCharsetInfo *cs
+                          __attribute__((unused)),
+                          const uchar *s, size_t slen,
+                          const uchar *t, size_t tlen,
+                          bool diff_if_only_endspace_difference
+                          __attribute__((unused)))
+{
+  size_t len = (slen > tlen) ? tlen : slen;
+  for (size_t i = 0; i < len; i++){  
+     if(ob_sort_order(cs,*s)!=ob_sort_order(cs,*t)) {
+        return (int)ob_sort_order(cs,*s) - (int)ob_sort_order(cs,*t);
+     }
+      s++;
+      t++;
+  }
+  int res = 0;
+  if (slen != tlen) {
+    int swap = 1;
+    if (diff_if_only_endspace_difference){
+      res=1;
+    }
+    /*
+      Check the next not space character of the longer key. If it's < ' ',
+      then it's smaller than the other key.
+    */
+    if (slen < tlen) {
+      slen = tlen;
+
+      s = t;
+      swap = -1;
+      res = -res;
+    }
+    /*
+    "a"  == "a "
+    "a\0" < "a"
+    "a\0" < "a "
+    */
+    for (const unsigned char* end = s + slen - len; s < end; s++) {
+      if (ob_sort_order(cs,*s) != ob_sort_order(cs,(int)(' ')))
+        return ob_sort_order(cs,*s) < ob_sort_order(cs,(int)(' ')) ? -swap : swap;
+    }
+  }
+  return res;
+}
+
+
+
+static size_t ob_strnxfrm_simple(const ObCharsetInfo* cs __attribute__((unused)), unsigned char* dst, size_t dstlen,
+    uint nweights, const unsigned char* src, size_t srclen, unsigned int flags, bool* is_valid_unicode)
+{
+  uchar *dst0 = dst;
+  const uchar *end;
+  const uchar *remainder;
+  size_t frmlen;
+  frmlen = dstlen > nweights ? nweights : dstlen;
+  frmlen = frmlen > srclen ? srclen : frmlen; 
+  end = src + frmlen;
+  remainder = src + (frmlen % 8);
+  for (; src < remainder;) *dst++ = ob_sort_order(cs,*src++);
+  while(src < end) {
+    *dst++ = ob_sort_order(cs,*src++);
+    *dst++ = ob_sort_order(cs,*src++);
+    *dst++ = ob_sort_order(cs,*src++);
+    *dst++ = ob_sort_order(cs,*src++);
+    *dst++ = ob_sort_order(cs,*src++);
+    *dst++ = ob_sort_order(cs,*src++);
+    *dst++ = ob_sort_order(cs,*src++);
+    *dst++ = ob_sort_order(cs,*src++);
+  }
+  return ob_strxfrm_pad_desc_and_reverse(cs, dst0, dst, dst0 + dstlen, nweights - srclen, flags, 0);
+}
+
+#define likeconv(s, A) (A)
+#define INC_PTR(cs, A, B) (A)++
+
+static int ob_wildcmp_8bit_impl(const ObCharsetInfo* cs, const char* str_ptr, const char* str_end_ptr,
+    const char* wild_str, const char* wild_end, int escape_char, int w_one_char, int w_many_char, int recurse_level)
+{
+  int cmp_result = -1;
+
+  while (wild_str != wild_end) {
+    while (*wild_str != w_many_char && *wild_str != w_one_char) {
+      if (*wild_str == escape_char && wild_str + 1 != wild_end) {
+        wild_str++;
+      }
+      if (str_ptr == str_end_ptr || likeconv(cs, *wild_str++) != likeconv(cs, *str_ptr++)) {
+        return 1;
+      }
+      if (wild_str == wild_end) {
+        return str_ptr != str_end_ptr;
+      }
+      cmp_result = 1;
+    }
+    if (*wild_str == w_one_char) {
+      do {
+        if (str_ptr == str_end_ptr) {
+          return (cmp_result);
+        }
+        INC_PTR(cs, str_ptr, str_end_ptr);
+      } while (++wild_str < wild_end && *wild_str == w_one_char);
+      if (wild_str == wild_end) {
+        break;
+      }
+    }
+    if (*wild_str == w_many_char) {
+      unsigned char cmp = 0;
+      wild_str++;
+      for (; wild_str != wild_end; wild_str++) {
+        if (*wild_str == w_many_char) {
+          continue;
+        }
+        if (*wild_str == w_one_char) {
+          if (str_ptr == str_end_ptr) {
+            return (-1);
+          }
+          INC_PTR(cs, str_ptr, str_end_ptr);
+          continue;
+        }
+        break;
+      }
+      if (wild_str == wild_end) {
+        return (0);
+      }
+      if (str_ptr == str_end_ptr) {
+        return (-1);
+      }
+
+      if ((cmp = *wild_str) == escape_char && wild_str + 1 != wild_end) {
+        cmp = *++wild_str;
+      }
+
+      INC_PTR(cs, wild_str, wild_end);
+      cmp = likeconv(cs, cmp);
+      do {
+        while (str_ptr != str_end_ptr && (unsigned char)likeconv(cs, *str_ptr) != cmp) {
+          str_ptr++;
+        }
+        if (str_ptr++ == str_end_ptr) {
+          return -1;
+        }
+        do {
+          int tmp = ob_wildcmp_8bit_impl(
+              cs, str_ptr, str_end_ptr, wild_str, wild_end, escape_char, w_one_char, w_many_char, recurse_level + 1);
+          if (tmp <= 0) {
+            return tmp;
+          }
+        } while (0);
+      } while (str_ptr != str_end_ptr);
+      return -1;
+    }
+  }
+  return str_ptr != str_end_ptr ? 1 : 0;
+}
+
+int ob_wildcmp_8bit(const ObCharsetInfo* cs, const char* str, const char* str_end, const char* wildstr,
+    const char* wildend, int escape, int w_one, int w_many)
+{
+  return ob_wildcmp_8bit_impl(cs, str, str_end, wildstr, wildend, escape, w_one, w_many, 1);
+}
+
+
+uint ob_instr_simple(const ObCharsetInfo* cs __attribute__((unused)), const char* b, size_t b_length,
+    const char* s, size_t s_length, ob_match_t* match, uint nmatch)
+{
+  register const unsigned char *str, *search, *end, *search_end;
+
+  if (s_length <= b_length) {
+    if (!s_length) {
+      if (nmatch) {
+        match->beg = 0;
+        match->end = 0;
+        match->mb_len = 0;
+      }
+      return 1; /* Empty string is always found */
+    }
+
+    str = (const unsigned char*)b;
+    search = (const unsigned char*)s;
+    end = (const unsigned char*)b + b_length - s_length + 1;
+    search_end = (const unsigned char*)s + s_length;
+
+  skip:
+    while (str != end) {
+      if ((*str++) == (*search)) {
+        register const unsigned char *i, *j;
+
+        i = str;
+        j = search + 1;
+
+        while (j != search_end)
+          if ((*i++) != (*j++))
+            goto skip;
+
+        if (nmatch > 0) {
+          match[0].beg = 0;
+          match[0].end = (size_t)(str - (const unsigned char*)b - 1);
+          match[0].mb_len = match[0].end;
+
+          if (nmatch > 1) {
+            match[1].beg = match[0].end;
+            match[1].end = match[0].end + s_length;
+            match[1].mb_len = match[1].end - match[1].beg;
+          }
+        }
+        return 2;
+      }
+    }
+  }
+  return 0;
+}
+
+
+ObCollationHandler ob_collation_8bit_simple_ci_handler = {
+    // NULL /* init */
+    ob_strnncoll_simple,
+    ob_strnncollsp_simple,
+    ob_strnxfrm_simple,
+    //ob_strnxfrmlen_simple,
+    ob_like_range_simple,
+    ob_wildcmp_8bit,
+    //NULL,//ob_strcasecmp_8bit,
+    ob_instr_simple,
+    ob_hash_sort_simple,
+    ob_propagate_simple};
diff --git a/src/lib/hash/ob_build_in_hashmap.h b/src/lib/hash/ob_build_in_hashmap.h
index 61fb13c8..20bfb26d 100644
--- a/src/lib/hash/ob_build_in_hashmap.h
+++ b/src/lib/hash/ob_build_in_hashmap.h
@@ -16,6 +16,7 @@
 #include "lib/hash_func/ob_hash_func.h"
 #include "lib/hash/ob_hashutils.h"
 #include "lib/list/ob_intrusive_list.h"
+#include "lib/lock/ob_drw_lock.h"
 
 namespace oceanbase
 {
@@ -240,11 +241,117 @@ class ObBuildInHashMap
     return ret;
   }
 
-private:
+protected:
   ObBuildInBucket buckets_[bucket_num];
   int64_t count_; // of elements stored in the map.
   BucketChain bucket_chain_;
 };
+
+template <typename H, int64_t bucket_num = 16>
+class ObBuildInHashMapForRefCount : public ObBuildInHashMap <H, bucket_num> {
+public:
+  // Make embedded types easier to use by importing them to the class namespace.
+  typedef H Hasher; // Rename and promote.
+  typedef typename Hasher::Key Key; // Key type.
+  typedef typename Hasher::Value Value; // Stored value (element) type.
+  typedef typename Hasher::ListHead ListHead; // Anchor for value chain.
+
+  ObBuildInHashMapForRefCount() : ObBuildInHashMap<H, bucket_num>() {}
+
+  // put a key value pair into HashMap
+  // @retval OB_SUCCESS for success
+  // @retval OB_HASH_EXIST when the value's pointer already exist
+  int set_refactored(Value *value)
+  {
+    int ret = OB_SUCCESS;
+    Key key = Hasher::key(value);
+    obsys::CWLockGuard wlock(locks_[Hasher::hash(key) % bucket_num]);
+    ret = ObBuildInHashMap<H, bucket_num>::set_refactored(value);
+    if (OB_SUCC(ret)) {
+      Hasher::inc_ref(value);
+    }
+    return ret;
+  }
+
+  // put a key value pair into HashMap
+  // @retval OB_SUCCESS for success
+  // @retval OB_HASH_EXIST when the value's key already exist
+  int unique_set(Value *value)
+  {
+    int ret = OB_SUCCESS;
+    Key key = Hasher::key(value);
+    obsys::CWLockGuard wlock(locks_[Hasher::hash(key) % bucket_num]);
+    struct ObBuildInHashMap<H, bucket_num>::ObBuildInBucket &bucket = ObBuildInHashMap<H, bucket_num>::buckets_[Hasher::hash(key) % bucket_num];
+    if (!bucket.chain_.in(value)) {
+      Value *v = bucket.chain_.head_;
+      while (NULL != v && ((!Hasher::equal(key, Hasher::key(v)) && (v != value)) || 0 == Hasher::get_ref(v))) {
+        v = ListHead::next(v);
+      }
+      if (NULL == v) {
+        bucket.chain_.push(value);
+        ++ObBuildInHashMap<H, bucket_num>::count_;
+        // not empty, put it on the non-empty list.
+        if (1 == ++(bucket.count_)) {
+          ObBuildInHashMap<H, bucket_num>::bucket_chain_.push(&bucket);
+        }
+      } else {
+        ret = OB_HASH_EXIST;
+      }
+    } else {
+      ret = OB_HASH_EXIST;
+    }
+    if (OB_SUCC(ret)) {
+      Hasher::inc_ref(value);
+    }
+    return ret;
+  }
+
+  // @retval OB_SUCCESS for success
+  // @retval OB_HASH_NOT_EXIST for key not exist
+  int get_refactored(Key key, Value *&value)
+  {
+    int ret = OB_HASH_NOT_EXIST;
+    obsys::CRLockGuard rlock(locks_[Hasher::hash(key) % bucket_num]);
+    const struct ObBuildInHashMap<H, bucket_num>::ObBuildInBucket &bucket = ObBuildInHashMap<H, bucket_num>::buckets_[Hasher::hash(key) % bucket_num];
+    Value *v = bucket.chain_.head_;
+    while (NULL != v && (!Hasher::equal(key, Hasher::key(v)) || 0 == Hasher::get_ref(v))) {
+      v = ListHead::next(v);
+    }
+    if (NULL != (value = v)) {
+      ret = OB_SUCCESS;;
+    }
+    if (OB_SUCC(ret)) {
+      while (true) {
+        int64_t ref = Hasher::get_ref(v);
+        if(ref > 0) {
+          if (!Hasher::bcas_ref(value, ref, ref + 1)) {
+            PAUSE();
+          } else {
+            break;
+          }
+        } else {
+          ret = OB_HASH_NOT_EXIST;
+          value = NULL;
+          break;
+        }
+      }
+    }
+    return ret;
+  }
+
+  void remove(Value* value)
+  {
+    if (NULL != value) {
+      obsys::CWLockGuard wlock(locks_[Hasher::hash(Hasher::key(value)) % bucket_num]);
+      ObBuildInHashMap<H, bucket_num>::remove(value);
+      Hasher::destroy(value);
+    }
+  }
+
+protected:
+  mutable obsys::CRWLock locks_[bucket_num];
+};
+
 } // namespace hash
 } // namespace common
 } // namespace oceanbase
diff --git a/src/lib/lock/ob_bucket_lock.h b/src/lib/lock/ob_bucket_lock.h
index 3e850cbb..a4ef58a3 100644
--- a/src/lib/lock/ob_bucket_lock.h
+++ b/src/lib/lock/ob_bucket_lock.h
@@ -23,8 +23,10 @@ namespace common
 class ObBucketLock
 {
 public:
-  ObBucketLock();
-  virtual ~ObBucketLock();
+  /* this function is defined for c driver client compile */
+  ObBucketLock() {}
+  /* this function is defined for c driver client compile */
+  virtual ~ObBucketLock() {}
   int init(
       const uint64_t bucket_cnt,
       const uint32_t latch_id = ObLatchIds::DEFAULT_BUCKET_LOCK,
diff --git a/src/lib/lock/ob_latch.cpp b/src/lib/lock/ob_latch.cpp
index a53ef883..9d717f82 100644
--- a/src/lib/lock/ob_latch.cpp
+++ b/src/lib/lock/ob_latch.cpp
@@ -279,7 +279,10 @@ int ObLatchWaitQueue::try_lock(
           COMMON_LOG(ERROR, "Fail to add proc to wait list, ", K(ret));
         }
       }
-      proc.wait_ = 1;
+
+      if (OB_EAGAIN == ret) {
+        proc.wait_ = 1;
+      }
     }
 
     unlock_bucket(bucket);
diff --git a/src/lib/net/ob_addr.cpp b/src/lib/net/ob_addr.cpp
index ee6fa0ba..eda722a7 100644
--- a/src/lib/net/ob_addr.cpp
+++ b/src/lib/net/ob_addr.cpp
@@ -28,29 +28,49 @@ namespace common
 // --------------------------------------------------------
 // class ObAddr implements
 // --------------------------------------------------------
-uint32_t ObAddr::convert_ipv4_addr(const char *ip)
+int ObAddr::convert_ipv4_addr(const char *ip)
 {
-  in_addr binary;
-  int iret = 0;
-  uint32_t result = 0;
+  int ret = OB_SUCCESS;
+  in_addr in;
 
   if (!OB_ISNULL(ip)) {
-    memset(&binary, 0, sizeof (binary));
-    iret = inet_pton(AF_INET, ip, &binary);
-    if (iret == -1) {        // no support family
-      binary.s_addr = 0;
-    } else if (iret == 0) {  // invalid ip string
-      binary.s_addr = 0;
+    MEMSET(&in, 0, sizeof (in));
+    int rt = inet_pton(AF_INET, ip, &in);
+    if (rt != 1) { // wrong ip or error
+      in.s_addr = 0;
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("convert ipv4 addr failed", K(ip));
+    } else {
+      ip_.v4_ = ntohl(in.s_addr);
     }
-    result = ntohl(binary.s_addr);
   }
-  return result;
+  return ret;
+}
+
+int ObAddr::convert_ipv6_addr(const char *ip)
+{
+  int ret = OB_SUCCESS;
+  in6_addr in6;
+  if (!OB_ISNULL(ip)) {
+    memset(&in6, 0, sizeof(in6));
+    ret = inet_pton(AF_INET6, ip, &in6);
+    if (ret != 1) {
+      memset(&in6, 0, sizeof(in6));
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("convert ipv6 addr failed", K(ip));
+    } else {
+      ret = OB_SUCCESS;
+      // Stored here in big-endian format
+      MEMCPY(ip_.v6_, in6.s6_addr, sizeof(ip_.v6_));
+    }
+  }
+  return ret;
 }
 
 int ObAddr::parse_from_cstring(const char *ipport)
 {
   int ret = OB_SUCCESS;
-  char buf[INET6_ADDRSTRLEN] = "";
+  char buf[MAX_IP_ADDR_LENGTH] = "";
   int port = 0;
 
   if (!OB_ISNULL(ipport)) {
@@ -73,15 +93,16 @@ int ObAddr::parse_from_cstring(const char *ipport)
 
   if (OB_SUCC(ret)) {
     if ('[' != buf[0]) {  // IPV4 format
-      if (false == set_ipv4_addr(buf, port))
-      {
+      if (false == set_ipv4_addr(buf, port)) {
         ret = OB_INVALID_ARGUMENT;
       }
     } else {              // IPV6 format
       const char *ipv6 = buf + 1;
       if (']' == buf[strlen(buf) - 1]) {
         buf[strlen(buf) - 1] = '\0';
-        IGNORE_RETURN set_ipv6_addr(ipv6, port);
+        if (!set_ipv6_addr(ipv6, port)) {
+          ret = OB_INVALID_ARGUMENT;
+        }
       } else {
         ret = OB_INVALID_ARGUMENT;
       }
@@ -109,6 +130,17 @@ int64_t ObAddr::to_string(char *buffer, const int64_t size) const
                         (ip_.v4_ >> 8) & 0xFF,
                         (ip_.v4_) & 0xFF);
       }
+    } else if (version_ == IPV6) {
+      char buf[MAX_IP_ADDR_LENGTH];
+      struct in6_addr in6;
+      memset(buf, 0, sizeof(buf));
+      MEMCPY(in6.s6_addr, ip_.v6_, sizeof(ip_.v6_));
+      inet_ntop(AF_INET6, &in6, buf, MAX_IP_ADDR_LENGTH);
+      if (port_ > 0) {
+        databuff_printf(buffer, size, pos, "\"[%s]:%d\"", buf, port_);
+      } else {
+        databuff_printf(buffer, size, pos, "\"%s\"", buf);
+      }
     }
   }
   return pos;
@@ -124,6 +156,13 @@ bool ObAddr::ip_to_string(char *buffer, const int32_t size) const
                (ip_.v4_ >> 16) & 0xFF,
                (ip_.v4_ >> 8) & 0xFF,
                (ip_.v4_) & 0xFF);
+    } else if (version_ == IPV6) {
+      char buf[MAX_IP_ADDR_LENGTH];
+      struct in6_addr in6;
+      memset(buf, 0, sizeof(buf));
+      MEMCPY(in6.s6_addr, ip_.v6_, sizeof(ip_.v6_));
+      inet_ntop(AF_INET6, &in6, buf, MAX_IP_ADDR_LENGTH);
+      snprintf(buffer, size, "%s", buf);
     }
     res = true;
   }
@@ -133,58 +172,74 @@ bool ObAddr::ip_to_string(char *buffer, const int32_t size) const
 int ObAddr::ip_port_to_string(char *buffer, const int32_t size) const
 {
   int ret = OB_SUCCESS;
+  int ret_len = 0;
   if (NULL == buffer || size <= 0) {
     ret = OB_INVALID_ARGUMENT;
   } else if (version_ == IPV6) {
-    ret = OB_NOT_SUPPORTED;
+    char buf[MAX_IP_ADDR_LENGTH];
+    struct in6_addr in6;
+    memset(buf, 0, sizeof(buf));
+    MEMCPY(in6.s6_addr, ip_.v6_, sizeof(ip_.v6_));
+    inet_ntop(AF_INET6, &in6, buf, MAX_IP_ADDR_LENGTH);
+    ret_len = snprintf(buffer, size, "[%s]:%d", buf, port_);
   } else {
-    int ret_len = snprintf(buffer, size, "%d.%d.%d.%d:%d",
+    ret_len = snprintf(buffer, size, "%d.%d.%d.%d:%d",
                            (ip_.v4_ >> 24) & 0XFF,
                            (ip_.v4_ >> 16) & 0xFF,
                            (ip_.v4_ >> 8) & 0xFF,
                            (ip_.v4_) & 0xFF,
                            port_);
-    if (ret_len < 0) {
-      ret = OB_ERR_SYS;
-    } else if (ret_len >= size) {
-      ret = OB_SIZE_OVERFLOW;
-    }
+  }
+
+  if (ret_len < 0) {
+    ret = OB_ERR_SYS;
+  } else if (ret_len >= size) {
+    ret = OB_SIZE_OVERFLOW;
   }
   return ret;
 }
 
 bool ObAddr::set_ipv6_addr(const char *ip, const int32_t port)
 {
-  UNUSED(ip);
-  UNUSED(port);
-  _OB_LOG(WARN, "set ipv6 address is not complete");
-  return false;
-}
+  bool bret = true;
+  int ret = OB_SUCCESS;
+  if (NULL == ip || port < 0) {
+    bret = false;
+  } else if (OB_FAIL(convert_ipv6_addr(ip))) {
+    bret = false;
+  } else {
+    version_ = IPV6;
+    port_ = port;
+  }
 
+  return bret;
+}
 
 bool ObAddr::set_ipv4_addr(const char *ip, const int32_t port)
 {
-  bool ret = true;
-  if (NULL == ip || port <= 0) {
-    ret = false;
+  bool bret = true;
+  int ret = OB_SUCCESS;
+  if (NULL == ip || port < 0) {
+    bret = false;
+  } else if (OB_FAIL(convert_ipv4_addr(ip))) {
+    bret = false;
   } else {
     version_ = IPV4;
-    ip_.v4_ = convert_ipv4_addr(ip);
     port_ = port;
   }
-  return ret;
+  return bret;
 }
 
-bool ObAddr::set_ipv4_addr(const ObString &ip, const int32_t port)
+bool ObAddr::set_ip_addr(const ObString &ip, const int32_t port)
 {
   bool ret = true;
-  char ip_buf[OB_IP_STR_BUFF] = "";
-  if (ip.length() >= OB_IP_STR_BUFF) {
+  char ip_buf[MAX_IP_ADDR_LENGTH] = "";
+  if (ip.length() >= MAX_IP_ADDR_LENGTH) {
     ret = false;
   } else {
     // ObString may be not terminated by '\0'
     MEMCPY(ip_buf, ip.ptr(), ip.length());
-    ret = set_ipv4_addr(ip_buf, port);
+    ret = set_ip_addr(ip_buf, port);
   }
   return ret;
 }
@@ -194,8 +249,12 @@ bool ObAddr::is_valid() const
   bool valid = true;
   if (port_ <= 0) {
     valid = false;
+  } else if (IPV4 == version_) {
+    valid = (0 != ip_.v4_);
+  } else if (IPV6 == version_) {
+    valid = ((0 != ip_.v6_[0]) || (0 != ip_.v6_[1]) || (0 != ip_.v6_[2]) || (0 != ip_.v6_[3]));
   } else {
-    valid = (IPV4 == version_) && (0 != ip_.v4_);
+    valid = false;
   }
   return valid;
 }
@@ -235,10 +294,17 @@ void ObAddr::set_ipv4_server_id(const int64_t ipv4_server_id)
 
 bool ObAddr::operator <(const ObAddr &rv) const
 {
-  if ((version_ != rv.version_) || (IPV4 != version_)) {
+  int64_t ipcmp = 0;
+  if (version_ != rv.version_) {
     LOG_ERROR("comparision between different IP versions hasn't supported!");
+  } else if (IPV4 == version_) {
+    ipcmp = static_cast<int64_t>(ip_.v4_) - static_cast<int64_t>(rv.ip_.v4_);
+  } else if (IPV6 == version_) {
+    int pos = 0;
+    for (; ipcmp == 0 && pos < IPV6_LEN; pos++) {
+      ipcmp = ip_.v6_[pos] - rv.ip_.v6_[pos];
+    }
   }
-  int ipcmp = ip_.v4_ - rv.ip_.v4_;
   return (ipcmp < 0) || (0 == ipcmp && port_ < rv.port_);
 }
 
@@ -271,6 +337,68 @@ void ObAddr::set_port(int32_t port)
   port_ = port;
 }
 
+struct sockaddr_storage ObAddr::get_sockaddr() const
+{
+  struct sockaddr_storage sock_addr;
+  memset(&sock_addr, 0, sizeof(struct sockaddr_storage));
+  if (version_ == IPV4) {
+    struct sockaddr_in in;
+    memset(&in, 0, sizeof(struct sockaddr_in));
+    in.sin_family = AF_INET;
+    in.sin_port = (htons)(static_cast<uint16_t>(port_));
+    in.sin_addr.s_addr = htonl(ip_.v4_);
+    MEMCPY(&sock_addr, &in, sizeof(in));
+  } else if (version_ == IPV6) {
+    struct sockaddr_in6 in6;
+    memset(&in6, 0, sizeof(struct sockaddr_in6));
+    in6.sin6_family = AF_INET6;
+    in6.sin6_port = (htons)(static_cast<uint16_t>(port_));
+    MEMCPY(in6.sin6_addr.s6_addr, ip_.v6_, sizeof(ip_.v6_));
+    MEMCPY(&sock_addr, &in6, sizeof(in6));
+  }
+
+  return sock_addr;
+}
+
+void ObAddr::set_sockaddr(const struct sockaddr &sock_addr)
+{
+  if (sock_addr.sa_family == AF_INET) {
+    version_ = IPV4;
+    const struct sockaddr_in &in = (struct sockaddr_in&)(sock_addr);
+    port_ = ntohs(in.sin_port);
+    ip_.v4_ = ntohl(in.sin_addr.s_addr);
+  } else if (sock_addr.sa_family == AF_INET6) {
+    version_ = IPV6;
+    const struct sockaddr_in6 &in6 = (struct sockaddr_in6&)(sock_addr);
+    port_ = ntohs(in6.sin6_port);
+    MEMCPY(ip_.v6_, in6.sin6_addr.s6_addr, sizeof(ip_.v6_));
+  }
+}
+
+bool ObAddr::set_ip_addr(const char *ip, const int32_t port)
+{
+  bool bret = false;
+  const char *ch = strchr(ip, ':');
+  if (NULL != ch) {
+    bret = set_ipv6_addr(ip, port);
+  } else {
+    bret = set_ipv4_addr(ip, port);
+  }
+  return bret;
+}
+
+bool ObAddr::set_ipv6_addr(const uint64_t ipv6_high, const uint64_t ipv6_low, const int32_t port)
+{
+  bool ret = true;
+  uint64_t *high = reinterpret_cast<uint64_t *>(&ip_.v6_[0]);
+  uint64_t *low = reinterpret_cast<uint64_t *>(&ip_.v6_[8]);
+  *high = ipv6_high;
+  *low = ipv6_low;
+  version_ = IPV6;
+  port_= port;
+  return ret;
+}
+
 OB_SERIALIZE_MEMBER(ObAddr, version_, ip_.v6_[0], ip_.v6_[1], ip_.v6_[2], ip_.v6_[3], port_);
 
 } // end namespace common
diff --git a/src/lib/net/ob_addr.h b/src/lib/net/ob_addr.h
index 9b9d0096..21383a88 100644
--- a/src/lib/net/ob_addr.h
+++ b/src/lib/net/ob_addr.h
@@ -19,28 +19,33 @@
 #include "lib/container/ob_se_array.h"
 #include "lib/json/ob_yson.h"
 #include "lib/ob_name_id_def.h"
+#include "iocore/net/ob_inet.h"
 namespace oceanbase
 {
 namespace common
 {
 
+#define IPV6_LEN 16
+
 class ObAddr
 {
   OB_UNIS_VERSION(1);
 
 public:
   enum VER {
-    IPV4 = 4, IPV6 = 6
+    IPV4 = 4,
+    IPV6 = 6,
+    IPINVALID,
   };
 
   ObAddr()
-      : version_(IPV4), ip_(), port_(0)
+      : version_(IPINVALID), ip_(), port_(0)
   {
     memset(&ip_, 0, sizeof(ip_));
   }
 
   ObAddr(VER version, const char *ip, const int32_t port)
-      : version_(IPV4), ip_(), port_(0)
+      : version_(IPINVALID), ip_(), port_(0)
   {
     memset(&ip_, 0, sizeof(ip_));
     if (version == IPV4) {
@@ -50,15 +55,20 @@ class ObAddr
     }
   }
 
+  // The server_id format cannot be used in the case of IPV6
+  // TODO: Consider removing it
   explicit ObAddr(const int64_t ipv4_server_id)
-      : version_(IPV4), ip_(), port_(0)
+      : version_(IPINVALID), ip_(), port_(0)
   {
+    // server_id only supports IPV4 format
+    version_ = IPV4;
     ip_.v4_  = static_cast<int32_t>(0x00000000ffffffff & (ipv4_server_id >> 32));
     port_ = static_cast<int32_t>(0x00000000ffffffff & ipv4_server_id);
   }
 
   void reset()
   {
+    version_ = IPINVALID;
     port_ = 0;
     memset(&ip_, 0, sizeof (ip_));
   }
@@ -68,7 +78,10 @@ class ObAddr
     return (IPV4 == version_ && INADDR_LOOPBACK == ip_.v4_)
            || (IPV6 == version_ && IN6_IS_ADDR_LOOPBACK(ip_.v6_));
   }
-  static uint32_t convert_ipv4_addr(const char *ip);
+  int convert_ipv4_addr(const char *ip);
+  int convert_ipv6_addr(const char *ip);
+  struct sockaddr_storage get_sockaddr() const;
+  void set_sockaddr(const struct sockaddr &sock_addr);
 
   int64_t to_string(char *buffer, const int64_t size) const;
   bool ip_to_string(char *buffer, const int32_t size) const;
@@ -76,10 +89,12 @@ class ObAddr
   TO_YSON_KV(ID(ip), ip_.v4_,
              ID(port), port_);
 
+  bool set_ip_addr(const char *ip, const int32_t port);
+  bool set_ip_addr(const ObString &ip, const int32_t port);
   bool set_ipv6_addr(const char *ip, const int32_t port);
+  bool set_ipv6_addr(const uint64_t ipv6_high, const uint64_t ipv6_low, const int32_t port);
   bool set_ipv4_addr(const char *ip, const int32_t port);
   bool set_ipv4_addr(const uint32_t ip, const int32_t port);
-  bool set_ipv4_addr(const ObString &ip, const int32_t port);
 
   int parse_from_cstring(const char *ip_str);
   int64_t get_ipv4_server_id() const;
@@ -89,6 +104,7 @@ class ObAddr
   bool operator !=(const ObAddr &rv) const;
   bool operator ==(const ObAddr &rv) const;
   bool operator < (const ObAddr &rv) const;
+  ObAddr& operator = (const ObAddr &rv);
   int compare(const ObAddr &rv) const;
   bool is_equal_except_port(const ObAddr &rv) const;
   inline int32_t get_version() const { return version_; }
@@ -106,6 +122,8 @@ class ObAddr
   VER version_;
   union
   {
+    // v4 addresses are stored in native byte order,
+    // v6 addresses are stored in network byte order
     uint32_t v4_; //host byte order
     uint32_t v6_[4];
   } ip_;
@@ -139,6 +157,16 @@ bool ObAddr::operator ==(const ObAddr &rv) const
          && ip_.v6_[2] == rv.ip_.v6_[2] && ip_.v6_[3] == rv.ip_.v6_[3];
 }
 
+ObAddr& ObAddr::operator =(const ObAddr &rv)
+{
+  if (this != &rv) {
+    version_ = rv.version_;
+    port_ = rv.port_;
+    MEMCPY(ip_.v6_, rv.ip_.v6_, sizeof(ip_.v6_));
+  }
+  return *this;
+}
+
 int ObAddr::compare(const ObAddr &rv) const
 {
   return memcmp(this, &rv, sizeof(ObAddr));
diff --git a/src/lib/ob_define.h b/src/lib/ob_define.h
index 968ee82f..e80ff17f 100644
--- a/src/lib/ob_define.h
+++ b/src/lib/ob_define.h
@@ -53,7 +53,7 @@ const int64_t OB_MAX_CLUSTER_ID                                = 4294901759;
 const int64_t OB_INVALID_CLUSTER_ID                            = -1;
 const int64_t OB_INVALID_ORG_CLUSTER_ID                        = 0;
 const int64_t OB_MAX_ITERATOR                                  = 16;
-const int64_t MAX_IP_ADDR_LENGTH                               = 32;
+const int64_t MAX_IP_ADDR_LENGTH                               = 64;
 const int64_t MAX_IP_PORT_LENGTH                               = MAX_IP_ADDR_LENGTH + 5;
 const int64_t MAX_IP_PORT_SQL_LENGTH                           = MAX_IP_ADDR_LENGTH + 10;
 const int64_t OB_MAX_SQL_ID_LENGTH                             = 32;
@@ -178,7 +178,6 @@ const int64_t OB_MAX_BATCH_NUMBER                              = 100;
 const int64_t OB_MAX_TABLET_LIST_NUMBER                        = 64;
 const int64_t OB_MAX_DISK_NUMBER                               = 16; // must no more than ObTimer::MAX_TASK_NUM
 const int64_t OB_MAX_TIME_STR_LENGTH                           = 64;
-const int64_t OB_IP_STR_BUFF                                   = 30; //TODO:  uniform IP/PORR length
 const int64_t OB_IP_PORT_STR_BUFF                              = 64;
 const int64_t OB_RANGE_STR_BUFSIZ                              = 512;
 const int64_t OB_MAX_FETCH_CMD_LENGTH                          = 2048;
@@ -573,6 +572,9 @@ static const char *const OB_MYSQL_CLIENT_JDBC_CLIENT_MODE = "__ob_jdbc_client";
 // for java client
 static const char *const OB_MYSQL_JAVA_CLIENT_MODE_NAME     = "__ob_java_client";
 
+// conn attr which transparent transit to observer
+static const char *const OB_MYSQL_OB_CLIENT = "__ob_client";
+
 // for obproxy and observer compatibility
 enum ObCapabilityFlagShift
 {
@@ -592,6 +594,7 @@ enum ObCapabilityFlagShift
   OB_CAP_PROXY_SESSION_SYNC_SHIFT,                  // 13
   OB_CAP_PROXY_FULL_LINK_TRACING_SHIFT,             // 14
   OB_CAP_PROXY_NEW_EXTRA_INFO_SHIFT,                // 15
+  OB_CAP_PROXY_SESSION_VAR_SYNC_SHIFT,              // 16
 };
 
 #define OB_TEST_CAPABILITY(cap, tg_cap) (((cap) & (tg_cap)) == (tg_cap))
@@ -610,6 +613,7 @@ enum ObCapabilityFlagShift
 #define OB_CAP_PROXY_SESSION_SYNC OB_CAP_GET_TYPE(common::OB_CAP_PROXY_SESSION_SYNC_SHIFT)
 #define OB_CAP_PROXY_FULL_LINK_TRACING OB_CAP_GET_TYPE(common::OB_CAP_PROXY_FULL_LINK_TRACING_SHIFT)
 #define OB_CAP_PROXY_NEW_EXTRA_INFO OB_CAP_GET_TYPE(common::OB_CAP_PROXY_NEW_EXTRA_INFO_SHIFT)
+#define OB_CAP_PROXY_SESSION_VAR_SYNC OB_CAP_GET_TYPE(common::OB_CAP_PROXY_SESSION_VAR_SYNC_SHIFT)
 
 
 // for obproxy debug
diff --git a/src/lib/ob_errno.cpp b/src/lib/ob_errno.cpp
index 1b1266da..9814f317 100644
--- a/src/lib/ob_errno.cpp
+++ b/src/lib/ob_errno.cpp
@@ -8,11 +8,6 @@
  * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
  * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
  * See the Mulan PubL v2 for more details.
- *
- * *************************************************************
- *
- * DO NOT EDIT. This file is automatically generated from `ob_errno.def'.
- *
  */
 
 #include "ob_errno.h"
@@ -2657,6 +2652,14 @@ static struct ObStrErrorInit
     SQLSTATE[-OB_TRANS_RPC_TIMEOUT] = "25000";
     STR_ERROR[-OB_TRANS_RPC_TIMEOUT] = "transaction rpc timeout";
     STR_USER_ERROR[-OB_TRANS_RPC_TIMEOUT] = "transaction rpc timeout";
+
+    // in transaction internal routing, if sql not supported to be executed on participant sent to participant
+    // server return OB_TRANS_FREE_ROUTE_NOT_SUPPORTED
+    // proxy downgrade transaction internal routing and send the rest of sql to coordinator
+    MYSQL_ERRNO[-OB_TRANS_FREE_ROUTE_NOT_SUPPORTED] = -1;
+    SQLSTATE[-OB_TRANS_FREE_ROUTE_NOT_SUPPORTED] = "HY000";
+    STR_ERROR[-OB_TRANS_FREE_ROUTE_NOT_SUPPORTED] = "Query is not supported to be executed on txn participant node";
+    STR_USER_ERROR[-OB_TRANS_FREE_ROUTE_NOT_SUPPORTED] = "Query is not supported to be executed on txn participant node";
     MYSQL_ERRNO[-OB_LOG_ID_NOT_FOUND] = -1;
     SQLSTATE[-OB_LOG_ID_NOT_FOUND] = "HY000";
     STR_ERROR[-OB_LOG_ID_NOT_FOUND] = "log id not found";
@@ -2883,8 +2886,8 @@ static struct ObStrErrorInit
     STR_USER_ERROR[-OB_ERR_NULL_DB_VAL_TESTLOAD_TABLE_MAP] = "Null database variable for testload table map to execute testload query";
     MYSQL_ERRNO[-OB_ERR_BATCH_INSERT_FOUND] = -1;
     SQLSTATE[-OB_ERR_BATCH_INSERT_FOUND] = "HY000";
-    STR_ERROR[-OB_ERR_BATCH_INSERT_FOUND] = "Batch insert is not supported for sharding table";
-    STR_USER_ERROR[-OB_ERR_BATCH_INSERT_FOUND] = "Batch insert is not supported for sharding table";
+    STR_ERROR[-OB_ERR_BATCH_INSERT_FOUND] = "Batch insert is not supported";
+    STR_USER_ERROR[-OB_ERR_BATCH_INSERT_FOUND] = "Batch insert is not supported";
     MYSQL_ERRNO[-OB_ERR_UNSUPPORT_DIFF_TOPOLOGY] = 7202;
     SQLSTATE[-OB_ERR_UNSUPPORT_DIFF_TOPOLOGY] = "HY000";
     STR_ERROR[-OB_ERR_UNSUPPORT_DIFF_TOPOLOGY] = "Not support different topology table join";
diff --git a/src/lib/ob_errno.h b/src/lib/ob_errno.h
index 39f10dbe..df603c1e 100644
--- a/src/lib/ob_errno.h
+++ b/src/lib/ob_errno.h
@@ -8,10 +8,6 @@
  * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
  * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
  * See the Mulan PubL v2 for more details.
- *
- * *************************************************************
- *
- * DO NOT EDIT. This file is automatically generated from `ob_errno.def'.
  */
 
 #ifndef OCEANBASE_LIB_OB_ERRNO_H_
@@ -23,6 +19,7 @@ namespace oceanbase
 {
 namespace common
 {
+  static const int OB_INTERNAL_ERROR = -600;
   static const int OB_ORA_FATAL_ERROR = -603;
   static const int64_t OB_MAX_ERROR_CODE = 10000;
   static const int OB_LAST_ERROR_CODE = -8003;
@@ -704,6 +701,7 @@ namespace common
   static const int OB_PARTITION_IS_STOPPED = -6228;
   static const int OB_PARTITION_IS_BLOCKED = -6229;
   static const int OB_TRANS_RPC_TIMEOUT = -6230;
+  static const int OB_TRANS_FREE_ROUTE_NOT_SUPPORTED = -6279;
   static const int OB_LOG_ID_NOT_FOUND = -6301;
   static const int OB_LSR_THREAD_STOPPED = -6302;
   static const int OB_NO_LOG = -6303;
@@ -1425,6 +1423,7 @@ namespace common
 #define OB_PARTITION_IS_STOPPED__USER_ERROR_MSG "Partition has been stopped"
 #define OB_PARTITION_IS_BLOCKED__USER_ERROR_MSG "Partition has been blocked"
 #define OB_TRANS_RPC_TIMEOUT__USER_ERROR_MSG "transaction rpc timeout"
+#define OB_TRANS_FREE_ROUTE_NOT_SUPPORTED__USER_ERROR_MSG "Query is not supported to be executed on txn participant node"
 #define OB_LOG_ID_NOT_FOUND__USER_ERROR_MSG "log id not found"
 #define OB_LSR_THREAD_STOPPED__USER_ERROR_MSG "log scan runnable thread stop"
 #define OB_NO_LOG__USER_ERROR_MSG "no log ever scanned"
diff --git a/src/lib/ob_name_id_def.h b/src/lib/ob_name_id_def.h
index b9cb2d46..c77b060a 100644
--- a/src/lib/ob_name_id_def.h
+++ b/src/lib/ob_name_id_def.h
@@ -334,7 +334,8 @@ enum ObNameId
 };
 
 // get name at runtime
-const char* get_name(int32_t id);
+/* this function is defined for c driver client compile */
+inline const char* get_name(int32_t id) {((void)(id)); return nullptr;};
 const char* get_description(int32_t id);
 } // end namespace name_id_map
 } // end namespace oceanbase
diff --git a/src/lib/oblog/ob_async_log_struct.h b/src/lib/oblog/ob_async_log_struct.h
index c4ea05d5..79876ece 100644
--- a/src/lib/oblog/ob_async_log_struct.h
+++ b/src/lib/oblog/ob_async_log_struct.h
@@ -38,6 +38,7 @@ enum ObLogFDType {
   FD_POOL_FILE,
   FD_POOL_STAT_FILE,
   FD_TRACE_FILE,      // ob20 full link trace interface
+  FD_DRIVER_CLIENT_FILE,
   MAX_FD_FILE,
 };
 
diff --git a/src/lib/oblog/ob_log.cpp b/src/lib/oblog/ob_log.cpp
index 0b6928d5..2b9d7e08 100644
--- a/src/lib/oblog/ob_log.cpp
+++ b/src/lib/oblog/ob_log.cpp
@@ -375,7 +375,7 @@ ObLogger::~ObLogger()
   (void)pthread_mutex_destroy(&file_size_mutex_);
 }
 
-void ObLogger::destory_async_log_thread()
+void ObLogger::destroy_async_log_thread()
 {
   set_enable_async_log(false);
   set_stop_flush();
diff --git a/src/lib/oblog/ob_log.h b/src/lib/oblog/ob_log.h
index 26359f58..bab4572a 100644
--- a/src/lib/oblog/ob_log.h
+++ b/src/lib/oblog/ob_log.h
@@ -283,7 +283,7 @@ class ObLogger
 
 public:
   ~ObLogger();
-  void destory_async_log_thread();
+  void destroy_async_log_thread();
 
   int init_async_log_thread(const int64_t stacksize = 0);
   void destroy_free_litem_queue();
diff --git a/src/lib/oblog/ob_log_module.h b/src/lib/oblog/ob_log_module.h
index 5f836b2d..1f6249cf 100644
--- a/src/lib/oblog/ob_log_module.h
+++ b/src/lib/oblog/ob_log_module.h
@@ -261,6 +261,11 @@ LOG_MOD_END(STORAGETEST)
 #define _OBPROXY_TRACE_LOG(level, _fmt_, args...)                                               \
   (OB_MONITOR_LOG_NEED_TO_PRINT(level) ? _OB_PRINT_TYPE(FD_TRACE_FILE, NULL, level, _fmt_, ##args) : (void) 0)
 
+#define OBPROXY_DRIVER_CLIENT_LOG(level, infoString, args...)                                           \
+  (OB_LOG_NEED_TO_PRINT(level) ? OB_PRINT_TYPE(FD_DRIVER_CLIENT_FILE, NULL, level, infoString, ##args) : (void) 0)
+#define _OBPROXY_DRIVER_CLIENT_LOG(level, _fmt_, args...)                                               \
+  (OB_LOG_NEED_TO_PRINT(level) ? _OB_PRINT_TYPE(FD_DRIVER_CLIENT_FILE, NULL, level, _fmt_, ##args) : (void) 0)
+
 
 #define _OB_NUM_LEVEL_LOG(level, _fmt_, args...)                                                 \
   (OB_LOGGER.need_to_print(level) ?                                                              \
diff --git a/src/lib/oblog/ob_log_print_kv.h b/src/lib/oblog/ob_log_print_kv.h
index fedee40e..af937bd4 100644
--- a/src/lib/oblog/ob_log_print_kv.h
+++ b/src/lib/oblog/ob_log_print_kv.h
@@ -21,6 +21,7 @@
 #include "lib/utility/ob_macro_utils.h"
 #include "lib/utility/ob_template_utils.h"
 #include "lib/alloc/alloc_assist.h"
+#include "obproxy/ob_proxy_init.h"
 
 #define LOG_N_TRUE "true"
 #define LOG_N_FLASE "false"
@@ -37,8 +38,8 @@ int logdata_printf(char *buf, const int64_t buf_len, int64_t &pos, const char *f
 __attribute__((format(printf, 4, 5)));
 int logdata_vprintf(char *buf, const int64_t buf_len, int64_t &pos, const char *fmt, va_list args);
 
-#define LOG_STDERR(...) do {if(isatty(STDERR_FILENO)) {fprintf(stderr, __VA_ARGS__); }} while(0)
-#define LOG_STDOUT(...) do {if(isatty(STDOUT_FILENO)) {fprintf(stdout, __VA_ARGS__); }} while(0)
+#define LOG_STDERR(...) do { if(oceanbase::obproxy::RUN_MODE_PROXY == oceanbase::obproxy::g_run_mode && isatty(STDERR_FILENO)) {fprintf(stderr, __VA_ARGS__); }} while(0)
+#define LOG_STDOUT(...) do {if(oceanbase::obproxy::RUN_MODE_PROXY == oceanbase::obproxy::g_run_mode && isatty(STDOUT_FILENO)) {fprintf(stdout, __VA_ARGS__); }} while(0)
 
 //print errmsg of errno.As strerror not thread-safe, need
 //to call ERRMSG, KERRMSG which use this class.
@@ -370,6 +371,46 @@ int logdata_print_kv(char *buf, const int64_t buf_len, int64_t &pos, const char
   return logdata_print_key_obj(buf, buf_len, pos, key, false, obj);
 }
 
+class ObILogKV
+{
+public:
+  virtual int print(char *buf, int64_t buf_len, int64_t &pos, const bool with_comma) const = 0;
+};
+
+template<typename T,  const bool is_rvalue>
+class ObLogKV;
+
+template<typename T>
+class ObLogKV<T, false> : public ObILogKV
+{
+public:
+  ObLogKV(const char *key, const T &value) : key_(key), value_(value) {}
+  int print(char *buf, int64_t buf_len, int64_t &pos, const bool with_comma) const override
+  {
+    return logdata_print_key_obj(buf, buf_len, pos, key_,
+                                 with_comma, value_);
+  }
+private:
+  const char *key_;
+  const T &value_;
+};
+
+template<typename T> T& unmove(T&& v) { return v; }
+
+template<typename T>
+class ObLogKV<T, true> : public ObILogKV
+{
+public:
+  ObLogKV(const char *key, const T &&value) : key_(key), value_(unmove(value)) {}
+  int print(char *buf, int64_t buf_len, int64_t &pos, const bool with_comma) const override
+  {
+    return logdata_print_key_obj(buf, buf_len, pos, key_,
+                                 with_comma, value_);
+  }
+private:
+  const char *key_;
+  const T &value_;
+};
 
 }
 }
@@ -679,4 +720,35 @@ int logdata_print_kv(char *buf, const int64_t buf_len, int64_t &pos, const char
     log_buffer.check_and_unlock();                                                          \
   }
 
+#define LOG_KV(key, obj) \
+  (::oceanbase::common::ObILogKV&&)::oceanbase::common::ObLogKV<decltype(obj), \
+  std::is_rvalue_reference<decltype((obj))&&>::value>(key, obj)
+#define LOG_KVS_0()
+#define LOG_KVS_1()
+#define LOG_KVS_2(key, obj)           , LOG_KV(key, obj)
+#define LOG_KVS_4(key, obj, args...)  , LOG_KV(key, obj) LOG_KVS_2(args)
+#define LOG_KVS_6(key, obj, args...)  , LOG_KV(key, obj) LOG_KVS_4(args)
+#define LOG_KVS_8(key, obj, args...)  , LOG_KV(key, obj) LOG_KVS_6(args)
+#define LOG_KVS_10(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_8(args)
+#define LOG_KVS_12(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_10(args)
+#define LOG_KVS_14(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_12(args)
+#define LOG_KVS_16(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_14(args)
+#define LOG_KVS_18(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_16(args)
+#define LOG_KVS_20(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_18(args)
+#define LOG_KVS_22(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_20(args)
+#define LOG_KVS_24(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_22(args)
+#define LOG_KVS_26(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_24(args)
+#define LOG_KVS_28(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_26(args)
+#define LOG_KVS_30(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_28(args)
+#define LOG_KVS_32(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_30(args)
+#define LOG_KVS_34(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_32(args)
+#define LOG_KVS_36(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_34(args)
+#define LOG_KVS_38(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_36(args)
+#define LOG_KVS_40(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_38(args)
+#define LOG_KVS_42(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_40(args)
+#define LOG_KVS_44(key, obj, args...) , LOG_KV(key, obj) LOG_KVS_42(args)
+
+#define LOG_KVS_(N, ...) CONCAT(LOG_KVS_, N)(__VA_ARGS__)
+#define LOG_KVS(...) "placeholder" LOG_KVS_(ARGS_NUM(__VA_ARGS__), __VA_ARGS__)
+
 #endif
diff --git a/src/lib/oblog/ob_simple_trace.h b/src/lib/oblog/ob_simple_trace.h
new file mode 100644
index 00000000..bd960bc9
--- /dev/null
+++ b/src/lib/oblog/ob_simple_trace.h
@@ -0,0 +1,190 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#ifndef _OB_SIMPLE_TRACE_H
+#define _OB_SIMPLE_TRACE_H
+
+#include "lib/oblog/ob_log.h"
+
+namespace oceanbase
+{
+namespace common
+{
+
+template<int64_t BUFFER_SIZE>
+class ObSimpleTraceBase
+{
+public:
+  ObSimpleTraceBase() { reset(); }
+  ~ObSimpleTraceBase() { }
+  void reset()
+  {
+    pos_ = 0;
+    buf_[0] = '\0';
+  }
+  template <typename ... Args>
+  int log_it(const char *info, Args const & ... args)
+  {
+    int ret = common::OB_SUCCESS;
+    const int64_t saved_pos = pos_;
+    const char delimiter1[] = " | ";
+    const char delimiter2[] = "... | ";
+    if (OB_FAIL(fill_buffer(buf_, BUFFER_SIZE - sizeof(delimiter2), pos_, info, args...))) {
+      if ((BUFFER_SIZE - saved_pos) >= BUFFER_SIZE / 2) {
+        // rewrite ret
+        ret = OB_SUCCESS;
+        (void)databuff_printf(buf_, BUFFER_SIZE, pos_, delimiter2);
+      }
+    } else {
+      (void)databuff_printf(buf_, BUFFER_SIZE, pos_, delimiter1);
+    }
+    if (OB_FAIL(ret)) {
+      pos_ = saved_pos;
+      buf_[pos_] = '\0';
+    }
+    return ret;
+  }
+  int64_t to_string(char *buf, const int64_t buf_len) const
+  {
+    int64_t pos = 0;
+    databuff_printf(buf, buf_len, pos, "%s", buf_);
+    return pos;
+  }
+private:
+  int fill_kv(char *buf, const int64_t buf_len, int64_t &pos,
+              const bool with_comma)
+  {
+    UNUSED(buf);
+    UNUSED(buf_len);
+    UNUSED(pos);
+    UNUSED(with_comma);
+    return common::OB_SUCCESS;
+  }
+
+  int fill_kv(char *buf, const int64_t buf_len, int64_t &pos,
+              const bool with_comma,
+              const ObILogKV &kv)
+  {
+    return kv.print(buf, buf_len, pos, with_comma);
+  }
+
+  template <typename Key, typename Value, typename ... Args>
+  int fill_kv(char *buf, const int64_t buf_len, int64_t &pos,
+              const bool with_comma,
+              const Key &key,
+              const Value &value,
+              Args const & ... args)
+  {
+    int ret = OB_SUCCESS;
+    ret = fill_kv(buf, buf_len, pos, with_comma, LOG_KV(key, value));
+    if (OB_SUCC(ret)) {
+      ret = fill_kv(buf, buf_len, pos, 1, args...);
+    }
+    return ret;
+  }
+  template <typename ... Args>
+  int fill_buffer(char *data, const int64_t buf_len,
+                  int64_t &pos,
+                  const char *info,
+                  Args const & ... args)
+  {
+    int ret = OB_SUCCESS;
+    int64_t tmp_pos = pos;
+    ret = databuff_printf(data, buf_len, pos, "%s ", info);
+    if (OB_SUCC(ret)) {
+      ret = fill_kv(data, buf_len, pos, 0, args...);
+    }
+    if (OB_SUCC(ret) && OB_UNLIKELY(OB_LOGGER.get_log_level() >= OB_LOG_LEVEL_TRACE)) {
+      char tmp_buf[1024];
+      memset(tmp_buf, 0, sizeof(tmp_buf));
+      int64_t copy_len = pos - tmp_pos > 1023 ? 1023 : pos - tmp_pos; 
+      MEMCPY(tmp_buf, data + tmp_pos, copy_len);
+      OB_LOG(TRACE, "trace_log", K(tmp_buf));
+    }
+    return ret;
+  }
+private:
+  char buf_[BUFFER_SIZE];
+  int64_t pos_;
+};
+
+template<int64_t TRACE_SIZE>
+class ObSimpleTrace
+{
+public:
+  ObSimpleTrace() { reset(); }
+  ~ObSimpleTrace() { }
+  void reset()
+  {
+    first_idx_ = 0;
+    cur_idx_ = 0;
+    need_print_ = false;
+    for (int64_t i = 0; i < BASE_TRACE_CNT; i++) {
+      traces_[i].reset();
+    }
+  }
+  template <typename ... Args>
+  void log_it(const char *info, Args const & ... args)
+  {
+    if (need_print_) {
+      int ret = common::OB_SUCCESS;
+      for (int64_t i = 0; i < 2; i++) {
+        cur_idx_ = (cur_idx_ + i) % BASE_TRACE_CNT;
+        if (1 == i) {
+          if (cur_idx_ == first_idx_) {
+            if (OB_UNLIKELY(OB_LOGGER.get_log_level() >= OB_LOG_LEVEL_TRACE)) {
+              // _LOG(TRACE, "print_trace_log", K(*this));
+            } else {
+              first_idx_ = (first_idx_ + 1) % BASE_TRACE_CNT;
+            }
+          }
+          traces_[cur_idx_].reset();
+        }
+        if (OB_SUCC(traces_[cur_idx_].log_it(info, args...))) {
+          break;
+        }
+      }
+      (void)ret;
+    }
+  }
+  int64_t to_string(char *buf, const int64_t buf_len) const
+  {
+    int64_t pos = 0;
+    for (int64_t i = 0; i < BASE_TRACE_CNT; i++) {
+      if (pos < buf_len) {
+        const int64_t idx = (first_idx_ + i) % BASE_TRACE_CNT;
+        const int64_t size = traces_[idx].to_string(buf + pos, buf_len - pos);
+        pos = pos + size;
+        if (idx == cur_idx_) {
+          break;
+        }
+      } else {
+        break;
+      }
+    }
+    return pos;
+  }
+  void set_need_print(const bool &need_print) { need_print_ = need_print; }
+private:
+  static const int64_t BASE_TRACE_CNT = 4;
+  static const int64_t BUFFER_SIZE = TRACE_SIZE / BASE_TRACE_CNT;
+private:
+  ObSimpleTraceBase<BUFFER_SIZE> traces_[BASE_TRACE_CNT];
+  int64_t first_idx_;
+  int64_t cur_idx_;
+  bool need_print_;
+};
+
+} // end namespace common
+} // end namespace oceanbase
+
+#endif /* _OB_TRACE_EVENT_H */
diff --git a/src/lib/profile/ob_trace_id.h b/src/lib/profile/ob_trace_id.h
index c1e56cbc..80b620ed 100644
--- a/src/lib/profile/ob_trace_id.h
+++ b/src/lib/profile/ob_trace_id.h
@@ -37,6 +37,7 @@ struct ObCurTraceId
     inline bool is_invalid() { return id_.seq_ == 0 ? true : false; }
     inline void init(const ObAddr &ip_port)
     {
+      // TODO: Consider whether to support IPv6
       id_.seq_ = ATOMIC_AAF(&(SeqGenerator::seq_generator_), 1);
       id_.ip_ = ip_port.get_ipv4();
       id_.reserved_ = 0;
@@ -114,6 +115,8 @@ struct ObCurTraceId
   }
 };
 
+uint64_t ObCurTraceId::SeqGenerator::seq_generator_ = 0;
+
 int32_t LogExtraHeaderCallback(char *buf, int32_t buf_size,
                                int level, const char *file,
                                int line, const char *function, pthread_t tid);
diff --git a/src/lib/rowid/ob_urowid.cpp b/src/lib/rowid/ob_urowid.cpp
index 8aba8730..c114edf7 100644
--- a/src/lib/rowid/ob_urowid.cpp
+++ b/src/lib/rowid/ob_urowid.cpp
@@ -135,7 +135,8 @@ int ObURowIDData::inner_get_pk_value<ObURowIDType>(const uint8_t *rowid_buf,
           *(reinterpret_cast<const ObNumberDesc *>(rowid_buf + pos));          \
       pos += sizeof(ObNumberDesc);                                             \
       int64_t digits_len = sizeof(uint32_t) * num_desc.len_;                   \
-      if (OB_LIKELY(pos + digits_len <= rowid_buf_len)) {                      \
+      if (OB_LIKELY(0 <= digits_len && digits_len <= rowid_buf_len             \
+          && pos + digits_len <= rowid_buf_len)) {                             \
         const uint32_t *digits = reinterpret_cast<const uint32_t *>(rowid_buf + pos); \
         pos += digits_len;                                                     \
         pk_val.set_##type(num_desc, const_cast<uint32_t *>(digits));           \
@@ -161,7 +162,7 @@ int ObURowIDData::inner_get_pk_value<ObURowIDType>(const uint8_t *rowid_buf,
       int32_t char_len =                                                       \
           *(reinterpret_cast<const int32_t *>(rowid_buf + pos));               \
       pos += 4;                                                                \
-      if (OB_LIKELY(pos + char_len <= rowid_buf_len)) {                        \
+      if (OB_LIKELY(0 <= char_len && pos + char_len <= rowid_buf_len)) {       \
         const char *str_val = (const char *)rowid_buf + pos;                   \
         pos += char_len;                                                       \
         ObString str_value(char_len, str_val);                                 \
@@ -208,19 +209,19 @@ DEF_GET_POD_PK_VALUE(ObIntType, int, int64_t);
 DEF_GET_POD_PK_VALUE(ObFloatType, float, float);
 DEF_GET_POD_PK_VALUE(ObDoubleType, double, double);
 DEF_GET_POD_PK_VALUE(ObDateTimeType, datetime, int64_t);
-// DEF_GET_POD_PK_VALUE(ObIntervalYMType, interval_ym, int64_t);
+//DEF_GET_POD_PK_VALUE(ObIntervalYMType, interval_ym, int64_t);
 
 DEF_GET_NUMBER_PK_VALUE(ObNumberType, number);
 DEF_GET_NUMBER_PK_VALUE(ObNumberFloatType, number_float);
 
 DEF_GET_CHAR_PK_VALUE(ObVarcharType, varchar);
 DEF_GET_CHAR_PK_VALUE(ObCharType, char);
-// DEF_GET_CHAR_PK_VALUE(ObNVarchar2Type, nvarchar2);
-// DEF_GET_CHAR_PK_VALUE(ObNCharType, nchar);
+DEF_GET_CHAR_PK_VALUE(ObNVarchar2Type, nvarchar2);
+DEF_GET_CHAR_PK_VALUE(ObNCharType, nchar);
 
-// DEF_GET_OTIME_PK_VALUE(ObTimestampTZType, timestamp_tz, uint32_t);
-// DEF_GET_OTIME_PK_VALUE(ObTimestampLTZType, timestamp_ltz, uint16_t);
-// DEF_GET_OTIME_PK_VALUE(ObTimestampNanoType, timestamp_nano, uint16_t);
+DEF_GET_OTIME_PK_VALUE(ObTimestampTZType, timestamp_tz, uint32_t);
+DEF_GET_OTIME_PK_VALUE(ObTimestampLTZType, timestamp_ltz, uint16_t);
+DEF_GET_OTIME_PK_VALUE(ObTimestampNanoType, timestamp_nano, uint16_t);
 
 #define ALL_TYPES_USED_IN_INNER_FUNC \
   ObNullType,                        \
@@ -937,7 +938,8 @@ int ObURowIDData::get_rowkey_for_heap_organized_table(ObIArray<ObObj> &rowkey)
 
 int ObURowIDData::get_obobj_or_partition_id_from_decoded(obproxy::proxy::ObProxyPartInfo &part_info,
                                                          obproxy::opsql::ObExprResolverResult &resolve_result,
-                                                         int64_t &partition_id)
+                                                         int64_t &partition_id,
+                                                         common::ObIAllocator &allocator)
 {
   int ret = OB_SUCCESS;
 
@@ -970,7 +972,7 @@ int ObURowIDData::get_obobj_or_partition_id_from_decoded(obproxy::proxy::ObProxy
     case NO_PK_ROWID_VERSION:
     case PK_ROWID_VERSION: {
       // ob2.x 3.x
-      if (OB_FAIL(get_obobj_from_decoded(part_info, resolve_result))) {
+      if (OB_FAIL(get_obobj_from_decoded(part_info, resolve_result, allocator))) {
         COMMON_LOG(WARN, "fail to get obobj from decoded", K(ret));
       }
       break;
@@ -986,7 +988,8 @@ int ObURowIDData::get_obobj_or_partition_id_from_decoded(obproxy::proxy::ObProxy
 
 // used for ob2.x 3.x
 int ObURowIDData::get_obobj_from_decoded(obproxy::proxy::ObProxyPartInfo &part_info,
-                                         obproxy::opsql::ObExprResolverResult &resolve_result)
+                                         obproxy::opsql::ObExprResolverResult &resolve_result,
+                                         common::ObIAllocator &allocator)
 {
   int ret = OB_SUCCESS;
 
@@ -995,43 +998,55 @@ int ObURowIDData::get_obobj_from_decoded(obproxy::proxy::ObProxyPartInfo &part_i
     COMMON_LOG(WARN, "fail to get pk vals", K(ret));
   } else {
     ObProxyPartKeyInfo &key_info = part_info.get_part_key_info();
-    bool set_level_one_obj = false;
-    bool set_level_two_obj = false;
 
     for (int64_t i = 0; OB_SUCC(ret) && i < key_info.key_num_; ++i) {
       ObProxyPartKey &part_key = key_info.part_keys_[i];
-      int8_t idx = -1;
-      if ((part_key.level_ == PART_KEY_LEVEL_ONE || part_key.level_ == PART_KEY_LEVEL_BOTH)
-          && !set_level_one_obj) {
-        idx = 0;
-      } else if (part_key.level_ == PART_KEY_LEVEL_TWO
-                 && !set_level_two_obj) {
-        idx = 1;
+      if (PART_KEY_LEVEL_ONE == part_key.level_ && !resolve_result.ranges_[0].start_key_.is_valid()) {
+        if (OB_FAIL(resolve_result.ranges_[0].build_row_key(part_info.get_part_columns().count(), allocator))) {
+          COMMON_LOG(WARN, "fail to build row key", K(ret));
+        }
+      } else if (PART_KEY_LEVEL_TWO == part_key.level_ && !resolve_result.ranges_[1].start_key_.is_valid()) {
+        if (OB_FAIL(resolve_result.ranges_[1].build_row_key(part_info.get_sub_part_columns().count(), allocator))) {
+          COMMON_LOG(WARN, "fail to build row key", K(ret));
+        }
       }
 
-      if (idx != -1) {
-        if (part_key.idx_in_rowid_ >= 0
-            && part_key.idx_in_rowid_ < pk_vals.count()) {
-          ObObj &obj = pk_vals.at(part_key.idx_in_rowid_);
-          if (is_valid_obj_type(obj.get_type())) {
-            resolve_result.ranges_[idx].start_key_.assign(&obj, 1);
-            resolve_result.ranges_[idx].end_key_.assign(&obj, 1);
-            resolve_result.ranges_[idx].border_flag_.set_inclusive_start();
-            resolve_result.ranges_[idx].border_flag_.set_inclusive_end();
-            if (idx == 0) {
-              set_level_one_obj = true;
+      if (part_key.idx_in_rowid_ >= 0
+          && part_key.idx_in_rowid_ < pk_vals.count()) {
+        ObObj &obj = pk_vals.at(part_key.idx_in_rowid_);
+        ObObjType type = obj.get_type();
+        if (ObCharType == type || ObNCharType == type) {
+          int32_t val_len = obj.get_val_len();
+          const char* obj_str = obj.get_string_ptr();
+          while (val_len > 1) {
+            if (OB_PADDING_CHAR == *(obj_str + val_len - 1)) {
+              --val_len;
             } else {
-              set_level_two_obj = true;
+              break;
             }
-            COMMON_LOG(DEBUG, "succ to get obobj from rowid", K(idx), K(part_key.idx_in_rowid_), K(obj));
-          } else {
-            ret = OB_ERR_UNEXPECTED;
-            COMMON_LOG(WARN, "invalid obj type resolved from rowid content", K(ret), K(obj.get_type()));
           }
-        } else {
+          obj.set_string(type, obj.get_string_ptr(), val_len);
+        }
+
+        if (part_key.level_ == 0 || part_key.level_ > 2) {
           ret = OB_ERR_UNEXPECTED;
-          COMMON_LOG(WARN, "calc partition id using rowid failed", K(part_key.idx_in_rowid_), K(pk_vals.count()));
+          COMMON_LOG(WARN, "part key level unexpected", K(part_key.level_));
+        } else {
+          int level = static_cast<int>(part_key.level_ - 1);
+          ObObj *target_start = const_cast<ObObj*>(resolve_result.ranges_[level].start_key_.get_obj_ptr())
+                                + part_key.idx_in_part_columns_;
+          ObObj *target_end = const_cast<ObObj*>(resolve_result.ranges_[level].end_key_.get_obj_ptr())
+                              + part_key.idx_in_part_columns_;
+          // no need to deep copy
+          *target_start = obj;
+          *target_end = obj;
+          resolve_result.ranges_[level].border_flag_.set_inclusive_start();
+          resolve_result.ranges_[level].border_flag_.set_inclusive_end();
+          COMMON_LOG(DEBUG, "succ to get val from rowid", K(obj), K(level), K(part_key.idx_in_part_columns_));
         }
+      } else {
+        ret = OB_ERR_UNEXPECTED;
+        COMMON_LOG(WARN, "calc partition id using rowid failed", K(part_key.idx_in_rowid_), K(pk_vals.count()));
       }
     } // for
   } // else
diff --git a/src/lib/rowid/ob_urowid.h b/src/lib/rowid/ob_urowid.h
index 8599314f..6346e74f 100644
--- a/src/lib/rowid/ob_urowid.h
+++ b/src/lib/rowid/ob_urowid.h
@@ -154,7 +154,8 @@ friend class TestURowID;
   int get_rowkey_for_heap_organized_table(ObIArray<ObObj> &rowkey);
   int get_obobj_or_partition_id_from_decoded(obproxy::proxy::ObProxyPartInfo &part_info,
                                              obproxy::opsql::ObExprResolverResult &resolve_result,
-                                             int64_t &partition_id);
+                                             int64_t &partition_id,
+                                             common::ObIAllocator &allocator);
 
   // if highest bit is 1, lower 7 bits of version filed indicates how many primar key obj
   static bool is_valid_part_gen_col_version(int64_t v)
@@ -231,7 +232,8 @@ friend class TestURowID;
   int parse_ext_heap_organized_table_rowid(uint64_t &tablet_id, uint64_t &auto_inc);
 
   int get_obobj_from_decoded(obproxy::proxy::ObProxyPartInfo &part_info,
-                             obproxy::opsql::ObExprResolverResult &resolve_result);
+                             obproxy::opsql::ObExprResolverResult &resolve_result,
+                             common::ObIAllocator &allocator);
   
 };
 } // end namespace common
diff --git a/src/lib/timezone/ob_time_convert.cpp b/src/lib/timezone/ob_time_convert.cpp
index 8e92be2a..94cd069f 100644
--- a/src/lib/timezone/ob_time_convert.cpp
+++ b/src/lib/timezone/ob_time_convert.cpp
@@ -409,6 +409,32 @@ int ObTimeConverter::str_to_datetime(const ObString &str, const ObTimeZoneInfo *
   return ret;
 }
 
+/**
+ * @brief cast str to oracle date with format
+ *
+ * @param str input string of date
+ * @param cvrt_ctx
+ * @param value out param, oracle DATE result
+ * @return int
+ */
+int ObTimeConverter::str_to_date_oracle(const ObString &str,
+                                        const ObTimeConvertCtx &cvrt_ctx,
+                                        ObDateTime &value)
+{
+  int ret = OB_SUCCESS;
+  ObTime ob_time;
+  ObDateTime result_value = 0;
+  ObScale scale = 0;
+  if (OB_FAIL(str_to_ob_time_oracle_dfm(str, cvrt_ctx, ObDateTimeType, ob_time, scale))) {
+    LOG_WARN("failed to convert str to ob_time", K(str), K(cvrt_ctx.oracle_nls_format_));
+  } else if (OB_FAIL(ob_time_to_datetime(ob_time, cvrt_ctx.tz_info_, result_value))) {
+    LOG_WARN("convert ob_time to datetime failed", K(ret), K(ob_time));
+  } else {
+    value = result_value;
+  }
+  return ret;
+}
+
 int ObTimeConverter::str_to_datetime_format(const ObString &str, const ObString &fmt,
                                             const ObTimeZoneInfo *tz_info, int64_t &value, int16_t *scale)
 {
@@ -3111,7 +3137,7 @@ int ObTimeConverter::ob_time_to_str(const ObTime &ob_time, ObDTMode mode, int16_
 int ObTimeConverter::data_fmt_nd(char *buffer, int64_t buf_len, int64_t &pos, const int64_t n, int64_t target)
 {
   int ret = OB_SUCCESS;
-  if (OB_UNLIKELY(n <= 0 || target < 0 || target > 999999)) {
+  if (OB_UNLIKELY(n <= 0 || target < 0 || target > 999999999)) {
     ret = OB_ERR_UNEXPECTED;
     LIB_TIME_LOG(ERROR, "invalid argument", K(ret), K(n), K(target));
   } else if (OB_UNLIKELY(n > buf_len - pos)) {
@@ -3698,6 +3724,8 @@ int ObTimeConverter::ob_time_to_str_oracle_dfm(const ObTime &ob_time,
             break;
           }
           case ObDFMFlag::FF: {
+            // FF default FF9 in oracle
+            int64_t scale = ObDFMFlag::FF9 - ObDFMFlag::FF1 + 1;
             if (OB_UNLIKELY(!HAS_TYPE_ORACLE(ob_time.mode_))) {
               ret = OB_INVALID_DATE_FORMAT;
             } else if (0 == scale) {
diff --git a/src/lib/timezone/ob_time_convert.h b/src/lib/timezone/ob_time_convert.h
index e5e3a5b7..863a26ee 100644
--- a/src/lib/timezone/ob_time_convert.h
+++ b/src/lib/timezone/ob_time_convert.h
@@ -251,6 +251,7 @@ class ObTimeConverter
   static int int_to_time(int64_t int64, int64_t &value);
   static int int_to_year(int64_t int64, uint8_t &value);
   static int str_to_datetime(const ObString &str, const ObTimeZoneInfo *tz_info, int64_t &value, int16_t *scale = NULL);
+  static int str_to_date_oracle(const ObString &str, const ObTimeConvertCtx &cvrt_ctx, ObDateTime &value);
   static int str_to_datetime_format(const ObString &str, const ObString &fmt,
                                     const ObTimeZoneInfo *tz_info, int64_t &value, int16_t *scale = NULL);
   static int str_is_date_format(const ObString &str, bool &date_flag);
@@ -345,7 +346,7 @@ class ObTimeConverter
                             ObDTMode mode, int32_t &delta);
   static int ob_time_to_str_oracle_dfm(const ObTime &ob_time, ObScale scale, const ObString &format,
                                        char *buf, int64_t buf_len, int64_t &pos);
-  static int ob_time_to_datetime(ObTime &ob_time, const ObTimeZoneInfo *sp, int64_t &value);
+  static int ob_time_to_datetime(ObTime &ob_time, const ObTimeZoneInfo *tz_info, int64_t &value);
   static int32_t ob_time_to_date(ObTime &ob_time);
   static int ob_time_to_otimestamp(ObTime &ob_time, ObOTimestampData &value);
   static int64_t ob_time_to_time(const ObTime &ob_time);
diff --git a/src/lib/trace/ob_trace.cpp b/src/lib/trace/ob_trace.cpp
index 3ed4cafc..8c7a3cd1 100644
--- a/src/lib/trace/ob_trace.cpp
+++ b/src/lib/trace/ob_trace.cpp
@@ -439,6 +439,7 @@ ObSpanCtx* ObTrace::begin_span(uint32_t span_type, uint8_t level, bool is_follow
       new_span = freed_span_.remove_last();
       current_span_.add_first(new_span);
       new_span->span_type_ = static_cast<uint16_t>(span_type);
+      new_span->span_id_.high_ = 0;
       new_span->span_id_.low_ = ++seq_;
       new_span->source_span_ = last_active_span_;
       new_span->is_follow_ = is_follow;
@@ -565,4 +566,4 @@ void ObTrace::dump_span()
 }
 
 }
-}
\ No newline at end of file
+}
diff --git a/src/obproxy/Makemodule.am b/src/obproxy/Makemodule.am
index df2de637..4a08e92a 100644
--- a/src/obproxy/Makemodule.am
+++ b/src/obproxy/Makemodule.am
@@ -10,7 +10,11 @@ AM_CPPFLAGS += -I${top_srcdir}/src/obproxy\
 obproxy_libobproxy_la_LIBADD := dbconfig/libdbconfig.la lib/regex/regex/libregex.la prometheus/libprometheus_exporter.la
 noinst_LTLIBRARIES += obproxy/libobproxy.la
 
-bin_PROGRAMS += obproxy/obproxy
+if HAVE_SO
+    lib_LTLIBRARIES += obproxy/libobproxy_so.la
+else
+    bin_PROGRAMS += obproxy/obproxy
+endif
 
 include obproxy/iocore/eventsystem/Makemodule.am
 include obproxy/iocore/net/Makemodule.am
@@ -30,6 +34,7 @@ include obproxy/opsql/Makemodule.am
 include obproxy/packet/Makemodule.am
 include obproxy/dbconfig/Makemodule.am
 include obproxy/engine/Makemodule.am
+include obproxy/driver/c/Makemodule.am
 include obproxy/optimizer/Makemodule.am
 include obproxy/executor/Makemodule.am
 include obproxy/qos/Makemodule.am
@@ -41,6 +46,9 @@ pub_source =                            \
         obproxy/ob_proxy_main.cpp       \
         obproxy/ob_proxy.h              \
         obproxy/ob_proxy.cpp
+init_so_source =\
+         obproxy/ob_proxy_init.h\
+         obproxy/ob_proxy_init.cpp
 
 obproxy_sources :=\
 ${iocore_eventsystem_sources}\
@@ -51,6 +59,7 @@ ${proxy_api_sources}\
 ${proxy_plugins_sources}\
 ${proxy_mysqllib_sources}\
 ${proxy_mysql_client_sources}\
+${obproxy_c_driver_sources}\
 ${proxy_mysql_route_sources}\
 ${proxy_mysql_shard_sources}\
 ${obutils_sources}\
@@ -70,6 +79,8 @@ ${obproxy_executor_sources}\
 ${obproxy_optimizer_sources}\
 ${obproxy_engine_sources}\
 ${qos_sources}\
+${init_so_source}\
+${pub_source}\
 ${omt_sources}
 
 obproxy_libobproxy_la_SOURCES :=\
@@ -80,8 +91,15 @@ ${rpc_obmysql_packet_sources} ${obproxy_rpc_obmysql_sources} ${rpc_common_source
 ${obproxy_sql_sources}\
 ${obproxy_sources}
 
+if HAVE_SO
+  obproxy_libobproxy_so_la_SOURCES :=
+  obproxy_libobproxy_so_la_LIBADD := obproxy/libobproxy.la lib/compress/libzlib_1.0.la lib/compress/libzstd_1.3.8.la ${BIN_LDFLAGS} ${DEP_DIR}/lib64/libprometheus-cpp-pull.a ${DEP_DIR}/lib64/libprometheus-cpp-core.a ${RUNTIME_DIR}/lib/libob_sql_proxy_parser_static.a ${DEP_DIR}/lib/libssl.a ${DEP_DIR}/lib/libcrypto.a -lpthread
+
+  obproxy_libobproxy_so_la_LDFLAGS :=${AM_LDFLAGS} ${DEP_DIR}/lib/libgrpc++.a -lpthread -lc -lm -lrt ${DEP_DIR}/lib/libcurl.a -ldl -L${DEP_DIR}/lib -llber ${DEP_DIR}/lib/sqlite/libsqlite3.a ${DEP_DIR}/lib/libgrpc_cronet.a ${DEP_DIR}/lib/libgrpc++_cronet.a -shared ${DEP_DIR}/lib64/libprotobuf.a -fPIC
+endif
+
 nodist_obproxy_libobproxy_la_SOURCES = build_version.c
-obproxy_obproxy_SOURCES := obproxy/main.cpp ${pub_source}
+obproxy_obproxy_SOURCES := obproxy/main.cpp
 
 obproxy_obproxy_LDADD_BASE := obproxy/libobproxy.la lib/compress/libzlib_1.0.la lib/compress/libzstd_1.3.8.la ${BIN_LDFLAGS} ${DEP_DIR}/lib64/libprotobuf.a ${DEP_DIR}/lib/libgrpc.a ${DEP_DIR}/lib/libgrpc++.a ${DEP_DIR}/lib/libgrpc_unsecure.a ${DEP_DIR}/lib/libgrpc++_unsecure.a ${DEP_DIR}/lib/libgrpc++_reflection.a ${DEP_DIR}/lib/libgrpcpp_channelz.a ${DEP_DIR}/lib/libgrpc++_error_details.a ${DEP_DIR}/lib/libgrpc_cronet.a ${DEP_DIR}/lib/libgrpc++_cronet.a ${DEP_DIR}/lib/libgpr.a ${DEP_DIR}/lib/libaddress_sorting.a ${DEP_DIR}/lib/libcares.a ${DEP_DIR}/lib64/libprometheus-cpp-pull.a ${DEP_DIR}/lib64/libprometheus-cpp-core.a ${RUNTIME_DIR}/lib/libob_sql_proxy_parser_static.a ${DEP_DIR}/lib/libssl.a ${DEP_DIR}/lib/libcrypto.a -lpthread ${DEP_DIR}/lib/libcurl.a ${DEP_DIR}/lib/libcrypto.a ${DEP_DIR}/lib/sqlite/libsqlite3.a
 obproxy_obproxy_LDFLAGS :=${AM_LDFLAGS} -lpthread -lc -lm -lrt -ldl -L${DEP_DIR}/lib
diff --git a/src/obproxy/cmd/ob_cmd_handler.cpp b/src/obproxy/cmd/ob_cmd_handler.cpp
index 5adcd4d9..39e13505 100644
--- a/src/obproxy/cmd/ob_cmd_handler.cpp
+++ b/src/obproxy/cmd/ob_cmd_handler.cpp
@@ -88,8 +88,7 @@ int ObCmdHandler::reset()
   } else {
     internal_buf_->reset();
     seq_ = original_seq_;
-    protocol_ = ObProxyProtocol::PROTOCOL_NORMAL;
-    ob20_param_.reset();
+    // could not reset protocol and ob20 param, cause we need fill external buf according to protocol
   }
   return ret;
 }
diff --git a/src/obproxy/cmd/ob_dds_config_handler.cpp b/src/obproxy/cmd/ob_dds_config_handler.cpp
index 8a8cb1d6..4bd3ceb9 100644
--- a/src/obproxy/cmd/ob_dds_config_handler.cpp
+++ b/src/obproxy/cmd/ob_dds_config_handler.cpp
@@ -361,7 +361,6 @@ int ObDdsConfigHandler::handle_parse_where_fields(ObArenaAllocator* allocator, O
     } else {
       ObExprParser expr_parser(*allocator, parse_mode);
       expr_result.part_key_info_.key_num_ = 0;
-      expr_result.target_mask_ = 0;
       if (OB_FAIL(expr_parser.parse_reqsql(sql,  sql_parse_result.get_parsed_length(),
                                            expr_result, sql_parse_result.get_stmt_type(),
                                            connection_collation))) {
diff --git a/src/obproxy/cmd/ob_internal_cmd_handler.cpp b/src/obproxy/cmd/ob_internal_cmd_handler.cpp
index c8446a53..be03c433 100644
--- a/src/obproxy/cmd/ob_internal_cmd_handler.cpp
+++ b/src/obproxy/cmd/ob_internal_cmd_handler.cpp
@@ -111,8 +111,7 @@ int ObInternalCmdHandler::reset()
   } else {
     internal_buf_->reset();
     seq_ = original_seq_;
-    protocol_ = ObProxyProtocol::PROTOCOL_NORMAL;
-    ob20_param_.reset();
+    // could not reset protocol and ob20_param in handler, cause we need filll external buf according to protocol
   }
   return ret;
 }
@@ -621,7 +620,8 @@ int ObInternalCmdHandler::handle_callback(int event, void *data)
       MUTEX_TRY_LOCK(lock, action_.mutex_, submit_thread_);
       if (lock.is_locked()) {
         if (!action_.cancelled_) {
-          if (INTERNAL_CMD_EVENTS_SUCCESS == saved_event_ && OB_SUCCESS != fill_external_buf()) {
+          if (INTERNAL_CMD_EVENTS_SUCCESS == saved_event_
+              && OB_SUCCESS != fill_external_buf()) {
             saved_event_ = INTERNAL_CMD_EVENTS_FAILED;
           }
           DEBUG_ICMD("do callback now", K_(saved_event));
diff --git a/src/obproxy/cmd/ob_sequence_info_handler.cpp b/src/obproxy/cmd/ob_sequence_info_handler.cpp
index abe8f4a5..d0fc0450 100644
--- a/src/obproxy/cmd/ob_sequence_info_handler.cpp
+++ b/src/obproxy/cmd/ob_sequence_info_handler.cpp
@@ -175,7 +175,8 @@ int ObSequenceInfoHandler::handle_shard_sequence_params()
   } else if (!param_.tnt_id_.empty() && param_.tnt_col_.empty()) {
     snprintf(err_msg_, SEQUENCE_ERR_MSG_SIZE, "tnt_col is empty while tnt_id used");
     ret = OB_ERR_UNEXPECTED;
-  } else if (OB_FAIL(ObProxyShardUtils::get_real_info(*logic_db_info,
+  } else if (OB_FAIL(ObProxyShardUtils::get_real_info(session_info,
+                     *logic_db_info,
                      sequence_table_name,
                      parse_result,
                      shard_conn,
@@ -211,6 +212,9 @@ int ObSequenceInfoHandler::handle_shard_sequence_params()
     table_id_ = table_id;
     group_id_ = group_id;
     eid_ = es_id;
+    session_info.set_group_id(group_id);
+    session_info.set_table_id(table_id);
+    session_info.set_es_id(es_id);
 
     snprintf(seq_id_buf_, 2048, "%.*s-%.*s-%.*s-%.*s-%.*s-%.*s-%02ld-%02ld-%02ld",
              logic_tenant_name_.config_string_.length(), logic_tenant_name_.config_string_.ptr(),
@@ -222,6 +226,11 @@ int ObSequenceInfoHandler::handle_shard_sequence_params()
              group_id_, table_id_, eid_);
     param_.seq_id_ = ObString(seq_id_buf_);
   }
+
+  if (NULL != logic_db_info) {
+    logic_db_info->dec_ref();
+    logic_db_info = NULL;
+  }
   LOG_DEBUG("Left handle_shard_sequence_params", K(param_), K(table_id_), K(group_id_), K(eid_));
   return ret;
 }
diff --git a/src/obproxy/cmd/ob_show_route_handler.cpp b/src/obproxy/cmd/ob_show_route_handler.cpp
index 96df7710..fcbc4996 100644
--- a/src/obproxy/cmd/ob_show_route_handler.cpp
+++ b/src/obproxy/cmd/ob_show_route_handler.cpp
@@ -463,8 +463,6 @@ int ObShowRouteHandler::dump_table_item(const ObTableEntry &entry)
   int ret = OB_SUCCESS;
   const int64_t count = entry.get_server_count();
   ObSqlString server_addr;
-  uint32_t ipv4 = 0;
-  int32_t port = 0;
   ObRole role = INVALID_ROLE;
   ObReplicaType replica_type = REPLICA_TYPE_MAX;
   const ObTenantServer *ts = NULL;
@@ -479,30 +477,24 @@ int ObShowRouteHandler::dump_table_item(const ObTableEntry &entry)
     part_info = entry.get_part_info();
   }
   for (int64_t i = 0; i < count && OB_SUCC(ret); ++i) {
+    char ip_port_buf[MAX_IP_ADDR_LENGTH];
+    memset(ip_port_buf, 0, sizeof(ip_port_buf));
     if (NULL != ts) {
-      ipv4 = ts->get_replica_location(i)->server_.get_ipv4();
-      port = ts->get_replica_location(i)->server_.get_port();
       role = ts->get_replica_location(i)->role_;
       replica_type = ts->get_replica_location(i)->replica_type_;
+      ts->get_replica_location(i)->server_.ip_port_to_string(ip_port_buf, sizeof(ip_port_buf));
     } else if (NULL != pl) {
-      ipv4 = pl->get_replica(i)->server_.get_ipv4();
-      port = pl->get_replica(i)->server_.get_port();
       role = pl->get_replica(i)->role_;
       replica_type = pl->get_replica(i)->replica_type_;
+      pl->get_replica(i)->server_.ip_port_to_string(ip_port_buf, sizeof(ip_port_buf));
     } else {
-      ipv4 = 0;
-      port = -1;
       role = INVALID_ROLE;
       replica_type = REPLICA_TYPE_MAX;
     }
     const ObString &string = ObProxyReplicaLocation::get_replica_type_string(replica_type);
-    if (OB_FAIL(server_addr.append_fmt("server[%ld]=%d.%d.%d.%d:%d,%s,%.*s; ",
+    if (OB_FAIL(server_addr.append_fmt("server[%ld]=%s,%s,%.*s; ",
                                         i,
-                                        (ipv4 >> 24) & 0XFF,
-                                        (ipv4 >> 16) & 0xFF,
-                                        (ipv4 >> 8) & 0xFF,
-                                        (ipv4) & 0xFF,
-                                        port,
+                                        ip_port_buf,
                                         role2str(role),
                                         string.length(), string.ptr()))) {
       WARN_ICMD("fail to append server_addr", K(i), K(ret));
@@ -674,24 +666,18 @@ int ObShowRouteHandler::dump_partition_item(const ObPartitionEntry &entry)
   int ret = OB_SUCCESS;
   const int64_t count = entry.get_server_count();
   ObSqlString server_addr;
-  uint32_t ipv4 = 0;
-  int32_t port = 0;
   ObRole role = INVALID_ROLE;
   ObReplicaType replica_type = REPLICA_TYPE_MAX;
   const ObProxyPartitionLocation &pl = entry.get_pl();
   for (int64_t i = 0; i < count && OB_SUCC(ret); ++i) {
-    ipv4 = pl.get_replica(i)->server_.get_ipv4();
-    port = pl.get_replica(i)->server_.get_port();
     role = pl.get_replica(i)->role_;
     replica_type = pl.get_replica(i)->replica_type_;
     const ObString &string = ObProxyReplicaLocation::get_replica_type_string(replica_type);
-    if (OB_FAIL(server_addr.append_fmt("server[%ld]=%d.%d.%d.%d:%d,%s,%.*s; ",
+    char ip_port_buf[MAX_IP_ADDR_LENGTH];
+    pl.get_replica(i)->server_.ip_port_to_string(ip_port_buf, sizeof(ip_port_buf));
+    if (OB_FAIL(server_addr.append_fmt("server[%ld]=%s,%s,%.*s; ",
                                         i,
-                                        (ipv4 >> 24) & 0XFF,
-                                        (ipv4 >> 16) & 0xFF,
-                                        (ipv4 >> 8) & 0xFF,
-                                        (ipv4) & 0xFF,
-                                        port,
+                                        ip_port_buf,
                                         role2str(role),
                                         string.length(), string.ptr()))) {
       WARN_ICMD("fail to append server_addr", K(i), K(ret));
diff --git a/src/obproxy/cmd/ob_show_sqlaudit_handler.cpp b/src/obproxy/cmd/ob_show_sqlaudit_handler.cpp
index 001d31e2..73a7282b 100644
--- a/src/obproxy/cmd/ob_show_sqlaudit_handler.cpp
+++ b/src/obproxy/cmd/ob_show_sqlaudit_handler.cpp
@@ -368,9 +368,10 @@ enum
   OB_SSA_SERVER_SEND_SAVED_LOGIN_TIME,
   OB_SSA_SERVER_SEND_USE_DATABASE_TIME,
   OB_SSA_SERVER_SEND_SESSION_VARIABLE_TIME,
+  OB_SSA_SERVER_SEND_SESSION_USER_VARIABLE_TIME,
   OB_SSA_SERVER_SEND_ALL_SESSION_VARIABLE_TIME,
-  OB_SSA_SERVER_SEND_LAST_INSERT_ID_TIME,
   OB_SSA_SERVER_SEND_START_TRANS_TIME,
+  OB_SSA_SERVER_SEND_XA_START_TIME,
   OB_SSA_BUILD_SERVER_REQUEST_TIME,
   OB_SSA_PLUGIN_COMPRESS_REQUEST_TIME,
   OB_SSA_PREPARE_SEND_REQUEST_TO_SERVER_TIME,
@@ -408,9 +409,10 @@ const ObProxyColumnSchema SSA_COLUMN_ARRAY[OB_SSA_MAX_COLUMN_ID] = {
     ObProxyColumnSchema::make_schema(OB_SSA_SERVER_SEND_SAVED_LOGIN_TIME,        "server_send_saved_login_ns", obmysql::OB_MYSQL_TYPE_LONG),
     ObProxyColumnSchema::make_schema(OB_SSA_SERVER_SEND_USE_DATABASE_TIME,       "server_send_use_database_ns", obmysql::OB_MYSQL_TYPE_LONG),
     ObProxyColumnSchema::make_schema(OB_SSA_SERVER_SEND_SESSION_VARIABLE_TIME,   "server_send_session_variable_ns", obmysql::OB_MYSQL_TYPE_LONG),
+    ObProxyColumnSchema::make_schema(OB_SSA_SERVER_SEND_SESSION_USER_VARIABLE_TIME, "server_send_session_user_variable_ns", obmysql::OB_MYSQL_TYPE_LONG),
     ObProxyColumnSchema::make_schema(OB_SSA_SERVER_SEND_ALL_SESSION_VARIABLE_TIME, "server_send_all_session_variable_ns", obmysql::OB_MYSQL_TYPE_LONG),
-    ObProxyColumnSchema::make_schema(OB_SSA_SERVER_SEND_LAST_INSERT_ID_TIME,     "server_send_last_insert_id_ns", obmysql::OB_MYSQL_TYPE_LONG),
     ObProxyColumnSchema::make_schema(OB_SSA_SERVER_SEND_START_TRANS_TIME,        "server_send_start_trans_ns", obmysql::OB_MYSQL_TYPE_LONG),
+    ObProxyColumnSchema::make_schema(OB_SSA_SERVER_SEND_XA_START_TIME,           "server_send_xa_start_ns", obmysql::OB_MYSQL_TYPE_LONG),
     ObProxyColumnSchema::make_schema(OB_SSA_BUILD_SERVER_REQUEST_TIME,           "build_server_request_ns", obmysql::OB_MYSQL_TYPE_LONG),
     ObProxyColumnSchema::make_schema(OB_SSA_PLUGIN_COMPRESS_REQUEST_TIME,        "plugin_compress_request_ns", obmysql::OB_MYSQL_TYPE_LONG),
     ObProxyColumnSchema::make_schema(OB_SSA_PREPARE_SEND_REQUEST_TO_SERVER_TIME, "prepare_send_request_to_server_ns", obmysql::OB_MYSQL_TYPE_LONG),
@@ -549,9 +551,10 @@ int ObShowSqlauditHandler::dump_sqlaudit_record(ObSqlauditRecord &record)
   cells[OB_SSA_SERVER_SEND_SAVED_LOGIN_TIME].set_int(record.cmd_time_stat_.server_send_saved_login_time_);
   cells[OB_SSA_SERVER_SEND_USE_DATABASE_TIME].set_int(record.cmd_time_stat_.server_send_use_database_time_);
   cells[OB_SSA_SERVER_SEND_SESSION_VARIABLE_TIME].set_int(record.cmd_time_stat_.server_send_session_variable_time_);
+  cells[OB_SSA_SERVER_SEND_SESSION_USER_VARIABLE_TIME].set_int(record.cmd_time_stat_.server_send_session_user_variable_time_);
   cells[OB_SSA_SERVER_SEND_ALL_SESSION_VARIABLE_TIME].set_int(record.cmd_time_stat_.server_send_all_session_variable_time_);
-  cells[OB_SSA_SERVER_SEND_LAST_INSERT_ID_TIME].set_int(record.cmd_time_stat_.server_send_last_insert_id_time_);
   cells[OB_SSA_SERVER_SEND_START_TRANS_TIME].set_int(record.cmd_time_stat_.server_send_start_trans_time_);
+  cells[OB_SSA_SERVER_SEND_XA_START_TIME].set_int(record.cmd_time_stat_.server_send_xa_start_time_);
   cells[OB_SSA_BUILD_SERVER_REQUEST_TIME].set_int(record.cmd_time_stat_.build_server_request_time_);
   cells[OB_SSA_PLUGIN_COMPRESS_REQUEST_TIME].set_int(record.cmd_time_stat_.plugin_compress_request_time_);
   cells[OB_SSA_PLUGIN_DECOMPRESS_RESPONSE_TIME].set_int(record.cmd_time_stat_.plugin_decompress_response_time_);
diff --git a/src/obproxy/cmd/ob_show_topology_handler.cpp b/src/obproxy/cmd/ob_show_topology_handler.cpp
index 76100493..341ee436 100644
--- a/src/obproxy/cmd/ob_show_topology_handler.cpp
+++ b/src/obproxy/cmd/ob_show_topology_handler.cpp
@@ -13,8 +13,8 @@
 #define USING_LOG_PREFIX PROXY_CMD
 
 #include "cmd/ob_show_topology_handler.h"
-#include "iocore/eventsystem/ob_event_processor.h"
 #include "dbconfig/ob_proxy_db_config_info.h"
+#include "iocore/eventsystem/ob_event_processor.h"
 #include "lib/string/ob_sql_string.h"
 
 using namespace oceanbase::common;
@@ -45,17 +45,38 @@ static const EMySQLFieldType column_type[OB_TC_MAX_COLUMN_ID] = {
     OB_MYSQL_TYPE_LONG
 };
 
+//TopologyColumnID for sharding
+enum
+{
+  OB_TC_ID = 0,
+  OB_TC_GROUP_NAME,
+  OB_TC_TABLE_NAME,
+  OB_TC_SCHEMA_TYPE,
+  OB_TC_SHARD_KEY,
+  OB_TC_SHARD_RULE,
+  OB_TC_SHARD_MAX_COLUMN_ID,
+};
+
+const ObProxyColumnSchema SHOW_TOPOLOGY_ARRAY[OB_TC_SHARD_MAX_COLUMN_ID] = {
+    ObProxyColumnSchema::make_schema(OB_TC_ID,           "id",            OB_MYSQL_TYPE_LONG),
+    ObProxyColumnSchema::make_schema(OB_TC_GROUP_NAME,   "group_name",    OB_MYSQL_TYPE_VARCHAR),
+    ObProxyColumnSchema::make_schema(OB_TC_TABLE_NAME,   "table_name",    OB_MYSQL_TYPE_VARCHAR),
+    ObProxyColumnSchema::make_schema(OB_TC_SCHEMA_TYPE,  "schema_type",   OB_MYSQL_TYPE_VARCHAR),
+    ObProxyColumnSchema::make_schema(OB_TC_SHARD_KEY,    "shard_key",     OB_MYSQL_TYPE_VARCHAR),
+    ObProxyColumnSchema::make_schema(OB_TC_SHARD_RULE,   "shard_rule",    OB_MYSQL_TYPE_VARCHAR),
+};
+
 ObShowTopologyHandler::ObShowTopologyHandler(ObMIOBuffer *buf, ObCmdInfo &info)
   : ObCmdHandler(buf, info)
 {
 }
 
-int ObShowTopologyHandler::handle_show_topology(const ObString &tenant_name,
-                                                const ObString &db_name,
-                                                const ObString &group_name)
+int ObShowTopologyHandler::handle_show_elastic_id(const ObString &tenant_name,
+                                                  const ObString &db_name,
+                                                  const ObString &group_name)
 {
   int ret = OB_SUCCESS;
-  if (OB_FAIL(dump_topology_header())) {
+  if (OB_FAIL(dump_elastic_id_header())) {
     WARN_CMD("fail to dump_header", K(ret));
   } else {
     ObDbConfigCache &dbconfig_cache = get_global_dbconfig_cache();
@@ -144,7 +165,7 @@ int ObShowTopologyHandler::dump_elastic_id(const int64_t eid)
   return ret;
 }
 
-int ObShowTopologyHandler::dump_topology_header()
+int ObShowTopologyHandler::dump_elastic_id_header()
 {
   int ret = OB_SUCCESS;
   if (OB_FAIL(encode_header(column_name, column_type, OB_TC_MAX_COLUMN_ID))) {
@@ -153,7 +174,7 @@ int ObShowTopologyHandler::dump_topology_header()
   return ret;
 }
 
-int ObShowTopologyHandler::show_topology_cmd_callback(ObMIOBuffer *buf,
+int ObShowTopologyHandler::show_elastic_id_cmd_callback(ObMIOBuffer *buf,
                                                       ObCmdInfo &info,
                                                       const ObString &logic_tenant_name,
                                                       const ObString &logic_database_name,
@@ -167,7 +188,7 @@ int ObShowTopologyHandler::show_topology_cmd_callback(ObMIOBuffer *buf,
     ERROR_CMD("fail to new ObShowTopologyHandler", K(ret));
   } else if (OB_FAIL(handler->init())) {
     WARN_CMD("fail to init for ObShowTopologyHandler");
-  } else if (OB_FAIL(handler->handle_show_topology(logic_tenant_name, logic_database_name, group_name))){
+  } else if (OB_FAIL(handler->handle_show_elastic_id(logic_tenant_name, logic_database_name, group_name))){
     WARN_CMD("fail to handle show topology", K(logic_tenant_name), K(logic_database_name), K(group_name), K(ret));
   }
 
@@ -178,6 +199,255 @@ int ObShowTopologyHandler::show_topology_cmd_callback(ObMIOBuffer *buf,
   return ret;
 }
 
+
+int ObShowTopologyHandler::show_topology_cmd_callback(ObMIOBuffer *buf,
+                                                      ObCmdInfo &info,
+                                                      const ObString &logic_tenant_name,
+                                                      const ObString &logic_database_name,
+                                                      const ObString &table_name)
+{
+  int ret = OB_SUCCESS;
+  ObShowTopologyHandler *handler = NULL;
+
+  if (OB_ISNULL(handler = new(std::nothrow) ObShowTopologyHandler(buf, info))) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    ERROR_CMD("fail to new ObShowTopologyHandler", K(ret));
+  } else if (OB_FAIL(handler->init())) {
+    WARN_CMD("fail to init for ObShowTopologyHandler");
+  } else if (OB_FAIL(handler->handle_show_topology(logic_tenant_name, logic_database_name, table_name))){
+    WARN_CMD("fail to handle show topology", K(logic_tenant_name), K(logic_database_name), K(ret));
+  }
+
+  if (OB_LIKELY(NULL != handler)) {
+    delete handler;
+    handler = NULL;
+  }
+  return ret;
+}
+
+int ObShowTopologyHandler::handle_show_topology(const ObString &tenant_name,
+                                                const ObString &db_name,
+                                                const ObString &table_name)
+{
+  int ret = OB_SUCCESS;
+  if (OB_FAIL(encode_header(SHOW_TOPOLOGY_ARRAY, OB_TC_SHARD_MAX_COLUMN_ID))) {
+    WARN_CMD("fail to dump_header", K(ret));
+  } else {
+    ObDbConfigCache &dbconfig_cache = get_global_dbconfig_cache();
+    ObDbConfigLogicDb *db_info = NULL;
+    ObShardRule *shard_rule = NULL;
+    if (OB_ISNULL(db_info = dbconfig_cache.get_exist_db_info(tenant_name, db_name))) {
+      ret = OB_ERR_BAD_DATABASE;
+      WARN_CMD("logic database not exist", K(tenant_name), K(db_name), K(ret));
+    } else if (OB_UNLIKELY(db_info->is_single_shard_db_table())) {
+      if (OB_FAIL(dump_shard_topology_for_single_db(table_name))) {
+        WARN_CMD("fail to encode topology packet for single db", K(tenant_name), K(db_name), K(ret));
+      }
+    } else if (OB_FAIL(db_info->get_shard_rule(shard_rule, table_name))) {
+      // no logic table
+      ret = OB_TABLE_NOT_EXIST;
+    } else if (OB_UNLIKELY((1 == shard_rule->db_size_) && (1 == shard_rule->tb_size_))) {
+      if (OB_FAIL(dump_shard_topology_for_shard_db_single_tb(table_name))) {
+        WARN_CMD("fail to encode topology packet for shard_db_single_tb", K(tenant_name), K(db_name), K(shard_rule->db_size_), K(shard_rule->tb_size_), K(ret));
+      }
+    } else if (OB_UNLIKELY(1 == shard_rule->tb_size_)) {
+      if (OB_FAIL(dump_shard_topology_for_shard_db_non_shard_tb(table_name, shard_rule))) {
+        WARN_CMD("fail to encode topology packet for shard_db_non_shard_tb", K(tenant_name), K(db_name), K(shard_rule->db_size_), K(shard_rule->tb_size_), K(ret));
+      }
+    } else {
+      if (OB_FAIL(dump_shard_topology_for_shard_db_shard_tb(shard_rule))) {
+        WARN_CMD("fail to encode topology packet for shard_db_shard_tb", K(tenant_name), K(db_name), K(shard_rule->db_size_), K(shard_rule->tb_size_), K(ret));
+      }
+    }
+
+    if (NULL != db_info) {
+      db_info->dec_ref();
+      db_info = NULL;
+    }
+  }
+
+  if (OB_SUCC(ret)) {
+    if (OB_FAIL(encode_eof_packet())) {
+      WARN_CMD("fail to encode eof packet", K(ret));
+    }
+  }
+
+  if (OB_FAIL(ret)) {
+    if (OB_FAIL(encode_err_packet(ret))) {
+      WARN_CMD("fail to encode internal err packet, callback", K(ret));
+    } else {
+      INFO_CMD("succ to encode internal err packet, callback");
+      ret = OB_SUCCESS;
+    }
+  }
+
+  if (OB_SUCC(ret)) {
+    if (OB_FAIL(fill_external_buf())) {
+      WARN_CMD("fail to fill_external_buf", K(ret));
+    }
+  }
+  return ret;
+}
+
+int ObShowTopologyHandler::dump_shard_topology_for_single_db(ObString table_name)
+{
+  int ret = OB_SUCCESS;
+  ObNewRow row;
+  ObObj cells[OB_TC_SHARD_MAX_COLUMN_ID];
+  cells[OB_TC_ID].set_int(0);
+  cells[OB_TC_GROUP_NAME].set_varchar("group_00");
+  cells[OB_TC_TABLE_NAME].set_varchar(table_name);
+  cells[OB_TC_SCHEMA_TYPE].set_varchar("SINGLE");
+  cells[OB_TC_SHARD_KEY].set_null();
+  cells[OB_TC_SHARD_RULE].set_null();
+  row.cells_ = cells;
+  row.count_ = OB_TC_SHARD_MAX_COLUMN_ID;
+  if (OB_FAIL(encode_row_packet(row))) {
+    WARN_CMD("fail to encode row packet for shard", K(row), K(ret));
+  }
+  return ret;
+}
+
+int ObShowTopologyHandler::dump_shard_topology_for_shard_db_single_tb(ObString table_name)
+{
+  int ret = OB_SUCCESS;
+  ObNewRow row;
+  ObObj cells[OB_TC_SHARD_MAX_COLUMN_ID];
+  cells[OB_TC_ID].set_int(0);
+  cells[OB_TC_GROUP_NAME].set_varchar("group_00");
+  cells[OB_TC_TABLE_NAME].set_varchar(table_name);
+  cells[OB_TC_SCHEMA_TYPE].set_varchar("SHARD");
+  cells[OB_TC_SHARD_KEY].set_null();
+  cells[OB_TC_SHARD_RULE].set_null();
+  row.cells_ = cells;
+  row.count_ = OB_TC_SHARD_MAX_COLUMN_ID;
+  if (OB_FAIL(encode_row_packet(row))) {
+    WARN_CMD("fail to encode row packet for shard", K(row), K(ret));
+  }
+  return ret;
+}
+
+int ObShowTopologyHandler::dump_shard_topology_for_shard_db_non_shard_tb(ObString table_name, ObShardRule *shard_rule)
+{
+  int ret = OB_SUCCESS; 
+  ObNewRow row;
+  ObObj cells[OB_TC_SHARD_MAX_COLUMN_ID];
+  int size = OB_TC_SHARD_MAX_COLUMN_ID;
+  ObString real_group_name;
+  ObString real_table_name = table_name;
+  char group_name_buf[OB_MAX_TABLEGROUP_NAME_LENGTH];
+  ObString schema_type("SHARD");
+  char shard_key_buf[OB_MAX_COLUMN_NAME_LENGTH];
+  ObString shard_key_str = get_shard_key_str(*shard_rule, shard_key_buf, OB_MAX_COLUMN_NAME_LENGTH);
+  ObString shard_rule_str = get_shard_rule_str(*shard_rule);
+
+  int64_t count = shard_rule->db_size_;
+  for(int64_t index = 0; index < count; ++index) {
+    int64_t group_index = index;
+    shard_rule->get_real_name_by_index(shard_rule->db_size_,
+                                        shard_rule->db_suffix_len_, group_index,
+                                        shard_rule->db_prefix_.config_string_,
+                                        shard_rule->db_tail_.config_string_,
+                                        group_name_buf, OB_MAX_TABLEGROUP_NAME_LENGTH);
+    real_group_name = ObString::make_string(group_name_buf);
+    cells[OB_TC_ID].set_int(index);
+    cells[OB_TC_GROUP_NAME].set_varchar(real_group_name);
+    cells[OB_TC_TABLE_NAME].set_varchar(real_table_name);
+    cells[OB_TC_SCHEMA_TYPE].set_varchar(schema_type);
+    cells[OB_TC_SHARD_KEY].set_varchar(shard_key_str);
+    cells[OB_TC_SHARD_RULE].set_varchar(shard_rule_str);
+    row.cells_ = cells;
+    row.count_ = size;
+    if (OB_FAIL(encode_row_packet(row))) {
+      WARN_CMD("fail to encode row packet for shard", K(row), K(ret));
+    }
+  }
+  return ret;
+}
+
+int ObShowTopologyHandler::dump_shard_topology_for_shard_db_shard_tb(ObShardRule *shard_rule)
+{
+  int ret = OB_SUCCESS;
+  if (OB_UNLIKELY((0 == shard_rule->db_size_) || (shard_rule->tb_size_ < shard_rule->db_size_))) {
+    WARN_CMD("wrong shard rule for shard_db_shard_tb", K(shard_rule->db_size_), K(shard_rule->tb_size_), K(ret));
+  } else {
+    ObNewRow row;
+    ObObj cells[OB_TC_SHARD_MAX_COLUMN_ID];
+    int size = OB_TC_SHARD_MAX_COLUMN_ID;
+    ObString real_group_name;
+    ObString real_table_name;
+    char group_name_buf[OB_MAX_TABLEGROUP_NAME_LENGTH];
+    char table_name_buf[OB_MAX_USER_TABLE_NAME_LENGTH];
+    char shard_key_buf[OB_MAX_COLUMN_NAME_LENGTH];
+    ObString schema_type("SHARD");
+    ObString shard_key_str = get_shard_key_str(*shard_rule, shard_key_buf, OB_MAX_COLUMN_NAME_LENGTH);
+    ObString shard_rule_str = get_shard_rule_str(*shard_rule);
+
+    int64_t count = shard_rule->tb_size_;
+    for(int64_t index = 0; index < count; ++index) {
+      int64_t group_index = index / (shard_rule->tb_size_ / shard_rule->db_size_);
+      shard_rule->get_real_name_by_index(shard_rule->db_size_,
+                                          shard_rule->db_suffix_len_, group_index,
+                                          shard_rule->db_prefix_.config_string_,
+                                          shard_rule->db_tail_.config_string_,
+                                          group_name_buf, OB_MAX_TABLEGROUP_NAME_LENGTH);
+      shard_rule->get_real_name_by_index(shard_rule->tb_size_,
+                                          shard_rule->tb_suffix_len_, index,
+                                          shard_rule->tb_prefix_.config_string_,
+                                          shard_rule->tb_tail_.config_string_,
+                                          table_name_buf, OB_MAX_USER_TABLE_NAME_LENGTH);
+      real_group_name = ObString::make_string(group_name_buf);
+      real_table_name = ObString::make_string(table_name_buf);
+      cells[OB_TC_ID].set_int(index);
+      cells[OB_TC_GROUP_NAME].set_varchar(real_group_name);
+      cells[OB_TC_TABLE_NAME].set_varchar(real_table_name);
+      cells[OB_TC_SCHEMA_TYPE].set_varchar(schema_type);
+      cells[OB_TC_SHARD_KEY].set_varchar(shard_key_str);
+      cells[OB_TC_SHARD_RULE].set_varchar(shard_rule_str);
+      row.cells_ = cells;
+      row.count_ = size;
+      if (OB_FAIL(encode_row_packet(row))) {
+        WARN_CMD("fail to encode row packet for shard", K(row), K(ret));
+      }
+    }
+  }
+  return ret;
+}
+
+ObString ObShowTopologyHandler::get_shard_key_str(dbconfig::ObShardRule& shard_rule, char* const target_buf, const int target_buf_len)
+{
+  ObString ret_str = ObString::make_string("empty shard key");
+  if (OB_LIKELY(0 != shard_rule.tb_rules_.count())) {
+    ObString& origin_string = shard_rule.tb_rules_.at(0).shard_rule_str_.config_string_;
+    for(int i = 0; i < origin_string.length(); ++i) {
+      if(origin_string[i] != '#') {
+        continue;
+      } else {
+        int j = i + 1;
+        while(j < origin_string.length() && origin_string[j] != '#') {
+          ++j;
+        }
+        if((j == origin_string.length()) || (j - i - 1) >= target_buf_len) {
+          ret_str = ObString::make_string("error shard key");
+        } else {
+          MEMCPY(target_buf, origin_string.ptr() + i + 1, j - i - 1);
+          ret_str.assign_ptr(target_buf, j - i - 1);
+        }
+        break;
+      }
+    }
+  }
+  return ret_str;
+}
+
+ObString ObShowTopologyHandler::get_shard_rule_str(dbconfig::ObShardRule& shard_rule)
+{
+  ObString ret_str = ObString::make_string("empty shard rule");
+  if (OB_LIKELY(0 != shard_rule.tb_rules_.count())) {
+    ret_str = shard_rule.tb_rules_.at(0).shard_rule_str_.config_string_;
+  }
+  return ret_str;
+}
 } // end of namespace proxy
 } // end of namespace obproxy
 } // end of namespace oceanbase
diff --git a/src/obproxy/cmd/ob_show_topology_handler.h b/src/obproxy/cmd/ob_show_topology_handler.h
index b250c563..0cb0c667 100644
--- a/src/obproxy/cmd/ob_show_topology_handler.h
+++ b/src/obproxy/cmd/ob_show_topology_handler.h
@@ -22,7 +22,9 @@ namespace obproxy
 namespace dbconfig
 {
 class ObGroupCluster;
+class ObShardRule;
 }
+
 namespace obutils
 {
 class ObShowTopologyHandler : public ObCmdHandler
@@ -31,22 +33,37 @@ class ObShowTopologyHandler : public ObCmdHandler
   ObShowTopologyHandler(event::ObMIOBuffer *buf, ObCmdInfo &info);
   virtual ~ObShowTopologyHandler() {}
 
+  int handle_show_elastic_id(const common::ObString &tenant_name,
+                             const common::ObString &db_name,
+                             const common::ObString &group_name);
+  static int show_elastic_id_cmd_callback(event::ObMIOBuffer *buf,
+                                          ObCmdInfo &info,
+                                          const common::ObString &logic_tenant_name,
+                                          const common::ObString &logic_database_name,
+                                          const common::ObString &group_name);
   int handle_show_topology(const common::ObString &tenant_name,
                            const common::ObString &db_name,
-                           const common::ObString &group_name);
+                           const common::ObString &table_name);
   static int show_topology_cmd_callback(event::ObMIOBuffer *buf,
                                         ObCmdInfo &info,
                                         const common::ObString &logic_tenant_name,
                                         const common::ObString &logic_database_name,
-                                        const common::ObString &group_name);
+                                        const common::ObString &table_name);
 
 public:
   static const int64_t OB_MAX_ELASTIC_ID_COUNT = 256;
 
 private:
-  int dump_topology_header();
+  int dump_elastic_id_header();
   int dump_elastic_id(const int64_t eid);
 
+  int dump_shard_topology_for_single_db(ObString table_name);
+  int dump_shard_topology_for_shard_db_single_tb(ObString table_name);
+  int dump_shard_topology_for_shard_db_non_shard_tb(ObString table_name, dbconfig::ObShardRule *shard_rule);
+  int dump_shard_topology_for_shard_db_shard_tb(dbconfig::ObShardRule *shard_rule);
+
+  ObString get_shard_key_str(dbconfig::ObShardRule& shard_rule, char* const target_buf, const int target_buf_len);
+  ObString get_shard_rule_str(dbconfig::ObShardRule& shard_rule);
 private:
   DISALLOW_COPY_AND_ASSIGN(ObShowTopologyHandler);
 };
diff --git a/src/obproxy/cmd/ob_show_vip_handler.cpp b/src/obproxy/cmd/ob_show_vip_handler.cpp
index 54921222..2574107e 100644
--- a/src/obproxy/cmd/ob_show_vip_handler.cpp
+++ b/src/obproxy/cmd/ob_show_vip_handler.cpp
@@ -16,6 +16,8 @@
 #include "utils/ob_proxy_utils.h"
 #include "iocore/eventsystem/ob_task.h"
 #include "iocore/eventsystem/ob_event_processor.h"
+#include "share/config/ob_config.h"
+#include "obutils/ob_config_processor.h"
 
 using namespace oceanbase::common;
 using namespace oceanbase::share;
@@ -68,7 +70,6 @@ int ObShowVipHandler::main_handler(int event, void *data)
   } else if (OB_FAIL(dump_header())) {
     WARN_ICMD("fail to dump header", K(ret));
   } else {
-    ObVipTenantCache &vt_cache = get_global_vip_tenant_processor().get_vt_cache();
     ObVipTenant vip_tenant;
     if (!like_name_.empty()) {
       //dump one vip tenant
@@ -87,9 +88,9 @@ int ObShowVipHandler::main_handler(int event, void *data)
           WARN_ICMD("unexpected argument", K(vip_string), K(match_name), K(ret));
         } else if (OB_FAIL(get_int_value(match_name, vport))) {
           WARN_ICMD("fail to get_int_value", K(match_name), K(vport), K(ret));
-        } else if (!vip_addr.addr_.set_ipv4_addr(vip_string, static_cast<int32_t>(vport))) {
+        } else if (!vip_addr.addr_.set_ip_addr(vip_string, static_cast<int32_t>(vport))) {
           ret = OB_INVALID_ARGUMENT;
-          WARN_ICMD("fail to set_ipv4_addr", K(vip_string), K(vport), K(ret));
+          WARN_ICMD("fail to set_ip_addr", K(vip_string), K(vport), K(ret));
         } else if (!vip_addr.is_valid()) {
           ret = OB_INVALID_ARGUMENT;
           WARN_ICMD("invalid vip_addr", K(vip_addr), K(match_name), K(ret));
@@ -99,32 +100,38 @@ int ObShowVipHandler::main_handler(int event, void *data)
       }
 
       if (OB_SUCC(ret)) {
-        if (OB_FAIL(vt_cache.get(vip_addr, vip_tenant))) {
-          WARN_ICMD("fail to get vip_tenant", K(ret));
-          if (OB_ENTRY_NOT_EXIST == ret) {
-            //empty result
-            ret = OB_SUCCESS;
+        ObConfigItem tenant_item;
+        ObConfigItem cluster_item;
+        bool found = false;
+        vip_tenant.vip_addr_ = vip_addr;
+        if (OB_FAIL(get_global_config_processor().get_proxy_config_with_level(
+          vip_tenant.vip_addr_, "", "", "proxy_tenant_name", tenant_item, "LEVEL_VIP", found))) {
+          WARN_ICMD("get proxy tenant name config failed", K(vip_tenant.vip_addr_), K(ret));
+        } 
+        if (OB_SUCC(ret) && found) {
+          if (OB_FAIL(get_global_config_processor().get_proxy_config_with_level(
+            vip_tenant.vip_addr_, "", "", "rootservice_cluster_name", cluster_item, "LEVEL_VIP", found))) {
+            WARN_ICMD("get cluster name config failed", K(vip_tenant.vip_addr_), K(ret));
+          }
+        }
+        if (OB_SUCC(ret) && found) {
+          if (OB_FAIL(vip_tenant.set_tenant_cluster(tenant_item.str(), cluster_item.str()))) {
+            WARN_ICMD("set tenant and cluster name failed", K(tenant_item), K(cluster_item), K(ret));
+          } else if (OB_FAIL(dump_item(vip_tenant))) {
+            WARN_ICMD("fail to dump item", K(vip_tenant), K(ret));
           }
-        } else if (OB_FAIL(dump_item(vip_tenant))) {
-          WARN_ICMD("fail to dump item", K(vip_tenant), K(ret));
+        } else {
+          WARN_ICMD("fail to get vip_tenant", K(ret));
         }
       } else {
         ret = OB_ERR_OPERATOR_UNKNOWN;//return this errno
       }
     } else {
       //dump all vip tenant
-      ObVipTenantCache::VTHashMap *cache_map = NULL;
-      obsys::CRLockGuard guard(vt_cache.rwlock_);
-      if (OB_ISNULL(cache_map = vt_cache.get_cache_map())) {
-        ret = OB_ERR_UNEXPECTED;
-        WARN_ICMD("cache_map is null", K(ret));
-      } else {
-        for (ObVipTenantCache::VTHashMap::iterator it = cache_map->begin();
-             OB_SUCC(ret) && it != cache_map->end(); ++it) {
-          if (OB_FAIL(dump_item(*it))) {
-            WARN_ICMD("fail to dump item", K(*it), K(ret));
-          }
-        }
+      const char* select_sql = "SELECT a.vid, a.vip, a.vport, a.value, b.value FROM proxy_config as a, proxy_config as b "
+          "where a.name = 'proxy_tenant_nane' and b.name = 'rootservice_cluster_name';";
+      if (get_global_config_processor().execute(select_sql, ObShowVipHandler::sqlite3_callback, this)) {
+        WARN_ICMD("fail to execute sql", K(ret));
       }
     }
   }
@@ -180,6 +187,40 @@ int ObShowVipHandler::dump_item(const ObVipTenant &vip_tenant)
   return ret;
 }
 
+int ObShowVipHandler::sqlite3_callback(void *data, int argc, char **argv, char **column_name)
+{
+  int ret = OB_SUCCESS;
+  if (OB_UNLIKELY(NULL == data || NULL == argv || NULL == column_name || 5 != argc)) {
+    ret = OB_ERR_UNEXPECTED;
+    WARN_ICMD("argument is unexpected", K(argc), K(ret));
+  } else {
+    ObShowVipHandler *handler = reinterpret_cast<ObShowVipHandler*>(data);
+    char* vip;
+    int64_t vport = 0;
+    int64_t vid = -1;
+    ObVipTenant vip_tenant;
+    ObString tenant;
+    ObString cluster;
+    if (OB_UNLIKELY(NULL == argv[0] || NULL == argv[1] || NULL == argv[2] || NULL == argv[3] || NULL == argv[4])) {
+      ret = OB_ERR_UNEXPECTED;
+      WARN_ICMD("argument is unexpected", K(ret));
+    } else {
+      vid = atoi(argv[0]);
+      vip = argv[1];
+      vport = atoi(argv[2]);
+      tenant = argv[3];
+      cluster = argv[4];
+      vip_tenant.vip_addr_.set(vip, static_cast<int32_t>(vport), vid);
+      if (OB_FAIL(vip_tenant.set_tenant_cluster(tenant, cluster))) {
+        WARN_ICMD("fail to set tenant cluster", K(vip_tenant), K(ret));
+      } else if (OB_FAIL(handler->dump_item(vip_tenant))) {
+        WARN_ICMD("fail to dump item", K(vip_tenant), K(ret));
+      }
+    }
+  }
+  return ret;
+}
+
 static int show_vip_cmd_callback(ObContinuation *cont, ObInternalCmdInfo &info,
     ObMIOBuffer *buf, ObAction *&action)
 {
diff --git a/src/obproxy/cmd/ob_show_vip_handler.h b/src/obproxy/cmd/ob_show_vip_handler.h
index b02c9084..07f60b49 100644
--- a/src/obproxy/cmd/ob_show_vip_handler.h
+++ b/src/obproxy/cmd/ob_show_vip_handler.h
@@ -25,7 +25,8 @@ namespace obutils
 class ObShowVipHandler : public ObInternalCmdHandler
 {
 public:
-	ObShowVipHandler(event::ObContinuation *cont, event::ObMIOBuffer *buf, const ObInternalCmdInfo &info);
+  ObShowVipHandler(event::ObContinuation *cont, event::ObMIOBuffer *buf,
+                   const ObInternalCmdInfo &info);
   virtual ~ObShowVipHandler() {}
   int main_handler(int event, void *data);
 
@@ -33,6 +34,7 @@ class ObShowVipHandler : public ObInternalCmdHandler
   int dump_header();
   int dump_body();
   int dump_item(const ObVipTenant &vip_tenant);
+  static int sqlite3_callback(void *data, int argc, char **argv, char **column_name);
 
   DISALLOW_COPY_AND_ASSIGN(ObShowVipHandler);
 };
diff --git a/src/obproxy/dbconfig/grpc/ob_proxy_grpc_client.cpp b/src/obproxy/dbconfig/grpc/ob_proxy_grpc_client.cpp
index 0aa658bb..d2fdaf1d 100644
--- a/src/obproxy/dbconfig/grpc/ob_proxy_grpc_client.cpp
+++ b/src/obproxy/dbconfig/grpc/ob_proxy_grpc_client.cpp
@@ -156,15 +156,15 @@ int ObGrpcClient::fill_request_node(DiscoveryRequest &request)
 
     const char *is_sidecar = getenv("IS_SIDECAR");
     if (OB_NOT_NULL(is_sidecar) && OB_UNLIKELY(strncmp(is_sidecar, "false", strlen(is_sidecar)) == 0)) {// app is not in sidecar
-      char ipstr[OB_IP_STR_BUFF];
-      MEMSET(ipstr, 0, OB_IP_STR_BUFF);
+      char ipstr[MAX_IP_ADDR_LENGTH];
+      MEMSET(ipstr, 0, MAX_IP_ADDR_LENGTH);
 
       ObSEArray<ObStringKV, LABELS_NUMS> labels;
 
       char json[MAX_REQUEST_LABELS_LENGTH];
       MEMSET(json, 0, sizeof(json));
 
-      if (OB_FAIL(getip_from_nodeid(ipstr, OB_IP_STR_BUFF))) {
+      if (OB_FAIL(getip_from_nodeid(ipstr, MAX_IP_ADDR_LENGTH))) {
         LOG_WARN("can not get ip from node id", K(ret));
       } else if (OB_UNLIKELY(strlen(ipstr) == 0)) {
         ret = OB_ERR_UNEXPECTED;
@@ -227,7 +227,7 @@ int ObGrpcClient::getip_from_nodeid(char *ipstr, int64_t length)
     if (OB_SUCC(ret)) {
       if (OB_UNLIKELY(length < ip.length())) {
         ret = OB_SIZE_OVERFLOW;
-        LOG_WARN("IP string in node id is longer than OB_IP_STR_BUFF", K(length), K(ip.length()), K(ret));
+        LOG_WARN("IP string in node id is longer than MAX_IP_ADDR_LENGTH", K(length), K(ip.length()), K(ret));
       } else {
         memcpy(ipstr, ip.ptr(), ip.length());
         ipstr[ip.length()] = '\0';
@@ -321,7 +321,17 @@ int ObGrpcClient::to_json(ObIArray<obmysql::ObStringKV>& labels, char *json, int
 
 bool ObGrpcClient::sync_read(DiscoveryResponse &response)
 {
-  return stream_->Read(&response);
+  bool status = false;
+  int ret = OB_SUCCESS;
+  status = stream_->Read(&response);
+  if (!status) {
+    LOG_INFO("the stream has been closed, will rebuild the grpc client stream");
+    finish_rpc();
+    if (OB_FAIL(init_stream())) {
+      LOG_WARN("fail to init stream", K(ret));
+    }
+  }
+  return status;
 }
 
 void ObGrpcClient::finish_rpc()
diff --git a/src/obproxy/dbconfig/ob_proxy_db_config_info.cpp b/src/obproxy/dbconfig/ob_proxy_db_config_info.cpp
index c2e2ac01..be5030c6 100644
--- a/src/obproxy/dbconfig/ob_proxy_db_config_info.cpp
+++ b/src/obproxy/dbconfig/ob_proxy_db_config_info.cpp
@@ -1636,10 +1636,9 @@ int ObShardRule::get_physic_index(const SqlFieldResult &sql_result,
       const ObProxyShardRuleInfo &rule = rules.at(i);
       ObProxyExprCtx expr_ctx(physic_size, type, is_elastic_index, &allocator);
       ObProxyExpr *proxy_expr = rule.expr_;
-      ObObj result_obj;
       ObSEArray<ObObj, 4> result_array;
       int64_t tmp_index = OBPROXY_MAX_DBMESH_ID;
-
+      int64_t tmp_index_for_one_obj = OBPROXY_MAX_DBMESH_ID;
       LOG_DEBUG("begin to calc rule", K(rule));
 
       ObProxyExprCalcItem calc_item(const_cast<SqlFieldResult*>(&sql_result));
@@ -1654,16 +1653,23 @@ int ObShardRule::get_physic_index(const SqlFieldResult &sql_result,
           LOG_WARN("calc proxy expr failed", K(ret));
         }
       } else {
-        result_obj = result_array.at(0);
-        ObObj tmp_obj;
-        if (OB_FAIL(ObProxyFuncExpr::get_int_obj(result_obj, tmp_obj))) {
-          LOG_WARN("get int obj failed", K(result_obj), K(ret));
-        } else if (OB_FAIL(tmp_obj.get_int(tmp_index))) {
-          LOG_WARN("get int failed", K(ret));
-        } else {
-          if (tmp_index < 0 || tmp_index >= physic_size) {
-            ret = OB_EXPR_CALC_ERROR;
-            LOG_WARN("invalid index", K(tmp_index), K(physic_size), K(ret));
+        for(int64_t j = 0; OB_SUCC(ret) && j < result_array.count(); j++) {
+          ObObj& result_obj = result_array.at(j);
+          ObObj tmp_obj;
+          if (OB_FAIL(ObProxyFuncExpr::get_int_obj(result_obj, tmp_obj, allocator))) {
+            LOG_WARN("get int obj failed", K(result_obj), K(ret));
+          } else if (OB_FAIL(tmp_obj.get_int(tmp_index_for_one_obj))) {
+            LOG_WARN("get int failed", K(ret));
+          } else if (tmp_index_for_one_obj < 0 || tmp_index_for_one_obj >= physic_size) {
+              ret = OB_EXPR_CALC_ERROR;
+              LOG_WARN("invalid index", K(tmp_index_for_one_obj), K(physic_size), K(ret));
+          } else if (OBPROXY_MAX_DBMESH_ID == tmp_index) {
+            tmp_index = tmp_index_for_one_obj;
+          } else if (tmp_index != tmp_index_for_one_obj) {
+            ret = OB_ERR_DISTRIBUTED_NOT_SUPPORTED;
+            LOG_WARN("different physic index for one sharding key is not supported", K(tmp_index), K(last_index), K(ret));
+          } else {
+            //nothing
           }
         }
       }
@@ -1749,7 +1755,7 @@ int ObShardRule::get_physic_index_array(const SqlFieldResult &sql_result,
       for (int64_t i = 0; OB_SUCC(ret) && i < result_obj_array.count(); i++) {
         ObObj tmp_obj;
         int64_t tmp_index;
-        if (OB_FAIL(ObProxyFuncExpr::get_int_obj(result_obj_array.at(i), tmp_obj))) {
+        if (OB_FAIL(ObProxyFuncExpr::get_int_obj(result_obj_array.at(i), tmp_obj, allocator))) {
           LOG_WARN("get int obj failed", K(ret), K(result_obj_array.at(i)));
         } else if (OB_FAIL(tmp_obj.get_int(tmp_index))) {
           LOG_WARN("get int failed", K(ret));
@@ -2009,6 +2015,91 @@ int ObDbConfigLogicDb::get_shard_router(const ObString &tb_name, ObShardRouter *
   return ret;
 }
 
+int ObDbConfigLogicDb::get_first_group_shard_connector(ObShardConnector *&shard_conn, int64_t es_id,
+                                                       bool is_read_stmt, ObTestLoadType testload_type)
+{
+  int ret = OB_SUCCESS;
+
+  ObShardTpo *shard_tpo = NULL;
+  ObGroupCluster *gc_info = NULL;
+
+  if (OB_FAIL(get_shard_tpo(shard_tpo))) {
+    LOG_WARN("fail to get shard tpo info", K(ret));
+  } else if (OB_ISNULL(shard_tpo)) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("shard tpo info is null", K(ret));
+  } else if (is_single_shard_db_table()) {
+    ObShardTpo::GCHashMap::iterator it = (const_cast<ObShardTpo::GCHashMap &>(shard_tpo->gc_map_)).begin();
+    gc_info = &(*it);
+  } else {
+    ObShardRule *logic_tb_info = NULL;
+    {
+      ObDbConfigCache &dbconfig_cache = get_global_dbconfig_cache();
+      obsys::CRLockGuard guard(dbconfig_cache.rwlock_);
+      ObDbConfigChildArrayInfo<ObShardRouter>::CCRHashMap &map = const_cast<ObDbConfigChildArrayInfo<ObShardRouter>::CCRHashMap &>(sr_array_.ccr_map_);
+      for (ObDbConfigChildArrayInfo<ObShardRouter>::CCRHashMap::iterator it = map.begin(); it != map.end(); ++it) {
+        ObShardRouter::MarkedRuleHashMap &mr_map = it->mr_map_;
+        for (ObShardRouter::MarkedRuleHashMap::iterator sub_it = mr_map.begin();
+             sub_it != mr_map.end(); ++sub_it) {
+          logic_tb_info = &(*sub_it);
+          break;
+        }
+      }
+    }
+
+    if (OB_SUCC(ret)) {
+      char real_database_name[OB_MAX_DATABASE_NAME_LENGTH];
+      if (OB_FAIL(logic_tb_info->get_real_name_by_index(logic_tb_info->db_size_, logic_tb_info->db_suffix_len_, 0,
+                                                        logic_tb_info->db_prefix_.config_string_,
+                                                        logic_tb_info->db_tail_.config_string_,
+                                                        real_database_name, OB_MAX_DATABASE_NAME_LENGTH))) {
+        LOG_WARN("fail to get real group name", KPC(logic_tb_info), K(ret));
+      } else if (OB_FAIL(shard_tpo->get_group_cluster(ObString::make_string(real_database_name), gc_info))) {
+        LOG_DEBUG("group does not exist", "phy_db_name", real_database_name, K(ret));
+      } else if (OB_ISNULL(gc_info)) {
+        ret = OB_ERR_UNEXPECTED;
+        LOG_WARN("group cluster info is null", "phy_db_name", real_database_name, K(ret));
+      }
+    }
+  }
+
+  if (OB_SUCC(ret)) {
+    // Calculate es_id
+    int64_t es_size = gc_info->get_es_size();
+    ObString shard_name;
+    if (-1 == es_id || OBPROXY_MAX_DBMESH_ID == es_id) {
+      if (OB_FAIL(gc_info->get_elastic_id_by_weight(es_id, is_read_stmt))) {
+        LOG_WARN("fail to get eid by read weight", KPC(gc_info));
+      } else {
+        LOG_DEBUG("succ to get eid by weight", K(es_id));
+      }
+    } else if (OB_UNLIKELY(es_id >= es_size)) {
+      ret = OB_EXPR_CALC_ERROR;
+      LOG_WARN("es index is larger than elastic array", K(es_id), K(es_size), K(ret));
+    }
+  }
+
+  if (OB_SUCC(ret)) {
+    ObString shard_name;
+    if (FALSE_IT(shard_name = gc_info->get_shard_name_by_eid(es_id))) {
+    } else if (TESTLOAD_NON != testload_type) {
+      if (OB_FAIL(get_testload_shard_connector(shard_name, testload_prefix_.config_string_, shard_conn))) {
+        LOG_WARN("testload shard connector not exist", "testload_type", get_testload_type_str(testload_type),
+                 K(shard_name), "testload_prefix", testload_prefix_, K(ret));
+      }
+    } else if (OB_FAIL(get_shard_connector(shard_name, shard_conn))) {
+      LOG_WARN("shard connector does not exist", K(shard_name), K(ret));
+    }
+  }
+
+  if (NULL != shard_tpo) {
+    shard_tpo->dec_ref();
+    shard_tpo = NULL;
+  }
+
+  return ret;
+}
+
 int ObDbConfigLogicDb::get_all_shard_table(ObIArray<ObString> &all_table)
 {
   int ret = OB_SUCCESS;
@@ -3729,7 +3820,8 @@ int ObDbConfigLogicDb::get_shard_table_info(const ObString &table_name,
                                             char *real_table_name, int64_t tb_name_len,
                                             int64_t &group_index, int64_t &tb_index, int64_t &es_index,
                                             const ObString &hint_table, ObTestLoadType testload_type,
-                                            const bool is_read_stmt)
+                                            const bool is_read_stmt,
+                                            const int64_t last_es_index /*OBPROXY_MAX_DBMESH_ID*/)
 {
   int ret = OB_SUCCESS;
 
@@ -3766,7 +3858,12 @@ int ObDbConfigLogicDb::get_shard_table_info(const ObString &table_name,
     bool is_elastic_index = true;
     ObString shard_name;
     if (-1 == es_index || (OBPROXY_MAX_DBMESH_ID == es_index && logic_tb_info->es_rules_.empty())) {
-      if (OB_FAIL(gc_info->get_elastic_id_by_weight(es_index, is_read_stmt))) {
+      if (is_read_stmt
+          && (last_es_index >= 0)
+          && (last_es_index < es_size)) {
+        //In multiple statements, the read request can use the effective es id of the previous statement
+        es_index = last_es_index;
+      } else if (OB_FAIL(gc_info->get_elastic_id_by_weight(es_index, is_read_stmt))) {
         LOG_WARN("fail to get eid by read weight", KPC(gc_info));
       } else {
         LOG_DEBUG("succ to get eid by weight", K(es_index));
@@ -3850,7 +3947,7 @@ int ObDbConfigLogicDb::get_single_table_info(const ObString &table_name,
                                              char *real_table_name, int64_t tb_name_len,
                                              int64_t &group_id, int64_t &table_id, int64_t &es_id,
                                              const ObString &hint_table, ObTestLoadType testload_type,
-                                             const bool is_read_stmt)
+                                             const bool is_read_stmt, const int64_t last_es_id/*OBPROXY_MAX_DBMESH_ID*/)
 {
   int ret = OB_SUCCESS;
 
@@ -3871,7 +3968,12 @@ int ObDbConfigLogicDb::get_single_table_info(const ObString &table_name,
     const ObGroupCluster &gc_info = *it;
     int64_t es_size = gc_info.get_es_size();
     if (es_id < 0 || OBPROXY_MAX_DBMESH_ID == es_id) {
-      if (OB_FAIL(gc_info.get_elastic_id_by_weight(es_id, is_read_stmt))) {
+      if (is_read_stmt
+          && (last_es_id >= 0)
+          && (last_es_id < es_size)) {
+        //In multiple statements, the read request can use the effective es id of the previous statement
+        es_id = last_es_id;
+      } if (OB_FAIL(gc_info.get_elastic_id_by_weight(es_id, is_read_stmt))) {
         LOG_WARN("fail to get random eid", K(gc_info));
       }
     } else if (OB_UNLIKELY(es_id >= es_size)) {
@@ -4557,8 +4659,8 @@ int ObDbConfigLogicDb::get_table_name_by_index(ObSqlParseResult &parse_result,
 {
   int ret = OB_SUCCESS;
 
-  ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(parse_result.get_proxy_stmt());
-  ObProxySelectStmt::ExprMap &table_exprs_map = select_stmt->get_table_exprs_map();
+  ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(parse_result.get_proxy_stmt());
+  ObProxyDMLStmt::ExprMap &table_exprs_map = dml_stmt->get_table_exprs_map();
   SqlFieldResult &sql_result = parse_result.get_sql_filed_result();
   char real_table_name[OB_MAX_TABLE_NAME_LENGTH];
 
@@ -4570,8 +4672,8 @@ int ObDbConfigLogicDb::get_table_name_by_index(ObSqlParseResult &parse_result,
 
   for (int64_t i = 0; OB_SUCC(ret) && i < table_index_array.count(); i++) {
     int64_t tb_index = table_index_array.at(i);
-    ObProxySelectStmt::ExprMap::iterator iter = table_exprs_map.begin();
-    ObProxySelectStmt::ExprMap::iterator end = table_exprs_map.end();
+    ObProxyDMLStmt::ExprMap::iterator iter = table_exprs_map.begin();
+    ObProxyDMLStmt::ExprMap::iterator end = table_exprs_map.end();
     table_name_map_wrapper.reuse();
 
     for (; OB_SUCC(ret) && iter != end; iter++) {
diff --git a/src/obproxy/dbconfig/ob_proxy_db_config_info.h b/src/obproxy/dbconfig/ob_proxy_db_config_info.h
index 7465e7e4..faf21f07 100644
--- a/src/obproxy/dbconfig/ob_proxy_db_config_info.h
+++ b/src/obproxy/dbconfig/ob_proxy_db_config_info.h
@@ -936,7 +936,8 @@ class ObDbConfigLogicDb : public ObDbConfigChild
                             char *real_table_name, int64_t tb_name_len,
                             int64_t &group_id, int64_t &table_id, int64_t &es_id,
                             const common::ObString &hint_table,
-                            ObTestLoadType testload_type, const bool is_read_stmt);
+                            ObTestLoadType testload_type, const bool is_read_stmt,
+                            const int64_t last_es_id = OBPROXY_MAX_DBMESH_ID);
   int get_shard_table_info(const common::ObString &table_name,
                            obutils::SqlFieldResult &sql_result,
                            ObShardConnector *&shard_conn,
@@ -944,7 +945,8 @@ class ObDbConfigLogicDb : public ObDbConfigChild
                            char *real_table_name, int64_t tb_name_len,
                            int64_t &group_index, int64_t &tb_index, int64_t &es_index,
                            const common::ObString &hint_table,
-                           ObTestLoadType testload_type, const bool is_read_stmt);
+                           ObTestLoadType testload_type, const bool is_read_stmt,
+                           const int64_t last_es_index = OBPROXY_MAX_DBMESH_ID);
   int get_shard_prop(const common::ObString & shard_name,
                       ObShardProp* &shard_prop);
   int get_real_table_name(const ObString &table_name, obutils::SqlFieldResult &sql_result,
@@ -968,6 +970,8 @@ class ObDbConfigLogicDb : public ObDbConfigChild
                                    int64_t es_index,
                                    common::ObIArray<int64_t> &group_index_array,
                                    common::ObIArray<ObShardConnector*> &shard_connector_array);
+  int get_first_group_shard_connector(ObShardConnector *&shard_conn, int64_t es_id,
+                                      bool is_read_stmt, ObTestLoadType testload_type);
   int get_table_name_by_index(obutils::ObSqlParseResult &parse_result,
                               ObTestLoadType testload_type,
                               ObIAllocator &allocator,
diff --git a/src/obproxy/driver/c/Makemodule.am b/src/obproxy/driver/c/Makemodule.am
new file mode 100644
index 00000000..ffb8c232
--- /dev/null
+++ b/src/obproxy/driver/c/Makemodule.am
@@ -0,0 +1,3 @@
+obproxy_c_driver_sources:=\
+obproxy/driver/c/ob_proxy_vc_c.h\
+obproxy/driver/c/ob_proxy_vc_c.cpp
\ No newline at end of file
diff --git a/src/obproxy/driver/c/ob_proxy_vc_c.cpp b/src/obproxy/driver/c/ob_proxy_vc_c.cpp
new file mode 100644
index 00000000..b5d8e17f
--- /dev/null
+++ b/src/obproxy/driver/c/ob_proxy_vc_c.cpp
@@ -0,0 +1,231 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#include "ob_proxy_vc_c.h"
+#include "proxy/client/ob_driver_client.h"
+#include "ob_proxy_init.h"
+#include "lib/oblog/ob_log.h"
+#include "lib/objectpool/ob_concurrency_objpool.h"
+
+#include <errno.h>
+
+using namespace oceanbase::common;
+using namespace oceanbase::obproxy;
+using namespace oceanbase::obproxy::proxy;
+
+int ob_proxy_vc_c_init(const char *config, void **p_driver_client)
+{
+  int ret = OB_SUCCESS;
+  ObDriverClient *driver_client = NULL;
+  
+  if (OB_ISNULL(config) || OB_ISNULL(p_driver_client)) {
+    ret = OB_INVALID_ARGUMENT;
+    MPRINT("invalid argument config=%p, p_driver_client=%p, ret=%d", config, p_driver_client, ret);
+  } else if (OB_FAIL(init_obproxy_client(config))) {
+    MPRINT("init obproxy client failed, ret=%d", ret);
+  } else if (OB_ISNULL(driver_client = new(std::nothrow) ObDriverClient())) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "driver client is null unexpected", K(ret));
+  } else if (OB_FAIL(driver_client->init())) {
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "driver client init failed", K(ret));
+  } else {
+    *p_driver_client = static_cast<void *>(driver_client);
+    OBPROXY_DRIVER_CLIENT_LOG(DEBUG, "create driver_client success", KP(driver_client));
+  }
+
+  if(OB_FAIL(ret) && OB_NOT_NULL(driver_client)) {
+    delete driver_client;
+  }
+
+  return ret;
+}
+
+int ob_proxy_vc_c_connect(void *driver_client_handle, int64_t conn_timeout, int64_t sock_timeout)
+{
+  int ret = OB_SUCCESS;
+  ObDriverClient *driver_client;
+
+  if (OB_ISNULL(driver_client_handle) || conn_timeout < 0 || sock_timeout < 0) {
+    ret = OB_INVALID_ARGUMENT;
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "invalid argument", KP(driver_client_handle), K(conn_timeout), K(sock_timeout), K(ret));
+  } else {
+    driver_client = static_cast<ObDriverClient *>(driver_client_handle);
+    driver_client->set_connect_timeout(conn_timeout);
+
+    if (conn_timeout == 0 && OB_FAIL(driver_client->sync_connect())) {
+      OBPROXY_DRIVER_CLIENT_LOG(WARN, "driver client connect failed", K(ret));
+    } else if (conn_timeout > 0 && OB_FAIL(driver_client->sync_connect_with_timeout())) {
+      OBPROXY_DRIVER_CLIENT_LOG(WARN, "driver client connect with timeout failed", K(conn_timeout), K(ret));
+    } else {
+      driver_client->set_send_timeout(sock_timeout);
+      driver_client->set_recv_timeout(sock_timeout);
+      OBPROXY_DRIVER_CLIENT_LOG(DEBUG, "driver client connect success", K(driver_client));
+    }   
+  }
+
+  return ret;
+}
+
+int ob_proxy_vc_c_recv(void *driver_client_handle, char *buffer, int64_t offset, int64_t mlen, int64_t *recv_len, int64_t flag)
+{
+  int ret = OB_SUCCESS;
+  int64_t rlen = 0;
+  ObDriverClient *driver_client;
+  UNUSED(flag);
+
+  if (OB_ISNULL(driver_client_handle) || OB_ISNULL(buffer) || OB_ISNULL(recv_len)) {
+    ret = OB_INVALID_ARGUMENT;
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "invalid argument", KP(driver_client_handle), K(buffer), K(recv_len), K(ret));
+  } else {
+    driver_client = static_cast<ObDriverClient *>(driver_client_handle);
+    if (OB_FAIL(driver_client->sync_recv_with_timeout(buffer + offset, mlen, rlen))) {
+      OBPROXY_DRIVER_CLIENT_LOG(WARN, "sync recv failed", K(ret));
+    } else {
+      if (rlen < 0) {
+        switch (errno) {
+          case ECONNRESET:
+          case EPIPE:
+            OBPROXY_DRIVER_CLIENT_LOG(WARN, "Connection reset", "errno", errno);
+            break;
+          case EBADF:
+            OBPROXY_DRIVER_CLIENT_LOG(WARN, "Socket closed", "errno", errno);
+            break;
+          case EINTR:
+            OBPROXY_DRIVER_CLIENT_LOG(WARN, "Operation interrupted", "errno", errno);
+            break;
+          default:
+            OBPROXY_DRIVER_CLIENT_LOG(WARN, "socket read error", "errno", errno);
+            break;
+        }
+        ret = OB_ERR_UNEXPECTED;
+      } else if (rlen == 0) {
+        ret = OB_ERR_UNEXPECTED;
+        OBPROXY_DRIVER_CLIENT_LOG(WARN, "peer close", KP(driver_client), K(ret));
+      } else {
+        OBPROXY_DRIVER_CLIENT_LOG(DEBUG, "read success", K(rlen));
+        *recv_len = rlen;
+      }
+    }
+  }
+ 
+  return ret;
+}
+
+int ob_proxy_vc_c_send(void *driver_client_handle, const char *buffer, int64_t offset, int64_t mlen, int64_t *send_len, int64_t flag)
+{
+  int ret = OB_SUCCESS;
+  int64_t wlen = 0;
+  ObDriverClient *driver_client;
+  UNUSED(flag);
+
+  if (OB_ISNULL(driver_client_handle) || OB_ISNULL(buffer) || OB_ISNULL(send_len)) {
+    ret = OB_INVALID_ARGUMENT;
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "invalid argument", KP(driver_client_handle), K(buffer), K(send_len), K(ret));
+  } else {
+    driver_client = static_cast<ObDriverClient *>(driver_client_handle);
+
+    if (OB_FAIL(driver_client->sync_send_with_timeout(buffer + offset, mlen, wlen))) {
+      ret = OB_ERR_UNEXPECTED; //send error;
+      OBPROXY_DRIVER_CLIENT_LOG(WARN, "sync_send_with_timeout failed", K(wlen), K(ret));
+    } else {
+      if (wlen > 0) {
+        OBPROXY_DRIVER_CLIENT_LOG(DEBUG, "sync write success", K(wlen));
+        *send_len = wlen;
+      } else {
+        ret = ob_get_sys_errno();
+        if (errno == ECONNRESET) {
+          OBPROXY_DRIVER_CLIENT_LOG(WARN, "wlen is unexpected, connection reset", K(wlen), K(ret));
+        } else {
+          OBPROXY_DRIVER_CLIENT_LOG(WARN, "wlen is unexpected, write failed", K(wlen), K(ret));
+        }
+      }
+    }
+  }
+
+  return ret;
+}
+
+int ob_proxy_vc_c_close(void *driver_client_handle)
+{
+  int ret = OB_SUCCESS;
+  ObDriverClient *driver_client;
+
+  if (OB_ISNULL(driver_client_handle)) {
+    ret = OB_INVALID_ARGUMENT;
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "invalid argument", KP(driver_client_handle), K(ret));
+  } else {
+    OBPROXY_DRIVER_CLIENT_LOG(DEBUG, "free driver client", KP(driver_client_handle));
+    driver_client = static_cast<ObDriverClient *>(driver_client_handle);
+    delete driver_client;
+    driver_client = NULL;
+  }
+
+  return ret;
+}
+
+int ob_proxy_vc_set_timeout(void *driver_client_handle, int type, int timeout)
+{
+  int ret = OB_SUCCESS;
+  ObDriverClient *driver_client;
+  const int C_DRIVER_CONNECT_TIMEOUT = 0;
+  const int C_DRIVER_READ_TIMEOUT = 1;
+  const int C_DRIVER_WRITE_TIMEOUT = 2;
+  const int C_DRIVER_TIMEOUT_MAX = 3;
+
+  if (OB_ISNULL(driver_client_handle) || type < 0 || C_DRIVER_TIMEOUT_MAX <= type) {
+    ret = OB_INVALID_ARGUMENT;
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "invalid argument", KP(driver_client_handle), K(type), K(ret));
+  } else {
+    driver_client = static_cast<ObDriverClient *>(driver_client_handle);
+
+    if (C_DRIVER_CONNECT_TIMEOUT == type) {
+      driver_client->set_connect_timeout(timeout);
+    } else if (C_DRIVER_READ_TIMEOUT == type) {
+      driver_client->set_recv_timeout(timeout);
+    } else if (C_DRIVER_WRITE_TIMEOUT == type) {
+      driver_client->set_send_timeout(timeout);
+    }
+
+    OBPROXY_DRIVER_CLIENT_LOG(DEBUG, "driver client set timeout succ", K(type), K(timeout));
+  }
+
+  return ret;
+}
+
+int ob_proxy_vc_get_timeout(void *driver_client_handle, int type, int *timeout)
+{
+  int ret = OB_SUCCESS;
+  ObDriverClient *driver_client;
+  const int C_DRIVER_CONNECT_TIMEOUT = 0;
+  const int C_DRIVER_READ_TIMEOUT = 1;
+  const int C_DRIVER_WRITE_TIMEOUT = 2;
+  const int C_DRIVER_TIMEOUT_MAX = 3;
+
+  if (OB_ISNULL(driver_client_handle) || OB_ISNULL(timeout) || type < C_DRIVER_CONNECT_TIMEOUT || C_DRIVER_TIMEOUT_MAX <= type) {
+    ret = OB_INVALID_ARGUMENT;
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "invalid argument", KP(driver_client_handle), KP(timeout), K(type), K(ret));
+  } else {
+    driver_client = static_cast<ObDriverClient *>(driver_client_handle);
+
+    if (C_DRIVER_CONNECT_TIMEOUT == type) {
+      *timeout = static_cast<int>(driver_client->get_connect_timeout());
+    } else if (C_DRIVER_READ_TIMEOUT == type) {
+      *timeout = static_cast<int>(driver_client->get_recv_timeout());
+    } else if (C_DRIVER_WRITE_TIMEOUT == type) {
+      *timeout = static_cast<int>(driver_client->get_send_timeout());
+    }
+
+    OBPROXY_DRIVER_CLIENT_LOG(DEBUG, "driver client get timeout succ", K(type), "timeout", *timeout);
+  }
+
+  return ret;
+}
\ No newline at end of file
diff --git a/src/obproxy/driver/c/ob_proxy_vc_c.h b/src/obproxy/driver/c/ob_proxy_vc_c.h
new file mode 100644
index 00000000..80f37d8a
--- /dev/null
+++ b/src/obproxy/driver/c/ob_proxy_vc_c.h
@@ -0,0 +1,98 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#ifndef _OB_OPROXY_VC_C_H
+#define _OB_OPROXY_VC_C_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief 
+ *  libobclient calls this function to init obproxy and get driver_client handle 
+ * @param config          obproxy config string
+ * @param driver_client   point to driver_client handle
+ * @return int            OB_SUCCESS means success and other means failure
+ */
+int ob_proxy_vc_c_init(const char *config, void **driver_client);
+
+/**
+ * @brief 
+ *  libobclient calls this function to connect to obproxy
+ * @param driver_client   driver_client handle
+ * @param conn_timeout    connection timeout
+ * @param sock_timeout    socket timeout
+ * @return int 
+ */
+int ob_proxy_vc_c_connect(void *driver_client, int64_t conn_timeout, int64_t sock_timeout);
+
+/**
+ * @brief 
+ *  libobclient calls this function to receive data from obproxy 
+ * @param driver_client   driver_client handle
+ * @param buffer          receive buffer
+ * @param offset          buffer offset
+ * @param mlen            max receive length
+ * @param recv_len        point to receive length
+ * @param flag            receive flag
+ * @return int 
+ */
+int ob_proxy_vc_c_recv(void *driver_client, char *buffer, int64_t offset, int64_t mlen, int64_t *recv_len, int64_t flag);
+
+/**
+ * @brief 
+ *  libobclient calls this function to send data to obproxy
+ * @param driver_client   driver_client handle
+ * @param buffer          send buffer
+ * @param offset          buffer offset
+ * @param mlen            send buffer len
+ * @param send_len        point to send length
+ * @param flag            send flag
+ * @return int 
+ */
+int ob_proxy_vc_c_send(void *driver_client, const char *buffer, int64_t offset, int64_t mlen, int64_t *send_len, int64_t flag);
+
+/**
+ * @brief 
+ *  libobclient calls this function to close driver client, but not stop obproxy service
+ * @param driver_client   driver_client handle
+ * @return int 
+ */
+int ob_proxy_vc_c_close(void *driver_client);
+
+/**
+ * @brief 
+ *  libobclient calls this function to set timeout
+ * @param driver_client   driver_client handle
+ * @param type            type for timeout
+ * @param timeout         ms
+ * @return int 
+ */
+int ob_proxy_vc_set_timeout(void *driver_client, int type, int timeout);
+
+/**
+ * @brief 
+ *  libobclient calls this function to get timeout 
+ * @param driver_client   driver_client handle
+ * @param type            type for timeout
+ * @param timeout         ms
+ * @return int 
+ */
+int ob_proxy_vc_get_timeout(void *driver_client_handle, int type, int *timeout);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+#endif /*_OB_OPROXY_VC_JNI_H */
\ No newline at end of file
diff --git a/src/obproxy/engine/Makemodule.am b/src/obproxy/engine/Makemodule.am
index 75b4e148..44a328eb 100644
--- a/src/obproxy/engine/Makemodule.am
+++ b/src/obproxy/engine/Makemodule.am
@@ -11,4 +11,6 @@ obproxy/engine/ob_proxy_operator_agg.cpp\
 obproxy/engine/ob_proxy_operator_table_scan.h\
 obproxy/engine/ob_proxy_operator_table_scan.cpp\
 obproxy/engine/ob_proxy_operator_async_task.h\
-obproxy/engine/ob_proxy_operator_async_task.cpp
+obproxy/engine/ob_proxy_operator_async_task.cpp\
+obproxy/engine/ob_proxy_operator_cont.h\
+obproxy/engine/ob_proxy_operator_cont.cpp
diff --git a/src/obproxy/engine/ob_proxy_operator_agg.cpp b/src/obproxy/engine/ob_proxy_operator_agg.cpp
index 959d9f4f..2f3d9f0f 100644
--- a/src/obproxy/engine/ob_proxy_operator_agg.cpp
+++ b/src/obproxy/engine/ob_proxy_operator_agg.cpp
@@ -604,7 +604,7 @@ int ObProxyStreamAggOp::handle_response_result(void *data, bool &is_final, ObPro
     ResultRow *row = NULL;
     while (OB_SUCC(ret) && OB_SUCC(opres->next(row))) {
       ObProxyGroupUnit group_unit(allocator_);
-      if (OB_FAIL(group_unit.init(row, group_exprs))) {
+      if (OB_FAIL(group_unit.init(row, result_fields_, group_exprs))) {
         LOG_WARN("fail to init group unit", K(ret));
       } else if (NULL == current_group_unit_) {
         if (OB_FAIL(ObProxyGroupUnit::create_group_unit(allocator_, current_group_unit_, group_unit))) {
@@ -732,7 +732,7 @@ int ObProxyMemMergeAggOp::handle_response_result(void *data, bool &is_final, ObP
     while (OB_SUCC(ret) && OB_SUCC(opres->next(row))) {
       ObProxyGroupUnit group_unit(allocator_);
       ObProxyGroupUnit *current_group_unit = NULL;
-      if (OB_FAIL(group_unit.init(row, group_exprs))) {
+      if (OB_FAIL(group_unit.init(row, result_fields_, group_exprs))) {
         LOG_WARN("fail to init group unit", K(ret));
       } else if (OB_FAIL(group_unit_map_.get_refactored(group_unit, current_group_unit))) {
         if (OB_HASH_NOT_EXIST == ret) {
@@ -827,7 +827,8 @@ ObProxyGroupUnit::~ObProxyGroupUnit()
   }
 }
 
-int ObProxyGroupUnit::init(ResultRow *row, const ObIArray<ObProxyGroupItem*>& group_exprs)
+int ObProxyGroupUnit::init(ResultRow *row, ResultFields *result_fields,
+                           const ObIArray<ObProxyGroupItem*>& group_exprs)
 {
   int ret = OB_SUCCESS;
 
@@ -837,11 +838,21 @@ int ObProxyGroupUnit::init(ResultRow *row, const ObIArray<ObProxyGroupItem*>& gr
   for (int64_t i = 0; OB_SUCC(ret) && i < group_exprs.count(); i++) {
     if (OB_FAIL(group_exprs.at(i)->calc(ctx, calc_item, group_values_))) {
       LOG_WARN("fail to calc group exprs", K(ret));
+    } else {
+      int64_t index = group_exprs.at(i)->get_expr()->get_index();
+      if (-1 != index) {
+        ObObj &value = group_values_.at(i);
+        if (OB_FAIL(change_sql_value(value, result_fields->at(index), &allocator_))) {
+          LOG_WARN("fail to change sql value", K(value),
+                   "filed", result_fields->at(index), K(ret));
+        }
+      }
     }
   }
 
   if (OB_SUCC(ret)) {
     row_ = row;
+    result_fields_ = result_fields;
   }
 
   return ret;
@@ -880,6 +891,7 @@ int ObProxyGroupUnit::assign(const ObProxyGroupUnit &group_unit)
     LOG_WARN("fail to assign group value", K(ret));
   } else {
     row_ = group_unit.get_row();
+    result_fields_ = group_unit.get_result_fields();
   }
 
   return ret;
@@ -898,8 +910,19 @@ int ObProxyGroupUnit::do_aggregate(ResultRow *row)
     agg_values.reuse();
     if (OB_FAIL(agg_unit->get_agg_expr()->calc(ctx, calc_item, agg_values))) {
       LOG_WARN("fail to calc agg expr", K(ret));
-    } else if (OB_FAIL(agg_unit->merge(agg_values))) {
-      LOG_WARN("fail to merge agg value", K(ret));
+    } else {
+      int64_t index = agg_unit->get_agg_expr()->get_index();
+      if (-1 != index) {
+        ObObj &value = agg_values.at(0);
+        if (OB_FAIL(change_sql_value(value, result_fields_->at(index), &allocator_))) {
+          LOG_WARN("fail to change sql value", K(value),
+                   "filed", result_fields_->at(index), K(ret));
+        }
+      }
+
+      if (OB_SUCC(ret) && OB_FAIL(agg_unit->merge(agg_values))) {
+        LOG_WARN("fail to merge agg value", K(ret));
+      }
     }
   }
 
diff --git a/src/obproxy/engine/ob_proxy_operator_agg.h b/src/obproxy/engine/ob_proxy_operator_agg.h
index 223d8496..82792f3f 100644
--- a/src/obproxy/engine/ob_proxy_operator_agg.h
+++ b/src/obproxy/engine/ob_proxy_operator_agg.h
@@ -350,12 +350,13 @@ class ObProxyGroupUnit
 {
 public:
   ObProxyGroupUnit(common::ObIAllocator &allocator)
-    : allocator_(allocator), row_(NULL),
+    : allocator_(allocator), row_(NULL), result_fields_(NULL),
       group_values_(ObModIds::OB_SE_ARRAY_ENGINE, ENGINE_ARRAY_NEW_ALLOC_SIZE),
       agg_units_(ObModIds::OB_SE_ARRAY_ENGINE, ENGINE_ARRAY_NEW_ALLOC_SIZE) {}
   ~ObProxyGroupUnit();
 
-  int init(ResultRow *row, const common::ObIArray<ObProxyGroupItem*>& group_by_exprs);
+  int init(ResultRow *row, ResultFields *result_fields,
+           const common::ObIArray<ObProxyGroupItem*>& group_by_exprs);
 
   uint64_t hash() const;
   bool operator==(const ObProxyGroupUnit &group_unit) const;
@@ -366,6 +367,7 @@ class ObProxyGroupUnit
   int set_agg_value();
 
   ResultRow *get_row() const { return row_; }
+  ResultFields *get_result_fields() const { return result_fields_; }
   const common::ObIArray<ObObj>& get_group_values() const { return group_values_; }
   const common::ObIArray<ObProxyAggUnit*>& get_agg_units() { return agg_units_;; }
 
@@ -385,6 +387,7 @@ class ObProxyGroupUnit
 private:
   common::ObIAllocator &allocator_;
   ResultRow *row_;
+  ResultFields *result_fields_;
   common::ObSEArray<ObObj, 4> group_values_;
   common::ObSEArray<ObProxyAggUnit*, 4> agg_units_;
 };
diff --git a/src/obproxy/engine/ob_proxy_operator_cont.cpp b/src/obproxy/engine/ob_proxy_operator_cont.cpp
new file mode 100644
index 00000000..edb49005
--- /dev/null
+++ b/src/obproxy/engine/ob_proxy_operator_cont.cpp
@@ -0,0 +1,301 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#define USING_LOG_PREFIX PROXY
+
+#include "ob_proxy_operator_cont.h"
+#include "lib/oblog/ob_log_module.h"
+
+using namespace oceanbase::common;
+using namespace oceanbase::obproxy::event;
+using namespace oceanbase::obproxy::obutils;
+
+namespace oceanbase
+{
+namespace obproxy
+{
+namespace engine
+{
+
+int ObProxyOperatorCont::init(ObProxyOperator* operator_root, uint8_t seq, const int64_t timeout_ms)
+{
+  int ret = OB_SUCCESS;
+
+  if (OB_UNLIKELY(NULL != buf_)) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("unexpected buf is not null", K(ret));
+  } else if (OB_ISNULL(buf_ = new_empty_miobuffer())) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    LOG_WARN("fail to new_empty_miobuffer for buf", K(ret));
+  } else if (OB_ISNULL(buf_reader_ = buf_->alloc_reader())) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("fail to allocate buffer reader", K(ret));
+  } else {
+    operator_root_ = operator_root;
+    timeout_ms_ = timeout_ms;
+    seq_ = seq;
+  }
+
+  return ret;
+}
+
+int ObProxyOperatorCont::main_handler(int event, void *data)
+{
+  int ret = OB_SUCCESS;
+
+  if (NULL == execute_thread_) {
+    execute_thread_ = &self_ethread();
+  }
+
+  switch (event) {
+    case EVENT_INTERVAL: {
+      timeout_action_ = NULL;
+      // If it has been canceled, then the underlying operator has been released,
+      // and here we need to set pending_action_ to NULL
+      if (action_.cancelled_) {
+        pending_action_ = NULL;
+      }
+
+      if (OB_FAIL(handle_timeout())) {
+        LOG_WARN("fail to handle timeout");
+      }
+      break;
+    }
+    case EVENT_IMMEDIATE: {
+      pending_action_ = NULL;
+      if (OB_FAIL(cancel_timeout_action())) {
+        LOG_WARN("fail to cancel_timeout_action", K(ret));
+      } else if (OB_FAIL(handle_event_start())) {
+        LOG_INFO("fail to handle event start", K(ret));
+      } else if (OB_FAIL(schedule_timeout())) {
+        LOG_WARN("fail to schedule timeout action", K(ret));
+      }
+      break;
+    }
+    case VC_EVENT_READ_COMPLETE: {
+      pending_action_ = NULL;
+      if (OB_FAIL(cancel_timeout_action())) {
+        LOG_WARN("fail to cancel_timeout_action", K(ret));
+      } else if (OB_FAIL(handle_event_complete(data))) {
+        LOG_WARN("fail to handle event complete", K(ret));
+      }
+      break;
+    }
+    case ASYNC_PROCESS_INFORM_OUT_EVENT: {
+      pending_action_ = NULL;
+      if (OB_FAIL(cancel_timeout_action())) {
+        LOG_WARN("fail to cancel_timeout_action", K(ret));
+      } else if (OB_FAIL(handle_event_inform_out())) {
+        LOG_WARN("fail to handle inform out event", K(ret));
+      }
+      break;
+    }
+    case VC_EVENT_ACTIVE_TIMEOUT:
+    case EVENT_ERROR:
+    default: {
+      pending_action_ = NULL;
+      if (OB_FAIL(cancel_timeout_action())) {
+        LOG_WARN("fail to cancel_timeout_action", K(ret));
+      } else if (action_.cancelled_) {
+        terminate_ = true;
+        LOG_INFO("async task has been cancelled, will kill itself", K(ret));
+      } else if (NULL != cb_cont_) {
+        need_callback_ = true;
+      } else {
+        terminate_ = true;
+      }
+
+      if (EVENT_ERROR != event || VC_EVENT_ACTIVE_TIMEOUT != event) {
+        LOG_WARN("error state, nerver run here", K(event), K(ret));
+      } else {
+        LOG_INFO("error state", K(event));
+      }
+      break;
+    }
+  }
+
+  if (!terminate_ && (need_callback_ || OB_FAIL(ret))) {
+    if (execute_thread_ == &self_ethread()) {
+      execute_thread_->is_need_thread_pool_event_ = true;
+    }
+    if (OB_FAIL(handle_callback())) {
+      LOG_WARN("fail to handle callback", K(ret));
+    }
+  }
+
+  if (terminate_) {
+    if (execute_thread_ == &self_ethread()) {
+      execute_thread_->is_need_thread_pool_event_ = true;
+    }
+    destroy();
+  }
+
+  return EVENT_DONE;
+}
+
+int ObProxyOperatorCont::init_task()
+{
+  int ret = OB_SUCCESS;
+
+  if (OB_FAIL(operator_root_->open(this, pending_action_, timeout_ms_))) {
+    LOG_WARN("fail to open operator", K_(timeout_ms), K(ret));
+  } else if (OB_FAIL(operator_root_->get_next_row())) {
+    LOG_WARN("fail to get next row", K(ret));
+  } else if (OB_ISNULL(pending_action_)) {
+    LOG_WARN("pending action should not be null", K(ret));
+  }
+
+  return ret;
+}
+
+int ObProxyOperatorCont::finish_task(void *data)
+{
+  int ret = OB_SUCCESS;
+
+  ObProxyResultResp *result_resp = reinterpret_cast<ObProxyResultResp*>(data);
+  if (result_resp->is_resultset_resp()) {
+    if (OB_FAIL(build_executor_resp(buf_, seq_, result_resp))) {
+      LOG_WARN("fail to build shard scan resp", K(ret));
+    }
+  } else if (OB_FAIL(ObMysqlPacketUtil::encode_err_packet(*buf_, seq_, result_resp->get_err_code(), result_resp->get_err_msg()))) {
+    LOG_WARN("fail to encode err pacekt buf", K_(seq), "errmsg", result_resp->get_err_msg(),
+             "errcode", result_resp->get_err_code(), K(ret));
+  }
+
+  return ret;
+}
+
+int ObProxyOperatorCont::schedule_timeout()
+{
+  int ret = OB_SUCCESS;
+
+  if (OB_UNLIKELY(NULL != timeout_action_)) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("timeout action must be NULL", K_(timeout_action), K(ret));
+  } else if (OB_ISNULL(timeout_action_ = execute_thread_->schedule_in(this, HRTIME_MSECONDS(timeout_ms_)))) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("fail to schedule timeout", K_(timeout_action), K_(timeout_ms), K(ret));
+  }
+
+  return ret;
+}
+
+int ObProxyOperatorCont::build_executor_resp(ObMIOBuffer *write_buf, uint8_t &seq, ObProxyResultResp *result_resp)
+{
+  int ret = OB_SUCCESS;
+  int64_t column_count = result_resp->get_column_count();
+  ObSEArray<obmysql::ObMySQLField, 1, common::ObIAllocator&> *fields = NULL;
+  ObSEArray<ObField, 4> ob_fields;
+
+  // header , cols , first eof
+  if (OB_SUCC(ret)) {
+    if (OB_FAIL(result_resp->get_fields(fields))) {
+      LOG_WARN("fail to push field", K(fields), K(ret));
+    } else if (OB_ISNULL(fields)) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("fields should not be null", K(ret));
+    } else if (OB_UNLIKELY(fields->count() != column_count)) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("fields count should equal column_count", K(column_count), "fileds count", fields->count(), K(ret));
+    } else if (OB_FAIL(ObMysqlPacketUtil::encode_header(*write_buf, seq, *fields))) {
+      LOG_WARN("fail to encode header", K(fields), K(seq), K(ret));
+    } else {
+      for (int64_t i = 0; OB_SUCC(ret) && i < column_count; i++) {
+        obmysql::ObMySQLField &mysql_field = fields->at(i);
+        ObField ob_field;
+        if (OB_FAIL(ObSMUtils::to_ob_field(mysql_field, ob_field))) {
+          LOG_WARN("fail to covert to ob field", K(mysql_field), K(ret));
+        } else if (OB_FAIL(ob_fields.push_back(ob_field))) {
+          LOG_WARN("fail to push ob field", K(ob_field), K(ret));
+        }
+      }
+    }
+  }
+
+  // rows
+  if (OB_SUCC(ret)) {
+    ObObj *objs = NULL;
+    int64_t buf_len = sizeof(ObObj) * column_count;
+
+    if (OB_ISNULL(objs = static_cast<ObObj *>(op_fixed_mem_alloc(buf_len)))) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("fail to alloc obj array", K(column_count), K(ret));
+    } else {
+      ObNewRow row;
+      //ObSEArray<common::ObObj, 4> *row_array;
+      ObSEArray<common::ObObj*, 4, common::ObIAllocator&> *row_array;
+      while ((OB_SUCC(ret)) && (OB_SUCC(result_resp->next(row_array)))) {
+        if (OB_ISNULL(row_array)) {
+          ret = OB_ERR_UNEXPECTED;
+          LOG_WARN("row_array should not be null", K(ret));
+        } else if (OB_UNLIKELY(row_array->count() != column_count)) {
+          ret = OB_ERR_UNEXPECTED;
+          LOG_WARN("row_array count should equal column_count", K(column_count), "row_array count", row_array->count(), K(ret));
+        }
+
+        for (int64_t i = 0; OB_SUCC(ret) && i < column_count; i++) {
+          objs[i] = *(row_array->at(i));
+        }
+
+        if (OB_SUCC(ret)) {
+          row.cells_ = objs;
+          row.count_ = column_count;
+          if (OB_FAIL(ObMysqlPacketUtil::encode_row_packet(*write_buf, seq, row, &ob_fields))) {
+            LOG_WARN("fail to encode row", K(seq), K(row), K(ret));
+          } else {
+            row.reset();
+            row_array = NULL;
+          }
+        }
+      }
+
+      if (OB_ITER_END == ret) {
+        ret = OB_SUCCESS;
+      }
+    }
+
+    if (OB_NOT_NULL(objs)) {
+      op_fixed_mem_free(objs, buf_len);
+      objs = NULL;
+    }
+  }
+
+  // second eof
+  if (OB_SUCC(ret)) {
+    if (OB_FAIL(ObMysqlPacketUtil::encode_eof_packet(*write_buf, seq))) {
+      LOG_WARN("fail to encode row", K(seq), K(ret));
+    }
+  }
+
+  return ret;
+}
+
+void ObProxyOperatorCont::destroy()
+{
+  LOG_DEBUG("ObProxyOperatorCont will be destroyed", KP(this));
+
+  if (OB_LIKELY(NULL != buf_reader_)) {
+    buf_reader_->dealloc();
+    buf_reader_ = NULL;
+  }
+
+  if (OB_LIKELY(NULL != buf_)) {
+    free_miobuffer(buf_);
+    buf_ = NULL;
+  }
+
+  ObAsyncCommonTask::destroy();
+}
+
+} // end of namespace engine
+} // end of namespace obproxy
+} // end of namespace oceanbase
diff --git a/src/obproxy/engine/ob_proxy_operator_cont.h b/src/obproxy/engine/ob_proxy_operator_cont.h
new file mode 100644
index 00000000..632fc919
--- /dev/null
+++ b/src/obproxy/engine/ob_proxy_operator_cont.h
@@ -0,0 +1,65 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#ifndef OBPROXY_OPERATOR_CONT_H
+#define OBPROXY_OPERATOR_CONT_H
+
+#include "obutils/ob_async_common_task.h"
+#include "ob_proxy_operator.h"
+
+namespace oceanbase
+{
+namespace obproxy
+{
+namespace engine
+{
+
+class ObProxyOperatorCont : public obutils::ObAsyncCommonTask
+{
+public:
+  ObProxyOperatorCont(event::ObContinuation *cb_cont, event::ObEThread *submit_thread)
+      : ObAsyncCommonTask(cb_cont->mutex_, "operator cont", cb_cont, submit_thread),
+        seq_(0), timeout_ms_(0), operator_root_(NULL), execute_thread_(NULL), data_(NULL),
+        buf_(NULL), buf_reader_(NULL)
+  {
+    SET_HANDLER(&ObProxyOperatorCont::main_handler);
+  }
+
+  ~ObProxyOperatorCont() {}
+
+  int main_handler(int event, void *data);
+  int init(ObProxyOperator* operator_root, uint8_t seq, const int64_t timeout_ms = 0);
+  virtual int init_task();
+  virtual int finish_task(void *data);
+  virtual void *get_callback_data() { return buf_reader_; }
+  virtual int schedule_timeout();
+  virtual void destroy();
+
+private:
+  int build_executor_resp(event::ObMIOBuffer *write_buf, uint8_t &seq, ObProxyResultResp *result_resp);
+
+private:
+  uint8_t seq_;
+  int64_t timeout_ms_;
+  ObProxyOperator* operator_root_;
+  event::ObEThread *execute_thread_;
+  void *data_;
+  event::ObMIOBuffer *buf_;
+  event::ObIOBufferReader *buf_reader_;
+  DISALLOW_COPY_AND_ASSIGN(ObProxyOperatorCont);
+};
+
+} // end of namespace engine
+} // end of namespace obproxy
+} // end of namespace oceanbase
+
+#endif // OBPROXY_OPERATOR_CONT_H
diff --git a/src/obproxy/engine/ob_proxy_operator_result.h b/src/obproxy/engine/ob_proxy_operator_result.h
index 575d7027..05793b7d 100644
--- a/src/obproxy/engine/ob_proxy_operator_result.h
+++ b/src/obproxy/engine/ob_proxy_operator_result.h
@@ -15,6 +15,7 @@
 #include "common/ob_row.h"
 //#include "common/ob_field.h"
 #include "common/obsm_utils.h"
+#include "common/ob_obj_cast.h"
 #include "rpc/obmysql/ob_mysql_field.h"
 #include "proxy/mysqllib/ob_resultset_fetcher.h"
 #include "lib/container/ob_se_array.h"
@@ -123,6 +124,44 @@ int change_sql_field(const ObMysqlField *src_field, obmysql::ObMySQLField *&dst_
   return ret;
 }
 
+int change_sql_value(ObObj &value, obmysql::ObMySQLField &field, ObIAllocator *allocator)
+{
+  int ret = OB_SUCCESS;
+
+  if (value.is_varchar()) {
+    ObObjType ob_type;
+    ObCollationType cs_type = static_cast<ObCollationType>(field.charsetnr_);
+    // utf8_general_ci => CS_TYPE_UTF8MB4_GENERAL_CI
+    if (33 == field.charsetnr_) {
+      cs_type = CS_TYPE_UTF8MB4_GENERAL_CI;
+      // utf8_bin => CS_TYPE_UTF8MB4_BIN
+    } else if (83 == field.charsetnr_) {
+      cs_type = CS_TYPE_UTF8MB4_BIN;
+    }
+
+    value.set_collation_type(cs_type);
+
+    if (0 != value.get_string_len()) {
+      // Convert the column to a specific type, if it cannot be converted, keep varchar
+      if (OB_FAIL(ObSMUtils::get_ob_type(ob_type, field.type_))) {
+        COMMON_LOG(INFO, "cast ob type from mysql type failed", K(ob_type), "elem_type", field.type_, K(ret));
+        ret = OB_SUCCESS;
+      } else if (ObTimestampType == ob_type || ObTimeType == ob_type
+                 || ObDateType == ob_type || ObDateTimeType == ob_type) {
+        //do nothing
+      } else {
+        ObCastCtx cast_ctx(allocator, NULL, CM_NULL_ON_WARN, cs_type);
+        // use src_obj as buf_obj
+        if (OB_FAIL(ObObjCasterV2::to_type(ob_type, cs_type, cast_ctx, value, value))) {
+          COMMON_LOG(WARN, "failed to cast obj", "row", value, K(ob_type), K(cs_type), K(ret));
+        }
+      }
+    }
+  }
+
+  return ret;
+}
+
 class ObProxyResultResp : public executor::ObProxyParallelResp
 {
 public:
diff --git a/src/obproxy/engine/ob_proxy_operator_sort.cpp b/src/obproxy/engine/ob_proxy_operator_sort.cpp
index 8f312225..3ee286fd 100644
--- a/src/obproxy/engine/ob_proxy_operator_sort.cpp
+++ b/src/obproxy/engine/ob_proxy_operator_sort.cpp
@@ -405,7 +405,7 @@ int ObProxyMemMergeSortOp::handle_response_result(void *data, bool &is_final, Ob
       } else if (OB_ISNULL(sort_unit = new (tmp_buf) ObProxyMemMergeSortUnit(allocator_))) {
         ret = OB_ERR_UNEXPECTED;
         LOG_WARN("fail to new merge sort unit", K(ret));
-      } else if (OB_FAIL(sort_unit->init(row, input->get_order_exprs()))) {
+      } else if (OB_FAIL(sort_unit->init(row, result_fields_, input->get_order_exprs()))) {
         LOG_WARN("fail to init sort unit", K(ret));
       } else if (OB_FAIL(sort_units_.push_back(sort_unit))) {
         LOG_WARN("fail to push back sort unit", K(ret));
@@ -460,7 +460,7 @@ int ObProxyMemMergeSortOp::handle_response_result(void *data, bool &is_final, Ob
   return ret;
 }
 
-int ObProxyMemMergeSortUnit::init(ResultRow *row, ObIArray<ObProxyOrderItem*> &order_exprs)
+int ObProxyMemMergeSortUnit::init(ResultRow *row, ResultFields *result_fields, ObIArray<ObProxyOrderItem*> &order_exprs)
 {
   int ret = OB_SUCCESS;
 
@@ -468,6 +468,7 @@ int ObProxyMemMergeSortUnit::init(ResultRow *row, ObIArray<ObProxyOrderItem*> &o
     LOG_WARN("fail to assign order exprs", K(ret));
   } else {
     row_ = row;
+    result_fields_ = result_fields;
     if (OB_FAIL(calc_order_values())) {
       LOG_WARN("fail to get order value", K(ret));
     }
@@ -487,6 +488,15 @@ int ObProxyMemMergeSortUnit::calc_order_values()
   for (int64_t i = 0; OB_SUCC(ret) && i < order_exprs_.count(); i++) {
     if (OB_FAIL(order_exprs_.at(i)->calc(ctx, calc_item, order_values_))) {
       LOG_WARN("fail to calc order exprs", K(ret));
+    } else {
+      int64_t index = order_exprs_.at(i)->get_expr()->get_index();
+      if (-1 != index) {
+        ObObj &value = order_values_.at(i);
+        if (OB_FAIL(change_sql_value(value, result_fields_->at(index), &allocator_))) {
+          LOG_WARN("fail to change sql value", K(value),
+                   "filed", result_fields_->at(index), K(ret));
+        }
+      }
     }
   }
 
@@ -566,7 +576,7 @@ int ObProxyStreamSortOp::handle_response_result(void *data, bool &is_final, ObPr
       } else if (OB_ISNULL(sort_unit = new (tmp_buf) ObProxyStreamSortUnit(allocator_))) {
         ret = OB_ERR_UNEXPECTED;
         LOG_WARN("fail to new merge sort unit", K(ret));
-      } else if (OB_FAIL(sort_unit->init(opres, input->get_order_exprs()))) {
+      } else if (OB_FAIL(sort_unit->init(opres, result_fields_, input->get_order_exprs()))) {
         LOG_WARN("fail to init sort unit", K(ret));
       } else if (OB_FAIL(sort_units_.push_back(sort_unit))) {
         LOG_WARN("fail to push back sort unit", K(ret));
@@ -638,7 +648,8 @@ int ObProxyStreamSortOp::handle_response_result(void *data, bool &is_final, ObPr
   return ret;
 }
 
-int ObProxyStreamSortUnit::init(ObProxyResultResp* result_set, common::ObIArray<ObProxyOrderItem*> &order_exprs)
+int ObProxyStreamSortUnit::init(ObProxyResultResp* result_set, ResultFields *result_fields,
+                                common::ObIArray<ObProxyOrderItem*> &order_exprs)
 {
   int ret = OB_SUCCESS;
   if (OB_FAIL(order_exprs_.assign((order_exprs)))) {
@@ -646,6 +657,9 @@ int ObProxyStreamSortUnit::init(ObProxyResultResp* result_set, common::ObIArray<
   } else if (OB_ISNULL(result_set_ = result_set)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("result set should not NULL", K(ret));
+  } else if (OB_ISNULL(result_fields_ = result_fields)) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("result fields should not NULL", K(ret));
   } else if (OB_FAIL(next())) {
     // The first time, there must be a result, so it must not be OB_ITER_END
     LOG_WARN("fail to exec next", K(ret));
diff --git a/src/obproxy/engine/ob_proxy_operator_sort.h b/src/obproxy/engine/ob_proxy_operator_sort.h
index 033c73d4..a59c55c3 100644
--- a/src/obproxy/engine/ob_proxy_operator_sort.h
+++ b/src/obproxy/engine/ob_proxy_operator_sort.h
@@ -142,12 +142,13 @@ class ObProxyMemMergeSortUnit
 {
 public:
   ObProxyMemMergeSortUnit(common::ObIAllocator &allocator)
-    : allocator_(allocator), row_(NULL),
+    : allocator_(allocator), row_(NULL), result_fields_(NULL),
       order_values_(ObModIds::OB_SE_ARRAY_ENGINE, ENGINE_ARRAY_NEW_ALLOC_SIZE),
       order_exprs_(ObModIds::OB_SE_ARRAY_ENGINE, ENGINE_ARRAY_NEW_ALLOC_SIZE) {}
   ~ObProxyMemMergeSortUnit() {}
 
-  int init(ResultRow *row, common::ObIArray<ObProxyOrderItem*> &order_exprs);
+  int init(ResultRow *row, ResultFields *result_fields,
+           common::ObIArray<ObProxyOrderItem*> &order_exprs);
   virtual bool compare(const ObProxyMemMergeSortUnit* sort_unit) const;
   int calc_order_values();
 
@@ -159,6 +160,7 @@ class ObProxyMemMergeSortUnit
 protected:
   common::ObIAllocator &allocator_;
   ResultRow *row_;
+  ResultFields *result_fields_;
   common::ObSEArray<ObObj, 4> order_values_;
   common::ObSEArray<ObProxyOrderItem*, 4> order_exprs_;
 };
@@ -188,7 +190,8 @@ class ObProxyStreamSortUnit : public ObProxyMemMergeSortUnit
     : ObProxyMemMergeSortUnit(allocator), result_set_(NULL) {}
   ~ObProxyStreamSortUnit() {}
 
-  int init(ObProxyResultResp* result_set, common::ObIArray<ObProxyOrderItem*> &order_exprs);
+  int init(ObProxyResultResp* result_set, ResultFields *result_fields,
+           common::ObIArray<ObProxyOrderItem*> &order_exprs);
   virtual bool compare(const ObProxyStreamSortUnit* sort_unit) const;
   int next();
 
diff --git a/src/obproxy/engine/ob_proxy_operator_table_scan.cpp b/src/obproxy/engine/ob_proxy_operator_table_scan.cpp
index eb6fd78f..ddd8de52 100644
--- a/src/obproxy/engine/ob_proxy_operator_table_scan.cpp
+++ b/src/obproxy/engine/ob_proxy_operator_table_scan.cpp
@@ -20,6 +20,7 @@
 #include "executor/ob_proxy_parallel_cont.h"
 #include "executor/ob_proxy_parallel_execute_cont.h"
 #include "proxy/shard/obproxy_shard_utils.h"
+#include "proxy/mysqllib/ob_proxy_mysql_request.h"
 
 using namespace oceanbase::obproxy::executor;
 using namespace oceanbase::common;
@@ -28,6 +29,15 @@ namespace oceanbase {
 namespace obproxy {
 namespace engine {
 
+ObProxyTableScanOp::~ObProxyTableScanOp()
+{
+  for (int64_t i = 0; i < pres_array_.count(); i++) {
+    executor::ObProxyParallelResp *pres = pres_array_.at(i);
+    op_free(pres);
+    pres = NULL;
+  }
+}
+
 int ObProxyTableScanOp::open(event::ObContinuation *cont, event::ObAction *&action, const int64_t timeout_ms)
 {
   child_cnt_ = 1; //fake child
@@ -77,7 +87,8 @@ int ObProxyTableScanOp::get_next_row()
                "phy table count", table_name_maps.count(),
                "shard prop count", shard_props.count(),
                "dbkey count", db_key_names.count(), K(ret));
-    } else if (OB_FAIL(sql_parser.parse_sql_by_obparser(request_sql, NORMAL_PARSE_MODE, parse_result, true))) {
+    } else if (OB_FAIL(sql_parser.parse_sql_by_obparser(proxy::ObProxyMysqlRequest::get_parse_sql(request_sql),
+                                                        NORMAL_PARSE_MODE, parse_result, true))) {
       LOG_WARN("parse_sql_by_obparser failed", K(request_sql), K(ret));
     }
 
@@ -88,10 +99,9 @@ int ObProxyTableScanOp::get_next_row()
       ObSqlString new_sql;
       char *tmp_buf = NULL;
       bool is_oracle_mode = db_key_name->server_type_ == common::DB_OB_ORACLE;
-      if (OB_FAIL(proxy::ObProxyShardUtils::do_rewrite_shard_select_request(request_sql, parse_result, is_oracle_mode,
-                                                                            table_name_map_warraper.get_hash_map(),
-                                                                            db_key_name->database_name_, false,
-                                                                            new_sql))) {
+      if (OB_FAIL(proxy::ObProxyShardUtils::rewrite_shard_dml_request(request_sql, new_sql, parse_result,
+                                            is_oracle_mode, table_name_map_warraper.get_hash_map(),
+                                            db_key_name->database_name_, false))) {
         LOG_WARN("fail to rewrite shard request", K(request_sql), K(is_oracle_mode), K(ret));
       } else if (OB_ISNULL(tmp_buf = (char *)allocator_.alloc(new_sql.length()))) {
         ret = common::OB_ALLOCATE_MEMORY_FAILED;
@@ -135,6 +145,8 @@ int ObProxyTableScanOp::handle_result(void *data, bool &is_final, ObProxyResultR
   } else if (OB_ISNULL(pres = reinterpret_cast<executor::ObProxyParallelResp*>(data))) {
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("invalid input, pres type is not match", K(ret));
+  } else if (OB_FAIL(pres_array_.push_back(pres))) {
+    LOG_WARN("fail to push result resp to array", K(ret));
   } else {
     if (pres->is_ok_resp()) { // it is the OK packet
       // For the OK package, it is only necessary to construct an OK package in the case of
@@ -156,10 +168,6 @@ int ObProxyTableScanOp::handle_result(void *data, bool &is_final, ObProxyResultR
     }
     LOG_DEBUG("handle_result success", K(ret), K(pres));
   }
-  if (OB_NOT_NULL(pres)) {
-    op_free(pres);
-    pres = NULL;
-  }
   return ret;
 }
 
diff --git a/src/obproxy/engine/ob_proxy_operator_table_scan.h b/src/obproxy/engine/ob_proxy_operator_table_scan.h
index 1c14c926..1571070d 100644
--- a/src/obproxy/engine/ob_proxy_operator_table_scan.h
+++ b/src/obproxy/engine/ob_proxy_operator_table_scan.h
@@ -32,7 +32,7 @@ class ObProxyTableScanOp : public ObProxyOperator
     set_op_type(PHY_TABLE_SCAN);
   }
 
-  virtual ~ObProxyTableScanOp() {};
+  virtual ~ObProxyTableScanOp();
 
   virtual int open(event::ObContinuation *cont, event::ObAction *&action, const int64_t timeout_ms = 0);
   virtual int get_next_row();
@@ -53,6 +53,7 @@ class ObProxyTableScanOp : public ObProxyOperator
 
 protected:
   int64_t sub_sql_count_;
+  common::ObSEArray<executor::ObProxyParallelResp*, 4> pres_array_;
 };
 
 class ObProxyTableScanInput : public ObProxyOpInput
diff --git a/src/obproxy/executor/ob_proxy_parallel_execute_cont.cpp b/src/obproxy/executor/ob_proxy_parallel_execute_cont.cpp
index 51994759..92884bfc 100644
--- a/src/obproxy/executor/ob_proxy_parallel_execute_cont.cpp
+++ b/src/obproxy/executor/ob_proxy_parallel_execute_cont.cpp
@@ -27,6 +27,16 @@ namespace obproxy
 namespace executor
 {
 
+int64_t ObProxyParallelResp::to_string(char *buf, int64_t buf_len) const
+{
+  int64_t pos = 0;
+  J_OBJ_START();
+  J_KV(K_(column_count), K_(cont_index),
+       KP_(resp), KP_(rs_fetcher));
+  J_OBJ_END();
+  return pos;
+}
+
 ObProxyParallelResp::~ObProxyParallelResp()
 {
   if (OB_NOT_NULL(resp_)) {
@@ -66,7 +76,6 @@ int ObProxyParallelResp::next(ObObj *&rows)
 {
   int ret = OB_SUCCESS;
 
-  ObMysqlField *fields = rs_fetcher_->get_field();
   int64_t buf_len = (sizeof(ObObj) * column_count_);
   char *buf = NULL;
 
@@ -79,50 +88,9 @@ int ObProxyParallelResp::next(ObObj *&rows)
     LOG_WARN("fail to alloc mem", K(buf_len), K(ret));
   } else {
     rows = new (buf) ObObj[column_count_];
-    ObObjType ob_type;
     for (int64_t i = 0; OB_SUCC(ret) && i < column_count_; i++) {
       if (OB_FAIL(rs_fetcher_->get_obj(i, rows[i]))) {
         LOG_WARN("fail to get varchar", K(i), K(ret));
-      } else if (rows[i].need_deep_copy()) {
-        int64_t copy_size = rows[i].get_deep_copy_size();
-        int64_t pos = 0;
-        buf = NULL;
-        if (OB_ISNULL(buf = static_cast<char *>(allocator_->alloc(copy_size)))) {
-          ret = OB_ALLOCATE_MEMORY_FAILED;
-          LOG_WARN("fail to alloc mem", K(copy_size), K(ret));
-        } else if (OB_FAIL(rows[i].deep_copy(rows[i], buf, copy_size, pos))) {
-          LOG_WARN("fail to deep coy", "obj", rows[i], K(copy_size), K(ret));
-        }
-      }
-
-      if (OB_SUCC(ret) && rows[i].is_varchar()) {
-        ObCollationType cs_type = static_cast<ObCollationType>(fields[i].charsetnr_);
-        // utf8_general_ci => CS_TYPE_UTF8MB4_GENERAL_CI
-        if (33 == fields[i].charsetnr_) {
-          cs_type = CS_TYPE_UTF8MB4_GENERAL_CI;
-        // utf8_bin => CS_TYPE_UTF8MB4_BIN
-        } else if (83 == fields[i].charsetnr_) {
-          cs_type = CS_TYPE_UTF8MB4_BIN;
-        }
-
-        rows[i].set_collation_type(cs_type);
-
-        if (0 != rows[i].get_string_len()) {
-          // if can not convert, stay varchar type
-          if (OB_FAIL(ObSMUtils::get_ob_type(ob_type, fields[i].type_))) {
-            LOG_INFO("cast ob type from mysql type failed", K(ob_type), "elem_type", fields[i].type_, K(ret));
-            ret = OB_SUCCESS;
-          } else if (ObTimestampType == ob_type || ObTimeType == ob_type
-                     || ObDateType == ob_type || ObDateTimeType == ob_type) {
-            //do nothing
-          } else {
-            ObCastCtx cast_ctx(allocator_, NULL, CM_NULL_ON_WARN, cs_type);
-            // use src_obj as buf_obj
-            if (OB_FAIL(ObObjCasterV2::to_type(ob_type, cs_type, cast_ctx, rows[i], rows[i]))) {
-              COMMON_LOG(WARN, "failed to cast obj", "idx", i, "row", rows[i], K(ob_type), K(cs_type), K(ret));
-            }
-          }
-        }
       }
     }
   }
@@ -201,6 +169,8 @@ int ObProxyParallelExecuteCont::init_task()
   int ret = OB_SUCCESS;  
 
   ObMysqlRequestParam request_param;
+  request_param.ob_client_flags_.client_flags_.OB_CLIENT_SKIP_AUTOCOMMIT = 1;
+  request_param.ob_client_flags_.client_flags_.OB_CLIENT_SEND_REQUEST_DIRECT = 1;
   request_param.sql_ = request_sql_;
   if (OB_FAIL(mysql_proxy_->async_read(this, request_param, pending_action_))) {
     LOG_WARN("fail to async read", K_(request_sql), K(ret));
diff --git a/src/obproxy/executor/ob_proxy_parallel_execute_cont.h b/src/obproxy/executor/ob_proxy_parallel_execute_cont.h
index 98cb30db..ac0ff672 100644
--- a/src/obproxy/executor/ob_proxy_parallel_execute_cont.h
+++ b/src/obproxy/executor/ob_proxy_parallel_execute_cont.h
@@ -44,6 +44,7 @@ class ObProxyParallelResp
   ObMysqlField *get_field() const { return rs_fetcher_->get_field(); }
   int64_t get_column_count() { return column_count_; }
   int64_t get_cont_index() { return cont_index_; }
+  int64_t to_string(char *buf, int64_t buf_len) const;
 
 private:
   proxy::ObClientMysqlResp *resp_;
diff --git a/src/obproxy/iocore/eventsystem/Makemodule.am b/src/obproxy/iocore/eventsystem/Makemodule.am
index be135867..bc8951c9 100644
--- a/src/obproxy/iocore/eventsystem/Makemodule.am
+++ b/src/obproxy/iocore/eventsystem/Makemodule.am
@@ -19,6 +19,8 @@ obproxy/iocore/eventsystem/ob_priority_event_queue.h\
 obproxy/iocore/eventsystem/ob_processor.h\
 obproxy/iocore/eventsystem/ob_protected_queue.h\
 obproxy/iocore/eventsystem/ob_protected_queue.cpp\
+obproxy/iocore/eventsystem/ob_protected_queue_thread_pool.cpp\
+obproxy/iocore/eventsystem/ob_protected_queue_thread_pool.h\
 obproxy/iocore/eventsystem/ob_thread.h\
 obproxy/iocore/eventsystem/ob_thread.cpp\
 obproxy/iocore/eventsystem/ob_vconnection.h\
@@ -32,4 +34,6 @@ obproxy/iocore/eventsystem/ob_grpc_task.h\
 obproxy/iocore/eventsystem/ob_grpc_task.cpp\
 obproxy/iocore/eventsystem/ob_shard_watch_task.h\
 obproxy/iocore/eventsystem/ob_shard_watch_task.cpp\
+obproxy/iocore/eventsystem/ob_shard_scan_all_task.h\
+obproxy/iocore/eventsystem/ob_shard_scan_all_task.cpp\
 obproxy/iocore/eventsystem/ob_thread_impl.h
diff --git a/src/obproxy/iocore/eventsystem/ob_ethread.cpp b/src/obproxy/iocore/eventsystem/ob_ethread.cpp
index 24470fef..6ce48ff4 100644
--- a/src/obproxy/iocore/eventsystem/ob_ethread.cpp
+++ b/src/obproxy/iocore/eventsystem/ob_ethread.cpp
@@ -67,6 +67,8 @@ ObEThread::ObEThread()
       ps_entry_cache_(NULL),
       text_ps_entry_cache_(NULL),
       random_seed_(NULL),
+      is_need_thread_pool_event_(false),
+      thread_pool_event_queue_(NULL),
       warn_log_buf_(NULL),
       warn_log_buf_start_(NULL),
       tt_(REGULAR),
@@ -105,6 +107,8 @@ ObEThread::ObEThread(const ObThreadType att, const int64_t anid)
       ps_entry_cache_(NULL),
       text_ps_entry_cache_(NULL),
       random_seed_(NULL),
+      is_need_thread_pool_event_(false),
+      thread_pool_event_queue_(NULL),
       warn_log_buf_(NULL),
       warn_log_buf_start_(NULL),
       tt_(att),
@@ -143,6 +147,8 @@ ObEThread::ObEThread(const ObThreadType att, ObEvent *e)
       ps_entry_cache_(NULL),
       text_ps_entry_cache_(NULL),
       random_seed_(NULL),
+      is_need_thread_pool_event_(false),
+      thread_pool_event_queue_(NULL),
       warn_log_buf_(NULL),
       warn_log_buf_start_(NULL),
       tt_(att),
@@ -275,6 +281,9 @@ inline void ObEThread::process_event(ObEvent *e, const int calling_code)
       event_queue_external_.enqueue_local(e);
     } else {
       if (e->cancelled_) {
+        if (e->is_thread_pool_event_) {
+          is_need_thread_pool_event_ = true;
+        }
         free_event(*e);
       } else {
         const ObContinuation *c_temp = e->continuation_;
@@ -444,7 +453,16 @@ void ObEThread::execute()
           if (ethreads_to_be_signalled_count_ > 0) {
             flush_signals(this);
           }
-          if (OB_UNLIKELY(OB_SUCCESS != event_queue_external_.dequeue_timed(next_time, true))) {
+
+          if (is_need_thread_pool_event_ && NULL != thread_pool_event_queue_) {
+            if (OB_UNLIKELY(OB_SUCCESS != thread_pool_event_queue_->dequeue_timed(next_time, e))) {
+              LOG_WARN("fail to dequeue time in event_queue_external_");
+            } else if (NULL != e) {
+              is_need_thread_pool_event_ = false;
+              e->ethread_ = this;
+              process_event(e, e->callback_event_);
+            }
+          } else if (OB_UNLIKELY(OB_SUCCESS != event_queue_external_.dequeue_timed(next_time, true))) {
             LOG_WARN("fail to dequeue time in event_queue_external_");
           }
         }
diff --git a/src/obproxy/iocore/eventsystem/ob_ethread.h b/src/obproxy/iocore/eventsystem/ob_ethread.h
index f7b36101..ae78a126 100644
--- a/src/obproxy/iocore/eventsystem/ob_ethread.h
+++ b/src/obproxy/iocore/eventsystem/ob_ethread.h
@@ -34,6 +34,7 @@
 #include "iocore/eventsystem/ob_thread.h"
 #include "iocore/eventsystem/ob_priority_event_queue.h"
 #include "iocore/eventsystem/ob_protected_queue.h"
+#include "iocore/eventsystem/ob_protected_queue_thread_pool.h"
 #include "lib/container/ob_vector.h"
 
 namespace oceanbase
@@ -56,7 +57,7 @@ class ObPartitionRefHashMap;
 class ObRoutineRefHashMap;
 class ObSqlTableRefHashMap;
 class ObCacheCleaner;
-class ObBasePsEntryCache;
+class ObBasePsEntryThreadCache;
 }
 namespace net
 {
@@ -324,8 +325,8 @@ class ObEThread : public ObThread
   proxy::ObSqlTableRefHashMap &get_sql_table_map() { return *sql_table_map_; }
   proxy::ObPartitionRefHashMap &get_partition_map() { return *partition_map_; }
   proxy::ObRoutineRefHashMap &get_routine_map() { return *routine_map_; }
-  proxy::ObBasePsEntryCache &get_ps_entry_cache() { return *ps_entry_cache_; }
-  proxy::ObBasePsEntryCache &get_text_ps_entry_cache() { return *text_ps_entry_cache_; }
+  proxy::ObBasePsEntryThreadCache &get_ps_entry_cache() { return *ps_entry_cache_; }
+  proxy::ObBasePsEntryThreadCache &get_text_ps_entry_cache() { return *text_ps_entry_cache_; }
 
   obutils::ObCongestionRefHashMap &get_cgt_map() { return *congestion_map_; }
   common::ObMysqlRandom &get_random_seed() { return *random_seed_; }
@@ -380,10 +381,13 @@ class ObEThread : public ObThread
   obutils::ObCongestionRefHashMap *congestion_map_;
   proxy::ObCacheCleaner *cache_cleaner_;
   proxy::ObSqlTableRefHashMap *sql_table_map_;
-  proxy::ObBasePsEntryCache *ps_entry_cache_;
-  proxy::ObBasePsEntryCache *text_ps_entry_cache_;
+  proxy::ObBasePsEntryThreadCache *ps_entry_cache_;
+  proxy::ObBasePsEntryThreadCache *text_ps_entry_cache_;
   common::ObMysqlRandom *random_seed_;
 
+  bool is_need_thread_pool_event_;
+  ObProtectedQueueThreadPool *thread_pool_event_queue_;
+
   char *warn_log_buf_;
   char *warn_log_buf_start_;
 
diff --git a/src/obproxy/iocore/eventsystem/ob_event.h b/src/obproxy/iocore/eventsystem/ob_event.h
index b08d0ddc..ecfa64ac 100644
--- a/src/obproxy/iocore/eventsystem/ob_event.h
+++ b/src/obproxy/iocore/eventsystem/ob_event.h
@@ -208,6 +208,7 @@ class ObEvent : public ObAction
   uint32_t in_the_prot_queue_:1;
   uint32_t in_the_priority_queue_:1;
   uint32_t in_heap_:4;
+  uint32_t is_thread_pool_event_;
   int32_t callback_event_;
 
   ObHRTime timeout_at_;
@@ -235,6 +236,7 @@ inline ObEvent::ObEvent()
       in_the_prot_queue_(false),
       in_the_priority_queue_(false),
       in_heap_(0),
+      is_thread_pool_event_(false),
       callback_event_(EVENT_NONE),
       timeout_at_(0),
       period_(0),
diff --git a/src/obproxy/iocore/eventsystem/ob_event_processor.cpp b/src/obproxy/iocore/eventsystem/ob_event_processor.cpp
index 200d3827..c7587f19 100644
--- a/src/obproxy/iocore/eventsystem/ob_event_processor.cpp
+++ b/src/obproxy/iocore/eventsystem/ob_event_processor.cpp
@@ -34,6 +34,7 @@
 #include "iocore/eventsystem/ob_event_system.h"
 #include <unistd.h>
 #include "utils/ob_cpu_affinity.h"
+#include "ob_proxy_init.h"
 
 using namespace oceanbase::common;
 
@@ -45,6 +46,18 @@ namespace event
 {
 class ObEventProcessor g_event_processor;
 
+int ObEventProcessor::init_thread(ObEThread *&t)
+{
+  int ret = OB_SUCCESS;
+  if (OB_FAIL(t->init())) {
+    LOG_WARN("fail to init event", K(ret));
+    delete t;
+    t = NULL;
+  }
+
+  return ret;
+}
+
 int ObEventProcessor::spawn_event_threads(
     const int64_t thread_count, const char *et_name,
     const int64_t stacksize, ObEventThreadType &etype)
@@ -76,10 +89,8 @@ int ObEventProcessor::spawn_event_threads(
       if (OB_ISNULL(t = new(std::nothrow) ObEThread(REGULAR, MAX_THREADS_IN_EACH_TYPE + event_thread_count_ - net_thread_count + i))) {
         ret = OB_ALLOCATE_MEMORY_FAILED;
         LOG_ERROR("fail to allocator memory for REGULAR ObEThread", K(i), K(thread_count), K(ret));
-      } else if (OB_FAIL(t->init())) {
-        LOG_WARN("fail to init event", K(i), K(ret));
-        delete t;
-        t = NULL;
+      } else if (OB_FAIL(init_thread(t))) {
+        LOG_WARN("fail to init thread", K(i), K(ret));
       } else {
         all_event_threads_[event_thread_count_ + i] = t;
         event_thread_[new_thread_group_id][i] = t;
@@ -134,10 +145,8 @@ int ObEventProcessor::spawn_net_threads(const int64_t thread_count,
       if (OB_ISNULL(t = new(std::nothrow) ObEThread(REGULAR, net_thread_count + i))) {
         ret = OB_ALLOCATE_MEMORY_FAILED;
         LOG_ERROR("fail to allocate memory for REGULAR ObEThread", K(i), K(thread_count), K(ret));
-      } else if (OB_FAIL(t->init())) {
-        LOG_WARN("fail to init event", K(i), K(ret));
-        delete t;
-        t = NULL;
+      } else if (OB_FAIL(init_thread(t))) {
+        LOG_WARN("fail to init thread", K(i), K(ret));
       } else {
         all_event_threads_[event_thread_count_ + i] = t;
         event_thread_[ET_CALL][net_thread_count + i] = t;
@@ -182,6 +191,7 @@ inline int ObEventProcessor::init_one_event_thread(const int64_t index)
     delete t;
     t = NULL;
   } else {
+    // It should be noted here that the thread with index 0 in rich client mode will be created
     if (0 == index) {
       this_thread() = t;
       global_mutex = t->mutex_;
@@ -235,7 +245,6 @@ int ObEventProcessor::start(const int64_t net_thread_count, const int64_t stacks
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("invalid parameters", K(stacksize), K(ret));
   } else {
-
     if (!automatic_match_work_thread
         || OB_UNLIKELY((cpu_num = get_cpu_count()) <= 0)
         || cpu_num > net_thread_count) {
@@ -297,7 +306,7 @@ int ObEventProcessor::start(const int64_t net_thread_count, const int64_t stacks
         if (OB_UNLIKELY(length <= 0) || OB_UNLIKELY(length >= static_cast<int32_t>(sizeof(thr_name)))) {
           ret = OB_SIZE_OVERFLOW;
           LOG_WARN("fail format thread name", K(length), K(ret));
-        } else if ((0 != i) && OB_FAIL(all_event_threads_[i]->start(thr_name, stacksize))) {
+        } else if ((0 != i || RUN_MODE_CLIENT == g_run_mode) && OB_FAIL(all_event_threads_[i]->start(thr_name, stacksize))) {
           LOG_WARN("fail to start event thread", K(thr_name), K(ret));
         } else {
           if (bind_cpu) {
diff --git a/src/obproxy/iocore/eventsystem/ob_event_processor.h b/src/obproxy/iocore/eventsystem/ob_event_processor.h
index df6391d9..cfe8da2a 100644
--- a/src/obproxy/iocore/eventsystem/ob_event_processor.h
+++ b/src/obproxy/iocore/eventsystem/ob_event_processor.h
@@ -155,6 +155,8 @@ class ObEventProcessor : public ObProcessor
   int spawn_net_threads(const int64_t thread_count, const char *et_name,
                            const int64_t stacksize);
 
+  virtual int init_thread(ObEThread *&t);
+
   /**
    * Schedules the continuation on a specific ObEThread to receive an event
    * at the given timeout.  Requests the ObEventProcessor to schedule
@@ -303,7 +305,7 @@ class ObEventProcessor : public ObProcessor
    */
   int64_t allocate(const int64_t size);
 
-  ObEvent *schedule(ObEvent *e, const ObEventThreadType etype, const bool fast_signal = false);
+  virtual ObEvent *schedule(ObEvent *e, const ObEventThreadType etype, const bool fast_signal = false);
 
   ObEThread *assign_thread(const ObEventThreadType etype);
 
@@ -417,7 +419,7 @@ inline ObEThread *ObEventProcessor::assign_thread(const ObEventThreadType etype)
   return (event_thread_[etype][next]);
 }
 
-inline ObEvent *ObEventProcessor::schedule(
+ObEvent *ObEventProcessor::schedule(
     ObEvent *event, const ObEventThreadType etype, const bool fast_signal)
 {
   event->ethread_ = assign_thread(etype);
diff --git a/src/obproxy/iocore/eventsystem/ob_protected_queue_thread_pool.cpp b/src/obproxy/iocore/eventsystem/ob_protected_queue_thread_pool.cpp
new file mode 100644
index 00000000..8a6a6420
--- /dev/null
+++ b/src/obproxy/iocore/eventsystem/ob_protected_queue_thread_pool.cpp
@@ -0,0 +1,75 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#define USING_LOG_PREFIX PROXY_EVENT
+
+#include "iocore/eventsystem/ob_event_system.h"
+#include "iocore/net/ob_unix_net.h"
+
+using namespace oceanbase::common;
+
+namespace oceanbase
+{
+namespace obproxy
+{
+namespace event
+{
+
+void ObProtectedQueueThreadPool::enqueue(ObEvent *e)
+{
+  if (OB_ISNULL(e)) {
+    LOG_WARN("event NULL, it should not happened");
+  } else if (OB_UNLIKELY(e->in_the_prot_queue_) || OB_UNLIKELY(e->in_the_priority_queue_)) {
+    LOG_WARN("event has already in queue, it should not happened", K(*e));
+  } else {
+    int ret = OB_SUCCESS;
+    e->in_the_prot_queue_ = 1;
+    atomic_list_.push(e);
+
+    if (OB_FAIL(signal())) {
+      LOG_WARN("fail to do signal, it should not happened", K(ret));
+    }
+  }
+}
+
+int ObProtectedQueueThreadPool::dequeue_timed(const ObHRTime timeout, ObEvent *&event)
+{
+  int ret = OB_SUCCESS;
+
+  if (NULL != (event= (ObEvent *)(atomic_list_.pop()))) {
+    event->in_the_prot_queue_ = 0;
+  } else {
+    if (OB_FAIL(mutex_acquire(&lock_))) {
+      LOG_ERROR("fail to acquire mutex", K(ret));
+    } else {
+      if (atomic_list_.empty()) {
+        timespec ts = hrtime_to_timespec(timeout);
+        cond_timedwait(&might_have_data_, &lock_, &ts);
+      }
+
+      if (NULL != (event= (ObEvent *)(atomic_list_.pop()))) {
+        event->in_the_prot_queue_ = 0;
+      }
+
+      int tmp_ret = OB_SUCCESS;
+      if (OB_UNLIKELY(OB_SUCCESS != (tmp_ret = mutex_release(&lock_)))) {
+        LOG_ERROR("fail to release mutex", K(tmp_ret));
+      }
+    }
+  }
+
+  return ret;
+}
+
+} // end of namespace event
+} // end of namespace obproxy
+} // end of namespace oceanbase
diff --git a/src/obproxy/iocore/eventsystem/ob_protected_queue_thread_pool.h b/src/obproxy/iocore/eventsystem/ob_protected_queue_thread_pool.h
new file mode 100644
index 00000000..668caa6e
--- /dev/null
+++ b/src/obproxy/iocore/eventsystem/ob_protected_queue_thread_pool.h
@@ -0,0 +1,86 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#ifndef OBPROXY_PROTECTED_QUEUE_THREAD_POOL_H
+#define OBPROXY_PROTECTED_QUEUE_THREAD_POOL_H
+
+#include "iocore/eventsystem/ob_event.h"
+
+namespace oceanbase
+{
+namespace obproxy
+{
+namespace event
+{
+
+class ObProtectedQueueThreadPool
+{
+public:
+  ObProtectedQueueThreadPool() : is_inited_(false) {}
+  ~ObProtectedQueueThreadPool() { }
+
+  int init();
+  void enqueue(ObEvent *e);
+  int dequeue_timed(const ObHRTime timeout, ObEvent *&event);
+  int signal();
+
+public:
+  bool is_inited_;
+  common::ObAtomicList atomic_list_;
+  ObMutex lock_;
+  ObProxyThreadCond might_have_data_;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(ObProtectedQueueThreadPool);
+};
+
+inline int ObProtectedQueueThreadPool::init()
+{
+  int ret = common::OB_SUCCESS;
+  ObEvent e;
+  if (OB_FAIL(common::mutex_init(&lock_))) {
+    PROXY_EVENT_LOG(WARN, "fail to init mutex", K(ret));
+  } else if (OB_FAIL(atomic_list_.init("ObProtectedQueueThreadPool",
+                                       reinterpret_cast<char *>(&e.link_.next_) - reinterpret_cast<char *>(&e)))) {
+    PROXY_EVENT_LOG(WARN, "fail to init atomic_list_", K(ret));
+  } else if (OB_FAIL(cond_init(&might_have_data_))) {
+    PROXY_EVENT_LOG(WARN, "fail to init ObProxyThreadCond", K(ret));
+  } else {
+    is_inited_ = 0;
+  }
+  return ret;
+}
+
+inline int ObProtectedQueueThreadPool::signal()
+{
+  int ret = common::OB_SUCCESS;
+  // Need to get the lock before you can signal the thread
+  if (OB_FAIL(common::mutex_acquire(&lock_))) {
+    PROXY_EVENT_LOG(ERROR, "fail to acquire lock", K(ret));
+  } else {
+    if (OB_FAIL(cond_signal(&might_have_data_))) {
+      PROXY_EVENT_LOG(WARN, "fail to call cond_signal", K(ret));
+    }
+
+    int tmp_ret = common::OB_SUCCESS;
+    if (OB_UNLIKELY(common::OB_SUCCESS != ( tmp_ret = common::mutex_release(&lock_)))) {
+      PROXY_EVENT_LOG(WARN, "fail to release mutex", K(tmp_ret));
+    }
+  }
+  return ret;
+}
+
+} // end of namespace event
+} // end of namespace obproxy
+} // end of namespace oceanbase
+
+#endif // OBPROXY_PROTECTED_QUEUE_THREAD_POOL_H
diff --git a/src/obproxy/iocore/eventsystem/ob_shard_scan_all_task.cpp b/src/obproxy/iocore/eventsystem/ob_shard_scan_all_task.cpp
new file mode 100644
index 00000000..b1abca64
--- /dev/null
+++ b/src/obproxy/iocore/eventsystem/ob_shard_scan_all_task.cpp
@@ -0,0 +1,80 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#define USING_LOG_PREFIX PROXY_EVENT
+
+#include "iocore/eventsystem/ob_shard_scan_all_task.h"
+#include "iocore/eventsystem/ob_event_system.h"
+
+using namespace oceanbase::common;
+
+namespace oceanbase
+{
+namespace obproxy
+{
+namespace event
+{
+ObEventThreadType ET_SHARD_SCAN_ALL = ET_CALL;
+ObShardScanAllTaskProcessor g_shard_scan_all_task_processor;
+
+// Note that if the number of task_threads is 0, all continuations scheduled for
+// ET_SHARD_SCAN_ALL ends up running on ET_CALL (which is the net-threads).
+int ObShardScanAllTaskProcessor::start(const int64_t shard_scan_all_threads, const int64_t stacksize)
+{
+  int ret = OB_SUCCESS;
+  if (OB_ISNULL(thread_pool_event_queue_ = new (std::nothrow) ObProtectedQueueThreadPool())) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    LOG_WARN("fail to new ObProtectedQueueThreadPool", K(ret));
+  } else if (OB_FAIL(thread_pool_event_queue_->init())) {
+    LOG_WARN("fail to init thread_pool_event_queue", K(ret));
+  } else if (OB_FAIL(spawn_event_threads(shard_scan_all_threads, "ET_SHARD_SCAN_ALL", stacksize, ET_SHARD_SCAN_ALL))) {
+    LOG_WARN("fail to spawn event threads for ET_SHARD_SCAN_ALL", K(ret));
+  }
+
+  return ret;
+}
+
+int ObShardScanAllTaskProcessor::init_thread(ObEThread *&t)
+{
+  int ret = OB_SUCCESS;
+
+  if (OB_FAIL(t->init())) {
+    LOG_WARN("fail to init event", K(ret));
+    delete t;
+    t = NULL;
+  } else {
+    t->thread_pool_event_queue_ = thread_pool_event_queue_;
+    t->is_need_thread_pool_event_ = true;
+  }
+
+  return ret;
+}
+
+ObEvent *ObShardScanAllTaskProcessor::schedule(ObEvent *event, const ObEventThreadType etype, const bool fast_signal)
+{
+  UNUSED(fast_signal);
+  UNUSED(etype);
+
+  if (NULL != event->continuation_->mutex_) {
+    event->mutex_ = event->continuation_->mutex_;
+  } else {
+    event->continuation_->mutex_ = event->ethread_->mutex_;
+    event->mutex_ = event->continuation_->mutex_;
+  }
+  event->is_thread_pool_event_ = true;
+  thread_pool_event_queue_->enqueue(event);
+  return event;
+}
+
+} // end of namespace event
+} // end of namespace obproxy
+} // end of namespace oceanbase
diff --git a/src/obproxy/iocore/eventsystem/ob_shard_scan_all_task.h b/src/obproxy/iocore/eventsystem/ob_shard_scan_all_task.h
new file mode 100644
index 00000000..b2ef2590
--- /dev/null
+++ b/src/obproxy/iocore/eventsystem/ob_shard_scan_all_task.h
@@ -0,0 +1,47 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#ifndef OBPROXY_SHARD_SCAN_ALL_TASK_H
+#define OBPROXY_SHARD_SCAN_ALL_TASK_H
+
+#include "iocore/eventsystem/ob_event_processor.h"
+#include "iocore/eventsystem/ob_event.h"
+#include "iocore/eventsystem/ob_protected_queue_thread_pool.h"
+
+namespace oceanbase
+{
+namespace obproxy
+{
+namespace event
+{
+extern ObEventThreadType ET_SHARD_SCAN_ALL;
+
+class ObShardScanAllTaskProcessor : public ObEventProcessor
+{
+public:
+  ObShardScanAllTaskProcessor() : ObEventProcessor(), thread_pool_event_queue_(NULL) {}
+  virtual ~ObShardScanAllTaskProcessor() {}
+  int start(const int64_t shard_scan_all_threads, const int64_t stacksize = DEFAULT_STACKSIZE);
+
+  virtual int init_thread(ObEThread *&t);
+  virtual ObEvent *schedule(ObEvent *event, const ObEventThreadType etype, const bool fast_signal);
+
+private:
+  ObProtectedQueueThreadPool *thread_pool_event_queue_;
+};
+
+extern ObShardScanAllTaskProcessor g_shard_scan_all_task_processor;
+} // end of namespace event
+} // end of namespace obproxy
+} // end of namespace oceanbase
+
+#endif // OBPROXY_SHARD_SCAN_ALL_TASK_H
diff --git a/src/obproxy/iocore/eventsystem/ob_vconnection.h b/src/obproxy/iocore/eventsystem/ob_vconnection.h
index ef3dfe60..d413b7f0 100644
--- a/src/obproxy/iocore/eventsystem/ob_vconnection.h
+++ b/src/obproxy/iocore/eventsystem/ob_vconnection.h
@@ -98,6 +98,8 @@ class ObProxyMutex;
 #define VC_EVENT_ACTIVE_TIMEOUT          (VC_EVENT_EVENTS_START+6)
 
 #define VC_EVENT_HELLO_PKT_READ_READY    (VC_EVENT_EVENTS_START+7)
+// OBProxy detect server dead, should close connection
+#define VC_EVENT_DETECT_SERVER_DEAD      (VC_EVENT_EVENTS_START+8)
 
 // ObEvent return codes
 #define VC_EVENT_DONE                CONTINUATION_DONE
@@ -184,6 +186,8 @@ class ObVConnection : public ObContinuation
    *   No activity was performed for a certain period.
    * VC_EVENT_ACTIVE_TIMEOUT
    *   Write operation continued beyond a time limit.
+   * VC_EVENT_DETECT_SERVER_DEAD
+   *   find Server dead, close connection
    * VC_EVENT_ERROR
    *   An error occurred during the write
    *
@@ -622,6 +626,10 @@ static inline const char *get_vc_event_name(int32_t event)
       ret = "VC_EVENT_ACTIVE_TIMEOUT";
       break;
 
+    case VC_EVENT_DETECT_SERVER_DEAD:
+      ret = "VC_EVENT_DETECT_SERVER_DEAD";
+      break;
+
     default:
       ret = "unknown event";
       break;
diff --git a/src/obproxy/iocore/net/ob_connection.cpp b/src/obproxy/iocore/net/ob_connection.cpp
index 66dee9a9..4ee0c9da 100644
--- a/src/obproxy/iocore/net/ob_connection.cpp
+++ b/src/obproxy/iocore/net/ob_connection.cpp
@@ -30,6 +30,8 @@
 
 #include "iocore/net/ob_connection.h"
 #include "utils/ob_proxy_hot_upgrader.h"
+#include "utils/ob_layout.h"
+#include "ob_proxy_init.h"
 
 using namespace oceanbase::common;
 using namespace oceanbase::obproxy::event;
@@ -390,6 +392,50 @@ int ObServerConnection::setup_fd_for_listen(
     const int32_t send_bufsize)
 {
   int ret = OB_SUCCESS;
+  if (RUN_MODE_PROXY == g_run_mode) {
+    if (OB_FAIL(setup_fd_for_listen_proxy_mode(non_blocking, recv_bufsize, send_bufsize))) {
+      PROXY_SOCK_LOG(WARN, "setup_fd_for_listen_proxy_mode failed", K(ret));
+    }
+  } else if (RUN_MODE_CLIENT == g_run_mode) {
+    if (OB_FAIL(setup_fd_for_listen_client_mode(non_blocking, recv_bufsize, send_bufsize))) {
+      PROXY_SOCK_LOG(WARN, "setup_fd_for_listen_client_mode failed", K(ret));
+    }
+  }
+
+  return ret;
+}
+
+int ObServerConnection::setup_fd_for_listen_client_mode(
+    const bool non_blocking,
+    const int32_t recv_bufsize,
+    const int32_t send_bufsize)
+{
+  UNUSED(recv_bufsize);
+  UNUSED(send_bufsize);
+  int ret = OB_SUCCESS;
+
+  if (non_blocking && OB_FAIL(ObSocketManager::nonblocking(fd_))) {
+    PROXY_SOCK_LOG(WARN, "fail to set fd nonblocking", K(fd_), K(ret));
+  }
+
+  if (OB_FAIL(ret)) {
+    // make coverity happy
+    int tmp_ret = ret;
+    if (OB_FAIL(close())) {
+      PROXY_SOCK_LOG(WARN, "fail to close server connection", K(ret));
+    }
+    ret = tmp_ret;
+  }
+  return ret;
+}
+
+
+int ObServerConnection::setup_fd_for_listen_proxy_mode(
+    const bool non_blocking,
+    const int32_t recv_bufsize,
+    const int32_t send_bufsize)
+{
+  int ret = OB_SUCCESS;
 
   if (OB_FAIL(ObSocketManager::set_sndbuf_and_rcvbuf_size(fd_,
       send_bufsize, recv_bufsize, SNDBUF_AND_RCVBUF_PREC))) {
@@ -458,7 +504,7 @@ int ObServerConnection::setup_fd_for_listen(
     // make coverity happy
     int tmp_ret = ret;
     if (OB_FAIL(close())) {
-      PROXY_SOCK_LOG(WARN, "fail to close server connection", K(tmp_ret));
+      PROXY_SOCK_LOG(WARN, "fail to close server connection", K(ret));
     }
     ret = tmp_ret;
   }
@@ -467,6 +513,55 @@ int ObServerConnection::setup_fd_for_listen(
 
 int ObServerConnection::listen(const bool non_blocking, const int32_t recv_bufsize,
                                const int32_t send_bufsize)
+{
+  int ret = OB_SUCCESS;
+  if (RUN_MODE_PROXY == g_run_mode) {
+    if (OB_FAIL(listen_proxy_mode(non_blocking, recv_bufsize, send_bufsize))) {
+      PROXY_SOCK_LOG(WARN, "listen proxy mode failed", K(ret));
+    }
+  } else if (RUN_MODE_CLIENT == g_run_mode) {
+    if (OB_FAIL(listen_client_mode(non_blocking, recv_bufsize, send_bufsize))) {
+      PROXY_SOCK_LOG(WARN, "listen client mode failed", K(ret));
+    }
+  }
+
+  return ret;
+}
+
+int ObServerConnection::listen_client_mode(const bool non_blocking, const int32_t recv_bufsize,
+                                           const int32_t send_bufsize)
+{
+  int ret = OB_SUCCESS;
+  struct sockaddr_un *addr = (struct sockaddr_un*)&addr_.unix_domain_;
+  addr->sun_family = AF_UNIX;
+  memset(addr->sun_path, 0, sizeof(addr->sun_path));
+  strncpy(addr->sun_path, get_global_layout().get_unix_domain_path(), sizeof(addr->sun_path) - 1);
+  if (OB_FAIL(ObSocketManager::socket(AF_UNIX, SOCK_STREAM, 0, fd_))) {
+    PROXY_SOCK_LOG(WARN, "fail to create socket", K(ret), KERRMSGS);
+  } else if (OB_FAIL(setup_fd_for_listen_client_mode(non_blocking, recv_bufsize, send_bufsize))) {
+    PROXY_SOCK_LOG(WARN, "fail to setup_fd_for_listen", K(ret));
+  } else if (OB_FAIL(ObSocketManager::bind(fd_, &addr_.sa_, sizeof(*addr)))) {
+    PROXY_SOCK_LOG(WARN, "fail to bind", K(ret));
+  } else if (OB_FAIL(ObSocketManager::listen(fd_, LISTEN_BACKLOG))) {
+    PROXY_SOCK_LOG(WARN, "fail to listen", KERRMSGS, K(ret));
+  } else {
+    ObHotUpgraderInfo &info = get_global_hot_upgrade_info();
+    info.ipv4_fd_ = fd_;
+  }
+
+  if (OB_FAIL(ret)) {
+    // make coverity happy
+    int tmp_ret = ret;
+    if (OB_FAIL(close())) {
+      PROXY_SOCK_LOG(WARN, "fail to close server connection", K(ret));
+    }
+    ret = tmp_ret;
+  }
+  return ret;
+}
+
+int ObServerConnection::listen_proxy_mode(const bool non_blocking, const int32_t recv_bufsize,
+                                          const int32_t send_bufsize)
 {
   int ret = OB_SUCCESS;
   if (!ops_is_ip(accept_addr_)) {
@@ -478,21 +573,23 @@ int ObServerConnection::listen(const bool non_blocking, const int32_t recv_bufsi
   ObHotUpgraderInfo &info = get_global_hot_upgrade_info();
 
   if (OB_FAIL(ObSocketManager::socket(addr_.sa_.sa_family, SOCK_STREAM, IPPROTO_TCP, fd_))) {
-    PROXY_SOCK_LOG(WARN, "failed to create socket", K(addr_), KERRMSGS, K(ret));
+    PROXY_SOCK_LOG(WARN, "fail to create socket", K(addr_), KERRMSGS, K(ret));
   } else if (OB_FAIL(setup_fd_for_listen(non_blocking, recv_bufsize, send_bufsize))) {
-    PROXY_SOCK_LOG(WARN, "failed to setup_fd_for_listen", K(addr_), K(ret));
+    PROXY_SOCK_LOG(WARN, "fail to setup_fd_for_listen", K(addr_), K(ret));
   } else if (OB_FAIL(ObSocketManager::bind(fd_, &addr_.sa_,
       static_cast<int64_t>(ops_ip_size(addr_.sa_))))) {
-    PROXY_SOCK_LOG(WARN, "failed to bind", K(addr_), KERRMSGS, K(ret));
+    PROXY_SOCK_LOG(WARN, "fail to bind", K(addr_), KERRMSGS, K(ret));
   } else if (OB_FAIL(ObSocketManager::listen(fd_, LISTEN_BACKLOG))) {
-    PROXY_SOCK_LOG(WARN, "failed to listen", K(addr_), KERRMSGS, K(ret));
+    PROXY_SOCK_LOG(WARN, "fail to listen", K(addr_), KERRMSGS, K(ret));
   } else {
     // Original just did this on port == 0.
     int64_t namelen = sizeof(addr_);
     if (OB_FAIL(ObSocketManager::getsockname(fd_, &addr_.sa_, &namelen))) {
       PROXY_SOCK_LOG(WARN, "failed to getsockname", K(addr_), KERRMSGS, K(ret));
-    } else {
-      info.fd_ = fd_;
+    } else if (addr_.is_ip4()) {
+      info.ipv4_fd_ = fd_;
+    } else if (addr_.is_ip6()) {
+      info.ipv6_fd_ = fd_;
     }
   }
 
@@ -500,7 +597,7 @@ int ObServerConnection::listen(const bool non_blocking, const int32_t recv_bufsi
     // make coverity happy
     int tmp_ret = ret;
     if (OB_FAIL(close())) {
-      PROXY_SOCK_LOG(WARN, "fail to close server connection", K(tmp_ret));
+      PROXY_SOCK_LOG(WARN, "fail to close server connection", K(ret));
     }
     ret = tmp_ret;
   }
diff --git a/src/obproxy/iocore/net/ob_connection.h b/src/obproxy/iocore/net/ob_connection.h
index 31cf184e..bc87bc03 100644
--- a/src/obproxy/iocore/net/ob_connection.h
+++ b/src/obproxy/iocore/net/ob_connection.h
@@ -159,6 +159,22 @@ class ObServerConnection : public ObConnection
   // Client side (inbound) local IP address.
   ObIpEndpoint accept_addr_;
 
+private:
+  int setup_fd_for_listen_proxy_mode(
+      const bool non_blocking = false,
+      const int32_t recv_bufsize = 0,
+      const int32_t send_bufsize = 0);
+  int setup_fd_for_listen_client_mode(
+      const bool non_blocking = false,
+      const int32_t recv_bufsize = 0,
+      const int32_t send_bufsize = 0);
+  int listen_proxy_mode(const bool non_blocking = false,
+                        const int32_t recv_bufsize = 0,
+                        const int32_t send_bufsize = 0);
+  int listen_client_mode(const bool non_blocking = false,
+                        const int32_t recv_bufsize = 0,
+                        const int32_t send_bufsize = 0);
+
 private:
   static const int32_t LISTEN_BACKLOG;
 };
diff --git a/src/obproxy/iocore/net/ob_inet.cpp b/src/obproxy/iocore/net/ob_inet.cpp
index 3cfe40a1..f37e0e42 100644
--- a/src/obproxy/iocore/net/ob_inet.cpp
+++ b/src/obproxy/iocore/net/ob_inet.cpp
@@ -41,14 +41,27 @@ namespace obproxy
 namespace net
 {
 
+uint64_t ObIpEndpoint::hash(const uint64_t hash) const
+{
+  char buf[MAX_IP_ADDR_LENGTH];
+  int64_t pos = to_string(buf, MAX_IP_ADDR_LENGTH);
+  return murmurhash(buf, static_cast<int32_t>(pos), hash);
+}
+
 int64_t ObIpEndpoint::to_string(char *buf, const int64_t buf_len) const
 {
-  char ip_buff[INET6_ADDRSTRLEN];
+  char ip_buff[MAX_IP_ADDR_LENGTH];
   int64_t pos = 0;
   J_OBJ_START();
-  databuff_printf(buf, buf_len, pos, "%s:%u",
-                  ops_ip_ntop(*this, ip_buff, sizeof(ip_buff)),
-                  ops_ip_port_host_order(*this));
+  if (is_ip6()) {
+    databuff_printf(buf, buf_len, pos, "[%s]:%u",
+                    ops_ip_ntop(*this, ip_buff, sizeof(ip_buff)),
+                    ops_ip_port_host_order(*this));
+  } else {
+    databuff_printf(buf, buf_len, pos, "%s:%u",
+                    ops_ip_ntop(*this, ip_buff, sizeof(ip_buff)),
+                    ops_ip_port_host_order(*this));
+  }
   J_OBJ_END();
   return pos;
 }
diff --git a/src/obproxy/iocore/net/ob_inet.h b/src/obproxy/iocore/net/ob_inet.h
index 369d8ce3..6321c6e5 100644
--- a/src/obproxy/iocore/net/ob_inet.h
+++ b/src/obproxy/iocore/net/ob_inet.h
@@ -92,10 +92,15 @@ union ObIpEndpoint
     memset(this, 0, sizeof(ObIpEndpoint));
     assign(addr);
   }
+  explicit ObIpEndpoint(const sockaddr_storage &addr) {
+    memset(this, 0, sizeof(ObIpEndpoint));
+    assign(addr);
+  }
   ObIpEndpoint (const ObIpEndpoint &point) { MEMCPY(this, &point, sizeof(ObIpEndpoint)); }
   void operator= (const ObIpEndpoint &point) { MEMCPY(this, &point, sizeof(ObIpEndpoint)); }
 
   ObIpEndpoint &assign(const sockaddr &ip);
+  ObIpEndpoint &assign(const sockaddr_storage &ip);
 
   ObIpEndpoint &assign(const ObIpAddr &addr, const in_port_t port = 0);
   // Test for valid IP address.
@@ -107,6 +112,8 @@ union ObIpEndpoint
   // Test for IPv6.
   bool is_ip6() const;
 
+  bool is_unix_domain() const;
+
   uint16_t family() const;
   // Set to be any address for family family.
   // family must be AF_INET or AF_INET6.
@@ -129,13 +136,14 @@ union ObIpEndpoint
   int64_t get_port_host_order() const;
   uint32_t get_ip4_host_order() const;
 
-  uint64_t hash(const uint64_t hash = 0) const { return common::murmurhash(&sa_, sizeof(sockaddr), hash); }
+  uint64_t hash(const uint64_t hash = 0) const;
 
   int64_t to_string(char *buffer, const int64_t size) const;
 
   struct sockaddr sa_; // Generic address.
   struct sockaddr_in sin_; // IPv4
   struct sockaddr_in6 sin6_; // IPv6
+  struct sockaddr_un unix_domain_; // unix_domain
 };
 
 // Reset an address to invalid.
@@ -485,8 +493,17 @@ inline const uint8_t *ops_ip_addr8_cast(const ObIpEndpoint &ip)
 // @return true if this is an IP loopback address, false otherwise.
 inline bool ops_is_ip_loopback(const sockaddr &ip)
 {
-  return (AF_INET == ip.sa_family && 0x7F == ops_ip_addr8_cast(ip)[0])
-         || (AF_INET6 == ip.sa_family && IN6_IS_ADDR_LOOPBACK(&ops_ip6_addr_cast(ip)));
+  bool zret = false;
+  if (ops_is_ip4(ip)) {
+    in_addr_t a = ops_ip4_addr_cast(ip);
+    zret = (a == 0x100007F);
+  } else if (ops_is_ip6(ip)) {
+    in6_addr a = ops_ip6_addr_cast(ip);
+    zret = ((a.s6_addr32[0] == 0 && a.s6_addr32[1] == 0 && a.s6_addr32[2] == 0
+           && a.s6_addr[12] == 0 && a.s6_addr[13] == 0 && a.s6_addr[14] == 0
+           && a.s6_addr[15] == 1));
+  }
+  return zret;
 }
 
 inline bool ops_is_ip_loopback(const ObIpEndpoint &ip)
@@ -556,6 +573,8 @@ inline bool ops_ip_copy(sockaddr &dst, const sockaddr &src)
     case AF_INET6:
       n = sizeof(sockaddr_in6);
       break;
+    case AF_UNIX:
+      break;
   }
   switch (dst.sa_family) {
     case AF_INET:
@@ -1034,6 +1053,12 @@ inline ObIpEndpoint& ObIpEndpoint::assign(const sockaddr &ip)
   return *this;
 }
 
+inline ObIpEndpoint& ObIpEndpoint::assign(const sockaddr_storage &ip)
+{
+  ops_ip_copy(sa_, ops_ip_sa_cast(ip));
+  return *this;
+}
+
 inline in_port_t& ObIpEndpoint::port()
 {
   return ops_ip_port_cast(sa_);
@@ -1061,6 +1086,7 @@ inline bool ObIpEndpoint::is_valid() const
 
 inline bool ObIpEndpoint::is_ip4() const { return AF_INET == sa_.sa_family; }
 inline bool ObIpEndpoint::is_ip6() const { return AF_INET6 == sa_.sa_family; }
+inline bool ObIpEndpoint::is_unix_domain() const { return AF_UNIX == sa_.sa_family; }
 inline uint16_t ObIpEndpoint::family() const { return sa_.sa_family; }
 
 inline ObIpEndpoint& ObIpEndpoint::set_to_any_addr(const int family)
diff --git a/src/obproxy/iocore/net/ob_net_accept.cpp b/src/obproxy/iocore/net/ob_net_accept.cpp
index 3827565c..c43c0ee5 100644
--- a/src/obproxy/iocore/net/ob_net_accept.cpp
+++ b/src/obproxy/iocore/net/ob_net_accept.cpp
@@ -32,6 +32,7 @@
 #include "iocore/net/ob_net_accept.h"
 #include "iocore/net/ob_net.h"
 #include "iocore/net/ob_event_io.h"
+#include "ob_proxy_init.h"
 #include "omt/ob_resource_unit_table_processor.h"
 #include "proxy/mysql/ob_mysql_client_session.h"
 #include "proxy/route/ob_table_cache.h"
@@ -264,7 +265,6 @@ int ObNetAccept::init_accept_per_thread()
 
 int ObNetAccept::do_listen(const bool non_blocking)
 {
-
   int ret = OB_SUCCESS;
   PROXY_NET_LOG(DEBUG, "ObNetAccept::do_listen", K(server_.fd_), K(non_blocking));
   const ObHotUpgraderInfo &info = get_global_hot_upgrade_info();
@@ -323,22 +323,34 @@ int ObNetAccept::do_listen(const bool non_blocking)
 int ObNetAccept::fetch_vip_tenant(ObUnixNetVConnection* vc, ObVipTenant& vip_tenant, bool& lookup_success)
 {
   int ret = OB_SUCCESS;
-  int32_t ip;
-  int32_t port;
   int64_t vid;
+  bool found = false;
+  ObConfigItem tenant_item;
+  ObConfigItem cluster_item;
   if (OB_ISNULL(vc)) {
     ret = OB_ERR_UNEXPECTED;
     PROXY_NET_LOG(WARN, "vc pointer is null", K(ret));
   } else {
-    ip = ntohl(vc->get_virtual_ip());
-    port = static_cast<int32_t>(vc->get_virtual_port());
     vid = static_cast<int64_t>(vc->get_virtual_vid());
-    vip_tenant.vip_addr_.set(ip, port, vid);
-    if (OB_FAIL(get_global_vip_tenant_processor().get_vip_tenant(vip_tenant))) {
-      PROXY_NET_LOG(DEBUG, "fail to get vip tenant", K(ret));
-      ret = OB_SUCCESS;
-    } else {
-      lookup_success = true;
+    vip_tenant.vip_addr_.set(vc->get_virtual_addr(), vid);
+    if (OB_FAIL(get_global_config_processor().get_proxy_config_with_level(
+      vip_tenant.vip_addr_, "", "", "proxy_tenant_name", tenant_item, "LEVEL_VIP", found))) {
+      PROXY_NET_LOG(WARN, "get proxy tenant name config failed", K(vip_tenant.vip_addr_), K(ret));
+    }
+
+    if (OB_SUCC(ret) && found) {
+      if (OB_FAIL(get_global_config_processor().get_proxy_config_with_level(
+        vip_tenant.vip_addr_, "", "", "rootservice_cluster_name", cluster_item, "LEVEL_VIP", found))) {
+        PROXY_NET_LOG(WARN, "get cluster name config failed", K(vip_tenant.vip_addr_), K(ret));
+      }
+    }
+
+    if (OB_SUCC(ret) && found) {
+      if (OB_FAIL(vip_tenant.set_tenant_cluster(tenant_item.str(), cluster_item.str()))) {
+        PROXY_CS_LOG(WARN, "set tenant and cluster name failed", K(tenant_item), K(cluster_item), K(ret));
+      } else {
+        lookup_success = true;
+      }
     }
   }
   return ret;
@@ -348,8 +360,8 @@ int ObNetAccept::fetch_tenant_cpu(ObVipTenant& vip_tenant, ObTenantCpu*& tenant_
 {
   int ret = OB_SUCCESS;
   ObString key_name;
-  char vip_name[OB_IP_STR_BUFF];
-  common::ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + OB_IP_STR_BUFF> key_string;
+  char vip_name[MAX_IP_ADDR_LENGTH];
+  common::ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + MAX_IP_ADDR_LENGTH> key_string;
   if (OB_UNLIKELY(!vip_tenant.vip_addr_.addr_.ip_to_string(vip_name, static_cast<int32_t>(sizeof(vip_name))))) {
     ret = OB_ERR_UNEXPECTED;
     PROXY_NET_LOG(WARN, "fail to covert ip to string", K(vip_name), K(ret));
diff --git a/src/obproxy/iocore/net/ob_net_vconnection.h b/src/obproxy/iocore/net/ob_net_vconnection.h
index 6ab615ea..6fa43201 100644
--- a/src/obproxy/iocore/net/ob_net_vconnection.h
+++ b/src/obproxy/iocore/net/ob_net_vconnection.h
@@ -419,35 +419,23 @@ class ObNetVConnection : public event::ObVConnection
   virtual int get_socket() = 0;
 
 public:
-  // Returns local ip.
-  // @deprecated get_local_addr() should be used instead for AF_INET6 compatibility.
-  in_addr_t get_local_ip();
   // Returns local port
   uint16_t get_local_port();
   // Returns local sockaddr storage
   const sockaddr &get_local_addr();
 
-  // Returns remote ip.
-  // @deprecated get_remote_addr() should be used instead for AF_INET6 compatibility.
-  in_addr_t get_remote_ip();
   // Returns remote port
   uint16_t get_remote_port();
   // Returns remote sockaddr storage
   const sockaddr &get_remote_addr();
 
-  // Returns virual ip.
-  // @deprecated get_virtual_addr() should be used instead for AF_INET6 compatibility.
-  in_addr_t get_virtual_ip();
   // Returns virtual port
   uint16_t get_virtual_port();
   // Returns virtual vid(vpc id)
   uint32_t get_virtual_vid();
   // Returns virtual sockaddr storage
   const sockaddr &get_virtual_addr();
-
   const sockaddr &get_real_client_addr();
-  in_addr_t get_real_client_ip();
-  uint16_t get_real_client_port();
 
   // Force an event if a write operation empties the write buffer.
   //
@@ -476,7 +464,7 @@ class ObNetVConnection : public event::ObVConnection
   ObIpEndpoint local_addr_;   // it is local proxy addr
   ObIpEndpoint remote_addr_;  // if from accept, it is client addr, otherwise it is server addr
   ObIpEndpoint real_client_addr_;
-  ObIpEndpoint virtual_addr_;
+  ObIpEndpoint virtual_addr_; // vip addr
   uint32_t virtual_vid_;
 
   bool got_local_addr_;
@@ -504,13 +492,6 @@ inline ObNetVConnection::ObNetVConnection()
   ob_zero(real_client_addr_);
 }
 
-// local
-inline in_addr_t ObNetVConnection::get_local_ip()
-{
-  const sockaddr addr = get_local_addr();
-  return ops_is_ip4(addr) ? ops_ip4_addr_cast(addr) : 0;
-}
-
 //@return The local port in host order.
 inline uint16_t ObNetVConnection::get_local_port()
 {
@@ -530,13 +511,6 @@ inline const sockaddr &ObNetVConnection::get_local_addr()
   return local_addr_.sa_;
 }
 
-// remote
-inline in_addr_t ObNetVConnection::get_remote_ip()
-{
-  const sockaddr &addr = get_remote_addr();
-  return ops_is_ip4(addr) ? ops_ip4_addr_cast(addr) : 0;
-}
-
 // @return The remote port in host order.
 inline uint16_t ObNetVConnection::get_remote_port()
 {
@@ -561,17 +535,6 @@ inline const sockaddr &ObNetVConnection::get_real_client_addr()
   return real_client_addr_.sa_;
 }
 
-inline in_addr_t ObNetVConnection::get_real_client_ip()
-{
-  const sockaddr addr = get_real_client_addr();
-  return ops_is_ip4(addr) ? ops_ip4_addr_cast(addr) : 0;
-}
-
-inline uint16_t ObNetVConnection::get_real_client_port()
-{
-  return ops_ip_port_host_order(get_real_client_addr());
-}
-
 // virtual
 inline const sockaddr &ObNetVConnection::get_virtual_addr()
 {
@@ -582,12 +545,6 @@ inline const sockaddr &ObNetVConnection::get_virtual_addr()
   return virtual_addr_.sa_;
 }
 
-inline in_addr_t ObNetVConnection::get_virtual_ip()
-{
-  const sockaddr addr = get_virtual_addr();
-  return ops_is_ip4(addr) ? ops_ip4_addr_cast(addr) : 0;
-}
-
 inline uint16_t ObNetVConnection::get_virtual_port()
 {
   return ops_ip_port_host_order(get_virtual_addr());
@@ -595,6 +552,10 @@ inline uint16_t ObNetVConnection::get_virtual_port()
 
 inline uint32_t ObNetVConnection::get_virtual_vid()
 {
+  if (!got_virtual_addr_) {
+    set_virtual_addr();
+    got_virtual_addr_ = true;
+  }
   return virtual_vid_;
 }
 
diff --git a/src/obproxy/iocore/net/ob_unix_net.cpp b/src/obproxy/iocore/net/ob_unix_net.cpp
index a2410a82..37d4a289 100644
--- a/src/obproxy/iocore/net/ob_unix_net.cpp
+++ b/src/obproxy/iocore/net/ob_unix_net.cpp
@@ -82,6 +82,17 @@ static inline int net_signal_hook_function(ObEThread &thread)
   return ret;
 }
 
+void send_signal_when_exit_normally()
+{
+  if (g_proxy_fatal_errcode == OB_SUCCESS) {
+    pid_t parent_pid= getppid();
+    if (parent_pid != 1) {
+      PROXY_NET_LOG(INFO, "obproxy child will send SIGUSR2 to parent", K(parent_pid));
+      kill(parent_pid, SIGUSR2);
+    }
+  }
+}
+
 void proxy_exit_once()
 {
   // no connection opened, graceful exit flag is true, graceful exit timeout, exit!!
@@ -100,7 +111,7 @@ void proxy_exit_once()
     }
     ret = OB_SUCCESS;//ignore error
   }
-  OB_LOGGER.destory_async_log_thread();
+  OB_LOGGER.destroy_async_log_thread();
   _exit(1);
 }
 
@@ -309,6 +320,7 @@ int ObInactivityCop::check_inactivity(int event, ObEvent *e)
 
       if (global_connections > 0) {
         if (info.graceful_exit_end_time_ >= info.graceful_exit_start_time_ && info.graceful_exit_end_time_ <= now) {
+          send_signal_when_exit_normally();
           pthread_once(&g_exit_once, proxy_exit_once);
         } else {
           int64_t thread_local_client_connections = 0;
@@ -317,6 +329,7 @@ int ObInactivityCop::check_inactivity(int event, ObEvent *e)
                         K(global_connections), K(thread_local_client_connections), K(g_proxy_fatal_errcode));
         }
       } else {
+        send_signal_when_exit_normally();
         pthread_once(&g_exit_once, proxy_exit_once);
       }
     } else {
@@ -349,7 +362,7 @@ int ObInactivityCop::check_inactivity(int event, ObEvent *e)
           PROXY_NET_LOG(WARN, "fail to close unix net vconnection", K(vc), K(close_ret));
         }
       } else {
-
+        int32_t event = EVENT_NONE;
         if (vc->get_is_force_timeout()
             || (info.graceful_exit_end_time_ >= info.graceful_exit_start_time_
                 && info.graceful_exit_end_time_ > 0
@@ -358,13 +371,12 @@ int ObInactivityCop::check_inactivity(int event, ObEvent *e)
         }
 
         if (now != vc->next_inactivity_timeout_at_) {
-          ObIpEndpoint ip;
-          ip.sa_ = vc->get_remote_addr();
+          ObIpEndpoint ip(vc->get_remote_addr());
           if (0 < get_global_proxy_config().server_detect_mode
               && vc->source_type_ == ObUnixNetVConnection::VC_CONNECT
               && OB_HASH_EXIST == get_global_resource_pool_processor().ip_set_.exist_refactored(ip)) {
-            PROXY_NET_LOG(WARN, "server dead, close connection", K(ip));
-            vc->next_inactivity_timeout_at_ = now;
+            PROXY_NET_LOG(WARN, "detect server dead, close connection", K(ip));
+            event = EVENT_ERROR;
           }
         }
 
@@ -391,6 +403,8 @@ int ObInactivityCop::check_inactivity(int event, ObEvent *e)
                         "next_inactivity_timeout_at", hrtime_to_sec(vc->next_inactivity_timeout_at_),
                         "inactivity_timeout_in", hrtime_to_sec(vc->inactivity_timeout_in_));
           vc->handle_event(EVENT_IMMEDIATE, e);
+        } else if (EVENT_NONE != event) {
+          vc->handle_event(event, e);
         }
       }
     }
diff --git a/src/obproxy/iocore/net/ob_unix_net_processor.cpp b/src/obproxy/iocore/net/ob_unix_net_processor.cpp
index d6ad29d2..27f409d1 100644
--- a/src/obproxy/iocore/net/ob_unix_net_processor.cpp
+++ b/src/obproxy/iocore/net/ob_unix_net_processor.cpp
@@ -459,6 +459,15 @@ class ObCheckConnect : public ObContinuation
         }
         break;
 
+      case VC_EVENT_DETECT_SERVER_DEAD:
+        PROXY_NET_LOG(WARN, "detect server addr dead", "addr", vc_->con_.addr_, K(this));
+        vc_->do_io_close();
+        if (!action_.cancelled_) {
+          action_.continuation_->handle_event(NET_EVENT_OPEN_FAILED,
+                                              reinterpret_cast<void *>(-ENET_CONNECT_FAILED));
+        }
+        break;
+
       default:
         PROXY_NET_LOG(WARN, "unknown connect event");
         if (!action_.cancelled_) {
diff --git a/src/obproxy/iocore/net/ob_unix_net_vconnection.cpp b/src/obproxy/iocore/net/ob_unix_net_vconnection.cpp
index b865ce7d..764248eb 100644
--- a/src/obproxy/iocore/net/ob_unix_net_vconnection.cpp
+++ b/src/obproxy/iocore/net/ob_unix_net_vconnection.cpp
@@ -117,6 +117,7 @@ inline int ObUnixNetVConnection::read_signal_and_update(const int event)
     case VC_EVENT_ERROR:
     case VC_EVENT_ACTIVE_TIMEOUT:
     case VC_EVENT_INACTIVITY_TIMEOUT:
+    case VC_EVENT_DETECT_SERVER_DEAD:
       PROXY_NET_LOG(DEBUG, "null read.vio cont, closing vc", K(event), K(this));
       closed_ = 1;
       break;
@@ -151,6 +152,7 @@ inline int ObUnixNetVConnection::write_signal_and_update(const int event)
     case VC_EVENT_ERROR:
     case VC_EVENT_ACTIVE_TIMEOUT:
     case VC_EVENT_INACTIVITY_TIMEOUT:
+    case VC_EVENT_DETECT_SERVER_DEAD:
       PROXY_NET_LOG(DEBUG, "null write.vio cont, closing vc", K(event), K(this));
       closed_ = 1;
       break;
@@ -1192,6 +1194,32 @@ void ObUnixNetVConnection::remove_from_keep_alive_lru()
   }
 }
 
+int ObUnixNetVConnection::set_virtual_addr()
+{
+  int ret = OB_SUCCESS;
+  get_remote_addr();
+
+  if (OB_UNLIKELY(get_global_proxy_config().enable_qa_mode)) {
+    // Simulate public cloud SLB to assign IP addresses
+    // Get the real client address first, then modify the virutal address
+    do_set_virtual_addr();
+    if (OB_FAIL(ops_ip_pton(get_global_proxy_config().qa_mode_mock_public_cloud_slb_addr, virtual_addr_))) {
+      PROXY_CS_LOG(WARN, "fail to ops ip pton", "qa_mode_mock_public_cloud_slb_addr",
+                   get_global_proxy_config().qa_mode_mock_public_cloud_slb_addr, K(ret));
+    } else {
+      virtual_vid_ = static_cast<uint32_t>(get_global_proxy_config().qa_mode_mock_public_cloud_vid);
+    }
+  } else if (remote_addr_.is_ip4()) {
+    ret = do_set_virtual_addr();
+  } else {
+    real_client_addr_ = remote_addr_;
+    virtual_addr_ = remote_addr_;
+    virtual_addr_.sin6_.sin6_port = htons(2883);
+  }
+
+  return ret;
+}
+
 int ObUnixNetVConnection::do_set_virtual_addr()
 {
   int ret = OB_SUCCESS;
@@ -1234,27 +1262,6 @@ int ObUnixNetVConnection::do_set_virtual_addr()
   return ret;
 }
 
-int ObUnixNetVConnection::set_virtual_addr()
-{
-  int ret = OB_SUCCESS;
-
-  if (OB_UNLIKELY(get_global_proxy_config().enable_qa_mode)) {
-    // SLB to simulate public cloud allocation of IP addresses
-    // First obtain the real client address, and then modify the virutal address
-    do_set_virtual_addr();
-    if (OB_FAIL(ops_ip_pton(get_global_proxy_config().qa_mode_mock_public_cloud_slb_addr, virtual_addr_))) {
-      PROXY_CS_LOG(WARN, "fail to ops ip pton", "qa_mode_mock_public_cloud_slb_addr",
-                   get_global_proxy_config().qa_mode_mock_public_cloud_slb_addr, K(ret));
-    } else {
-      virtual_vid_ = static_cast<uint32_t>(get_global_proxy_config().qa_mode_mock_public_cloud_vid);
-    }
-  } else {
-    ret = do_set_virtual_addr();
-  }
-
-  return ret;
-}
-
 int ObUnixNetVConnection::apply_options()
 {
   int ret = OB_SUCCESS;
@@ -1465,7 +1472,7 @@ int ObUnixNetVConnection::main_event(int event, ObEvent *e)
   if (OB_ISNULL(e)) {
     ret = OB_ERR_UNEXPECTED;
     PROXY_NET_LOG(WARN, "occur fatal error", K(event), K(e), K(ret));
-  } else if (OB_UNLIKELY(EVENT_IMMEDIATE != event && EVENT_INTERVAL != event)) {
+  } else if (OB_UNLIKELY(EVENT_IMMEDIATE != event && EVENT_INTERVAL != event && EVENT_ERROR != event)) {
     ret = OB_ERR_UNEXPECTED;
     PROXY_NET_LOG(WARN, "occur fatal error", K(event), K(e), K(ret));
   } else if (thread_ != this_ethread()) {
@@ -1506,6 +1513,8 @@ int ObUnixNetVConnection::main_event(int event, ObEvent *e)
           signal_event = VC_EVENT_INACTIVITY_TIMEOUT;
           signal_timeout_at = &next_inactivity_timeout_at_;
         }
+      } else if (EVENT_ERROR == event) {
+        signal_event = VC_EVENT_DETECT_SERVER_DEAD;
       } else {
         signal_event = VC_EVENT_ACTIVE_TIMEOUT;
         signal_timeout = &active_timeout_action_;
diff --git a/src/obproxy/ob_proxy.cpp b/src/obproxy/ob_proxy.cpp
index b94a9f15..cc8444a7 100644
--- a/src/obproxy/ob_proxy.cpp
+++ b/src/obproxy/ob_proxy.cpp
@@ -75,6 +75,7 @@
 #include "obutils/ob_session_pool_processor.h"
 #include "obutils/ob_config_processor.h"
 #include "iocore/net/ob_ssl_processor.h"
+#include "ob_proxy_init.h"
 
 using namespace oceanbase::common;
 using namespace oceanbase::share;
@@ -194,9 +195,11 @@ int ObProxy::init(ObProxyOptions &opts, ObAppVersionInfo &proxy_version)
       } else if (OB_FAIL(app_config_processor.init())) {
         LOG_ERROR("fail to init app config processor", K(ret));
       } else {
-        // if fail to init prometheus, do not stop the startup of obproxy
-        if (g_ob_prometheus_processor.init()) {
-          LOG_WARN("fail to init prometheus processor");
+        if (RUN_MODE_PROXY == g_run_mode) {
+          // if fail to init prometheus, do not stop the startup of obproxy
+          if (OB_FAIL(g_ob_prometheus_processor.init())) {
+            LOG_WARN("fail to init prometheus processor", K(ret));
+          }
         }
 
 #if OB_HAS_TESTS
@@ -247,9 +250,33 @@ void ObProxy::destroy()
     if (OB_FAIL(ObAsyncCommonTask::destroy_repeat_task(mmp_init_cont_))) {
       LOG_WARN("fail to destroy meta proxy init task", K(ret));
     }
+    ObThreadId tid = 0;
+    for (int64_t i = 0; i < g_event_processor.dedicate_thread_count_ && OB_SUCC(ret); ++i) {
+      tid = g_event_processor.all_dedicate_threads_[i]->tid_;
+      if (OB_FAIL(thread_cancel(tid))) {
+        PROXY_NET_LOG(WARN, "fail to do thread_cancel", K(tid), K(ret));
+      } else if (OB_FAIL(thread_join(tid))) {
+        PROXY_NET_LOG(WARN, "fail to do thread_join", K(tid), K(ret));
+      } else {
+        PROXY_NET_LOG(INFO, "graceful exit, dedicated thread exited", K(tid));
+      }
+      ret = OB_SUCCESS;//ignore error
+    }
+
+    for (int64_t i = 0; i < g_event_processor.event_thread_count_ && OB_SUCC(ret); ++i) {
+      tid = g_event_processor.all_event_threads_[i]->tid_;
+      if (OB_FAIL(thread_cancel(tid))) {
+        PROXY_NET_LOG(WARN, "fail to do thread_cancel", K(tid), K(ret));
+      } else if (OB_FAIL(thread_join(tid))) {
+        PROXY_NET_LOG(WARN, "fail to do thread_join", K(tid), K(ret));
+      } else {
+        PROXY_NET_LOG(INFO, "graceful exit, event thread exited", K(tid));
+      }
+      ret = OB_SUCCESS;//ignore error
+    }
 
-    proxy_opts_ = NULL;
-    mysql_config_params_ = NULL;
+    OB_LOGGER.destroy_async_log_thread();
+    _exit(0);
   }
 }
 
@@ -347,9 +374,11 @@ int ObProxy::start()
     } else if (OB_FAIL(ObMysqlProxyServerMain::start_mysql_proxy_acceptor())) {
       LOG_ERROR("fail to start accept server", K(ret));
     } else {
-      // if fail to init prometheus, do not stop the startup of obproxy
-      if (g_ob_prometheus_processor.start_prometheus()) {
-        LOG_WARN("fail to start prometheus");
+      if (RUN_MODE_PROXY == g_run_mode) {
+        // if fail to init prometheus, do not stop the startup of obproxy
+        if (OB_FAIL(g_ob_prometheus_processor.start_prometheus())) {
+          LOG_WARN("fail to start prometheus", K(ret));
+        }
       }
 
       mysql_config_params_ = NULL;
@@ -373,7 +402,9 @@ int ObProxy::start()
         }
         info.is_parent_ = true;
       }
-      this_ethread()->execute();
+      if (RUN_MODE_PROXY == g_run_mode) {
+        this_ethread()->execute();
+      }
     }
   }
   return ret;
@@ -411,7 +442,7 @@ int ObProxy::init_user_specified_config()
 {
   int ret = OB_SUCCESS;
   //1. set config from cmd -o name=value
-  if (NULL != proxy_opts_->optstr_ && OB_FAIL(config_->add_extra_config(proxy_opts_->optstr_))) {
+  if (NULL != proxy_opts_->optstr_ && OB_FAIL(config_->add_extra_config_from_opt(proxy_opts_->optstr_))) {
     LOG_WARN("fail to add extra config", K(ret));
 
   //2. set config from cmd other opts
@@ -958,7 +989,7 @@ int ObProxy::get_meta_table_server(ObIArray<ObProxyReplicaLocation> &replicas, O
     if (rs_list.count() <= 0) {
       ret = OB_ERR_UNEXPECTED;
       LOG_WARN("rs_list count must > 0", K(ret));
-    } else if (OB_FAIL(raw_client.init(user_name, password, database, password1))) {
+    } else if (OB_FAIL(raw_client.init(user_name, password, database, cluster_name, password1))) {
       LOG_WARN("fail to init raw mysql client", K(ret));
     } else if (OB_FAIL(raw_client.set_server_addr(rs_list))) {
       LOG_WARN("fail to set server addr", K(ret));
diff --git a/src/obproxy/ob_proxy_init.cpp b/src/obproxy/ob_proxy_init.cpp
new file mode 100644
index 00000000..4300cfe6
--- /dev/null
+++ b/src/obproxy/ob_proxy_init.cpp
@@ -0,0 +1,130 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ *
+ * *************************************************************
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <malloc.h>
+#include "ob_proxy_main.h"
+#include "lib/oblog/ob_warning_buffer.h"
+#include "ob_proxy_init.h"
+#include "lib/json/ob_json.h"
+#include "obutils/ob_proxy_json_config_info.h"
+
+using namespace oceanbase::common;
+using namespace oceanbase::json;
+using namespace oceanbase::obproxy::obutils;
+
+namespace oceanbase
+{
+namespace obproxy
+{
+
+OBPROXY_RUN_MODE g_run_mode = RUN_MODE_PROXY;
+static bool is_obproxy_inited = false;
+DRWLock local_init_lock;
+
+int init_obproxy_client(const ObString &config)
+{
+  int ret = OB_SUCCESS;
+  if (!is_obproxy_inited) {
+    DRWLock::WRLockGuard lock(local_init_lock);
+    if (!is_obproxy_inited) {
+      static const int DEFAULT_MMAP_MAX_VAL = 1024 * 1024 * 1024; // 1G
+      mallopt(M_MMAP_MAX, DEFAULT_MMAP_MAX_VAL);
+      mallopt(M_ARENA_MAX, 1); // disable malloc multiple arena pool
+
+      setlocale(LC_ALL, "");
+
+      // turn warn log on so that there's a obproxy.log.wf file which records
+      // all WARN and ERROR logs in log directory.
+      ObWarningBuffer::set_warn_log_on(true);
+      // DISABLE_DIA(); disable di_cache stat
+
+      g_run_mode = RUN_MODE_CLIENT;
+      int argc = 0;
+      char argv[10][4096];
+      memset(argv, 0, sizeof(argv));
+      MEMCPY(argv[0], "./bin/obproxy", strlen("./bin/obproxy"));
+      argc++;
+      if (!config.empty()) {
+        Parser parser;
+        json::Value *json_value = NULL;
+        ObArenaAllocator json_allocator(ObModIds::OB_JSON_PARSER);
+        if (OB_FAIL(parser.init(&json_allocator))) {
+          MPRINT("json parser init failed, ret =%d", ret);
+        } else if (OB_FAIL(parser.parse(config.ptr(), config.length(), json_value))) {
+          MPRINT("json parse failed, ret =%d", ret);
+        } else if (OB_FAIL(ObProxyJsonUtils::check_config_info_type(json_value, json::JT_OBJECT))) {
+          MPRINT("check config info type failed, ret=%d", ret);
+        } else {
+          DLIST_FOREACH(p, json_value->get_object()) {
+            if (0 == p->name_.case_compare("proxy_config")) {
+              if (OB_FAIL(ObProxyJsonUtils::check_config_info_type(p->value_, json::JT_STRING))) {
+                MPRINT("check config info type failed, ret=%d", ret);
+              } else {
+                MEMCPY(argv[argc++], "-o", strlen("-o"));
+                MEMCPY(argv[argc++], p->value_->get_string().ptr(), p->value_->get_string().length());
+              }
+            }
+          }
+        }
+      }
+
+      if (OB_SUCC(ret)) {
+        char *tmp_argv[10];
+        for (int i = 0; i < argc; i++) {
+          tmp_argv[i] = argv[i];
+        }
+        ObProxyMain *proxy_main = ObProxyMain::get_instance();
+        if (OB_ISNULL(proxy_main)) {
+          ret = OB_ERR_UNEXPECTED;
+          MPRINT("fail to get obproxy main instance, ret=%d", ret);
+        } else if (OB_FAIL(proxy_main->start(argc, tmp_argv))) {
+          MPRINT("fail to start obproxy, ret=%d", ret);
+        } else {
+          is_obproxy_inited = true;
+          atexit(destroy_obproxy_client);
+        }
+      }
+    }
+  }
+
+  return ret;
+}
+
+void destroy_obproxy_client()
+{
+  ObProxyMain *proxy_main = ObProxyMain::get_instance();
+  if (OB_NOT_NULL(proxy_main)) {
+    proxy_main->destroy();
+  }
+}
+
+}
+}
+
diff --git a/src/obproxy/ob_proxy_init.h b/src/obproxy/ob_proxy_init.h
new file mode 100644
index 00000000..4c76fc2b
--- /dev/null
+++ b/src/obproxy/ob_proxy_init.h
@@ -0,0 +1,58 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ *
+ * *************************************************************
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef OBPROXY_INIT_H_
+#define OBPROXY_INIT_H_
+
+namespace oceanbase
+{
+namespace common
+{
+class ObString;
+}
+namespace obproxy
+{
+enum OBPROXY_RUN_MODE {
+  RUN_MODE_PROXY,
+  RUN_MODE_CLIENT,
+  RUN_MODE_INVALID,
+};
+
+extern OBPROXY_RUN_MODE g_run_mode;
+
+int init_obproxy_client(const common::ObString& config);
+
+void destroy_obproxy_client();
+
+} // end of obproxy
+} // end of oceanbase
+
+
+#endif
diff --git a/src/obproxy/ob_proxy_main.cpp b/src/obproxy/ob_proxy_main.cpp
index 9a38e14c..3a5161b3 100644
--- a/src/obproxy/ob_proxy_main.cpp
+++ b/src/obproxy/ob_proxy_main.cpp
@@ -28,6 +28,7 @@
 #include "obutils/ob_async_common_task.h"
 
 #include "cmd/ob_show_sqlaudit_handler.h"
+#include "ob_proxy_init.h"
 
 using namespace oceanbase::common;
 using namespace oceanbase::lib;
@@ -400,6 +401,8 @@ int ObProxyMain::get_log_file_name(const ObLogFDType type, char *file_name, cons
       ret_len = snprintf(log_file_name, OB_MAX_LOG_FILE_NAME_LEN, "obproxy_pool_stat.log");
     } else if (FD_TRACE_FILE == type) {
       ret_len = snprintf(log_file_name, OB_MAX_LOG_FILE_NAME_LEN, "obproxy_trace.log");
+    } else if (FD_DRIVER_CLIENT_FILE == type) {
+      ret_len = snprintf(log_file_name, OB_MAX_LOG_FILE_NAME_LEN, "obproxy_client.log");
     } else {
       ret_len = snprintf(log_file_name, OB_MAX_LOG_FILE_NAME_LEN, "obproxy.log");
     }
@@ -436,7 +439,7 @@ int ObProxyMain::start(const int argc, char *const argv[])
   ObProxyOptions opts;
   memset(&opts, 0, sizeof(opts));
 
-  if (OB_FAIL(print_args(argc, argv))) {
+  if (RUN_MODE_PROXY == g_run_mode && OB_FAIL(print_args(argc, argv))) {
     MPRINT("fail to print args, ret=%d", ret);
   } else if (OB_FAIL(parse_cmd_line(argc, argv, opts))) {
     if (OB_NOT_RUNNING != ret) {
@@ -448,7 +451,7 @@ int ObProxyMain::start(const int argc, char *const argv[])
 
   const ObHotUpgraderInfo &info = get_global_hot_upgrade_info();
   // if inherited, don not use daemon
-  if (OB_SUCC(ret)) {
+  if (RUN_MODE_PROXY == g_run_mode && OB_SUCC(ret)) {
     if (!opts.nodaemon_ && !info.is_inherited_) {
       if (OB_FAIL(use_daemon())) {
         MPRINT("fail to use deamon, ret=%d", ret);
@@ -456,16 +459,16 @@ int ObProxyMain::start(const int argc, char *const argv[])
     }
   }
 
-  if (OB_SUCC(ret)) {
+  if (RUN_MODE_PROXY == g_run_mode && OB_SUCC(ret)) {
     if (info.is_inherited_) {
-      if (OB_FAIL(close_all_fd(info.fd_))) {
+      if (OB_FAIL(close_all_fd(info.ipv4_fd_, info.ipv6_fd_))) {
         MPRINT("fail to close all fd, ret=%d", ret);
       }
     }
   }
 
   if (OB_SUCC(ret)) {
-    if (OB_FAIL(get_global_layout().init(info.argv_[0]))) {
+    if (OB_FAIL(get_global_layout().init(argv[0]))) {
       MPRINT("fail to init global layout, ret=%d", ret);
     } else if (OB_FAIL(init_log())) {
       MPRINT("fail to init log, ret=%d", ret);
@@ -477,7 +480,8 @@ int ObProxyMain::start(const int argc, char *const argv[])
       app_info_.setup(PACKAGE_STRING, APP_NAME, RELEASEID);
       _LOG_INFO("%s-%s", app_info_.full_version_info_str_, build_version());
       if (info.is_inherited_) {
-        LOG_INFO("obproxy will start by hot upgrade", " listen fd", info.fd_, K(info));
+        LOG_INFO("obproxy will start by hot upgrade", " listen ipv4 fd", info.ipv4_fd_,
+                        "listen ipv6 fd", info.ipv6_fd_, K(info));
       } else {
         LOG_INFO("has no inherited sockets, start new obproxy", K(info));
       }
@@ -495,18 +499,28 @@ int ObProxyMain::handle_inherited_sockets(const int argc, char *const argv[])
   int ret = OB_SUCCESS;
   ObHotUpgraderInfo &info = get_global_hot_upgrade_info();
 
-  if (OB_UNLIKELY(argc <= 0) || OB_ISNULL(argv) || OB_ISNULL(argv[0])) {
+  if (RUN_MODE_CLIENT == g_run_mode) {
+    // do nothing
+  } else if (OB_UNLIKELY(argc <= 0) || OB_ISNULL(argv) || OB_ISNULL(argv[0])) {
     ret = OB_INVALID_ARGUMENT;
     MPRINT("invalid argument, argc=%d, argv=%p, ret=%d", argc, argv, ret);
   } else {
     info.set_main_arg(argc, argv);
-    char *inherited = NULL;
+    char *inherited_ipv4 = NULL;
+    char *inherited_ipv6 = NULL;
 
-    if (NULL == (inherited = getenv(OBPROXY_INHERITED_FD))) {
+    inherited_ipv4 = getenv(OBPROXY_INHERITED_IPV4_FD);
+    inherited_ipv6 = getenv(OBPROXY_INHERITED_IPV6_FD);
+    if (NULL == inherited_ipv4 && NULL == inherited_ipv6) {
       // has no inherited sockets, will start new obproxy,
       // and set it HU_STATE_WAIT_HU_CMD state
       info.update_state(HU_STATE_WAIT_HU_CMD);
       info.is_parent_ = true;
+    } else if (NULL == inherited_ipv4) {
+      // Allow IPv6 to be empty
+      // because it may be a hot upgrade from a lower version to a higher version
+      ret = OB_ERR_UNEXPECTED;
+      LOG_ERROR("ipv4 should not be NULL", K(ret));
     } else if (info.is_inherited_) {
       ret = OB_ERR_UNEXPECTED;
       MPRINT("hot upgrade info is_inherited can't be true, ret=%d", ret);
@@ -514,11 +528,18 @@ int ObProxyMain::handle_inherited_sockets(const int argc, char *const argv[])
       // obproxy will start by hot upgrade
       // we will set it HU_STATE_WAIT_CR_CMD state and HU_STATUS_NEW_PROXY_CREATED_SUCC status
       info.is_inherited_ = true;
-      info.fd_ = atoi(inherited);
+      info.ipv4_fd_ = atoi(inherited_ipv4);
+
+      if (NULL != inherited_ipv6) {
+        info.ipv6_fd_ = atoi(inherited_ipv6);
+      }
+
       info.update_state(HU_STATE_WAIT_HU_CMD);
       info.is_parent_ = false;
-      if (OB_FAIL(unsetenv(OBPROXY_INHERITED_FD))) {
-        MPRINT("fail to unsetenv OBPROXY_INHERITED_FD, ret=%d", ret);
+      if (OB_FAIL(unsetenv(OBPROXY_INHERITED_IPV4_FD))) {
+        MPRINT("fail to unsetenv OBPROXY_INHERITED_IPV4_FD, ret=%d", ret);
+      } else if (OB_FAIL(unsetenv(OBPROXY_INHERITED_IPV6_FD))) {
+        MPRINT("fail to unsetenv OBPROXY_INHERITED_IPV6_FD, ret=%d", ret);
       }
     }
   }
@@ -536,7 +557,13 @@ int ObProxyMain::init_log()
       LOG_ERROR("fail to get log file name", K(type), K(ret));
     } else {
       if (FD_DEFAULT_FILE == type) {
-        OB_LOGGER.set_file_name(type, log_file_name, true, true);
+        if (RUN_MODE_PROXY == g_run_mode) {
+          OB_LOGGER.set_file_name(type, log_file_name, true, true);
+        } else if (RUN_MODE_CLIENT == g_run_mode) {
+          OB_LOGGER.set_file_name(type, log_file_name, false, true);
+        } else {
+          MPRINT("invalid g_run_mode, mode=%d", g_run_mode);
+        }
       } else {
         OB_LOGGER.set_file_name(type, log_file_name);
       }
@@ -578,6 +605,8 @@ int ObProxyMain::init_signal()
     LOG_WARN("fail to add_sig_direct_catched", K(ret));
   } else if (OB_FAIL(add_sig_direct_catched(action, SIGUSR1))) {
     LOG_WARN("fail to add_sig_direct_catched", K(ret));
+  } else if (OB_FAIL(add_sig_direct_catched(action, SIGUSR2))) {
+    LOG_WARN("fail to add_sig_direct_catched", K(ret));
   } else if (OB_FAIL(add_sig_direct_catched(action, 43))) {
     LOG_WARN("fail to add_sig_direct_catched", K(ret));
 
@@ -738,16 +767,17 @@ int ObProxyMain::do_detect_sig()
         // -1      : wait for any sub process
         while((pid = waitpid(-1, &stat, WNOHANG)) > 0) {
           LOG_INFO("sub process exit", K(info), K(pid), "status", stat, KERRMSGS);
-          if (info.sub_pid_ == pid) {
-            info.reset_sub_pid();
-            // after sub was exited, we need passing this status
-            if (OB_LIKELY(common::OB_SUCCESS == lib::mutex_acquire(&info.hot_upgrade_mutex_))) {
+          if (OB_LIKELY(common::OB_SUCCESS == lib::mutex_acquire(&info.hot_upgrade_mutex_))) {
+            if (info.sub_pid_ == pid) {
+              info.reset_sub_pid();
+              // after sub was exited, we need passing this status
               info.update_sub_status(HU_STATUS_EXITED);
               info.parent_hot_upgrade_flag_ = false;
               lib::mutex_release(&info.hot_upgrade_mutex_);
+            } else {
+              LOG_WARN("sub process exit, but recv it late");
             }
-          } else {
-            LOG_WARN("sub process exit, but recv it late");
+            lib::mutex_release(&info.hot_upgrade_mutex_);
           }
         }
         break;
@@ -826,6 +856,17 @@ void ObProxyMain::sig_direct_handler(const int sig)
       }
       break;
     }
+    case SIGUSR2: {
+      ObHotUpgraderInfo &info = get_global_hot_upgrade_info();
+      if (OB_LIKELY(common::OB_SUCCESS == lib::mutex_acquire(&info.hot_upgrade_mutex_))) {
+        // If the SIGUSR2 signal is received,
+        // the child process is considered to exit normally,
+        // and the child process is ignored
+        info.reset_sub_pid();
+        lib::mutex_release(&info.hot_upgrade_mutex_);
+      }
+      break;
+    }
     case SIGTERM:
     case SIGINT: {
       ObHotUpgraderInfo &info = get_global_hot_upgrade_info();
@@ -945,7 +986,7 @@ int ObProxyMain::do_monitor_mem()
     }
   }
 
-  if (is_out_of_mem_limit) {
+  if (is_out_of_mem_limit && RUN_MODE_PROXY == g_run_mode) {
     LOG_ERROR("obproxy's memroy is out of limit, will be going to commit suicide",
               K(mem_limited), "OTHER_MEMORY_SIZE", static_cast<int64_t>(OTHER_MEMORY_SIZE),
               K(is_out_of_mem_limit), K(cur_pos));
@@ -1033,7 +1074,7 @@ int ObProxyMain::do_detect_sqlaudit()
   return ret;
 }
 
-int ObProxyMain::close_all_fd(const int32_t listen_fd)
+int ObProxyMain::close_all_fd(const int32_t listen_ipv4_fd, const int32_t listen_ipv6_fd)
 {
   //this func can't print log, because log isn't initialized
   int ret = OB_SUCCESS;
@@ -1042,7 +1083,7 @@ int ObProxyMain::close_all_fd(const int32_t listen_fd)
   DIR *fd_dir = NULL;
   char fd_dir_path [OB_MAX_FILE_NAME_LENGTH];
 
-  if (OB_UNLIKELY(listen_fd < 3)) {
+  if (OB_UNLIKELY(listen_ipv4_fd < 3 && listen_ipv6_fd < 3)) {
     ret = OB_INVALID_ARGUMENT;
   } else {
     int n = snprintf(fd_dir_path, OB_MAX_FILE_NAME_LENGTH, "/proc/%d/fd", pid);
@@ -1062,7 +1103,8 @@ int ObProxyMain::close_all_fd(const int32_t listen_fd)
             fd = static_cast<int32_t>(strtol(de->d_name, NULL, 10));
             if (fd < 0) {
               continue;
-            } else if (fd < 3 || fd == dirfd(fd_dir) || fd == listen_fd) {
+            } else if (fd < 3 || fd == dirfd(fd_dir) || fd == listen_ipv4_fd
+                       || fd == listen_ipv6_fd) {
               continue;
             } else {
               if (OB_UNLIKELY(0 != close(fd))) {
diff --git a/src/obproxy/ob_proxy_main.h b/src/obproxy/ob_proxy_main.h
index e2985781..35a5d8a4 100644
--- a/src/obproxy/ob_proxy_main.h
+++ b/src/obproxy/ob_proxy_main.h
@@ -86,7 +86,7 @@ class ObProxyMain
   int init_log();
   int init_signal();
 
-  int close_all_fd(const int32_t listen_fd);
+  int close_all_fd(const int32_t listen_ipv4_fd, const int32_t listen_ipv6_fd);
 
   class ObLogLevel
   {
diff --git a/src/obproxy/obutils/ob_async_common_task.cpp b/src/obproxy/obutils/ob_async_common_task.cpp
index 501541f0..cb05e6f1 100644
--- a/src/obproxy/obutils/ob_async_common_task.cpp
+++ b/src/obproxy/obutils/ob_async_common_task.cpp
@@ -117,7 +117,7 @@ int ObAsyncCommonTask::main_handler(int event, void *data)
   return EVENT_DONE;
 }
 
-inline int ObAsyncCommonTask::handle_event_start()
+int ObAsyncCommonTask::handle_event_start()
 {
   int ret = OB_SUCCESS;
   if (action_.cancelled_) {
@@ -134,7 +134,7 @@ inline int ObAsyncCommonTask::handle_event_start()
   return ret;
 }
 
-inline int ObAsyncCommonTask::handle_event_complete(void *data)
+int ObAsyncCommonTask::handle_event_complete(void *data)
 {
   int ret = OB_SUCCESS;
   if (action_.cancelled_) {
diff --git a/src/obproxy/obutils/ob_config_processor.cpp b/src/obproxy/obutils/ob_config_processor.cpp
index 08ae8b37..19dd9004 100644
--- a/src/obproxy/obutils/ob_config_processor.cpp
+++ b/src/obproxy/obutils/ob_config_processor.cpp
@@ -60,7 +60,7 @@ namespace obutils
 
 //the table name need to be lower case, or func'handle_dml_stmt' will get error
 #define MAX_INIT_SQL_LEN 1024
-static const char* sqlite3_db_name = "etc/proxyconfig.db";
+static const char* sqlite3_db_name = "proxyconfig.db";
 static const char* all_table_version_table_name = "all_table_version";
 static const char* white_list_table_name = "white_list";
 static const char* resource_unit_table_name = "resource_unit";
@@ -124,12 +124,28 @@ ObConfigProcessor::~ObConfigProcessor()
 int ObConfigProcessor::init()
 {
   int ret = OB_SUCCESS;
+  const char *dir = NULL;
   if (OB_FAIL(table_handler_map_.create(32, ObModIds::OB_HASH_BUCKET))) {
     LOG_WARN("create hash map failed", K(ret));
-  } else if (SQLITE_OK != sqlite3_open_v2(
-    sqlite3_db_name, &proxy_config_db_, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL)) {
+  } else if (OB_ISNULL(dir = get_global_layout().get_etc_dir())) {
     ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("sqlite3 open failed", K(ret), "err_msg", sqlite3_errmsg(proxy_config_db_));
+    LOG_WARN("get etc dir failed", K(ret));
+  } else {
+    char *path = NULL;
+    ObFixedArenaAllocator<ObLayout::MAX_PATH_LENGTH> allocator;
+    if (OB_FAIL(ObLayout::merge_file_path(dir, sqlite3_db_name, allocator, path))) {
+      LOG_WARN("fail to merge file path", K(sqlite3_db_name), K(ret));
+    } else if (OB_ISNULL(path)) {
+      ret = OB_ERR_UNEXPECTED;
+    } else if (SQLITE_OK != sqlite3_open_v2(
+        path, &proxy_config_db_, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL)) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("sqlite3 open failed", K(ret), "path", path, "err_msg", sqlite3_errmsg(proxy_config_db_));
+    }
+  }
+
+  if (OB_FAIL(ret)) {
+    // do nothing
   } else if (OB_FAIL(check_and_create_table())) {
     LOG_WARN("check create table failed", K(ret));
   } else {
@@ -175,14 +191,20 @@ int ObConfigProcessor::init_callback(void *data, int argc, char **argv, char **c
       if (NULL == argv[i]) {
         continue;
       } else {
-        SqlField sql_field;
-        sql_field.column_name_.set_string(column_name[i], static_cast<int32_t>(strlen(column_name[i])));
-        sql_field.value_type_ = TOKEN_STR_VAL;
-        sql_field.column_value_.set_value(static_cast<int32_t>(strlen(argv[i])), argv[i]);
-        if (OB_FAIL(field_result.fields_.push_back(sql_field))) {
-          LOG_WARN("push back failed", K(ret));
+        SqlField *sql_field = NULL;
+        if (OB_FAIL(SqlField::alloc_sql_field(sql_field))) {
+          LOG_WARN("fail to alloc sql field", K(ret));
         } else {
-          field_result.field_num_++;
+          sql_field->column_name_.set_value(static_cast<int32_t>(strlen(column_name[i])), column_name[i]);
+          sql_field->value_type_ = TOKEN_STR_VAL;
+          sql_field->column_value_.set_value(static_cast<int32_t>(strlen(argv[i])), argv[i]);
+          if (OB_FAIL(field_result.fields_.push_back(sql_field))) {
+            sql_field->reset();
+            sql_field = NULL;
+            LOG_WARN("push back failed", K(ret));
+          } else {
+            field_result.field_num_++;
+          }
         }
       }
     }
@@ -192,11 +214,11 @@ int ObConfigProcessor::init_callback(void *data, int argc, char **argv, char **c
       const char* cluster_name_str = "cluster_name";
       const char* tenant_name_str = "tenant_name";
       for (int64_t i = 0; i < field_result.field_num_; i++) {
-        SqlField &field = field_result.fields_.at(i);
-        if (field.column_name_.string_ == cluster_name_str) {
-          params.cluster_name_ = field.column_value_.config_string_;
-        } else if (field.column_name_.string_ == tenant_name_str) {
-          params.tenant_name_ = field.column_value_.config_string_;
+        SqlField* field = field_result.fields_.at(i);
+        if (field->column_name_.config_string_ == cluster_name_str) {
+          params.cluster_name_ = field->column_value_.config_string_;
+        } else if (field->column_name_.config_string_ == tenant_name_str) {
+          params.tenant_name_ = field->column_value_.config_string_;
         }
       }
 
@@ -370,11 +392,11 @@ int ObConfigProcessor::handle_dml_stmt(ObString &sql, ParseResult& parse_result,
       const char* cluster_name_str = "cluster_name";
       const char* tenant_name_str = "tenant_name";
       for (int64_t i = 0; i < params.fields_->field_num_; i++) {
-        SqlField &field = params.fields_->fields_.at(i);
-        if (field.column_name_.string_ == cluster_name_str) {
-          params.cluster_name_ = field.column_value_.config_string_;
-        } else if (field.column_name_.string_ == tenant_name_str) {
-          params.tenant_name_ = field.column_value_.config_string_;
+        SqlField* field = params.fields_->fields_.at(i);
+        if (field->column_name_.config_string_ == cluster_name_str) {
+          params.cluster_name_ = field->column_value_.config_string_;
+        } else if (field->column_name_.config_string_ == tenant_name_str) {
+          params.tenant_name_ = field->column_value_.config_string_;
         }
       }
       //table name is UPPER CASE in stmt, need convert to lower case as origin
@@ -404,12 +426,31 @@ int ObConfigProcessor::handle_dml_stmt(ObString &sql, ParseResult& parse_result,
       } else {
         memcpy(sql_buf, sql.ptr(), sql.length());
         sql_buf[sql.length()] = '\0';
-        if (SQLITE_OK != sqlite3_exec(proxy_config_db_, sql_buf, NULL, 0, &err_msg)) {
+        if (SQLITE_OK != sqlite3_exec(proxy_config_db_, "begin;", NULL, 0, &err_msg)) {
+          ret = OB_ERR_UNEXPECTED;
+          LOG_WARN("sqlite3 exec failed", K(sql), "err_msg", err_msg);
+          sqlite3_free(err_msg);
+        }
+
+        if (OB_SUCC(ret) && SQLITE_OK != sqlite3_exec(proxy_config_db_, sql_buf, NULL, 0, &err_msg)) {
           ret = OB_ERR_UNEXPECTED;
           LOG_WARN("sqlite3 exec failed", K(sql), "err_msg", err_msg);
           sqlite3_free(err_msg);
         }
         ob_free(sql_buf);
+
+        if (OB_SUCC(ret) && NULL != handler.before_commit_func_) {
+          if (OB_FAIL(handler.before_commit_func_(proxy_config_db_))) {
+            LOG_WARN("before commit func failed", K_(params.table_name), K(ret));
+          }
+        }
+
+        const char *end_sql = OB_SUCCESS == ret ? "commit;" : "rollback;";
+        if (SQLITE_OK != sqlite3_exec(proxy_config_db_, end_sql, NULL, 0, &err_msg)) {
+          ret = OB_ERR_UNEXPECTED;
+          LOG_WARN("sqlite3 exec failed", K(sql), "err_msg", err_msg);
+          sqlite3_free(err_msg);
+        }
       }
       tmp_ret = ret;
     }
@@ -523,6 +564,18 @@ bool ObConfigProcessor::is_table_in_service(const ObString &table_name)
   return is_in_service;
 }
 
+int ObConfigProcessor::execute(const char* sql, int (*callback)(void*, int, char**, char**), void* handler)
+{
+  int ret = OB_SUCCESS;
+  char *err_msg = NULL;
+  if (SQLITE_OK != sqlite3_exec(proxy_config_db_, sql, callback, handler, &err_msg)) {
+    ret = OB_ERR_UNEXPECTED;
+    WARN_ICMD("exec sql failed", K(ret), "err_msg", err_msg);
+    sqlite3_free(err_msg);
+  }
+  return ret;
+}
+
 int ObConfigProcessor::store_global_ssl_config(const ObString &name, const ObString &value)
 {
   int ret = OB_SUCCESS;
@@ -559,27 +612,42 @@ int ObConfigProcessor::store_global_ssl_config(const ObString &name, const ObStr
   return ret;
 }
 
-int ObConfigProcessor::store_global_proxy_config(const ObString &name, const ObString &value)
+int ObConfigProcessor::store_proxy_config_with_level(int64_t vid, const ObString &vip, int64_t vport,
+                                                     const ObString &tenant_name, const ObString &cluster_name,
+                                                     const ObString &name, const ObString& value, const ObString &level)
 {
   int ret = OB_SUCCESS;
-  if (OB_UNLIKELY(name.empty())) {
+  if (OB_UNLIKELY(name.empty() || level.empty())) {
     ret = OB_INVALID_ARGUMENT;
-    LOG_WARN("invalid argument", K(name), K(value));
+    LOG_WARN("invalid argument", K(name), K(level));
   } else {
-    const char *sql = "replace into proxy_config(name, value, config_level) values('%.*s', '%.*s', 'LEVEL_GLOBAL')";
-    int64_t buf_len = name.length() + value.length() + strlen(sql);
+    const char *sql =
+      "replace into proxy_config(vid, vip, vport, cluster_name, tenant_name, name, value, config_level) "
+      "values(%ld, '%.*s', %ld, '%.*s', '%.*s', '%.*s', '%.*s', '%.*s')";
+    char vid_buf[64];
+    char vport_buf[64];
+    int32_t vid_len = snprintf(vid_buf, sizeof(vid_buf), "%ld", vid);
+    int32_t vport_len = snprintf(vport_buf, sizeof(vport_buf), "%ld", vport);
+    int64_t buf_len = vid_len + vport_len + vip.length() + tenant_name.length() + cluster_name.length() + name.length() + value.length() + level.length() + strlen(sql);
     char *sql_buf = (char*)ob_malloc(buf_len + 1, ObModIds::OB_PROXY_CONFIG_TABLE);
     if (OB_ISNULL(sql_buf)) {
       ret = OB_ALLOCATE_MEMORY_FAILED;
       LOG_WARN("allocate memory failed", K(ret), K(buf_len));
     } else {
       ObString sql_string;
-      int64_t len = 0;
+      int32_t len = 0;
       get_global_proxy_config_table_processor().set_need_sync_to_file(false);
-      len = static_cast<int64_t>(snprintf(sql_buf, buf_len, sql,
+      len = static_cast<int32_t>(snprintf(sql_buf, buf_len, sql,
+                                 vid,
+                                 vip.length(), vip.ptr(),
+                                 vport,
+                                 cluster_name.length(), cluster_name.ptr(),
+                                 tenant_name.length(), tenant_name.ptr(),
                                  name.length(), name.ptr(),
-                                 value.length(), value.ptr()));
-      sql_string.assign_ptr(sql_buf, static_cast<int32_t>(len));
+                                 value.length(), value.ptr(),
+                                 level.length(), level.ptr()));
+      sql_string.assign_ptr(sql_buf, len);
+      LOG_DEBUG("execute sql", K(sql_string));
       if (OB_UNLIKELY(len <= 0)) {
         ret = OB_ERR_UNEXPECTED;
         LOG_WARN("fail to fill sql", K(len), K(ret));
@@ -597,6 +665,15 @@ int ObConfigProcessor::store_global_proxy_config(const ObString &name, const ObS
   return ret;
 }
 
+int ObConfigProcessor::store_global_proxy_config(const ObString &name, const ObString &value)
+{
+  int ret = OB_SUCCESS;
+  if (OB_FAIL(store_proxy_config_with_level(-1, "", 0, "", "", name, value, "LEVEL_GLOBAL"))) {
+    LOG_WARN("store_proxy_config_with_level failed", K(ret));
+  }
+  return ret;
+}
+
 int ObConfigProcessor::get_proxy_config_with_level(const ObVipAddr &addr, const common::ObString &cluster_name,
                        const common::ObString &tenant_name, const common::ObString& name,
                        common::ObConfigItem &ret_item, const ObString level, bool &found)
@@ -612,7 +689,7 @@ int ObConfigProcessor::get_proxy_config_with_level(const ObVipAddr &addr, const
     }
   } else if (0 != strcasecmp(proxy_item.config_level_.ptr(), level.ptr())) {
     ret = OB_SUCCESS;
-    LOG_DEBUG("vip config level not match", K(proxy_item));
+    LOG_TRACE("vip config level not match", K(proxy_item), K(level));
   } else {
     found = true;
     ret_item = proxy_item.config_item_;
@@ -675,6 +752,22 @@ int ObConfigProcessor::get_proxy_config_bool_item(const ObVipAddr &addr, const O
   return ret;
 }
 
+int ObConfigProcessor::get_proxy_config_int_item(const ObVipAddr &addr, const ObString &cluster_name,
+                                                  const ObString &tenant_name, const ObString& name,
+                                                  ObConfigIntItem &ret_item)
+{
+  int ret = OB_SUCCESS;
+  ObConfigItem item;
+  if (OB_FAIL(get_proxy_config(addr, cluster_name, tenant_name, name, item))) {
+    LOG_WARN("get proxy config failed", K(addr), K(cluster_name), K(tenant_name), K(name), K(ret));
+  } else {
+    ret_item.set(item.str());
+    LOG_DEBUG("get int item succ", K(ret_item));
+  }
+
+  return ret;
+}
+
 } // end of obutils
 } // end of obproxy
 } // end of oceanbase
diff --git a/src/obproxy/obutils/ob_config_processor.h b/src/obproxy/obutils/ob_config_processor.h
index ef0224e9..156789a8 100644
--- a/src/obproxy/obutils/ob_config_processor.h
+++ b/src/obproxy/obutils/ob_config_processor.h
@@ -54,11 +54,14 @@ struct ObVipAddr;
 
 typedef int (*config_processor_execute) (void *);
 typedef int (*config_processor_commit) (void*, bool is_success);
+typedef int (*config_processor_before_commit) (void *);
 
 struct ObConfigHandler
 {
+  ObConfigHandler() : execute_func_(NULL), commit_func_(NULL), before_commit_func_(NULL) {}
   config_processor_execute execute_func_;
   config_processor_commit commit_func_;
+  config_processor_before_commit before_commit_func_;
 };
 
 typedef common::hash::ObHashMap<common::ObFixedLengthString<common::OB_MAX_TABLE_NAME_LENGTH>, ObConfigHandler> ConfigHandlerHashMap;
@@ -98,6 +101,11 @@ class ObConfigProcessor
   bool is_table_in_service(const common::ObString &table_name);
   int store_global_ssl_config(const common::ObString& name, const common::ObString &value);
   int store_global_proxy_config(const common::ObString &name, const common::ObString &value);
+  int store_vip_tenant_cluster_config(int64_t vid, const ObString &vip, int64_t vport,
+      const ObString &name, const ObString &value);
+  int store_proxy_config_with_level(int64_t vid, const ObString &vip, int64_t vport,
+      const ObString &cluster_name, const ObString &tenant_name,
+      const ObString &name, const ObString &value, const ObString &level);
 
   int get_proxy_config(const ObVipAddr &addr, const common::ObString &cluster_name,
                        const common::ObString &tenant_name, const common::ObString& name,
@@ -105,15 +113,19 @@ class ObConfigProcessor
   int get_proxy_config_bool_item(const ObVipAddr &addr, const common::ObString &cluster_name,
                                  const common::ObString &tenant_name, const common::ObString& name,
                                  common::ObConfigBoolItem &ret_item);
+  int get_proxy_config_int_item(const ObVipAddr &addr, const common::ObString &cluster_name,
+                                 const common::ObString &tenant_name, const common::ObString& name,
+                                 common::ObConfigIntItem &ret_item);
+  int get_proxy_config_with_level(const ObVipAddr &addr, const common::ObString &cluster_name,
+                                  const common::ObString &tenant_name, const common::ObString& name,
+                                  common::ObConfigItem &ret_item, const ObString level, bool &found);
+  int execute(const char* sql, int (*callback)(void*, int, char**, char**), void* handler);
 
 private:
   int init_config_from_disk();
   int check_and_create_table();
   int handle_dml_stmt(common::ObString &sql, ParseResult& parse_result, ObArenaAllocator&allocator);
   int handle_select_stmt(common::ObString &sql, obproxy::ObConfigV2Handler *v2_handler);
-  int get_proxy_config_with_level(const ObVipAddr &addr, const common::ObString &cluster_name,
-                       const common::ObString &tenant_name, const common::ObString& name,
-                       common::ObConfigItem &ret_item, const ObString level, bool &found);
 
   static int init_callback(void *data, int argc, char **argv, char **column_name);
   static int sqlite3_callback(void *data, int argc, char **argv, char **column_name);
diff --git a/src/obproxy/obutils/ob_congestion_entry.cpp b/src/obproxy/obutils/ob_congestion_entry.cpp
index 54859add..ec3cbf7b 100644
--- a/src/obproxy/obutils/ob_congestion_entry.cpp
+++ b/src/obproxy/obutils/ob_congestion_entry.cpp
@@ -91,6 +91,7 @@ ObCongestionEntry::ObCongestionEntry(const ObIpEndpoint &ip)
       last_dead_congested_(0), dead_congested_(0),
       last_alive_congested_(0),alive_congested_(0),
       last_detect_congested_(0), detect_congested_(0),
+      last_client_feedback_congested_(0), stat_client_feedback_failures_(0), client_feedback_congested_(0),
       stat_conn_failures_(0), stat_alive_failures_(0),
       last_revalidate_time_us_(0), cr_version_(-1)
 {
@@ -380,7 +381,7 @@ void ObCongestionEntry::set_alive_failed_at(const ObHRTime t)
   (void)ATOMIC_FAA(&stat_alive_failures_, 1);
   if (control_config_->alive_failure_threshold_ >= 0) {
     int64_t time = hrtime_to_sec(t);
-    LOG_INFO("alive failed at", K(t));
+    LOG_INFO("alive failed at", K(t), KPC(this));
     MUTEX_TRY_LOCK(lock, fail_hist_lock_, this_ethread());
     if (lock.is_locked()) {
       alive_fail_history_.regist_event(time);
@@ -390,7 +391,32 @@ void ObCongestionEntry::set_alive_failed_at(const ObHRTime t)
         if (new_congested && !ATOMIC_TAS(&alive_congested_, 1)) {
           last_alive_congested_ = alive_fail_history_.last_event_;
           // action congested ?
-          LOG_INFO("set_alive_congested", KPC(this));
+          LOG_INFO("set alive congested", KPC(this));
+        }
+      }
+    } else {
+      LOG_DEBUG("failure info lost due to lock contention",
+                KPC(this), K(time));
+    }
+  }
+}
+
+void ObCongestionEntry::set_client_feedback_failed_at(const ObHRTime t)
+{
+  (void)ATOMIC_FAA(&stat_client_feedback_failures_, 1);
+  if (control_config_->alive_failure_threshold_ >= 0) {
+    int64_t time = hrtime_to_sec(t);
+    LOG_INFO("client feedback failed at", K(t));
+    MUTEX_TRY_LOCK(lock, fail_hist_lock_, this_ethread());
+    if (lock.is_locked()) {
+      client_feedback_fail_history_.regist_event(time);
+      if (!client_feedback_congested_) {
+        bool new_congested = check_client_feedback_congested();
+        // TODO: This used to signal via SNMP
+        if (new_congested && !ATOMIC_TAS(&client_feedback_congested_, 1)) {
+          last_client_feedback_congested_ = client_feedback_fail_history_.last_event_;
+          // action congested ?
+          LOG_INFO("set_client_feedback_congested", KPC(this));
         }
       }
     } else {
@@ -435,7 +461,7 @@ void ObCongestionEntry::set_alive_congested()
     // action congested ?
   } else {
     last_alive_congested_ = ObTimeUtility::extract_second(ObTimeUtility::current_time());
-    LOG_INFO("set_alive_congested", KPC(this));
+    LOG_INFO("set alive congested", KPC(this));
   }
 }
 
@@ -473,7 +499,6 @@ void ObCongestionEntry::set_detect_congested()
   } else {
     last_detect_congested_ = ObTimeUtility::extract_second(ObTimeUtility::current_time());
     LOG_INFO("set detect congested", KPC(this));
-    get_global_resource_pool_processor().ip_set_.set_refactored(server_ip_);
   }
 }
 
@@ -483,7 +508,6 @@ void ObCongestionEntry::set_detect_congested_free()
     // action not congested ?
     LOG_INFO("set detect congested free", KPC(this));
   }
-  get_global_resource_pool_processor().ip_set_.erase_refactored(server_ip_);
 }
 
 
diff --git a/src/obproxy/obutils/ob_congestion_entry.h b/src/obproxy/obutils/ob_congestion_entry.h
index d0c4c82e..0c9f04f1 100644
--- a/src/obproxy/obutils/ob_congestion_entry.h
+++ b/src/obproxy/obutils/ob_congestion_entry.h
@@ -290,6 +290,7 @@ struct ObCongestionEntry : public ObCongestionRefCnt
   void set_detect_congested_free();
   void set_dead_failed_at(const ObHRTime t);
   void set_alive_failed_at(const ObHRTime t);
+  void set_client_feedback_failed_at(const ObHRTime t);
 
   // Connection controls
   bool alive_need_retry(const ObHRTime t);
@@ -300,6 +301,7 @@ struct ObCongestionEntry : public ObCongestionRefCnt
   void reset_fail_history();
   bool check_dead_congested();
   bool check_alive_congested();
+  bool check_client_feedback_congested();
 
   // ObCongestionEntry and ObCongestionControl config interaction helper functions
   int validate_config(ObCongestionControlConfig *config);
@@ -338,6 +340,11 @@ struct ObCongestionEntry : public ObCongestionRefCnt
   ObHRTime last_detect_congested_;
   volatile int64_t detect_congested_;
 
+  ObFailHistory client_feedback_fail_history_;
+  ObHRTime last_client_feedback_congested_;
+  volatile int64_t stat_client_feedback_failures_;
+  int64_t client_feedback_congested_;
+
   volatile int64_t stat_conn_failures_;
   volatile int64_t stat_alive_failures_;
   int64_t last_revalidate_time_us_; // unit us
@@ -437,12 +444,27 @@ inline bool ObCongestionEntry::check_alive_congested()
   return bret;
 }
 
+inline bool ObCongestionEntry::check_client_feedback_congested()
+{
+  bool bret = false;
+  if (1 == client_feedback_congested_) {
+    bret = true;
+  } else if (control_config_->alive_failure_threshold_ < 0) {
+    bret = false;
+  } else {
+    bret = control_config_->alive_failure_threshold_ <= client_feedback_fail_history_.events_;
+  }
+
+  return bret;
+}
+
 inline void ObCongestionEntry::reset_fail_history()
 {
   conn_fail_history_.init(control_config_->fail_window_sec_);
   dead_congested_ = 0;
   alive_fail_history_.init(control_config_->fail_window_sec_);
   alive_congested_ = 0;
+  client_feedback_fail_history_.init(control_config_->fail_window_sec_);
 }
 
 void ObCongestionEntry::free()
diff --git a/src/obproxy/obutils/ob_congestion_manager.cpp b/src/obproxy/obutils/ob_congestion_manager.cpp
index 3d18b4c2..1be3253b 100644
--- a/src/obproxy/obutils/ob_congestion_manager.cpp
+++ b/src/obproxy/obutils/ob_congestion_manager.cpp
@@ -382,6 +382,7 @@ int ObCongestionManager::add_new_server(const net::ObIpEndpoint &ip,
             break;
           case ObCongestionEntry::DETECT_ALIVE:
             entry->set_detect_congested_free();
+            entry->set_alive_congested_free();
             break;
           case ObCongestionEntry::DETECT_DEAD:
             entry->set_detect_congested();
@@ -607,6 +608,7 @@ int ObCongestionManager::process(const int64_t buck_id, ObCongestRequestParam *p
               break;
             case ObCongestionEntry::DETECT_ALIVE:
               entry->set_detect_congested_free();
+              entry->set_alive_congested_free();
               break;
             case ObCongestionEntry::DETECT_DEAD:
               entry->set_detect_congested();
@@ -985,6 +987,7 @@ int ObCongestionManager::revalidate_server(const ObIpEndpoint &ip,
             break;
           case ObCongestionEntry::DETECT_ALIVE:
             entry->set_detect_congested_free();
+            entry->set_alive_congested_free();
             break;
           case ObCongestionEntry::DETECT_DEAD:
             entry->set_detect_congested();
@@ -1014,7 +1017,7 @@ int ObCongestionManager::revalidate_server(const ObIpEndpoint &ip,
     }
   } else {
     LOG_DEBUG("failed to lock_bucket, add to todo_list", "server_state",
-              ObCongestionEntry::get_server_state_name(server_state), K(*entry));
+              ObCongestionEntry::get_server_state_name(server_state));
     ObCongestRequestParam *param = op_alloc(ObCongestRequestParam);
     if (OB_ISNULL(param)) {
       ret = OB_ALLOCATE_MEMORY_FAILED;
diff --git a/src/obproxy/obutils/ob_hot_upgrade_processor.cpp b/src/obproxy/obutils/ob_hot_upgrade_processor.cpp
index 5ddfbc27..bedfce3e 100644
--- a/src/obproxy/obutils/ob_hot_upgrade_processor.cpp
+++ b/src/obproxy/obutils/ob_hot_upgrade_processor.cpp
@@ -110,7 +110,7 @@ int ObProxyHotUpgrader::get_envp(char **&envp)
 {
   static const int64_t OBPROXY_ENVP_MAX_SIZE = 128;
   int ret = OB_SUCCESS;
-  int64_t count = 1;  // envp's valid items count
+  int64_t count = 2;  // envp's valid items count
   bool is_obproxy_root_set = false;
   char *obproxy_root = NULL;
   if (NULL != (obproxy_root = getenv("OBPROXY_ROOT"))) {
@@ -128,7 +128,8 @@ int ObProxyHotUpgrader::get_envp(char **&envp)
     memset(var, 0, size);
     envp = reinterpret_cast<char **>(var);
     envp[0] = reinterpret_cast<char *>(malloc(OBPROXY_ENVP_MAX_SIZE));
-    if (OB_ISNULL(envp[0])) {
+    envp[1] = reinterpret_cast<char *>(malloc(OBPROXY_ENVP_MAX_SIZE));
+    if (OB_ISNULL(envp[0]) || OB_ISNULL(envp[1])) {
       ret = OB_ALLOCATE_MEMORY_FAILED;
       free(var);
       var = NULL;
@@ -137,16 +138,23 @@ int ObProxyHotUpgrader::get_envp(char **&envp)
     } else {
       const ObHotUpgraderInfo &info = get_global_hot_upgrade_info();
       int64_t length = snprintf(envp[0], static_cast<size_t>(OBPROXY_ENVP_MAX_SIZE),
-                                OBPROXY_INHERITED_FD"=%d", info.fd_);
+                                OBPROXY_INHERITED_IPV4_FD"=%d", info.ipv4_fd_);
       if (OB_UNLIKELY(length <= 0) || OB_UNLIKELY(length >= OBPROXY_ENVP_MAX_SIZE)) {
         ret = OB_BUF_NOT_ENOUGH;
         LOG_WARN("buf not enought", K(length), "envp[0]_length", OBPROXY_ENVP_MAX_SIZE, K(envp[0]), K(ret));
+      } else {
+        int64_t length = snprintf(envp[1], static_cast<size_t>(OBPROXY_ENVP_MAX_SIZE),
+                                  OBPROXY_INHERITED_IPV6_FD"=%d", info.ipv6_fd_);
+        if (OB_UNLIKELY(length <= 0) || OB_UNLIKELY(length >= OBPROXY_ENVP_MAX_SIZE)) {
+          ret = OB_BUF_NOT_ENOUGH;
+          LOG_WARN("buf not enought", K(length), "envp[0]_length", OBPROXY_ENVP_MAX_SIZE, K(envp[1]), K(ret));
+        }
       }
     }
     //set OBPROXY_ROOT
     if (OB_SUCC(ret) && is_obproxy_root_set) {
-      envp[1] = reinterpret_cast<char *>(malloc(OBPROXY_ENVP_MAX_SIZE));
-      if (OB_ISNULL(envp[1])) {
+      envp[2] = reinterpret_cast<char *>(malloc(OBPROXY_ENVP_MAX_SIZE));
+      if (OB_ISNULL(envp[2])) {
         ret = OB_ALLOCATE_MEMORY_FAILED;
         free(envp[0]);
         free(var);
@@ -154,11 +162,11 @@ int ObProxyHotUpgrader::get_envp(char **&envp)
         envp = NULL;
         LOG_ERROR("fail to malloc", K(ret));
       } else {
-        int64_t length = snprintf(envp[1], static_cast<size_t>(OBPROXY_ENVP_MAX_SIZE),
+        int64_t length = snprintf(envp[2], static_cast<size_t>(OBPROXY_ENVP_MAX_SIZE),
                                   "OBPROXY_ROOT=%s", obproxy_root);
         if (OB_UNLIKELY(length <= 0) || OB_UNLIKELY(length >= OBPROXY_ENVP_MAX_SIZE)) {
           ret = OB_BUF_NOT_ENOUGH;
-          LOG_WARN("buf not enought", K(length), "envp[1]_length", OBPROXY_ENVP_MAX_SIZE, K(envp[1]), K(ret));
+          LOG_WARN("buf not enought", K(length), "envp[2]_length", OBPROXY_ENVP_MAX_SIZE, K(envp[2]), K(ret));
         }
       }
     }
@@ -1289,6 +1297,8 @@ int ObHotUpgradeProcessor::init_raw_client(ObRawMysqlClient &raw_client, const O
   char passwd_staged1_buf[ENC_STRING_BUF_LEN] = {0}; // 1B '*' + 40B octal num
   ObProxyLoginInfo login_info;
   int64_t pos = 0;
+  char cluster_name_buf[OB_PROXY_FULL_USER_NAME_MAX_LEN + 1];
+  ObString cluster_name;
 
   switch (type) {
     case USER_TYPE_METADB: {
@@ -1311,14 +1321,13 @@ int ObHotUpgradeProcessor::init_raw_client(ObRawMysqlClient &raw_client, const O
       break;
     }
     case USER_TYPE_PROXYRO: {
-      char cluster_name[OB_PROXY_FULL_USER_NAME_MAX_LEN + 1];
-      cluster_name[0] = '\0';
-      if (OB_FAIL(get_global_config_server_processor().get_default_cluster_name(cluster_name, OB_PROXY_FULL_USER_NAME_MAX_LEN + 1))) {
+      cluster_name_buf[0] = '\0';
+      if (OB_FAIL(get_global_config_server_processor().get_default_cluster_name(cluster_name_buf, OB_PROXY_FULL_USER_NAME_MAX_LEN + 1))) {
         LOG_WARN("fail to get default cluster name", K(ret));
       } else {
-        ObString default_cname = '\0' == cluster_name[0]
+        ObString default_cname = '\0' == cluster_name_buf[0]
                                  ? ObString::make_string(OB_PROXY_DEFAULT_CLUSTER_NAME)
-                                 : ObString::make_string(cluster_name);
+                                 : ObString::make_string(cluster_name_buf);
         if (OB_FAIL(databuff_printf(full_user_name, OB_PROXY_FULL_USER_NAME_MAX_LEN + 1, pos, "%s#%.*s",
             ObProxyTableInfo::READ_ONLY_USERNAME, default_cname.length(), default_cname.ptr()))) {
           LOG_WARN("fail to databuff_printf", "username", ObProxyTableInfo::READ_ONLY_USERNAME, K(default_cname), K(ret));
@@ -1330,6 +1339,7 @@ int ObHotUpgradeProcessor::init_raw_client(ObRawMysqlClient &raw_client, const O
                                    static_cast<ObString::obstr_size_t>(strlen(get_global_proxy_config().observer_sys_password1.str())));
           string_db.assign_ptr(ObProxyTableInfo::READ_ONLY_DATABASE,
                                static_cast<ObString::obstr_size_t>(STRLEN(ObProxyTableInfo::READ_ONLY_DATABASE)));
+          cluster_name.assign_ptr(cluster_name_buf, static_cast<ObString::obstr_size_t>(strlen(cluster_name_buf)));
         }
       }
       break;
@@ -1357,12 +1367,12 @@ int ObHotUpgradeProcessor::init_raw_client(ObRawMysqlClient &raw_client, const O
   if (OB_SUCC(ret)) {
     ObSEArray<ObAddr, 1> local_addrs;
     ObAddr addr;
-    if (OB_UNLIKELY(!addr.set_ipv4_addr(proxy_ip_, proxy_port_))) {
+    if (OB_UNLIKELY(!addr.set_ip_addr(proxy_ip_, proxy_port_))) {
       ret = OB_ERR_UNEXPECTED;
       LOG_WARN("fail to set addr", K(proxy_ip_), K(proxy_port_), K(ret));
     } else if (OB_FAIL(local_addrs.push_back(addr))) {
       LOG_WARN("fail to push addr to local_addrs", K(addr), K(ret));
-    } else if (OB_FAIL(raw_client.init(string_username, string_passwd, string_db, string_passwd1))) {
+    } else if (OB_FAIL(raw_client.init(string_username, string_passwd, string_db, cluster_name, string_passwd1))) {
       LOG_WARN("fail to init raw mysql client", K(string_username), K(string_db), K(ret));
     } else if (OB_FAIL(raw_client.set_server_addr(local_addrs))) {
       LOG_WARN("fail to set server addr", K(ret));
diff --git a/src/obproxy/obutils/ob_hot_upgrade_processor.h b/src/obproxy/obutils/ob_hot_upgrade_processor.h
index 86798808..51824001 100644
--- a/src/obproxy/obutils/ob_hot_upgrade_processor.h
+++ b/src/obproxy/obutils/ob_hot_upgrade_processor.h
@@ -133,7 +133,7 @@ class ObHotUpgradeProcessor
   ObAsyncCommonTask *hu_cont_;
   ObAsyncCommonTask *hot_upgrade_cont_;
   ObHotUpgraderInfo &info_;
-  char proxy_ip_[common::OB_IP_STR_BUFF]; // ip primary key
+  char proxy_ip_[common::MAX_IP_ADDR_LENGTH]; // ip primary key
   char proxy_self_md5_[OB_DEFAULT_PROXY_MD5_LEN + 1];
   int32_t proxy_port_;                    // port primary key
   int64_t upgrade_failures_;              // upgrade failures when handling 'hot_upgrade' cmd
diff --git a/src/obproxy/obutils/ob_proxy_config.h b/src/obproxy/obutils/ob_proxy_config.h
index 92c7465a..906eefdb 100644
--- a/src/obproxy/obutils/ob_proxy_config.h
+++ b/src/obproxy/obutils/ob_proxy_config.h
@@ -148,6 +148,8 @@ class ObProxyConfig : public common::ObCommonConfig
 public:
   // FIXME: DEF_INT can not compare with 0(<, >, >=, <=)
   mutable obsys::CRWLock rwlock_;
+  // xa transaction
+  DEF_BOOL(enable_xa_route, "true", "whether to enable hold XA_START and route to the partition that the next dml will visit",CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   // refresh local config
   DEF_BOOL(refresh_json_config, "false", "force update json info if refresh_json_config is true", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_MEMORY);
   DEF_BOOL(refresh_rslist, "false", "when refresh config server, update all rslist if refresh_rslist is true", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_MEMORY);
@@ -218,7 +220,7 @@ class ObProxyConfig : public common::ObCommonConfig
   DEF_INT(server_tcp_keepcnt, "5", "[0,9]", "tcp keepalive probe count, 0 means use default value by kernel", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_INT(server_tcp_user_timeout, "0", "[0,20]", "tcp user timeout, unit is s,  0 means no user timeout", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
 
-  DEF_INT(client_sock_option_flag_out, "2", "[0,]","client sock param, option flag out, bit 1: NO_DELAY, bit 2: KEEP_ALIVE", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
+  DEF_INT(client_sock_option_flag_out, "3", "[0,]","client sock param, option flag out, bit 1: NO_DELAY, bit 2: KEEP_ALIVE", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_INT(client_tcp_keepidle, "5", "[0,7200]", "client tcp keepalive idle time, unit is second, 0 means use default value by kernel", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_INT(client_tcp_keepintvl, "5", "[0,75]", "client tcp keepalive interval time, unit is second, 0 means use default value by kernel", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_INT(client_tcp_keepcnt, "5", "[0,9]", "client tcp keepalive probe count, 0 means use default value by kernel", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
@@ -233,6 +235,7 @@ class ObProxyConfig : public common::ObCommonConfig
   DEF_INT(block_thread_num, "1", "[1,4]", "proxy block thread num, [1, 4]", CFG_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_INT(grpc_thread_num, "8", "[8,16]", "proxy grpc thread num, [8, 16]", CFG_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_INT(grpc_client_num, "9", "[9,16]", "proxy grpc client num, [9, 16]", CFG_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
+  DEF_INT(shard_scan_thread_num, "0", "[0,128]", "proxy shard scan thread num, if 0, use (real work thread num/2), [0, 128]", CFG_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_BOOL(automatic_match_work_thread, "true", "ignore work_thread_num configuration item, use the count of cpu for current proxy work thread num", CFG_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_BOOL(enable_strict_kernel_release, "true", "If is true, proxy only support 5u/6u/7u redhat. Otherwise no care kernel release, and proxy maybe unstable", CFG_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
   DEF_CAP(max_log_file_size, "256MB", "[1MB,1G]", "max size of log file, [1MB, 1G]", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
@@ -264,6 +267,8 @@ class ObProxyConfig : public common::ObCommonConfig
   DEF_BOOL(ignore_local_config, "true", "ignore all local cached files, start proxy with remote json", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_IP(local_bound_ip, "0.0.0.0", "local bound ip(any)", CFG_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
   DEF_INT(listen_port, "6688", "(1024,65536)", "obproxy listen port", CFG_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
+  DEF_INT(ip_listen_mode, "1", "[1, 3]", "1 means ipv4 listen mode, 2 means ipv6 listen mode, 3 means ipv4 and ipv6 listen mode", CFG_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
+  DEF_IP(local_bound_ipv6_ip, "::", "local bound ipv6 ip(any)", CFG_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
   DEF_STR(obproxy_config_server_url, "", "url of config info(rs list and so on)", CFG_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
   DEF_STR(proxy_service_mode, "client", "proxy deploy and service mode: 1.client(default); 2.server", CFG_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
   DEF_INT(proxy_id, "0", "[0, 255]", "used to identify each obproxy, it can not be zero if proxy_service_mode is server", CFG_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
@@ -284,15 +289,17 @@ class ObProxyConfig : public common::ObCommonConfig
   DEF_TIME(congestion_retry_interval, "20s", "[1s,1h]", "congestion retry interval, [1s, 1h]", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_TIME(min_congested_connect_timeout, "100ms", "[1ms,1h]", "if client connect timeout after the time, proxy set target server alive congested, [1ms, 1h]", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_BOOL(enable_congestion, "true", "enable congestion feature or not", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
-  DEF_INT(server_detect_mode, "0", "[0,1]", "0 means no detect, 1 means target detect", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
+  DEF_INT(server_detect_mode, "1", "[0,2]", "0 means no detect, 1 means target server detect, 2 means all server detect", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_INT(server_detect_fail_threshold, "3", "[1,10000]", "server detect try times", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
-  DEF_TIME(server_detect_refresh_interval, "10s", "[1ms, 1h]", "the interval to refresh server state for getting zone or server newest state, [10ms, 1h]", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
+  DEF_TIME(server_detect_refresh_interval, "1s", "[1ms, 1h]", "the interval to refresh server state for getting zone or server newest state, [10ms, 1h]", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_TIME(detect_server_timeout, "5s", "[1s,1h]", "detect server sql timeout, [1s, 1h]", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
 
   DEF_BOOL(enable_bad_route_reject, "false", "if enabled, bad route request will be rejected, e.g. first statement of transaction opened by BEGIN(or START TRANSACTION) without table name", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_BOOL(enable_partition_table_route, "true", "if enabled, partition table will be accurate routing", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_BOOL(enable_compression_protocol, "true", "if enabled, proxy will use compression protocol with server", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_BOOL(enable_ob_protocol_v2, "true", "if enabled, proxy will use oceanbase protocol 2.0 with server", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
+  DEF_BOOL(enable_ob_protocol_v2_with_client, "true", "if enabled, proxy will use oceanbase protocol 2.0 with client", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
+  DEF_BOOL(enable_transaction_internal_routing, "true", "if enabled, proxy will route the dml statement in a transaction to different servers", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
 
   DEF_BOOL(enable_reroute, "false", "if this and protocol_v2 enabled, proxy will reroute when routing error", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_BOOL(enable_pl_route, "true", "if enabled, pl will be accurate routing", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
@@ -306,6 +313,9 @@ class ObProxyConfig : public common::ObCommonConfig
   DEF_CAP(sqlaudit_mem_limited, "0", "[0,1G]", "sqlaudit memory limited, [0, 1GB]", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_CAP(internal_cmd_mem_limited, "16M", "[0,64MB]", "internal cmd response memory limited, [0, 64MB], 0 means unlimited", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
 
+  // target db servers
+  DEF_STR(target_db_server, "", "proxy will choose to route target db server addr forcibly, format ip0:port0,ip1:port1,ip2:port2;ip3:port3;ip4:port4", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
+
   //debug
   DEF_STR(test_server_addr, "", "proxy will choose this addr(if not empty) as observer addr forcibly, format ip1:sql_port1;ip2:sql_port2", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
   DEF_STR(server_routing_mode, "oceanbase", "server routing mode: 1.oceanbase(default mode); 2.random; 3.mock; 4.mysql", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
@@ -449,14 +459,10 @@ class ObProxyConfig : public common::ObCommonConfig
 
   // beyond trust sdk
   DEF_STR(domain_name, "", "app domain name", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
-  DEF_BOOL(bt_use_antvip, "true", "if enabled, will use ant vip for bt sdk", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_STR(bt_server_addr, "", "beyond trust server address or hostname", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
-  DEF_STR(bt_antvip_server_addr, "", "beyond trust antvip server", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
-  DEF_STR(bt_server_antvip, "", "beyond trust server antvip", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
-  DEF_BOOL(bt_local_work_mode, "false", "true means LOCAL_CERT_MODE and false means CITADEL_CERT_MODE", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
-  DEF_STR(bt_env_mode, "TENANT_MODE", "beyond trust env mode", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
-  DEF_STR(bt_instance_id, "", "beyond trust instance id for INSTANCEID env mode", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
   DEF_INT(bt_retry_times, "3", "[0,100]", "beyond trust sdk retry times", CFG_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
+  DEF_STR(bt_mode, "", "beyond trust mode", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
+  DEF_STR(citadel_agent_ip, "", "bkmi citadel agent ip", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_USER);
 
   // proxyro@sys and root@proxysys passwd
   DEF_STR(inspector_password, "", "password for inspector user", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
@@ -471,6 +477,18 @@ class ObProxyConfig : public common::ObCommonConfig
   DEF_BOOL(enable_stat, "true", "if enabled, will collect stat info", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
 
   DEF_INT(digest_sql_length, "1024", "0 means use default print sql len, otherwise is digest_sql_length", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
+
+  DEF_INT(obproxy_read_only, "1", "[0,1]", "read write type: 0 means ReadOnly, 1 means ReadWrite", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
+  DEF_INT(obproxy_read_consistency, "0", "[0,1]", "request target: 0 means leader; 1 means follower", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
+
+  DEF_BOOL(enable_global_ps_cache, "true", "if enabled, use global ps cache", CFG_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
+
+  DEF_BOOL(enable_read_write_split, "false", "if enabled, use read write split mode", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
+  DEF_BOOL(enable_transaction_split, "false", "if enabled, support transaction split", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
+
+  // binlog service
+  DEF_STR(binlog_service_ip, "", "binlog service ip, format ip1:sql_port1", CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
+  DEF_BOOL(enable_binlog_service, "false", "if enabled, obproxy will send binlog request to OBLogProxy",  CFG_NO_NEED_REBOOT, CFG_SECTION_OBPROXY, CFG_VISIBLE_LEVEL_SYS);
 };
 
 ObProxyConfig &get_global_proxy_config();
diff --git a/src/obproxy/obutils/ob_proxy_config_utils.cpp b/src/obproxy/obutils/ob_proxy_config_utils.cpp
index 892594a0..e97774d3 100644
--- a/src/obproxy/obutils/ob_proxy_config_utils.cpp
+++ b/src/obproxy/obutils/ob_proxy_config_utils.cpp
@@ -18,8 +18,10 @@
 #include "utils/ob_layout.h"
 #include "obutils/ob_proxy_config.h"
 #include "proxy/client/ob_mysql_proxy.h"
+#include "ob_proxy_init.h"
 
 using namespace oceanbase::common;
+using namespace oceanbase::obproxy;
 using namespace oceanbase::obproxy::event;
 using namespace oceanbase::obproxy::proxy;
 
@@ -569,7 +571,9 @@ int ObProxyConfigUtils::load_config_from_file(ObProxyConfig &proxy_config)
   if (OB_ISNULL(buf = static_cast<char *>(ob_malloc(OB_PROXY_CONFIG_BUFFER_SIZE, mem_attr)))) {
     ret = OB_ALLOCATE_MEMORY_FAILED;
     LOG_WARN("ob tc malloc memory for buf fail", K(ret));
-  } else if (OB_FAIL(ObProxyFileUtils::read(CFG_DUMP_NAME, buf, OB_PROXY_CONFIG_BUFFER_SIZE, read_len))) {
+  // If it is a rich client mode, the configuration will not be read from the local file
+  } else if (RUN_MODE_PROXY == g_run_mode
+             && OB_FAIL(ObProxyFileUtils::read(CFG_DUMP_NAME, buf, OB_PROXY_CONFIG_BUFFER_SIZE, read_len))) {
     // no need to print warn log, the caller will do it
   } else {
     obsys::CWLockGuard guard(proxy_config.rwlock_);
diff --git a/src/obproxy/obutils/ob_proxy_json_config_info.cpp b/src/obproxy/obutils/ob_proxy_json_config_info.cpp
index 092d05d6..2aa9b2f6 100644
--- a/src/obproxy/obutils/ob_proxy_json_config_info.cpp
+++ b/src/obproxy/obutils/ob_proxy_json_config_info.cpp
@@ -2103,7 +2103,7 @@ int ObProxyJsonUtils::rslist_to_json(const LocationList &addr_list, const char *
     }
   }
   if (OB_SUCC(ret)) {
-    char ip_buf[OB_IP_STR_BUFF];
+    char ip_buf[MAX_IP_ADDR_LENGTH];
     for (int64_t i = 0; OB_SUCC(ret) && i < addr_list.count(); ++i) {
       ip_buf[0] = '\0';
       if (i > 0) {
diff --git a/src/obproxy/obutils/ob_proxy_sql_parser.cpp b/src/obproxy/obutils/ob_proxy_sql_parser.cpp
index 7a4fc5d0..d8bd2905 100644
--- a/src/obproxy/obutils/ob_proxy_sql_parser.cpp
+++ b/src/obproxy/obutils/ob_proxy_sql_parser.cpp
@@ -28,6 +28,7 @@ namespace obproxy
 {
 namespace obutils
 {
+#define ISSPACE(c) ((c) == ' ' || (c) == '\n' || (c) == '\r' || (c) == '\t' || (c) == '\f' || (c) == '\v')
 
 void ObSqlParseResult::clear_proxy_stmt()
 {
@@ -55,7 +56,7 @@ int ObSqlParseResult::set_real_table_name(const char *table_name, int64_t len)
   return ret;
 }
 
-inline int ObSqlParseResult::set_db_name(const ObProxyParseString &database_name,
+int ObSqlParseResult::set_db_name(const ObProxyParseString &database_name,
                                          const bool use_lower_case_name/*false*/,
                                          const bool drop_origin_db_table_name /*false*/)
 {
@@ -200,24 +201,33 @@ inline int ObSqlParseResult::set_call_prarms(const ObProxyCallParseInfo &call_pa
   } else if (call_parse_info.node_count_ >= 0) {
     call_info_.is_param_valid_ = true;
     call_info_.param_count_ = call_parse_info.node_count_;
-    ObProxyCallParam tmp_param;
+    ObProxyCallParam* tmp_param = NULL;
     ObProxyCallParseNode *tmp_node = call_parse_info.head_;
-    while(tmp_node && OB_SUCC(ret)) {
-      tmp_param.reset();
-      tmp_param.type_ = tmp_node->type_;
-      if (CALL_TOKEN_INT_VAL == tmp_node->type_) {
-        tmp_param.str_value_.set_integer(tmp_node->int_value_);
-      } else if (CALL_TOKEN_PLACE_HOLDER == tmp_node->type_) {
-        // for place holder, store its pos
-        tmp_param.str_value_.set_integer(tmp_node->placeholder_idx_);
+    while(OB_SUCC(ret) && tmp_node) {
+      tmp_param = NULL;
+      if (OB_FAIL(ObProxyCallParam::alloc_call_param(tmp_param))) {
+        LOG_WARN("fail to alloc call param", K(ret));
       } else {
-        const ObString tmp_string(tmp_node->str_value_.str_len_, tmp_node->str_value_.str_);
-        tmp_param.str_value_.set(tmp_string);
-      } // end node_type
-      if (OB_FAIL(call_info_.params_.push_back(tmp_param))) {
-        LOG_WARN("fail to push back call param", K(tmp_param), K(ret));
+        tmp_param->type_ = tmp_node->type_;
+        if (CALL_TOKEN_INT_VAL == tmp_node->type_) {
+          tmp_param->str_value_.set_integer(tmp_node->int_value_);
+        } else if (CALL_TOKEN_PLACE_HOLDER == tmp_node->type_) {
+          // for place holder, store its pos
+          tmp_param->str_value_.set_integer(tmp_node->placeholder_idx_);
+        } else {
+          tmp_param->str_value_.set_value(tmp_node->str_value_.str_len_, tmp_node->str_value_.str_);
+        } // end node_type
+        if (OB_FAIL(call_info_.params_.push_back(tmp_param))) {
+          LOG_WARN("fail to push back call param", K(tmp_param), K(ret));
+        }
+
+        if (OB_FAIL(ret) && NULL != tmp_param) {
+          tmp_param->reset();
+          tmp_param = NULL;
+        }
+
+        tmp_node = tmp_node->next_;
       }
-      tmp_node = tmp_node->next_;
     }
   }
   return ret;
@@ -375,26 +385,35 @@ int ObSqlParseResult::set_dbmesh_route_info(const ObProxyParseResult &parse_resu
     ObShardColumnNode *tmp_node = route_info.head_;
     fileds_result_.field_num_ = 0;
     fileds_result_.fields_.reuse();
-    SqlField field;
+    SqlField* field = NULL;
     while(tmp_node) {
-      field.reset();
+      field = NULL;
       tmp_str.assign_ptr(tmp_node->tb_name_.str_, tmp_node->tb_name_.str_len_);
       const ObString table_name = tmp_str.trim();
       if (is_dual_request_ || table_name.case_compare(table_name_) == 0) {
         tmp_str.assign_ptr(tmp_node->col_name_.str_, tmp_node->col_name_.str_len_);
-        field.column_name_.set(tmp_str);
-        SqlColumnValue column_value;
-        if (DBMESH_TOKEN_STR_VAL == tmp_node->type_) {
-          column_value.value_type_ = TOKEN_STR_VAL;
-          tmp_str.assign_ptr(tmp_node->col_str_value_.str_, tmp_node->col_str_value_.str_len_);
-          column_value.column_value_.set(tmp_str);
-          field.column_values_.push_back(column_value);
+        if (OB_FAIL(SqlField::alloc_sql_field(field))) {
+          LOG_WARN("fail to alloc sql field", K(ret));
         } else {
-          LOG_INFO("unknown column value type", "token type",
-                   get_obproxy_dbmesh_token_type(tmp_node->type_));
-        }
-        if (field.is_valid() && OB_SUCCESS == fileds_result_.fields_.push_back(field)) {
-          ++fileds_result_.field_num_;
+          field->column_name_.set_value(tmp_str);
+          SqlColumnValue column_value;
+          if (DBMESH_TOKEN_STR_VAL == tmp_node->type_) {
+            column_value.value_type_ = TOKEN_STR_VAL;
+            tmp_str.assign_ptr(tmp_node->col_str_value_.str_, tmp_node->col_str_value_.str_len_);
+            column_value.column_value_.set_value(tmp_str);
+            if (OB_FAIL(field->column_values_.push_back(column_value))) {
+              LOG_WARN("field push back column values failed", K(column_value), K(ret));
+            }
+          } else {
+            LOG_INFO("unknown column value type", "token type",
+                     get_obproxy_dbmesh_token_type(tmp_node->type_));
+          }
+          if (OB_SUCC(ret) && field->is_valid() && OB_SUCCESS == fileds_result_.fields_.push_back(field)) {
+            ++fileds_result_.field_num_;
+          } else if (NULL != field) {
+            field->reset();
+            field = NULL;
+          }
         }
       }
       tmp_node = tmp_node->next_;
@@ -431,23 +450,38 @@ int ObSqlParseResult::set_dbmesh_route_info(const ObProxyParseResult &parse_resu
       use_dbp_hint_ = true;
       dbp_route_info_.scan_all_ = dbp_route_info.scan_all_;
     }
+
+    if (OB_SUCC(ret) && dbp_route_info.sticky_session_) {
+      use_dbp_hint_ = true;
+      dbp_route_info_.sticky_session_ = dbp_route_info.sticky_session_;
+    }
+
     if (OB_SUCC(ret) && dbp_route_info.has_shard_key_) {
       use_dbp_hint_ = true;
       fileds_result_.field_num_ = 0;
       fileds_result_.fields_.reuse();
       dbp_route_info_.has_shard_key_ = dbp_route_info.has_shard_key_;
-      SqlField field;
       for (int i = 0; OB_SUCC(ret) && i < dbp_route_info.shard_key_count_;i++) {
+        SqlField* field = NULL;
         SqlColumnValue column_value;
-        field.reset();
-        field.column_name_.set_string(dbp_route_info.shard_key_infos_[i].left_str_.str_,
-            dbp_route_info.shard_key_infos_[i].left_str_.str_len_);
-        column_value.column_value_.set_string(dbp_route_info.shard_key_infos_[i].right_str_.str_,
-            dbp_route_info.shard_key_infos_[i].right_str_.str_len_);
-        column_value.value_type_ = TOKEN_STR_VAL;
-        field.column_values_.push_back(column_value);
-        if (field.is_valid() && OB_SUCC(fileds_result_.fields_.push_back(field))) {
-          ++fileds_result_.field_num_;
+        if (OB_FAIL(SqlField::alloc_sql_field(field))) {
+          LOG_WARN("fail to alloc sql field", K(ret));
+        } else {
+          field->column_name_.set_value(dbp_route_info.shard_key_infos_[i].left_str_.str_len_,
+                  dbp_route_info.shard_key_infos_[i].left_str_.str_);
+          column_value.column_value_.set_value(dbp_route_info.shard_key_infos_[i].right_str_.str_len_,
+                                               dbp_route_info.shard_key_infos_[i].right_str_.str_);
+          column_value.value_type_ = TOKEN_STR_VAL;
+          if (OB_FAIL(field->column_values_.push_back(column_value))) {
+            LOG_WARN("fail to push back to column_values", K(ret));
+          } else if (field->is_valid() && OB_SUCC(fileds_result_.fields_.push_back(field))) {
+            ++fileds_result_.field_num_;
+          }
+
+          if (OB_FAIL(ret) || !field->is_valid()) {
+            field->reset();
+            field = NULL;
+          }
         }
       }
     }
@@ -474,47 +508,52 @@ int ObSqlParseResult::set_var_info(const ObProxyParseResult &parse_result)
 
     ObString tmp_str;
     ObProxySetVarNode *tmp_node = set_parse_info.head_;
-    SetVarNode var_node;
-    while(tmp_node) {
-      var_node.reset();
-
-      var_node.var_type_ = tmp_node->type_;
-
-      tmp_str.assign_ptr(tmp_node->name_.str_, tmp_node->name_.str_len_);
-      var_node.var_name_.set(tmp_str);
-
-      var_node.value_type_ = tmp_node->value_type_;
-      if (SET_VALUE_TYPE_INT == tmp_node->value_type_) {
-        var_node.int_value_ = tmp_node->int_value_;
-        // float will be coverted to double
-      } else if (SET_VALUE_TYPE_NUMBER == tmp_node->value_type_) {
-        tmp_str.assign_ptr(tmp_node->str_value_.str_, tmp_node->str_value_.str_len_);
-        var_node.str_value_.set(tmp_str);
+    SetVarNode* var_node = NULL;
+    while(OB_SUCC(ret) && tmp_node) {
+      var_node = NULL;
+      if (OB_FAIL(SetVarNode::alloc_var_node(var_node))) {
+        LOG_WARN("fail to alloc var node", K(ret));
       } else {
-        // compatible observer:
-        //  for user var: the var will be returned from observer by OK packet:
-        //    1. if varchar is digital, observer return value not with '
-        //    2. if varchar is string, observer return vaue with '
-        //   so, varchar type, do not add ' when format SQL
-        //  for sys var: varchar type will add ' on format SQL
-        if (SET_VAR_USER == tmp_node->type_) {
+        var_node->var_type_ = tmp_node->type_;
+        tmp_str.assign_ptr(tmp_node->name_.str_, tmp_node->name_.str_len_);
+        var_node->var_name_.set_value(tmp_str);
+
+        var_node->value_type_ = tmp_node->value_type_;
+        if (SET_VALUE_TYPE_INT == tmp_node->value_type_) {
+          var_node->int_value_ = tmp_node->int_value_;
+          //Floating point numbers will be converted to double type when saving
+        } else if (SET_VALUE_TYPE_NUMBER == tmp_node->value_type_) {
           tmp_str.assign_ptr(tmp_node->str_value_.str_, tmp_node->str_value_.str_len_);
-          if (OBPROXY_QUOTE_T_SINGLE == tmp_node->str_value_.quote_type_) {
-            var_node.str_value_.set_with_squote(tmp_str);
-          } else if (OBPROXY_QUOTE_T_DOUBLE == tmp_node->str_value_.quote_type_) {
-            var_node.str_value_.set_with_dquote(tmp_str);
+          var_node->str_value_.set_value(tmp_str);
+        } else {
+          // compatible observer:
+          //  for user var: the var will be returned from observer by OK packet:
+          //    1. if varchar is digital, observer return value not with '
+          //    2. if varchar is string, observer return vaue with '
+          //   so, varchar type, do not add ' when format SQL
+          //  for sys var: varchar type will add ' on format SQL
+          if (SET_VAR_USER == tmp_node->type_) {
+            tmp_str.assign_ptr(tmp_node->str_value_.str_, tmp_node->str_value_.str_len_);
+            if (OBPROXY_QUOTE_T_SINGLE == tmp_node->str_value_.quote_type_) {
+              var_node->str_value_.set_value_with_quote(tmp_str, '\'');
+            } else if (OBPROXY_QUOTE_T_DOUBLE == tmp_node->str_value_.quote_type_) {
+              var_node->str_value_.set_value_with_quote(tmp_str, '"');
+            }
+          } else {
+            tmp_str.assign_ptr(tmp_node->str_value_.str_, tmp_node->str_value_.str_len_);
+            var_node->str_value_.set_value(tmp_str);
           }
+        }
+
+        if (OB_SUCCESS == set_info_.var_nodes_.push_back(var_node)) {
+          ++set_info_.node_count_;
         } else {
-          tmp_str.assign_ptr(tmp_node->str_value_.str_, tmp_node->str_value_.str_len_);
-          var_node.str_value_.set(tmp_str);
+          var_node->reset();
+          var_node = NULL;
         }
-      }
 
-      if (OB_SUCCESS == set_info_.var_nodes_.push_back(var_node)) {
-        ++set_info_.node_count_;
+        tmp_node = tmp_node->next_;
       }
-
-      tmp_node = tmp_node->next_;
     }
   }
 
@@ -534,15 +573,20 @@ int ObSqlParseResult::set_text_ps_info(ObProxyTextPsInfo& text_ps_info,
   } else if (parse_info.node_count_ > 0) {
     text_ps_info.is_param_valid_ = true;
     text_ps_info.param_count_ = parse_info.node_count_;
-    ObProxyTextPsParam tmp_param;
+    ObProxyTextPsParam* tmp_param = NULL;
     ObProxyTextPsParseNode *tmp_node = parse_info.head_;
     while (OB_SUCC(ret) && OB_NOT_NULL(tmp_node)) {
-      tmp_param.reset();
-      const ObString tmp_string(tmp_node->str_value_.str_len_, tmp_node->str_value_.str_);
-      tmp_param.str_value_.set(tmp_string);
-
-      if (OB_FAIL(text_ps_info.params_.push_back(tmp_param))) {
-        LOG_WARN("fail to push back text ps execute info", K(tmp_param), K(ret));
+      tmp_param = NULL;
+      if (OB_FAIL(ObProxyTextPsParam::alloc_text_ps_param(tmp_node->str_value_.str_, tmp_node->str_value_.str_len_, tmp_param))) {
+        LOG_WARN("fail to alloc text ps param", K(ret));
+      } else {
+        const ObString tmp_string(tmp_node->str_value_.str_len_, tmp_node->str_value_.str_);
+        tmp_param->str_value_.set_value(tmp_string);
+        if (OB_FAIL(text_ps_info.params_.push_back(tmp_param))) {
+          tmp_param->reset();
+          tmp_param = NULL;
+          LOG_WARN("fail to push back text ps execute info", KPC(tmp_param), K(ret));
+        }
       }
       tmp_node = tmp_node->next_;
     }
@@ -597,6 +641,18 @@ int ObSqlParseResult::load_result(const ObProxyParseResult &parse_result,
     rpc_id_.assign_ptr(rpc_id_buf_, parse_result.rpc_id_.str_len_);
   }
 
+  if (OB_UNLIKELY(NULL != parse_result.target_db_server_.str_
+      && 0 < parse_result.target_db_server_.str_len_)) {
+    if (OB_ISNULL(target_db_server_) && OB_ISNULL(target_db_server_ = op_alloc(ObTargetDbServer))) {
+      ret = OB_ALLOCATE_MEMORY_FAILED;
+      LOG_WARN("fail to alloc memory for target db server", K(ret));
+    } else if (OB_FAIL(target_db_server_->init(parse_result.target_db_server_.str_, parse_result.target_db_server_.str_len_))) {
+      LOG_WARN("fail to init target db server from sql comment", K(ret));
+    } else { 
+      LOG_DEBUG("succ to init target db server from sql comment", K(ret));
+    }
+  } 
+
   // if is dml stmt, then set db/table name
   if (OB_LIKELY(is_dml_stmt() || is_call_stmt() || (is_text_ps_stmt() && is_text_ps_inner_dml_stmt())
       || is_show_stmt() || is_desc_table_stmt())) {
@@ -637,7 +693,7 @@ int ObSqlParseResult::load_result(const ObProxyParseResult &parse_result,
     if (OB_FAIL(set_var_info(parse_result))) {
       LOG_WARN("fail to set var info", K(ret));
     }
-  } else if (is_show_topology_stmt()) {
+  } else if (is_show_elastic_id_stmt()) {
     ObString tmp_string(parse_result.cmd_info_.string_[0].str_len_, parse_result.cmd_info_.string_[0].str_);
     if (!tmp_string.empty()) {
       cmd_info_.string_[0].set(tmp_string);
@@ -750,8 +806,7 @@ int64_t ObProxyCallParam::to_string(char *buf, const int64_t buf_len) const
 {
   int64_t pos = 0;
   J_OBJ_START();
-  J_KV("type", get_obproxy_call_token_type(type_),
-       K_(str_value));
+  J_KV("type", get_obproxy_call_token_type(type_), K_(str_value), K_(is_alloc));
   J_OBJ_END();
   return pos;
 }
@@ -765,11 +820,56 @@ int64_t ObProxyCallInfo::to_string(char *buf, const int64_t buf_len) const
   return pos;
 }
 
+ObProxyCallInfo::ObProxyCallInfo(const ObProxyCallInfo &other)
+{
+  int ret = OB_SUCCESS;
+  is_param_valid_ = other.is_param_valid_;
+  param_count_ = other.param_count_;
+  for (int64_t i = 0; OB_SUCC(ret) && i < param_count_; i++) {
+    ObProxyCallParam *param = other.params_.at(i);
+    ObProxyCallParam *tmp_param = NULL;
+    if (OB_FAIL(ObProxyCallParam::alloc_call_param(tmp_param))) {
+      LOG_WARN("fail to alloc call param", K(ret));
+    } else {
+      *tmp_param = *param; 
+      if (OB_FAIL(params_.push_back(tmp_param))) {
+        tmp_param->reset();
+        tmp_param = NULL;
+        LOG_ERROR("fail to assign param", K(ret));
+      }
+    }
+  }
+}
+
+ObProxyCallInfo& ObProxyCallInfo::operator=(const ObProxyCallInfo &other)
+{
+  int ret = OB_SUCCESS;
+  if (this != &other) {
+    is_param_valid_ = other.is_param_valid_;
+    param_count_ = other.param_count_;
+    for (int64_t i = 0; OB_SUCC(ret) && i < param_count_; i++) {
+      ObProxyCallParam *param = other.params_.at(i);
+      ObProxyCallParam *tmp_param = NULL;
+      if (OB_FAIL(ObProxyCallParam::alloc_call_param(tmp_param))) {
+        LOG_WARN("fail to alloc call param", K(ret));
+      } else {
+        *tmp_param = *param; 
+        if (OB_FAIL(params_.push_back(tmp_param))) {
+          tmp_param->reset();
+          tmp_param = NULL;
+          LOG_ERROR("fail to assign param", K(ret));
+        }
+      }
+    }
+  }
+  return *this;
+}
+
 int64_t ObProxyTextPsParam::to_string(char *buf, const int64_t buf_len) const
 {
   int64_t pos = 0;
   J_OBJ_START();
-  J_KV(K_(str_value));
+  J_KV(K_(str_value), K_(is_alloc));
   J_OBJ_END();
   return pos;
 }
@@ -783,6 +883,52 @@ int64_t ObProxyTextPsInfo::to_string(char *buf, const int64_t buf_len) const
   return pos;
 }
 
+ObProxyTextPsInfo::ObProxyTextPsInfo(const ObProxyTextPsInfo &other)
+{
+
+  int ret = OB_SUCCESS;
+  is_param_valid_ = other.is_param_valid_;
+  param_count_ = other.param_count_;
+  for (int64_t i = 0; OB_SUCC(ret) && i < param_count_; i++) {
+    ObProxyTextPsParam *param = other.params_.at(i);
+    ObProxyTextPsParam *tmp_param = NULL;
+    if (OB_FAIL(ObProxyTextPsParam::alloc_text_ps_param(param->str_value_.ptr(), param->str_value_.length(), tmp_param))) {
+      LOG_WARN("fai lto alloc text ps param", K(ret));
+    } else {
+      *tmp_param = *param;
+      if (OB_FAIL(params_.push_back(tmp_param))) {
+        tmp_param->reset();
+        tmp_param = NULL;
+        LOG_WARN("fail to push back text ps param", K(ret));
+      }
+    }
+  }
+}
+
+ObProxyTextPsInfo& ObProxyTextPsInfo::operator=(const ObProxyTextPsInfo &other)
+{
+  int ret = OB_SUCCESS;
+  if (this != &other) {
+    is_param_valid_ = other.is_param_valid_;
+    param_count_ = other.param_count_;
+    for (int64_t i = 0; OB_SUCC(ret) && i < param_count_; i++) {
+      ObProxyTextPsParam *param = other.params_.at(i);
+      ObProxyTextPsParam *tmp_param = NULL;
+      if (OB_FAIL(ObProxyTextPsParam::alloc_text_ps_param(param->str_value_.ptr(), param->str_value_.length(), tmp_param))) {
+        LOG_WARN("fai lto alloc text ps param", K(ret));
+      } else {
+        *tmp_param = *param;
+        if (OB_FAIL(params_.push_back(tmp_param))) {
+          tmp_param->reset();
+          tmp_param = NULL;
+          LOG_WARN("fail to push back text ps param", K(ret));
+        }
+      }
+    }
+  }
+  return *this;
+}
+
 int64_t ObProxySimpleRouteInfo::to_string(char *buf, const int64_t buf_len) const
 {
   int64_t pos = 0;
@@ -840,7 +986,8 @@ int64_t SetVarNode::to_string(char* buf, const int64_t buf_len) const
   int64_t pos = 0;
   J_OBJ_START();
   J_KV(K_(var_type),
-       K_(var_name));
+       K_(var_name),
+       K_(is_alloc));
   if (SET_VALUE_TYPE_INT == value_type_) {
     J_COMMA();
     J_KV(K_(int_value));
@@ -920,6 +1067,7 @@ int ObProxySqlParser::parse_sql(const ObString &sql,
                                                                      drop_origin_db_table_name, is_sharding_request))) {
       LOG_INFO("fail to load result, will go on anyway", K(sql), K(use_lower_case_name), K(tmp_ret));
     } else {
+      sql_parse_result.set_multi_semicolon_in_stmt(ObProxySqlParser::is_multi_semicolon_in_stmt(sql));
       LOG_DEBUG("success to do proxy parse", K(sql_parse_result));
     }
 
@@ -1360,6 +1508,182 @@ int ObProxySqlParser::parse_sql_by_obparser(const ObString &sql,
   return ret;
 }
 
+// A simplified version from observer
+int ObProxySqlParser::split_multiple_stmt(const ObString &stmt,
+                                  ObIArray<ObString> &queries)
+{
+  int ret = OB_SUCCESS;
+
+  int64_t offset = 0;
+  int64_t remain = stmt.length();
+
+  trim_multi_stmt(stmt, remain);
+
+  // Special handling for empty statements
+  if (OB_UNLIKELY(0 >= remain)) {
+    ObString part;
+    ret = queries.push_back(part);
+  }
+
+  while (remain > 0 && OB_SUCC(ret)) {
+    int64_t str_len = 0;
+
+    //calc the end position of a single sql.
+    get_single_sql(stmt, offset, remain, str_len);
+    str_len = str_len == remain ? str_len : str_len + 1;
+    ObString query(static_cast<int32_t>(str_len), stmt.ptr() + offset);
+
+    remain -= str_len;
+    offset += str_len;
+  
+    if (remain < 0 || offset > stmt.length()) {
+      LOG_ERROR("split_multiple_stmt data error",
+                K(remain), K(offset), K(stmt.length()), K(ret));
+    } else if(OB_FAIL(queries.push_back(query))){
+      LOG_WARN("fail to push back part of multi stmt", K(stmt), K(ret));
+    }
+  }
+
+  return ret;
+}
+
+// avoid separeting sql by semicolons in quotes or comment.
+void ObProxySqlParser::get_single_sql(const common::ObString &stmt, int64_t offset, int64_t remain, int64_t &str_len) {
+  /* following two flags are used to mark wether we are in comment, if in comment, ';' can't be used to split sql*/
+  // in -- comment
+  bool comment_flag = false;
+  // in /*! comment */ or /* comment */
+  bool c_comment_flag = false;
+  /* follwing three flags are used to mark wether we are in quotes.*/
+  // in '', single quotes
+  bool sq_flag = false;
+  // in "", double quotes
+  bool dq_flag = false;
+  // in ``, backticks.
+  bool bt_flag = false;
+  //bool is_escape = false;
+
+  bool in_comment = false;
+  bool in_string  = false;
+  while (str_len < remain && (in_comment || in_string || (stmt[str_len + offset] != ';'))) {
+    if (!in_comment && !in_string) {
+      if (str_len + 1 >= remain) {
+      } else if ((stmt[str_len + offset] == '-' && stmt[str_len + offset + 1] == '-') || stmt[str_len + offset + 1] == '#') {
+        comment_flag = true;
+      } else if (stmt[str_len + offset] == '/' && stmt[str_len + offset + 1] == '*') {
+        c_comment_flag = true;
+      } else if (stmt[str_len + offset] == '\'') {
+        sq_flag = true;
+      } else if (stmt[str_len + offset] == '"') {
+        dq_flag = true;
+      } else if (stmt[str_len + offset] == '`') {
+        bt_flag = true;
+      }
+    } else if (in_comment) {
+      if (comment_flag) {
+        if (stmt[str_len + offset] == '\r' || stmt[str_len + offset] == '\n') {
+          comment_flag = false;
+        }
+      } else if (c_comment_flag) {
+        if (str_len + 1 >= remain) {
+
+        } else if (stmt[str_len + offset] == '*' && (str_len + 1 < remain) && stmt[str_len + offset + 1] == '/') {
+          c_comment_flag = false;
+        }
+      }
+    } else if (in_string) {
+      if (str_len + 1 >= remain) {
+      } else if (!bt_flag && stmt[str_len + offset] == '\\') {
+        // in mysql mode, handle the escape char in '' and ""
+        ++ str_len;
+      } else if (sq_flag) {
+        if (stmt[str_len + offset] == '\'') {
+          sq_flag = false;
+        }
+      } else if (dq_flag) {
+        if (stmt[str_len + offset] == '"') {
+          dq_flag = false;
+        }
+      } else if (bt_flag) {
+        if (stmt[str_len + offset] == '`') {
+          bt_flag = false;
+        }
+      }
+    }
+    ++ str_len;
+    
+    // update states.
+    in_comment = comment_flag || c_comment_flag;
+    in_string = sq_flag || bt_flag || dq_flag;
+  }
+}
+
+int ObProxySqlParser::preprocess_multi_stmt(ObArenaAllocator &allocator,
+                                            char* &multi_sql_buf,
+                                            const int64_t origin_sql_length,
+                                            ObSEArray<ObString, 4> &sql_array)
+{
+  int ret = OB_SUCCESS;
+  
+  const int64_t PARSE_EXTRA_CHAR_NUM = 2;
+  const int64_t total_sql_length = origin_sql_length
+                                   + (sql_array.count() * PARSE_EXTRA_CHAR_NUM);
+
+  if (OB_ISNULL(multi_sql_buf = static_cast<char*>(allocator.alloc(total_sql_length)))) {
+    ret = OB_REACH_MEMORY_LIMIT;
+    LOG_WARN("fail to alloc memory for multi_sql_buf", K(ret), K(total_sql_length));
+  } else {
+    MEMSET(multi_sql_buf, '\0', total_sql_length);
+    int64_t pos = 0;
+    for (int64_t i = 0; i < sql_array.count(); ++i) {
+      ObString& sql = sql_array.at(i);
+      MEMCPY(multi_sql_buf + pos ,sql.ptr(), sql.length());
+      sql.assign_ptr(multi_sql_buf + pos, sql.length());
+      pos += sql.length() + PARSE_EXTRA_CHAR_NUM;
+    }
+  }
+
+  return ret;
+}
+
+void ObProxySqlParser::trim_multi_stmt(const common::ObString &stmt, int64_t &remain) 
+{
+  // Bypass parser's unfriendly approach to empty query processing: remove the trailing spaces by yourself
+  while (remain > 0 && ISSPACE(stmt[remain - 1])) {
+    --remain;
+  }
+  //Remove the last '\0' to be compatible with mysql
+  if (remain > 0 && '\0' == stmt[remain - 1]) {
+    --remain;
+  }
+  //remove trailing spaces
+  while (remain > 0 && ISSPACE(stmt[remain - 1])) {
+    --remain;
+  }
+}
+
+bool ObProxySqlParser::is_multi_semicolon_in_stmt(const common::ObString &stmt)
+{
+  bool is_multi = false;
+  int64_t offset = 0;
+  int64_t remain = stmt.length();
+  int64_t str_len = 0;
+  trim_multi_stmt(stmt, remain);
+
+  // Special handling for empty statements
+  if (OB_UNLIKELY(0 >= remain)) {
+  } else {
+    get_single_sql(stmt, offset, remain, str_len);
+    remain -= str_len;
+    // 2: remain space for `;` and `\0`
+    if (remain > 2) {
+      is_multi = true;
+    }
+  }
+  return is_multi;
+}
+
+
 int64_t ObParseNode::to_string(char *buf, const int64_t buf_len) const
 {
   int64_t pos = 0;
@@ -1380,6 +1704,135 @@ int64_t ObParseNode::to_string(char *buf, const int64_t buf_len) const
   return pos;
 }
 
+void ObProxyCallParam::reset()
+{
+  type_ = CALL_TOKEN_NONE;
+  str_value_.reset();
+  if (is_alloc_) {
+    is_alloc_ = false;
+    ob_free(this);
+  }
+}
+
+int ObProxyCallParam::alloc_call_param(ObProxyCallParam*& param)
+{
+  int ret = OB_SUCCESS;
+  char* buf = NULL;
+  int64_t alloc_size = sizeof(ObProxyCallParam);
+  ObMemAttr mem_attr;
+  mem_attr.mod_id_ = common::ObModIds::OB_PROXY_SQL_PARSE;
+  if (OB_ISNULL(buf = static_cast<char *>(ob_malloc(alloc_size, mem_attr)))) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    LOG_WARN("fail to alloc mem for call param", K(alloc_size), K(ret));
+  } else {
+    param = new (buf) ObProxyCallParam();
+    param->is_alloc_ = true;
+  }
+  return ret;
+}
+
+void ObProxyTextPsParam::reset()
+{
+  str_value_.reset();
+  if (is_alloc_) {
+    is_alloc_ = false;
+    ob_free(this);
+  }
+}
+
+int ObProxyTextPsParam::alloc_text_ps_param(const char* str, const int str_len, ObProxyTextPsParam*& param)
+{
+  int ret = OB_SUCCESS;
+  char* buf = NULL;
+  int64_t alloc_size = sizeof(ObProxyTextPsParam);
+  param = NULL;
+  ObMemAttr mem_attr;
+  mem_attr.mod_id_ = ObModIds::OB_PROXY_SQL_PARSE;
+  if (OB_UNLIKELY(NULL == str || str_len <= 0)) {
+    ret = OB_INVALID_ARGUMENT;
+    LOG_WARN("invalid argument", K(str), K(str_len), K(ret));
+  } else if (OB_ISNULL(buf = static_cast<char *>(ob_malloc(alloc_size, mem_attr)))) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    LOG_WARN("fail to alloc mem for param", K(alloc_size), K(ret));
+  } else {
+    param = new (buf) ObProxyTextPsParam();
+    param->is_alloc_ = true;
+  }
+
+  if (OB_SUCC(ret)) {
+    param->str_value_.set_value(str_len, str);
+  }
+
+  if (OB_FAIL(ret) && NULL != param) {
+    param->reset();
+  }
+  return ret;
+}
+
+void SetVarNode::reset()
+{
+  value_type_ = SET_VALUE_TYPE_NONE;
+  var_type_ = SET_VAR_TYPE_NONE;
+  var_name_.reset();
+  int_value_ = 0;
+  str_value_.reset();
+  if (is_alloc_) {
+    is_alloc_ = false;
+    ob_free(this);
+  }
+}
+
+int SetVarNode::alloc_var_node(SetVarNode*& node)
+{
+  int ret = OB_SUCCESS;
+  char* buf = NULL;
+  int64_t alloc_size = sizeof(SetVarNode);
+  ObMemAttr mem_attr;
+  mem_attr.mod_id_ = ObModIds::OB_PROXY_SQL_PARSE;
+  if (OB_ISNULL(buf = static_cast<char *>(ob_malloc(alloc_size, mem_attr)))) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    LOG_WARN("fail to alloc mem for var node", K(alloc_size), K(ret));
+  } else {
+    node = new (buf) SetVarNode();
+    node->is_alloc_ = true;
+  }
+  return ret;
+}
+
+int SqlField::alloc_sql_field(SqlField*& field)
+{
+  int ret = OB_SUCCESS;
+  char* buf = NULL;
+  int64_t alloc_size = sizeof(SqlField);
+  ObMemAttr mem_attr;
+  mem_attr.mod_id_ = ObModIds::OB_PROXY_SQL_PARSE;
+  if (OB_ISNULL(buf = static_cast<char *>(ob_malloc(alloc_size, mem_attr)))) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    LOG_WARN("fail to alloc mem for call param", K(alloc_size), K(ret));
+  } else {
+    field = new (buf) SqlField();
+    field->is_alloc_ = true;
+  }
+  return ret;
+}
+
+SqlField& SqlField::operator=(const SqlField& other)
+{
+  int ret = OB_SUCCESS;
+  if (this != &other) {
+    column_name_ = other.column_name_;
+    value_type_ = other.value_type_;
+    column_int_value_ = other.column_int_value_;
+    column_value_ = other.column_value_;
+    for (int i = 0; OB_SUCC(ret) && i < other.column_values_.count(); i++) {
+      if (OB_FAIL(column_values_.push_back(other.column_values_.at(i)))) {
+        LOG_WARN("fail to push back column values", K(ret));
+      }
+    }
+  }
+  return *this;
+}
+
 } // end of namespace obutils
 } // end of namespace obproxy
 } // end of namespace oceanbase
diff --git a/src/obproxy/obutils/ob_proxy_sql_parser.h b/src/obproxy/obutils/ob_proxy_sql_parser.h
index 6fc7274d..54bf0e87 100644
--- a/src/obproxy/obutils/ob_proxy_sql_parser.h
+++ b/src/obproxy/obutils/ob_proxy_sql_parser.h
@@ -23,6 +23,8 @@
 #include "common/ob_hint.h"
 #include "lib/utility/ob_print_utils.h"
 #include "utils/ob_proxy_lib.h"
+#include "utils/ob_proxy_utils.h"
+#include "utils/ob_target_db_server.h"
 #include "obutils/ob_proxy_string_utils.h"
 #include <ob_sql_parser.h>
 #include <parse_malloc.h>
@@ -30,8 +32,8 @@
 
 #define OBPROXY_MAX_STRING_VALUE_LENGTH 512
 
-#define OBPROXY_CALL_NODE_COUNT 20
-#define OBPROXY_TEXT_PS_EXECUTE_NODE_COUNT 20
+#define OBPROXY_CALL_NODE_COUNT 3
+#define OBPROXY_TEXT_PS_EXECUTE_NODE_COUNT 3
 
 using namespace oceanbase::obproxy::opsql;
 
@@ -179,84 +181,72 @@ struct ObProxyCmdInfo
 
 struct ObProxyCallParam
 {
-  ObProxyCallParam() { reset(); }
+  ObProxyCallParam() : type_(CALL_TOKEN_NONE), str_value_(), is_alloc_(false) {}
   ~ObProxyCallParam() { reset(); }
   DECLARE_TO_STRING;
-  void reset()
-  {
-    type_ = CALL_TOKEN_NONE;
-    str_value_.reset();
-  }
-  static int32_t get_fix_buf_size() { return OBPROXY_MAX_STRING_VALUE_LENGTH; }
+  void reset();
+  static int alloc_call_param(ObProxyCallParam*& param);
 
   ObProxyCallTokenType type_;
-  ObFixSizeString<OBPROXY_MAX_STRING_VALUE_LENGTH> str_value_;
+  ObProxyVariantString str_value_;
+  bool is_alloc_;
 };
 
 struct ObProxyCallInfo
 {
-  ObProxyCallInfo() { reset(); }
+  ObProxyCallInfo() : params_(), param_count_(0), is_param_valid_(false) {}
   ~ObProxyCallInfo() { reset(); }
+  ObProxyCallInfo(const ObProxyCallInfo &other);
   DECLARE_TO_STRING;
-  ObProxyCallInfo& operator=(const ObProxyCallInfo &other)
-  {
-    if (this != &other) {
-      is_param_valid_ = other.is_param_valid_;
-      param_count_ = other.param_count_;
-      params_.assign(other.params_);
-    }
-    return *this;
-  }
+  ObProxyCallInfo& operator=(const ObProxyCallInfo &other);
 
   void reset()
   {
+    for (int64_t i = 0; i < param_count_; i++) {
+      ObProxyCallParam *param = params_.at(i);
+      param->reset();
+    }
     param_count_ = 0;
     is_param_valid_ = false;
     params_.reset();
   }
   bool is_valid() const { return is_param_valid_ && 0 <= param_count_; }
-  common::ObSEArray<ObProxyCallParam, OBPROXY_CALL_NODE_COUNT> params_;
+  common::ObSEArray<ObProxyCallParam*, OBPROXY_CALL_NODE_COUNT> params_;
   int32_t param_count_;
   bool is_param_valid_;//whether size is valid
 };
 
 struct ObProxyTextPsParam
 {
-  ObProxyTextPsParam() { reset(); }
+  ObProxyTextPsParam() : str_value_(), is_alloc_(false) { }
   ~ObProxyTextPsParam() { reset(); }
   DECLARE_TO_STRING;
-  void reset()
-  {
-    str_value_.reset();
-  }
-  static int32_t get_fix_buf_size() { return OBPROXY_MAX_STRING_VALUE_LENGTH; }
-
-  ObFixSizeString<OBPROXY_MAX_STRING_VALUE_LENGTH> str_value_;
+  void reset();
+  static int alloc_text_ps_param(const char* str, const int str_len, ObProxyTextPsParam*& param);
+  ObProxyVariantString str_value_;
+  bool is_alloc_;
 };
 
 struct ObProxyTextPsInfo
 {
-  ObProxyTextPsInfo() { reset(); }
+  ObProxyTextPsInfo() : params_(), param_count_(0), is_param_valid_(false) {}
   ~ObProxyTextPsInfo() { reset(); }
+  ObProxyTextPsInfo(const ObProxyTextPsInfo &other);
   DECLARE_TO_STRING;
-  ObProxyTextPsInfo& operator=(const ObProxyTextPsInfo &other)
-  {
-    if (this != &other) {
-      is_param_valid_ = other.is_param_valid_;
-      param_count_ = other.param_count_;
-      params_.assign(other.params_);
-    }
-    return *this;
-  }
+  ObProxyTextPsInfo& operator=(const ObProxyTextPsInfo &other);
 
   void reset()
   {
+    for (int64_t i = 0; i < param_count_; i++) {
+      ObProxyTextPsParam *param = params_.at(i);
+      param->reset();
+    }
     param_count_ = 0;
     is_param_valid_ = false;
     params_.reset();
   }
   bool is_valid() const { return is_param_valid_ && 0 <= param_count_; }
-  common::ObSEArray<ObProxyTextPsParam, OBPROXY_TEXT_PS_EXECUTE_NODE_COUNT> params_;
+  common::ObSEArray<ObProxyTextPsParam*, OBPROXY_TEXT_PS_EXECUTE_NODE_COUNT> params_;
   int32_t param_count_;
   bool is_param_valid_;//whether size is valid
 };
@@ -301,14 +291,16 @@ struct SqlColumnValue
     column_int_value_ = 0;
     column_value_.reset();
   }
-  TO_STRING_KV(K_(value_type), K(column_int_value_), K(column_value_));
+  TO_STRING_KV(K_(value_type), K_(column_int_value), K_(column_value));
   ObProxyTokenType value_type_;
   int64_t  column_int_value_;
-  ObFixSizeString<OBPROXY_MAX_STRING_VALUE_LENGTH> column_value_;
+  ObProxyVariantString column_value_;
 };
 
 struct SqlField {
-  SqlField() { reset(); }
+  SqlField() : column_name_(), column_values_(), value_type_(TOKEN_NONE),
+              column_int_value_(0), column_value_(), is_alloc_(false) {}
+
   ~SqlField() { reset(); }
 
   void reset() {
@@ -317,31 +309,26 @@ struct SqlField {
     column_int_value_ = 0;
     column_value_.reset();
     column_values_.reset();
+    if (is_alloc_) {
+      is_alloc_ = false;
+      ob_free(this);
+    }
   }
   DECLARE_TO_STRING;
 
   bool is_valid() const { return column_values_.count() > 0; }
 
-  SqlField& operator=(const SqlField& other)
-  {
-    if (this != &other) {
-      column_name_ = other.column_name_;
-      value_type_ = other.value_type_;
-      column_int_value_ = other.column_int_value_;
-      column_value_ = other.column_value_;
-      for (int i = 0; i < other.column_values_.count(); i++) {
-        column_values_.push_back(other.column_values_.at(i));
-      }
-    }
-    return *this;
-  }
+  SqlField& operator=(const SqlField& other);
+
+  static int alloc_sql_field(SqlField*& field);
+  ObProxyVariantString column_name_;
 
-  ObFixSizeString<OBPROXY_MAX_STRING_VALUE_LENGTH> column_name_;
   common::ObSEArray<SqlColumnValue, 3> column_values_;
   // TODO: erase deprecated
   ObProxyTokenType value_type_;
   int64_t  column_int_value_;
-  obutils::ObProxyVariantString column_value_;
+  ObProxyVariantString column_value_;
+  bool is_alloc_;
 };
 
 struct SqlFieldResult {
@@ -350,13 +337,17 @@ struct SqlFieldResult {
 
   void reset()
   {
+    for (int64_t i = 0; i < field_num_; i++) {
+      SqlField* field = fields_.at(i);
+      field->reset();
+    }
     field_num_ = 0;
     fields_.reset();
   }
   DECLARE_TO_STRING;
 
   int field_num_;
-  common::ObSEArray<SqlField, 5> fields_;
+  common::ObSEArray<SqlField*, 5> fields_;
 };
 
 struct DbMeshRouteInfo {
@@ -406,40 +397,44 @@ struct DbMeshRouteInfo {
 };
 
 struct SetVarNode {
-  SetVarNode() { reset(); }
+  SetVarNode() : var_name_(), int_value_(0), str_value_(),
+                 value_type_(SET_VALUE_TYPE_NONE),
+                 var_type_(SET_VAR_TYPE_NONE), is_alloc_(false) {}
   ~SetVarNode() { reset(); }
 
-  void reset() {
-    var_name_.reset();
-    str_value_.reset();
-    int_value_ = 0;
-    value_type_ = SET_VALUE_TYPE_ONE;
-    var_type_ = SET_VAR_TYPE_NONE;
-  }
+  void reset();
+  static int alloc_var_node(SetVarNode*& node);
   DECLARE_TO_STRING;
 
-  ObFixSizeString<OBPROXY_MAX_STRING_VALUE_LENGTH> var_name_;
+  ObProxyVariantString var_name_;
 
   int64_t  int_value_;
-  ObFixSizeString<OBPROXY_MAX_STRING_VALUE_LENGTH> str_value_;
-
+  obutils::ObProxyVariantString str_value_;
   ObProxySetValueType value_type_;
   ObProxySetVarType var_type_;
+  bool is_alloc_;
 };
 
 struct ObProxySetInfo {
-  ObProxySetInfo() { reset(); }
+  ObProxySetInfo() : node_count_(0), var_nodes_() {}
   ~ObProxySetInfo() { reset(); }
 
   void reset()
   {
+    for (int64_t i = 0; i < node_count_; i++) {
+      SetVarNode *node = var_nodes_.at(i);
+      node->reset();
+    }
     node_count_ = 0;
     var_nodes_.reset();
   }
   DECLARE_TO_STRING;
 
   int node_count_;
-  common::ObSEArray<SetVarNode, 5> var_nodes_;
+  common::ObSEArray<SetVarNode*, 3> var_nodes_;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(ObProxySetInfo);
 };
 
 struct DbpRouteInfo {
@@ -451,6 +446,7 @@ struct DbpRouteInfo {
     has_group_info_ = false;
     group_idx_ = OBPROXY_MAX_DBMESH_ID;
     scan_all_ = false;
+    sticky_session_ = false;
     table_name_.reset();
     has_shard_key_ = false;
   }
@@ -463,11 +459,11 @@ struct DbpRouteInfo {
 
   bool is_group_info_valid() const {
     // table_name can be empty
-    return OBPROXY_MAX_DBMESH_ID != group_idx_ && group_idx_ >= 0 && !scan_all_;
+    return OBPROXY_MAX_DBMESH_ID != group_idx_ && group_idx_ >= 0 && !scan_all_ && !sticky_session_;
   }
 
   bool is_shard_key_valid() const {
-    return !scan_all_;
+    return !scan_all_ && !sticky_session_;
   }
 
   bool is_error_info() const
@@ -486,6 +482,7 @@ struct DbpRouteInfo {
   bool has_group_info_;
   int64_t group_idx_;
   bool scan_all_;
+  bool sticky_session_;
   common::ObString table_name_;
   char table_name_str_[common::OB_MAX_TABLE_NAME_LENGTH];
   bool has_shard_key_;
@@ -519,7 +516,7 @@ typedef struct  _ObProxyDualParseResult
 struct ObSqlParseResult
 {
   ObSqlParseResult() : allocator_(common::ObModIds::OB_PROXY_SHARDING_PARSE),
-    text_ps_buf_(NULL), text_ps_buf_len_(0), ob_parser_result_(NULL), proxy_stmt_(NULL) { reset(); }
+    text_ps_buf_(NULL), text_ps_buf_len_(0), target_db_server_(NULL), ob_parser_result_(NULL), proxy_stmt_(NULL) { reset(); }
   ~ObSqlParseResult() { reset(); }
   void clear_proxy_stmt();
   void reset(bool is_reset_origin_db_table = true);
@@ -549,7 +546,6 @@ struct ObSqlParseResult
   bool is_show_session_stmt() const { return OBPROXY_T_ICMD_SHOW_SESSION == stmt_type_; }
   bool is_select_tx_ro() const { return OBPROXY_T_SELECT_TX_RO == stmt_type_; }
   bool is_select_proxy_version() const { return OBPROXY_T_SELECT_PROXY_VERSION == stmt_type_; }
-  bool is_set_autocommit_0() const { return OBPROXY_T_SET_AC_0 == stmt_type_; }
   bool is_select_route_addr() const { return OBPROXY_T_SELECT_ROUTE_ADDR == stmt_type_; }
   bool is_set_route_addr() const { return OBPROXY_T_SET_ROUTE_ADDR == stmt_type_; }
   bool is_set_ob_read_consistency() const { return OBPROXY_T_SET_OB_READ_CONSISTENCY == stmt_type_; }
@@ -567,6 +563,7 @@ struct ObSqlParseResult
   bool is_show_tables_stmt() const { return OBPROXY_T_SHOW == stmt_type_ && OBPROXY_T_SUB_SHOW_TABLES == cmd_sub_type_; }
   bool is_show_full_tables_stmt() const { return OBPROXY_T_SHOW == stmt_type_ && OBPROXY_T_SUB_SHOW_FULL_TABLES == cmd_sub_type_; }
   bool is_show_table_status_stmt() const { return OBPROXY_T_SHOW == stmt_type_ && OBPROXY_T_SUB_SHOW_TABLE_STATUS == cmd_sub_type_; }
+  bool is_show_elastic_id_stmt() const { return OBPROXY_T_SHOW == stmt_type_ && OBPROXY_T_SUB_SHOW_ELASTIC_ID == cmd_sub_type_; }
   bool is_show_topology_stmt() const { return OBPROXY_T_SHOW == stmt_type_ && OBPROXY_T_SUB_SHOW_TOPOLOGY == cmd_sub_type_; }
   bool is_show_db_version_stmt() const { return OBPROXY_T_SHOW == stmt_type_ && OBPROXY_T_SUB_SHOW_DB_VERSION == cmd_sub_type_; }
   bool is_desc_table_stmt() const { return OBPROXY_T_DESC == stmt_type_ && OBPROXY_T_SUB_DESC_TABLE == cmd_sub_type_; }
@@ -606,6 +603,16 @@ struct ObSqlParseResult
   bool is_text_ps_execute_stmt() const { return OBPROXY_T_TEXT_PS_EXECUTE == stmt_type_; }
   bool is_text_ps_drop_stmt() const { return OBPROXY_T_TEXT_PS_DROP == stmt_type_; }
 
+  bool is_binlog_stmt() const
+  {
+    return OBPROXY_T_SHOW_MASTER_STATUS == stmt_type_
+           || OBPROXY_T_SHOW_BINARY_LOGS == stmt_type_
+           || OBPROXY_T_SHOW_BINLOG_EVENTS == stmt_type_
+           || OBPROXY_T_PURGE_BINARY_LOGS == stmt_type_
+           || OBPROXY_T_RESET_MASTER == stmt_type_
+           || OBPROXY_T_SHOW_BINLOG_SERVER_FOR_TENANT == stmt_type_;
+  }
+
   bool is_internal_select() const { return is_select_tx_ro() || is_select_proxy_version(); }
   bool is_dual_request() const {return is_dual_request_;}
   bool is_internal_request() const;
@@ -629,6 +636,7 @@ struct ObSqlParseResult
 
   bool is_shard_special_cmd() const;
 
+  bool is_multi_semicolon_in_stmt() const { return is_multi_semicolon_in_stmt_; }
   bool has_last_insert_id() const { return has_last_insert_id_; }
   bool has_found_rows() const { return has_found_rows_; }
   bool has_row_count() const { return has_row_count_; }
@@ -644,6 +652,7 @@ struct ObSqlParseResult
   bool has_show_warnings() const { return is_show_warnings_stmt(); }
 
   bool need_hold_start_trans() const { return is_start_trans_stmt(); }
+  bool need_hold_xa_start() const { return is_xa_start_stmt_; }
   // has a function depend on the sql last executed, such as found_rows , row_count, etc.
   bool has_dependent_func() const;
   // whether a sql is not supported by PROXY (BUT it is supported by observer)
@@ -669,6 +678,9 @@ struct ObSqlParseResult
   const common::ObString get_trace_id() const { return trace_id_; }
   const common::ObString get_rpc_id() const { return rpc_id_; }
 
+  // route server addrs in sql comment
+  ObTargetDbServer* get_target_db_server() const { return target_db_server_; }
+
   char *get_table_name_str() { return table_name_.ptr(); }
   int64_t get_table_name_length() const { return table_name_.length(); }
   char *get_package_name_str() { return package_name_.ptr(); }
@@ -686,6 +698,7 @@ struct ObSqlParseResult
 
   void set_stmt_type(const ObProxyBasicStmtType type) { stmt_type_ = type; }
   void set_err_stmt_type(const ObProxyErrorStmtType type) { cmd_err_type_ = type; }
+  void set_xa_start_stmt(bool is_xa_start) { is_xa_start_stmt_ = is_xa_start; }
   int set_db_name(const ObProxyParseString &database_name,
                   const bool use_lower_case_name = false,
                   const bool drop_origin_db_table_name = false);
@@ -700,6 +713,7 @@ struct ObSqlParseResult
   int set_dbmesh_route_info(const ObProxyParseResult &obproxy_parse_result);
   int set_var_info(const ObProxyParseResult &parse_result);
   int set_text_ps_info(ObProxyTextPsInfo& text_ps_info, const ObProxyTextPsParseInfo &execute_parse_info);
+  void set_multi_semicolon_in_stmt(bool is_multi_semicolon_in_stmt) {is_multi_semicolon_in_stmt_ = is_multi_semicolon_in_stmt;}
   int load_result(const ObProxyParseResult &obproxy_parse_result,
                   const bool use_lower_case_name = false,
                   const bool save_origin_db_table_name = false,
@@ -737,6 +751,7 @@ struct ObSqlParseResult
       has_simple_route_info_ = other.has_simple_route_info_;
       has_anonymous_block_ = other.has_anonymous_block_;
       has_for_update_ = other.has_for_update_;
+      is_xa_start_stmt_ = other.is_xa_start_stmt_;
       stmt_type_ = other.stmt_type_;
       hint_query_timeout_ = other.hint_query_timeout_;
       parsed_length_ = other.parsed_length_;
@@ -752,6 +767,7 @@ struct ObSqlParseResult
       alias_name_quote_ = other.alias_name_quote_;
       col_name_quote_ = other.col_name_quote_;
       text_ps_inner_stmt_type_ = other.text_ps_inner_stmt_type_;
+      is_multi_semicolon_in_stmt_ = other.is_multi_semicolon_in_stmt_;
       table_name_.assign_ptr(dml_buf_.table_name_buf_, other.table_name_.length());
       package_name_.assign_ptr(dml_buf_.package_name_buf_, other.package_name_.length());
       database_name_.assign_ptr(dml_buf_.database_name_buf_, other.database_name_.length());
@@ -783,6 +799,18 @@ struct ObSqlParseResult
       trace_id_.assign_ptr(trace_id_buf_, other.trace_id_.length());
       MEMCPY(rpc_id_buf_, other.rpc_id_buf_, other.rpc_id_.length());
       rpc_id_.assign_ptr(rpc_id_buf_, other.rpc_id_.length());
+
+      // copy target db server in sql comment
+      if (OB_ISNULL(other.target_db_server_)) {
+        if (OB_NOT_NULL(target_db_server_)) {
+          op_free(target_db_server_);
+          target_db_server_ = NULL;
+        }
+      } else if (OB_ISNULL(target_db_server_) && OB_ISNULL(target_db_server_ = op_alloc(ObTargetDbServer))) {
+        PROXY_LOG(WARN, "fail to alloc memory for target db server");
+      } else {
+        *target_db_server_ = *other.target_db_server_;
+      }
     }
     return *this;
   }
@@ -807,6 +835,7 @@ struct ObSqlParseResult
     database_name_quote_ = other.database_name_quote_;
     alias_name_quote_ = other.alias_name_quote_;
     col_name_quote_ = other.col_name_quote_;
+    is_multi_semicolon_in_stmt_ = other.is_multi_semicolon_in_stmt_;
     table_name_.assign_ptr(dml_buf_.table_name_buf_, other.table_name_.length());
     package_name_.assign_ptr(dml_buf_.package_name_buf_, other.package_name_.length());
     database_name_.assign_ptr(dml_buf_.database_name_buf_, other.database_name_.length());
@@ -824,6 +853,18 @@ struct ObSqlParseResult
     trace_id_.assign_ptr(trace_id_buf_, other.trace_id_.length());
     MEMCPY(rpc_id_buf_, other.rpc_id_buf_, other.rpc_id_.length());
     rpc_id_.assign_ptr(rpc_id_buf_, other.rpc_id_.length());
+
+    // copy target db server addr in sql comment
+    if (OB_ISNULL(other.target_db_server_)) {
+      if (OB_NOT_NULL(target_db_server_)) {
+        op_free(target_db_server_);
+        target_db_server_ = NULL;
+      }    
+    } else if (OB_ISNULL(target_db_server_) && OB_ISNULL(target_db_server_ = op_alloc(ObTargetDbServer))) {
+      PROXY_LOG(WARN, "fail to alloc memory target db server");
+    } else {
+      *target_db_server_ = *other.target_db_server_;
+    }
   }
 
   ObProxyCmdInfo cmd_info_;
@@ -841,6 +882,7 @@ struct ObSqlParseResult
   bool is_dual_request_;
   bool has_anonymous_block_;
   bool has_for_update_;
+  bool is_xa_start_stmt_;
   ObProxyBasicStmtType stmt_type_;
   int64_t hint_query_timeout_;
   int64_t parsed_length_; // next parser can starts with (orig_sql + parsed_length_)
@@ -878,6 +920,8 @@ struct ObSqlParseResult
   common::ObString rpc_id_;
   char rpc_id_buf_[common::OB_MAX_OBPROXY_TRACE_ID_LENGTH];
 
+  ObTargetDbServer *target_db_server_;
+
   SqlFieldResult fileds_result_;
   int64_t batch_insert_values_count_;
   DbMeshRouteInfo dbmesh_route_info_;
@@ -886,6 +930,7 @@ struct ObSqlParseResult
   bool use_dbp_hint_;
   ObProxyDualParseResult dual_result_;
   ObDmlBuf origin_dml_buf_;
+  bool is_multi_semicolon_in_stmt_;
 
   // buffer holder
   union {
@@ -931,6 +976,15 @@ class ObProxySqlParser
                               oceanbase::common::ObArenaAllocator &allocator);
   static int init_ob_parser_node(oceanbase::common::ObArenaAllocator &allocator, ObParseNode *&ob_node);
   static int get_parse_allocator(common::ObArenaAllocator *&allocator);
+  static int split_multiple_stmt(const common::ObString &stmt,
+                          common::ObIArray<common::ObString> &queries);
+  static void get_single_sql(const common::ObString &stmt, int64_t offset, int64_t remain, int64_t &str_len);
+  static int preprocess_multi_stmt(common::ObArenaAllocator &allocator,
+                                   char* &multi_sql_buf,
+                                   const int64_t origin_sql_length,
+                                   common::ObSEArray<ObString, 4> &sql_array);
+  static void trim_multi_stmt(const common::ObString &stmt, int64_t &remain);
+  static bool is_multi_semicolon_in_stmt(const common::ObString &stmt);
 };
 
 inline void ObSqlParseResult::reset(bool is_reset_origin_db_table /* true */)
@@ -944,6 +998,7 @@ inline void ObSqlParseResult::reset(bool is_reset_origin_db_table /* true */)
   is_dual_request_ = false;
   has_anonymous_block_ = false;
   has_for_update_ = false;
+  is_xa_start_stmt_ = false;
   stmt_type_ = OBPROXY_T_INVALID;
   cmd_sub_type_ = OBPROXY_T_SUB_INVALID;
   cmd_err_type_ = OBPROXY_T_ERR_INVALID;
@@ -958,6 +1013,11 @@ inline void ObSqlParseResult::reset(bool is_reset_origin_db_table /* true */)
   part_name_.reset();
   trace_id_.reset();
   rpc_id_.reset();
+  
+  if (OB_NOT_NULL(target_db_server_)) {
+    op_free(target_db_server_);
+    target_db_server_ = NULL;
+  }
 
   if (is_reset_origin_db_table) {
     origin_table_name_.reset();
@@ -991,6 +1051,7 @@ inline void ObSqlParseResult::reset(bool is_reset_origin_db_table /* true */)
   col_name_quote_ = OBPROXY_QUOTE_T_INVALID;
   dbp_route_info_.reset();
   use_dbp_hint_ = false;
+  is_multi_semicolon_in_stmt_ = false;
   ob_parser_result_ = NULL; //TODO check delete it
 }
 
@@ -1084,7 +1145,6 @@ inline bool ObSqlParseResult::is_internal_request() const
 {
   return (is_not_supported()
           || is_internal_select()
-          || is_set_autocommit_0()
           || is_set_route_addr()
           || is_select_route_addr()
           || is_ping_proxy_cmd());
@@ -1101,6 +1161,7 @@ inline bool ObSqlParseResult::is_shard_special_cmd() const
           || is_use_db_stmt()
           || is_show_databases_stmt()
           || is_show_db_version_stmt()
+          || is_show_elastic_id_stmt()
           || is_show_topology_stmt());
 }
 
@@ -1123,7 +1184,6 @@ inline bool ObSqlParseResult::is_need_resp_ok_cmd() const
 {
   return (is_set_stmt()
           || is_start_trans_stmt()
-          || is_set_autocommit_0()
           || is_commit_stmt()
           || is_rollback_stmt());
 }
diff --git a/src/obproxy/obutils/ob_proxy_stmt.cpp b/src/obproxy/obutils/ob_proxy_stmt.cpp
index c6e92a20..b61a7152 100644
--- a/src/obproxy/obutils/ob_proxy_stmt.cpp
+++ b/src/obproxy/obutils/ob_proxy_stmt.cpp
@@ -23,8 +23,8 @@ namespace obproxy
 namespace obutils
 {
 
-ObProxyDMLStmt::ObProxyDMLStmt(common::ObIAllocator& allocator): ObProxyStmt(allocator), limit_offset_(0), limit_size_(-1), limit_token_off_(-1),dml_field_results_(),comments_(),
-                  column_name_array_(),  table_name_(), is_inited_(false), has_unsupport_expr_type_(false),table_pos_array_()
+ObProxyDMLStmt::ObProxyDMLStmt(common::ObIAllocator& allocator): ObProxyStmt(allocator), limit_offset_(0), limit_size_(-1), limit_token_off_(-1), dml_field_results_(), comments_(),
+                column_name_array_(), table_name_(), is_inited_(false), has_unsupport_expr_type_(false), table_pos_array_(), has_rollup_(false), has_for_update_(false), from_token_off_(-1), t_case_level_(0)
 {
   field_results_ = &dml_field_results_;
 }
@@ -38,6 +38,21 @@ ObProxyDMLStmt::~ObProxyDMLStmt()
     expr->~ObProxyExpr();
   }
 
+  for (int64_t i = 0; i < select_exprs_.count(); i++) {
+    ObProxyExpr *expr = select_exprs_.at(i);
+    expr->~ObProxyExpr();
+  }
+
+  for (int64_t i = 0; i < group_by_exprs_.count(); i++) {
+    ObProxyGroupItem *group_expr = group_by_exprs_.at(i);
+    group_expr->~ObProxyGroupItem();
+  }
+
+  for (int64_t i = 0; i < order_by_exprs_.count(); i++) {
+    ObProxyOrderItem *order_expr = order_by_exprs_.at(i);
+    order_expr->~ObProxyOrderItem();
+  }
+
   table_exprs_map_.destroy();
   alias_table_map_.destroy();
 }
@@ -176,7 +191,7 @@ int ObProxyDMLStmt::handle_from_list(ParseNode* node)
     tmp_node = node->children_[i];
     if (NULL == tmp_node) {
       // do nothing
-    }  else {
+    } else {
       switch(tmp_node->type_) {
         case T_ORG:
         case T_ALIAS:
@@ -217,6 +232,7 @@ int ObProxyDMLStmt::handle_table_node_to_expr(ParseNode* node)
   int ret = OB_SUCCESS;
   ParseNode* tmp_node = NULL;
   ObProxyExprTable* expr_table = NULL;
+  bool is_sub_query = false;
   for (int i = 0; OB_SUCC(ret) && i < node->num_child_; i++) {
     tmp_node = node->children_[i];
     if (NULL == tmp_node) {
@@ -229,20 +245,28 @@ int ObProxyDMLStmt::handle_table_node_to_expr(ParseNode* node)
           }
           break;
         case T_IDENT:
-          if (OB_ISNULL(expr_table)) {
+          if (is_sub_query) {
+            // skip alias
+          } else if (OB_ISNULL(expr_table)) {
             ret = OB_ERR_UNEXPECTED;
             LOG_WARN("fail to get expr table", K(ret));
-          } else if (OB_UNLIKELY(NULL == tmp_node->str_value_ || 0 >= tmp_node->token_len_)) {
+          } else if (OB_UNLIKELY(NULL == tmp_node->str_value_ || 0 >= tmp_node->str_len_)) {
             ret = OB_ERR_UNEXPECTED;
-            LOG_WARN("alias token meet some wrong", "token len", tmp_node->token_len_, K(ret));
+            LOG_WARN("alias token meet some wrong", "str len", tmp_node->str_len_, K(ret));
           } else {
-            ObString alias_table = ObString::make_string(tmp_node->str_value_);
+            ObString alias_table(static_cast<int32_t>(tmp_node->str_len_), tmp_node->str_value_);
             if (OB_FAIL(alias_table_map_.set_refactored(alias_table, expr_table))) {
               LOG_WARN("fail to add alias table set", K(alias_table), K(ret));
             }
           }
           break;
-        case T_SELECT: //sub query in "table node" not support in DML sql except select
+        case T_SELECT:
+          if (OB_FAIL(do_handle_parse_result(tmp_node))) {
+            LOG_WARN("fail to do handle parse result", "node_type", get_type_name(tmp_node->type_), K(ret));
+          } else {
+            is_sub_query = true;
+          }
+          break;
         default:
           has_unsupport_expr_type_ = true;
           LOG_WARN("unsupport type", "node_type", get_type_name(node->type_),  K(node->str_value_));
@@ -268,19 +292,19 @@ int ObProxyDMLStmt::get_table_and_db_expr(ParseNode* node, ObProxyExprTable* &ex
     LOG_WARN("T_RELATION_FACTOR children node is not 2", K(node->num_child_), K(ret));
   } else if (FALSE_IT(db_node = node->children_[0])) {
   } else if (NULL != db_node
-             && OB_UNLIKELY(T_IDENT != db_node->type_ || NULL == db_node->str_value_ || 0 >= db_node->token_len_)) {
+             && OB_UNLIKELY(T_IDENT != db_node->type_ || NULL == db_node->str_value_ || 0 >= db_node->str_len_)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("T_RELATION_FACTOR unexpected table entry", "node type", db_node->type_,
-             "token len", db_node->token_len_, K(ret));
+             "str len", db_node->str_len_, K(ret));
   } else if (OB_ISNULL(table_node = node->children_[1])) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("unexpected null", K(ret));
-  } else if (OB_UNLIKELY(T_IDENT != table_node->type_ || NULL == table_node->str_value_ || 0 >= table_node->token_len_)) {
+  } else if (OB_UNLIKELY(T_IDENT != table_node->type_ || NULL == table_node->str_value_ || 0 >= table_node->str_len_)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("T_RELATION_FACTOR unexpected table entry", "node type", table_node->type_,
-             "token len", table_node->token_len_, K(ret));
+             "str len", table_node->str_len_, K(ret));
   } else {
-    ObString table_name(table_node->token_len_, table_node->str_value_);
+    ObString table_name(static_cast<int32_t>(table_node->str_len_), table_node->str_value_);
     string_to_upper_case(table_name.ptr(), table_name.length()); // change all to upper to store
     if (OB_FAIL(table_exprs_map_.get_refactored(table_name, expr))) { /* same table keep last one. */
       if (OB_HASH_NOT_EXIST == ret) {
@@ -293,11 +317,11 @@ int ObProxyDMLStmt::get_table_and_db_expr(ParseNode* node, ObProxyExprTable* &ex
           LOG_WARN("dynamic_cast failed", K(ret));
         } else {
           if (NULL != db_node) {
-            ObString database_name(db_node->token_len_, db_node->str_value_);
+            ObString database_name(static_cast<int32_t>(db_node->str_len_), db_node->str_value_);
             string_to_upper_case(database_name.ptr(), database_name.length()); // change all to upper to store
-            expr_table->set_database_name(db_node->str_value_, db_node->token_len_);
+            expr_table->set_database_name(db_node->str_value_, static_cast<int32_t>(db_node->str_len_));
           }
-          expr_table->set_table_name(table_node->str_value_, table_node->token_len_);
+          expr_table->set_table_name(table_node->str_value_, static_cast<int32_t>(table_node->str_len_));
 
           if (OB_FAIL(table_exprs_map_.set_refactored(table_name, expr_table))) { /* same table keep last one. */
             LOG_WARN("fail to add table expr", K(table_name), K(ret));
@@ -311,9 +335,9 @@ int ObProxyDMLStmt::get_table_and_db_expr(ParseNode* node, ObProxyExprTable* &ex
         ret = OB_ERR_UNEXPECTED;
         LOG_WARN("dynamic_cast failed", K(ret));
       } else if (NULL != db_node && expr_table->get_database_name().empty()) {
-        ObString database_name(db_node->token_len_, db_node->str_value_);
+        ObString database_name(static_cast<int32_t>(db_node->str_len_), db_node->str_value_);
         string_to_upper_case(database_name.ptr(), database_name.length()); // change all to upper to store
-        expr_table->set_database_name(db_node->str_value_, db_node->token_len_);
+        expr_table->set_database_name(db_node->str_value_, static_cast<int32_t>(db_node->str_len_));
       }
     }
   }
@@ -342,13 +366,13 @@ int ObProxyDMLStmt::handle_table_and_db_node(ParseNode* node, ObProxyExprTable*
   ParseNode* table_node = node->children_[1];
   if (OB_ISNULL(table_node)) {
     // do nothing
-  } else if (OB_UNLIKELY(T_IDENT != table_node->type_ || NULL == table_node->str_value_ || 0 >= table_node->token_len_)) {
+  } else if (OB_UNLIKELY(T_IDENT != table_node->type_ || NULL == table_node->str_value_ || 0 >= table_node->str_len_)) {
     ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("unexpected table node", "node type", table_node->type_, "token len", table_node->token_len_, K(ret));
+    LOG_WARN("unexpected table node", "node type", table_node->type_, "str len", table_node->str_len_, K(ret));
   } else if (NULL != db_node
-             && OB_UNLIKELY(T_IDENT != db_node->type_ || NULL == db_node->str_value_ || 0 >= db_node->token_len_)) {
+             && OB_UNLIKELY(T_IDENT != db_node->type_ || NULL == db_node->str_value_ || 0 >= db_node->str_len_)) {
     ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("unexpected db node", "node type", db_node->type_, "token len", db_node->token_len_, K(ret));
+    LOG_WARN("unexpected db node", "node type", db_node->type_, "str len", db_node->str_len_, K(ret));
   } else {
     ObProxyExpr* expr = NULL;
     ObString table_name = ObString::make_string(table_node->str_value_);
@@ -388,22 +412,23 @@ int ObProxyDMLStmt::handle_table_references(ParseNode *node)
   for (int i = 0; OB_SUCC(ret) && i < node->num_child_; i++) {
     ParseNode *tmp_node = node->children_[i];
     if (NULL == tmp_node) {
-      continue;
-    }
-    switch (tmp_node->type_) {
-      case T_ORG:
-      case T_ALIAS:
-        if (OB_FAIL(handle_table_node_to_expr(tmp_node))) {
-          LOG_WARN("fail to handle table node to expr", K(sql_string_), K(ret));
-        }
-        break;
-      //sql: delete tbl_name1,tbl_name2 ...
-      //MULTI DELETE STMT is not support now
-      case T_RELATION_FACTOR:
-        break;
-      default:
-        has_unsupport_expr_type_ = true;
-        LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
+      //do nothing
+    } else {
+      switch (tmp_node->type_) {
+        case T_ORG:
+        case T_ALIAS:
+          if (OB_FAIL(handle_table_node_to_expr(tmp_node))) {
+            LOG_WARN("fail to handle table node to expr", K(sql_string_), K(ret));
+          }
+          break;
+        //sql: delete tbl_name1,tbl_name2 ...
+        //MULTI DELETE STMT is not support now
+        case T_RELATION_FACTOR:
+          break;
+        default:
+          has_unsupport_expr_type_ = true;
+          LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
+      }
     }
   }
   return ret;
@@ -440,6 +465,13 @@ int ObProxyDMLStmt::handle_where_clause(ParseNode* node)
             }
             break;
           }
+          case T_CASE:
+            t_case_level_++;
+            if (OB_FAIL(handle_where_clause(tmp_node))) {
+              LOG_WARN("handle_where_nodes failed", K(sql_string_), K(ret));
+            }
+            t_case_level_--;
+            break;
           default:
             if (OB_FAIL(handle_where_clause(tmp_node))) {
               LOG_WARN("handle_where_nodes failed", K(sql_string_), K(ret));
@@ -461,6 +493,9 @@ int ObProxyDMLStmt::handle_column_and_value(ParseNode* node)
   SqlField sql_field;
   SqlColumnValue column_value;
   bool is_skip_field = false;
+  if (t_case_level_ > 0) {
+    is_skip_field = true;
+  }
   if (OB_ISNULL(field_results_)) {
     LOG_WARN("unexpected null");
     ret = OB_ERR_UNEXPECTED;
@@ -485,7 +520,7 @@ int ObProxyDMLStmt::handle_column_and_value(ParseNode* node)
             } else {
               if (NULL == expr_table
                   || 0 == expr_table->get_table_name().case_compare(table_name_)) {
-                sql_field.column_name_.set(expr_column->get_column_name());
+                sql_field.column_name_.set_value(expr_column->get_column_name());
               } else {
                 is_skip_field = true;
               }
@@ -504,8 +539,8 @@ int ObProxyDMLStmt::handle_column_and_value(ParseNode* node)
               sql_field.column_int_value_ = tmp_node->value_;
             }
             column_value.value_type_ = TOKEN_STR_VAL;
-            column_value.column_value_.set(tmp_node->str_value_);
-            sql_field.column_values_.push_back(column_value);
+            column_value.column_value_.set_value(tmp_node->str_value_);
+            ret = sql_field.column_values_.push_back(column_value);
             break;
           case T_VARCHAR:
             ret = handle_varchar_node_in_column_value(tmp_node, sql_field);
@@ -526,7 +561,7 @@ int ObProxyDMLStmt::handle_column_and_value(ParseNode* node)
     if (OB_SUCC(ret) && !is_skip_field) {
       int duplicate_column_idx = -1;
       for (int i = 0; i < field_results_->fields_.count(); i++) {
-        if (0 == sql_field.column_name_.get_string().case_compare(field_results_->fields_[i].column_name_.get_string())) {
+        if (0 == sql_field.column_name_.config_string_.case_compare(field_results_->fields_[i]->column_name_.config_string_)) {
           duplicate_column_idx = i;
           break;
         }
@@ -534,15 +569,26 @@ int ObProxyDMLStmt::handle_column_and_value(ParseNode* node)
       if (-1 != duplicate_column_idx) {
         for (int i = 0; OB_SUCC(ret) && i < sql_field.column_values_.count(); i++) {
           SqlColumnValue tmp_column_value = sql_field.column_values_[i];
-          if (OB_FAIL(field_results_->fields_.at(duplicate_column_idx).column_values_.push_back(tmp_column_value))) {
+          if (OB_FAIL(field_results_->fields_.at(duplicate_column_idx)->column_values_.push_back(tmp_column_value))) {
             LOG_WARN("push_back failed", K(ret), K(sql_string_));
           }
         }
-      } else if (OB_FAIL(field_results_->fields_.push_back(sql_field))) {
-        LOG_WARN("push_back failed", K(ret), K(sql_string_));
       } else {
-        ++field_results_->field_num_;
-        LOG_DEBUG("add sql_field", K(sql_field), K(field_results_->field_num_));
+        SqlField *tmp_field = NULL;
+        if (OB_ISNULL(tmp_field = op_alloc(SqlField))) {
+          ret = OB_ALLOCATE_MEMORY_FAILED;
+          LOG_WARN("fail to allocate memory for sqlfield", K(ret));
+        } else {
+          *tmp_field = sql_field;
+          if (OB_FAIL(field_results_->fields_.push_back(tmp_field))) {
+            tmp_field->reset();
+            tmp_field = NULL;
+            LOG_WARN("push_back failed", K(ret), K(sql_string_));
+          } else {
+            ++field_results_->field_num_;
+            LOG_DEBUG("add sql_field", KPC(tmp_field), K(field_results_->field_num_));
+          }
+        } 
       }
     }
   }
@@ -562,18 +608,16 @@ int ObProxyDMLStmt::handle_varchar_node_in_column_value(ParseNode* node, SqlFiel
     //there is implicit type conversion: const char* -> ObString
     sql_field.column_value_.set_value(node->str_value_);
     column_value.value_type_ = TOKEN_STR_VAL;
-    column_value.column_value_.set(node->str_value_);
-    sql_field.column_values_.push_back(column_value);
+    column_value.column_value_.set_value(node->str_value_);
+    ret = sql_field.column_values_.push_back(column_value);
   } else {
     tmp_varchar_node = NULL;
     for (i = 0; OB_SUCC(ret) && i < node->num_child_; i++) {
-      if (node->children_[i] == NULL) {
+      if ((node->children_[i] == NULL) || (node->children_[i]->type_ != T_VARCHAR)) {
         //do nothing
-      } else if (tmp_varchar_node != NULL) {
-        ret = OB_ERR_UNEXPECTED;
-        LOG_WARN("should null here", K(ret), K(node->str_value_), K(sql_string_));
       } else {
         tmp_varchar_node = node->children_[i];
+        break;
       }
     }
     if (tmp_varchar_node == NULL) {
@@ -584,8 +628,31 @@ int ObProxyDMLStmt::handle_varchar_node_in_column_value(ParseNode* node, SqlFiel
       sql_field.column_value_.set_value(tmp_varchar_node->str_value_);
       sql_field.value_type_ = TOKEN_STR_VAL;
       column_value.value_type_ = TOKEN_STR_VAL;
-      column_value.column_value_.set(tmp_varchar_node->str_value_);
-      sql_field.column_values_.push_back(column_value);
+      column_value.column_value_.set_value(tmp_varchar_node->str_value_);
+      if (OB_FAIL(sql_field.column_values_.push_back(column_value))) {
+        LOG_WARN("fail to push column_value", K(ret));
+      }
+
+      bool need_save = false;
+      ShardingPosType type = SHARDING_POS_NONE;
+      if (0 == sql_field.column_name_.config_string_.case_compare("SCHEMA_NAME")
+          || 0 == sql_field.column_name_.config_string_.case_compare("TABLE_SCHEMA")) {
+        need_save = true;
+        type = SHARDING_POS_DB;
+      } else if (0 == sql_field.column_name_.config_string_.case_compare("TABLE_NAME")) {
+        need_save = true;
+        type = SHARDING_POS_TABLE;
+      }
+
+      if (need_save) {
+        ObProxyDbTablePos db_table_pos;
+        db_table_pos.set_pos(tmp_varchar_node->token_off_);
+        db_table_pos.set_name(tmp_varchar_node->str_value_);
+        db_table_pos.set_type(type);
+        if (OB_FAIL(db_table_pos_array_.push_back(db_table_pos))) {
+          LOG_WARN("fail to push expr table pos", K(ret));
+        }
+      }
     }
   }
   return ret;
@@ -608,7 +675,7 @@ int ObProxyDMLStmt::handle_expr_list_node_in_column_value(ParseNode* node, SqlFi
         case T_INT:
         default:
           column_value.value_type_ = TOKEN_STR_VAL;
-          column_value.column_value_.set(tmp_node->str_value_);
+          column_value.column_value_.set_value(tmp_node->str_value_);
           if (OB_FAIL(sql_field.column_values_.push_back(column_value))) {
             LOG_WARN("push_back failed", K(i), K(sql_string_), K(ret));
           }
@@ -625,18 +692,19 @@ int ObProxyDMLStmt::handle_assign_list(ParseNode *node)
   for (int i = 0; OB_SUCC(ret) && i < node->num_child_; i++) {
     ParseNode *tmp_node = node->children_[i];
     if (NULL == tmp_node) {
-      continue;
-    }
-    switch (tmp_node->type_) {
-      case T_ASSIGN_ITEM:
-        if (OB_FAIL(handle_column_and_value(tmp_node))) {
-          LOG_WARN("handle op and failed", K(ret));
-        }
-        break;
-      default:
-        has_unsupport_expr_type_ = true;
-        LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
-        break;
+      //do nothing
+    } else {
+      switch (tmp_node->type_) {
+        case T_ASSIGN_ITEM:
+          if (OB_FAIL(handle_column_and_value(tmp_node))) {
+            LOG_WARN("handle op and failed", K(ret));
+          }
+          break;
+        default:
+          has_unsupport_expr_type_ = true;
+          LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
+          break;
+      }
     }
   }
   return ret;
@@ -686,11 +754,11 @@ int ObProxyDMLStmt::column_ref_to_expr(ParseNode* node, ObProxyExpr* &expr, ObPr
     if (OB_ISNULL(column_node)) {
       ret = OB_ERR_UNEXPECTED;
       LOG_WARN("T_COLUMN_REF unexpected column entry", K(ret));
-    } else if (T_IDENT != column_node->type_) {
+    } else if (T_IDENT != column_node->type_ && T_STAR != column_node->type_) {
       // now column_ref child should be T_IDENT
       has_unsupport_expr_type_ = true;
       LOG_WARN("T_COLUMN_REF unexpected column entry", "node_type", get_type_name(column_node->type_), K(ret));
-    } else {
+    } else if (T_IDENT == column_node->type_) {
       ObProxyExprColumn* expr_column = NULL;
       if (OB_FAIL(get_expr_by_type(expr, OB_PROXY_EXPR_TYPE_COLUMN))) {
         LOG_WARN("get_expr_by_type failed", K(ret), K(sql_string_));
@@ -698,14 +766,26 @@ int ObProxyDMLStmt::column_ref_to_expr(ParseNode* node, ObProxyExpr* &expr, ObPr
         ret = OB_ERR_UNEXPECTED;
         LOG_WARN("dynamic_cast failed", K(ret));
       } else {
-        expr_column->set_column_name(column_node->str_value_, column_node->token_len_);
+        expr_column->set_column_name(column_node->str_value_, static_cast<int32_t>(column_node->str_len_));
         if (OB_NOT_NULL(table_node)) {
-          expr_column->set_table_name(table_node->str_value_, table_node->token_len_);
+          expr_column->set_table_name(table_node->str_value_, static_cast<int32_t>(table_node->str_len_));
           if (NULL != expr_table) {
             expr_column->set_real_table_name(expr_table->get_table_name());
           }
         }
       }
+    } else if (T_STAR == column_node->type_) {
+      ObProxyExprStar* expr_star = NULL;
+      if (OB_FAIL(get_expr_by_type(expr, OB_PROXY_EXPR_TYPE_STAR))) {
+        LOG_WARN("get_expr_by_type failed", K(ret), K(sql_string_));
+      } else if (OB_ISNULL(expr_star = dynamic_cast<ObProxyExprStar*>(expr))) {
+        ret = OB_ERR_UNEXPECTED;
+        LOG_WARN("dynamic_cast failed", K(ret));
+      } else {
+        if (OB_NOT_NULL(table_node)) {
+          expr_star->set_table_name(table_node->str_value_, static_cast<int32_t>(table_node->str_len_));
+        }
+      }
     }
   }
 
@@ -729,47 +809,8 @@ int ObProxyDMLStmt::limit_to_sql_string(common::ObSqlString& sql_string)
   }
   return ret;
 }
-ObProxySelectStmt::ObProxySelectStmt(common::ObIAllocator& allocator) : ObProxyDMLStmt(allocator),
-                                                                        has_rollup_(false),
-                                                                        has_for_update_(false),
-                                                                        from_token_off_(-1)
-{
-
-}
 
-ObProxySelectStmt::~ObProxySelectStmt()
-{
-  for (int64_t i = 0; i < select_exprs_.count(); i++) {
-    ObProxyExpr *expr = select_exprs_.at(i);
-    expr->~ObProxyExpr();
-  }
-
-  for (int64_t i = 0; i < group_by_exprs_.count(); i++) {
-    ObProxyGroupItem *group_expr = group_by_exprs_.at(i);
-    group_expr->~ObProxyGroupItem();
-  }
-
-  for (int64_t i = 0; i < order_by_exprs_.count(); i++) {
-    ObProxyOrderItem *order_expr = order_by_exprs_.at(i);
-    order_expr->~ObProxyOrderItem();
-  }
-}
-
-int ObProxySelectStmt::handle_parse_result(const ParseResult &parse_result)
-{
-  int ret = OB_SUCCESS;
-  ParseNode* node = parse_result.result_tree_->children_[0];
-
-  if (OB_FAIL(do_handle_parse_result(node))) {
-    LOG_WARN("fail to do handle parse result", K(sql_string_), "node_type", get_type_name(node->type_), K(ret));
-  } else if (OB_FAIL(handle_comment_list(parse_result))) {
-    LOG_WARN("handle_comment_list failed", K(ret), K(sql_string_));
-  }
-
-  return ret;
-}
-
-int ObProxySelectStmt::do_handle_parse_result(ParseNode* node)
+int ObProxyDMLStmt::do_handle_parse_result(ParseNode* node)
 {
   int ret = OB_SUCCESS;
 
@@ -843,7 +884,7 @@ int ObProxySelectStmt::do_handle_parse_result(ParseNode* node)
   return ret;
 }
 
-int ObProxySelectStmt::handle_comment_list(const ParseResult &parse_result)
+int ObProxyDMLStmt::handle_comment_list(const ParseResult &parse_result)
 {
   int ret = OB_SUCCESS;
   for (int i = 0; OB_SUCC(ret) && i < parse_result.comment_cnt_; i++) {
@@ -857,7 +898,8 @@ int ObProxySelectStmt::handle_comment_list(const ParseResult &parse_result)
   }
   return ret;
 }
-int ObProxySelectStmt::comments_to_sql_string(common::ObSqlString& sql_string)
+
+int ObProxyDMLStmt::comments_to_sql_string(common::ObSqlString& sql_string)
 {
   int ret = OB_SUCCESS;
   for (int i = 0; OB_SUCC(ret) && i < comments_.count(); i++) {
@@ -868,13 +910,13 @@ int ObProxySelectStmt::comments_to_sql_string(common::ObSqlString& sql_string)
   return ret;
 }
 
-int ObProxySelectStmt::hint_exprs_to_sql_string(common::ObSqlString& sql_string)
+int ObProxyDMLStmt::hint_exprs_to_sql_string(common::ObSqlString& sql_string)
 {
   UNUSED(sql_string);
   int ret = OB_SUCCESS;
   return ret;
 }
-int ObProxySelectStmt::select_exprs_to_sql_string(common::ObSqlString& sql_string)
+int ObProxyDMLStmt::select_exprs_to_sql_string(common::ObSqlString& sql_string)
 {
   int ret = OB_SUCCESS;
   if (select_exprs_.count() < 1) {
@@ -894,14 +936,14 @@ int ObProxySelectStmt::select_exprs_to_sql_string(common::ObSqlString& sql_strin
   return ret;
 }
 
-int ObProxySelectStmt::table_exprs_to_sql_string(common::ObSqlString& sql_string)
+int ObProxyDMLStmt::table_exprs_to_sql_string(common::ObSqlString& sql_string)
 {
   UNUSED(sql_string);
   int ret = OB_SUCCESS;
   return ret;
 }
 
-int ObProxySelectStmt::group_by_exprs_to_sql_string(common::ObSqlString& sql_string)
+int ObProxyDMLStmt::group_by_exprs_to_sql_string(common::ObSqlString& sql_string)
 {
   int ret = OB_SUCCESS;
   if (group_by_exprs_.count() <= 0) {
@@ -927,7 +969,7 @@ int ObProxySelectStmt::group_by_exprs_to_sql_string(common::ObSqlString& sql_str
   return ret;
 }
 
-int ObProxySelectStmt::order_by_exprs_to_sql_string(common::ObSqlString& sql_string)
+int ObProxyDMLStmt::order_by_exprs_to_sql_string(common::ObSqlString& sql_string)
 {
   int ret = OB_SUCCESS;
   if (order_by_exprs_.count() <= 0) {
@@ -949,7 +991,7 @@ int ObProxySelectStmt::order_by_exprs_to_sql_string(common::ObSqlString& sql_str
 }
 
 //REFER:https://dev.mysql.com/doc/refman/8.0/en/select.html
-int ObProxySelectStmt::to_sql_string(common::ObSqlString& sql_string)
+int ObProxyDMLStmt::to_sql_string(common::ObSqlString& sql_string)
 {
   int ret = OB_SUCCESS;
   if (OB_FAIL(comments_to_sql_string(sql_string))) {
@@ -976,7 +1018,7 @@ int ObProxySelectStmt::to_sql_string(common::ObSqlString& sql_string)
   return ret;
 }
 
-int ObProxySelectStmt::handle_union_clause(ParseNode* node)
+int ObProxyDMLStmt::handle_union_clause(ParseNode* node)
 {
   int ret = OB_SUCCESS;
   ParseNode* tmp_node = NULL;
@@ -1005,7 +1047,7 @@ int ObProxySelectStmt::handle_union_clause(ParseNode* node)
   return ret;
 }
 
-int ObProxySelectStmt::handle_hint_clause(ParseNode* node)
+int ObProxyDMLStmt::handle_hint_clause(ParseNode* node)
 {
   int ret = OB_SUCCESS;
   ParseNode* tmp_node = NULL;
@@ -1031,7 +1073,7 @@ int ObProxySelectStmt::handle_hint_clause(ParseNode* node)
   return ret;
 }
 
-int ObProxySelectStmt::handle_limit_clause(ParseNode* node)
+int ObProxyDMLStmt::handle_limit_clause(ParseNode* node)
 {
   int ret = OB_SUCCESS;
   ParseNode* tmp_node = NULL;
@@ -1066,7 +1108,7 @@ int ObProxySelectStmt::handle_limit_clause(ParseNode* node)
   return ret;
 }
 
-int ObProxySelectStmt::handle_project_list(ParseNode* node)
+int ObProxyDMLStmt::handle_project_list(ParseNode* node)
 {
   int ret = OB_SUCCESS;
   ParseNode* tmp_node = NULL;
@@ -1098,7 +1140,7 @@ int ObProxySelectStmt::handle_project_list(ParseNode* node)
   return ret;
 }
 
-int ObProxySelectStmt::get_const_expr(ParseNode* node, ObProxyExpr* &expr)
+int ObProxyDMLStmt::get_const_expr(ParseNode* node, ObProxyExpr* &expr)
 {
   int ret = OB_SUCCESS;
   ObProxyExprConst* expr_const = NULL;
@@ -1122,7 +1164,7 @@ int ObProxySelectStmt::get_const_expr(ParseNode* node, ObProxyExpr* &expr)
         LOG_DEBUG("add int value", K(obj));
       }
     } else {
-      ObString var(node->token_len_, node->str_value_);
+      ObString var(static_cast<int32_t>(node->str_len_), node->str_value_);
       obj.set_varchar(var);
       expr_const->set_object(obj);
       LOG_DEBUG("add varchar value", K(obj));
@@ -1131,7 +1173,7 @@ int ObProxySelectStmt::get_const_expr(ParseNode* node, ObProxyExpr* &expr)
   return ret;
 }
 
-int ObProxySelectStmt::get_sharding_const_expr(ParseNode* node, ObProxyExpr* &expr)
+int ObProxyDMLStmt::get_sharding_const_expr(ParseNode* node, ObProxyExpr* &expr)
 {
   int ret = OB_SUCCESS;
   ObProxyExprShardingConst* expr_const = NULL;
@@ -1144,12 +1186,12 @@ int ObProxySelectStmt::get_sharding_const_expr(ParseNode* node, ObProxyExpr* &ex
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("dynamic_cast failed", K(ret));
   } else {
-    expr_const->set_expr_name(node->str_value_, node->token_len_);
+    expr_const->set_expr_name(node->str_value_, static_cast<int32_t>(node->str_len_));
   }
   return ret;
 }
 
-int ObProxySelectStmt::handle_table_and_db_in_hint(ParseNode* node)
+int ObProxyDMLStmt::handle_table_and_db_in_hint(ParseNode* node)
 {
   int ret = OB_SUCCESS;
 
@@ -1165,62 +1207,8 @@ int ObProxySelectStmt::handle_table_and_db_in_hint(ParseNode* node)
   return ret;
 }
 
-int ObProxySelectStmt::column_ref_to_expr(ParseNode* node, ObProxyExpr* &expr, ObProxyExprTable* &expr_table)
-{
-  int ret = OB_SUCCESS;
-
-  if (OB_T_COLUMN_REF_NUM_CHILD /* 3 */ != node->num_child_) {
-    ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("T_COLUMN_REF children node is not 3", "child num", node->num_child_, K(ret));
-  } else if (OB_FAIL(handle_table_and_db_node(node, expr_table))) {
-    LOG_WARN("fail to handle table and db node", K(ret));
-  }
-
-  if (OB_SUCC(ret)) {
-    ParseNode* table_node = node->children_[1];
-    ParseNode* column_node = node->children_[2];
-    if (OB_ISNULL(column_node)) {
-      ret = OB_ERR_UNEXPECTED;
-      LOG_WARN("T_COLUMN_REF unexpected column entry", K(ret));
-    } else if (T_IDENT != column_node->type_ && T_STAR != column_node->type_) {
-      // now column_ref child should be T_IDENT
-      has_unsupport_expr_type_ = true;
-      LOG_WARN("T_COLUMN_REF unexpected column entry", "node_type", get_type_name(column_node->type_), K(ret));
-    } else if (T_IDENT == column_node->type_) {
-      ObProxyExprColumn* expr_column = NULL;
-      if (OB_FAIL(get_expr_by_type(expr, OB_PROXY_EXPR_TYPE_COLUMN))) {
-        LOG_WARN("get_expr_by_type failed", K(ret), K(sql_string_));
-      } else if (OB_ISNULL(expr_column = dynamic_cast<ObProxyExprColumn*>(expr))) {
-        ret = OB_ERR_UNEXPECTED;
-        LOG_WARN("dynamic_cast failed", K(ret));
-      } else {
-        expr_column->set_column_name(column_node->str_value_, column_node->token_len_);
-        if (OB_NOT_NULL(table_node)) {
-          expr_column->set_table_name(table_node->str_value_, table_node->token_len_);
-          if (NULL != expr_table) {
-            expr_column->set_real_table_name(expr_table->get_table_name());
-          }
-        }
-      }
-    } else if (T_STAR == column_node->type_) {
-      ObProxyExprStar* expr_star = NULL;
-      if (OB_FAIL(get_expr_by_type(expr, OB_PROXY_EXPR_TYPE_STAR))) {
-        LOG_WARN("get_expr_by_type failed", K(ret), K(sql_string_));
-      } else if (OB_ISNULL(expr_star = dynamic_cast<ObProxyExprStar*>(expr))) {
-        ret = OB_ERR_UNEXPECTED;
-        LOG_WARN("dynamic_cast failed", K(ret));
-      } else {
-        if (OB_NOT_NULL(table_node)) {
-          expr_star->set_table_name(table_node->str_value_, table_node->token_len_);
-        }
-      }
-    }
-  }
-
-  return ret;
-}
 
-int ObProxySelectStmt::alias_node_to_expr(ParseNode* node, ObProxyExpr* &expr, ParseNode* string_node)
+int ObProxyDMLStmt::alias_node_to_expr(ParseNode* node, ObProxyExpr* &expr, ParseNode* string_node)
 {
   int ret = OB_SUCCESS;
   ParseNode* tmp_node = NULL;
@@ -1235,11 +1223,11 @@ int ObProxySelectStmt::alias_node_to_expr(ParseNode* node, ObProxyExpr* &expr, P
           if (OB_ISNULL(expr)) {
             ret = OB_ERR_UNEXPECTED;
             LOG_WARN("fail to get expr table", K(ret));
-          } else if (OB_UNLIKELY(NULL == tmp_node->str_value_ || 0 >= tmp_node->token_len_)) {
+          } else if (OB_UNLIKELY(NULL == tmp_node->str_value_ || 0 >= tmp_node->str_len_)) {
             ret = OB_ERR_UNEXPECTED;
-            LOG_WARN("alias token meet some wrong", "token len", tmp_node->token_len_, K(ret));
+            LOG_WARN("alias token meet some wrong", "str len", tmp_node->str_len_, K(ret));
           } else {
-            expr->set_alias_name(tmp_node->str_value_, tmp_node->token_len_);
+            expr->set_alias_name(tmp_node->str_value_, static_cast<int32_t>(tmp_node->str_len_));
           }
           break;
         default:
@@ -1252,7 +1240,7 @@ int ObProxySelectStmt::alias_node_to_expr(ParseNode* node, ObProxyExpr* &expr, P
   return ret;
 }
 
-int ObProxySelectStmt::func_node_to_expr(ParseNode* node, ObProxyExpr* &expr)
+int ObProxyDMLStmt::func_node_to_expr(ParseNode* node, ObProxyExpr* &expr)
 {
   int ret = OB_SUCCESS;
   ParseNode* tmp_node = NULL;
@@ -1300,12 +1288,12 @@ int ObProxySelectStmt::func_node_to_expr(ParseNode* node, ObProxyExpr* &expr)
   }
 
   if (OB_SUCC(ret)) {
-    func_expr->set_expr_name(node->str_value_, node->token_len_);
+    func_expr->set_expr_name(node->str_value_, static_cast<int32_t>(node->str_len_));
   }
 
   return ret;
 }
-int ObProxySelectStmt::check_node_has_agg(ParseNode* node)
+int ObProxyDMLStmt::check_node_has_agg(ParseNode* node)
 {
   int ret = OB_SUCCESS;
   ParseNode* tmp_node = NULL;
@@ -1338,7 +1326,7 @@ int ObProxySelectStmt::check_node_has_agg(ParseNode* node)
   return ret;
 }
 //we do not cover all sys func. if sys func do not have agg func, pass it to server as string
-int ObProxySelectStmt::func_sys_node_to_expr(ParseNode* node, ObProxyExpr* &expr,  ParseNode* string_node)
+int ObProxyDMLStmt::func_sys_node_to_expr(ParseNode* node, ObProxyExpr* &expr,  ParseNode* string_node)
 {
   int ret = OB_SUCCESS;
   if (OB_FAIL(check_node_has_agg(node))) {
@@ -1353,7 +1341,7 @@ int ObProxySelectStmt::func_sys_node_to_expr(ParseNode* node, ObProxyExpr* &expr
   return ret;
 }
 
-int ObProxySelectStmt::string_node_to_expr(ParseNode* node, ObProxyExpr* &expr,  ParseNode* string_node)
+int ObProxyDMLStmt::string_node_to_expr(ParseNode* node, ObProxyExpr* &expr,  ParseNode* string_node)
 {
   int ret = OB_SUCCESS;
   int i = 0;
@@ -1434,7 +1422,7 @@ int ObProxySelectStmt::string_node_to_expr(ParseNode* node, ObProxyExpr* &expr,
   }
   return ret;
 }
-int ObProxySelectStmt::project_string_to_expr(ParseNode* node, ObProxyExpr* &expr)
+int ObProxyDMLStmt::project_string_to_expr(ParseNode* node, ObProxyExpr* &expr)
 {
   int ret = OB_SUCCESS;
   ParseNode* tmp_node = NULL;
@@ -1452,56 +1440,8 @@ int ObProxySelectStmt::project_string_to_expr(ParseNode* node, ObProxyExpr* &exp
   return ret;
 }
 
-int ObProxySelectStmt::handle_table_node_to_expr(ParseNode* node)
-{
-  int ret = OB_SUCCESS;
-  ParseNode* tmp_node = NULL;
-  ObProxyExprTable* expr_table = NULL;
-  bool is_sub_query = false;
-  for (int i = 0; OB_SUCC(ret) && i < node->num_child_; i++) {
-    tmp_node = node->children_[i];
-    if (NULL == tmp_node) {
-      //do nothing
-    } else {
-      switch(tmp_node->type_) {
-        case T_RELATION_FACTOR:
-          if (OB_FAIL(get_table_and_db_expr(tmp_node, expr_table))) {
-            LOG_WARN("fail to get table expr", K(ret));
-          }
-          break;
-        case T_IDENT:
-          if (is_sub_query) {
-            // skip alias
-          } else if (OB_ISNULL(expr_table)) {
-            ret = OB_ERR_UNEXPECTED;
-            LOG_WARN("fail to get expr table", K(ret));
-          } else if (OB_UNLIKELY(NULL == tmp_node->str_value_ || 0 >= tmp_node->token_len_)) {
-            ret = OB_ERR_UNEXPECTED;
-            LOG_WARN("alias token meet some wrong", "token len", tmp_node->token_len_, K(ret));
-          } else {
-            ObString alias_table = ObString::make_string(tmp_node->str_value_);
-            if (OB_FAIL(alias_table_map_.set_refactored(alias_table, expr_table))) {
-              LOG_WARN("fail to add alias table set", K(alias_table), K(ret));
-            }
-          }
-          break;
-        case T_SELECT:
-          if (OB_FAIL(do_handle_parse_result(tmp_node))) {
-            LOG_WARN("fail to do handle parse result", "node_type", get_type_name(tmp_node->type_), K(ret));
-          } else {
-            is_sub_query = true;
-          }
-          break;
-        default:
-          has_unsupport_expr_type_ = true;
-          LOG_WARN("unsupport type", "node_type", get_type_name(node->type_),  K(node->str_value_));
-      }
-    }
-  }
-  return ret;
-}
 
-int ObProxySelectStmt::handle_sort_key_node(ParseNode* node, ObProxyExpr* &expr, const SortListType& sort_list_type)
+int ObProxyDMLStmt::handle_sort_key_node(ParseNode* node, ObProxyExpr* &expr, const SortListType& sort_list_type)
 {
   int ret = OB_SUCCESS;
   ParseNode* tmp_node = NULL;
@@ -1520,7 +1460,7 @@ int ObProxySelectStmt::handle_sort_key_node(ParseNode* node, ObProxyExpr* &expr,
         order_direction = NULLS_LAST_DESC;
         break;
       default:
-        if (OB_FAIL(string_node_to_expr(tmp_node, tmp_expr))) {
+        if (OB_FAIL(string_node_to_expr(tmp_node, tmp_expr, tmp_node))) {
           LOG_WARN("string_node_to_expr failed", K(ret), K(sql_string_));
         } else if (T_INT == tmp_node->type_) {
           ObProxyExprConst* expr_const = NULL;
@@ -1569,7 +1509,7 @@ int ObProxySelectStmt::handle_sort_key_node(ParseNode* node, ObProxyExpr* &expr,
   }
   return ret;
 }
-int ObProxySelectStmt::handle_sort_list_node(ParseNode* node, const SortListType& sort_list_type)
+int ObProxyDMLStmt::handle_sort_list_node(ParseNode* node, const SortListType& sort_list_type)
 {
   int ret = OB_SUCCESS;
   ParseNode* tmp_node = NULL;
@@ -1622,7 +1562,7 @@ int ObProxySelectStmt::handle_sort_list_node(ParseNode* node, const SortListType
   }
   return ret;
 }
-int ObProxySelectStmt::handle_with_rollup_in_groupby(ParseNode* node)
+int ObProxyDMLStmt::handle_with_rollup_in_groupby(ParseNode* node)
 {
   int ret = OB_SUCCESS;
   ParseNode* tmp_node = NULL;
@@ -1649,7 +1589,7 @@ int ObProxySelectStmt::handle_with_rollup_in_groupby(ParseNode* node)
   return ret;
 }
 
-int ObProxySelectStmt::handle_groupby_clause(ParseNode* node)
+int ObProxyDMLStmt::handle_groupby_clause(ParseNode* node)
 {
   int ret = OB_SUCCESS;
   ParseNode* tmp_node = NULL;
@@ -1668,7 +1608,7 @@ int ObProxySelectStmt::handle_groupby_clause(ParseNode* node)
   return ret;
 }
 
-int ObProxySelectStmt::handle_orderby_clause(ParseNode* node)
+int ObProxyDMLStmt::handle_orderby_clause(ParseNode* node)
 {
   int ret = OB_SUCCESS;
   ParseNode* tmp_node = NULL;
@@ -1687,6 +1627,20 @@ int ObProxySelectStmt::handle_orderby_clause(ParseNode* node)
   return ret;
 }
 
+int ObProxySelectStmt::handle_parse_result(const ParseResult &parse_result)
+{
+  int ret = OB_SUCCESS;
+  ParseNode* node = parse_result.result_tree_->children_[0];
+
+  if (OB_FAIL(do_handle_parse_result(node))) {
+    LOG_WARN("fail to do handle parse result", K(sql_string_), "node_type", get_type_name(node->type_), K(ret));
+  } else if (OB_FAIL(handle_comment_list(parse_result))) {
+    LOG_WARN("handle_comment_list failed", K(ret), K(sql_string_));
+  }
+
+  return ret;
+}
+
 int ObProxyInsertStmt::handle_parse_result(const ParseResult &parse_result)
 {
   int ret = OB_SUCCESS;
@@ -1698,28 +1652,37 @@ int ObProxyInsertStmt::handle_parse_result(const ParseResult &parse_result)
     for (int i = 0; OB_SUCC(ret) && i < node->num_child_; i++) {
       ParseNode* tmp_node = node->children_[i];
       if (NULL == tmp_node) {
-        continue;
-      }
-      switch (tmp_node->type_) {
-        case T_REPLACE:
-          stmt_type_ = OBPROXY_T_REPLACE;
-          break;
-        case T_SINGLE_TABLE_INSERT:
-          if (OB_FAIL(handle_single_table_insert(tmp_node))) {
-            LOG_WARN("handle single table insert failed", K(ret));
-          }
-          break;
-        case T_INSERT:
-          //nothing
-          break;
-        default:
-          has_unsupport_expr_type_ = true;
-          LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
-          break;
+        //do nothing
+      } else {
+        switch (tmp_node->type_) {
+          case T_REPLACE:
+            stmt_type_ = OBPROXY_T_REPLACE;
+            break;
+          case T_HINT_OPTION_LIST:
+            ret = handle_hint_clause(tmp_node);
+            break;
+          case T_SINGLE_TABLE_INSERT:
+            if (OB_FAIL(handle_single_table_insert(tmp_node))) {
+              LOG_WARN("handle single table insert failed", K(ret));
+            }
+            break;
+          case T_INSERT:
+            //nothing
+            break;
+          default:
+            has_unsupport_expr_type_ = true;
+            LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
+            break;
+        }
       }
     }
   }
 
+  if(OB_SUCC(ret)) {
+    if (OB_FAIL(handle_comment_list(parse_result))) {
+      LOG_WARN("handle_comment_list failed", K(ret), K(sql_string_));
+    }
+  }
   return ret;
 }
 
@@ -1729,27 +1692,33 @@ int ObProxyInsertStmt::handle_single_table_insert(ParseNode *node)
   for (int i = 0; OB_SUCC(ret) && i < node->num_child_; i++) {
     ParseNode* tmp_node = node->children_[i];
     if (NULL == tmp_node) {
-      continue;
-    }
-    switch (tmp_node->type_) {
-      case T_INSERT_INTO_CLAUSE:
-        if (OB_FAIL(handle_insert_into(tmp_node))) {
-          LOG_WARN("fail to handle insert into", K(ret));
-        }
-        break;
-      case T_VALUE_LIST:
-        if (OB_FAIL(handle_value_list(tmp_node))) {
-          LOG_WARN("fail to handle value list", K(ret));
-        }
-        break;
-      case T_ASSIGN_LIST:
-        if (OB_FAIL(handle_assign_list(tmp_node))) {
-          LOG_WARN("fail to handle assign list", K(ret));
-        }
-        break;
-      default:
-        has_unsupport_expr_type_ = true;
-        LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
+      ///do nothing
+    } else {
+      switch (tmp_node->type_) {
+        case T_INSERT_INTO_CLAUSE:
+          if (OB_FAIL(handle_insert_into(tmp_node))) {
+            LOG_WARN("fail to handle insert into", K(ret));
+          }
+          break;
+        case T_VALUE_LIST:
+          if (OB_FAIL(handle_value_list(tmp_node))) {
+            LOG_WARN("fail to handle value list", K(ret));
+          }
+          break;
+        case T_ASSIGN_LIST:
+          if (OB_FAIL(handle_assign_list(tmp_node))) {
+            LOG_WARN("fail to handle assign list", K(ret));
+          }
+          break;
+        case T_SELECT:
+          if (OB_FAIL(do_handle_parse_result(tmp_node))) {
+            LOG_WARN("fail to do handle parse result", "node_type", get_type_name(tmp_node->type_), K(ret));
+          }
+          break;
+        default:
+          has_unsupport_expr_type_ = true;
+          LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
+      }
     }
   }
 
@@ -1762,23 +1731,24 @@ int ObProxyInsertStmt::handle_insert_into(ParseNode *node)
   for (int i = 0; OB_SUCC(ret) && i < node->num_child_; i++) {
     ParseNode* tmp_node = node->children_[i];
     if (NULL == tmp_node) {
-      continue;
-    }
-    switch (tmp_node->type_) {
-      case T_ORG:
-        if (OB_FAIL(handle_table_node_to_expr(tmp_node))) {
-          LOG_WARN("handle org failed", K(ret));
-        }
-        break;
-      case T_COLUMN_LIST:
-        if (OB_FAIL(handle_column_list(tmp_node))) {
-          LOG_WARN("handle column list failed", K(ret));
-        }
-        break;
-      default:
-        has_unsupport_expr_type_ = true;
-        LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
-        break;
+      //do nothing
+    } else {
+      switch (tmp_node->type_) {
+        case T_ORG:
+          if (OB_FAIL(handle_table_node_to_expr(tmp_node))) {
+            LOG_WARN("handle org failed", K(ret));
+          }
+          break;
+        case T_COLUMN_LIST:
+          if (OB_FAIL(handle_column_list(tmp_node))) {
+            LOG_WARN("handle column list failed", K(ret));
+          }
+          break;
+        default:
+          has_unsupport_expr_type_ = true;
+          LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
+          break;
+      }
     }
   }
 
@@ -1791,13 +1761,7 @@ int ObProxyInsertStmt::handle_value_list(ParseNode *node)
   for (int i = 0; OB_SUCC(ret) && i < node->num_child_; i++) {
     ParseNode *tmp_node = node->children_[i];
     if (NULL == tmp_node) {
-      continue;
-    }
-
-    // The writing method of insert inserting multiple rows is not supported
-    if (node->num_child_ > 1) {
-      ret = OB_ERR_BATCH_INSERT_FOUND;
-      LOG_WARN("replace more than one row", K(ret));
+      //do nothing
     } else {
       switch (tmp_node->type_) {
         case T_VALUE_VECTOR:
@@ -1822,17 +1786,18 @@ int ObProxyInsertStmt::handle_column_list(ParseNode *node)
   for (int i = 0; OB_SUCC(ret) && i < node->num_child_; i++) {
     ParseNode *tmp_node = node->children_[i];
     if (NULL == tmp_node) {
-      continue;
-    }
-    switch (tmp_node->type_) {
-      case T_COLUMN_REF:
-        if (OB_FAIL(handle_column_ref_in_list(tmp_node))) {
-          LOG_WARN("handle column ref failed", K(ret));
-        }
-        break;
-      default:
-        has_unsupport_expr_type_ = true;
-        LOG_WARN("unknown ndoe type", K_(tmp_node->type), K(ret));
+      //do nothing
+    } else {
+      switch (tmp_node->type_) {
+        case T_COLUMN_REF:
+          if (OB_FAIL(handle_column_ref_in_list(tmp_node))) {
+            LOG_WARN("handle column ref failed", K(ret));
+          }
+          break;
+        default:
+          has_unsupport_expr_type_ = true;
+          LOG_WARN("unknown ndoe type", K_(tmp_node->type), K(ret));
+      }
     }
   }
   return ret;
@@ -1842,64 +1807,85 @@ int ObProxyInsertStmt::handle_value_vector(ParseNode *node)
 {
   int ret = OB_SUCCESS;
   if (OB_UNLIKELY(column_name_array_.empty())) {
-    ret = OB_ERR_UNEXPECTED;
+    ret = OB_EXPR_CALC_ERROR;
     LOG_WARN("need column name in value vector", K(ret));
   } else  if (OB_UNLIKELY(node->num_child_ != column_name_array_.count())){
-    ret = OB_ERR_PARSE_SQL;
+    ret = OB_ERR_PARSER_SYNTAX;
     LOG_WARN("the num of column name do not match value vector", K(ret));
   } else {
     bool is_skip_field = false;
     SqlColumnValue column_value;
     for (int i = 0; OB_SUCC(ret) && i < node->num_child_; i++) {
-      column_value.reset();
-      is_skip_field = false;
       ParseNode *tmp_node = node->children_[i];
+      SqlField *sql_field = NULL;
       if (NULL == tmp_node) {
-        continue;
-      }
-      SqlField sql_field;
-      sql_field.column_name_.set(column_name_array_.at(i));
-      switch (tmp_node->type_) {
-        case T_INT:
-        {
-          sql_field.value_type_ = TOKEN_INT_VAL;
-          sql_field.column_int_value_ = tmp_node->value_;
-          column_value.value_type_ = TOKEN_STR_VAL;
-          column_value.column_value_.set(tmp_node->str_value_);
-          sql_field.column_values_.push_back(column_value);
-          break;
-        }
-        case T_VARCHAR:
-        {
-          ret = handle_varchar_node_in_column_value(tmp_node, sql_field);
-          break;
-        }
-        default:
-          has_unsupport_expr_type_ = true;
-          is_skip_field = true;
-          LOG_WARN("unknown node type", "node type", tmp_node->type_, K(ret));
-          break;
-      }
-      if (OB_SUCC(ret) && !is_skip_field) {
-        int duplicate_column_idx = -1;
-        for (int i = 0; i < field_results_->fields_.count(); i++) {
-          if (0 == sql_field.column_name_.get_string().case_compare(field_results_->fields_[i].column_name_.get_string())) {
-            duplicate_column_idx = i;
+        // do nothing
+      } else if (OB_ISNULL(sql_field = op_alloc(SqlField))) {
+        ret = OB_ALLOCATE_MEMORY_FAILED;
+        LOG_WARN("fail to allocate memory for sqlfield", K(ret));
+      } else {
+        is_skip_field = false;
+        column_value.reset();
+        sql_field->column_name_.set_value(column_name_array_.at(i));
+        switch (tmp_node->type_) {
+          case T_INT:
+            {
+              sql_field->value_type_ = TOKEN_INT_VAL;
+              sql_field->column_int_value_ = tmp_node->value_;
+              column_value.value_type_ = TOKEN_STR_VAL;
+              column_value.column_value_.set_value(tmp_node->str_value_);
+              ret = sql_field->column_values_.push_back(column_value);
+              break;
+            }
+          case T_VARCHAR:
+            {
+              ret = handle_varchar_node_in_column_value(tmp_node, *sql_field);
+              break;
+            }
+          case T_OP_NEG:
+            {
+              ParseNode *child_node = tmp_node->children_[0];
+              if (child_node->type_ == T_INT) {
+                sql_field->value_type_ = TOKEN_INT_VAL;
+                sql_field->column_int_value_ = -1 * (child_node->value_);
+              } else {
+                ret = OB_ERR_UNEXPECTED;
+                LOG_WARN("unknown node type", K_(child_node->type), K(ret));
+              }
+              break;
+            }
+          default:
+            column_value.value_type_ = TOKEN_NONE;
+            ret = sql_field->column_values_.push_back(column_value);
+            has_unsupport_expr_type_ = true;
+            LOG_WARN("unknown node type", "node type", tmp_node->type_, K(ret));
             break;
-          }
         }
-        if (OB_UNLIKELY(-1 != duplicate_column_idx)) {
-          for (int i = 0; OB_SUCC(ret) && i < sql_field.column_values_.count(); i++) {
-            SqlColumnValue tmp_column_value = sql_field.column_values_[i];
-            if (OB_FAIL(field_results_->fields_.at(duplicate_column_idx).column_values_.push_back(tmp_column_value))) {
-              LOG_WARN("push_back failed", K(ret), K(sql_string_));
+        if (OB_SUCC(ret) && !is_skip_field) {
+          int duplicate_column_idx = -1;
+          for (int i = 0; i < field_results_->fields_.count(); i++) {
+            if (0 == sql_field->column_name_.config_string_.case_compare(field_results_->fields_[i]->column_name_.config_string_)) {
+              duplicate_column_idx = i;
+              break;
             }
           }
-        } else if (OB_FAIL(field_results_->fields_.push_back(sql_field))) {
-          LOG_WARN("push_back failed", K(ret), K(sql_string_));
-        } else {
-          ++field_results_->field_num_;
-          LOG_DEBUG("add sql_field", K(sql_field), K(field_results_->field_num_));
+          if (OB_UNLIKELY(-1 != duplicate_column_idx)) {
+            for (int i = 0; OB_SUCC(ret) && i < sql_field->column_values_.count(); i++) {
+              SqlColumnValue tmp_column_value = sql_field->column_values_[i];
+              if (OB_FAIL(field_results_->fields_.at(duplicate_column_idx)->column_values_.push_back(tmp_column_value))) {
+                LOG_WARN("push_back failed", K(ret), K(sql_string_));
+              }
+            }
+          } else if (OB_FAIL(field_results_->fields_.push_back(sql_field))) {
+            LOG_WARN("push_back failed", K(ret), K(sql_string_));
+          } else {
+            ++field_results_->field_num_;
+            LOG_DEBUG("add sql_field", KPC(sql_field), K(field_results_->field_num_));
+          }
+        }
+        if (OB_FAIL(ret) && NULL != sql_field) {
+          sql_field->reset();
+          sql_field = NULL;
         }
       }
     }
@@ -1926,23 +1912,27 @@ int ObProxyDeleteStmt::handle_parse_result(const ParseResult &parse_result)
     for (int i = 0; OB_SUCC(ret) && i < node->num_child_; i++) {
       ParseNode* tmp_node = node->children_[i];
       if (NULL == tmp_node) {
-        continue;
-      }
-      switch (tmp_node->type_) {
-        case T_DELETE_TABLE_NODE:
-          if (OB_FAIL(handle_delete_table_node(tmp_node))) {
-            LOG_WARN("handle delete table node failed", K(ret));
-          }
-          break;
-        case T_WHERE_CLAUSE:
-          if (OB_FAIL(handle_where_clause(tmp_node))) {
-            LOG_WARN("handle where clause failed", K(ret));
-          }
-          break;
-        default:
-          has_unsupport_expr_type_ = true;
-          LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
-          break;
+        //do nothing
+      } else {
+        switch (tmp_node->type_) {
+          case T_DELETE_TABLE_NODE:
+            if (OB_FAIL(handle_delete_table_node(tmp_node))) {
+              LOG_WARN("handle delete table node failed", K(ret));
+            }
+            break;
+          case T_HINT_OPTION_LIST:
+            ret = handle_hint_clause(tmp_node);
+            break;
+          case T_WHERE_CLAUSE:
+            if (OB_FAIL(handle_where_clause(tmp_node))) {
+              LOG_WARN("handle where clause failed", K(ret));
+            }
+            break;
+          default:
+            has_unsupport_expr_type_ = true;
+            LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
+            break;
+        }
       }
     }
   }
@@ -1956,17 +1946,18 @@ int ObProxyDeleteStmt::handle_delete_table_node(ParseNode *node)
   for (int i = 0; OB_SUCC(ret) && i < node->num_child_; i++) {
     ParseNode *tmp_node = node->children_[i];
     if (NULL == tmp_node) {
-      continue;
-    }
-    switch (tmp_node->type_) {
-      case T_TABLE_REFERENCES:
-        if (OB_FAIL(handle_table_references(tmp_node))) {
-          LOG_WARN("handle table references failed", K(ret));
-        }
-        break;
-      default:
-        has_unsupport_expr_type_ = true;
-        LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
+      //do nothing
+    } else {
+      switch (tmp_node->type_) {
+        case T_TABLE_REFERENCES:
+          if (OB_FAIL(handle_table_references(tmp_node))) {
+            LOG_WARN("handle table references failed", K(ret));
+          }
+          break;
+        default:
+          has_unsupport_expr_type_ = true;
+          LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
+      }
     }
   }
   return ret;
@@ -1984,28 +1975,32 @@ int ObProxyUpdateStmt::handle_parse_result(const ParseResult &parse_result)
     for (int i = 0; OB_SUCC(ret) && i < node->num_child_; i++) {
       ParseNode* tmp_node = node->children_[i];
       if (NULL == tmp_node) {
-        continue;
-      }
-      switch (tmp_node->type_) {
-        case T_TABLE_REFERENCES:
-          if (OB_FAIL(handle_table_references(tmp_node))) {
-            LOG_WARN("handle where clause failed", K(ret));
-          }
-          break;
-        case T_ASSIGN_LIST:
-          if (OB_FAIL(handle_assign_list(tmp_node))) {
-            LOG_WARN("handle where clause failed", K(ret));
-          }
-          break;
-        case T_WHERE_CLAUSE:
-          if (OB_FAIL(handle_where_clause(tmp_node))) {
-            LOG_WARN("handle where clause failed", K(ret));
-          }
-          break;
-        default:
-          has_unsupport_expr_type_ = true;
-          LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
-          break;
+        //do nothing
+      } else {
+        switch (tmp_node->type_) {
+          case T_TABLE_REFERENCES:
+            if (OB_FAIL(handle_table_references(tmp_node))) {
+              LOG_WARN("handle where clause failed", K(ret));
+            }
+            break;
+          case T_HINT_OPTION_LIST:
+            ret = handle_hint_clause(tmp_node);
+            break;
+          case T_ASSIGN_LIST:
+            if (OB_FAIL(handle_assign_list(tmp_node))) {
+              LOG_WARN("handle where clause failed", K(ret));
+            }
+            break;
+          case T_WHERE_CLAUSE:
+            if (OB_FAIL(handle_where_clause(tmp_node))) {
+              LOG_WARN("handle where clause failed", K(ret));
+            }
+            break;
+          default:
+            has_unsupport_expr_type_ = true;
+            LOG_WARN("unknown node type", K_(tmp_node->type), K(ret));
+            break;
+        }
       }
     }
   }
diff --git a/src/obproxy/obutils/ob_proxy_stmt.h b/src/obproxy/obutils/ob_proxy_stmt.h
index 7065401f..39942588 100644
--- a/src/obproxy/obutils/ob_proxy_stmt.h
+++ b/src/obproxy/obutils/ob_proxy_stmt.h
@@ -56,6 +56,39 @@ class ObProxyExprTablePos {
   ObProxyExprTable* table_expr_;
 };
 
+enum ShardingPosType {
+  SHARDING_POS_NONE = 0,
+  SHARDING_POS_DB,
+  SHARDING_POS_TABLE,
+};
+
+class ObProxyDbTablePos {
+public:
+  ObProxyDbTablePos() : pos_(-1), name_(), type_(SHARDING_POS_NONE) {}
+  virtual ~ObProxyDbTablePos() {}
+
+  void set_pos(const int32_t pos) { pos_ = pos; }
+  int32_t get_pos() { return pos_; }
+
+  void set_type(const ShardingPosType type) { type_ = type; }
+  ShardingPosType get_type() { return type_; }
+
+  void set_name(const ObString &name) { name_ = name; }
+  ObString &get_name() { return name_; }
+
+  bool operator<(ObProxyDbTablePos &db_table_pos)
+  {
+    return pos_ < db_table_pos.get_pos();
+  }
+
+  TO_STRING_KV(K_(pos), K_(name), K_(type));
+
+private:
+  int32_t pos_;
+  ObString name_;
+  ShardingPosType type_;
+};
+
 class ObProxyStmt {
 public:
   ObProxyStmt(common::ObIAllocator& allocator) : stmt_type_(OBPROXY_T_INVALID), allocator_(allocator) {}
@@ -71,11 +104,19 @@ class ObProxyStmt {
   common::ObString sql_string_;
 };
 
+enum SortListType {
+  SORT_LIST_NONE = 0,
+  SORT_LIST_IN_GROUP_BY,
+  SORT_LSIT_IN_ORDER_BY,
+  SORT_LIST_TYPE_MAX,
+};
+
 class ObProxyDMLStmt : public ObProxyStmt
 {
 public:
   typedef common::hash::ObHashMap<common::ObString, opsql::ObProxyExpr *, common::hash::NoPthreadDefendMode> ExprMap;
   typedef common::ObSEArray<ObProxyExprTablePos, 4> TablePosArray;
+  typedef common::ObSEArray<ObProxyDbTablePos, 4> DbTablePosArray;
 
 public:
   ObProxyDMLStmt(common::ObIAllocator& allocator);
@@ -96,6 +137,7 @@ class ObProxyDMLStmt : public ObProxyStmt
   bool has_unsupport_expr_type() const { return has_unsupport_expr_type_; }
   ExprMap& get_table_exprs_map() { return table_exprs_map_; }
   TablePosArray& get_table_pos_array() { return table_pos_array_; }
+  DbTablePosArray& get_db_table_pos_array() { return db_table_pos_array_; }
 
 protected:
   ObProxyExprType get_expr_type_by_node_type(const ObItemType& item_type);
@@ -103,7 +145,7 @@ class ObProxyDMLStmt : public ObProxyStmt
 
   //for from
   int handle_from_list(ParseNode* node);
-  virtual int handle_table_node_to_expr(ParseNode* node);
+  int handle_table_node_to_expr(ParseNode* node);
   int get_table_and_db_expr(ParseNode* node, ObProxyExprTable* &expr_table);
   int handle_table_and_db_node(ParseNode* node, ObProxyExprTable* &expr_table);
   //for from in delete and update
@@ -120,7 +162,7 @@ class ObProxyDMLStmt : public ObProxyStmt
   int handle_varchar_node_in_column_value(ParseNode* node, SqlField& sql_field);
   int handle_expr_list_node_in_column_value(ParseNode* node, SqlField& sql_field);
   int handle_column_ref_in_list(ParseNode *node);
-  virtual int column_ref_to_expr(ParseNode* node, ObProxyExpr* &expr, ObProxyExprTable* &expr_table);
+  int column_ref_to_expr(ParseNode* node, ObProxyExpr* &expr, ObProxyExprTable* &expr_table);
 
   int condition_exprs_to_sql_string(common::ObSqlString& sql_string);
   int limit_to_sql_string(common::ObSqlString& sql_string);
@@ -146,21 +188,10 @@ class ObProxyDMLStmt : public ObProxyStmt
   ExprMap table_exprs_map_;
   ExprMap alias_table_map_;
   common::ObSEArray<ObProxyExprTablePos, 4> table_pos_array_;
-};
-
-enum SortListType {
-  SORT_LIST_NONE = 0,
-  SORT_LIST_IN_GROUP_BY,
-  SORT_LSIT_IN_ORDER_BY,
-  SORT_LIST_TYPE_MAX,
-};
+  common::ObSEArray<ObProxyDbTablePos, 4> db_table_pos_array_;
 
-class ObProxySelectStmt : public ObProxyDMLStmt
-{
+/*for sub select*/
 public:
-  ObProxySelectStmt(common::ObIAllocator& allocator);
-  virtual ~ObProxySelectStmt();
-  virtual int handle_parse_result(const ParseResult &parse_result);
   int handle_project_list(ParseNode* node);
   int handle_project_string(ParseNode* node);
   int handle_hint_clause(ParseNode* node);
@@ -173,7 +204,7 @@ class ObProxySelectStmt : public ObProxyDMLStmt
   bool has_for_update() const { return has_for_update_; }
   int64_t get_from_token_off() { return from_token_off_; }
 
-private:
+protected:
   int project_string_to_expr(ParseNode* node, ObProxyExpr* &expr);
   int string_node_to_expr(ParseNode* node, ObProxyExpr* &expr,  ParseNode* string_node = NULL);
   int alias_node_to_expr(ParseNode* node, ObProxyExpr* &expr, ParseNode* string_node = NULL);
@@ -186,11 +217,9 @@ class ObProxySelectStmt : public ObProxyDMLStmt
   int max_node_to_expr(ParseNode* node, ObProxyExpr* &expr);
   int min_node_to_expr(ParseNode* node, ObProxyExpr* &expr);
 
-  int column_ref_to_expr(ParseNode* node, ObProxyExpr* &expr, ObProxyExprTable* &expr_table);
   int get_const_expr(ParseNode* node, ObProxyExpr* &expr);
   int get_sharding_const_expr(ParseNode* node, ObProxyExpr* &expr);
 
-  int handle_table_node_to_expr(ParseNode* node);
   int handle_table_and_db_in_hint(ParseNode* node);
 
   //for group by
@@ -198,7 +227,7 @@ class ObProxySelectStmt : public ObProxyDMLStmt
   int handle_sort_list_node(ParseNode* node, const SortListType& sort_list_type);
   int handle_sort_key_node(ParseNode* node, ObProxyExpr* &expr, const SortListType& sort_list_type);
 
-private:
+protected:
   int do_handle_parse_result(ParseNode* node);
   int comments_to_sql_string(common::ObSqlString& sql_string);
   int hint_exprs_to_sql_string(common::ObSqlString& sql_string);
@@ -206,16 +235,25 @@ class ObProxySelectStmt : public ObProxyDMLStmt
   int table_exprs_to_sql_string(common::ObSqlString& sql_string);
   int group_by_exprs_to_sql_string(common::ObSqlString& sql_string);
   int order_by_exprs_to_sql_string(common::ObSqlString& sql_string);
-private:
+
   int check_node_has_agg(ParseNode* node);
 public:
   common::ObSEArray<opsql::ObProxyExpr*, 4> select_exprs_;
   common::ObSEArray<opsql::ObProxyGroupItem*, 4> group_by_exprs_; //select groupby expression
   common::ObSEArray<opsql::ObProxyOrderItem*, 4> order_by_exprs_;
-private:
+protected:
   bool has_rollup_;
   bool has_for_update_;
   int64_t from_token_off_;
+  int64_t t_case_level_;
+};
+
+class ObProxySelectStmt : public ObProxyDMLStmt
+{
+public:
+  ObProxySelectStmt(common::ObIAllocator& allocator) : ObProxyDMLStmt(allocator) {}
+  virtual ~ObProxySelectStmt() {}
+  virtual int handle_parse_result(const ParseResult &parse_result);
 };
 
 class ObProxyInsertStmt : public ObProxyDMLStmt
diff --git a/src/obproxy/obutils/ob_proxy_string_utils.cpp b/src/obproxy/obutils/ob_proxy_string_utils.cpp
index 802876b9..c32caeb5 100644
--- a/src/obproxy/obutils/ob_proxy_string_utils.cpp
+++ b/src/obproxy/obutils/ob_proxy_string_utils.cpp
@@ -23,7 +23,7 @@ namespace obproxy
 {
 namespace obutils
 {
-ObProxyVariantString::ObProxyVariantString():data_(NULL), data_size_(0)
+ObProxyVariantString::ObProxyVariantString(): config_string_(), data_(NULL), data_size_(0)
 {
 
 }
@@ -47,7 +47,7 @@ ObProxyVariantString& ObProxyVariantString::operator=(const ObProxyVariantString
 {
   if (&vstr != this) {
     reset();
-    set_value(vstr.data_size_, vstr.data_);
+    set_value(vstr.config_string_.length(), vstr.config_string_.ptr());
   }
   return *this;
 }
@@ -92,6 +92,41 @@ bool ObProxyVariantString::set_value(const int32_t len, const char *value)
   return true;
 }
 
+bool ObProxyVariantString::set_value_with_quote(const common::ObString &value, const char quote)
+{
+  return set_value_with_quote(value.length(), value.ptr(), quote);
+}
+
+bool ObProxyVariantString::set_value_with_quote(const int32_t len, const char *value, const char quote)
+{
+  reset();
+  data_size_ = len + 3;
+  data_ = (char*)ob_malloc(data_size_);
+  if (OB_ISNULL(data_)) {
+    LOG_WARN("ob_malloc failed", K_(data_size));
+    return false;
+  } else {
+    data_[0] = quote;
+    MEMCPY(data_ + 1, value, len);
+    data_[len + 1] = quote;
+    data_[len + 2] = '\0';
+    config_string_.assign_ptr(data_, len + 2);
+  }
+
+  return true;
+}
+
+void ObProxyVariantString::set_integer(const int64_t other)
+{
+  char buf[1024];
+  const int32_t len = snprintf(buf, 1024, "%ld", other);
+  if (len <= 0 || len >= 1024) {
+    LOG_ERROR("snprintf failed", K(other));
+  } else {
+    set_value(len, buf);
+  }
+}
+
 } // end of namespace obutils
 } // end of namespace obproxy
 } // end of namespace oceanbase
diff --git a/src/obproxy/obutils/ob_proxy_string_utils.h b/src/obproxy/obutils/ob_proxy_string_utils.h
index 1e5ce7bd..8bd00432 100644
--- a/src/obproxy/obutils/ob_proxy_string_utils.h
+++ b/src/obproxy/obutils/ob_proxy_string_utils.h
@@ -44,7 +44,10 @@ class ObProxyVariantString
   bool init(common::ObMalloc* allocator, const int64_t mod_id);
   bool set_value(const common::ObString &value);
   bool set_value(const int32_t len, const char *value);
+  bool set_value_with_quote(const common::ObString &value, const char quote);
+  bool set_value_with_quote(const int32_t len, const char *value, const char quote);
   uint64_t hash(uint64_t seed = 0) const { return config_string_.hash(seed); }
+  void set_integer(const int64_t other);
   common::ObString config_string_;
   DECLARE_TO_STRING;
 private:
diff --git a/src/obproxy/obutils/ob_proxy_table_processor.h b/src/obproxy/obutils/ob_proxy_table_processor.h
index 84424575..f847b000 100644
--- a/src/obproxy/obutils/ob_proxy_table_processor.h
+++ b/src/obproxy/obutils/ob_proxy_table_processor.h
@@ -68,7 +68,7 @@ class ObProxyServerInfo
   DECLARE_TO_STRING;
 
 public:
-  char proxy_ip_[common::OB_IP_STR_BUFF];                       // ip primary key
+  char proxy_ip_[common::MAX_IP_ADDR_LENGTH];                       // ip primary key
   char regist_time_str_[common::OB_MAX_TIME_STR_LENGTH + 1];    // the time when one obproxy register to observer
   char app_name_[common::OB_MAX_APP_NAME_LENGTH + 1];           // application proxy used for
   char binary_version_[OB_MAX_PROXY_BINARY_VERSION_LEN + 1];    // man readable version
diff --git a/src/obproxy/obutils/ob_proxy_table_processor_utils.cpp b/src/obproxy/obutils/ob_proxy_table_processor_utils.cpp
index e1fdc15f..7e8600dc 100644
--- a/src/obproxy/obutils/ob_proxy_table_processor_utils.cpp
+++ b/src/obproxy/obutils/ob_proxy_table_processor_utils.cpp
@@ -453,7 +453,7 @@ int ObProxyTableProcessorUtils::fill_local_vt_cache(ObMysqlResultHandler &result
   int64_t tmp_real_str_len = 0;
   int64_t vid = 0;
   int64_t vport = 0;
-  char vip[OB_IP_STR_BUFF];
+  char vip[MAX_IP_ADDR_LENGTH];
   vip[0] = '\0';
   ObString tenant_name;
   ObString cluster_name;
@@ -472,7 +472,7 @@ int ObProxyTableProcessorUtils::fill_local_vt_cache(ObMysqlResultHandler &result
 
   while (OB_SUCC(ret) && OB_SUCC(result_handler.next())) {
     PROXY_EXTRACT_INT_FIELD_MYSQL(result_handler, "vid", vid, int64_t);
-    PROXY_EXTRACT_STRBUF_FIELD_MYSQL(result_handler, "vip", vip, OB_IP_STR_BUFF, tmp_real_str_len);
+    PROXY_EXTRACT_STRBUF_FIELD_MYSQL(result_handler, "vip", vip, MAX_IP_ADDR_LENGTH, tmp_real_str_len);
     PROXY_EXTRACT_INT_FIELD_MYSQL(result_handler, "vport", vport, int64_t);
     PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(result_handler, "tenant_name", tenant_name);
     PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(result_handler, "cluster_name", cluster_name);
@@ -506,8 +506,7 @@ int ObProxyTableProcessorUtils::fill_local_vt_cache(ObMysqlResultHandler &result
       if (OB_ISNULL(vip_tenant = op_alloc(ObVipTenant))) {
         ret = OB_ALLOCATE_MEMORY_FAILED;
         LOG_WARN("fail to alloc memory for ObVipTenant", K(ret));
-      } else if (FALSE_IT(vip_tenant->vip_addr_.set(ObAddr::convert_ipv4_addr(vip),
-          static_cast<int32_t>(vport), vid))) {
+      } else if (FALSE_IT(vip_tenant->vip_addr_.set(vip, static_cast<int32_t>(vport), vid))) {
         ret = OB_ERR_UNEXPECTED;
         LOG_WARN("fail to set vip_addr", K(vip), K(vport), K(vid), K(ret));
       } else if (OB_FAIL(vip_tenant->set_tenant_cluster(tenant_name, cluster_name))) {
@@ -522,16 +521,47 @@ int ObProxyTableProcessorUtils::fill_local_vt_cache(ObMysqlResultHandler &result
       } else if (OB_FAIL(cache_map.unique_set(vip_tenant))) {
         LOG_WARN("fail to insert one vip_tenant into cache_map", K(*vip_tenant), K(ret));
       } else {
-        LOG_DEBUG("succ to insert one vip_tenant into cache_map", K(*vip_tenant));
-        vip_tenant = NULL;
-        vid = 0;
-        vip[0] = '\0';
-        vport = 0;
-        tenant_name.reset();
-        cluster_name.reset();
-        info_config = NULL;
-        request_target_type = -1;
-        rw_type = -1;
+        char request_target_buf[32];
+        char rw_buf[32];
+        ObString request_target_string;
+        ObString rw_string;
+        int32_t request_len = snprintf(request_target_buf, sizeof(request_target_buf), "%ld", request_target_type);
+        int32_t rw_len = snprintf(rw_buf, sizeof(rw_buf), "%ld", rw_type);
+        request_target_string.assign_ptr(request_target_buf, request_len);
+        rw_string.assign_ptr(rw_buf, rw_len);
+        if (OB_FAIL(get_global_config_processor().store_proxy_config_with_level(
+          vid, vip, vport, "", "", "proxy_tenant_name", tenant_name, "LEVEL_VIP"))) {
+          LOG_WARN("store proxy_tenant_name failed", K(vid), K(vip), K(vport), K(tenant_name), K(cluster_name), K(ret));
+        } else if (OB_FAIL(get_global_config_processor().store_proxy_config_with_level(
+          vid, vip, vport, "", "", "rootservice_cluster_name", cluster_name, "LEVEL_VIP"))) {
+          LOG_WARN("store rootservice_cluster_name failed", K(vid), K(vip), K(vport), K(tenant_name), K(cluster_name), K(ret));
+        }
+        if (OB_SUCC(ret) && -1 != rw_type) {
+          if (OB_FAIL(get_global_config_processor().store_proxy_config_with_level(
+            vid, vip, vport, tenant_name, cluster_name, "obproxy_read_only", rw_string, "LEVEL_VIP"))) {
+            LOG_WARN("store obporxy_read_only failed", K(vid), K(vip), K(vport), K(tenant_name), K(cluster_name), K(rw_type), K(ret));
+          }
+        }
+        if (OB_SUCC(ret) && -1 != request_target_type) {
+          if (OB_FAIL(get_global_config_processor().store_proxy_config_with_level(
+            vid, vip, vport, tenant_name, cluster_name, "obproxy_read_consistency", request_target_string, "LEVEL_VIP"))) {
+            LOG_WARN("store obproxy_read_consistency failed", K(vid), K(vip), K(vport), K(tenant_name), K(cluster_name), K(request_target_type), K(ret));
+          }
+        }
+        if (OB_SUCC(ret)) {
+          LOG_DEBUG("succ to insert one vip_tenant into cache_map", K(*vip_tenant));
+          vip_tenant = NULL;
+          vid = 0;
+          vip[0] = '\0';
+          vport = 0;
+          tenant_name.reset();
+          cluster_name.reset();
+          info_config = NULL;
+          request_target_type = -1;
+          rw_type = -1;
+          request_target_string.reset();
+          rw_string.reset();
+        }
       }
     }//end if OB_SUCCESS
   }//end of while
@@ -554,23 +584,24 @@ int ObProxyTableProcessorUtils::fill_local_vt_cache(ObMysqlResultHandler &result
 int ObProxyTableProcessorUtils::get_proxy_local_addr(ObAddr &addr)
 {
   int ret = OB_SUCCESS;
-  char ip_str[OB_IP_STR_BUFF] = {'\0'};
+  char ip_str[MAX_IP_ADDR_LENGTH] = {'\0'};
   const ObHotUpgraderInfo &info = get_global_hot_upgrade_info();
   in_port_t port = 0;
   ObIpAddr inbound_ip;
 
   // get inbound ip and port
   if (OB_LIKELY(info.is_inherited_)) {
-    if (OB_UNLIKELY(NO_FD == info.fd_)) {
+    // Does not support ipv6 yet
+    if (OB_UNLIKELY(NO_FD == info.ipv4_fd_)) {
       ret = OB_ERR_UNEXPECTED;
       LOG_WARN("this process is inherited born, but listen fd is invalid",
-               "is_inherited", info.is_inherited_, "fd", info.fd_, K(ret));
+               "is_inherited", info.is_inherited_, "fd", info.ipv4_fd_, K(ret));
     } else {
       struct sockaddr sock_addr;
       int64_t namelen = sizeof(sock_addr);
       memset(&sock_addr, 0, namelen);
-      if (OB_FAIL(ObSocketManager::getsockname(info.fd_, &sock_addr , &namelen))) {
-        LOG_WARN("fail to get sock name", K(info.fd_), K(ret));
+      if (OB_FAIL(ObSocketManager::getsockname(info.ipv4_fd_, &sock_addr , &namelen))) {
+        LOG_WARN("fail to get sock name", K(info.ipv4_fd_), K(ret));
       } else {
         struct sockaddr_in *ain = (sockaddr_in *)&sock_addr;
         inbound_ip.assign(sock_addr);
@@ -590,7 +621,7 @@ int ObProxyTableProcessorUtils::get_proxy_local_addr(ObAddr &addr)
 
   // check valid
   if (OB_SUCC(ret)) {
-    inbound_ip.get_ip_str(ip_str, OB_IP_STR_BUFF);
+    inbound_ip.get_ip_str(ip_str, MAX_IP_ADDR_LENGTH);
     ObAddr any_addr(ObAddr::IPV4, INADDR_ANY_IP, port);
     ObAddr local_addr(ObAddr::IPV4, INADDR_LOOPBACK_IP, port);
     ObAddr inbound_addr(ObAddr::IPV4, ip_str, port);
@@ -600,15 +631,15 @@ int ObProxyTableProcessorUtils::get_proxy_local_addr(ObAddr &addr)
     // if inbound_addr == 0.0.0.0 or 127.0.0.1, we treat it as not user specified ip,
     // and in this case, we get one local net addr;
     if (inbound_addr == any_addr || inbound_addr == local_addr) {
-      memset(ip_str, 0, OB_IP_STR_BUFF);
-      if (OB_FAIL(get_one_local_addr(ip_str, OB_IP_STR_BUFF))) {
+      memset(ip_str, 0, MAX_IP_ADDR_LENGTH);
+      if (OB_FAIL(get_one_local_addr(ip_str, MAX_IP_ADDR_LENGTH))) {
         LOG_WARN("fail to get one local addr", K(ret));
       }
     }
   }
 
   if (OB_SUCC(ret)) {
-    addr.set_ipv4_addr(ip_str, port);
+    addr.set_ip_addr(ip_str, port);
     if (OB_UNLIKELY(!addr.is_valid())) {
       ret = OB_ERR_UNEXPECTED;
       LOG_WARN("invalid addr", K(addr), K(ret));
diff --git a/src/obproxy/obutils/ob_resource_pool_processor.cpp b/src/obproxy/obutils/ob_resource_pool_processor.cpp
index c83f71b6..7a343bfd 100644
--- a/src/obproxy/obutils/ob_resource_pool_processor.cpp
+++ b/src/obproxy/obutils/ob_resource_pool_processor.cpp
@@ -27,6 +27,7 @@
 #include "obutils/ob_async_common_task.h"
 #include "lib/container/ob_array_iterator.h"
 #include "lib/container/ob_se_array_iterator.h"
+#include "lib/encrypt/ob_encrypted_helper.h"
 
 using namespace obsys;
 using namespace oceanbase::common;
@@ -511,7 +512,7 @@ int ObServerStateInfoInitCont::finish_task(void *data)
     const int64_t MAX_DISPLAY_STATUS_LEN = 64;
     char display_status_str[MAX_DISPLAY_STATUS_LEN];
     ObServerStatus::DisplayStatus server_status = ObServerStatus::OB_DISPLAY_MAX;
-    char ip_str[OB_IP_STR_BUFF];
+    char ip_str[MAX_IP_ADDR_LENGTH];
     int64_t port = 0;
     int64_t tmp_real_str_len = 0;
     int64_t start_service_time = 0;
@@ -548,7 +549,7 @@ int ObServerStateInfoInitCont::finish_task(void *data)
 
       PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(result_handler, "zone", zone_name);
       PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(result_handler, "zone_status", zone_status);
-      PROXY_EXTRACT_STRBUF_FIELD_MYSQL(result_handler, "svr_ip", ip_str, OB_IP_STR_BUFF, tmp_real_str_len);
+      PROXY_EXTRACT_STRBUF_FIELD_MYSQL(result_handler, "svr_ip", ip_str, MAX_IP_ADDR_LENGTH, tmp_real_str_len);
       PROXY_EXTRACT_INT_FIELD_MYSQL(result_handler, "svr_port", port, int64_t);
       PROXY_EXTRACT_INT_FIELD_MYSQL(result_handler, "start_service_time", start_service_time, int64_t);
       PROXY_EXTRACT_INT_FIELD_MYSQL(result_handler, "stop_time", stop_time, int64_t);
@@ -1591,6 +1592,8 @@ int ObClusterResource::init(const common::ObString &cluster_name, int64_t cluste
   } else if (OB_FAIL(pending_list_.init("cr init pending list",
           reinterpret_cast<int64_t>(&(reinterpret_cast<ObClusterResourceCreateCont *> (0))->link_)))) {
     LOG_WARN("fail to init pending list", K(ret));
+  } else if (OB_FAIL(alive_addr_set_.create(4))) {
+    LOG_WARN("alive_addr_set create failed", K(ret));
   } else {
     is_inited_ = true;
     version_ = version;
@@ -1619,10 +1622,34 @@ int ObClusterResource::init_local_config(const ObResourcePoolConfig &config)
   int64_t timeout_ms = usec_to_msec(config.short_async_task_timeout_);
   const ObString user_name(ObProxyTableInfo::READ_ONLY_USERNAME);
   const ObString database(ObProxyTableInfo::READ_ONLY_DATABASE);
-  ObString password(get_global_proxy_config().observer_sys_password.str());
-  ObString password1(get_global_proxy_config().observer_sys_password1.str());
+  ObString cluster_name = cluster_info_key_.cluster_name_.config_string_;
+  ObConfigItem item;
+  char password[ENC_STRING_BUF_LEN];
+  char password1[ENC_STRING_BUF_LEN];
+  memset(password, 0, sizeof (password));
+  memset(password1, 0, sizeof (password1));
+
+  ObVipAddr addr;
+  if (OB_FAIL(get_global_config_processor().get_proxy_config(
+          addr, cluster_name, "", ObProxyTableInfo::OBSERVER_SYS_PASSWORD, item))) {
+    LOG_WARN("get observer_sys_password config failed", K(cluster_name), K(ret));
+  } else {
+    MEMCPY(password, item.str(), strlen(item.str()));
+  }
 
-  if (OB_FAIL(mysql_proxy_.init(timeout_ms, user_name, password, database, password1))) {
+  if (OB_SUCC(ret)) {
+    if (OB_FAIL(get_global_config_processor().get_proxy_config(
+            addr, cluster_name, "", ObProxyTableInfo::OBSERVER_SYS_PASSWORD1, item))) {
+      LOG_WARN("get observer_sys_password1 config failed", K(cluster_name), K(ret));
+    } else {
+      MEMCPY(password1, item.str(), strlen(item.str()));
+    }
+  }
+
+
+  if (OB_FAIL(ret)) {
+    // do nothing
+  } else if (OB_FAIL(mysql_proxy_.init(timeout_ms, user_name, password, database, cluster_name, password1))) {
     LOG_WARN("fail to init mysql proxy", K(ret));
   } else if (OB_FAIL(rebuild_mysql_client_pool(
              get_global_resource_pool_processor().get_default_cluster_resource()))) {
@@ -1956,7 +1983,7 @@ int ObClusterResource::update_location_tenant_info(ObSEArray<ObString, 4> &tenan
       }
     } // for
   } // if in wlock
-  
+
   return ret;
 }
 
@@ -2017,7 +2044,7 @@ uint64_t ObClusterResource::get_location_tenant_version(const ObString &tenant_n
 int ObClusterResource::get_location_tenant_info(const ObString &tenant_name, ObLocationTenantInfo *&info_out)
 {
   int ret = OB_SUCCESS;
-  
+
   if (!tenant_name.empty() && tenant_name != OB_SYS_TENANT_NAME) {
     ObLocationTenantInfo *info = NULL;
     DRWLock::RDLockGuard lock(location_tenant_info_lock_);
@@ -2057,52 +2084,16 @@ int ObLocationTenantInfo::resolve_location_tenant_info_primary_zone(ObString &pr
 
     // resolve to zone priority array
     // resolve to zone weight priority array
-    int i = 0;
-    int j = i;
-    int total_len = primary_zone_.length();
-    const char *ptr = primary_zone_.ptr();
-    ObSEArray<ObString, MAX_ZONE_NUM> tmp_pz_prio_array;
-    int8_t weight = 1;
-    
-    while (i < total_len && j < total_len) {
-      j++;
-      if (j >= total_len || ptr[j] == ';') {
-        if (j > i) {
-          ObString each_zone(j - i, ptr + i);
-          tmp_pz_prio_array.push_back(each_zone);
-        }
-
-        if (tmp_pz_prio_array.count() > 0) {
-          for (int64_t k = 0; k < tmp_pz_prio_array.count(); k++) {
-            primary_zone_prio_array_.push_back(tmp_pz_prio_array.at(k));
-            primary_zone_prio_weight_array_.push_back(weight);
-          }
-          tmp_pz_prio_array.reset();
-          weight++;
-        }
-        i = j + 1;
-        j = i;
-      } else if (ptr[j] == ',') {
-        if (j > i) {
-          ObString each_zone(j - i, ptr + i);
-          tmp_pz_prio_array.push_back(each_zone);
-        }
-        i = j + 1;
-        j = i;
-      } else {
-        // nothing
-      }
-    } // while
-
-
-    if (primary_zone_prio_array_.count() != primary_zone_prio_weight_array_.count()) {
+    if (OB_FAIL(split_weight_group(primary_zone_, primary_zone_prio_array_, primary_zone_prio_weight_array_))) {
+      LOG_WARN("fail to resolve primary zone", K(ret), K(primary_zone_));
+    } else if (primary_zone_prio_array_.count() != primary_zone_prio_weight_array_.count()) {
       ret = OB_ERR_UNEXPECTED;
-      LOG_WARN("unexpected array count check", K(tenant_name_), K(version_), K(primary_zone_prio_array_.count()), 
+      LOG_WARN("unexpected array count check", K(tenant_name_), K(version_), K(primary_zone_prio_array_.count()),
                                                K(primary_zone_prio_weight_array_.count()));
     } else {
       LOG_DEBUG("succ to resolve primary zone", KPC(this));
     }
-  }  
+  }
 
   return ret;
 }
@@ -2202,11 +2193,12 @@ int ObResourcePoolProcessor::init(ObProxyConfig &config, proxy::ObMysqlProxy &me
     // impossible
   } else if (OB_FAIL(default_cr_->init_local_config(config_))) {
     LOG_WARN("fail to build local default cluster resource", K(ret));
+  } else if (OB_FAIL(ip_set_.create(8))) {
+    LOG_WARN("ip_set create failed", K(ret));
   } else {
     default_cr_->inc_ref();
     default_sysvar_set_->inc_ref();
     meta_client_proxy_ = &meta_client_proxy;
-    ip_set_.create(8);
     is_inited_ = true;
   }
 
diff --git a/src/obproxy/obutils/ob_resource_pool_processor.h b/src/obproxy/obutils/ob_resource_pool_processor.h
index 6777e03f..b4847957 100644
--- a/src/obproxy/obutils/ob_resource_pool_processor.h
+++ b/src/obproxy/obutils/ob_resource_pool_processor.h
@@ -228,7 +228,7 @@ class ObClusterResource : public common::ObSharedRefCount
       cluster_info_key_(), last_access_time_ns_(0), deleting_completed_thread_num_(0),
       version_(0), fetch_rslist_task_count_(0), fetch_idc_list_task_count_(0),
       last_idc_list_refresh_time_ns_(0), last_rslist_refresh_time_ns_(0),
-      pending_list_(), cluster_version_(0), is_inited_(false), cr_state_(CR_BORN), sys_ldg_info_map_(),
+      pending_list_(), cluster_version_(0), alive_addr_set_(), is_inited_(false), cr_state_(CR_BORN), sys_ldg_info_map_(),
       sys_ldg_info_lock_(), location_tenant_info_lock_(), location_tenant_info_map_() {}
   virtual ~ObClusterResource() {}
   virtual void free();
@@ -358,6 +358,7 @@ class ObClusterResource : public common::ObSharedRefCount
   int64_t last_rslist_refresh_time_ns_;
   common::ObAtomicList pending_list_;
   int64_t cluster_version_;
+  common::hash::ObHashSet<net::ObIpEndpoint> alive_addr_set_;
   LINK(ObClusterResource, cr_link_);
 
 private:
diff --git a/src/obproxy/obutils/ob_server_state_processor.cpp b/src/obproxy/obutils/ob_server_state_processor.cpp
index d08665b6..346ade5f 100644
--- a/src/obproxy/obutils/ob_server_state_processor.cpp
+++ b/src/obproxy/obutils/ob_server_state_processor.cpp
@@ -91,6 +91,8 @@ class ObDetectOneServerStateCont : public obutils::ObAsyncCommonTask
 private:
   ObClusterResource *cluster_resource_;
   ObAddr addr_;
+  ObMysqlClient *mysql_client_;
+  ObMysqlProxy mysql_proxy_;
 
 private:
   DISALLOW_COPY_AND_ASSIGN(ObDetectOneServerStateCont);
@@ -606,7 +608,7 @@ int ObServerStateRefreshCont::handle_all_tenant(void *data)
         }
       }
     }
-    
+
     if (ret != OB_ITER_END) {
       // handle case of fail to access __all_tenant on alipay main site: do not exec error handling process
       if (ER_TABLEACCESS_DENIED_ERROR == resp->get_err_code()) {
@@ -623,7 +625,7 @@ int ObServerStateRefreshCont::handle_all_tenant(void *data)
       }
       ret = OB_SUCCESS;
     }
-    
+
     if (OB_SUCC(ret) && OB_FAIL(schedule_refresh_server_state())) {
       LOG_WARN("fail to schedule refresh server state", K(ret));
     }
@@ -1236,8 +1238,7 @@ int ObServerStateRefreshCont::do_update_server(const ObServerStateInfo &ss_info)
     }
   }
 
-  ObIpEndpoint ip;
-  ops_ip_copy(ip.sa_, ss_info.replica_.server_.get_ipv4(), static_cast<uint16_t>(ss_info.replica_.server_.get_port()));
+  ObIpEndpoint ip(ss_info.replica_.server_.get_sockaddr());
   if (!need_update && ObCongestionEntry::ACTIVE == ss_info.cgt_server_state_) {
     if (OB_HASH_EXIST == get_global_resource_pool_processor().ip_set_.exist_refactored(ip)) {
       need_update = true;
@@ -1504,8 +1505,7 @@ int ObServerStateRefreshCont::handle_deleted_server(ObIArray<ObServerStateInfo>
     }
     if (!found) {
       LOG_INFO("deleted server", "ss_info", last_ss_info);
-      ops_ip_copy(ip.sa_, last_ss_info.replica_.server_.get_ipv4(),
-                  static_cast<uint16_t>(last_ss_info.replica_.server_.get_port()));
+      ip.assign(last_ss_info.replica_.server_.get_sockaddr());
       int64_t cr_version = cluster_resource_->version_;
       if (OB_FAIL(congestion_manager_->update_server(ip, cr_version, ObCongestionEntry::DELETED,
           last_ss_info.zone_state_->zone_name_,
@@ -1666,7 +1666,7 @@ int ObServerStateRefreshUtils::get_server_state_info(
 {
   int ret = OB_SUCCESS;
 
-  char ip_str[OB_IP_STR_BUFF];
+  char ip_str[MAX_IP_ADDR_LENGTH];
   int64_t port = 0;
   ObServerStateInfo server_state;
   const int64_t MAX_DISPLAY_STATUS_LEN = 64;
@@ -1682,7 +1682,7 @@ int ObServerStateRefreshUtils::get_server_state_info(
     display_status_str[0] = '\0';
     zone_name[0] = '\0';
     PROXY_EXTRACT_STRBUF_FIELD_MYSQL(result_handler, "svr_ip", ip_str,
-                                     OB_IP_STR_BUFF, tmp_real_str_len);
+                                     MAX_IP_ADDR_LENGTH, tmp_real_str_len);
     PROXY_EXTRACT_INT_FIELD_MYSQL(result_handler, "svr_port", port, int64_t);
     PROXY_EXTRACT_STRBUF_FIELD_MYSQL(result_handler, "zone", zone_name,
                                      MAX_ZONE_LENGTH + 1, zone_name_len);
@@ -1921,7 +1921,7 @@ DEF_TO_STRING(ObDetectServerStateCont)
 int ObDetectServerStateCont::schedule_detect_server_state()
 {
   int ret = OB_SUCCESS;
-  bool enable_server_detect = (0 < get_global_proxy_config().server_detect_mode);
+  const int64_t server_detect_mode = get_global_proxy_config().server_detect_mode;
   if (OB_UNLIKELY(!is_inited_)) {
     ret = OB_NOT_INIT;
     LOG_WARN("not init", K_(is_inited), K(ret));
@@ -1931,7 +1931,7 @@ int ObDetectServerStateCont::schedule_detect_server_state()
   } else if (OB_UNLIKELY(!self_ethread().is_event_thread_type(ET_CALL))) {
     ret = OB_ERR_UNEXPECTED;
     LOG_ERROR("server state refresh cont must be scheduled in work thread", K(ret));
-  } else if (enable_server_detect) {
+  } else if (server_detect_mode > 0) {
     int64_t ss_version = cluster_resource_->server_state_version_;
     common::DRWLock &server_state_lock = cluster_resource_->get_server_state_lock(ss_version);
     server_state_lock.rdlock();
@@ -1942,11 +1942,14 @@ int ObDetectServerStateCont::schedule_detect_server_state()
 
     for (int i = 0; i < server_state_info.count(); i++) {
       ObServerStateSimpleInfo &info = server_state_info.at(i);
-      bool need_check = common::ObTimeUtility::current_time() - info.last_response_time_ >= 5 * 1000 * 1000;
-      int64_t cnt = info.request_sql_cnt_;
+      bool check_pass = true;
+      // Accurate detection method
+      if (1 == server_detect_mode) {
+        check_pass = (info.request_sql_cnt_ > 0);
+        LOG_DEBUG("check detect one server", K(server_detect_mode), K_(info.request_sql_cnt), K(check_pass));
+      }
 
-      LOG_DEBUG("check need schedule one server", K(info), K(need_check), K(cnt));
-      if ((cnt > 0 && need_check) || info.detect_fail_cnt_ > 0) {
+      if (check_pass || info.detect_fail_cnt_ > 0) {
         // There is no need to judge whether the push_back is successful here
         ObDetectOneServerStateCont *cont = NULL;
         if (OB_ISNULL(cont = op_alloc(ObDetectOneServerStateCont))) {
@@ -1960,13 +1963,11 @@ int ObDetectServerStateCont::schedule_detect_server_state()
         }
         LOG_DEBUG("schedule detect one server state", K(info), K(ss_version));
       } else {
-        struct sockaddr_in in;
-        in.sin_family = AF_INET;
-        in.sin_port = (htons)(static_cast<uint16_t>(info.addr_.get_port()));
-        in.sin_addr.s_addr = htonl(info.addr_.ip_.v4_);
-        ObIpEndpoint point(*reinterpret_cast<struct sockaddr*>(&in));
+        ObIpEndpoint point(info.addr_.get_sockaddr());
         if (OB_HASH_EXIST == get_global_resource_pool_processor().ip_set_.exist_refactored(point)) {
           addr_set.set_refactored(info.addr_);
+        } else if (OB_HASH_EXIST == cluster_resource_->alive_addr_set_.exist_refactored(point)) {
+          addr_set.set_refactored(info.addr_);
         }
       }
     }
@@ -1997,11 +1998,11 @@ int ObDetectServerStateCont::schedule_detect_server_state()
               HRTIME_USECONDS(server_detect_state_interval_us_), DETECT_SERVER_STATE_EVENT))) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("fail to schedule refresh server state", K_(server_detect_state_interval_us),
-              K(enable_server_detect), KPC_(cluster_resource), K(ret));
+              K(server_detect_mode), KPC_(cluster_resource), K(ret));
   }
 
   LOG_DEBUG("schedule detect server state", K_(server_detect_state_interval_us),
-             K(enable_server_detect), KPC_(cluster_resource), K(ret));
+             K(server_detect_mode), KPC_(cluster_resource), K(ret));
 
   return ret;
 }
@@ -2096,7 +2097,8 @@ int ObDetectServerStateCont::set_detect_server_state_interval(const int64_t refr
 
 ObDetectOneServerStateCont::ObDetectOneServerStateCont()
       : ObAsyncCommonTask(NULL, "detect_server_state_task"),
-        cluster_resource_(NULL), addr_()
+        cluster_resource_(NULL), addr_(), mysql_client_(NULL),
+        mysql_proxy_()
 {
   SET_HANDLER(&ObDetectOneServerStateCont::main_handler);
 }
@@ -2104,13 +2106,33 @@ ObDetectOneServerStateCont::ObDetectOneServerStateCont()
 int ObDetectOneServerStateCont::init(ObClusterResource *cluster_resource, ObAddr addr)
 {
   int ret = OB_SUCCESS;
+  const int64_t timeout_ms = usec_to_msec(get_global_proxy_config().detect_server_timeout);
   if (OB_UNLIKELY(NULL == cluster_resource || !addr.is_valid())) {
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("init obdetectserverstate cont failed", K(cluster_resource), K(ret));
+    // The detection only depends on whether OBServer returns OB_MYSQL_COM_HANDSHAKE,
+    // and will not log in. The following parameters will not be actually used,
+    // only for the initialization of class objects
+    // user_name : detect_username
+    // password : detect_password
+    // database : detect_database
+  } else if (OB_FAIL(mysql_proxy_.init(timeout_ms, ObProxyTableInfo::DETECT_USERNAME_USER, "detect_password", "detect_database"))) {
+    LOG_WARN("fail to init mysql proxy", K(ret));
   } else {
     cluster_resource->inc_ref();
     cluster_resource_ = cluster_resource;
     addr_ = addr;
+    if (OB_ISNULL(mysql_client_ = op_alloc(ObMysqlClient))) {
+      ret = OB_ALLOCATE_MEMORY_FAILED;
+      LOG_WARN("fail to allocate ObMysqlClient", K(ret));
+    } else if (OB_FAIL(mysql_client_->init_detect_client(cluster_resource_))) {
+      LOG_WARN("fail to init detect client", K(ret));
+    }
+
+    if (OB_FAIL(ret) && (NULL != mysql_client_)) {
+      mysql_client_->kill_this();
+      mysql_client_ = NULL;
+    }
   }
 
   return ret;
@@ -2124,6 +2146,10 @@ void ObDetectOneServerStateCont::kill_this()
     cluster_resource_->dec_ref();
     cluster_resource_ = NULL;
   }
+  if (OB_LIKELY(NULL != mysql_client_)) {
+    mysql_client_->kill_this();
+    mysql_client_ = NULL;
+  }
   if (OB_FAIL(cancel_timeout_action())) {
     LOG_WARN("fail to cancel timeout action", K(ret));
   }
@@ -2174,14 +2200,15 @@ int ObDetectOneServerStateCont::main_handler(int event, void *data)
 int ObDetectOneServerStateCont::detect_server_state_by_sql()
 {
   int ret = OB_SUCCESS;
-  ObMysqlProxy *mysql_proxy = &cluster_resource_->mysql_proxy_;
-  char sql[] = "select 'detect server alive' from dual";
+  char sql[] = "select 'detect server' from dual";
   LOG_DEBUG("begin to detect server", K_(addr));
   ObMysqlRequestParam request_param(sql);
   request_param.set_target_addr(addr_);
+  request_param.set_mysql_client(mysql_client_);
+  request_param.set_is_detect_client(true);
   const int64_t timeout_ms = usec_to_msec(get_global_proxy_config().detect_server_timeout);
-  if (OB_FAIL(mysql_proxy->async_read(this, request_param, pending_action_, timeout_ms))) {
-    LOG_WARN("fail to nonblock read", K(sql), K(ret));
+  if (OB_FAIL(mysql_proxy_.async_read(this, request_param, pending_action_, timeout_ms))) {
+    LOG_WARN("fail to async read", K(ret));
   }
 
   return ret;
@@ -2199,24 +2226,26 @@ int ObDetectOneServerStateCont::handle_client_resp(void *data)
   bool found = false;
   for (int i = 0; !found && i < server_state_info.count(); i++) {
     ObServerStateSimpleInfo &info = server_state_info.at(i);
-    ObIpEndpoint ip;
+    ObIpEndpoint ip(info.addr_.get_sockaddr());
     ObCongestionEntry::ObServerState state = ObCongestionEntry::ObServerState::ACTIVE;
-    ops_ip_copy(ip.sa_, info.addr_.get_ipv4(), static_cast<uint16_t>(info.addr_.get_port()));
     if (addr_ == info.addr_) {
       if (NULL != data) {
         (void)ATOMIC_SET(&info.detect_fail_cnt_, 0);
         state = ObCongestionEntry::ObServerState::DETECT_ALIVE;
-        LOG_DEBUG("succe to get resp from server", K(info));
+        cluster_resource_->alive_addr_set_.erase_refactored(ip);
+        get_global_resource_pool_processor().ip_set_.erase_refactored(ip);
+        LOG_DEBUG("detect server alive", K(info));
       } else {
         int64_t fail_cnt = ATOMIC_AAF(&info.detect_fail_cnt_, 1);
-        LOG_WARN("detect server alive failed", K(info));
+        LOG_WARN("detect server dead", K(info));
         if (fail_cnt >= get_global_proxy_config().server_detect_fail_threshold) {
           // If the detection failure exceeds the number of retries, the server needs to be added to the blacklist
           (void)ATOMIC_SET(&info.detect_fail_cnt_, 0);
           state = ObCongestionEntry::ObServerState::DETECT_DEAD;
+          get_global_resource_pool_processor().ip_set_.set_refactored(ip);
         }
       }
-      
+
       if (ObCongestionEntry::ObServerState::DETECT_DEAD == state
           || ObCongestionEntry::ObServerState::DETECT_ALIVE == state) {
         ObCongestionManager &congestion_manager = cluster_resource_->congestion_manager_;
@@ -2232,9 +2261,9 @@ int ObDetectOneServerStateCont::handle_client_resp(void *data)
   }
 
   if (!found) {
-    ObIpEndpoint ip;
-    ops_ip_copy(ip.sa_, addr_.get_ipv4(), static_cast<uint16_t>(addr_.get_port()));
+    ObIpEndpoint ip(addr_.get_sockaddr());
     get_global_resource_pool_processor().ip_set_.erase_refactored(ip);
+    cluster_resource_->alive_addr_set_.erase_refactored(ip);
     LOG_WARN("server not in cluster", K(ip), KPC_(cluster_resource));
   }
   server_state_lock2.rdunlock();
diff --git a/src/obproxy/obutils/ob_state_info.h b/src/obproxy/obutils/ob_state_info.h
index f6d450e8..f039bd8d 100644
--- a/src/obproxy/obutils/ob_state_info.h
+++ b/src/obproxy/obutils/ob_state_info.h
@@ -286,7 +286,7 @@ inline int ObServerStateInfo::add_addr(const char *ip, const int64_t port)
 inline ObServerStateSimpleInfo &ObServerStateSimpleInfo::operator=(const ObServerStateSimpleInfo &other)
 {
   if (this != &other) {
-    addr_.set_ipv4_addr(other.addr_.get_ipv4(), other.addr_.get_port());
+    addr_ = other.addr_;
     is_merging_ = other.is_merging_;
     is_force_congested_ = other.is_force_congested_;
     zone_type_ = other.zone_type_;
@@ -329,8 +329,8 @@ inline int ObServerStateSimpleInfo::set_addr(const common::ObAddr &addr)
   if (OB_UNLIKELY(!addr.is_valid())) {
     ret = common::OB_INVALID_ARGUMENT;
     PROXY_LOG(WARN, "invalid argument", K(addr), K(ret));
-  } else if (OB_UNLIKELY(!addr_.set_ipv4_addr(addr.get_ipv4(), addr.get_port()))) {
-    ret = common::OB_INVALID_ARGUMENT;
+  } else {
+    addr_ = addr;
   }
   return ret;
 }
@@ -338,7 +338,7 @@ inline int ObServerStateSimpleInfo::set_addr(const common::ObAddr &addr)
 inline int ObServerStateSimpleInfo::set_addr(const char *ip, const int64_t port)
 {
   int ret = common::OB_SUCCESS;
-  if (OB_UNLIKELY(!addr_.set_ipv4_addr(ip, static_cast<int32_t>(port)))) {
+  if (OB_UNLIKELY(!addr_.set_ip_addr(ip, static_cast<int32_t>(port)))) {
     ret = common::OB_INVALID_ARGUMENT;
   }
   return ret;
diff --git a/src/obproxy/obutils/ob_vip_tenant_cache.cpp b/src/obproxy/obutils/ob_vip_tenant_cache.cpp
index 0d3a41d5..51b27f90 100644
--- a/src/obproxy/obutils/ob_vip_tenant_cache.cpp
+++ b/src/obproxy/obutils/ob_vip_tenant_cache.cpp
@@ -23,7 +23,19 @@ namespace obproxy
 namespace obutils
 {
 
-void ObVipAddr::set(const int32_t ip, const int32_t port, const int64_t vid)
+void ObVipAddr::set(const char* ip, const int32_t port, const int64_t vid)
+{
+  if (NULL == ip || 0 == strcasecmp(ip, "") || port <= 0) {
+    addr_.reset();
+  } else if (OB_UNLIKELY(!addr_.set_ip_addr(ip, port))) {
+    LOG_WARN("fail to set_ip_addr", K(ip), K(port), K(addr_));
+    addr_.reset();
+  } else {
+    vid_ = vid;
+  }
+}
+
+void ObVipAddr::set_ipv4(int32_t ip, const int32_t port, const int64_t vid)
 {
   if (OB_UNLIKELY(!addr_.set_ipv4_addr(ip, port))) {
     LOG_WARN("fail to set_ipv4_addr", K(ip), K(port), K(addr_));
@@ -33,6 +45,12 @@ void ObVipAddr::set(const int32_t ip, const int32_t port, const int64_t vid)
   }
 }
 
+void ObVipAddr::set(const struct sockaddr &addr, const int64_t vid)
+{
+  addr_.set_sockaddr(addr);
+  vid_ = vid;
+}
+
 int ObVipTenant::set_tenant_cluster(const ObString &tenant_name, const ObString &cluster_name)
 {
   int ret = OB_SUCCESS;
diff --git a/src/obproxy/obutils/ob_vip_tenant_cache.h b/src/obproxy/obutils/ob_vip_tenant_cache.h
index 487c6b0a..95c2aefa 100644
--- a/src/obproxy/obutils/ob_vip_tenant_cache.h
+++ b/src/obproxy/obutils/ob_vip_tenant_cache.h
@@ -24,6 +24,19 @@ namespace obproxy
 namespace obutils
 {
 
+enum ObVipTenantRequestType
+{
+  InvalidRequestType = -1,
+  RequestLeader,
+  RequestFollower,
+};
+enum ObVipTenantRWType
+{
+  InvalidRWType = -1,
+  ReadOnly,
+  ReadWrite,
+};
+
 struct ObVipAddr
 {
 public:
@@ -33,7 +46,9 @@ struct ObVipAddr
   bool is_valid() const { return (addr_.is_valid() && vid_ >= 0); }
   void reset() { vid_ = -1; addr_.reset(); }
   bool operator==(const ObVipAddr &vip_addr) const { return (vip_addr.vid_ == vid_ && vip_addr.addr_ == addr_); }
-  void set(const int32_t ip, const int32_t port, const int64_t vid);
+  void set(const char* ip, const int32_t port, const int64_t vid);
+  void set_ipv4(int32_t ip, const int32_t port, const int64_t vid);
+  void set(const struct sockaddr &addr, const int64_t vid);
   TO_STRING_KV(K_(addr), K_(vid));
 
 public:
@@ -43,20 +58,6 @@ struct ObVipAddr
 
 struct ObVipTenant
 {
-private:
-  enum ObVipTenantRequestType
-  {
-    InvalidRequestType = -1,
-    RequestLeader,
-    RequestFollower,
-  };
-  enum ObVipTenantRWType
-  {
-    InvalidRWType = -1,
-    ReadOnly,
-    ReadWrite,
-  };
-
 public:
   ObVipTenant() : vip_addr_(), tenant_name_(), cluster_name_(),
             request_target_type_(InvalidRequestType), rw_type_(InvalidRWType)
diff --git a/src/obproxy/omt/ob_conn_table_processor.cpp b/src/obproxy/omt/ob_conn_table_processor.cpp
index bf49a325..73bb19ee 100644
--- a/src/obproxy/omt/ob_conn_table_processor.cpp
+++ b/src/obproxy/omt/ob_conn_table_processor.cpp
@@ -49,7 +49,7 @@ using namespace oceanbase::obproxy::obutils;
 using namespace oceanbase::json;
 
 extern int build_tenant_cluster_vip_name(const ObString &tenant_name, const ObString &cluster_name, const ObString &vip_name,
-    ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + OB_IP_STR_BUFF> &key_string);
+    ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + MAX_IP_ADDR_LENGTH> &key_string);
 
 int ObConnTableProcessor::commit(bool is_success)
 {
@@ -111,7 +111,7 @@ int ObConnTableProcessor::inc_conn(ObString& cluster_name, ObString& tenant_name
   int ret = OB_SUCCESS;
   ObString key_name;
   ObUsedConn* used_conn = NULL;
-  common::ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::OB_IP_STR_BUFF> key_string;
+  common::ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::MAX_IP_ADDR_LENGTH> key_string;
   if (OB_FAIL(build_tenant_cluster_vip_name(tenant_name, cluster_name, ip_name, key_string))) {
     LOG_WARN("build tenant cluser vip name failed", K(tenant_name), K(cluster_name), K(ip_name), K(ret));
   } else {
@@ -131,7 +131,7 @@ void ObConnTableProcessor::dec_conn(
   int ret = OB_SUCCESS;
   ObUsedConn* used_conn = NULL;
   int64_t cur_used_connections = 0;
-  common::ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::OB_IP_STR_BUFF> key_string;
+  common::ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::MAX_IP_ADDR_LENGTH> key_string;
 
   if (OB_FAIL(build_tenant_cluster_vip_name(tenant_name, cluster_name, ip_name, key_string))) {
     LOG_WARN("build tenant cluster vip name failed", K(ret), K(tenant_name), K(cluster_name), K(ip_name));
@@ -161,7 +161,7 @@ int ObConnTableProcessor::get_vt_conn_object(
 {
   int ret = OB_SUCCESS;
 
-  common::ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::OB_IP_STR_BUFF> key_string;
+  common::ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::MAX_IP_ADDR_LENGTH> key_string;
   if (OB_FAIL(build_tenant_cluster_vip_name(tenant_name, cluster_name, vip_name, key_string))) {
     LOG_WARN("build tenant cluser vip name failed", K(ret), K(tenant_name), K(cluster_name), K(vip_name));
   } else {
@@ -193,7 +193,7 @@ int ObConnTableProcessor::alloc_and_init_vt_conn(
   } else if (OB_ISNULL(tmp_vt_conn = op_alloc(ObVipTenantConn))) {
     ret = OB_ALLOCATE_MEMORY_FAILED;
     LOG_WARN("fail to alloc memory for ObVipTenantConn", K(ret));
-  } else if (OB_FAIL(tmp_vt_conn->set(cluster_name, tenant_name, vip_name, max_connections))) {    
+  } else if (OB_FAIL(tmp_vt_conn->set(cluster_name, tenant_name, vip_name, max_connections))) {
     LOG_WARN("fail to set vip tenant connect info", K(ret));
   } else {
     vt_conn = tmp_vt_conn;
@@ -211,11 +211,11 @@ int ObConnTableProcessor::alloc_and_init_vt_conn(
 // local vip json format:
 //[
 //  {
-//    "vip" : "127.0.0.1", 
+//    "vip" : "127.0.0.1",
 //    "value" : "1000"
 //  },
 //  {
-//    "vip" : "0.0.0.1", 
+//    "vip" : "0.0.0.1",
 //    "value" : "2000"
 //  }
 //]
@@ -328,7 +328,7 @@ int ObConnTableProcessor::conn_handle_replace_config(
   return ret;
 }
 
-int ObConnTableProcessor::conn_handle_delete_config(ObString& cluster_name, ObString& tenant_name) 
+int ObConnTableProcessor::conn_handle_delete_config(ObString& cluster_name, ObString& tenant_name)
 {
   int ret = OB_SUCCESS;
 
diff --git a/src/obproxy/omt/ob_cpu_table_processor.cpp b/src/obproxy/omt/ob_cpu_table_processor.cpp
index 2e018203..dc9638e0 100644
--- a/src/obproxy/omt/ob_cpu_table_processor.cpp
+++ b/src/obproxy/omt/ob_cpu_table_processor.cpp
@@ -51,7 +51,7 @@ using namespace oceanbase::obproxy::obutils;
 using namespace oceanbase::json;
 
 extern int build_tenant_cluster_vip_name(const ObString &tenant_name, const ObString &cluster_name, const ObString &vip_name,
-    ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + OB_IP_STR_BUFF> &key_string);
+    ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + MAX_IP_ADDR_LENGTH> &key_string);
 
 void ObCpuTableProcessor::commit(bool is_success)
 {
@@ -214,7 +214,7 @@ int ObCpuTableProcessor::handle_cpu_config(
   int ret = OB_SUCCESS;
   ObString key_name;
   ObTenantCpu* tenant_cpu = NULL;
-  common::ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::OB_IP_STR_BUFF> key_string;
+  common::ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::MAX_IP_ADDR_LENGTH> key_string;
   if (max_cpu_usage <= 0) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("max cpu usage error", K(max_cpu_usage), K(ret));
diff --git a/src/obproxy/omt/ob_proxy_config_table_processor.cpp b/src/obproxy/omt/ob_proxy_config_table_processor.cpp
index f07e9b83..f3a1966a 100644
--- a/src/obproxy/omt/ob_proxy_config_table_processor.cpp
+++ b/src/obproxy/omt/ob_proxy_config_table_processor.cpp
@@ -38,7 +38,17 @@
 #include "cmd/ob_internal_cmd_processor.h"
 
 static const char *config_name_array[] = {"proxy_route_policy", "proxy_idc_name", "enable_cloud_full_username",
-                                          "enable_client_ssl", "enable_server_ssl"};
+                                          "enable_client_ssl", "enable_server_ssl",
+                                          "obproxy_read_consistency", "obproxy_read_only",
+                                          "proxy_tenant_name", "rootservice_cluster_name",
+                                          "enable_read_write_split", "enable_transaction_split",
+                                          "target_db_server", "observer_sys_password",
+                                          "observer_sys_password1"};
+
+static const char *EXECUTE_SQL = 
+    "replace into proxy_config(vip, vid, vport, cluster_name, tenant_name, name, value, config_level) values("
+    "'%.*s', %ld, %ld, '%.*s', '%.*s', '%s', '%s', '%.*s')";
+
 using namespace oceanbase::common;
 using namespace oceanbase::obproxy::obutils;
 namespace oceanbase
@@ -143,12 +153,19 @@ int ObProxyConfigTableProcessor::commit(void *arg, bool is_success)
     LOG_WARN("proxy config commit failed", K(is_success));
   }
 
+  get_global_proxy_config_table_processor().clear_execute_sql();
   get_global_proxy_config_table_processor().clean_hashmap(
     get_global_proxy_config_table_processor().get_backup_hashmap());
 
   return OB_SUCCESS;
 }
 
+int ObProxyConfigTableProcessor::before_commit(void *arg)
+{
+  sqlite3 *db = (sqlite3*)arg;
+  return get_global_proxy_config_table_processor().commit_execute_sql(db);
+}
+
 void ObProxyConfigTableProcessor::inc_index()
 {
   DRWLock::WRLockGuard guard(proxy_config_lock_);
@@ -167,6 +184,7 @@ int ObProxyConfigTableProcessor::init()
   ObConfigHandler handler;
   handler.execute_func_ = &ObProxyConfigTableProcessor::execute;
   handler.commit_func_ = &ObProxyConfigTableProcessor::commit;
+  handler.before_commit_func_ = &ObProxyConfigTableProcessor::before_commit;
   if (OB_FAIL(get_global_config_processor().register_callback("proxy_config", handler))) {
     LOG_WARN("register proxy config table callback failed", K(ret));
   }
@@ -237,15 +255,15 @@ int ObProxyConfigTableProcessor::set_proxy_config(void *arg)
     ObString name;
     SqlFieldResult *sql_fields = static_cast<SqlFieldResult*>(arg);
     for (int i = 0; OB_SUCC(ret) && i < sql_fields->field_num_; i++) {
-      SqlField &sql_field = sql_fields->fields_.at(i);
-      if (0 == sql_field.column_name_.string_.case_compare("vip")) {
+      SqlField &sql_field = *(sql_fields->fields_.at(i));
+      if (0 == sql_field.column_name_.config_string_.case_compare("vip")) {
         if (TOKEN_STR_VAL != sql_field.value_type_) {
           ret = OB_ERR_UNEXPECTED;
           LOG_WARN("unexpeted type", K(sql_field.value_type_), K(ret));
         } else {
           vip = sql_field.column_value_.config_string_;
         }
-      } else if (0 == sql_field.column_name_.string_.case_compare("vport")) {
+      } else if (0 == sql_field.column_name_.config_string_.case_compare("vport")) {
         if (TOKEN_STR_VAL == sql_field.value_type_) {
           vport = atoi(sql_field.column_value_.config_string_.ptr());
         } else if (TOKEN_INT_VAL == sql_field.value_type_) {
@@ -254,7 +272,7 @@ int ObProxyConfigTableProcessor::set_proxy_config(void *arg)
           ret = OB_ERR_UNEXPECTED;
           LOG_WARN("invalid value type", K(sql_field.value_type_), K(ret));
         }
-      } else if (0 == sql_field.column_name_.string_.case_compare("vid")) {
+      } else if (0 == sql_field.column_name_.config_string_.case_compare("vid")) {
         if (TOKEN_STR_VAL == sql_field.value_type_) {
           vid = atoi(sql_field.column_value_.config_string_.ptr());
         } else if (TOKEN_INT_VAL == sql_field.value_type_) {
@@ -263,28 +281,28 @@ int ObProxyConfigTableProcessor::set_proxy_config(void *arg)
           ret = OB_ERR_UNEXPECTED;
           LOG_WARN("invalid value type", K(sql_field.value_type_), K(ret));
         }
-      } else if (0 == sql_field.column_name_.string_.case_compare("config_level")) {
+      } else if (0 == sql_field.column_name_.config_string_.case_compare("config_level")) {
         if (TOKEN_STR_VAL != sql_field.value_type_) {
           ret = OB_ERR_UNEXPECTED;
           LOG_WARN("unexpeted type", K(sql_field.value_type_), K(ret));
         } else {
           item->config_level_.assign(sql_field.column_value_.config_string_.ptr());
         }
-      } else if (0 == sql_field.column_name_.string_.case_compare("tenant_name")) {
+      } else if (0 == sql_field.column_name_.config_string_.case_compare("tenant_name")) {
         if (TOKEN_STR_VAL != sql_field.value_type_) {
           ret = OB_ERR_UNEXPECTED;
           LOG_WARN("unexpeted type", K(sql_field.value_type_), K(ret));
         } else {
           item->tenant_name_.assign(sql_field.column_value_.config_string_.ptr());
         }
-      } else if (0 == sql_field.column_name_.string_.case_compare("cluster_name")) {
+      } else if (0 == sql_field.column_name_.config_string_.case_compare("cluster_name")) {
         if (TOKEN_STR_VAL != sql_field.value_type_) {
           ret = OB_ERR_UNEXPECTED;
           LOG_WARN("unexpeted type", K(sql_field.value_type_), K(ret));
         } else {
           item->cluster_name_.assign(sql_field.column_value_.config_string_.ptr());
         }
-      } else if (0 == sql_field.column_name_.string_.case_compare("name")) {
+      } else if (0 == sql_field.column_name_.config_string_.case_compare("name")) {
         if (TOKEN_STR_VAL != sql_field.value_type_) {
           ret = OB_ERR_UNEXPECTED;
           LOG_WARN("unexpeted type", K(sql_field.value_type_), K(ret));
@@ -292,7 +310,7 @@ int ObProxyConfigTableProcessor::set_proxy_config(void *arg)
           ObString &name = sql_field.column_value_.config_string_;
           item->config_item_.set_name(name.ptr());
         }
-      } else if (0 == sql_field.column_name_.string_.case_compare("value")) {
+      } else if (0 == sql_field.column_name_.config_string_.case_compare("value")) {
         if (TOKEN_STR_VAL != sql_field.value_type_) {
           ret = OB_ERR_UNEXPECTED;
           LOG_WARN("unexpeted type", K(sql_field.value_type_), K(ret));
@@ -301,12 +319,12 @@ int ObProxyConfigTableProcessor::set_proxy_config(void *arg)
         }
       } else {
         ret = OB_ERR_UNEXPECTED;
-        LOG_WARN("unexpected column name", K(sql_field.column_name_.string_));
+        LOG_WARN("unexpected column name", K(sql_field.column_name_.config_string_));
       }
     }
 
     if (OB_SUCC(ret)) {
-      item->vip_addr_.set(ObAddr::convert_ipv4_addr(vip.ptr()), static_cast<int32_t>(vport), vid);
+      item->vip_addr_.set(vip.ptr(), static_cast<int32_t>(vport), vid);
       if (0 != strcasecmp("LEVEL_GLOBAL", item->config_level_.ptr())
           && !is_config_in_service(item->config_item_.name())) {
         ret = OB_NOT_SUPPORTED;
@@ -321,7 +339,45 @@ int ObProxyConfigTableProcessor::set_proxy_config(void *arg)
           tmp_item = NULL;
         }
 
-        if (need_sync_to_file_ && 0 == strcasecmp("LEVEL_GLOBAL", item->config_level_.ptr()) &&
+        // need_sync_to_file_ indicates that it is not a command set by alter proxyconfig,
+        // but a configuration item set by proxy_config
+        if (need_sync_to_file_) {
+          if ((0 == strcasecmp("obproxy_sys_password", item->config_item_.name())
+              || 0 == strcasecmp("observer_sys_password", item->config_item_.name())
+              || 0 == strcasecmp("observer_sys_password1", item->config_item_.name()))
+              && (NULL != item->config_item_.str() && '\0' != *item->config_item_.str())) {
+            char value_str[common::OB_MAX_CONFIG_VALUE_LEN + 1];
+            char passwd_staged1_buf[ENC_STRING_BUF_LEN];
+            ObString tmp_value_string;
+            ObString passwd_string(ENC_STRING_BUF_LEN, passwd_staged1_buf);
+            if (OB_FAIL(ObEncryptedHelper::encrypt_passwd_to_stage1(item->config_item_.str(), passwd_string))) {
+              LOG_WARN("encrypt_passwd_to_stage1 failed", K(ret));
+            } else {
+              MEMCPY(value_str, passwd_staged1_buf + 1, 40);
+              value_str[40] = '\0';
+              tmp_value_string.assign(value_str, 40);
+              item->config_item_.set_value(tmp_value_string);
+              char sql[1024];
+              int64_t len = static_cast<int64_t>(snprintf(sql, 1024, EXECUTE_SQL, vip.length(), vip.ptr(), vid, vport,
+                                                item->cluster_name_.size(), item->cluster_name_.ptr(), 
+                                                item->tenant_name_.size(), item->tenant_name_.ptr(),
+                                                item->config_item_.name(), item->config_item_.str(),
+                                                item->config_level_.size(), item->config_level_.ptr()));
+              if (OB_UNLIKELY(len <= 0 || len >= 1024)) {
+                ret = OB_ERR_UNEXPECTED;
+                LOG_WARN("get execute sql failed", K(len), K(ret));
+              } else {
+                ObProxyVariantString buf_string;
+                buf_string.set_value(sql);
+                if (OB_FAIL(execute_sql_array_.push_back(buf_string))) {
+                  LOG_WARN("execute_sql_array push back failed", K(ret));
+                }
+              }
+            }
+          }
+        }
+
+        if (OB_SUCC(ret) && need_sync_to_file_ && 0 == strcasecmp("LEVEL_GLOBAL", item->config_level_.ptr()) &&
             OB_FAIL(alter_proxy_config(item->config_item_.name(), item->config_item_.str()))) {
           LOG_WARN("alter proxyconfig failed", K(ret));
         } else if (OB_FAIL(backup_map.unique_set(item))) {
@@ -359,22 +415,22 @@ int ObProxyConfigTableProcessor::delete_proxy_config(void *arg)
       bool need_delete = true;
       ++it;
       for (int i = 0; OB_SUCC(ret) && need_delete && i < fields->field_num_; i++) {
-        SqlField &sql_field = fields->fields_.at(i);
-        if (0 == sql_field.column_name_.string_.case_compare("vip")) {
+        SqlField* sql_field = fields->fields_.at(i);
+        if (0 == sql_field->column_name_.config_string_.case_compare("vip")) {
           char ip_buf[256];
           item.vip_addr_.addr_.ip_to_string(ip_buf, 256);
-          if (TOKEN_STR_VAL != sql_field.value_type_) {
+          if (TOKEN_STR_VAL != sql_field->value_type_) {
             ret = OB_ERR_UNEXPECTED;
-            LOG_WARN("unexpeted type", K(sql_field.value_type_), K(ret));
-          } else if (0 != strcasecmp(ip_buf, sql_field.column_value_.config_string_.ptr())) {
+            LOG_WARN("unexpeted type", K(sql_field->value_type_), K(ret));
+          } else if (0 != strcasecmp(ip_buf, sql_field->column_value_.config_string_.ptr())) {
             need_delete = false;
           }
-        } else if (0 == sql_field.column_name_.string_.case_compare("vport")) {
+        } else if (0 == sql_field->column_name_.config_string_.case_compare("vport")) {
           int64_t vport = 0;
-          if (TOKEN_STR_VAL == sql_field.value_type_) {
-            vport = atoi(sql_field.column_value_.config_string_.ptr());
-          } else if (TOKEN_INT_VAL == sql_field.value_type_) {
-            vport = sql_field.column_int_value_;
+          if (TOKEN_STR_VAL == sql_field->value_type_) {
+            vport = atoi(sql_field->column_value_.config_string_.ptr());
+          } else if (TOKEN_INT_VAL == sql_field->value_type_) {
+            vport = sql_field->column_int_value_;
           } else {
             ret = OB_ERR_UNEXPECTED;
             LOG_WARN("invalid value type", K(ret));
@@ -384,12 +440,12 @@ int ObProxyConfigTableProcessor::delete_proxy_config(void *arg)
               need_delete = false;
             }
           }
-        } else if (0 == sql_field.column_name_.string_.case_compare("vid")) {
+        } else if (0 == sql_field->column_name_.config_string_.case_compare("vid")) {
           int64_t vid = 0;
-          if (TOKEN_STR_VAL == sql_field.value_type_) {
-            vid = atoi(sql_field.column_value_.config_string_.ptr());
-          } else if (TOKEN_INT_VAL == sql_field.value_type_) {
-            vid = sql_field.column_int_value_;
+          if (TOKEN_STR_VAL == sql_field->value_type_) {
+            vid = atoi(sql_field->column_value_.config_string_.ptr());
+          } else if (TOKEN_INT_VAL == sql_field->value_type_) {
+            vid = sql_field->column_int_value_;
           } else {
             ret = OB_ERR_UNEXPECTED;
             LOG_WARN("invalid value type", K(ret));
@@ -399,44 +455,44 @@ int ObProxyConfigTableProcessor::delete_proxy_config(void *arg)
               need_delete = false;
             }
           }
-        } else if (0 == sql_field.column_name_.string_.case_compare("config_level")) {
-          if (TOKEN_STR_VAL != sql_field.value_type_) {
+        } else if (0 == sql_field->column_name_.config_string_.case_compare("config_level")) {
+          if (TOKEN_STR_VAL != sql_field->value_type_) {
             ret = OB_ERR_UNEXPECTED;
-            LOG_WARN("unexpeted type", K(sql_field.value_type_), K(ret));
-          } else if (0 != strcasecmp(item.config_level_.ptr(), sql_field.column_value_.config_string_.ptr())) {
+            LOG_WARN("unexpeted type", K(sql_field->value_type_), K(ret));
+          } else if (0 != strcasecmp(item.config_level_.ptr(), sql_field->column_value_.config_string_.ptr())) {
             need_delete = false;
           }
-        } else if (0 == sql_field.column_name_.string_.case_compare("tenant_name")) {
-          if (TOKEN_STR_VAL != sql_field.value_type_) {
+        } else if (0 == sql_field->column_name_.config_string_.case_compare("tenant_name")) {
+          if (TOKEN_STR_VAL != sql_field->value_type_) {
             ret = OB_ERR_UNEXPECTED;
-            LOG_WARN("unexpeted type", K(sql_field.value_type_), K(ret));
-          } else if (0 != strcasecmp(item.tenant_name_.ptr(), sql_field.column_value_.config_string_.ptr())) {
+            LOG_WARN("unexpeted type", K(sql_field->value_type_), K(ret));
+          } else if (0 != strcasecmp(item.tenant_name_.ptr(), sql_field->column_value_.config_string_.ptr())) {
             need_delete = false;
           }
-        } else if (0 == sql_field.column_name_.string_.case_compare("cluster_name")) {
-          if (TOKEN_STR_VAL != sql_field.value_type_) {
+        } else if (0 == sql_field->column_name_.config_string_.case_compare("cluster_name")) {
+          if (TOKEN_STR_VAL != sql_field->value_type_) {
             ret = OB_ERR_UNEXPECTED;
-            LOG_WARN("unexpeted type", K(sql_field.value_type_), K(ret));
-          } else if (0 != strcasecmp(item.cluster_name_.ptr(), sql_field.column_value_.config_string_.ptr())) {
+            LOG_WARN("unexpeted type", K(sql_field->value_type_), K(ret));
+          } else if (0 != strcasecmp(item.cluster_name_.ptr(), sql_field->column_value_.config_string_.ptr())) {
             need_delete = false;
           }
-        } else if (0 == sql_field.column_name_.string_.case_compare("name")) {
-          if (TOKEN_STR_VAL != sql_field.value_type_) {
+        } else if (0 == sql_field->column_name_.config_string_.case_compare("name")) {
+          if (TOKEN_STR_VAL != sql_field->value_type_) {
             ret = OB_ERR_UNEXPECTED;
-            LOG_WARN("unexpeted type", K(sql_field.value_type_), K(ret));
-          } else if (0 != strcasecmp(item.config_item_.name(), sql_field.column_value_.config_string_.ptr())) {
+            LOG_WARN("unexpeted type", K(sql_field->value_type_), K(ret));
+          } else if (0 != strcasecmp(item.config_item_.name(), sql_field->column_value_.config_string_.ptr())) {
             need_delete = false;
           }
-        } else if (0 == sql_field.column_name_.string_.case_compare("value")) {
-          if (TOKEN_STR_VAL != sql_field.value_type_) {
+        } else if (0 == sql_field->column_name_.config_string_.case_compare("value")) {
+          if (TOKEN_STR_VAL != sql_field->value_type_) {
             ret = OB_ERR_UNEXPECTED;
-            LOG_WARN("unexpeted type", K(sql_field.value_type_), K(ret));
-          } else if (0 != strcasecmp(item.config_item_.str(), sql_field.column_value_.config_string_.ptr())) {
+            LOG_WARN("unexpeted type", K(sql_field->value_type_), K(ret));
+          } else if (0 != strcasecmp(item.config_item_.str(), sql_field->column_value_.config_string_.ptr())) {
             need_delete = false;
           }
         } else {
           ret = OB_ERR_UNEXPECTED;
-          LOG_WARN("unexpected column name", K(sql_field.column_name_.string_));
+          LOG_WARN("unexpected column name", K(sql_field->column_name_));
         }
       }
 
@@ -482,7 +538,7 @@ int ObProxyConfigTableProcessor::get_config_item(const obutils::ObVipAddr &addr,
     LOG_WARN("proxy config item is null unexpected", K(ret));
   } else {
     item = *proxy_config_item;
-    LOG_DEBUG("get config item succ", K(addr), K(cluster_name), K(tenant_name), K(item));
+    LOG_TRACE("get config item succ", K(addr), K(cluster_name), K(tenant_name), K(item));
   }
 
   return ret;
@@ -501,22 +557,6 @@ int ObProxyConfigTableProcessor::alter_proxy_config(const common::ObString &key_
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("invalid argument", K(key_string), K(value_string), K(ret));
   } else {
-    char value_str[common::OB_MAX_CONFIG_VALUE_LEN + 1];
-    if ((0 == key_string.case_compare("observer_sys_password")
-      || 0 == key_string.case_compare("obproxy_sys_password")
-      || 0 == key_string.case_compare("observer_sys_password1"))
-      && !value_string.empty()) {
-      char passwd_staged1_buf[ENC_STRING_BUF_LEN];
-      ObString passwd_string(ENC_STRING_BUF_LEN, passwd_staged1_buf);
-      if (OB_FAIL(ObEncryptedHelper::encrypt_passwd_to_stage1(value_string, passwd_string))) {
-        LOG_WARN("encrypt_passwd_to_stage1 failed", K(ret));
-      } else {
-        MEMCPY(value_str, passwd_staged1_buf + 1, 40);
-        value_str[40] = '\0';
-        tmp_value_string.assign(value_str, 40);
-        LOG_DEBUG("alter password", K(key_string), K(value_string));
-      }
-    }
     if (OB_ISNULL(reload_config = get_global_internal_cmd_processor().get_reload_config())) {
     ret = OB_ERR_NULL_VALUE;
     LOG_WARN("fail to get reload config", K(ret));
@@ -586,6 +626,36 @@ bool ObProxyConfigTableProcessor::is_config_in_service(const ObString &config_na
   return is_in_service;
 }
 
+int ObProxyConfigTableProcessor::commit_execute_sql(sqlite3 *db)
+{
+  int ret = OB_SUCCESS;
+  if (execute_sql_array_.count() > 0) {
+    if (OB_UNLIKELY(NULL == db)) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("sqlite db is null unexpected", K(ret));
+    }
+    for (int64_t i = 0; OB_SUCC(ret) && i < execute_sql_array_.count(); i++) {
+      char *err_msg = NULL;
+      ObString sql = execute_sql_array_.at(i).config_string_;
+      if (SQLITE_OK != sqlite3_exec(db, sql.ptr(), NULL, 0, &err_msg)) {
+        ret = OB_ERR_UNEXPECTED;
+        LOG_WARN("exec failed", K(ret), "err_msg", err_msg);
+      }
+
+      if (NULL != err_msg) {
+        sqlite3_free(err_msg);
+      }
+    }
+  }
+
+  return ret;
+}
+
+void ObProxyConfigTableProcessor::clear_execute_sql()
+{
+  execute_sql_array_.reset();
+}
+
 } // end of omt
 } // end of obprxy
 } // end of oceanbase
diff --git a/src/obproxy/omt/ob_proxy_config_table_processor.h b/src/obproxy/omt/ob_proxy_config_table_processor.h
index eae6ade5..ef172825 100644
--- a/src/obproxy/omt/ob_proxy_config_table_processor.h
+++ b/src/obproxy/omt/ob_proxy_config_table_processor.h
@@ -31,10 +31,13 @@
 #ifndef OB_PROXY_CONFIG_TABLE_PROCESSOR_H_
 #define OB_PROXY_CONFIG_TABLE_PROCESSOR_H_
 
+#include <sqlite/sqlite3.h>
+
 #include "lib/lock/ob_drw_lock.h"
 #include "obutils/ob_vip_tenant_cache.h"
 #include "lib/string/ob_fixed_length_string.h"
 #include "share/config/ob_config.h"
+#include "obutils/ob_proxy_string_utils.h"
 
 namespace oceanbase
 {
@@ -98,7 +101,8 @@ class ObProxyConfigTableProcessor
 
 public:
   ObProxyConfigTableProcessor() : index_(0), proxy_config_lock_(obsys::WRITE_PRIORITY),
-                                  config_version_(0), need_sync_to_file_(false) {}
+                                  config_version_(0), need_sync_to_file_(false),
+                                  execute_sql_array_() {}
   ~ObProxyConfigTableProcessor() {}
 
   int init();
@@ -113,6 +117,8 @@ class ObProxyConfigTableProcessor
   void inc_config_version() { config_version_++; }
   void set_need_sync_to_file(const bool bvalue) { need_sync_to_file_ = bvalue; }
   ProxyConfigHashMap& get_backup_hashmap() { return proxy_config_map_array_[(index_ + 1) % 2]; }
+  int commit_execute_sql(sqlite3 *db);
+  void clear_execute_sql();
 private:
   void clean_hashmap_with_lock(ProxyConfigHashMap &map);
   int backup_hashmap_with_lock();
@@ -120,6 +126,7 @@ class ObProxyConfigTableProcessor
   bool is_config_in_service(const common::ObString &config_name);
   static int execute(void *arg);
   static int commit(void* arg, bool is_success);
+  static int before_commit(void * arg);
 
 private:
   ProxyConfigHashMap proxy_config_map_array_[2];
@@ -127,6 +134,7 @@ class ObProxyConfigTableProcessor
   common::DRWLock proxy_config_lock_;
   uint64_t config_version_;
   bool need_sync_to_file_;
+  common::ObSEArray<obutils::ObProxyVariantString, 4> execute_sql_array_;
 private:
   DISALLOW_COPY_AND_ASSIGN(ObProxyConfigTableProcessor);
 };
diff --git a/src/obproxy/omt/ob_resource_unit_table_processor.cpp b/src/obproxy/omt/ob_resource_unit_table_processor.cpp
index c216670e..6311e3b7 100644
--- a/src/obproxy/omt/ob_resource_unit_table_processor.cpp
+++ b/src/obproxy/omt/ob_resource_unit_table_processor.cpp
@@ -69,11 +69,11 @@ int ObResourceUnitTableProcessor::get_config_params(void* args,
     } else {
       // The storage format is:[cluster|tenant|name|value]
       for (int64_t i = 0; i < fields->field_num_; i++) {
-        SqlField& sql_field = fields->fields_.at(i);
-        if (0 == sql_field.column_name_.string_.case_compare("name")) {
-          name_str = sql_field.column_value_.config_string_;
-        } else if (0 == sql_field.column_name_.string_.case_compare("value")) {
-          value_str = sql_field.column_value_.config_string_;
+        SqlField* sql_field = fields->fields_.at(i);
+        if (0 == sql_field->column_name_.config_string_.case_compare("name")) {
+          name_str = sql_field->column_value_.config_string_;
+        } else if (0 == sql_field->column_name_.config_string_.case_compare("value")) {
+          value_str = sql_field->column_value_.config_string_;
         }
       }
     }
@@ -216,16 +216,16 @@ int ObResourceUnitTableProcessor::handle_delete_config(
 }
 
 int build_tenant_cluster_vip_name(const ObString &tenant_name, const ObString &cluster_name,
-    const ObString &vip_name, ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + OB_IP_STR_BUFF> &key_string)
+    const ObString &vip_name, ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + MAX_IP_ADDR_LENGTH> &key_string)
 {
   int ret = OB_SUCCESS;
-  char buf[OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + OB_IP_STR_BUFF];
+  char buf[OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + MAX_IP_ADDR_LENGTH];
   int64_t len = 0;
-  len = static_cast<int64_t>(snprintf(buf, OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + OB_IP_STR_BUFF, "%.*s#%.*s|%.*s",
+  len = static_cast<int64_t>(snprintf(buf, OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + MAX_IP_ADDR_LENGTH, "%.*s#%.*s|%.*s",
     tenant_name.length(), tenant_name.ptr(),
     cluster_name.length(), cluster_name.ptr(),
     vip_name.length(), vip_name.ptr()));
-  if (OB_UNLIKELY(len <= 0) || OB_UNLIKELY(len >= OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + OB_IP_STR_BUFF)) {
+  if (OB_UNLIKELY(len <= 0) || OB_UNLIKELY(len >= OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + MAX_IP_ADDR_LENGTH)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("fail to fill buf", K(ret), K(tenant_name), K(cluster_name), K(vip_name));
   } else if (OB_FAIL(key_string.assign(buf))) {
diff --git a/src/obproxy/omt/ob_resource_unit_table_processor.h b/src/obproxy/omt/ob_resource_unit_table_processor.h
index cc5967b2..f8f90838 100644
--- a/src/obproxy/omt/ob_resource_unit_table_processor.h
+++ b/src/obproxy/omt/ob_resource_unit_table_processor.h
@@ -62,7 +62,7 @@ class ObResourceUnitTableProcessor
 ObResourceUnitTableProcessor &get_global_resource_unit_table_processor();
 int build_tenant_cluster_vip_name(const common::ObString &tenant_name,
     const common::ObString &cluster_name, const common::ObString &vip_name,
-    common::ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::OB_IP_STR_BUFF>& key_string);
+    common::ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::MAX_IP_ADDR_LENGTH>& key_string);
 } // end of namespace omt
 } // end of namespace obproxy
 } // end of namespace oceanbase
diff --git a/src/obproxy/omt/ob_ssl_config_table_processor.cpp b/src/obproxy/omt/ob_ssl_config_table_processor.cpp
index e7a42d3e..7f05b740 100644
--- a/src/obproxy/omt/ob_ssl_config_table_processor.cpp
+++ b/src/obproxy/omt/ob_ssl_config_table_processor.cpp
@@ -72,11 +72,11 @@ int ObSSLConfigTableProcessor::execute(void *arg)
       LOG_WARN("execute failed, tenant_name or cluster_name is null", K(ret), K(cluster_name), K(tenant_name));
     } else {
       for (int64_t i = 0; i < params->fields_->field_num_; i++) {
-        SqlField &sql_field = params->fields_->fields_.at(i);
-        if (sql_field.column_name_.string_ == "value") {
-          value = sql_field.column_value_.config_string_;
-        } else if (sql_field.column_name_.string_ == "name") {
-          name = sql_field.column_value_.config_string_;
+        SqlField *sql_field = params->fields_->fields_.at(i);
+        if (0 == sql_field->column_name_.config_string_.case_compare("value")) {
+          value = sql_field->column_value_.config_string_;
+        } else if (0 == sql_field->column_name_.config_string_.case_compare("name")) {
+          name = sql_field->column_value_.config_string_;
         }
       }
 
diff --git a/src/obproxy/omt/ob_vip_tenant_conn.cpp b/src/obproxy/omt/ob_vip_tenant_conn.cpp
index 6286c285..86f3480b 100644
--- a/src/obproxy/omt/ob_vip_tenant_conn.cpp
+++ b/src/obproxy/omt/ob_vip_tenant_conn.cpp
@@ -45,7 +45,7 @@ using namespace obsys;
 using namespace oceanbase::common;
 
 extern int build_tenant_cluster_vip_name(const ObString &tenant_name, const ObString &cluster_name, const ObString &vip_name,
-    ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + OB_IP_STR_BUFF> &key_string);
+    ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + MAX_IP_ADDR_LENGTH> &key_string);
 
 int ObVipTenantConn::set_tenant_cluster(const ObString &tenant_name, const ObString &cluster_name)
 {
@@ -66,7 +66,7 @@ int ObVipTenantConn::set_tenant_cluster(const ObString &tenant_name, const ObStr
 int ObVipTenantConn::set_addr(const common::ObString addr)
 {
   int ret = OB_SUCCESS;
-  if (addr.empty() || addr.length() > OB_IP_STR_BUFF) {
+  if (addr.empty() || addr.length() > MAX_IP_ADDR_LENGTH) {
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("name invalid", K(addr), K(ret));
   } else {
@@ -80,7 +80,7 @@ int ObVipTenantConn::set_full_name()
 {
   int ret = OB_SUCCESS;
 
-  ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + OB_IP_STR_BUFF> full_name;
+  ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + MAX_IP_ADDR_LENGTH> full_name;
   if (OB_FAIL(build_tenant_cluster_vip_name(tenant_name_, cluster_name_, vip_name_, full_name))) {
     LOG_WARN("build tenant cluser and vip name failed", K(ret), K_(tenant_name), K_(cluster_name), K_(vip_name));
   } else {
@@ -149,7 +149,7 @@ int ObVipTenantConnCache::get(ObString& key_name, ObVipTenantConn*& vt_conn)
   int ret = OB_SUCCESS;
   ObVipTenantConn *tmp_vt_conn = NULL;
 
-  if (key_name.empty() || key_name.length() > OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + OB_IP_STR_BUFF) {
+  if (key_name.empty() || key_name.length() > OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + MAX_IP_ADDR_LENGTH) {
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("name invalid", K(key_name), K(ret));
   } else {
@@ -231,19 +231,19 @@ int ObVipTenantConnCache::backup()
 
   //CWLockGuard guard(rwlock_);
   // Initialization state:
-  // vt_conn_map_ = vt_conn_map_array[0]; 
+  // vt_conn_map_ = vt_conn_map_array[0];
   // replica_vt_conn_map = vt_conn_map_array[1];
   VTHashMap& replica_vt_conn_map = get_conn_map_replica();
   clear_conn_map(replica_vt_conn_map);
   // Even if an error occurs in the backup process and an error is returned to the cloud platform, vt_conn_map_ is still the previous configuration information
   VTHashMap::iterator last = vt_conn_map_->end();
   for (VTHashMap::iterator it = vt_conn_map_->begin(); it != last; ++it) {
-    ObVipTenantConn* tmp_vt_conn = NULL; 
+    ObVipTenantConn* tmp_vt_conn = NULL;
     if (OB_ISNULL(tmp_vt_conn = op_alloc(ObVipTenantConn))) {
       ret = OB_ALLOCATE_MEMORY_FAILED;
       LOG_WARN("fail to alloc memory for ObVipTenantConn", K(ret));
     } else if (OB_FAIL(tmp_vt_conn->set(
-      it->cluster_name_, it->tenant_name_, it->vip_name_, it->max_connections_))) {    
+      it->cluster_name_, it->tenant_name_, it->vip_name_, it->max_connections_))) {
       LOG_WARN("fail to set vip tenant connect info", K(ret));
     } else if (OB_FAIL(replica_vt_conn_map.unique_set(tmp_vt_conn))) {
       LOG_WARN("insert vip tenant connection failed", K(ret));
@@ -302,7 +302,7 @@ void ObVipTenantConnCache::dump_conn_map(VTHashMap &cache_map)
 int ObUsedConnCache::get(ObString& key_name, ObUsedConn*& used_conn)
 {
   int ret = OB_SUCCESS;
-  if (key_name.empty() || key_name.length() > OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + OB_IP_STR_BUFF) {
+  if (key_name.empty() || key_name.length() > OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + MAX_IP_ADDR_LENGTH) {
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("name invalid", K(key_name), K(ret));
   } else if (OB_FAIL(used_conn_map_.get_refactored(key_name, used_conn))) {
@@ -326,7 +326,7 @@ int ObUsedConnCache::set(ObUsedConn* used_conn)
 int ObUsedConnCache::erase(ObString& key_name)
 {
   int ret = OB_SUCCESS;
-  if (key_name.empty() || key_name.length() > OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + OB_IP_STR_BUFF) {
+  if (key_name.empty() || key_name.length() > OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + MAX_IP_ADDR_LENGTH) {
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("name invalid", K(key_name), K(ret));
   } else if (OB_FAIL(used_conn_map_.erase_refactored(key_name))) {
diff --git a/src/obproxy/omt/ob_vip_tenant_conn.h b/src/obproxy/omt/ob_vip_tenant_conn.h
index b767c0ea..ea3de354 100644
--- a/src/obproxy/omt/ob_vip_tenant_conn.h
+++ b/src/obproxy/omt/ob_vip_tenant_conn.h
@@ -78,10 +78,10 @@ class ObVipTenantConn {
   LINK(ObVipTenantConn, vt_link_);
 
 private:
-  char tenant_name_str_[common::OB_MAX_TENANT_NAME_LENGTH];  
+  char tenant_name_str_[common::OB_MAX_TENANT_NAME_LENGTH];
   char cluster_name_str_[OB_PROXY_MAX_CLUSTER_NAME_LENGTH];
-  char vip_name_str_[common::OB_IP_STR_BUFF];
-  char full_name_str_[OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::OB_IP_STR_BUFF];
+  char vip_name_str_[common::MAX_IP_ADDR_LENGTH];
+  char full_name_str_[OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::MAX_IP_ADDR_LENGTH];
   DISALLOW_COPY_AND_ASSIGN(ObVipTenantConn);
 };
 
@@ -109,7 +109,7 @@ class ObVipTenantConnCache
   typedef common::hash::ObBuildInHashMap<VTCacheHashing, HASH_BUCKET_SIZE> VTHashMap;
 
 public:
-  
+
   int set(ObVipTenantConn* vt);
   int get(common::ObString& key_name, ObVipTenantConn*& vt_conn);
   int erase(common::ObString& cluster_name, common::ObString& tenant_name);
@@ -132,7 +132,7 @@ class ObVipTenantConnCache
 class ObUsedConn : public common::ObSharedRefCount {
 public:
   ObUsedConn(common::ObString& full_name) : max_used_connections_(0), is_in_map_(false) {
-    if (full_name.length() < OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::OB_IP_STR_BUFF) {
+    if (full_name.length() < OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::MAX_IP_ADDR_LENGTH) {
       MEMCPY(full_name_str_, full_name.ptr(), full_name.length());
       full_name_.assign_ptr(full_name_str_, (int32_t)full_name.length());
     }
@@ -158,7 +158,7 @@ class ObUsedConn : public common::ObSharedRefCount {
   bool is_in_map_;
 
 private:
-  char full_name_str_[OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::OB_IP_STR_BUFF];
+  char full_name_str_[OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::MAX_IP_ADDR_LENGTH];
   DISALLOW_COPY_AND_ASSIGN(ObUsedConn);
 };
 
diff --git a/src/obproxy/omt/ob_vip_tenant_cpu.cpp b/src/obproxy/omt/ob_vip_tenant_cpu.cpp
index 55c18bc2..5260ec22 100644
--- a/src/obproxy/omt/ob_vip_tenant_cpu.cpp
+++ b/src/obproxy/omt/ob_vip_tenant_cpu.cpp
@@ -57,11 +57,11 @@ ObTenantCpu::ObTenantCpu(ObString& cluster_name, ObString& tenant_name,
     MEMCPY(tenant_name_str_, tenant_name.ptr(), tenant_name.length());
     tenant_name_.assign_ptr(tenant_name_str_, tenant_name.length());
   }
-  if (vip_name.length() < OB_IP_STR_BUFF) {
+  if (vip_name.length() < MAX_IP_ADDR_LENGTH) {
     MEMCPY(vip_name_str_, vip_name.ptr(), vip_name.length());
     vip_name_.assign_ptr(vip_name_str_, vip_name.length());
   }
-  if (full_name.length() < OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + OB_IP_STR_BUFF) {
+  if (full_name.length() < OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + MAX_IP_ADDR_LENGTH) {
     MEMCPY(full_name_str_, full_name.ptr(), full_name.length());
     full_name_.assign_ptr(full_name_str_, full_name.length());
   }
@@ -176,7 +176,7 @@ int64_t ObTenantCpuCache::get_cpu_map_count()
 int ObTenantCpuCache::get(ObString& key_name, ObTenantCpu*& tenant_cpu)
 {
   int ret = OB_SUCCESS;
-  if (key_name.empty() || key_name.length() > OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + OB_IP_STR_BUFF) {
+  if (key_name.empty() || key_name.length() > OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + MAX_IP_ADDR_LENGTH) {
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("name invalid", K(key_name), K(ret));
   } else if (OB_FAIL(vt_cpu_map_.get_refactored(key_name, tenant_cpu))) {
diff --git a/src/obproxy/omt/ob_vip_tenant_cpu.h b/src/obproxy/omt/ob_vip_tenant_cpu.h
index 8b598ae4..d0ee29ae 100644
--- a/src/obproxy/omt/ob_vip_tenant_cpu.h
+++ b/src/obproxy/omt/ob_vip_tenant_cpu.h
@@ -73,7 +73,7 @@ class ObTenantCpu : public common::ObSharedRefCount {
 
   int set_unit_max_cpu(double cpu);
   int acquire_more_worker(const int64_t tid);
-  
+
   TO_STRING_KV(K_(tenant_name), K_(cluster_name), K_(vip_name), K_(full_name),
       K_(max_thread_num), K_(backup_max_thread_num), K_(max_cpu_usage), K_(backup_max_cpu_usage),
       K_(index), K_(is_inited), K_(instance_status));
@@ -92,14 +92,14 @@ class ObTenantCpu : public common::ObSharedRefCount {
   bool is_inited_;
   ObTenantCpuStatus instance_status_;
   common::ObSEArray<event::ObEThread*, 16> thread_array_;
-  
+
   LINK(ObTenantCpu, cpu_link_);
 
 private:
-  char tenant_name_str_[common::OB_MAX_TENANT_NAME_LENGTH];  
+  char tenant_name_str_[common::OB_MAX_TENANT_NAME_LENGTH];
   char cluster_name_str_[OB_PROXY_MAX_CLUSTER_NAME_LENGTH];
-  char vip_name_str_[common::OB_IP_STR_BUFF];
-  char full_name_str_[OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::OB_IP_STR_BUFF];
+  char vip_name_str_[common::MAX_IP_ADDR_LENGTH];
+  char full_name_str_[OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH + common::MAX_IP_ADDR_LENGTH];
   DISALLOW_COPY_AND_ASSIGN(ObTenantCpu);
 };
 
@@ -148,4 +148,4 @@ class ObTenantCpuCache
 }  // namespace obproxy
 }  // namespace oceanbase
 
-#endif  // OB_VIP_TENANT_CPU_H
\ No newline at end of file
+#endif  // OB_VIP_TENANT_CPU_H
diff --git a/src/obproxy/omt/ob_white_list_table_processor.cpp b/src/obproxy/omt/ob_white_list_table_processor.cpp
index 384c8ff7..b332c216 100644
--- a/src/obproxy/omt/ob_white_list_table_processor.cpp
+++ b/src/obproxy/omt/ob_white_list_table_processor.cpp
@@ -63,9 +63,9 @@ int ObWhiteListTableProcessor::execute(void *arg)
     LOG_WARN("execute failed, tenant_name or cluster_name is null", K(ret), K(cluster_name), K(tenant_name));
   } else {
     for (int64_t i = 0; i < params->fields_->field_num_; i++) {
-      SqlField &sql_field = params->fields_->fields_.at(i);
-      if (sql_field.column_name_.string_ == "value") {
-        ip_list = sql_field.column_value_.config_string_;
+      SqlField *sql_field = params->fields_->fields_.at(i);
+      if (0 == sql_field->column_name_.config_string_.case_compare("value")) {
+        ip_list = sql_field->column_value_.config_string_;
       }
     }
 
@@ -154,6 +154,7 @@ int ObWhiteListTableProcessor::set_ip_list(ObString &cluster_name, ObString &ten
     int pos = 0;
     AddrStruct ip_addr;
     memset(&ip_addr, 0, sizeof(AddrStruct));
+    bool set_ip = false;
     while (OB_SUCC(ret) && pos < ip_list.length()) {
       if (ip_list[pos] == ',' || pos == ip_list.length() - 1 || ip_list[pos] == '/') {
         char buf[64];
@@ -164,10 +165,16 @@ int ObWhiteListTableProcessor::set_ip_list(ObString &cluster_name, ObString &ten
         }
         memcpy(buf, start, len);
         buf[len] = '\0';
-        if (ip_addr.ip_ == 0) {
-          if (OB_FAIL(ip_to_int(buf, ip_addr.ip_))) {
-            LOG_WARN("ip to int failed", K(ret));
+        if (!set_ip) {
+          if (false == ip_addr.addr_.set_ip_addr(buf, 0)) {
+            ret = OB_ERR_UNEXPECTED;
+            LOG_WARN("set ip addr failed", K(buf), K(ret));
             break;
+          } else {
+            if (ObAddr::VER::IPV4 == ip_addr.addr_.version_) {
+              ip_addr.v4_ = to_little_endian(htonl(ip_addr.addr_.ip_.v4_));
+            }
+            set_ip = true;
           }
         } else {
           ip_addr.net_ = atoi(buf);
@@ -183,6 +190,7 @@ int ObWhiteListTableProcessor::set_ip_list(ObString &cluster_name, ObString &ten
             LOG_WARN("ip addr push back failed", K(ret));
           } else {
             memset(&ip_addr, 0, sizeof(AddrStruct));
+            set_ip = false;
           }
         }
         pos++;
@@ -234,26 +242,26 @@ int ObWhiteListTableProcessor::delete_ip_list(ObString &cluster_name, ObString &
   return ret;
 }
 
-bool ObWhiteListTableProcessor::can_ip_pass(ObString &cluster_name, ObString &tenant_name, ObString &user_name, char* ip)
+bool ObWhiteListTableProcessor::can_ip_pass(ObString &cluster_name, ObString &tenant_name,
+                                            ObString &user_name, const struct sockaddr& addr)
 {
-  uint32_t ip_value = 0;
-  int ret = OB_SUCCESS;
   bool can_pass = false;
-  if (OB_FAIL(ip_to_int(ip, ip_value))) {
-    LOG_WARN("ip to in failed", K(ret));
-  } else {
-    can_pass = can_ip_pass(cluster_name, tenant_name, user_name, ip_value, false);
+  if (net::ops_is_ip4(addr)) {
+    can_pass = can_ipv4_pass(cluster_name, tenant_name, user_name, addr);
+  } else if (net::ops_is_ip6(addr)) {
+    can_pass = can_ipv6_pass(cluster_name, tenant_name, user_name, addr);
   }
   return can_pass;
 }
 
-bool ObWhiteListTableProcessor::can_ip_pass(ObString &cluster_name, ObString &tenant_name,
-                                            ObString &user_name, uint32_t src_ip, bool is_big_endian)
+bool ObWhiteListTableProcessor::can_ipv4_pass(ObString &cluster_name, ObString &tenant_name,
+                                              ObString &user_name, const struct sockaddr& in_addr)
 {
   int ret = OB_SUCCESS;
   bool can_pass = false;
-  uint32_t ip = is_big_endian ? to_little_endian(src_ip) : src_ip;
-  LOG_DEBUG("check can ip pass", K(cluster_name), K(tenant_name), K(ip));
+  ObIpEndpoint endpoint(in_addr);
+  uint32_t ip = to_little_endian(endpoint.sin_.sin_addr.s_addr);
+  LOG_DEBUG("check can ip pass", K(cluster_name), K(tenant_name), K(endpoint));
   if (!cluster_name.empty() && !tenant_name.empty()) {
     ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH> key_string;
     if (OB_FAIL(paste_tenant_and_cluster_name(tenant_name, cluster_name, key_string))) {
@@ -265,22 +273,71 @@ bool ObWhiteListTableProcessor::can_ip_pass(ObString &cluster_name, ObString &te
       if (OB_SUCC(current_map.get_refactored(key_string, ip_array))) {
         for (int64_t i = 0; !can_pass && i < ip_array.count(); i++) {
           AddrStruct addr = ip_array.at(i);
-          if (0 == addr.ip_) {
+          if (0 == addr.v4_) {
             can_pass = true;
           } else if (0 == addr.net_) {
-            can_pass = (addr.ip_ == ip);
+            can_pass = (addr.v4_ == ip);
           } else {
             uint32_t mask = 0xffffffff;
-            can_pass = (addr.ip_ == (ip & (mask << (32 - addr.net_))));
+            can_pass = (addr.v4_ == (ip & (mask << (32 - addr.net_))));
           }
-          if (OB_UNLIKELY(IS_DEBUG_ENABLED())) {
-            ObIpEndpoint client_info;
-            ObIpEndpoint white_list_info;
-            client_info.sin_.sin_addr.s_addr = __bswap_32(ip);
-            client_info.sin_.sin_family = AF_INET;
-            white_list_info.sin_.sin_addr.s_addr = __bswap_32(addr.ip_);
-            white_list_info.sin_.sin_family = AF_INET;
-            LOG_DEBUG("ip check can pass", K(client_info), K(white_list_info), "mask", addr.net_, K(can_pass));
+        }
+      } else if (OB_HASH_NOT_EXIST == ret) {
+        can_pass = true;
+      } else {
+        LOG_WARN("unexpected error", K(ret));
+      }
+    }
+  } else {
+    LOG_WARN("cluster_name or tenant_name is empty", K(cluster_name), K(tenant_name), K(endpoint));
+  }
+
+  if (!can_pass) {
+    LOG_WARN("can not pass white_list", K(cluster_name), K(tenant_name), K(user_name), K(endpoint));
+  }
+
+  return can_pass;
+}
+
+bool ObWhiteListTableProcessor::can_ipv6_pass(ObString &cluster_name, ObString &tenant_name,
+                                              ObString &user_name, const struct sockaddr& in6_addr)
+{
+  int ret = OB_SUCCESS;
+  bool can_pass =false;
+  ObIpEndpoint endpoint(in6_addr);
+  LOG_DEBUG("check can ip pass", K(cluster_name), K(tenant_name), K(endpoint));
+  if (!cluster_name.empty() && !tenant_name.empty()) {
+    ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH> key_string;
+    if (OB_FAIL(paste_tenant_and_cluster_name(tenant_name, cluster_name, key_string))) {
+      LOG_WARN("paste tenant and cluster name failed", K(ret), K(tenant_name), K(cluster_name));
+    } else {
+      ObSEArray<AddrStruct, 4> ip_array;
+      DRWLock::RDLockGuard guard(white_list_lock_);
+      WhiteListHashMap &current_map = addr_hash_map_array_[index_];
+      if (OB_SUCC(current_map.get_refactored(key_string, ip_array))) {
+        for (int64_t i = 0; !can_pass && i < ip_array.count(); i++) {
+          AddrStruct addr = ip_array.at(i);
+          if (addr.addr_.ip_.v6_[0] == 0 && addr.addr_.ip_.v6_[1] == 0
+              && addr.addr_.ip_.v6_[2] == 0 && addr.addr_.ip_.v6_[3] == 0) {
+            can_pass = true;
+          } else {
+            int64_t net = addr.net_;
+            int64_t index = 0;
+            can_pass = true;
+            sockaddr_storage ss = addr.addr_.get_sockaddr();
+            sockaddr_in6 &in6 = *(sockaddr_in6*)(&ss);
+            while ((net - 8) >= 0 && can_pass) {
+              if (in6.sin6_addr.s6_addr[index] != endpoint.sin6_.sin6_addr.s6_addr[index]) {
+                can_pass = false;
+              }
+              index++;
+              net -= 8;
+            }
+
+            if (net && can_pass) {
+              can_pass = in6.sin6_addr.s6_addr[index] ==
+                 (endpoint.sin6_.sin6_addr.s6_addr[index] & (0xff << (8 - net)));
+            }
           }
         }
       } else if (OB_HASH_NOT_EXIST == ret) {
@@ -290,13 +347,11 @@ bool ObWhiteListTableProcessor::can_ip_pass(ObString &cluster_name, ObString &te
       }
     }
   } else {
-    LOG_WARN("cluster_name or tenant_name is empty", K(cluster_name), K(tenant_name), K(ip));
+    LOG_WARN("cluster_name or tenant_name is empty", K(cluster_name), K(tenant_name), K(endpoint));
   }
 
   if (!can_pass) {
-    struct sockaddr_in address;
-    address.sin_addr.s_addr = __bswap_32(ip);
-    LOG_WARN("can not pass white_list", K(cluster_name), K(tenant_name), K(user_name), "client_ip", inet_ntoa(address.sin_addr));
+    LOG_WARN("can not pass white_list", K(cluster_name), K(tenant_name), K(user_name), K(endpoint));
   }
 
   return can_pass;
@@ -305,10 +360,8 @@ bool ObWhiteListTableProcessor::can_ip_pass(ObString &cluster_name, ObString &te
 int64_t AddrStruct::to_string(char *buf, const int64_t buf_len) const
 {
   int64_t pos = 0;
-  in_addr addr;
-  addr.s_addr = static_cast<in_addr_t>(ip_);
   J_OBJ_START();
-  J_KV("ip", inet_ntoa(addr), K_(net));
+  J_KV(K_(addr), K_(net));
   J_OBJ_END();
   return pos;
 }
@@ -353,9 +406,7 @@ void ObWhiteListTableProcessor::print_config()
     LOG_DEBUG("white list map info", K(iter->first));
     for (int64_t i = 0; i < iter->second.count(); i++) {
       AddrStruct addr_info = iter->second.at(i);
-      struct sockaddr_in address;
-      address.sin_addr.s_addr = __bswap_32(addr_info.ip_);
-      LOG_DEBUG("ip/net info", "ip", inet_ntoa(address.sin_addr), "mask", addr_info.net_);
+      LOG_DEBUG("ip/net info", K(addr_info));
     }
   }
 }
diff --git a/src/obproxy/omt/ob_white_list_table_processor.h b/src/obproxy/omt/ob_white_list_table_processor.h
index 8c9a5ca2..cbfc2d6f 100644
--- a/src/obproxy/omt/ob_white_list_table_processor.h
+++ b/src/obproxy/omt/ob_white_list_table_processor.h
@@ -35,6 +35,7 @@
 #include "lib/container/ob_se_array.h"
 #include "lib/lock/ob_drw_lock.h"
 #include "utils/ob_proxy_lib.h"
+#include "lib/net/ob_addr.h"
 
 namespace oceanbase
 {
@@ -45,7 +46,8 @@ namespace omt
 
 struct AddrStruct
 {
-  uint32_t ip_;
+  common::ObAddr addr_;
+  uint32_t v4_;
   uint32_t net_;
 
   int64_t to_string(char *buf, const int64_t buf_len) const;
@@ -60,8 +62,7 @@ typedef common::hash::ObHashMap<common::ObFixedLengthString<OB_PROXY_MAX_TENANT_
 
   int init();
   bool can_ip_pass(common::ObString &cluster_name, common::ObString &tenant_name,
-                   common::ObString &user_name, uint32_t src_ip, bool is_big_endian);
-  bool can_ip_pass(common::ObString &cluster_name, common::ObString &tenant_name, common::ObString &user_name, char *ip);
+                   common::ObString &user_name, const struct sockaddr& addr);
   int set_ip_list(common::ObString &cluster_name, common::ObString &tenant_name, common::ObString &ip_list);
   int delete_ip_list(common::ObString &cluster_name, common::ObString &tenant_name);
   void inc_index();
@@ -72,6 +73,10 @@ typedef common::hash::ObHashMap<common::ObFixedLengthString<OB_PROXY_MAX_TENANT_
   int32_t ip_to_int(char *addr, uint32_t &value);
   int backup_hash_map();
   uint32_t to_little_endian(uint32_t value);
+  bool can_ipv4_pass(common::ObString &cluster_name, common::ObString &tenant_name,
+                     common::ObString &user_name, const struct sockaddr& in_addr);
+  bool can_ipv6_pass(common::ObString &cluster_name, common::ObString &tenant_name,
+                     common::ObString &user_name, const struct sockaddr& in6_addr);
 private:
   static int execute(void *arg);
   static int commit(void* arg, bool is_success);
diff --git a/src/obproxy/opsql/dual_parser/ob_dual_parser.cpp b/src/obproxy/opsql/dual_parser/ob_dual_parser.cpp
index 6fe7f409..57b6a974 100644
--- a/src/obproxy/opsql/dual_parser/ob_dual_parser.cpp
+++ b/src/obproxy/opsql/dual_parser/ob_dual_parser.cpp
@@ -394,7 +394,6 @@ int ObProxyDualParser::parse_where_fields(ObCollationType connection_collation)
   }
   ObExprParseMode parse_mode = SELECT_STMT_PARSE_MODE;
   ObExprParseResult& expr_result = result_->expr_result_;
-  expr_result.target_mask_ = FIRST_PART_MASK; // set for init success
   if (OB_FAIL(ObProxySqlParser::get_parse_allocator(allocator_))) {
   } else if (OB_ISNULL(allocator_)) {
     ret = OB_ERR_UNEXPECTED;
diff --git a/src/obproxy/opsql/expr_parser/ob_expr_parse_result.h b/src/obproxy/opsql/expr_parser/ob_expr_parse_result.h
index c27ea471..4dfee39d 100644
--- a/src/obproxy/opsql/expr_parser/ob_expr_parse_result.h
+++ b/src/obproxy/opsql/expr_parser/ob_expr_parse_result.h
@@ -124,9 +124,18 @@ typedef struct _ObProxyTokenList
   ObProxyTokenNode *tail_;
 } ObProxyTokenList;
 
+/**
+ * @brief If level_ == PART_KEY_LEVEL_ONE, first_part_column_idx_ will be set.
+ *        If level_ == PART_KEY_LEVEL_TWO, second_part_column_idx_ will be set.
+ *        If level_ == PART_KEY_LEVEL_BOTH, both of them will be set.
+ *        first_part_column_idx_: the column's idx in partition expression
+ *        second_part_column_idx_: the column's idx in subpartition expression
+ */
 typedef struct _ObProxyRelationExpr
 {
   int64_t column_idx_;
+  int64_t first_part_column_idx_;
+  int64_t second_part_column_idx_;
   ObProxyTokenList *left_value_;
   ObProxyTokenList *right_value_;
   ObProxyFunctionType type_;
@@ -150,17 +159,21 @@ typedef struct _ObProxyPartKeyAccuracy {
 typedef struct _ObProxyPartKey
 {
   ObProxyParseString name_;
+  ObProxyParseString default_value_; // serialized value
   ObProxyPartKeyLevel level_;
-  int64_t idx_; // column position
+  int64_t idx_; // pos in schema columns 
   int64_t obj_type_; // ObObjType
   int64_t cs_type_; // ObCollationType 
+  bool is_exist_in_sql_;  // is part key exist in sql
 
   bool is_generated_;
   int64_t generated_col_idx_;
   int64_t param_num_;
   ObProxyExprType func_type_;
   ObProxyParamNode *params_[OBPROXY_MAX_PARAM_NUM]; // used to store generated func param
-  int64_t idx_in_rowid_;
+  int64_t real_source_idx_; // the real source idx of generated key, have no params_
+  int64_t idx_in_rowid_;        // pos in rowid
+  int64_t idx_in_part_columns_; // pos in part expr columns
   ObProxyPartKeyAccuracy accuracy_;
 } ObProxyPartKey;
 
@@ -185,7 +198,6 @@ typedef struct _ObExprParseResult
   ObExprParseMode parse_mode_;
   ObProxyTableInfo table_info_;
   ObProxyPartKeyInfo part_key_info_;
-  int64_t target_mask_;
 
   // scanner buffer
   void *yyscan_info_; // yy_scan_t
@@ -195,7 +207,6 @@ typedef struct _ObExprParseResult
   jmp_buf jmp_buf_; // handle fatal error
   const char *start_pos_;
   const char *end_pos_;
-  int64_t cur_mask_; // if cur_flag_ == target_flag_ means we will finish parse
   int64_t column_idx_;
   int64_t values_list_idx_;
   int64_t multi_param_values_;
@@ -208,7 +219,6 @@ typedef struct _ObExprParseResult
 
   // hash rowid or not
   bool has_rowid_;
-  
 } ObExprParseResult;
 
 static const char *g_ROWID = "ROWID";
diff --git a/src/obproxy/opsql/expr_parser/ob_expr_parser.h b/src/obproxy/opsql/expr_parser/ob_expr_parser.h
index 0e21e2ca..e39db222 100644
--- a/src/obproxy/opsql/expr_parser/ob_expr_parser.h
+++ b/src/obproxy/opsql/expr_parser/ob_expr_parser.h
@@ -76,7 +76,6 @@ inline int ObExprParser::init_result(ObExprParseResult &parse_result, const char
   parse_result.tmp_buf_ = NULL;
   parse_result.tmp_len_ = 0;
   parse_result.end_pos_ = NULL;
-  parse_result.cur_mask_ = 0;
   parse_result.column_idx_ = 0;
   parse_result.values_list_idx_ = 0;
   parse_result.multi_param_values_ = 0;
@@ -87,12 +86,13 @@ inline int ObExprParser::init_result(ObExprParseResult &parse_result, const char
   parse_result.relation_info_.relation_num_ = 0;
   parse_result.all_relation_info_.relation_num_ = 0;
   parse_result.all_relation_info_.right_value_num_ = 0;
+  for (int64_t i = 0; i < parse_result.part_key_info_.key_num_; ++i) {
+    parse_result.part_key_info_.part_keys_[i].is_exist_in_sql_ = false;
+  }
 
-  if (0 == parse_result.target_mask_
-      || INVALID_PARSE_MODE == parse_result.parse_mode_) {
+  if (INVALID_PARSE_MODE == parse_result.parse_mode_) {
     ret = common::OB_INVALID_ARGUMENT;
     PROXY_LOG(DEBUG, "failed to initialized parser, maybe parse sql for shard user",
-              K(parse_result.target_mask_),
               K(parse_result.parse_mode_),
               K(ret));
   }
diff --git a/src/obproxy/opsql/expr_parser/ob_expr_parser.l b/src/obproxy/opsql/expr_parser/ob_expr_parser.l
index fca7116b..ff498367 100644
--- a/src/obproxy/opsql/expr_parser/ob_expr_parser.l
+++ b/src/obproxy/opsql/expr_parser/ob_expr_parser.l
@@ -45,6 +45,10 @@ do {\
 
 #define RETURN_ROW_ID() \
   { store_expr_str(yytext, yyleng, yytext + yyleng, yyscanner); return ROW_ID; }
+
+#define RETURN_REVERSED_EXPR_FUNC() \
+  { store_expr_str(yytext, yyleng, yytext + yyleng, yyscanner); return REVERSED_EXPR_FUNC; }
+
 %}
 
 %x                      in_c_comment
@@ -59,8 +63,10 @@ multi_byte_left_parenthesis   [\uff08]
 multi_byte_right_parenthesis  [\uff09]
 space                   [ \t\n\r\f]
 identifer               ([A-Za-z0-9$_]*)
-int_num                 [\-\+]?[0-9]+
-number      ([\-]?[0-9]+E[-+]?[0-9]+)|([\-]?[0-9]+"."[0-9]*E[-+]?[0-9]+)|([\-]?"."[0-9]+E[-+]?[0-9]+)|([\-]?[0-9]+"."[0-9]*)|([\-]?"."[0-9]+)
+
+/* limit the length of int_num from 1 to 17 in case of int64_t out of bound, 17 -> [ ( length of 2^64 ) - 2 ]*/
+int_num                 [\-\+]?[0-9]{1,17}
+number      ([\-]?[0-9]+E[-+]?[0-9]+)|([\-]?[0-9]+"."[0-9]*E[-+]?[0-9]+)|([\-]?"."[0-9]+E[-+]?[0-9]+)|([\-]?[0-9]+"."[0-9]*)|([\-]?"."[0-9]+)|([\-\+]?[0-9]{18,})
 
 non_newline             [^\n\r]
 sql_comment             ("--"{space}+{non_newline}*)|(#{non_newline}*)
@@ -113,6 +119,9 @@ AND       { return AND_OP; }
 OR        { return OR_OP; }
 "||"      { return OR_OP; }
 IN        { return IN; }
+IS        { return IS; }
+NULL      { return TOKEN_NULL; }
+NOT       { return NOT; }
 "="       { return COMP_EQ; }
 "<=>"     { return COMP_NSEQ; }
 ">="      { return COMP_GE; }
@@ -122,6 +131,7 @@ IN        { return IN; }
 "!="|"<>" { return COMP_NE; }
 "?"       { return PLACE_HOLDER; }
 ":"{int_num} { store_pos_place_holder(yytext + 1, yyscanner); return POS_PLACE_HOLDER; }
+"SYSDATE" { RETURN_REVERSED_EXPR_FUNC();}
 
 {int_num}              { RETURN_INT_VAL(); }
 {number}               { RETURN_NUMBER_VAL(); }
diff --git a/src/obproxy/opsql/expr_parser/ob_expr_parser.y b/src/obproxy/opsql/expr_parser/ob_expr_parser.y
index 06489e71..e190314c 100644
--- a/src/obproxy/opsql/expr_parser/ob_expr_parser.y
+++ b/src/obproxy/opsql/expr_parser/ob_expr_parser.y
@@ -55,8 +55,8 @@ static inline void add_token_list(ObProxyTokenList *list, ObProxyTokenList *next
   if (OB_ISNULL(list) || OB_ISNULL(next_list)) {
   } else if (NULL != list->tail_
              && NULL  != next_list->head_
-             && (TOKEN_INT_VAL == list->tail_->type_ || TOKEN_STR_VAL == list->tail_->type_)
-             && (TOKEN_INT_VAL == next_list->head_->type_ || TOKEN_STR_VAL == next_list->head_->type_)) {
+             && (TOKEN_INT_VAL == list->tail_->type_ || TOKEN_STR_VAL == list->tail_->type_ || TOKEN_FUNC == list->tail_->type_)
+             && (TOKEN_INT_VAL == next_list->head_->type_ || TOKEN_STR_VAL == next_list->head_->type_ || TOKEN_FUNC == next_list->head_->type_)) {
     list->tail_->next_ = next_list->head_;
     list->tail_ = next_list->head_;
     list->tail_->next_ = NULL;
@@ -128,11 +128,18 @@ static inline void set_part_key_column_idx(ObExprParseResult *result, ObProxyPar
   for (i = 0; i < result->part_key_info_.key_num_; ++i) {
     if (is_equal(column_name, &result->part_key_info_.part_keys_[i].name_)) {
       result->part_key_info_.part_keys_[i].idx_ = result->column_idx_;
-      break;
+      result->part_key_info_.part_keys_[i].is_exist_in_sql_ = true;
     }
   }
 }
 
+static inline void init_part_key_all_match(ObExprParseResult *result)
+{
+  for (int64_t i = 0; i < result->part_key_info_.key_num_; ++i) {
+      result->part_key_info_.part_keys_[i].is_exist_in_sql_ = true;
+  }
+}
+
 #define malloc_node(node, result, type)                                                       \
   do {                                                                                        \
     if (OB_ISNULL(node = ((ObProxyTokenNode *)obproxy_parse_malloc(sizeof(ObProxyTokenNode),  \
@@ -167,21 +174,13 @@ static inline void set_part_key_column_idx(ObExprParseResult *result, ObProxyPar
   do {                                                                                          \
     if (NULL == relation) {                                                                     \
     } else {                                                                                    \
-      int64_t new_mask = get_mask(relation->type_, relation->level_);                           \
-      bool has_rowid = result->has_rowid_;                                                      \
-      if (((result->cur_mask_ | new_mask) != result->cur_mask_)                                 \
-          || (has_rowid                                                                         \
-              && is_equal_to_rowid(&relation->left_value_->column_node_->column_name_))) {      \
+      if (relation->level_ != PART_KEY_LEVEL_ZERO) {                                            \
         if (result->relation_info_.relation_num_ < OBPROXY_MAX_RELATION_NUM) {                  \
           result->relation_info_.relations_[result->relation_info_.relation_num_++] = relation; \
-          result->cur_mask_ = (result->cur_mask_ | new_mask);                                   \
         } else {                                                                                \
           /* YYACCEPT; */                                                                       \
         }                                                                                       \
       }                                                                                         \
-      if ((result->cur_mask_ & result->target_mask_) == result->target_mask_) {                 \
-        /* YYACCEPT; */                                                                              \
-      }                                                                                         \
     }                                                                                           \
   } while(0)                                                                                    \
 
@@ -251,6 +250,92 @@ static inline void add_relation(ObExprParseResult *result,
   }
 }
 
+static inline void set_relation_part_with_column_idx(int64_t idx_in_schema_columns, 
+                                                     ObExprParseResult *result, 
+                                                     ObProxyPartKeyLevel *level, 
+                                                     int64_t *first_part_column_idx, 
+                                                     int64_t *second_part_column_idx) 
+{
+  if (OB_ISNULL(level) && OB_ISNULL(first_part_column_idx) && 
+      OB_ISNULL(second_part_column_idx) && OB_ISNULL(result)) {
+    // do nothing
+  } else {
+    *level = PART_KEY_LEVEL_ZERO;
+    *first_part_column_idx = 0;
+    *second_part_column_idx = 0;
+    bool is_level_one = false;
+    bool is_level_two = false;
+    for (int i = 0; i < result->part_key_info_.key_num_; i++) {
+      // make sure the part_key exist in sql to avoid the uninitialized idx_
+      if (idx_in_schema_columns == result->part_key_info_.part_keys_[i].idx_ && result->part_key_info_.part_keys_[i].is_exist_in_sql_) {
+        if (result->part_key_info_.part_keys_[i].level_ == PART_KEY_LEVEL_ONE) {
+          is_level_one = true;
+          *first_part_column_idx = result->part_key_info_.part_keys_[i].idx_in_part_columns_;
+        } else if (result->part_key_info_.part_keys_[i].level_ == PART_KEY_LEVEL_TWO) {
+          is_level_two = true;
+          *second_part_column_idx = result->part_key_info_.part_keys_[i].idx_in_part_columns_;
+        }
+      }
+    }
+    if (is_level_one) {
+      *level = PART_KEY_LEVEL_ONE;
+    }
+    if (is_level_two) {
+      *level = PART_KEY_LEVEL_TWO;
+    }
+    if (is_level_one && is_level_two) {
+      *level = PART_KEY_LEVEL_BOTH;
+    }
+  }
+}
+
+static inline void set_relation_part_with_column_name(ObProxyParseString *column,
+                                                      ObExprParseResult *result,
+                                                      ObProxyPartKeyLevel *level,
+                                                      int64_t *first_part_column_idx,
+                                                      int64_t *second_part_column_idx) 
+{
+  if (OB_ISNULL(column)
+      || OB_ISNULL(result)
+      || OB_ISNULL(level)
+      || OB_ISNULL(first_part_column_idx)
+      || OB_ISNULL(second_part_column_idx)) {
+    // do nothing
+  } else if (result->has_rowid_
+             && is_equal_to_rowid(column)) {
+    // handle rowid
+    *level = PART_KEY_LEVEL_ONE;
+    *first_part_column_idx = 0;
+    *second_part_column_idx = 0;
+  } else {
+    *level = PART_KEY_LEVEL_ZERO;
+    *first_part_column_idx = 0;
+    *second_part_column_idx = 0;
+    bool is_level_one = false;
+    bool is_level_two = false;
+    for (int i = 0; i < result->part_key_info_.key_num_; i++) {
+      if (is_equal(&result->part_key_info_.part_keys_[i].name_, column)) {
+        if (result->part_key_info_.part_keys_[i].level_ == PART_KEY_LEVEL_ONE) {
+          is_level_one = true;
+          *first_part_column_idx = result->part_key_info_.part_keys_[i].idx_in_part_columns_;
+        } else if (result->part_key_info_.part_keys_[i].level_ == PART_KEY_LEVEL_TWO) {
+          is_level_two = true;
+          *second_part_column_idx = result->part_key_info_.part_keys_[i].idx_in_part_columns_;
+        }
+      }
+    }
+    if (is_level_one) {
+      *level = PART_KEY_LEVEL_ONE;
+    }
+    if (is_level_two) {
+      *level = PART_KEY_LEVEL_TWO;
+    }
+    if (is_level_one && is_level_two) {
+      *level = PART_KEY_LEVEL_BOTH;
+    }
+  }
+}
+
 
 static inline ObProxyRelationExpr *get_relation(ObExprParseResult *result,
                                                 ObProxyTokenList *left_value,
@@ -261,25 +346,25 @@ static inline ObProxyRelationExpr *get_relation(ObExprParseResult *result,
   ObProxyTokenList *tmp_left = NULL;
   ObProxyTokenList *tmp_right = NULL;
   ObProxyFunctionType tmp_type = F_NONE;
-  ObProxyPartKeyLevel tmp_level = PART_KEY_LEVEL_ZERO;
   int64_t tmp_column_idx_ = -1;
+  ObProxyParseString *tmp_column = NULL;
 
   if (NULL != left_value->column_node_
       && TOKEN_COLUMN == left_value->column_node_->type_
       && left_value->column_node_->part_key_idx_ >= 0) {
     tmp_left = left_value;
-    tmp_level = result->part_key_info_.part_keys_[left_value->column_node_->part_key_idx_].level_;
     tmp_right = right_value;
     tmp_type = type;
     tmp_column_idx_ = left_value->column_node_->part_key_idx_;
+    tmp_column = &left_value->column_node_->column_name_;
   } else if (NULL != right_value->column_node_
              && TOKEN_COLUMN == right_value->column_node_->type_
              && right_value->column_node_->part_key_idx_ >= 0) {
     tmp_left = right_value;
-    tmp_level = result->part_key_info_.part_keys_[right_value->column_node_->part_key_idx_].level_;
     tmp_right = left_value;
     tmp_type = get_reverse_func(type);
     tmp_column_idx_ = right_value->column_node_->part_key_idx_;
+    tmp_column = &right_value->column_node_->column_name_;
   }
 
   if (NULL == tmp_left || NULL == tmp_right || F_COMP_NE == tmp_type) {
@@ -292,7 +377,11 @@ static inline ObProxyRelationExpr *get_relation(ObExprParseResult *result,
     relation->left_value_ = tmp_left;
     relation->type_ = tmp_type;
     relation->right_value_ = tmp_right;
-    relation->level_ = tmp_level;
+    set_relation_part_with_column_name(tmp_column,
+                                       result,
+                                       &relation->level_,
+                                       &relation->first_part_column_idx_,
+                                       &relation->second_part_column_idx_);
   }
   return relation;
 }
@@ -306,14 +395,20 @@ static inline ObProxyRelationExpr *get_values_relation(ObExprParseResult *result
   } else {
     int64_t i = 0;
     for (i = 0; i < result->part_key_info_.key_num_; ++i) {
-      if (result->values_list_idx_ == result->part_key_info_.part_keys_[i].idx_) {
+      // make sure the part_key exist in sql to avoid the uninitialized idx_
+      if (result->values_list_idx_ == result->part_key_info_.part_keys_[i].idx_ && result->part_key_info_.part_keys_[i].is_exist_in_sql_) {
         if (OB_ISNULL(relation = ((ObProxyRelationExpr *)obproxy_parse_malloc(
                                         sizeof(ObProxyRelationExpr), result->malloc_pool_)))) {
         } else {
           relation->column_idx_ = i;
           relation->type_ = F_COMP_EQ;
           relation->right_value_ = right_value;
-          relation->level_ = result->part_key_info_.part_keys_[i].level_;
+          relation->left_value_ = NULL;
+          set_relation_part_with_column_idx(result->values_list_idx_, 
+                                            result,
+                                            &relation->level_, 
+                                            &relation->first_part_column_idx_, 
+                                            &relation->second_part_column_idx_);        
         }
         break;
       }
@@ -363,12 +458,12 @@ static inline void add_right_relation_value(ObExprParseResult *result,
 %token DUMMY_SELECT_CLAUSE DUMMY_INSERT_CLAUSE
  /* reserved keyword */
 %token WHERE AS VALUES SET END_WHERE JOIN
-%token AND_OP OR_OP IN ON BETWEEN
+%token AND_OP OR_OP IN ON BETWEEN IS TOKEN_NULL NOT
 %token COMP_EQ COMP_NSEQ COMP_GE COMP_GT COMP_LE COMP_LT COMP_NE
 %token PLACE_HOLDER
 %token END_P ERROR IGNORED_WORD
  /* type token */
-%token<str> NAME_OB STR_VAL ROW_ID
+%token<str> NAME_OB STR_VAL ROW_ID REVERSED_EXPR_FUNC
 %token<num> INT_VAL POS_PLACE_HOLDER
 %type<func> comp
 %type<node> token opt_column
@@ -422,6 +517,8 @@ bool_pri: expr comp expr { add_relation(result, $1, $2,$3); $$ = get_relation(re
           add_relation(result, $1, F_COMP_LE, $5);
           $$ = NULL;
         }
+        | expr IS TOKEN_NULL { $$ = NULL; }
+        | expr IS NOT TOKEN_NULL { $$ = NULL; }
 
 comp: COMP_EQ   { $$ = F_COMP_EQ; }
     | COMP_NSEQ { $$ = F_COMP_NSEQ; }
@@ -469,6 +566,11 @@ token:
        $$->part_key_idx_ = get_part_key_idx(&$1, &$3, &$5, result);
        $$->column_name_ = $5;
      }
+     | REVERSED_EXPR_FUNC 
+     {
+       malloc_node($$, result, TOKEN_FUNC);
+       $$->str_value_ = $1;
+     } 
      | NAME_OB '(' token_list ')'
      {
        malloc_node($$, result, TOKEN_FUNC);
@@ -518,7 +620,7 @@ values_expr_lists: '(' values_expr_list ')'
                    result->multi_param_values_++;
                  }
 
-opt_column_list: /* empty */
+opt_column_list: /* empty */ { init_part_key_all_match(result);}
                | '(' column_list ')'
 
  /* column_list: NAME_OB { result->column_idx_ = 0; set_part_key_column_idx(result, &$1); }
diff --git a/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_lex.c b/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_lex.c
index e5532cd5..4be99343 100644
--- a/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_lex.c
+++ b/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_lex.c
@@ -348,8 +348,8 @@ static void yy_fatal_error (yyconst char msg[] ,yyscan_t yyscanner );
 	yyg->yy_hold_char = *yy_cp; \
 	yyg->yy_c_buf_p = yy_cp;
 
-#define YY_NUM_RULES 57
-#define YY_END_OF_BUFFER 58
+#define YY_NUM_RULES 61
+#define YY_END_OF_BUFFER 62
 /* This struct is not used in this scanner,
    but its presence is necessary. */
 struct yy_trans_info
@@ -357,28 +357,37 @@ struct yy_trans_info
 	flex_int32_t yy_verify;
 	flex_int32_t yy_nxt;
 	};
-static yyconst flex_int16_t yy_accept[187] =
+static yyconst flex_int16_t yy_accept[269] =
     {   0,
-       30,   30,    0,    0,    0,    0,    0,    0,    0,    0,
-       58,   56,   31,   31,   35,   46,   31,   30,   35,   35,
-       40,   33,   34,   35,   32,   35,   35,   35,   28,   35,
-       24,   19,   22,   26,   30,   30,   30,   30,   30,   30,
-       30,   30,   30,   30,   30,   30,   30,   52,   35,   56,
-       56,   39,   38,   39,   41,   42,   57,   47,   48,   57,
-       54,   55,   31,    0,   25,   31,   30,   15,   28,    0,
-        0,   28,   29,   36,   29,   28,   30,    0,   27,   23,
-       21,   30,    2,   30,   30,   30,   30,   18,   30,   30,
-       12,   16,   30,   30,   30,   30,   17,   33,   34,   32,
-
-        0,   37,   41,    0,    0,   43,    0,    0,   44,   47,
-        0,   49,    0,    0,    0,   50,   54,   53,   31,    0,
-        0,    0,   29,    0,    0,   29,   20,   14,   30,    6,
-       30,   30,   30,   30,   30,    5,   30,   30,   45,    0,
-       45,    0,   51,    0,   51,    0,   31,   31,   31,   29,
-        0,   29,    0,   29,   30,   30,   30,   11,   30,   30,
-       30,   30,    0,    0,    0,    0,   30,    8,   30,    7,
-       10,    4,    1,    0,    0,   45,    0,    0,    0,   51,
-        0,   30,    9,    3,   13,    0
+       34,   34,    0,    0,    0,    0,    0,    0,    0,    0,
+       62,   60,   35,   35,   39,   50,   35,   34,   39,   39,
+       44,   37,   38,   39,   36,   39,   39,   39,   32,   39,
+       27,   22,   25,   29,   34,   34,   34,   34,   34,   34,
+       34,   34,   34,   34,   34,   34,   34,   34,   56,   39,
+       60,   60,   43,   42,   43,   45,   46,   61,   51,   52,
+       61,   58,   59,   35,    0,   28,   35,   34,   15,   32,
+        0,    0,   32,   33,   40,   33,   32,   34,    0,   30,
+       26,   24,   34,    2,   34,   34,   34,   34,   18,   19,
+       34,   34,   34,   34,   12,   16,   34,   34,   34,   34,
+
+       34,   17,   37,   38,   36,    0,   41,   45,    0,    0,
+       47,    0,    0,   48,   51,    0,   53,    0,    0,    0,
+       54,   58,   57,   32,   35,    0,   32,    0,    0,   33,
+        0,   32,    0,   33,   30,   23,   14,   34,    6,   34,
+       34,   34,   34,   21,   34,   34,    5,   34,   34,   34,
+       49,    0,   49,    0,   55,    0,   55,    0,   32,   35,
+       35,   35,   32,   33,    0,   33,    0,   33,   32,   30,
+       34,   34,   34,   11,   34,   20,   34,   34,   34,   34,
+        0,    0,    0,    0,   32,   32,   32,   30,   34,    8,
+       34,    7,   10,   34,    4,    1,    0,    0,   49,    0,
+
+        0,    0,   55,    0,   32,   32,   32,   30,   34,    9,
+       34,    3,   32,   32,   32,   30,   13,   31,   32,   32,
+       32,   30,   32,   32,   32,   30,   32,   32,   32,   30,
+       32,   32,   32,   30,   32,   32,   32,   30,   32,   32,
+       32,   30,   32,   32,   32,   30,   32,   32,   32,   30,
+       32,   32,   32,   30,   32,   32,   32,   30,   32,   32,
+       33,   30,   33,   33,   33,   33,   33,    0
     } ;
 
 static yyconst flex_int32_t yy_ec[256] =
@@ -391,17 +400,17 @@ static yyconst flex_int32_t yy_ec[256] =
        20,   20,   20,   20,   20,   20,   20,   21,    9,   22,
        23,   24,   25,    9,   26,   27,    8,   28,   29,   30,
        31,   32,   33,   34,    8,   35,   36,   37,   38,   39,
-        8,   40,   41,   42,   43,   44,   45,    8,    8,    8,
-        1,   46,    1,    9,    8,   47,   48,   49,    8,   50,
+        8,   40,   41,   42,   43,   44,   45,    8,   46,    8,
+        1,   47,    1,    9,    8,   48,   49,   50,    8,   51,
 
-       51,   52,   53,   54,   55,   56,    8,   57,   58,   59,
-       60,   61,    8,   62,   63,   64,   65,   66,   67,    8,
-        8,    8,    1,   68,    1,    9,    1,    1,    1,    1,
+       52,   53,   54,   55,   56,   57,    8,   58,   59,   60,
+       61,   62,    8,   63,   64,   65,   66,   67,   68,    8,
+       69,    8,    1,   70,    1,    9,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-       69,    1,   70,    1,    1,    1,    1,   71,   72,    1,
-        1,   73,    1,    1,    1,    1,    1,    1,    1,    1,
+       71,    1,   72,    1,    1,    1,    1,   73,   74,    1,
+        1,   75,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
 
@@ -413,140 +422,174 @@ static yyconst flex_int32_t yy_ec[256] =
         1,    1,    1,    1,    1
     } ;
 
-static yyconst flex_int32_t yy_meta[74] =
+static yyconst flex_int32_t yy_meta[76] =
     {   0,
         1,    1,    2,    2,    1,    3,    1,    4,    1,    1,
         5,    1,    1,    1,    1,    1,    1,    1,    1,    4,
         1,    1,    1,    1,    1,    4,    4,    4,    4,    4,
         4,    4,    4,    4,    4,    4,    4,    4,    4,    4,
-        4,    4,    4,    4,    4,    6,    7,    4,    4,    4,
+        4,    4,    4,    4,    4,    4,    6,    7,    4,    4,
         4,    4,    4,    4,    4,    4,    4,    4,    4,    4,
-        4,    4,    4,    4,    4,    4,    4,    1,    1,    1,
-        1,    1,    1
+        4,    4,    4,    4,    4,    4,    4,    4,    4,    1,
+        1,    1,    1,    1,    1
     } ;
 
-static yyconst flex_int16_t yy_base[203] =
+static yyconst flex_int16_t yy_base[285] =
     {   0,
-        0,    0,   71,   72,   65,   66,   72,   73,  312,  311,
-      357,  500,   78,   85,  333,  500,    0,    0,  500,  345,
-      500,  500,  500,  334,  500,   73,  333,  338,   74,   80,
-       60,  500,  328,  500,   61,   70,   63,   64,   79,   69,
-       69,   75,   73,   71,   85,   89,   84,  500,  282,  280,
-       68,  500,  500,  103,    0,  141,    0,    0,  153,    0,
-        0,  301,  147,  278,  500,    0,    0,  500,  326,  159,
-      325,  146,  145,  500,  147,  151,  162,  324,  323,  317,
-      500,  118,    0,  130,  133,  140,  137,    0,  150,  148,
-        0,    0,  140,  144,  152,  160,  500,  500,  500,  500,
-
-      174,  500,    0,  188,  329,  500,  321,  268,  500,    0,
-      211,  500,  330,  318,  265,  500,    0,  500,  216,  264,
-      206,  210,  204,  214,  307,  303,  500,    0,  187,    0,
-      193,  204,  201,  206,  207,    0,  198,  202,  500,  296,
-      292,  241,  500,  290,  280,  244,  130,  247,  249,  264,
-      215,  192,  184,  181,  227,  226,  229,    0,  225,  240,
-      240,  241,  270,   84,  273,   73,  242,    0,  251,    0,
-        0,  242,    0,  291,  295,  297,  308,  311,  318,  322,
-      326,  272,    0,    0,    0,  500,  395,  402,  409,  416,
-      423,   92,  430,  437,  444,  451,  458,  464,  471,  478,
-
-      485,  492
+        0,    0,   73,   74,   67,   68,   74,   75,  611,  610,
+      631,  660,   80,   87,  601,  660,    0,    0,  660,  598,
+      660,  660,  660,  585,  660,   75,  574,  579,   76,   82,
+       62,  660,  560,  660,   63,   72,   65,   66,   81,   71,
+       71,   77,   73,   80,   75,   96,   92,  105,  660,  482,
+      480,   71,  660,  660,  133,    0,  152,    0,    0,  164,
+        0,    0,  501,  170,  477,  660,    0,    0,  660,  527,
+      173,  526,  160,  133,  660,  159,  164,  175,  524,  523,
+      518,  660,  110,    0,  122,  143,  148,  147,    0,    0,
+      161,  160,  155,  163,    0,    0,  154,  159,  161,  168,
+
+      175,  660,  660,  660,  660,  186,  660,    0,  226,  530,
+      660,  522,  467,  660,    0,  230,  660,  531,  519,  464,
+      660,    0,  660,  514,  236,  462,  225,  193,  231,  227,
+      235,  239,  512,  511,  509,  660,    0,  197,    0,  206,
+      220,  221,  227,    0,  226,  229,    0,  235,  221,  226,
+      660,  515,  513,  267,  660,  517,  508,  271,  490,  146,
+      290,  292,  270,  489,  484,  483,  481,  478,  280,  470,
+      251,  243,  265,    0,  262,    0,  278,  282,  281,  282,
+      310,  414,  313,  400,  450,  306,  310,  440,  289,    0,
+      289,    0,    0,  281,  295,    0,  341,  345,  361,  363,
+
+      347,  367,  351,  372,  438,  359,  362,  437,  300,    0,
+      354,    0,  434,  367,  372,  421,    0,    0,  416,  375,
+      379,  413,  405,  380,  392,  403,  402,  397,  400,  393,
+      387,  410,  417,  385,  383,  422,  427,  382,  374,  430,
+      435,  369,  366,  443,  447,  348,  320,  448,  455,  258,
+      247,  460,  463,  211,  198,  468,  473,  195,  187,  476,
+      488,  660,  137,  493,  498,   99,  501,  660,  553,  560,
+      567,  574,  581,   94,  588,  595,  602,  609,  616,  622,
+      629,  636,  643,  650
     } ;
 
-static yyconst flex_int16_t yy_def[203] =
+static yyconst flex_int16_t yy_def[285] =
     {   0,
-      186,    1,  187,  187,  188,  188,  189,  189,  190,  190,
-      186,  186,  186,  186,  186,  186,  191,  192,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  192,  186,
-      186,  186,  186,  186,  192,  192,  192,  192,  192,  192,
-      192,  192,  192,  192,  192,  192,  192,  186,  186,  186,
-      186,  186,  186,  186,  193,  186,  194,  195,  186,  196,
-      197,  186,  186,  186,  186,  191,  192,  186,  186,  186,
-      186,  186,  186,  186,  186,  192,  192,  186,  186,  186,
-      186,  192,  192,  192,  192,  192,  192,  192,  192,  192,
-      192,  192,  192,  192,  192,  192,  186,  186,  186,  186,
-
-      186,  186,  193,  186,  198,  186,  186,  186,  186,  195,
-      186,  186,  199,  186,  186,  186,  197,  186,  200,  186,
-      186,  186,  186,  186,  186,  192,  186,  192,  192,  192,
-      192,  192,  192,  192,  192,  192,  192,  192,  186,  198,
-      198,  186,  186,  199,  199,  186,  200,  200,  200,  186,
-      186,  186,  186,  186,  192,  192,  192,  192,  192,  192,
-      192,  192,  201,  186,  202,  186,  192,  192,  192,  192,
-      192,  192,  192,  201,  201,  201,  201,  202,  202,  202,
-      202,  192,  192,  192,  192,    0,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-
-      186,  186
+      268,    1,  269,  269,  270,  270,  271,  271,  272,  272,
+      268,  268,  268,  268,  268,  268,  273,  274,  268,  268,
+      268,  268,  268,  268,  268,  268,  268,  268,  274,  268,
+      268,  268,  268,  268,  274,  274,  274,  274,  274,  274,
+      274,  274,  274,  274,  274,  274,  274,  274,  268,  268,
+      268,  268,  268,  268,  268,  275,  268,  276,  277,  268,
+      278,  279,  268,  268,  268,  268,  273,  274,  268,  268,
+      268,  268,  268,  268,  268,  268,  274,  274,  268,  268,
+      268,  268,  274,  274,  274,  274,  274,  274,  274,  274,
+      274,  274,  274,  274,  274,  274,  274,  274,  274,  274,
+
+      274,  268,  268,  268,  268,  268,  268,  275,  268,  280,
+      268,  268,  268,  268,  277,  268,  268,  281,  268,  268,
+      268,  279,  268,  268,  282,  268,  268,  268,  268,  268,
+      268,  274,  268,  274,  268,  268,  274,  274,  274,  274,
+      274,  274,  274,  274,  274,  274,  274,  274,  274,  274,
+      268,  280,  280,  268,  268,  281,  281,  268,  268,  282,
+      282,  282,  268,  268,  268,  268,  268,  268,  274,  268,
+      274,  274,  274,  274,  274,  274,  274,  274,  274,  274,
+      283,  268,  284,  268,  268,  268,  274,  268,  274,  274,
+      274,  274,  274,  274,  274,  274,  283,  283,  283,  283,
+
+      284,  284,  284,  284,  268,  268,  274,  268,  274,  274,
+      274,  274,  268,  268,  274,  268,  274,  274,  268,  268,
+      274,  268,  268,  268,  274,  268,  268,  268,  274,  268,
+      268,  268,  274,  268,  268,  268,  274,  268,  268,  268,
+      274,  268,  268,  268,  274,  268,  268,  268,  274,  268,
+      268,  268,  274,  268,  268,  268,  274,  268,  268,  268,
+      274,  268,  268,  268,  274,  268,  268,    0,  268,  268,
+      268,  268,  268,  268,  268,  268,  268,  268,  268,  268,
+      268,  268,  268,  268
     } ;
 
-static yyconst flex_int16_t yy_nxt[574] =
+static yyconst flex_int16_t yy_nxt[736] =
     {   0,
        12,   13,   14,   13,   15,   16,   17,   18,   19,   20,
        21,   22,   23,   19,   24,   25,   26,   27,   28,   29,
        30,   31,   32,   33,   34,   35,   36,   18,   18,   37,
-       38,   39,   40,   41,   42,   18,   18,   43,   18,   44,
-       45,   18,   18,   46,   47,   12,   48,   35,   36,   18,
-       18,   37,   38,   39,   40,   41,   42,   18,   18,   43,
-       18,   44,   45,   18,   18,   46,   47,   49,   50,   51,
-       12,   12,   12,   53,   53,   56,   56,   59,   59,   63,
-       63,   63,   80,   65,   54,   54,   63,   63,   63,   70,
-       71,   75,   72,   76,   78,   67,   78,   82,   84,   79,
-
-       85,   83,   77,   86,   87,   88,   89,   90,   93,   91,
-       57,   57,   92,   94,   95,   96,  101,   60,   60,   82,
-       84,  102,   85,   83,   77,   86,   87,   88,   89,   90,
-       93,   91,  186,  186,   92,   94,   95,   96,   98,   99,
-      100,  165,  104,  104,  104,  128,   64,  105,   63,   63,
-       63,  106,  163,   64,  111,  111,  111,  107,  112,  113,
-      119,  119,  119,   75,   73,   72,  123,  128,   75,  114,
-       76,  129,  130,  122,  121,  124,  125,  131,  125,   77,
-      132,  126,  133,  134,  135,  136,  137,  101,  138,  104,
-      104,  104,  102,  129,  130,  122,  121,  124,  139,  131,
-
-      154,   77,  132,  154,  133,  134,  135,  136,  137,  108,
-      138,  152,  111,  111,  111,   64,  143,  148,  119,  119,
-      125,  115,  125,  123,  151,  150,  151,  120,  153,  152,
-      153,  155,  124,  154,  152,  156,  157,  158,  159,  160,
-      161,  162,  163,  163,  163,  165,  165,  165,  148,  119,
-      119,  186,  186,  155,  124,  167,  108,  156,  157,  158,
-      159,  160,  161,  162,  168,  169,  170,  171,  172,  173,
-      182,  175,  163,  163,  179,  165,  165,  167,  180,  115,
-      176,  183,  184,  150,  149,  145,  168,  169,  170,  171,
-      172,  173,  182,  186,  186,  145,  175,  163,  163,  186,
-
-      186,  176,  141,  183,  184,  176,  141,  176,  185,  164,
-      186,  186,  166,  186,  186,  149,  180,  148,  176,  179,
-      165,  165,  126,  180,  186,  186,  150,  180,  186,  186,
-      185,  180,  119,  111,  146,  145,  104,  142,  177,  141,
-      127,  181,   79,   79,   73,   69,   63,  118,   63,   97,
-       81,   74,   73,   69,   68,   65,  186,   62,   62,  186,
-      186,  186,  186,  177,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  175,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  181,  186,  186,  186,
-      186,  186,  186,  186,  179,   52,   52,   52,   52,   52,
-
-       52,   52,   55,   55,   55,   55,   55,   55,   55,   58,
-       58,   58,   58,   58,   58,   58,   61,   61,   61,   61,
-       61,   61,   61,   66,  186,   66,   66,   66,   66,   66,
-      103,  103,  103,  103,  186,  186,  103,  109,  109,  109,
-      109,  109,  109,  109,  110,  110,  186,  110,  110,  186,
-      110,  116,  116,  116,  116,  116,  116,  116,  117,  117,
-      117,  117,  117,  117,  140,  186,  140,  140,  140,  140,
-      140,  144,  186,  144,  144,  144,  144,  144,  147,  147,
-      147,  147,  147,  147,  147,  174,  174,  174,  174,  174,
-      174,  174,  178,  178,  178,  178,  178,  178,  178,   11,
-
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186
+       38,   39,   40,   41,   42,   18,   43,   44,   18,   45,
+       46,   18,   18,   47,   48,   18,   12,   49,   35,   36,
+       18,   18,   37,   38,   39,   40,   41,   42,   18,   43,
+       44,   18,   45,   46,   18,   18,   47,   48,   18,   50,
+       51,   52,   12,   12,   12,   54,   54,   57,   57,   60,
+       60,   64,   64,   64,   81,   66,   55,   55,   64,   64,
+       64,   71,   72,   76,   73,   77,   79,   68,   79,   83,
+
+       85,   80,   86,   84,   78,   87,   88,   89,   91,   92,
+       93,   90,   97,   58,   58,   94,   95,  100,  266,   96,
+       61,   61,   83,   85,   98,   86,   84,   78,   87,   88,
+       89,   91,   92,   93,   90,   97,  101,  137,   94,   95,
+      100,   99,   96,  103,  104,  105,  106,   98,  268,  268,
+       65,  107,   74,  109,  109,  109,  266,   65,  110,  101,
+      137,  129,  111,  138,   99,  116,  116,  116,  112,  117,
+      118,   64,   64,   64,  125,  125,  125,   76,  130,  127,
+      119,   76,  139,  132,  129,  140,  138,  131,  128,  133,
+      141,  133,   78,  142,  134,  143,  144,  145,  146,  106,
+
+      147,  148,  149,  150,  107,  139,  263,  133,  140,  133,
+      131,  128,  164,  141,  262,   78,  142,  259,  143,  144,
+      145,  146,  113,  147,  148,  149,  150,  109,  109,  109,
+      258,  116,  116,  116,  120,  155,  151,  161,  125,  125,
+       65,  171,   76,  126,  163,  165,  130,  165,  172,  167,
+      166,  167,  173,  128,  168,  131,   76,  174,  169,  175,
+      176,  177,  178,  179,  171,  180,  255,   78,  181,  181,
+      181,  172,  183,  183,  183,  173,  128,  254,  131,  189,
+      174,  190,  175,  176,  177,  178,  179,   76,  180,  186,
+       78,  161,  125,  125,  268,  268,  113,   76,  128,  187,
+
+      120,  191,  189,  192,  190,  193,  162,  194,   78,  195,
+      196,  198,  181,  181,  202,  183,  183,  209,  203,  210,
+      199,  128,  211,   76,  191,  206,  192,   76,  193,  207,
+      194,   78,  195,  196,  128,  212,  217,  182,   78,  251,
+      209,  184,  210,  268,  268,  211,  198,  181,  181,  268,
+      268,  199,  203,  268,  268,  199,  203,  128,  212,  217,
+      162,   78,  161,  268,  268,  268,  268,  250,  202,  183,
+      183,  199,  203,  199,  268,  268,   76,  203,  214,   76,
+      200,  215,  218,  204,   76,  247,  220,  128,  246,   76,
+       78,  221,   76,  243,  224,  128,   76,   76,  225,  228,
+
+       78,  242,  239,  128,  238,  218,  235,   78,  128,   76,
+      128,  229,  234,   78,   76,  200,  232,   76,  128,  233,
+       78,  231,  230,   78,  227,  128,  128,   76,   78,  236,
+       78,  128,  226,  198,   76,  223,  237,  204,  128,   76,
+      222,  240,  202,   78,   76,   78,  241,   76,  128,  244,
+      128,   78,   76,  219,  245,   78,  216,  213,  128,  208,
+       76,  128,  248,   78,   76,   76,  249,  252,   78,  205,
+      183,  128,   76,  128,  253,   78,  128,   76,   78,  256,
+       76,  128,  257,   78,  181,   76,   78,  260,  128,  188,
+       76,   78,  261,   76,  128,  264,  128,  168,   78,  128,
+
+      168,   78,  166,  166,  128,   76,   78,  265,  164,  185,
+       76,  128,  267,  157,   78,   76,   78,  265,   76,  128,
+      267,  128,  157,  153,   78,  153,   78,  128,  170,  128,
+      134,  164,  125,  159,  116,  158,  157,  109,  154,   78,
+      153,  136,  135,   80,  128,   74,  124,   64,  123,   78,
+       64,  102,  128,   53,   53,   53,   53,   53,   53,   53,
+       56,   56,   56,   56,   56,   56,   56,   59,   59,   59,
+       59,   59,   59,   59,   62,   62,   62,   62,   62,   62,
+       62,   67,   82,   67,   67,   67,   67,   67,  108,  108,
+      108,  108,   75,   74,  108,  114,  114,  114,  114,  114,
+
+      114,  114,  115,  115,   70,  115,  115,   69,  115,  121,
+      121,  121,  121,  121,  121,  121,  122,  122,  122,  122,
+      122,  122,  152,   66,  152,  152,  152,  152,  152,  156,
+      268,  156,  156,  156,  156,  156,  160,  160,  160,  160,
+      160,  160,  160,  197,  197,  197,  197,  197,  197,  197,
+      201,  201,  201,  201,  201,  201,  201,   63,   63,   11,
+      268,  268,  268,  268,  268,  268,  268,  268,  268,  268,
+      268,  268,  268,  268,  268,  268,  268,  268,  268,  268,
+      268,  268,  268,  268,  268,  268,  268,  268,  268,  268,
+      268,  268,  268,  268,  268,  268,  268,  268,  268,  268,
+
+      268,  268,  268,  268,  268,  268,  268,  268,  268,  268,
+      268,  268,  268,  268,  268,  268,  268,  268,  268,  268,
+      268,  268,  268,  268,  268,  268,  268,  268,  268,  268,
+      268,  268,  268,  268,  268
     } ;
 
-static yyconst flex_int16_t yy_chk[574] =
+static yyconst flex_int16_t yy_chk[736] =
     {   0,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
@@ -555,62 +598,80 @@ static yyconst flex_int16_t yy_chk[574] =
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    3,    4,    5,    6,    7,    8,   13,
-       13,   13,   31,   31,    3,    4,   14,   14,   14,   26,
-       26,   29,   26,   29,   30,  192,   30,   35,   36,   30,
-
-       37,   35,   29,   38,   39,   40,   41,   42,   44,   43,
-        5,    6,   43,   45,   46,   47,   54,    7,    8,   35,
-       36,   54,   37,   35,   29,   38,   39,   40,   41,   42,
-       44,   43,  147,  147,   43,   45,   46,   47,   51,   51,
-       51,  166,   56,   56,   56,   82,   13,   56,   63,   63,
-       63,   56,  164,   14,   59,   59,   59,   56,   59,   59,
-       70,   70,   70,   72,   73,   72,   75,   82,   76,   59,
-       76,   84,   85,   73,   72,   75,   77,   86,   77,   76,
-       87,   77,   89,   90,   93,   94,   95,  101,   96,  104,
-      104,  104,  101,   84,   85,   73,   72,   75,  104,   86,
-
-      154,   76,   87,  153,   89,   90,   93,   94,   95,   56,
-       96,  152,  111,  111,  111,   63,  111,  119,  119,  119,
-      121,   59,  121,  123,  122,  121,  122,   70,  124,  122,
-      124,  129,  123,  124,  151,  131,  132,  133,  134,  135,
-      137,  138,  142,  142,  142,  146,  146,  146,  148,  148,
-      148,  149,  149,  129,  123,  155,  104,  131,  132,  133,
-      134,  135,  137,  138,  156,  157,  159,  160,  161,  162,
-      167,  163,  163,  163,  165,  165,  165,  155,  165,  111,
-      163,  169,  172,  150,  119,  145,  156,  157,  159,  160,
-      161,  162,  167,  174,  174,  144,  175,  175,  175,  176,
-
-      176,  174,  141,  169,  172,  175,  140,  176,  182,  142,
-      177,  177,  146,  178,  178,  148,  178,  149,  177,  179,
-      179,  179,  126,  179,  180,  180,  125,  180,  181,  181,
-      182,  181,  120,  115,  114,  113,  108,  107,  163,  105,
-       80,  165,   79,   78,   71,   69,   64,   62,   50,   49,
-       33,   28,   27,   24,   20,   15,   11,   10,    9,    0,
-        0,    0,    0,  175,    0,    0,    0,    0,    0,    0,
-        0,    0,    0,    0,    0,    0,  177,    0,    0,    0,
-        0,    0,    0,    0,    0,    0,  179,    0,    0,    0,
-        0,    0,    0,    0,  181,  187,  187,  187,  187,  187,
-
-      187,  187,  188,  188,  188,  188,  188,  188,  188,  189,
-      189,  189,  189,  189,  189,  189,  190,  190,  190,  190,
-      190,  190,  190,  191,    0,  191,  191,  191,  191,  191,
-      193,  193,  193,  193,    0,    0,  193,  194,  194,  194,
-      194,  194,  194,  194,  195,  195,    0,  195,  195,    0,
-      195,  196,  196,  196,  196,  196,  196,  196,  197,  197,
-      197,  197,  197,  197,  198,    0,  198,  198,  198,  198,
-      198,  199,    0,  199,  199,  199,  199,  199,  200,  200,
-      200,  200,  200,  200,  200,  201,  201,  201,  201,  201,
-      201,  201,  202,  202,  202,  202,  202,  202,  202,  186,
-
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186
+        1,    1,    1,    1,    1,    3,    4,    5,    6,    7,
+        8,   13,   13,   13,   31,   31,    3,    4,   14,   14,
+       14,   26,   26,   29,   26,   29,   30,  274,   30,   35,
+
+       36,   30,   37,   35,   29,   38,   39,   40,   41,   42,
+       43,   40,   45,    5,    6,   43,   44,   47,  266,   44,
+        7,    8,   35,   36,   46,   37,   35,   29,   38,   39,
+       40,   41,   42,   43,   40,   45,   48,   83,   43,   44,
+       47,   46,   44,   52,   52,   52,   55,   46,  160,  160,
+       13,   55,   74,   57,   57,   57,  263,   14,   57,   48,
+       83,   74,   57,   85,   46,   60,   60,   60,   57,   60,
+       60,   64,   64,   64,   71,   71,   71,   73,   76,   73,
+       60,   77,   86,   77,   74,   87,   85,   76,   73,   78,
+       88,   78,   77,   91,   78,   92,   93,   94,   97,  106,
+
+       98,   99,  100,  101,  106,   86,  259,  128,   87,  128,
+       76,   73,  128,   88,  258,   77,   91,  255,   92,   93,
+       94,   97,   57,   98,   99,  100,  101,  109,  109,  109,
+      254,  116,  116,  116,   60,  116,  109,  125,  125,  125,
+       64,  138,  127,   71,  127,  129,  130,  129,  140,  131,
+      129,  131,  141,  127,  131,  130,  132,  142,  132,  143,
+      145,  146,  148,  149,  138,  150,  251,  132,  154,  154,
+      154,  140,  158,  158,  158,  141,  127,  250,  130,  171,
+      142,  172,  143,  145,  146,  148,  149,  163,  150,  163,
+      132,  161,  161,  161,  162,  162,  109,  169,  163,  169,
+
+      116,  173,  171,  175,  172,  177,  125,  178,  169,  179,
+      180,  181,  181,  181,  183,  183,  183,  189,  183,  191,
+      181,  163,  194,  186,  173,  186,  175,  187,  177,  187,
+      178,  169,  179,  180,  186,  195,  209,  154,  187,  247,
+      189,  158,  191,  197,  197,  194,  198,  198,  198,  201,
+      201,  197,  201,  203,  203,  198,  203,  186,  195,  209,
+      161,  187,  162,  199,  199,  200,  200,  246,  202,  202,
+      202,  199,  202,  200,  204,  204,  206,  204,  206,  207,
+      181,  207,  211,  183,  214,  243,  214,  206,  242,  215,
+      207,  215,  220,  239,  220,  214,  221,  224,  221,  224,
+
+      215,  238,  235,  220,  234,  211,  231,  221,  224,  225,
+      206,  225,  230,  207,  228,  198,  228,  229,  214,  229,
+      225,  227,  226,  215,  223,  228,  220,  232,  229,  232,
+      221,  224,  222,  200,  233,  219,  233,  202,  232,  236,
+      216,  236,  204,  225,  237,  233,  237,  240,  228,  240,
+      236,  229,  241,  213,  241,  237,  208,  205,  240,  188,
+      244,  232,  244,  241,  245,  248,  245,  248,  233,  185,
+      184,  244,  249,  236,  249,  245,  248,  252,  237,  252,
+      253,  240,  253,  249,  182,  256,  241,  256,  252,  170,
+      257,  253,  257,  260,  244,  260,  256,  168,  245,  248,
+
+      167,  257,  166,  165,  260,  261,  249,  261,  164,  159,
+      264,  252,  264,  157,  253,  265,  261,  265,  267,  256,
+      267,  264,  156,  153,  257,  152,  265,  260,  135,  267,
+      134,  133,  126,  124,  120,  119,  118,  113,  112,  261,
+      110,   81,   80,   79,  264,   72,   70,   65,   63,  265,
+       51,   50,  267,  269,  269,  269,  269,  269,  269,  269,
+      270,  270,  270,  270,  270,  270,  270,  271,  271,  271,
+      271,  271,  271,  271,  272,  272,  272,  272,  272,  272,
+      272,  273,   33,  273,  273,  273,  273,  273,  275,  275,
+      275,  275,   28,   27,  275,  276,  276,  276,  276,  276,
+
+      276,  276,  277,  277,   24,  277,  277,   20,  277,  278,
+      278,  278,  278,  278,  278,  278,  279,  279,  279,  279,
+      279,  279,  280,   15,  280,  280,  280,  280,  280,  281,
+       11,  281,  281,  281,  281,  281,  282,  282,  282,  282,
+      282,  282,  282,  283,  283,  283,  283,  283,  283,  283,
+      284,  284,  284,  284,  284,  284,  284,   10,    9,  268,
+      268,  268,  268,  268,  268,  268,  268,  268,  268,  268,
+      268,  268,  268,  268,  268,  268,  268,  268,  268,  268,
+      268,  268,  268,  268,  268,  268,  268,  268,  268,  268,
+      268,  268,  268,  268,  268,  268,  268,  268,  268,  268,
+
+      268,  268,  268,  268,  268,  268,  268,  268,  268,  268,
+      268,  268,  268,  268,  268,  268,  268,  268,  268,  268,
+      268,  268,  268,  268,  268,  268,  268,  268,  268,  268,
+      268,  268,  268,  268,  268
     } ;
 
 /* The intent behind this definition is that it'll catch
@@ -665,11 +726,16 @@ do {\
 #define RETURN_ROW_ID() \
   { store_expr_str(yytext, yyleng, yytext + yyleng, yyscanner); return ROW_ID; }
 
+#define RETURN_REVERSED_EXPR_FUNC() \
+  { store_expr_str(yytext, yyleng, yytext + yyleng, yyscanner); return REVERSED_EXPR_FUNC; }
+
+
 
 
 
 /*following character status will be rewrite by gen_parse.sh according to connection character*/
-#line 674 "ob_expr_parser_gbk_lex.c"
+/* limit the length of int_num from 1 to 17 in case of int64_t out of bound, 17 -> [ ( length of 2^64 ) - 2 ]*/
+#line 740 "ob_expr_parser_gbk_lex.c"
 
 #define INITIAL 0
 #define in_c_comment 1
@@ -917,9 +983,9 @@ YY_DECL
 	register int yy_act;
     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
 
-#line 96 "ob_expr_parser_gbk.l"
+#line 102 "ob_expr_parser_gbk.l"
 
-#line 925 "ob_expr_parser_gbk_lex.c"
+#line 991 "ob_expr_parser_gbk_lex.c"
 
     yylval = yylval_param;
 
@@ -976,13 +1042,13 @@ YY_DECL
 			while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 				{
 				yy_current_state = (int) yy_def[yy_current_state];
-				if ( yy_current_state >= 187 )
+				if ( yy_current_state >= 269 )
 					yy_c = yy_meta[(unsigned int) yy_c];
 				}
 			yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
 			++yy_cp;
 			}
-		while ( yy_base[yy_current_state] != 500 );
+		while ( yy_base[yy_current_state] != 660 );
 
 yy_find_action:
 		yy_act = yy_accept[yy_current_state];
@@ -1008,206 +1074,226 @@ YY_DECL
 
 case 1:
 YY_RULE_SETUP
-#line 97 "ob_expr_parser_gbk.l"
+#line 103 "ob_expr_parser_gbk.l"
 { return WHERE; }
 	YY_BREAK
 case 2:
 YY_RULE_SETUP
-#line 98 "ob_expr_parser_gbk.l"
+#line 104 "ob_expr_parser_gbk.l"
 { return AS; }
 	YY_BREAK
 case 3:
 YY_RULE_SETUP
-#line 99 "ob_expr_parser_gbk.l"
+#line 105 "ob_expr_parser_gbk.l"
 { return VALUES; }
 	YY_BREAK
 case 4:
 YY_RULE_SETUP
-#line 100 "ob_expr_parser_gbk.l"
+#line 106 "ob_expr_parser_gbk.l"
 { return VALUES; }
 	YY_BREAK
 case 5:
 YY_RULE_SETUP
-#line 101 "ob_expr_parser_gbk.l"
+#line 107 "ob_expr_parser_gbk.l"
 { return SET; }
 	YY_BREAK
 case 6:
 YY_RULE_SETUP
-#line 102 "ob_expr_parser_gbk.l"
+#line 108 "ob_expr_parser_gbk.l"
 { return END_WHERE; }
 	YY_BREAK
 case 7:
 YY_RULE_SETUP
-#line 103 "ob_expr_parser_gbk.l"
+#line 109 "ob_expr_parser_gbk.l"
 { return END_WHERE; }
 	YY_BREAK
 case 8:
 YY_RULE_SETUP
-#line 104 "ob_expr_parser_gbk.l"
+#line 110 "ob_expr_parser_gbk.l"
 { return END_WHERE; }
 	YY_BREAK
 case 9:
 YY_RULE_SETUP
-#line 105 "ob_expr_parser_gbk.l"
+#line 111 "ob_expr_parser_gbk.l"
 { return END_WHERE; }
 	YY_BREAK
 case 10:
 YY_RULE_SETUP
-#line 106 "ob_expr_parser_gbk.l"
+#line 112 "ob_expr_parser_gbk.l"
 { RETURN_ROW_ID(); }
 	YY_BREAK
 case 11:
 YY_RULE_SETUP
-#line 108 "ob_expr_parser_gbk.l"
+#line 114 "ob_expr_parser_gbk.l"
 { return JOIN; }
 	YY_BREAK
 case 12:
 YY_RULE_SETUP
-#line 109 "ob_expr_parser_gbk.l"
+#line 115 "ob_expr_parser_gbk.l"
 { return ON; }
 	YY_BREAK
 case 13:
 YY_RULE_SETUP
-#line 110 "ob_expr_parser_gbk.l"
+#line 116 "ob_expr_parser_gbk.l"
 { return BETWEEN; }
 	YY_BREAK
 case 14:
 YY_RULE_SETUP
-#line 111 "ob_expr_parser_gbk.l"
+#line 117 "ob_expr_parser_gbk.l"
 { return AND_OP; }
 	YY_BREAK
 case 15:
 YY_RULE_SETUP
-#line 112 "ob_expr_parser_gbk.l"
+#line 118 "ob_expr_parser_gbk.l"
 { return AND_OP; }
 	YY_BREAK
 case 16:
 YY_RULE_SETUP
-#line 113 "ob_expr_parser_gbk.l"
+#line 119 "ob_expr_parser_gbk.l"
 { return OR_OP; }
 	YY_BREAK
 case 17:
 YY_RULE_SETUP
-#line 114 "ob_expr_parser_gbk.l"
+#line 120 "ob_expr_parser_gbk.l"
 { return OR_OP; }
 	YY_BREAK
 case 18:
 YY_RULE_SETUP
-#line 115 "ob_expr_parser_gbk.l"
+#line 121 "ob_expr_parser_gbk.l"
 { return IN; }
 	YY_BREAK
 case 19:
 YY_RULE_SETUP
-#line 116 "ob_expr_parser_gbk.l"
-{ return COMP_EQ; }
+#line 122 "ob_expr_parser_gbk.l"
+{ return IS; }
 	YY_BREAK
 case 20:
 YY_RULE_SETUP
-#line 117 "ob_expr_parser_gbk.l"
-{ return COMP_NSEQ; }
+#line 123 "ob_expr_parser_gbk.l"
+{ return TOKEN_NULL; }
 	YY_BREAK
 case 21:
 YY_RULE_SETUP
-#line 118 "ob_expr_parser_gbk.l"
-{ return COMP_GE; }
+#line 124 "ob_expr_parser_gbk.l"
+{ return NOT; }
 	YY_BREAK
 case 22:
 YY_RULE_SETUP
-#line 119 "ob_expr_parser_gbk.l"
-{ return COMP_GT; }
+#line 125 "ob_expr_parser_gbk.l"
+{ return COMP_EQ; }
 	YY_BREAK
 case 23:
 YY_RULE_SETUP
-#line 120 "ob_expr_parser_gbk.l"
-{ return COMP_LE; }
+#line 126 "ob_expr_parser_gbk.l"
+{ return COMP_NSEQ; }
 	YY_BREAK
 case 24:
 YY_RULE_SETUP
-#line 121 "ob_expr_parser_gbk.l"
-{ return COMP_LT; }
+#line 127 "ob_expr_parser_gbk.l"
+{ return COMP_GE; }
 	YY_BREAK
 case 25:
 YY_RULE_SETUP
-#line 122 "ob_expr_parser_gbk.l"
-{ return COMP_NE; }
+#line 128 "ob_expr_parser_gbk.l"
+{ return COMP_GT; }
 	YY_BREAK
 case 26:
 YY_RULE_SETUP
-#line 123 "ob_expr_parser_gbk.l"
-{ return PLACE_HOLDER; }
+#line 129 "ob_expr_parser_gbk.l"
+{ return COMP_LE; }
 	YY_BREAK
 case 27:
 YY_RULE_SETUP
-#line 124 "ob_expr_parser_gbk.l"
-{ store_pos_place_holder(yytext + 1, yyscanner); return POS_PLACE_HOLDER; }
+#line 130 "ob_expr_parser_gbk.l"
+{ return COMP_LT; }
 	YY_BREAK
 case 28:
 YY_RULE_SETUP
-#line 126 "ob_expr_parser_gbk.l"
-{ RETURN_INT_VAL(); }
+#line 131 "ob_expr_parser_gbk.l"
+{ return COMP_NE; }
 	YY_BREAK
 case 29:
 YY_RULE_SETUP
-#line 127 "ob_expr_parser_gbk.l"
-{ RETURN_NUMBER_VAL(); }
+#line 132 "ob_expr_parser_gbk.l"
+{ return PLACE_HOLDER; }
 	YY_BREAK
 case 30:
 YY_RULE_SETUP
-#line 128 "ob_expr_parser_gbk.l"
-{ RETURN_NAME_OB(); }
+#line 133 "ob_expr_parser_gbk.l"
+{ store_pos_place_holder(yytext + 1, yyscanner); return POS_PLACE_HOLDER; }
 	YY_BREAK
 case 31:
-/* rule 31 can match eol */
 YY_RULE_SETUP
-#line 129 "ob_expr_parser_gbk.l"
-{ }
+#line 134 "ob_expr_parser_gbk.l"
+{ RETURN_REVERSED_EXPR_FUNC();}
 	YY_BREAK
 case 32:
 YY_RULE_SETUP
-#line 130 "ob_expr_parser_gbk.l"
-{ return ','; }
+#line 136 "ob_expr_parser_gbk.l"
+{ RETURN_INT_VAL(); }
 	YY_BREAK
 case 33:
 YY_RULE_SETUP
-#line 131 "ob_expr_parser_gbk.l"
-{ return '('; }
+#line 137 "ob_expr_parser_gbk.l"
+{ RETURN_NUMBER_VAL(); }
 	YY_BREAK
 case 34:
 YY_RULE_SETUP
-#line 132 "ob_expr_parser_gbk.l"
-{ return ')'; }
+#line 138 "ob_expr_parser_gbk.l"
+{ RETURN_NAME_OB(); }
 	YY_BREAK
 case 35:
+/* rule 35 can match eol */
 YY_RULE_SETUP
-#line 133 "ob_expr_parser_gbk.l"
+#line 139 "ob_expr_parser_gbk.l"
+{ }
+	YY_BREAK
+case 36:
+YY_RULE_SETUP
+#line 140 "ob_expr_parser_gbk.l"
+{ return ','; }
+	YY_BREAK
+case 37:
+YY_RULE_SETUP
+#line 141 "ob_expr_parser_gbk.l"
+{ return '('; }
+	YY_BREAK
+case 38:
+YY_RULE_SETUP
+#line 142 "ob_expr_parser_gbk.l"
+{ return ')'; }
+	YY_BREAK
+case 39:
+YY_RULE_SETUP
+#line 143 "ob_expr_parser_gbk.l"
 { return yytext[0]; }
 	YY_BREAK
 /* comment */
-case 36:
+case 40:
 YY_RULE_SETUP
-#line 136 "ob_expr_parser_gbk.l"
+#line 146 "ob_expr_parser_gbk.l"
 { PUSH_STATE(in_c_comment); }
 	YY_BREAK
-case 37:
+case 41:
 YY_RULE_SETUP
-#line 137 "ob_expr_parser_gbk.l"
+#line 147 "ob_expr_parser_gbk.l"
 { POP_STATE(); }
 	YY_BREAK
-case 38:
-/* rule 38 can match eol */
+case 42:
+/* rule 42 can match eol */
 YY_RULE_SETUP
-#line 138 "ob_expr_parser_gbk.l"
+#line 148 "ob_expr_parser_gbk.l"
 {}
 	YY_BREAK
-case 39:
+case 43:
 YY_RULE_SETUP
-#line 139 "ob_expr_parser_gbk.l"
+#line 149 "ob_expr_parser_gbk.l"
 {}
 	YY_BREAK
 /* quote */
-case 40:
+case 44:
 YY_RULE_SETUP
-#line 142 "ob_expr_parser_gbk.l"
+#line 152 "ob_expr_parser_gbk.l"
 {
   PUSH_STATE(sq);
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
@@ -1218,10 +1304,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 41:
-/* rule 41 can match eol */
+case 45:
+/* rule 45 can match eol */
 YY_RULE_SETUP
-#line 152 "ob_expr_parser_gbk.l"
+#line 162 "ob_expr_parser_gbk.l"
 {
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -1229,9 +1315,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 42:
+case 46:
 YY_RULE_SETUP
-#line 159 "ob_expr_parser_gbk.l"
+#line 169 "ob_expr_parser_gbk.l"
 {
   POP_STATE();
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
@@ -1241,15 +1327,15 @@ YY_RULE_SETUP
   return STR_VAL;
 }
 	YY_BREAK
-case 43:
+case 47:
 YY_RULE_SETUP
-#line 168 "ob_expr_parser_gbk.l"
+#line 178 "ob_expr_parser_gbk.l"
 {}
 	YY_BREAK
-case 44:
-/* rule 44 can match eol */
+case 48:
+/* rule 48 can match eol */
 YY_RULE_SETUP
-#line 169 "ob_expr_parser_gbk.l"
+#line 179 "ob_expr_parser_gbk.l"
 {
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -1257,20 +1343,20 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 45:
-/* rule 45 can match eol */
+case 49:
+/* rule 49 can match eol */
 YY_RULE_SETUP
-#line 175 "ob_expr_parser_gbk.l"
+#line 185 "ob_expr_parser_gbk.l"
 {}
 	YY_BREAK
 case YY_STATE_EOF(sq):
-#line 176 "ob_expr_parser_gbk.l"
+#line 186 "ob_expr_parser_gbk.l"
 { return ERROR; }
 	YY_BREAK
 /* dquote */
-case 46:
+case 50:
 YY_RULE_SETUP
-#line 180 "ob_expr_parser_gbk.l"
+#line 190 "ob_expr_parser_gbk.l"
 {
   PUSH_STATE(dq);
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
@@ -1281,10 +1367,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 47:
-/* rule 47 can match eol */
+case 51:
+/* rule 51 can match eol */
 YY_RULE_SETUP
-#line 190 "ob_expr_parser_gbk.l"
+#line 200 "ob_expr_parser_gbk.l"
 {
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -1292,9 +1378,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 48:
+case 52:
 YY_RULE_SETUP
-#line 197 "ob_expr_parser_gbk.l"
+#line 207 "ob_expr_parser_gbk.l"
 {
   POP_STATE();
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
@@ -1307,31 +1393,31 @@ YY_RULE_SETUP
   return STR_VAL;
 }
 	YY_BREAK
-case 49:
+case 53:
 YY_RULE_SETUP
-#line 209 "ob_expr_parser_gbk.l"
+#line 219 "ob_expr_parser_gbk.l"
 {}
 	YY_BREAK
-case 50:
-/* rule 50 can match eol */
+case 54:
+/* rule 54 can match eol */
 YY_RULE_SETUP
-#line 210 "ob_expr_parser_gbk.l"
+#line 220 "ob_expr_parser_gbk.l"
 {}
 	YY_BREAK
-case 51:
-/* rule 51 can match eol */
+case 55:
+/* rule 55 can match eol */
 YY_RULE_SETUP
-#line 211 "ob_expr_parser_gbk.l"
+#line 221 "ob_expr_parser_gbk.l"
 {}
 	YY_BREAK
 case YY_STATE_EOF(dq):
-#line 212 "ob_expr_parser_gbk.l"
+#line 222 "ob_expr_parser_gbk.l"
 { return ERROR; }
 	YY_BREAK
 /* backtick */
-case 52:
+case 56:
 YY_RULE_SETUP
-#line 216 "ob_expr_parser_gbk.l"
+#line 226 "ob_expr_parser_gbk.l"
 {
   PUSH_STATE(bt);
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
@@ -1342,9 +1428,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 53:
+case 57:
 YY_RULE_SETUP
-#line 226 "ob_expr_parser_gbk.l"
+#line 236 "ob_expr_parser_gbk.l"
 {
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
   if (NULL != p && NULL != p->tmp_buf_ && p->tmp_len_ + 1 < OBPROXY_MAX_NAME_LENGTH) {
@@ -1352,10 +1438,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 54:
-/* rule 54 can match eol */
+case 58:
+/* rule 58 can match eol */
 YY_RULE_SETUP
-#line 233 "ob_expr_parser_gbk.l"
+#line 243 "ob_expr_parser_gbk.l"
 {
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
   if (NULL != p && NULL != p->tmp_buf_ && p->tmp_len_ + yyleng < OBPROXY_MAX_NAME_LENGTH) {
@@ -1364,9 +1450,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 55:
+case 59:
 YY_RULE_SETUP
-#line 241 "ob_expr_parser_gbk.l"
+#line 251 "ob_expr_parser_gbk.l"
 {
   POP_STATE();
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
@@ -1379,27 +1465,27 @@ YY_RULE_SETUP
 }
 	YY_BREAK
 case YY_STATE_EOF(bt):
-#line 252 "ob_expr_parser_gbk.l"
+#line 262 "ob_expr_parser_gbk.l"
 {
   return ERROR;
 }
 	YY_BREAK
 case YY_STATE_EOF(INITIAL):
 case YY_STATE_EOF(in_c_comment):
-#line 256 "ob_expr_parser_gbk.l"
+#line 266 "ob_expr_parser_gbk.l"
 { return END_P; }
 	YY_BREAK
-case 56:
+case 60:
 YY_RULE_SETUP
-#line 257 "ob_expr_parser_gbk.l"
+#line 267 "ob_expr_parser_gbk.l"
 { return IGNORED_WORD; }
 	YY_BREAK
-case 57:
+case 61:
 YY_RULE_SETUP
-#line 258 "ob_expr_parser_gbk.l"
+#line 268 "ob_expr_parser_gbk.l"
 ECHO;
 	YY_BREAK
-#line 1405 "ob_expr_parser_gbk_lex.c"
+#line 1491 "ob_expr_parser_gbk_lex.c"
 
 	case YY_END_OF_BUFFER:
 		{
@@ -1691,7 +1777,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 		while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 			{
 			yy_current_state = (int) yy_def[yy_current_state];
-			if ( yy_current_state >= 187 )
+			if ( yy_current_state >= 269 )
 				yy_c = yy_meta[(unsigned int) yy_c];
 			}
 		yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
@@ -1720,11 +1806,11 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 	while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 		{
 		yy_current_state = (int) yy_def[yy_current_state];
-		if ( yy_current_state >= 187 )
+		if ( yy_current_state >= 269 )
 			yy_c = yy_meta[(unsigned int) yy_c];
 		}
 	yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
-	yy_is_jam = (yy_current_state == 186);
+	yy_is_jam = (yy_current_state == 268);
 
 	return yy_is_jam ? 0 : yy_current_state;
 }
@@ -2549,7 +2635,7 @@ static int yy_flex_strlen (yyconst char * s , yyscan_t yyscanner)
 
 #define YYTABLES_NAME "yytables"
 
-#line 258 "ob_expr_parser_gbk.l"
+#line 268 "ob_expr_parser_gbk.l"
 
 
 
@@ -2680,22 +2766,26 @@ extern int ob_expr_parser_gbk_yydebug;
      IN = 268,
      ON = 269,
      BETWEEN = 270,
-     COMP_EQ = 271,
-     COMP_NSEQ = 272,
-     COMP_GE = 273,
-     COMP_GT = 274,
-     COMP_LE = 275,
-     COMP_LT = 276,
-     COMP_NE = 277,
-     PLACE_HOLDER = 278,
-     END_P = 279,
-     ERROR = 280,
-     IGNORED_WORD = 281,
-     NAME_OB = 282,
-     STR_VAL = 283,
-     ROW_ID = 284,
-     INT_VAL = 285,
-     POS_PLACE_HOLDER = 286
+     IS = 271,
+     TOKEN_NULL = 272,
+     NOT = 273,
+     COMP_EQ = 274,
+     COMP_NSEQ = 275,
+     COMP_GE = 276,
+     COMP_GT = 277,
+     COMP_LE = 278,
+     COMP_LT = 279,
+     COMP_NE = 280,
+     PLACE_HOLDER = 281,
+     END_P = 282,
+     ERROR = 283,
+     IGNORED_WORD = 284,
+     NAME_OB = 285,
+     STR_VAL = 286,
+     ROW_ID = 287,
+     REVERSED_EXPR_FUNC = 288,
+     INT_VAL = 289,
+     POS_PLACE_HOLDER = 290
    };
 #endif
 
diff --git a/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_lex.h b/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_lex.h
index c3edcf27..6f76d34d 100644
--- a/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_lex.h
+++ b/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_lex.h
@@ -341,7 +341,7 @@ extern int ob_expr_parser_gbk_yylex \
 #undef YY_DECL
 #endif
 
-#line 258 "ob_expr_parser_gbk.l"
+#line 268 "ob_expr_parser_gbk.l"
 
 
 #line 348 "ob_expr_parser_gbk_lex.h"
diff --git a/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_tab.c b/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_tab.c
index 46a18aa7..41f0d84c 100644
--- a/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_tab.c
+++ b/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_tab.c
@@ -139,22 +139,26 @@ extern int ob_expr_parser_gbk_yydebug;
      IN = 268,
      ON = 269,
      BETWEEN = 270,
-     COMP_EQ = 271,
-     COMP_NSEQ = 272,
-     COMP_GE = 273,
-     COMP_GT = 274,
-     COMP_LE = 275,
-     COMP_LT = 276,
-     COMP_NE = 277,
-     PLACE_HOLDER = 278,
-     END_P = 279,
-     ERROR = 280,
-     IGNORED_WORD = 281,
-     NAME_OB = 282,
-     STR_VAL = 283,
-     ROW_ID = 284,
-     INT_VAL = 285,
-     POS_PLACE_HOLDER = 286
+     IS = 271,
+     TOKEN_NULL = 272,
+     NOT = 273,
+     COMP_EQ = 274,
+     COMP_NSEQ = 275,
+     COMP_GE = 276,
+     COMP_GT = 277,
+     COMP_LE = 278,
+     COMP_LT = 279,
+     COMP_NE = 280,
+     PLACE_HOLDER = 281,
+     END_P = 282,
+     ERROR = 283,
+     IGNORED_WORD = 284,
+     NAME_OB = 285,
+     STR_VAL = 286,
+     ROW_ID = 287,
+     REVERSED_EXPR_FUNC = 288,
+     INT_VAL = 289,
+     POS_PLACE_HOLDER = 290
    };
 #endif
 
@@ -232,8 +236,8 @@ static inline void add_token_list(ObProxyTokenList *list, ObProxyTokenList *next
   if (OB_ISNULL(list) || OB_ISNULL(next_list)) {
   } else if (NULL != list->tail_
              && NULL  != next_list->head_
-             && (TOKEN_INT_VAL == list->tail_->type_ || TOKEN_STR_VAL == list->tail_->type_)
-             && (TOKEN_INT_VAL == next_list->head_->type_ || TOKEN_STR_VAL == next_list->head_->type_)) {
+             && (TOKEN_INT_VAL == list->tail_->type_ || TOKEN_STR_VAL == list->tail_->type_ || TOKEN_FUNC == list->tail_->type_)
+             && (TOKEN_INT_VAL == next_list->head_->type_ || TOKEN_STR_VAL == next_list->head_->type_ || TOKEN_FUNC == next_list->head_->type_)) {
     list->tail_->next_ = next_list->head_;
     list->tail_ = next_list->head_;
     list->tail_->next_ = NULL;
@@ -305,11 +309,18 @@ static inline void set_part_key_column_idx(ObExprParseResult *result, ObProxyPar
   for (i = 0; i < result->part_key_info_.key_num_; ++i) {
     if (is_equal(column_name, &result->part_key_info_.part_keys_[i].name_)) {
       result->part_key_info_.part_keys_[i].idx_ = result->column_idx_;
-      break;
+      result->part_key_info_.part_keys_[i].is_exist_in_sql_ = true;
     }
   }
 }
 
+static inline void init_part_key_all_match(ObExprParseResult *result)
+{
+  for (int64_t i = 0; i < result->part_key_info_.key_num_; ++i) {
+      result->part_key_info_.part_keys_[i].is_exist_in_sql_ = true;
+  }
+}
+
 #define malloc_node(node, result, type)                                                       \
   do {                                                                                        \
     if (OB_ISNULL(node = ((ObProxyTokenNode *)obproxy_parse_malloc(sizeof(ObProxyTokenNode),  \
@@ -344,21 +355,13 @@ static inline void set_part_key_column_idx(ObExprParseResult *result, ObProxyPar
   do {                                                                                          \
     if (NULL == relation) {                                                                     \
     } else {                                                                                    \
-      int64_t new_mask = get_mask(relation->type_, relation->level_);                           \
-      bool has_rowid = result->has_rowid_;                                                      \
-      if (((result->cur_mask_ | new_mask) != result->cur_mask_)                                 \
-          || (has_rowid                                                                         \
-              && is_equal_to_rowid(&relation->left_value_->column_node_->column_name_))) {      \
+      if (relation->level_ != PART_KEY_LEVEL_ZERO) {                                            \
         if (result->relation_info_.relation_num_ < OBPROXY_MAX_RELATION_NUM) {                  \
           result->relation_info_.relations_[result->relation_info_.relation_num_++] = relation; \
-          result->cur_mask_ = (result->cur_mask_ | new_mask);                                   \
         } else {                                                                                \
           /* YYACCEPT; */                                                                       \
         }                                                                                       \
       }                                                                                         \
-      if ((result->cur_mask_ & result->target_mask_) == result->target_mask_) {                 \
-        /* YYACCEPT; */                                                                              \
-      }                                                                                         \
     }                                                                                           \
   } while(0)                                                                                    \
 
@@ -428,6 +431,92 @@ static inline void add_relation(ObExprParseResult *result,
   }
 }
 
+static inline void set_relation_part_with_column_idx(int64_t idx_in_schema_columns, 
+                                                     ObExprParseResult *result, 
+                                                     ObProxyPartKeyLevel *level, 
+                                                     int64_t *first_part_column_idx, 
+                                                     int64_t *second_part_column_idx) 
+{
+  if (OB_ISNULL(level) && OB_ISNULL(first_part_column_idx) && 
+      OB_ISNULL(second_part_column_idx) && OB_ISNULL(result)) {
+    // do nothing
+  } else {
+    *level = PART_KEY_LEVEL_ZERO;
+    *first_part_column_idx = 0;
+    *second_part_column_idx = 0;
+    bool is_level_one = false;
+    bool is_level_two = false;
+    for (int i = 0; i < result->part_key_info_.key_num_; i++) {
+      // make sure the part_key exist in sql to avoid the uninitialized idx_
+      if (idx_in_schema_columns == result->part_key_info_.part_keys_[i].idx_ && result->part_key_info_.part_keys_[i].is_exist_in_sql_) {
+        if (result->part_key_info_.part_keys_[i].level_ == PART_KEY_LEVEL_ONE) {
+          is_level_one = true;
+          *first_part_column_idx = result->part_key_info_.part_keys_[i].idx_in_part_columns_;
+        } else if (result->part_key_info_.part_keys_[i].level_ == PART_KEY_LEVEL_TWO) {
+          is_level_two = true;
+          *second_part_column_idx = result->part_key_info_.part_keys_[i].idx_in_part_columns_;
+        }
+      }
+    }
+    if (is_level_one) {
+      *level = PART_KEY_LEVEL_ONE;
+    }
+    if (is_level_two) {
+      *level = PART_KEY_LEVEL_TWO;
+    }
+    if (is_level_one && is_level_two) {
+      *level = PART_KEY_LEVEL_BOTH;
+    }
+  }
+}
+
+static inline void set_relation_part_with_column_name(ObProxyParseString *column,
+                                                      ObExprParseResult *result,
+                                                      ObProxyPartKeyLevel *level,
+                                                      int64_t *first_part_column_idx,
+                                                      int64_t *second_part_column_idx) 
+{
+  if (OB_ISNULL(column)
+      || OB_ISNULL(result)
+      || OB_ISNULL(level)
+      || OB_ISNULL(first_part_column_idx)
+      || OB_ISNULL(second_part_column_idx)) {
+    // do nothing
+  } else if (result->has_rowid_
+             && is_equal_to_rowid(column)) {
+    // handle rowid
+    *level = PART_KEY_LEVEL_ONE;
+    *first_part_column_idx = 0;
+    *second_part_column_idx = 0;
+  } else {
+    *level = PART_KEY_LEVEL_ZERO;
+    *first_part_column_idx = 0;
+    *second_part_column_idx = 0;
+    bool is_level_one = false;
+    bool is_level_two = false;
+    for (int i = 0; i < result->part_key_info_.key_num_; i++) {
+      if (is_equal(&result->part_key_info_.part_keys_[i].name_, column)) {
+        if (result->part_key_info_.part_keys_[i].level_ == PART_KEY_LEVEL_ONE) {
+          is_level_one = true;
+          *first_part_column_idx = result->part_key_info_.part_keys_[i].idx_in_part_columns_;
+        } else if (result->part_key_info_.part_keys_[i].level_ == PART_KEY_LEVEL_TWO) {
+          is_level_two = true;
+          *second_part_column_idx = result->part_key_info_.part_keys_[i].idx_in_part_columns_;
+        }
+      }
+    }
+    if (is_level_one) {
+      *level = PART_KEY_LEVEL_ONE;
+    }
+    if (is_level_two) {
+      *level = PART_KEY_LEVEL_TWO;
+    }
+    if (is_level_one && is_level_two) {
+      *level = PART_KEY_LEVEL_BOTH;
+    }
+  }
+}
+
 
 static inline ObProxyRelationExpr *get_relation(ObExprParseResult *result,
                                                 ObProxyTokenList *left_value,
@@ -438,25 +527,25 @@ static inline ObProxyRelationExpr *get_relation(ObExprParseResult *result,
   ObProxyTokenList *tmp_left = NULL;
   ObProxyTokenList *tmp_right = NULL;
   ObProxyFunctionType tmp_type = F_NONE;
-  ObProxyPartKeyLevel tmp_level = PART_KEY_LEVEL_ZERO;
   int64_t tmp_column_idx_ = -1;
+  ObProxyParseString *tmp_column = NULL;
 
   if (NULL != left_value->column_node_
       && TOKEN_COLUMN == left_value->column_node_->type_
       && left_value->column_node_->part_key_idx_ >= 0) {
     tmp_left = left_value;
-    tmp_level = result->part_key_info_.part_keys_[left_value->column_node_->part_key_idx_].level_;
     tmp_right = right_value;
     tmp_type = type;
     tmp_column_idx_ = left_value->column_node_->part_key_idx_;
+    tmp_column = &left_value->column_node_->column_name_;
   } else if (NULL != right_value->column_node_
              && TOKEN_COLUMN == right_value->column_node_->type_
              && right_value->column_node_->part_key_idx_ >= 0) {
     tmp_left = right_value;
-    tmp_level = result->part_key_info_.part_keys_[right_value->column_node_->part_key_idx_].level_;
     tmp_right = left_value;
     tmp_type = get_reverse_func(type);
     tmp_column_idx_ = right_value->column_node_->part_key_idx_;
+    tmp_column = &right_value->column_node_->column_name_;
   }
 
   if (NULL == tmp_left || NULL == tmp_right || F_COMP_NE == tmp_type) {
@@ -469,7 +558,11 @@ static inline ObProxyRelationExpr *get_relation(ObExprParseResult *result,
     relation->left_value_ = tmp_left;
     relation->type_ = tmp_type;
     relation->right_value_ = tmp_right;
-    relation->level_ = tmp_level;
+    set_relation_part_with_column_name(tmp_column,
+                                       result,
+                                       &relation->level_,
+                                       &relation->first_part_column_idx_,
+                                       &relation->second_part_column_idx_);
   }
   return relation;
 }
@@ -483,14 +576,20 @@ static inline ObProxyRelationExpr *get_values_relation(ObExprParseResult *result
   } else {
     int64_t i = 0;
     for (i = 0; i < result->part_key_info_.key_num_; ++i) {
-      if (result->values_list_idx_ == result->part_key_info_.part_keys_[i].idx_) {
+      // make sure the part_key exist in sql to avoid the uninitialized idx_
+      if (result->values_list_idx_ == result->part_key_info_.part_keys_[i].idx_ && result->part_key_info_.part_keys_[i].is_exist_in_sql_) {
         if (OB_ISNULL(relation = ((ObProxyRelationExpr *)obproxy_parse_malloc(
                                         sizeof(ObProxyRelationExpr), result->malloc_pool_)))) {
         } else {
           relation->column_idx_ = i;
           relation->type_ = F_COMP_EQ;
           relation->right_value_ = right_value;
-          relation->level_ = result->part_key_info_.part_keys_[i].level_;
+          relation->left_value_ = NULL;
+          set_relation_part_with_column_idx(result->values_list_idx_, 
+                                            result,
+                                            &relation->level_, 
+                                            &relation->first_part_column_idx_, 
+                                            &relation->second_part_column_idx_);        
         }
         break;
       }
@@ -752,20 +851,20 @@ union yyalloc
 /* YYFINAL -- State number of the termination state.  */
 #define YYFINAL  17
 /* YYLAST -- Last index in YYTABLE.  */
-#define YYLAST   231
+#define YYLAST   242
 
 /* YYNTOKENS -- Number of terminals.  */
-#define YYNTOKENS  44
+#define YYNTOKENS  48
 /* YYNNTS -- Number of nonterminals.  */
 #define YYNNTS  24
 /* YYNRULES -- Number of rules.  */
-#define YYNRULES  80
+#define YYNRULES  83
 /* YYNRULES -- Number of states.  */
-#define YYNSTATES  144
+#define YYNSTATES  149
 
 /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
 #define YYUNDEFTOK  2
-#define YYMAXUTOK   286
+#define YYMAXUTOK   290
 
 #define YYTRANSLATE(YYX)						\
   ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
@@ -776,9 +875,9 @@ static const yytype_uint8 yytranslate[] =
        0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,    43,     2,     2,     2,    41,    42,     2,
-      35,    32,    39,    37,    36,    38,    34,    40,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,    33,
+       2,     2,     2,    47,     2,     2,     2,    45,    46,     2,
+      39,    36,    43,    41,    40,    42,    38,    44,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,    37,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
@@ -801,7 +900,8 @@ static const yytype_uint8 yytranslate[] =
        2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
        5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
       15,    16,    17,    18,    19,    20,    21,    22,    23,    24,
-      25,    26,    27,    28,    29,    30,    31
+      25,    26,    27,    28,    29,    30,    31,    32,    33,    34,
+      35
 };
 
 #if YYDEBUG
@@ -812,57 +912,58 @@ static const yytype_uint16 yyprhs[] =
        0,     0,     3,     6,     9,    13,    16,    21,    23,    25,
       27,    29,    31,    33,    36,    40,    43,    48,    52,    57,
       63,    70,    72,    76,    82,    86,    92,    96,   102,   108,
-     114,   120,   122,   124,   126,   128,   130,   132,   134,   136,
-     140,   142,   144,   147,   148,   152,   156,   158,   160,   164,
-     170,   175,   180,   182,   184,   186,   188,   190,   192,   194,
-     196,   198,   200,   202,   204,   209,   214,   218,   220,   224,
-     230,   231,   235,   237,   241,   243,   245,   249,   251,   255,
-     256
+     114,   120,   124,   129,   131,   133,   135,   137,   139,   141,
+     143,   145,   149,   151,   153,   156,   157,   161,   165,   167,
+     169,   173,   179,   181,   186,   191,   193,   195,   197,   199,
+     201,   203,   205,   207,   209,   211,   213,   215,   220,   225,
+     229,   231,   235,   241,   242,   246,   248,   252,   254,   256,
+     260,   262,   266,   267
 };
 
 /* YYRHS -- A `-1'-separated list of the rules' RHS.  */
 static const yytype_int8 yyrhs[] =
 {
-      45,     0,    -1,     3,    46,    -1,     4,    60,    -1,     5,
-      51,    47,    -1,    48,    47,    -1,    48,     5,    51,    47,
-      -1,     1,    -1,     9,    -1,    32,    -1,    33,    -1,    24,
-      -1,    49,    -1,    48,    49,    -1,    50,    14,    51,    -1,
-      10,    27,    -1,    10,    27,    34,    27,    -1,    10,    27,
-      27,    -1,    10,    27,     6,    27,    -1,    10,    27,    34,
-      27,    27,    -1,    10,    27,    34,    27,     6,    27,    -1,
-      52,    -1,    51,    11,    52,    -1,    35,    51,    11,    52,
-      32,    -1,    51,    12,    52,    -1,    35,    51,    12,    52,
-      32,    -1,    55,    53,    55,    -1,    55,    53,    35,    55,
-      32,    -1,    35,    55,    53,    55,    32,    -1,    55,    13,
-      35,    54,    32,    -1,    55,    15,    55,    11,    55,    -1,
-      16,    -1,    17,    -1,    18,    -1,    19,    -1,    20,    -1,
-      21,    -1,    22,    -1,    55,    -1,    54,    36,    55,    -1,
-      56,    -1,    58,    -1,    56,    58,    -1,    -1,    56,    36,
-      56,    -1,    57,    36,    56,    -1,    29,    -1,    27,    -1,
-      27,    34,    27,    -1,    27,    34,    27,    34,    27,    -1,
-      27,    35,    56,    32,    -1,    27,    35,    57,    32,    -1,
-      30,    -1,    28,    -1,    59,    -1,    23,    -1,    31,    -1,
-      37,    -1,    38,    -1,    39,    -1,    40,    -1,    41,    -1,
-      42,    -1,    43,    -1,    62,     7,    61,    47,    -1,     8,
-      66,    67,    47,    -1,    14,    51,    47,    -1,    46,    -1,
-      35,    65,    32,    -1,    61,    36,    35,    65,    32,    -1,
-      -1,    35,    63,    32,    -1,    64,    -1,    63,    36,    64,
-      -1,    27,    -1,    55,    -1,    65,    36,    55,    -1,    52,
-      -1,    66,    36,    52,    -1,    -1,     5,    51,    -1
+      49,     0,    -1,     3,    50,    -1,     4,    64,    -1,     5,
+      55,    51,    -1,    52,    51,    -1,    52,     5,    55,    51,
+      -1,     1,    -1,     9,    -1,    36,    -1,    37,    -1,    27,
+      -1,    53,    -1,    52,    53,    -1,    54,    14,    55,    -1,
+      10,    30,    -1,    10,    30,    38,    30,    -1,    10,    30,
+      30,    -1,    10,    30,     6,    30,    -1,    10,    30,    38,
+      30,    30,    -1,    10,    30,    38,    30,     6,    30,    -1,
+      56,    -1,    55,    11,    56,    -1,    39,    55,    11,    56,
+      36,    -1,    55,    12,    56,    -1,    39,    55,    12,    56,
+      36,    -1,    59,    57,    59,    -1,    59,    57,    39,    59,
+      36,    -1,    39,    59,    57,    59,    36,    -1,    59,    13,
+      39,    58,    36,    -1,    59,    15,    59,    11,    59,    -1,
+      59,    16,    17,    -1,    59,    16,    18,    17,    -1,    19,
+      -1,    20,    -1,    21,    -1,    22,    -1,    23,    -1,    24,
+      -1,    25,    -1,    59,    -1,    58,    40,    59,    -1,    60,
+      -1,    62,    -1,    60,    62,    -1,    -1,    60,    40,    60,
+      -1,    61,    40,    60,    -1,    32,    -1,    30,    -1,    30,
+      38,    30,    -1,    30,    38,    30,    38,    30,    -1,    33,
+      -1,    30,    39,    60,    36,    -1,    30,    39,    61,    36,
+      -1,    34,    -1,    31,    -1,    63,    -1,    26,    -1,    35,
+      -1,    41,    -1,    42,    -1,    43,    -1,    44,    -1,    45,
+      -1,    46,    -1,    47,    -1,    66,     7,    65,    51,    -1,
+       8,    70,    71,    51,    -1,    14,    55,    51,    -1,    50,
+      -1,    39,    69,    36,    -1,    65,    40,    39,    69,    36,
+      -1,    -1,    39,    67,    36,    -1,    68,    -1,    67,    40,
+      68,    -1,    30,    -1,    59,    -1,    69,    40,    59,    -1,
+      56,    -1,    70,    40,    56,    -1,    -1,     5,    55,    -1
 };
 
 /* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
 static const yytype_uint16 yyrline[] =
 {
-       0,   380,   380,   381,   383,   384,   385,   386,   388,   389,
-     390,   391,   393,   394,   396,   398,   399,   400,   401,   402,
-     403,   405,   406,   407,   408,   409,   411,   412,   413,   414,
-     415,   426,   427,   428,   429,   430,   431,   432,   434,   435,
-     437,   439,   440,   442,   443,   444,   447,   454,   460,   466,
-     472,   478,   484,   485,   486,   487,   493,   499,   500,   501,
-     502,   503,   504,   505,   507,   508,   509,   510,   512,   516,
-     521,   522,   527,   531,   536,   542,   552,   562,   563,   565,
-     566
+       0,   475,   475,   476,   478,   479,   480,   481,   483,   484,
+     485,   486,   488,   489,   491,   493,   494,   495,   496,   497,
+     498,   500,   501,   502,   503,   504,   506,   507,   508,   509,
+     510,   520,   521,   523,   524,   525,   526,   527,   528,   529,
+     531,   532,   534,   536,   537,   539,   540,   541,   544,   551,
+     557,   563,   569,   574,   580,   586,   587,   588,   589,   595,
+     601,   602,   603,   604,   605,   606,   607,   609,   610,   611,
+     612,   614,   618,   623,   624,   629,   633,   638,   644,   654,
+     664,   665,   667,   668
 };
 #endif
 
@@ -873,13 +974,14 @@ static const char *const yytname[] =
 {
   "$end", "error", "$undefined", "DUMMY_SELECT_CLAUSE",
   "DUMMY_INSERT_CLAUSE", "WHERE", "AS", "VALUES", "SET", "END_WHERE",
-  "JOIN", "AND_OP", "OR_OP", "IN", "ON", "BETWEEN", "COMP_EQ", "COMP_NSEQ",
-  "COMP_GE", "COMP_GT", "COMP_LE", "COMP_LT", "COMP_NE", "PLACE_HOLDER",
-  "END_P", "ERROR", "IGNORED_WORD", "NAME_OB", "STR_VAL", "ROW_ID",
-  "INT_VAL", "POS_PLACE_HOLDER", "')'", "';'", "'.'", "'('", "','", "'+'",
-  "'-'", "'*'", "'/'", "'%'", "'&'", "'!'", "$accept", "start",
-  "select_root", "end_flag", "join_expr_list", "join_on_expr", "join_expr",
-  "cond_expr", "bool_pri", "comp", "in_expr_list", "expr", "token_list",
+  "JOIN", "AND_OP", "OR_OP", "IN", "ON", "BETWEEN", "IS", "TOKEN_NULL",
+  "NOT", "COMP_EQ", "COMP_NSEQ", "COMP_GE", "COMP_GT", "COMP_LE",
+  "COMP_LT", "COMP_NE", "PLACE_HOLDER", "END_P", "ERROR", "IGNORED_WORD",
+  "NAME_OB", "STR_VAL", "ROW_ID", "REVERSED_EXPR_FUNC", "INT_VAL",
+  "POS_PLACE_HOLDER", "')'", "';'", "'.'", "'('", "','", "'+'", "'-'",
+  "'*'", "'/'", "'%'", "'&'", "'!'", "$accept", "start", "select_root",
+  "end_flag", "join_expr_list", "join_on_expr", "join_expr", "cond_expr",
+  "bool_pri", "comp", "in_expr_list", "expr", "token_list",
   "func_param_list", "token", "operator", "insert_root",
   "values_expr_lists", "opt_column_list", "column_list", "opt_column",
   "values_expr_list", "set_expr", "opt_where_clause", 0
@@ -894,23 +996,23 @@ static const yytype_uint16 yytoknum[] =
        0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
      265,   266,   267,   268,   269,   270,   271,   272,   273,   274,
      275,   276,   277,   278,   279,   280,   281,   282,   283,   284,
-     285,   286,    41,    59,    46,    40,    44,    43,    45,    42,
-      47,    37,    38,    33
+     285,   286,   287,   288,   289,   290,    41,    59,    46,    40,
+      44,    43,    45,    42,    47,    37,    38,    33
 };
 # endif
 
 /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
 static const yytype_uint8 yyr1[] =
 {
-       0,    44,    45,    45,    46,    46,    46,    46,    47,    47,
-      47,    47,    48,    48,    49,    50,    50,    50,    50,    50,
-      50,    51,    51,    51,    51,    51,    52,    52,    52,    52,
-      52,    53,    53,    53,    53,    53,    53,    53,    54,    54,
-      55,    56,    56,    57,    57,    57,    58,    58,    58,    58,
-      58,    58,    58,    58,    58,    58,    58,    59,    59,    59,
-      59,    59,    59,    59,    60,    60,    60,    60,    61,    61,
-      62,    62,    63,    63,    64,    65,    65,    66,    66,    67,
-      67
+       0,    48,    49,    49,    50,    50,    50,    50,    51,    51,
+      51,    51,    52,    52,    53,    54,    54,    54,    54,    54,
+      54,    55,    55,    55,    55,    55,    56,    56,    56,    56,
+      56,    56,    56,    57,    57,    57,    57,    57,    57,    57,
+      58,    58,    59,    60,    60,    61,    61,    61,    62,    62,
+      62,    62,    62,    62,    62,    62,    62,    62,    62,    62,
+      63,    63,    63,    63,    63,    63,    63,    64,    64,    64,
+      64,    65,    65,    66,    66,    67,    67,    68,    69,    69,
+      70,    70,    71,    71
 };
 
 /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
@@ -919,12 +1021,12 @@ static const yytype_uint8 yyr2[] =
        0,     2,     2,     2,     3,     2,     4,     1,     1,     1,
        1,     1,     1,     2,     3,     2,     4,     3,     4,     5,
        6,     1,     3,     5,     3,     5,     3,     5,     5,     5,
-       5,     1,     1,     1,     1,     1,     1,     1,     1,     3,
-       1,     1,     2,     0,     3,     3,     1,     1,     3,     5,
-       4,     4,     1,     1,     1,     1,     1,     1,     1,     1,
-       1,     1,     1,     1,     4,     4,     3,     1,     3,     5,
-       0,     3,     1,     3,     1,     1,     3,     1,     3,     0,
-       2
+       5,     3,     4,     1,     1,     1,     1,     1,     1,     1,
+       1,     3,     1,     1,     2,     0,     3,     3,     1,     1,
+       3,     5,     1,     4,     4,     1,     1,     1,     1,     1,
+       1,     1,     1,     1,     1,     1,     1,     4,     4,     3,
+       1,     3,     5,     0,     3,     1,     3,     1,     1,     3,
+       1,     3,     0,     2
 };
 
 /* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
@@ -933,140 +1035,142 @@ static const yytype_uint8 yyr2[] =
 static const yytype_uint8 yydefact[] =
 {
        0,     0,     0,     0,     7,     0,     0,     2,     0,    12,
-       0,     0,     0,     0,    67,     3,     0,     1,    55,    47,
-      53,    46,    52,    56,     0,    57,    58,    59,    60,    61,
-      62,    63,     0,    21,     0,    40,    41,    54,    15,     0,
-       8,    11,     9,    10,     5,    13,     0,     0,    77,    79,
-       0,    74,     0,    72,     0,     0,    43,     0,     0,     0,
-       0,     4,     0,     0,    31,    32,    33,    34,    35,    36,
-      37,     0,    42,     0,    17,     0,     0,    14,     0,     0,
-       0,     0,    66,    71,     0,     0,     0,    48,     0,     0,
-       0,     0,     0,    22,    24,     0,     0,     0,    26,    18,
-      16,     6,     0,    80,    78,    65,    73,    75,     0,     0,
-      64,     0,    50,     0,    51,     0,    22,    24,    26,     0,
-      38,     0,     0,     0,    19,     0,    68,     0,     0,    49,
-      44,    45,    23,    25,    28,    29,     0,    30,    27,    20,
-      76,     0,    39,    69
+       0,     0,     0,     0,    70,     3,     0,     1,    58,    49,
+      56,    48,    52,    55,    59,     0,    60,    61,    62,    63,
+      64,    65,    66,     0,    21,     0,    42,    43,    57,    15,
+       0,     8,    11,     9,    10,     5,    13,     0,     0,    80,
+      82,     0,    77,     0,    75,     0,     0,    45,     0,     0,
+       0,     0,     4,     0,     0,     0,    33,    34,    35,    36,
+      37,    38,    39,     0,    44,     0,    17,     0,     0,    14,
+       0,     0,     0,     0,    69,    74,     0,     0,     0,    50,
+       0,     0,     0,     0,     0,    22,    24,     0,     0,    31,
+       0,     0,    26,    18,    16,     6,     0,    83,    81,    68,
+      76,    78,     0,     0,    67,     0,    53,     0,    54,     0,
+      22,    24,    26,     0,    40,     0,    32,     0,     0,    19,
+       0,    71,     0,     0,    51,    46,    47,    23,    25,    28,
+      29,     0,    30,    27,    20,    79,     0,    41,    72
 };
 
 /* YYDEFGOTO[NTERM-NUM].  */
 static const yytype_int8 yydefgoto[] =
 {
-      -1,     3,     7,    44,     8,     9,    10,    32,    33,    71,
-     119,    34,    35,    89,    36,    37,    15,    86,    16,    52,
-      53,   108,    49,    81
+      -1,     3,     7,    45,     8,     9,    10,    33,    34,    73,
+     123,    35,    36,    91,    37,    38,    15,    88,    16,    53,
+      54,   112,    50,    83
 };
 
 /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
    STATE-NUM.  */
-#define YYPACT_NINF -52
+#define YYPACT_NINF -54
 static const yytype_int16 yypact[] =
 {
-      41,    16,     1,    13,   -52,   108,    -9,   -52,    22,   -52,
-      14,   129,   108,     6,   -52,   -52,    33,   -52,   -52,    31,
-     -52,   -52,   -52,   -52,   108,   -52,   -52,   -52,   -52,   -52,
-     -52,   -52,    76,   -52,   202,   171,   -52,   -52,     8,   108,
-     -52,   -52,   -52,   -52,   -52,   -52,   108,   171,   -52,     7,
-      76,   -52,   -12,   -52,     3,    24,   171,    84,   202,   129,
-     129,   -52,    25,   171,   -52,   -52,   -52,   -52,   -52,   -52,
-     -52,   150,   -52,    30,   -52,    45,    76,    90,   209,   108,
-     129,    60,   -52,   -52,     6,   171,    43,    49,    87,    -7,
-     129,   129,   150,   -52,   -52,   171,    66,   171,   -52,   -52,
-      10,   -52,   171,    90,   -52,   -52,   -52,   -52,    27,    54,
-     -52,    64,   -52,   171,   -52,   171,    73,    74,    75,    50,
-     -52,   171,    79,    86,   -52,    75,   -52,   171,   171,   -52,
-     171,   171,   -52,   -52,   -52,   -52,   171,   -52,   -52,   -52,
-     -52,    58,   -52,   -52
+      16,    77,     8,     7,   -54,   109,    -5,   -54,    22,   -54,
+      24,   131,   109,    38,   -54,   -54,    44,   -54,   -54,     6,
+     -54,   -54,   -54,   -54,   -54,   109,   -54,   -54,   -54,   -54,
+     -54,   -54,   -54,    68,   -54,   210,   175,   -54,   -54,     5,
+     109,   -54,   -54,   -54,   -54,   -54,   -54,   109,   175,   -54,
+       0,    68,   -54,   -28,   -54,    15,    43,   175,    79,   210,
+     131,   131,   -54,    36,   175,    75,   -54,   -54,   -54,   -54,
+     -54,   -54,   -54,   153,   -54,    53,   -54,    56,    68,    85,
+     217,   109,   131,    62,   -54,   -54,    38,   175,    -3,    50,
+      87,   -10,   131,   131,   153,   -54,   -54,   175,    83,   -54,
+      86,   175,   -54,   -54,    11,   -54,   175,    85,   -54,   -54,
+     -54,   -54,    10,    67,   -54,    80,   -54,   175,   -54,   175,
+      73,    76,    78,    21,   -54,   175,   -54,    88,    81,   -54,
+      78,   -54,   175,   175,   -54,   175,   175,   -54,   -54,   -54,
+     -54,   175,   -54,   -54,   -54,   -54,    27,   -54,   -54
 };
 
 /* YYPGOTO[NTERM-NUM].  */
 static const yytype_int8 yypgoto[] =
 {
-     -52,   -52,   118,   -28,   -52,   113,   -52,    -5,   -10,   -48,
-     -52,   -24,   -51,   -52,   -32,   -52,   -52,   -52,   -52,   -52,
-      38,     4,   -52,   -52
+     -54,   -54,   113,   -23,   -54,   117,   -54,   -11,    -8,   -38,
+     -54,   -25,   -53,   -54,   -34,   -54,   -54,   -54,   -54,   -54,
+      40,     3,   -54,   -54
 };
 
 /* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
    positive, shift that token.  If negative, reduce the rule which
    number is the opposite.  If zero, do what YYDEFACT says.
    If YYTABLE_NINF, syntax error.  */
-#define YYTABLE_NINF -71
+#define YYTABLE_NINF -74
 static const yytype_int16 yytable[] =
 {
-      58,    48,     4,    72,    61,    88,     5,    50,   -70,    11,
-      92,     6,    79,    17,    73,    12,   123,     4,    38,    57,
-      83,     5,    82,    78,    84,   114,     6,    39,    46,   115,
-     102,    40,     6,    51,    76,    74,    13,   124,    85,    96,
-      54,    77,    75,    80,     1,     2,    41,    98,   101,    93,
-      94,    87,    40,   105,    42,    43,    72,    99,   110,   126,
-      95,   107,   130,   127,   131,    55,    56,    41,   118,    40,
-     104,   120,   100,   122,   103,    42,    43,   121,   125,   109,
-     116,   117,   135,   111,    41,    40,   136,    59,    60,   128,
-     143,   129,    42,    43,   127,    90,    91,   137,    72,    72,
-      41,    59,    60,   140,   107,   132,   133,   134,    42,    43,
-      18,   138,   142,   139,    19,    20,    21,    22,    23,   112,
-      14,    45,   106,   113,    25,    26,    27,    28,    29,    30,
-      31,    18,   141,     0,     0,    19,    20,    21,    22,    23,
-       0,     0,     0,    24,     0,    25,    26,    27,    28,    29,
-      30,    31,    18,     0,     0,     0,    19,    20,    21,    22,
-      23,     0,     0,     0,    47,     0,    25,    26,    27,    28,
-      29,    30,    31,    18,     0,     0,     0,    19,    20,    21,
-      22,    23,     0,     0,     0,    97,     0,    25,    26,    27,
-      28,    29,    30,    31,    18,     0,     0,     0,    19,    20,
-      21,    22,    23,     0,     0,     0,     0,     0,    25,    26,
-      27,    28,    29,    30,    31,    62,     0,    63,    64,    65,
-      66,    67,    68,    69,    70,    64,    65,    66,    67,    68,
-      69,    70
+      59,    51,    74,    49,    90,    81,    41,    17,    85,     4,
+      62,    75,    86,     5,    58,   -73,    11,   128,     6,     1,
+       2,    94,    12,    80,    42,    39,   118,    40,    84,    78,
+     119,    41,     6,    43,    44,    76,    79,   113,    47,    98,
+      82,   129,   106,    77,    56,    57,   131,    13,   102,    42,
+     132,    55,    95,    96,    87,   105,    74,   140,    43,    44,
+     109,   141,   111,   148,   135,   114,   136,   132,    52,   122,
+     107,    41,   124,    89,   108,    97,   127,    41,     4,    60,
+      61,   130,     5,   103,   120,   121,   104,     6,   115,    42,
+      92,    93,    99,   100,   125,    42,    60,    61,    43,    44,
+     142,    74,    74,   126,    43,    44,   133,   145,   111,   137,
+     134,   144,   138,    18,   139,    14,   147,    19,    20,    21,
+      22,    23,    24,   116,   143,    46,   110,   117,    26,    27,
+      28,    29,    30,    31,    32,    18,   146,     0,     0,    19,
+      20,    21,    22,    23,    24,     0,     0,     0,    25,     0,
+      26,    27,    28,    29,    30,    31,    32,    18,     0,     0,
+       0,    19,    20,    21,    22,    23,    24,     0,     0,     0,
+      48,     0,    26,    27,    28,    29,    30,    31,    32,    18,
+       0,     0,     0,    19,    20,    21,    22,    23,    24,     0,
+       0,     0,   101,     0,    26,    27,    28,    29,    30,    31,
+      32,    18,     0,     0,     0,    19,    20,    21,    22,    23,
+      24,     0,     0,     0,     0,     0,    26,    27,    28,    29,
+      30,    31,    32,    63,     0,    64,    65,     0,     0,    66,
+      67,    68,    69,    70,    71,    72,    66,    67,    68,    69,
+      70,    71,    72
 };
 
 static const yytype_int16 yycheck[] =
 {
-      24,    11,     1,    35,    32,    56,     5,    12,     7,     8,
-      58,    10,     5,     0,     6,    14,     6,     1,    27,    24,
-      32,     5,    50,    47,    36,    32,    10,     5,    14,    36,
-      78,     9,    10,    27,    39,    27,    35,    27,    35,    63,
-       7,    46,    34,    36,     3,     4,    24,    71,    76,    59,
-      60,    27,     9,    81,    32,    33,    88,    27,    86,    32,
-      35,    85,   113,    36,   115,    34,    35,    24,    92,     9,
-      80,    95,    27,    97,    79,    32,    33,    11,   102,    36,
-      90,    91,    32,    34,    24,     9,    36,    11,    12,    35,
-      32,    27,    32,    33,    36,    11,    12,   121,   130,   131,
-      24,    11,    12,   127,   128,    32,    32,    32,    32,    33,
-      23,    32,   136,    27,    27,    28,    29,    30,    31,    32,
-       2,     8,    84,    36,    37,    38,    39,    40,    41,    42,
-      43,    23,   128,    -1,    -1,    27,    28,    29,    30,    31,
-      -1,    -1,    -1,    35,    -1,    37,    38,    39,    40,    41,
-      42,    43,    23,    -1,    -1,    -1,    27,    28,    29,    30,
-      31,    -1,    -1,    -1,    35,    -1,    37,    38,    39,    40,
-      41,    42,    43,    23,    -1,    -1,    -1,    27,    28,    29,
-      30,    31,    -1,    -1,    -1,    35,    -1,    37,    38,    39,
-      40,    41,    42,    43,    23,    -1,    -1,    -1,    27,    28,
-      29,    30,    31,    -1,    -1,    -1,    -1,    -1,    37,    38,
-      39,    40,    41,    42,    43,    13,    -1,    15,    16,    17,
-      18,    19,    20,    21,    22,    16,    17,    18,    19,    20,
-      21,    22
+      25,    12,    36,    11,    57,     5,     9,     0,    36,     1,
+      33,     6,    40,     5,    25,     7,     8,     6,    10,     3,
+       4,    59,    14,    48,    27,    30,    36,     5,    51,    40,
+      40,     9,    10,    36,    37,    30,    47,    40,    14,    64,
+      40,    30,    80,    38,    38,    39,    36,    39,    73,    27,
+      40,     7,    60,    61,    39,    78,    90,    36,    36,    37,
+      83,    40,    87,    36,   117,    88,   119,    40,    30,    94,
+      81,     9,    97,    30,    82,    39,   101,     9,     1,    11,
+      12,   106,     5,    30,    92,    93,    30,    10,    38,    27,
+      11,    12,    17,    18,    11,    27,    11,    12,    36,    37,
+     125,   135,   136,    17,    36,    37,    39,   132,   133,    36,
+      30,    30,    36,    26,    36,     2,   141,    30,    31,    32,
+      33,    34,    35,    36,    36,     8,    86,    40,    41,    42,
+      43,    44,    45,    46,    47,    26,   133,    -1,    -1,    30,
+      31,    32,    33,    34,    35,    -1,    -1,    -1,    39,    -1,
+      41,    42,    43,    44,    45,    46,    47,    26,    -1,    -1,
+      -1,    30,    31,    32,    33,    34,    35,    -1,    -1,    -1,
+      39,    -1,    41,    42,    43,    44,    45,    46,    47,    26,
+      -1,    -1,    -1,    30,    31,    32,    33,    34,    35,    -1,
+      -1,    -1,    39,    -1,    41,    42,    43,    44,    45,    46,
+      47,    26,    -1,    -1,    -1,    30,    31,    32,    33,    34,
+      35,    -1,    -1,    -1,    -1,    -1,    41,    42,    43,    44,
+      45,    46,    47,    13,    -1,    15,    16,    -1,    -1,    19,
+      20,    21,    22,    23,    24,    25,    19,    20,    21,    22,
+      23,    24,    25
 };
 
 /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
    symbol of state STATE-NUM.  */
 static const yytype_uint8 yystos[] =
 {
-       0,     3,     4,    45,     1,     5,    10,    46,    48,    49,
-      50,     8,    14,    35,    46,    60,    62,     0,    23,    27,
-      28,    29,    30,    31,    35,    37,    38,    39,    40,    41,
-      42,    43,    51,    52,    55,    56,    58,    59,    27,     5,
-       9,    24,    32,    33,    47,    49,    14,    35,    52,    66,
-      51,    27,    63,    64,     7,    34,    35,    51,    55,    11,
-      12,    47,    13,    15,    16,    17,    18,    19,    20,    21,
-      22,    53,    58,     6,    27,    34,    51,    51,    55,     5,
-      36,    67,    47,    32,    36,    35,    61,    27,    56,    57,
-      11,    12,    53,    52,    52,    35,    55,    35,    55,    27,
-      27,    47,    53,    51,    52,    47,    64,    55,    65,    36,
-      47,    34,    32,    36,    32,    36,    52,    52,    55,    54,
-      55,    11,    55,     6,    27,    55,    32,    36,    35,    27,
-      56,    56,    32,    32,    32,    32,    36,    55,    32,    27,
-      55,    65,    55,    32
+       0,     3,     4,    49,     1,     5,    10,    50,    52,    53,
+      54,     8,    14,    39,    50,    64,    66,     0,    26,    30,
+      31,    32,    33,    34,    35,    39,    41,    42,    43,    44,
+      45,    46,    47,    55,    56,    59,    60,    62,    63,    30,
+       5,     9,    27,    36,    37,    51,    53,    14,    39,    56,
+      70,    55,    30,    67,    68,     7,    38,    39,    55,    59,
+      11,    12,    51,    13,    15,    16,    19,    20,    21,    22,
+      23,    24,    25,    57,    62,     6,    30,    38,    55,    55,
+      59,     5,    40,    71,    51,    36,    40,    39,    65,    30,
+      60,    61,    11,    12,    57,    56,    56,    39,    59,    17,
+      18,    39,    59,    30,    30,    51,    57,    55,    56,    51,
+      68,    59,    69,    40,    51,    38,    36,    40,    36,    40,
+      56,    56,    59,    58,    59,    11,    17,    59,     6,    30,
+      59,    36,    40,    39,    30,    60,    60,    36,    36,    36,
+      36,    40,    59,    36,    30,    59,    69,    59,    36
 };
 
 #define yyerrok		(yyerrstatus = 0)
@@ -2003,47 +2107,47 @@ YYLTYPE yylloc;
 
   case 31:
 
-    { (yyval.func) = F_COMP_EQ; ;}
+    { (yyval.relation) = NULL; ;}
     break;
 
   case 32:
 
-    { (yyval.func) = F_COMP_NSEQ; ;}
+    { (yyval.relation) = NULL; ;}
     break;
 
   case 33:
 
-    { (yyval.func) = F_COMP_GE; ;}
+    { (yyval.func) = F_COMP_EQ; ;}
     break;
 
   case 34:
 
-    { (yyval.func) = F_COMP_GT; ;}
+    { (yyval.func) = F_COMP_NSEQ; ;}
     break;
 
   case 35:
 
-    { (yyval.func) = F_COMP_LE; ;}
+    { (yyval.func) = F_COMP_GE; ;}
     break;
 
   case 36:
 
-    { (yyval.func) = F_COMP_LT; ;}
+    { (yyval.func) = F_COMP_GT; ;}
     break;
 
   case 37:
 
-    { (yyval.func) = F_COMP_NE; ;}
+    { (yyval.func) = F_COMP_LE; ;}
     break;
 
   case 38:
 
-    { (yyval.list) = (yyvsp[(1) - (1)].list); ;}
+    { (yyval.func) = F_COMP_LT; ;}
     break;
 
   case 39:
 
-    { (yyval.list) = (yyvsp[(1) - (3)].list); add_token_list((yyvsp[(1) - (3)].list), (yyvsp[(3) - (3)].list)); ;}
+    { (yyval.func) = F_COMP_NE; ;}
     break;
 
   case 40:
@@ -2053,31 +2157,41 @@ YYLTYPE yylloc;
 
   case 41:
 
-    { malloc_list((yyval.list), result, (yyvsp[(1) - (1)].node)); ;}
+    { (yyval.list) = (yyvsp[(1) - (3)].list); add_token_list((yyvsp[(1) - (3)].list), (yyvsp[(3) - (3)].list)); ;}
     break;
 
   case 42:
 
-    { add_token((yyvsp[(1) - (2)].list), result, (yyvsp[(2) - (2)].node)); (yyval.list) = (yyvsp[(1) - (2)].list); ;}
+    { (yyval.list) = (yyvsp[(1) - (1)].list); ;}
     break;
 
   case 43:
 
-    { (yyval.list) = NULL; ;}
+    { malloc_list((yyval.list), result, (yyvsp[(1) - (1)].node)); ;}
     break;
 
   case 44:
 
-    { add_token_list((yyvsp[(1) - (3)].list), (yyvsp[(3) - (3)].list)); (yyval.list) = (yyvsp[(1) - (3)].list); ;}
+    { add_token((yyvsp[(1) - (2)].list), result, (yyvsp[(2) - (2)].node)); (yyval.list) = (yyvsp[(1) - (2)].list); ;}
     break;
 
   case 45:
 
-    { add_token_list((yyvsp[(1) - (3)].list), (yyvsp[(3) - (3)].list)); (yyval.list) = (yyvsp[(1) - (3)].list); ;}
+    { (yyval.list) = NULL; ;}
     break;
 
   case 46:
 
+    { add_token_list((yyvsp[(1) - (3)].list), (yyvsp[(3) - (3)].list)); (yyval.list) = (yyvsp[(1) - (3)].list); ;}
+    break;
+
+  case 47:
+
+    { add_token_list((yyvsp[(1) - (3)].list), (yyvsp[(3) - (3)].list)); (yyval.list) = (yyvsp[(1) - (3)].list); ;}
+    break;
+
+  case 48:
+
     {
        malloc_node((yyval.node), result, TOKEN_COLUMN);
        (yyval.node)->part_key_idx_ = 0;
@@ -2086,7 +2200,7 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 47:
+  case 49:
 
     {
        malloc_node((yyval.node), result, TOKEN_COLUMN);
@@ -2095,7 +2209,7 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 48:
+  case 50:
 
     {
        malloc_node((yyval.node), result, TOKEN_COLUMN);
@@ -2104,7 +2218,7 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 49:
+  case 51:
 
     {
        malloc_node((yyval.node), result, TOKEN_COLUMN);
@@ -2113,7 +2227,15 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 50:
+  case 52:
+
+    {
+       malloc_node((yyval.node), result, TOKEN_FUNC);
+       (yyval.node)->str_value_ = (yyvsp[(1) - (1)].str);
+     ;}
+    break;
+
+  case 53:
 
     {
        malloc_node((yyval.node), result, TOKEN_FUNC);
@@ -2122,7 +2244,7 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 51:
+  case 54:
 
     {
        malloc_node((yyval.node), result, TOKEN_FUNC);
@@ -2131,22 +2253,22 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 52:
+  case 55:
 
     { malloc_node((yyval.node), result, TOKEN_INT_VAL); (yyval.node)->int_value_ = (yyvsp[(1) - (1)].num); ;}
     break;
 
-  case 53:
+  case 56:
 
     { malloc_node((yyval.node), result, TOKEN_STR_VAL); (yyval.node)->str_value_ = (yyvsp[(1) - (1)].str); ;}
     break;
 
-  case 54:
+  case 57:
 
     { malloc_node((yyval.node), result, TOKEN_OPERATOR); (yyval.node)->operator_ = (yyvsp[(1) - (1)].operator); ;}
     break;
 
-  case 55:
+  case 58:
 
     {
        result->placeholder_list_idx_++;
@@ -2155,7 +2277,7 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 56:
+  case 59:
 
     {
        malloc_node((yyval.node), result, TOKEN_PLACE_HOLDER);
@@ -2163,71 +2285,76 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 57:
+  case 60:
 
     { (yyval.operator) = OPT_ADD; ;}
     break;
 
-  case 58:
+  case 61:
 
     { (yyval.operator) = OPT_MINUS; ;}
     break;
 
-  case 59:
+  case 62:
 
     { (yyval.operator) = OPT_MUL; ;}
     break;
 
-  case 60:
+  case 63:
 
     { (yyval.operator) = OPT_DIV; ;}
     break;
 
-  case 61:
+  case 64:
 
     { (yyval.operator) = OPT_MOD; ;}
     break;
 
-  case 62:
+  case 65:
 
     { (yyval.operator) = OPT_AND; ;}
     break;
 
-  case 63:
+  case 66:
 
     { (yyval.operator) = OPT_NOT; ;}
     break;
 
-  case 64:
+  case 67:
 
     { YYACCEPT; ;}
     break;
 
-  case 65:
+  case 68:
 
     { YYACCEPT; ;}
     break;
 
-  case 66:
+  case 69:
 
     { YYACCEPT; ;}
     break;
 
-  case 68:
+  case 71:
 
     {
                    result->multi_param_values_++;
                  ;}
     break;
 
-  case 69:
+  case 72:
 
     {
                    result->multi_param_values_++;
                  ;}
     break;
 
-  case 72:
+  case 73:
+
+    { init_part_key_all_match(result);;}
+    break;
+
+  case 75:
 
     {
                           malloc_list((yyval.list), result, (yyvsp[(1) - (1)].node));
@@ -2235,7 +2362,7 @@ YYLTYPE yylloc;
                         ;}
     break;
 
-  case 73:
+  case 76:
 
     {
                                 malloc_list((yyval.list), result, (yyvsp[(3) - (3)].node));
@@ -2243,7 +2370,7 @@ YYLTYPE yylloc;
                               ;}
     break;
 
-  case 74:
+  case 77:
 
     {
                       set_part_key_column_idx(result, &(yyvsp[(1) - (1)].str));
@@ -2253,7 +2380,7 @@ YYLTYPE yylloc;
                     ;}
     break;
 
-  case 75:
+  case 78:
 
     {
                   if (result->multi_param_values_ < 1) {
@@ -2266,7 +2393,7 @@ YYLTYPE yylloc;
                 ;}
     break;
 
-  case 76:
+  case 79:
 
     {
                   if (result->multi_param_values_ < 1) {
@@ -2278,17 +2405,17 @@ YYLTYPE yylloc;
                 ;}
     break;
 
-  case 77:
+  case 80:
 
     { check_and_add_relation(result, (yyvsp[(1) - (1)].relation)); ;}
     break;
 
-  case 78:
+  case 81:
 
     { check_and_add_relation(result, (yyvsp[(3) - (3)].relation)); ;}
     break;
 
-  case 80:
+  case 83:
 
     {;}
     break;
diff --git a/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_tab.h b/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_tab.h
index 8c63ec12..9c8c5a66 100644
--- a/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_tab.h
+++ b/src/obproxy/opsql/expr_parser/ob_expr_parser_gbk_tab.h
@@ -69,22 +69,26 @@ extern int ob_expr_parser_gbk_yydebug;
      IN = 268,
      ON = 269,
      BETWEEN = 270,
-     COMP_EQ = 271,
-     COMP_NSEQ = 272,
-     COMP_GE = 273,
-     COMP_GT = 274,
-     COMP_LE = 275,
-     COMP_LT = 276,
-     COMP_NE = 277,
-     PLACE_HOLDER = 278,
-     END_P = 279,
-     ERROR = 280,
-     IGNORED_WORD = 281,
-     NAME_OB = 282,
-     STR_VAL = 283,
-     ROW_ID = 284,
-     INT_VAL = 285,
-     POS_PLACE_HOLDER = 286
+     IS = 271,
+     TOKEN_NULL = 272,
+     NOT = 273,
+     COMP_EQ = 274,
+     COMP_NSEQ = 275,
+     COMP_GE = 276,
+     COMP_GT = 277,
+     COMP_LE = 278,
+     COMP_LT = 279,
+     COMP_NE = 280,
+     PLACE_HOLDER = 281,
+     END_P = 282,
+     ERROR = 283,
+     IGNORED_WORD = 284,
+     NAME_OB = 285,
+     STR_VAL = 286,
+     ROW_ID = 287,
+     REVERSED_EXPR_FUNC = 288,
+     INT_VAL = 289,
+     POS_PLACE_HOLDER = 290
    };
 #endif
 
diff --git a/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_lex.c b/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_lex.c
index 59356d32..c9ed9c7b 100644
--- a/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_lex.c
+++ b/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_lex.c
@@ -348,8 +348,8 @@ static void yy_fatal_error (yyconst char msg[] ,yyscan_t yyscanner );
 	yyg->yy_hold_char = *yy_cp; \
 	yyg->yy_c_buf_p = yy_cp;
 
-#define YY_NUM_RULES 57
-#define YY_END_OF_BUFFER 58
+#define YY_NUM_RULES 61
+#define YY_END_OF_BUFFER 62
 /* This struct is not used in this scanner,
    but its presence is necessary. */
 struct yy_trans_info
@@ -357,30 +357,38 @@ struct yy_trans_info
 	flex_int32_t yy_verify;
 	flex_int32_t yy_nxt;
 	};
-static yyconst flex_int16_t yy_accept[197] =
+static yyconst flex_int16_t yy_accept[279] =
     {   0,
-       30,   30,    0,    0,    0,    0,    0,    0,    0,    0,
-       58,   56,   31,   31,   35,   46,   31,   30,   35,   35,
-       40,   33,   34,   35,   32,   35,   35,   35,   28,   35,
-       24,   19,   22,   26,   30,   30,   30,   30,   30,   30,
-       30,   30,   30,   30,   30,   30,   30,   52,   35,   56,
-       56,   39,   38,   39,   41,   42,   57,   47,   48,   57,
-       54,   55,   31,    0,   25,   31,   30,   15,   28,    0,
-        0,   28,   29,   36,   29,   28,   30,    0,   27,   23,
-       21,   30,    2,   30,   30,   30,   30,   18,   30,   30,
-       12,   16,   30,   30,   30,   30,   17,    0,    0,    0,
-
-       37,   41,    0,    0,   43,    0,    0,   44,   47,    0,
-       49,    0,    0,    0,   50,   54,   53,   31,    0,    0,
-        0,   29,    0,    0,   29,   20,   14,   30,    6,   30,
-       30,   30,   30,   30,    5,   30,   30,   33,   34,   32,
-       45,    0,   45,    0,    0,   51,    0,   51,    0,    0,
-       31,   31,   31,    0,   29,    0,   29,    0,   29,   30,
-       30,   30,   11,   30,   30,   30,   30,    0,    0,    0,
-        0,   31,   30,    8,   30,    7,   10,    4,    1,    0,
-        0,   45,    0,    0,    0,    0,   51,    0,    0,   30,
-        9,    3,    0,    0,   13,    0
-
+       34,   34,    0,    0,    0,    0,    0,    0,    0,    0,
+       62,   60,   35,   35,   39,   50,   35,   34,   39,   39,
+       44,   37,   38,   39,   36,   39,   39,   39,   32,   39,
+       27,   22,   25,   29,   34,   34,   34,   34,   34,   34,
+       34,   34,   34,   34,   34,   34,   34,   34,   56,   39,
+       60,   60,   43,   42,   43,   45,   46,   61,   51,   52,
+       61,   58,   59,   35,    0,   28,   35,   34,   15,   32,
+        0,    0,   32,   33,   40,   33,   32,   34,    0,   30,
+       26,   24,   34,    2,   34,   34,   34,   34,   18,   19,
+       34,   34,   34,   34,   12,   16,   34,   34,   34,   34,
+
+       34,   17,    0,    0,    0,   41,   45,    0,    0,   47,
+        0,    0,   48,   51,    0,   53,    0,    0,    0,   54,
+       58,   57,   32,   35,    0,   32,    0,    0,   33,    0,
+       32,    0,   33,   30,   23,   14,   34,    6,   34,   34,
+       34,   34,   21,   34,   34,    5,   34,   34,   34,   37,
+       38,   36,   49,    0,   49,    0,    0,   55,    0,   55,
+        0,    0,   32,   35,   35,   35,    0,   32,   33,    0,
+       33,    0,   33,   32,   30,   34,   34,   34,   11,   34,
+       20,   34,   34,   34,   34,    0,    0,    0,    0,   32,
+       35,   32,   32,   30,   34,    8,   34,    7,   10,   34,
+
+        4,    1,    0,    0,   49,    0,    0,    0,    0,   55,
+        0,    0,   32,   32,   32,   30,   34,    9,   34,    3,
+        0,    0,   32,   32,   32,   30,   13,   31,   32,   32,
+       32,   30,   32,   32,   32,   30,   32,   32,   32,   30,
+       32,   32,   32,   30,   32,   32,   32,   30,   32,   32,
+       32,   30,   32,   32,   32,   30,   32,   32,   32,   30,
+       32,   32,   32,   30,   32,   32,   32,   30,   32,   32,
+       33,   30,   33,   33,   33,   33,   33,    0
     } ;
 
 static yyconst flex_int32_t yy_ec[256] =
@@ -393,167 +401,204 @@ static yyconst flex_int32_t yy_ec[256] =
        20,   20,   20,   20,   20,   20,   20,   21,    9,   22,
        23,   24,   25,    9,   26,   27,    8,   28,   29,   30,
        31,   32,   33,   34,    8,   35,   36,   37,   38,   39,
-        8,   40,   41,   42,   43,   44,   45,    8,    8,    8,
-        1,   46,    1,    9,    8,   47,   48,   49,    8,   50,
+        8,   40,   41,   42,   43,   44,   45,    8,   46,    8,
+        1,   47,    1,    9,    8,   48,   49,   50,    8,   51,
 
-       51,   52,   53,   54,   55,   56,    8,   57,   58,   59,
-       60,   61,    8,   62,   63,   64,   65,   66,   67,    8,
-        8,    8,    1,   68,    1,    9,    1,   69,    1,    1,
-        1,    1,    1,    1,    1,   70,   71,    1,    1,   72,
+       52,   53,   54,   55,   56,   57,    8,   58,   59,   60,
+       61,   62,    8,   63,   64,   65,   66,   67,   68,    8,
+       69,    8,    1,   70,    1,    9,    1,   71,    1,    1,
+        1,    1,    1,    1,    1,   72,   73,    1,    1,   74,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,   73,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,   75,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
 
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,   74,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,   75,    1,
+        1,    1,    1,    1,    1,    1,   76,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,   77,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1
     } ;
 
-static yyconst flex_int32_t yy_meta[76] =
+static yyconst flex_int32_t yy_meta[78] =
     {   0,
         1,    1,    2,    2,    1,    3,    1,    4,    1,    1,
         5,    1,    1,    1,    1,    1,    1,    1,    1,    4,
         1,    1,    1,    1,    1,    4,    4,    4,    4,    4,
         4,    4,    4,    4,    4,    4,    4,    4,    4,    4,
-        4,    4,    4,    4,    4,    6,    7,    4,    4,    4,
+        4,    4,    4,    4,    4,    4,    6,    7,    4,    4,
         4,    4,    4,    4,    4,    4,    4,    4,    4,    4,
-        4,    4,    4,    4,    4,    4,    4,    1,    1,    1,
-        1,    1,    1,    1,    1
+        4,    4,    4,    4,    4,    4,    4,    4,    4,    1,
+        1,    1,    1,    1,    1,    1,    1
     } ;
 
-static yyconst flex_int16_t yy_base[213] =
+static yyconst flex_int16_t yy_base[295] =
     {   0,
-        0,    0,   73,   74,   67,   68,   74,   75,  330,  329,
-      375,  517,   80,   87,  351,  517,    0,    0,  517,  363,
-      517,  517,  517,  352,  517,   75,  351,  356,   76,   82,
-       62,  517,  346,  517,   63,   72,   65,   66,   81,   71,
-       71,   77,   75,   73,   87,   91,   86,  517,  300,  297,
-      292,  517,  517,  105,    0,  139,    0,    0,  145,    0,
-        0,  317,  155,  294,  517,    0,    0,  517,  342,  161,
-      341,  148,  116,  517,  124,  151,  159,  340,  339,  334,
-      517,  132,    0,  128,  132,  135,  134,    0,  148,  147,
-        0,    0,  139,  143,  151,  158,  517,  288,  118,  177,
-
-      517,    0,  212,  345,  517,  338,  285,  517,    0,  218,
-      517,  347,  334,  281,  517,    0,  517,  208,  273,  210,
-      211,  212,  219,  318,  311,  517,    0,  173,    0,  190,
-      204,  201,  209,  210,    0,  201,  205,  517,  517,  517,
-      517,  312,  306,  244,  247,  517,  296,  294,  247,  229,
-      194,  250,  253,  220,  268,  255,  250,  197,  184,  229,
-      222,  225,    0,  226,  241,  242,  243,  274,  132,  293,
-      124,  270,  250,    0,  250,    0,    0,  246,    0,  301,
-      304,  316,  322,   86,  307,  326,  331,  337,   66,  277,
-        0,    0,  341,  343,    0,  517,  412,  419,  426,  433,
-
-      440,   94,  447,  454,  461,  468,  475,  481,  488,  495,
-      502,  509
+        0,    0,   75,   76,   69,   70,   76,   77,  533,  532,
+      579,  696,   82,   89,  555,  696,    0,    0,  696,  566,
+      696,  696,  696,  555,  696,   77,  552,  557,   78,   84,
+       64,  696,  547,  696,   65,   74,   67,   68,   83,   73,
+       73,   79,   75,   82,   77,   98,   94,  107,  696,  499,
+      496,  491,  696,  696,  132,    0,  152,    0,    0,  168,
+        0,    0,  517,  145,  493,  696,    0,    0,  696,  543,
+      174,  542,  161,  132,  696,  137,  162,  177,  541,  540,
+      532,  696,  132,    0,  122,  133,  148,  144,    0,    0,
+      160,  159,  157,  165,    0,    0,  156,  160,  162,  169,
+
+      177,  696,  482,  158,  191,  696,    0,  231,  538,  696,
+      530,  475,  696,    0,  234,  696,  538,  520,  465,  696,
+        0,  696,  511,  243,  457,  223,  200,  234,  219,  238,
+      239,  507,  502,  499,  696,    0,  211,    0,  217,  228,
+      225,  230,    0,  229,  232,    0,  238,  224,  229,  696,
+      696,  696,  696,  497,  492,  270,  424,  696,  485,  482,
+      274,  416,  464,  204,  278,  290,  396,  277,  442,  437,
+      435,  434,  433,  280,  430,  270,  262,  265,    0,  261,
+        0,  276,  279,  279,  282,  310,  375,  314,  372,  422,
+      332,  319,  320,  419,  301,    0,  302,    0,    0,  299,
+
+      301,    0,  340,  355,  359,  364,  366,  370,  375,  379,
+      385,  362,  406,  375,  376,  403,  332,    0,  355,    0,
+      395,  405,  402,  392,  395,  399,    0,    0,  397,  396,
+      400,  382,  381,  412,  416,  380,  377,  420,  440,  367,
+      360,  441,  445,  340,  335,  453,  457,  332,  327,  460,
+      461,  325,  303,  465,  478,  295,  276,  481,  482,  250,
+      199,  486,  496,  192,  178,  500,  503,  148,  133,  506,
+      521,  696,  120,  522,  525,  101,  539,  696,  591,  598,
+      605,  612,  619,   96,  626,  633,  640,  647,  654,  660,
+      667,  674,  681,  688
+
     } ;
 
-static yyconst flex_int16_t yy_def[213] =
+static yyconst flex_int16_t yy_def[295] =
     {   0,
-      196,    1,  197,  197,  198,  198,  199,  199,  200,  200,
-      196,  196,  196,  196,  196,  196,  201,  202,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  202,  196,
-      196,  196,  196,  196,  202,  202,  202,  202,  202,  202,
-      202,  202,  202,  202,  202,  202,  202,  196,  196,  196,
-      196,  196,  196,  196,  203,  196,  204,  205,  196,  206,
-      207,  196,  196,  196,  196,  201,  202,  196,  196,  196,
-      196,  196,  196,  196,  196,  202,  202,  196,  196,  196,
-      196,  202,  202,  202,  202,  202,  202,  202,  202,  202,
-      202,  202,  202,  202,  202,  202,  196,  196,  196,  196,
-
-      196,  203,  196,  208,  196,  196,  196,  196,  205,  196,
-      196,  209,  196,  196,  196,  207,  196,  210,  196,  196,
-      196,  196,  196,  196,  202,  196,  202,  202,  202,  202,
-      202,  202,  202,  202,  202,  202,  202,  196,  196,  196,
-      196,  208,  208,  196,  196,  196,  209,  209,  196,  196,
-      210,  210,  210,  196,  196,  196,  196,  196,  196,  202,
-      202,  202,  202,  202,  202,  202,  202,  211,  196,  212,
-      196,  210,  202,  202,  202,  202,  202,  202,  202,  211,
-      211,  211,  211,  196,  212,  212,  212,  212,  196,  202,
-      202,  202,  211,  212,  202,    0,  196,  196,  196,  196,
-
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      196,  196
+      278,    1,  279,  279,  280,  280,  281,  281,  282,  282,
+      278,  278,  278,  278,  278,  278,  283,  284,  278,  278,
+      278,  278,  278,  278,  278,  278,  278,  278,  284,  278,
+      278,  278,  278,  278,  284,  284,  284,  284,  284,  284,
+      284,  284,  284,  284,  284,  284,  284,  284,  278,  278,
+      278,  278,  278,  278,  278,  285,  278,  286,  287,  278,
+      288,  289,  278,  278,  278,  278,  283,  284,  278,  278,
+      278,  278,  278,  278,  278,  278,  284,  284,  278,  278,
+      278,  278,  284,  284,  284,  284,  284,  284,  284,  284,
+      284,  284,  284,  284,  284,  284,  284,  284,  284,  284,
+
+      284,  278,  278,  278,  278,  278,  285,  278,  290,  278,
+      278,  278,  278,  287,  278,  278,  291,  278,  278,  278,
+      289,  278,  278,  292,  278,  278,  278,  278,  278,  278,
+      284,  278,  284,  278,  278,  284,  284,  284,  284,  284,
+      284,  284,  284,  284,  284,  284,  284,  284,  284,  278,
+      278,  278,  278,  290,  290,  278,  278,  278,  291,  291,
+      278,  278,  278,  292,  292,  292,  278,  278,  278,  278,
+      278,  278,  278,  284,  278,  284,  284,  284,  284,  284,
+      284,  284,  284,  284,  284,  293,  278,  294,  278,  278,
+      292,  278,  284,  278,  284,  284,  284,  284,  284,  284,
+
+      284,  284,  293,  293,  293,  293,  278,  294,  294,  294,
+      294,  278,  278,  278,  284,  278,  284,  284,  284,  284,
+      293,  294,  278,  278,  284,  278,  284,  284,  278,  278,
+      284,  278,  278,  278,  284,  278,  278,  278,  284,  278,
+      278,  278,  284,  278,  278,  278,  284,  278,  278,  278,
+      284,  278,  278,  278,  284,  278,  278,  278,  284,  278,
+      278,  278,  284,  278,  278,  278,  284,  278,  278,  278,
+      284,  278,  278,  278,  284,  278,  278,    0,  278,  278,
+      278,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      278,  278,  278,  278
+
     } ;
 
-static yyconst flex_int16_t yy_nxt[593] =
+static yyconst flex_int16_t yy_nxt[774] =
     {   0,
        12,   13,   14,   13,   15,   16,   17,   18,   19,   20,
        21,   22,   23,   19,   24,   25,   26,   27,   28,   29,
        30,   31,   32,   33,   34,   35,   36,   18,   18,   37,
-       38,   39,   40,   41,   42,   18,   18,   43,   18,   44,
-       45,   18,   18,   46,   47,   12,   48,   35,   36,   18,
-       18,   37,   38,   39,   40,   41,   42,   18,   18,   43,
-       18,   44,   45,   18,   18,   46,   47,   49,   12,   12,
-       12,   12,   12,   50,   51,   53,   53,   56,   56,   59,
-       59,   63,   63,   63,   80,   65,   54,   54,   63,   63,
-       63,   70,   71,   75,   72,   76,   78,   67,   78,   82,
-
-       84,   79,   85,   83,   77,   86,   87,   88,   89,   90,
-       93,   91,   57,   57,   92,   94,   95,   96,  100,   60,
-       60,   82,   84,  101,   85,   83,   77,   86,   87,   88,
-       89,   90,   93,   91,  170,   73,   92,   94,   95,   96,
-      103,  103,  103,  122,  121,  104,  110,  110,  110,  105,
-      111,  112,  123,   64,  168,  106,   63,   63,   63,  127,
-       64,  113,  118,  118,  118,   75,  121,   72,   75,  128,
-       76,  129,  130,  124,  123,  124,  120,  131,  125,   77,
-      132,  127,  133,  134,  135,  136,  137,  138,  139,  140,
-      100,  128,  189,  129,  130,  101,  196,  196,  120,  131,
-
-      184,   77,  132,  159,  133,  134,  135,  136,  137,  152,
-      118,  118,  107,  103,  103,  103,  159,  160,  114,  110,
-      110,  110,  141,  146,  124,  156,  124,  156,   64,  155,
-      157,  122,  161,  158,  119,  158,  162,  163,  159,  160,
-      123,  164,  165,  166,  167,  168,  168,  168,  170,  170,
-      170,  152,  118,  118,  161,  196,  196,  173,  162,  163,
-      174,  175,  123,  164,  165,  166,  167,  176,  177,  157,
-      178,  179,  196,  196,  157,  181,  168,  168,  190,  173,
-      191,  153,  174,  175,  182,  107,  192,  155,  118,  176,
-      177,  114,  178,  179,  186,  170,  170,  110,  187,  148,
-
-      190,  148,  191,  196,  196,  181,  168,  168,  192,  196,
-      196,  182,  187,  195,  182,  103,  143,  169,  196,  196,
-      171,  172,  143,  153,  196,  196,  182,  186,  170,  170,
-      125,  187,  182,  196,  196,  195,  187,  155,  152,  196,
-      196,  154,  187,  196,  196,  196,  196,  183,  187,  150,
-      149,  182,  148,  145,  144,  143,   63,  126,   79,   79,
-       73,   69,   98,  117,   99,   98,  188,   97,   81,   74,
-       73,   69,   68,   65,  196,   62,   62,  183,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      193,  196,  196,  196,  196,  196,  196,  196,  196,  188,
-
-      196,  196,  196,  196,  196,  194,  196,  196,  196,  181,
-      196,  186,   52,   52,   52,   52,   52,   52,   52,   55,
-       55,   55,   55,   55,   55,   55,   58,   58,   58,   58,
-       58,   58,   58,   61,   61,   61,   61,   61,   61,   61,
-       66,  196,   66,   66,   66,   66,   66,  102,  102,  102,
-      102,  196,  196,  102,  108,  108,  108,  108,  108,  108,
-      108,  109,  109,  196,  109,  109,  196,  109,  115,  115,
-      115,  115,  115,  115,  115,  116,  116,  116,  116,  116,
-      116,  142,  196,  142,  142,  142,  142,  142,  147,  196,
-      147,  147,  147,  147,  147,  151,  151,  151,  151,  151,
-
-      151,  151,  180,  180,  180,  180,  180,  180,  180,  185,
-      185,  185,  185,  185,  185,  185,   11,  196,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      196,  196
-
+       38,   39,   40,   41,   42,   18,   43,   44,   18,   45,
+       46,   18,   18,   47,   48,   18,   12,   49,   35,   36,
+       18,   18,   37,   38,   39,   40,   41,   42,   18,   43,
+       44,   18,   45,   46,   18,   18,   47,   48,   18,   50,
+       12,   12,   12,   12,   12,   51,   52,   54,   54,   57,
+       57,   60,   60,   64,   64,   64,   81,   66,   55,   55,
+       64,   64,   64,   71,   72,   76,   73,   77,   79,   68,
+
+       79,   83,   85,   80,   86,   84,   78,   87,   88,   89,
+       91,   92,   93,   90,   97,   58,   58,   94,   95,  100,
+      276,   96,   61,   61,   83,   85,   98,   86,   84,   78,
+       87,   88,   89,   91,   92,   93,   90,   97,  101,  276,
+       94,   95,  100,   99,   96,  105,   64,   64,   64,   98,
+      106,   74,  273,  108,  108,  108,  129,   65,  109,  136,
+      128,  101,  110,  137,   65,  130,   99,  272,  111,  115,
+      115,  115,  138,  116,  117,  124,  124,  124,   76,   76,
+      126,  131,  136,  128,  118,  139,  137,  140,  130,  127,
+       78,  132,  141,  132,  142,  138,  133,  269,  143,  144,
+
+      145,  146,  147,  148,  105,  149,  278,  278,  139,  106,
+      140,  268,  127,   78,  132,  141,  132,  142,  265,  169,
+       65,  143,  144,  145,  146,  147,  148,  112,  149,  150,
+      151,  152,  108,  108,  108,  115,  115,  115,  129,  158,
+       76,  153,  168,  119,  165,  124,  124,  130,  170,  125,
+      170,  127,  172,  171,  172,  176,   76,  173,  174,  177,
+      178,  179,  180,  181,  182,  183,  184,   78,  185,  264,
+      130,  186,  186,  186,  127,  188,  188,  188,  176,  165,
+      124,  124,  177,  178,  179,  180,  181,  182,  183,  184,
+       78,  185,  278,  278,   76,  261,  192,   76,  195,  193,
+
+      196,  197,  198,  199,  200,  127,  112,  201,   78,  119,
+      202,  204,  186,  186,  260,  209,  188,  188,  166,  210,
+      205,  195,  257,  196,  197,  198,  199,  200,  127,  217,
+      201,   78,  218,  202,  278,  278,   76,   76,  214,  215,
+      219,  220,  278,  278,  256,  187,  253,  127,   78,  189,
+      205,  252,  217,  166,  249,  218,  204,  186,  186,  248,
+      191,  278,  278,  219,  220,  205,  278,  278,  227,  205,
+      127,   78,  278,  278,  205,  210,  209,  188,  188,  245,
+      210,  278,  278,  228,  210,  206,  244,  278,  278,  211,
+      210,  227,   76,   76,  224,  225,  241,  278,  278,  240,
+
+      237,  236,  165,  127,   78,  205,  228,  278,  278,   76,
+      210,  230,   76,   76,  231,  234,  233,   76,  232,  235,
+      127,  229,  226,   78,  127,  223,  127,   78,   78,   76,
+      206,  238,  188,   76,  221,  239,  186,   76,  216,  242,
+      127,  213,  212,  127,   78,  207,   78,  127,  127,  194,
+      211,   78,  173,  173,  171,  222,  171,   76,   76,  243,
+      246,  169,   76,  127,  247,  204,  124,   78,   78,  127,
+       76,  127,  250,   78,   76,  209,  251,   76,   76,  254,
+      255,  127,   76,  190,  258,   78,  115,  160,  127,   78,
+      160,   78,  127,  127,  108,   76,   78,  259,   76,   76,
+
+      262,  263,  155,   76,  127,  266,   78,  155,   78,  127,
+       78,  127,   78,   76,  127,  267,  127,   76,  175,  270,
+       76,  133,  271,   76,   78,  274,  169,  167,  127,   78,
+      163,   78,  127,   78,  127,  162,  161,  127,   76,   76,
+      275,  277,   76,  160,  275,  157,  156,   78,  155,   78,
+      127,  127,   64,   78,   78,  135,   76,  127,  277,  134,
+       80,   74,  123,  103,  122,  104,  103,  127,  102,   82,
+       75,   74,   78,  127,   70,   69,   78,   66,  278,   63,
+       63,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      127,   53,   53,   53,   53,   53,   53,   53,   56,   56,
+
+       56,   56,   56,   56,   56,   59,   59,   59,   59,   59,
+       59,   59,   62,   62,   62,   62,   62,   62,   62,   67,
+      278,   67,   67,   67,   67,   67,  107,  107,  107,  107,
+      278,  278,  107,  113,  113,  113,  113,  113,  113,  113,
+      114,  114,  278,  114,  114,  278,  114,  120,  120,  120,
+      120,  120,  120,  120,  121,  121,  121,  121,  121,  121,
+      154,  278,  154,  154,  154,  154,  154,  159,  278,  159,
+      159,  159,  159,  159,  164,  164,  164,  164,  164,  164,
+      164,  203,  203,  203,  203,  203,  203,  203,  208,  208,
+      208,  208,  208,  208,  208,   11,  278,  278,  278,  278,
+
+      278,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      278,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      278,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      278,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      278,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      278,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      278,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      278,  278,  278
     } ;
 
-static yyconst flex_int16_t yy_chk[593] =
+static yyconst flex_int16_t yy_chk[774] =
     {   0,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
@@ -562,65 +607,84 @@ static yyconst flex_int16_t yy_chk[593] =
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    3,    4,    5,    6,    7,
-        8,   13,   13,   13,   31,   31,    3,    4,   14,   14,
-       14,   26,   26,   29,   26,   29,   30,  202,   30,   35,
-
-       36,   30,   37,   35,   29,   38,   39,   40,   41,   42,
-       44,   43,    5,    6,   43,   45,   46,   47,   54,    7,
-        8,   35,   36,   54,   37,   35,   29,   38,   39,   40,
-       41,   42,   44,   43,  189,   73,   43,   45,   46,   47,
-       56,   56,   56,   75,   73,   56,   59,   59,   59,   56,
-       59,   59,   75,   13,  184,   56,   63,   63,   63,   82,
-       14,   59,   70,   70,   70,   72,   73,   72,   76,   84,
-       76,   85,   86,   77,   75,   77,   72,   87,   77,   76,
-       89,   82,   90,   93,   94,   95,   96,   99,   99,   99,
-      100,   84,  171,   85,   86,  100,  151,  151,   72,   87,
-
-      169,   76,   89,  159,   90,   93,   94,   95,   96,  118,
-      118,  118,   56,  103,  103,  103,  158,  128,   59,  110,
-      110,  110,  103,  110,  120,  121,  120,  121,   63,  120,
-      121,  122,  130,  123,   70,  123,  131,  132,  123,  128,
-      122,  133,  134,  136,  137,  144,  144,  144,  149,  149,
-      149,  152,  152,  152,  130,  153,  153,  160,  131,  132,
-      161,  162,  122,  133,  134,  136,  137,  164,  165,  157,
-      166,  167,  172,  172,  156,  168,  168,  168,  173,  160,
-      175,  118,  161,  162,  168,  103,  178,  155,  154,  164,
-      165,  110,  166,  167,  170,  170,  170,  150,  170,  148,
-
-      173,  147,  175,  180,  180,  181,  181,  181,  178,  185,
-      185,  180,  185,  190,  181,  145,  143,  144,  182,  182,
-      149,  153,  142,  152,  183,  183,  182,  186,  186,  186,
-      125,  186,  183,  187,  187,  190,  187,  124,  172,  188,
-      188,  119,  188,  193,  193,  194,  194,  168,  194,  114,
-      113,  193,  112,  107,  106,  104,   98,   80,   79,   78,
-       71,   69,   64,   62,   51,   50,  170,   49,   33,   28,
-       27,   24,   20,   15,   11,   10,    9,  181,    0,    0,
-        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-      183,    0,    0,    0,    0,    0,    0,    0,    0,  186,
-
-        0,    0,    0,    0,    0,  188,    0,    0,    0,  193,
-        0,  194,  197,  197,  197,  197,  197,  197,  197,  198,
-      198,  198,  198,  198,  198,  198,  199,  199,  199,  199,
-      199,  199,  199,  200,  200,  200,  200,  200,  200,  200,
-      201,    0,  201,  201,  201,  201,  201,  203,  203,  203,
-      203,    0,    0,  203,  204,  204,  204,  204,  204,  204,
-      204,  205,  205,    0,  205,  205,    0,  205,  206,  206,
-      206,  206,  206,  206,  206,  207,  207,  207,  207,  207,
-      207,  208,    0,  208,  208,  208,  208,  208,  209,    0,
-      209,  209,  209,  209,  209,  210,  210,  210,  210,  210,
-
-      210,  210,  211,  211,  211,  211,  211,  211,  211,  212,
-      212,  212,  212,  212,  212,  212,  196,  196,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      196,  196,  196,  196,  196,  196,  196,  196,  196,  196,
-      196,  196
-
+        1,    1,    1,    1,    1,    1,    1,    3,    4,    5,
+        6,    7,    8,   13,   13,   13,   31,   31,    3,    4,
+       14,   14,   14,   26,   26,   29,   26,   29,   30,  284,
+
+       30,   35,   36,   30,   37,   35,   29,   38,   39,   40,
+       41,   42,   43,   40,   45,    5,    6,   43,   44,   47,
+      276,   44,    7,    8,   35,   36,   46,   37,   35,   29,
+       38,   39,   40,   41,   42,   43,   40,   45,   48,  273,
+       43,   44,   47,   46,   44,   55,   64,   64,   64,   46,
+       55,   74,  269,   57,   57,   57,   76,   13,   57,   83,
+       74,   48,   57,   85,   14,   76,   46,  268,   57,   60,
+       60,   60,   86,   60,   60,   71,   71,   71,   73,   77,
+       73,   77,   83,   74,   60,   87,   85,   88,   76,   73,
+       77,   78,   91,   78,   92,   86,   78,  265,   93,   94,
+
+       97,   98,   99,  100,  105,  101,  164,  164,   87,  105,
+       88,  264,   73,   77,  127,   91,  127,   92,  261,  127,
+       64,   93,   94,   97,   98,   99,  100,   57,  101,  104,
+      104,  104,  108,  108,  108,  115,  115,  115,  129,  115,
+      126,  108,  126,   60,  124,  124,  124,  129,  128,   71,
+      128,  126,  130,  128,  130,  137,  131,  130,  131,  139,
+      140,  141,  142,  144,  145,  147,  148,  131,  149,  260,
+      129,  156,  156,  156,  126,  161,  161,  161,  137,  165,
+      165,  165,  139,  140,  141,  142,  144,  145,  147,  148,
+      131,  149,  166,  166,  168,  257,  168,  174,  176,  174,
+
+      177,  178,  180,  182,  183,  168,  108,  184,  174,  115,
+      185,  186,  186,  186,  256,  188,  188,  188,  124,  188,
+      186,  176,  253,  177,  178,  180,  182,  183,  168,  195,
+      184,  174,  197,  185,  191,  191,  192,  193,  192,  193,
+      200,  201,  203,  203,  252,  156,  249,  192,  193,  161,
+      203,  248,  195,  165,  245,  197,  204,  204,  204,  244,
+      166,  205,  205,  200,  201,  204,  206,  206,  217,  205,
+      192,  193,  208,  208,  206,  208,  209,  209,  209,  241,
+      209,  210,  210,  219,  210,  186,  240,  211,  211,  188,
+      211,  217,  214,  215,  214,  215,  237,  221,  221,  236,
+
+      233,  232,  191,  214,  215,  221,  219,  222,  222,  224,
+      222,  224,  225,  230,  225,  230,  229,  231,  226,  231,
+      224,  223,  216,  225,  230,  213,  214,  215,  231,  234,
+      204,  234,  212,  235,  206,  235,  207,  238,  194,  238,
+      234,  190,  189,  224,  235,  187,  225,  230,  238,  175,
+      209,  231,  173,  172,  171,  211,  170,  239,  242,  239,
+      242,  169,  243,  234,  243,  221,  167,  235,  239,  242,
+      246,  238,  246,  243,  247,  222,  247,  250,  251,  250,
+      251,  246,  254,  163,  254,  247,  162,  160,  250,  251,
+      159,  239,  242,  254,  157,  255,  243,  255,  258,  259,
+
+      258,  259,  155,  262,  246,  262,  255,  154,  247,  258,
+      259,  250,  251,  263,  262,  263,  254,  266,  134,  266,
+      267,  133,  267,  270,  263,  270,  132,  125,  266,  255,
+      123,  267,  258,  259,  270,  119,  118,  262,  271,  274,
+      271,  274,  275,  117,  275,  112,  111,  263,  109,  271,
+      274,  266,  103,  275,  267,   81,  277,  270,  277,   80,
+       79,   72,   70,   65,   63,   52,   51,  277,   50,   33,
+       28,   27,  271,  274,   24,   20,  275,   15,   11,   10,
+        9,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+      277,  279,  279,  279,  279,  279,  279,  279,  280,  280,
+
+      280,  280,  280,  280,  280,  281,  281,  281,  281,  281,
+      281,  281,  282,  282,  282,  282,  282,  282,  282,  283,
+        0,  283,  283,  283,  283,  283,  285,  285,  285,  285,
+        0,    0,  285,  286,  286,  286,  286,  286,  286,  286,
+      287,  287,    0,  287,  287,    0,  287,  288,  288,  288,
+      288,  288,  288,  288,  289,  289,  289,  289,  289,  289,
+      290,    0,  290,  290,  290,  290,  290,  291,    0,  291,
+      291,  291,  291,  291,  292,  292,  292,  292,  292,  292,
+      292,  293,  293,  293,  293,  293,  293,  293,  294,  294,
+      294,  294,  294,  294,  294,  278,  278,  278,  278,  278,
+
+      278,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      278,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      278,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      278,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      278,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      278,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      278,  278,  278,  278,  278,  278,  278,  278,  278,  278,
+      278,  278,  278
     } ;
 
 /* The intent behind this definition is that it'll catch
@@ -675,11 +739,16 @@ do {\
 #define RETURN_ROW_ID() \
   { store_expr_str(yytext, yyleng, yytext + yyleng, yyscanner); return ROW_ID; }
 
+#define RETURN_REVERSED_EXPR_FUNC() \
+  { store_expr_str(yytext, yyleng, yytext + yyleng, yyscanner); return REVERSED_EXPR_FUNC; }
+
+
 
 
 
 /*following character status will be rewrite by gen_parse.sh according to connection character*/
-#line 684 "ob_expr_parser_utf8_lex.c"
+/* limit the length of int_num from 1 to 17 in case of int64_t out of bound, 17 -> [ ( length of 2^64 ) - 2 ]*/
+#line 753 "ob_expr_parser_utf8_lex.c"
 
 #define INITIAL 0
 #define in_c_comment 1
@@ -927,9 +996,9 @@ YY_DECL
 	register int yy_act;
     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
 
-#line 96 "ob_expr_parser_utf8.l"
+#line 102 "ob_expr_parser_utf8.l"
 
-#line 935 "ob_expr_parser_utf8_lex.c"
+#line 1004 "ob_expr_parser_utf8_lex.c"
 
     yylval = yylval_param;
 
@@ -986,13 +1055,13 @@ YY_DECL
 			while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 				{
 				yy_current_state = (int) yy_def[yy_current_state];
-				if ( yy_current_state >= 197 )
+				if ( yy_current_state >= 279 )
 					yy_c = yy_meta[(unsigned int) yy_c];
 				}
 			yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
 			++yy_cp;
 			}
-		while ( yy_base[yy_current_state] != 517 );
+		while ( yy_base[yy_current_state] != 696 );
 
 yy_find_action:
 		yy_act = yy_accept[yy_current_state];
@@ -1018,206 +1087,226 @@ YY_DECL
 
 case 1:
 YY_RULE_SETUP
-#line 97 "ob_expr_parser_utf8.l"
+#line 103 "ob_expr_parser_utf8.l"
 { return WHERE; }
 	YY_BREAK
 case 2:
 YY_RULE_SETUP
-#line 98 "ob_expr_parser_utf8.l"
+#line 104 "ob_expr_parser_utf8.l"
 { return AS; }
 	YY_BREAK
 case 3:
 YY_RULE_SETUP
-#line 99 "ob_expr_parser_utf8.l"
+#line 105 "ob_expr_parser_utf8.l"
 { return VALUES; }
 	YY_BREAK
 case 4:
 YY_RULE_SETUP
-#line 100 "ob_expr_parser_utf8.l"
+#line 106 "ob_expr_parser_utf8.l"
 { return VALUES; }
 	YY_BREAK
 case 5:
 YY_RULE_SETUP
-#line 101 "ob_expr_parser_utf8.l"
+#line 107 "ob_expr_parser_utf8.l"
 { return SET; }
 	YY_BREAK
 case 6:
 YY_RULE_SETUP
-#line 102 "ob_expr_parser_utf8.l"
+#line 108 "ob_expr_parser_utf8.l"
 { return END_WHERE; }
 	YY_BREAK
 case 7:
 YY_RULE_SETUP
-#line 103 "ob_expr_parser_utf8.l"
+#line 109 "ob_expr_parser_utf8.l"
 { return END_WHERE; }
 	YY_BREAK
 case 8:
 YY_RULE_SETUP
-#line 104 "ob_expr_parser_utf8.l"
+#line 110 "ob_expr_parser_utf8.l"
 { return END_WHERE; }
 	YY_BREAK
 case 9:
 YY_RULE_SETUP
-#line 105 "ob_expr_parser_utf8.l"
+#line 111 "ob_expr_parser_utf8.l"
 { return END_WHERE; }
 	YY_BREAK
 case 10:
 YY_RULE_SETUP
-#line 106 "ob_expr_parser_utf8.l"
+#line 112 "ob_expr_parser_utf8.l"
 { RETURN_ROW_ID(); }
 	YY_BREAK
 case 11:
 YY_RULE_SETUP
-#line 108 "ob_expr_parser_utf8.l"
+#line 114 "ob_expr_parser_utf8.l"
 { return JOIN; }
 	YY_BREAK
 case 12:
 YY_RULE_SETUP
-#line 109 "ob_expr_parser_utf8.l"
+#line 115 "ob_expr_parser_utf8.l"
 { return ON; }
 	YY_BREAK
 case 13:
 YY_RULE_SETUP
-#line 110 "ob_expr_parser_utf8.l"
+#line 116 "ob_expr_parser_utf8.l"
 { return BETWEEN; }
 	YY_BREAK
 case 14:
 YY_RULE_SETUP
-#line 111 "ob_expr_parser_utf8.l"
+#line 117 "ob_expr_parser_utf8.l"
 { return AND_OP; }
 	YY_BREAK
 case 15:
 YY_RULE_SETUP
-#line 112 "ob_expr_parser_utf8.l"
+#line 118 "ob_expr_parser_utf8.l"
 { return AND_OP; }
 	YY_BREAK
 case 16:
 YY_RULE_SETUP
-#line 113 "ob_expr_parser_utf8.l"
+#line 119 "ob_expr_parser_utf8.l"
 { return OR_OP; }
 	YY_BREAK
 case 17:
 YY_RULE_SETUP
-#line 114 "ob_expr_parser_utf8.l"
+#line 120 "ob_expr_parser_utf8.l"
 { return OR_OP; }
 	YY_BREAK
 case 18:
 YY_RULE_SETUP
-#line 115 "ob_expr_parser_utf8.l"
+#line 121 "ob_expr_parser_utf8.l"
 { return IN; }
 	YY_BREAK
 case 19:
 YY_RULE_SETUP
-#line 116 "ob_expr_parser_utf8.l"
-{ return COMP_EQ; }
+#line 122 "ob_expr_parser_utf8.l"
+{ return IS; }
 	YY_BREAK
 case 20:
 YY_RULE_SETUP
-#line 117 "ob_expr_parser_utf8.l"
-{ return COMP_NSEQ; }
+#line 123 "ob_expr_parser_utf8.l"
+{ return TOKEN_NULL; }
 	YY_BREAK
 case 21:
 YY_RULE_SETUP
-#line 118 "ob_expr_parser_utf8.l"
-{ return COMP_GE; }
+#line 124 "ob_expr_parser_utf8.l"
+{ return NOT; }
 	YY_BREAK
 case 22:
 YY_RULE_SETUP
-#line 119 "ob_expr_parser_utf8.l"
-{ return COMP_GT; }
+#line 125 "ob_expr_parser_utf8.l"
+{ return COMP_EQ; }
 	YY_BREAK
 case 23:
 YY_RULE_SETUP
-#line 120 "ob_expr_parser_utf8.l"
-{ return COMP_LE; }
+#line 126 "ob_expr_parser_utf8.l"
+{ return COMP_NSEQ; }
 	YY_BREAK
 case 24:
 YY_RULE_SETUP
-#line 121 "ob_expr_parser_utf8.l"
-{ return COMP_LT; }
+#line 127 "ob_expr_parser_utf8.l"
+{ return COMP_GE; }
 	YY_BREAK
 case 25:
 YY_RULE_SETUP
-#line 122 "ob_expr_parser_utf8.l"
-{ return COMP_NE; }
+#line 128 "ob_expr_parser_utf8.l"
+{ return COMP_GT; }
 	YY_BREAK
 case 26:
 YY_RULE_SETUP
-#line 123 "ob_expr_parser_utf8.l"
-{ return PLACE_HOLDER; }
+#line 129 "ob_expr_parser_utf8.l"
+{ return COMP_LE; }
 	YY_BREAK
 case 27:
 YY_RULE_SETUP
-#line 124 "ob_expr_parser_utf8.l"
-{ store_pos_place_holder(yytext + 1, yyscanner); return POS_PLACE_HOLDER; }
+#line 130 "ob_expr_parser_utf8.l"
+{ return COMP_LT; }
 	YY_BREAK
 case 28:
 YY_RULE_SETUP
-#line 126 "ob_expr_parser_utf8.l"
-{ RETURN_INT_VAL(); }
+#line 131 "ob_expr_parser_utf8.l"
+{ return COMP_NE; }
 	YY_BREAK
 case 29:
 YY_RULE_SETUP
-#line 127 "ob_expr_parser_utf8.l"
-{ RETURN_NUMBER_VAL(); }
+#line 132 "ob_expr_parser_utf8.l"
+{ return PLACE_HOLDER; }
 	YY_BREAK
 case 30:
 YY_RULE_SETUP
-#line 128 "ob_expr_parser_utf8.l"
-{ RETURN_NAME_OB(); }
+#line 133 "ob_expr_parser_utf8.l"
+{ store_pos_place_holder(yytext + 1, yyscanner); return POS_PLACE_HOLDER; }
 	YY_BREAK
 case 31:
-/* rule 31 can match eol */
 YY_RULE_SETUP
-#line 129 "ob_expr_parser_utf8.l"
-{ }
+#line 134 "ob_expr_parser_utf8.l"
+{ RETURN_REVERSED_EXPR_FUNC();}
 	YY_BREAK
 case 32:
 YY_RULE_SETUP
-#line 130 "ob_expr_parser_utf8.l"
-{ return ','; }
+#line 136 "ob_expr_parser_utf8.l"
+{ RETURN_INT_VAL(); }
 	YY_BREAK
 case 33:
 YY_RULE_SETUP
-#line 131 "ob_expr_parser_utf8.l"
-{ return '('; }
+#line 137 "ob_expr_parser_utf8.l"
+{ RETURN_NUMBER_VAL(); }
 	YY_BREAK
 case 34:
 YY_RULE_SETUP
-#line 132 "ob_expr_parser_utf8.l"
-{ return ')'; }
+#line 138 "ob_expr_parser_utf8.l"
+{ RETURN_NAME_OB(); }
 	YY_BREAK
 case 35:
+/* rule 35 can match eol */
 YY_RULE_SETUP
-#line 133 "ob_expr_parser_utf8.l"
+#line 139 "ob_expr_parser_utf8.l"
+{ }
+	YY_BREAK
+case 36:
+YY_RULE_SETUP
+#line 140 "ob_expr_parser_utf8.l"
+{ return ','; }
+	YY_BREAK
+case 37:
+YY_RULE_SETUP
+#line 141 "ob_expr_parser_utf8.l"
+{ return '('; }
+	YY_BREAK
+case 38:
+YY_RULE_SETUP
+#line 142 "ob_expr_parser_utf8.l"
+{ return ')'; }
+	YY_BREAK
+case 39:
+YY_RULE_SETUP
+#line 143 "ob_expr_parser_utf8.l"
 { return yytext[0]; }
 	YY_BREAK
 /* comment */
-case 36:
+case 40:
 YY_RULE_SETUP
-#line 136 "ob_expr_parser_utf8.l"
+#line 146 "ob_expr_parser_utf8.l"
 { PUSH_STATE(in_c_comment); }
 	YY_BREAK
-case 37:
+case 41:
 YY_RULE_SETUP
-#line 137 "ob_expr_parser_utf8.l"
+#line 147 "ob_expr_parser_utf8.l"
 { POP_STATE(); }
 	YY_BREAK
-case 38:
-/* rule 38 can match eol */
+case 42:
+/* rule 42 can match eol */
 YY_RULE_SETUP
-#line 138 "ob_expr_parser_utf8.l"
+#line 148 "ob_expr_parser_utf8.l"
 {}
 	YY_BREAK
-case 39:
+case 43:
 YY_RULE_SETUP
-#line 139 "ob_expr_parser_utf8.l"
+#line 149 "ob_expr_parser_utf8.l"
 {}
 	YY_BREAK
 /* quote */
-case 40:
+case 44:
 YY_RULE_SETUP
-#line 142 "ob_expr_parser_utf8.l"
+#line 152 "ob_expr_parser_utf8.l"
 {
   PUSH_STATE(sq);
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
@@ -1228,10 +1317,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 41:
-/* rule 41 can match eol */
+case 45:
+/* rule 45 can match eol */
 YY_RULE_SETUP
-#line 152 "ob_expr_parser_utf8.l"
+#line 162 "ob_expr_parser_utf8.l"
 {
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -1239,9 +1328,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 42:
+case 46:
 YY_RULE_SETUP
-#line 159 "ob_expr_parser_utf8.l"
+#line 169 "ob_expr_parser_utf8.l"
 {
   POP_STATE();
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
@@ -1251,15 +1340,15 @@ YY_RULE_SETUP
   return STR_VAL;
 }
 	YY_BREAK
-case 43:
+case 47:
 YY_RULE_SETUP
-#line 168 "ob_expr_parser_utf8.l"
+#line 178 "ob_expr_parser_utf8.l"
 {}
 	YY_BREAK
-case 44:
-/* rule 44 can match eol */
+case 48:
+/* rule 48 can match eol */
 YY_RULE_SETUP
-#line 169 "ob_expr_parser_utf8.l"
+#line 179 "ob_expr_parser_utf8.l"
 {
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -1267,20 +1356,20 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 45:
-/* rule 45 can match eol */
+case 49:
+/* rule 49 can match eol */
 YY_RULE_SETUP
-#line 175 "ob_expr_parser_utf8.l"
+#line 185 "ob_expr_parser_utf8.l"
 {}
 	YY_BREAK
 case YY_STATE_EOF(sq):
-#line 176 "ob_expr_parser_utf8.l"
+#line 186 "ob_expr_parser_utf8.l"
 { return ERROR; }
 	YY_BREAK
 /* dquote */
-case 46:
+case 50:
 YY_RULE_SETUP
-#line 180 "ob_expr_parser_utf8.l"
+#line 190 "ob_expr_parser_utf8.l"
 {
   PUSH_STATE(dq);
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
@@ -1291,10 +1380,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 47:
-/* rule 47 can match eol */
+case 51:
+/* rule 51 can match eol */
 YY_RULE_SETUP
-#line 190 "ob_expr_parser_utf8.l"
+#line 200 "ob_expr_parser_utf8.l"
 {
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -1302,9 +1391,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 48:
+case 52:
 YY_RULE_SETUP
-#line 197 "ob_expr_parser_utf8.l"
+#line 207 "ob_expr_parser_utf8.l"
 {
   POP_STATE();
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
@@ -1317,31 +1406,31 @@ YY_RULE_SETUP
   return STR_VAL;
 }
 	YY_BREAK
-case 49:
+case 53:
 YY_RULE_SETUP
-#line 209 "ob_expr_parser_utf8.l"
+#line 219 "ob_expr_parser_utf8.l"
 {}
 	YY_BREAK
-case 50:
-/* rule 50 can match eol */
+case 54:
+/* rule 54 can match eol */
 YY_RULE_SETUP
-#line 210 "ob_expr_parser_utf8.l"
+#line 220 "ob_expr_parser_utf8.l"
 {}
 	YY_BREAK
-case 51:
-/* rule 51 can match eol */
+case 55:
+/* rule 55 can match eol */
 YY_RULE_SETUP
-#line 211 "ob_expr_parser_utf8.l"
+#line 221 "ob_expr_parser_utf8.l"
 {}
 	YY_BREAK
 case YY_STATE_EOF(dq):
-#line 212 "ob_expr_parser_utf8.l"
+#line 222 "ob_expr_parser_utf8.l"
 { return ERROR; }
 	YY_BREAK
 /* backtick */
-case 52:
+case 56:
 YY_RULE_SETUP
-#line 216 "ob_expr_parser_utf8.l"
+#line 226 "ob_expr_parser_utf8.l"
 {
   PUSH_STATE(bt);
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
@@ -1352,9 +1441,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 53:
+case 57:
 YY_RULE_SETUP
-#line 226 "ob_expr_parser_utf8.l"
+#line 236 "ob_expr_parser_utf8.l"
 {
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
   if (NULL != p && NULL != p->tmp_buf_ && p->tmp_len_ + 1 < OBPROXY_MAX_NAME_LENGTH) {
@@ -1362,10 +1451,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 54:
-/* rule 54 can match eol */
+case 58:
+/* rule 58 can match eol */
 YY_RULE_SETUP
-#line 233 "ob_expr_parser_utf8.l"
+#line 243 "ob_expr_parser_utf8.l"
 {
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
   if (NULL != p && NULL != p->tmp_buf_ && p->tmp_len_ + yyleng < OBPROXY_MAX_NAME_LENGTH) {
@@ -1374,9 +1463,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 55:
+case 59:
 YY_RULE_SETUP
-#line 241 "ob_expr_parser_utf8.l"
+#line 251 "ob_expr_parser_utf8.l"
 {
   POP_STATE();
   ObExprParseResult *p = (ObExprParseResult *)yyextra;
@@ -1389,27 +1478,27 @@ YY_RULE_SETUP
 }
 	YY_BREAK
 case YY_STATE_EOF(bt):
-#line 252 "ob_expr_parser_utf8.l"
+#line 262 "ob_expr_parser_utf8.l"
 {
   return ERROR;
 }
 	YY_BREAK
 case YY_STATE_EOF(INITIAL):
 case YY_STATE_EOF(in_c_comment):
-#line 256 "ob_expr_parser_utf8.l"
+#line 266 "ob_expr_parser_utf8.l"
 { return END_P; }
 	YY_BREAK
-case 56:
+case 60:
 YY_RULE_SETUP
-#line 257 "ob_expr_parser_utf8.l"
+#line 267 "ob_expr_parser_utf8.l"
 { return IGNORED_WORD; }
 	YY_BREAK
-case 57:
+case 61:
 YY_RULE_SETUP
-#line 258 "ob_expr_parser_utf8.l"
+#line 268 "ob_expr_parser_utf8.l"
 ECHO;
 	YY_BREAK
-#line 1415 "ob_expr_parser_utf8_lex.c"
+#line 1504 "ob_expr_parser_utf8_lex.c"
 
 	case YY_END_OF_BUFFER:
 		{
@@ -1701,7 +1790,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 		while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 			{
 			yy_current_state = (int) yy_def[yy_current_state];
-			if ( yy_current_state >= 197 )
+			if ( yy_current_state >= 279 )
 				yy_c = yy_meta[(unsigned int) yy_c];
 			}
 		yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
@@ -1730,11 +1819,11 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 	while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 		{
 		yy_current_state = (int) yy_def[yy_current_state];
-		if ( yy_current_state >= 197 )
+		if ( yy_current_state >= 279 )
 			yy_c = yy_meta[(unsigned int) yy_c];
 		}
 	yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
-	yy_is_jam = (yy_current_state == 196);
+	yy_is_jam = (yy_current_state == 278);
 
 	return yy_is_jam ? 0 : yy_current_state;
 }
@@ -2559,7 +2648,7 @@ static int yy_flex_strlen (yyconst char * s , yyscan_t yyscanner)
 
 #define YYTABLES_NAME "yytables"
 
-#line 258 "ob_expr_parser_utf8.l"
+#line 268 "ob_expr_parser_utf8.l"
 
 
 
@@ -2690,22 +2779,26 @@ extern int ob_expr_parser_utf8_yydebug;
      IN = 268,
      ON = 269,
      BETWEEN = 270,
-     COMP_EQ = 271,
-     COMP_NSEQ = 272,
-     COMP_GE = 273,
-     COMP_GT = 274,
-     COMP_LE = 275,
-     COMP_LT = 276,
-     COMP_NE = 277,
-     PLACE_HOLDER = 278,
-     END_P = 279,
-     ERROR = 280,
-     IGNORED_WORD = 281,
-     NAME_OB = 282,
-     STR_VAL = 283,
-     ROW_ID = 284,
-     INT_VAL = 285,
-     POS_PLACE_HOLDER = 286
+     IS = 271,
+     TOKEN_NULL = 272,
+     NOT = 273,
+     COMP_EQ = 274,
+     COMP_NSEQ = 275,
+     COMP_GE = 276,
+     COMP_GT = 277,
+     COMP_LE = 278,
+     COMP_LT = 279,
+     COMP_NE = 280,
+     PLACE_HOLDER = 281,
+     END_P = 282,
+     ERROR = 283,
+     IGNORED_WORD = 284,
+     NAME_OB = 285,
+     STR_VAL = 286,
+     ROW_ID = 287,
+     REVERSED_EXPR_FUNC = 288,
+     INT_VAL = 289,
+     POS_PLACE_HOLDER = 290
    };
 #endif
 
diff --git a/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_lex.h b/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_lex.h
index 4d9bbc92..330e2a73 100644
--- a/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_lex.h
+++ b/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_lex.h
@@ -341,7 +341,7 @@ extern int ob_expr_parser_utf8_yylex \
 #undef YY_DECL
 #endif
 
-#line 258 "ob_expr_parser_utf8.l"
+#line 268 "ob_expr_parser_utf8.l"
 
 
 #line 348 "ob_expr_parser_utf8_lex.h"
diff --git a/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_tab.c b/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_tab.c
index 2bcad007..437bec45 100644
--- a/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_tab.c
+++ b/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_tab.c
@@ -139,22 +139,26 @@ extern int ob_expr_parser_utf8_yydebug;
      IN = 268,
      ON = 269,
      BETWEEN = 270,
-     COMP_EQ = 271,
-     COMP_NSEQ = 272,
-     COMP_GE = 273,
-     COMP_GT = 274,
-     COMP_LE = 275,
-     COMP_LT = 276,
-     COMP_NE = 277,
-     PLACE_HOLDER = 278,
-     END_P = 279,
-     ERROR = 280,
-     IGNORED_WORD = 281,
-     NAME_OB = 282,
-     STR_VAL = 283,
-     ROW_ID = 284,
-     INT_VAL = 285,
-     POS_PLACE_HOLDER = 286
+     IS = 271,
+     TOKEN_NULL = 272,
+     NOT = 273,
+     COMP_EQ = 274,
+     COMP_NSEQ = 275,
+     COMP_GE = 276,
+     COMP_GT = 277,
+     COMP_LE = 278,
+     COMP_LT = 279,
+     COMP_NE = 280,
+     PLACE_HOLDER = 281,
+     END_P = 282,
+     ERROR = 283,
+     IGNORED_WORD = 284,
+     NAME_OB = 285,
+     STR_VAL = 286,
+     ROW_ID = 287,
+     REVERSED_EXPR_FUNC = 288,
+     INT_VAL = 289,
+     POS_PLACE_HOLDER = 290
    };
 #endif
 
@@ -232,8 +236,8 @@ static inline void add_token_list(ObProxyTokenList *list, ObProxyTokenList *next
   if (OB_ISNULL(list) || OB_ISNULL(next_list)) {
   } else if (NULL != list->tail_
              && NULL  != next_list->head_
-             && (TOKEN_INT_VAL == list->tail_->type_ || TOKEN_STR_VAL == list->tail_->type_)
-             && (TOKEN_INT_VAL == next_list->head_->type_ || TOKEN_STR_VAL == next_list->head_->type_)) {
+             && (TOKEN_INT_VAL == list->tail_->type_ || TOKEN_STR_VAL == list->tail_->type_ || TOKEN_FUNC == list->tail_->type_)
+             && (TOKEN_INT_VAL == next_list->head_->type_ || TOKEN_STR_VAL == next_list->head_->type_ || TOKEN_FUNC == next_list->head_->type_)) {
     list->tail_->next_ = next_list->head_;
     list->tail_ = next_list->head_;
     list->tail_->next_ = NULL;
@@ -305,11 +309,18 @@ static inline void set_part_key_column_idx(ObExprParseResult *result, ObProxyPar
   for (i = 0; i < result->part_key_info_.key_num_; ++i) {
     if (is_equal(column_name, &result->part_key_info_.part_keys_[i].name_)) {
       result->part_key_info_.part_keys_[i].idx_ = result->column_idx_;
-      break;
+      result->part_key_info_.part_keys_[i].is_exist_in_sql_ = true;
     }
   }
 }
 
+static inline void init_part_key_all_match(ObExprParseResult *result)
+{
+  for (int64_t i = 0; i < result->part_key_info_.key_num_; ++i) {
+      result->part_key_info_.part_keys_[i].is_exist_in_sql_ = true;
+  }
+}
+
 #define malloc_node(node, result, type)                                                       \
   do {                                                                                        \
     if (OB_ISNULL(node = ((ObProxyTokenNode *)obproxy_parse_malloc(sizeof(ObProxyTokenNode),  \
@@ -344,21 +355,13 @@ static inline void set_part_key_column_idx(ObExprParseResult *result, ObProxyPar
   do {                                                                                          \
     if (NULL == relation) {                                                                     \
     } else {                                                                                    \
-      int64_t new_mask = get_mask(relation->type_, relation->level_);                           \
-      bool has_rowid = result->has_rowid_;                                                      \
-      if (((result->cur_mask_ | new_mask) != result->cur_mask_)                                 \
-          || (has_rowid                                                                         \
-              && is_equal_to_rowid(&relation->left_value_->column_node_->column_name_))) {      \
+      if (relation->level_ != PART_KEY_LEVEL_ZERO) {                                            \
         if (result->relation_info_.relation_num_ < OBPROXY_MAX_RELATION_NUM) {                  \
           result->relation_info_.relations_[result->relation_info_.relation_num_++] = relation; \
-          result->cur_mask_ = (result->cur_mask_ | new_mask);                                   \
         } else {                                                                                \
           /* YYACCEPT; */                                                                       \
         }                                                                                       \
       }                                                                                         \
-      if ((result->cur_mask_ & result->target_mask_) == result->target_mask_) {                 \
-        /* YYACCEPT; */                                                                              \
-      }                                                                                         \
     }                                                                                           \
   } while(0)                                                                                    \
 
@@ -428,6 +431,92 @@ static inline void add_relation(ObExprParseResult *result,
   }
 }
 
+static inline void set_relation_part_with_column_idx(int64_t idx_in_schema_columns, 
+                                                     ObExprParseResult *result, 
+                                                     ObProxyPartKeyLevel *level, 
+                                                     int64_t *first_part_column_idx, 
+                                                     int64_t *second_part_column_idx) 
+{
+  if (OB_ISNULL(level) && OB_ISNULL(first_part_column_idx) && 
+      OB_ISNULL(second_part_column_idx) && OB_ISNULL(result)) {
+    // do nothing
+  } else {
+    *level = PART_KEY_LEVEL_ZERO;
+    *first_part_column_idx = 0;
+    *second_part_column_idx = 0;
+    bool is_level_one = false;
+    bool is_level_two = false;
+    for (int i = 0; i < result->part_key_info_.key_num_; i++) {
+      // make sure the part_key exist in sql to avoid the uninitialized idx_
+      if (idx_in_schema_columns == result->part_key_info_.part_keys_[i].idx_ && result->part_key_info_.part_keys_[i].is_exist_in_sql_) {
+        if (result->part_key_info_.part_keys_[i].level_ == PART_KEY_LEVEL_ONE) {
+          is_level_one = true;
+          *first_part_column_idx = result->part_key_info_.part_keys_[i].idx_in_part_columns_;
+        } else if (result->part_key_info_.part_keys_[i].level_ == PART_KEY_LEVEL_TWO) {
+          is_level_two = true;
+          *second_part_column_idx = result->part_key_info_.part_keys_[i].idx_in_part_columns_;
+        }
+      }
+    }
+    if (is_level_one) {
+      *level = PART_KEY_LEVEL_ONE;
+    }
+    if (is_level_two) {
+      *level = PART_KEY_LEVEL_TWO;
+    }
+    if (is_level_one && is_level_two) {
+      *level = PART_KEY_LEVEL_BOTH;
+    }
+  }
+}
+
+static inline void set_relation_part_with_column_name(ObProxyParseString *column,
+                                                      ObExprParseResult *result,
+                                                      ObProxyPartKeyLevel *level,
+                                                      int64_t *first_part_column_idx,
+                                                      int64_t *second_part_column_idx) 
+{
+  if (OB_ISNULL(column)
+      || OB_ISNULL(result)
+      || OB_ISNULL(level)
+      || OB_ISNULL(first_part_column_idx)
+      || OB_ISNULL(second_part_column_idx)) {
+    // do nothing
+  } else if (result->has_rowid_
+             && is_equal_to_rowid(column)) {
+    // handle rowid
+    *level = PART_KEY_LEVEL_ONE;
+    *first_part_column_idx = 0;
+    *second_part_column_idx = 0;
+  } else {
+    *level = PART_KEY_LEVEL_ZERO;
+    *first_part_column_idx = 0;
+    *second_part_column_idx = 0;
+    bool is_level_one = false;
+    bool is_level_two = false;
+    for (int i = 0; i < result->part_key_info_.key_num_; i++) {
+      if (is_equal(&result->part_key_info_.part_keys_[i].name_, column)) {
+        if (result->part_key_info_.part_keys_[i].level_ == PART_KEY_LEVEL_ONE) {
+          is_level_one = true;
+          *first_part_column_idx = result->part_key_info_.part_keys_[i].idx_in_part_columns_;
+        } else if (result->part_key_info_.part_keys_[i].level_ == PART_KEY_LEVEL_TWO) {
+          is_level_two = true;
+          *second_part_column_idx = result->part_key_info_.part_keys_[i].idx_in_part_columns_;
+        }
+      }
+    }
+    if (is_level_one) {
+      *level = PART_KEY_LEVEL_ONE;
+    }
+    if (is_level_two) {
+      *level = PART_KEY_LEVEL_TWO;
+    }
+    if (is_level_one && is_level_two) {
+      *level = PART_KEY_LEVEL_BOTH;
+    }
+  }
+}
+
 
 static inline ObProxyRelationExpr *get_relation(ObExprParseResult *result,
                                                 ObProxyTokenList *left_value,
@@ -438,25 +527,25 @@ static inline ObProxyRelationExpr *get_relation(ObExprParseResult *result,
   ObProxyTokenList *tmp_left = NULL;
   ObProxyTokenList *tmp_right = NULL;
   ObProxyFunctionType tmp_type = F_NONE;
-  ObProxyPartKeyLevel tmp_level = PART_KEY_LEVEL_ZERO;
   int64_t tmp_column_idx_ = -1;
+  ObProxyParseString *tmp_column = NULL;
 
   if (NULL != left_value->column_node_
       && TOKEN_COLUMN == left_value->column_node_->type_
       && left_value->column_node_->part_key_idx_ >= 0) {
     tmp_left = left_value;
-    tmp_level = result->part_key_info_.part_keys_[left_value->column_node_->part_key_idx_].level_;
     tmp_right = right_value;
     tmp_type = type;
     tmp_column_idx_ = left_value->column_node_->part_key_idx_;
+    tmp_column = &left_value->column_node_->column_name_;
   } else if (NULL != right_value->column_node_
              && TOKEN_COLUMN == right_value->column_node_->type_
              && right_value->column_node_->part_key_idx_ >= 0) {
     tmp_left = right_value;
-    tmp_level = result->part_key_info_.part_keys_[right_value->column_node_->part_key_idx_].level_;
     tmp_right = left_value;
     tmp_type = get_reverse_func(type);
     tmp_column_idx_ = right_value->column_node_->part_key_idx_;
+    tmp_column = &right_value->column_node_->column_name_;
   }
 
   if (NULL == tmp_left || NULL == tmp_right || F_COMP_NE == tmp_type) {
@@ -469,7 +558,11 @@ static inline ObProxyRelationExpr *get_relation(ObExprParseResult *result,
     relation->left_value_ = tmp_left;
     relation->type_ = tmp_type;
     relation->right_value_ = tmp_right;
-    relation->level_ = tmp_level;
+    set_relation_part_with_column_name(tmp_column,
+                                       result,
+                                       &relation->level_,
+                                       &relation->first_part_column_idx_,
+                                       &relation->second_part_column_idx_);
   }
   return relation;
 }
@@ -483,14 +576,20 @@ static inline ObProxyRelationExpr *get_values_relation(ObExprParseResult *result
   } else {
     int64_t i = 0;
     for (i = 0; i < result->part_key_info_.key_num_; ++i) {
-      if (result->values_list_idx_ == result->part_key_info_.part_keys_[i].idx_) {
+      // make sure the part_key exist in sql to avoid the uninitialized idx_
+      if (result->values_list_idx_ == result->part_key_info_.part_keys_[i].idx_ && result->part_key_info_.part_keys_[i].is_exist_in_sql_) {
         if (OB_ISNULL(relation = ((ObProxyRelationExpr *)obproxy_parse_malloc(
                                         sizeof(ObProxyRelationExpr), result->malloc_pool_)))) {
         } else {
           relation->column_idx_ = i;
           relation->type_ = F_COMP_EQ;
           relation->right_value_ = right_value;
-          relation->level_ = result->part_key_info_.part_keys_[i].level_;
+          relation->left_value_ = NULL;
+          set_relation_part_with_column_idx(result->values_list_idx_, 
+                                            result,
+                                            &relation->level_, 
+                                            &relation->first_part_column_idx_, 
+                                            &relation->second_part_column_idx_);        
         }
         break;
       }
@@ -752,20 +851,20 @@ union yyalloc
 /* YYFINAL -- State number of the termination state.  */
 #define YYFINAL  17
 /* YYLAST -- Last index in YYTABLE.  */
-#define YYLAST   231
+#define YYLAST   242
 
 /* YYNTOKENS -- Number of terminals.  */
-#define YYNTOKENS  44
+#define YYNTOKENS  48
 /* YYNNTS -- Number of nonterminals.  */
 #define YYNNTS  24
 /* YYNRULES -- Number of rules.  */
-#define YYNRULES  80
+#define YYNRULES  83
 /* YYNRULES -- Number of states.  */
-#define YYNSTATES  144
+#define YYNSTATES  149
 
 /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
 #define YYUNDEFTOK  2
-#define YYMAXUTOK   286
+#define YYMAXUTOK   290
 
 #define YYTRANSLATE(YYX)						\
   ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
@@ -776,9 +875,9 @@ static const yytype_uint8 yytranslate[] =
        0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,    43,     2,     2,     2,    41,    42,     2,
-      35,    32,    39,    37,    36,    38,    34,    40,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,    33,
+       2,     2,     2,    47,     2,     2,     2,    45,    46,     2,
+      39,    36,    43,    41,    40,    42,    38,    44,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,    37,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
@@ -801,7 +900,8 @@ static const yytype_uint8 yytranslate[] =
        2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
        5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
       15,    16,    17,    18,    19,    20,    21,    22,    23,    24,
-      25,    26,    27,    28,    29,    30,    31
+      25,    26,    27,    28,    29,    30,    31,    32,    33,    34,
+      35
 };
 
 #if YYDEBUG
@@ -812,57 +912,58 @@ static const yytype_uint16 yyprhs[] =
        0,     0,     3,     6,     9,    13,    16,    21,    23,    25,
       27,    29,    31,    33,    36,    40,    43,    48,    52,    57,
       63,    70,    72,    76,    82,    86,    92,    96,   102,   108,
-     114,   120,   122,   124,   126,   128,   130,   132,   134,   136,
-     140,   142,   144,   147,   148,   152,   156,   158,   160,   164,
-     170,   175,   180,   182,   184,   186,   188,   190,   192,   194,
-     196,   198,   200,   202,   204,   209,   214,   218,   220,   224,
-     230,   231,   235,   237,   241,   243,   245,   249,   251,   255,
-     256
+     114,   120,   124,   129,   131,   133,   135,   137,   139,   141,
+     143,   145,   149,   151,   153,   156,   157,   161,   165,   167,
+     169,   173,   179,   181,   186,   191,   193,   195,   197,   199,
+     201,   203,   205,   207,   209,   211,   213,   215,   220,   225,
+     229,   231,   235,   241,   242,   246,   248,   252,   254,   256,
+     260,   262,   266,   267
 };
 
 /* YYRHS -- A `-1'-separated list of the rules' RHS.  */
 static const yytype_int8 yyrhs[] =
 {
-      45,     0,    -1,     3,    46,    -1,     4,    60,    -1,     5,
-      51,    47,    -1,    48,    47,    -1,    48,     5,    51,    47,
-      -1,     1,    -1,     9,    -1,    32,    -1,    33,    -1,    24,
-      -1,    49,    -1,    48,    49,    -1,    50,    14,    51,    -1,
-      10,    27,    -1,    10,    27,    34,    27,    -1,    10,    27,
-      27,    -1,    10,    27,     6,    27,    -1,    10,    27,    34,
-      27,    27,    -1,    10,    27,    34,    27,     6,    27,    -1,
-      52,    -1,    51,    11,    52,    -1,    35,    51,    11,    52,
-      32,    -1,    51,    12,    52,    -1,    35,    51,    12,    52,
-      32,    -1,    55,    53,    55,    -1,    55,    53,    35,    55,
-      32,    -1,    35,    55,    53,    55,    32,    -1,    55,    13,
-      35,    54,    32,    -1,    55,    15,    55,    11,    55,    -1,
-      16,    -1,    17,    -1,    18,    -1,    19,    -1,    20,    -1,
-      21,    -1,    22,    -1,    55,    -1,    54,    36,    55,    -1,
-      56,    -1,    58,    -1,    56,    58,    -1,    -1,    56,    36,
-      56,    -1,    57,    36,    56,    -1,    29,    -1,    27,    -1,
-      27,    34,    27,    -1,    27,    34,    27,    34,    27,    -1,
-      27,    35,    56,    32,    -1,    27,    35,    57,    32,    -1,
-      30,    -1,    28,    -1,    59,    -1,    23,    -1,    31,    -1,
-      37,    -1,    38,    -1,    39,    -1,    40,    -1,    41,    -1,
-      42,    -1,    43,    -1,    62,     7,    61,    47,    -1,     8,
-      66,    67,    47,    -1,    14,    51,    47,    -1,    46,    -1,
-      35,    65,    32,    -1,    61,    36,    35,    65,    32,    -1,
-      -1,    35,    63,    32,    -1,    64,    -1,    63,    36,    64,
-      -1,    27,    -1,    55,    -1,    65,    36,    55,    -1,    52,
-      -1,    66,    36,    52,    -1,    -1,     5,    51,    -1
+      49,     0,    -1,     3,    50,    -1,     4,    64,    -1,     5,
+      55,    51,    -1,    52,    51,    -1,    52,     5,    55,    51,
+      -1,     1,    -1,     9,    -1,    36,    -1,    37,    -1,    27,
+      -1,    53,    -1,    52,    53,    -1,    54,    14,    55,    -1,
+      10,    30,    -1,    10,    30,    38,    30,    -1,    10,    30,
+      30,    -1,    10,    30,     6,    30,    -1,    10,    30,    38,
+      30,    30,    -1,    10,    30,    38,    30,     6,    30,    -1,
+      56,    -1,    55,    11,    56,    -1,    39,    55,    11,    56,
+      36,    -1,    55,    12,    56,    -1,    39,    55,    12,    56,
+      36,    -1,    59,    57,    59,    -1,    59,    57,    39,    59,
+      36,    -1,    39,    59,    57,    59,    36,    -1,    59,    13,
+      39,    58,    36,    -1,    59,    15,    59,    11,    59,    -1,
+      59,    16,    17,    -1,    59,    16,    18,    17,    -1,    19,
+      -1,    20,    -1,    21,    -1,    22,    -1,    23,    -1,    24,
+      -1,    25,    -1,    59,    -1,    58,    40,    59,    -1,    60,
+      -1,    62,    -1,    60,    62,    -1,    -1,    60,    40,    60,
+      -1,    61,    40,    60,    -1,    32,    -1,    30,    -1,    30,
+      38,    30,    -1,    30,    38,    30,    38,    30,    -1,    33,
+      -1,    30,    39,    60,    36,    -1,    30,    39,    61,    36,
+      -1,    34,    -1,    31,    -1,    63,    -1,    26,    -1,    35,
+      -1,    41,    -1,    42,    -1,    43,    -1,    44,    -1,    45,
+      -1,    46,    -1,    47,    -1,    66,     7,    65,    51,    -1,
+       8,    70,    71,    51,    -1,    14,    55,    51,    -1,    50,
+      -1,    39,    69,    36,    -1,    65,    40,    39,    69,    36,
+      -1,    -1,    39,    67,    36,    -1,    68,    -1,    67,    40,
+      68,    -1,    30,    -1,    59,    -1,    69,    40,    59,    -1,
+      56,    -1,    70,    40,    56,    -1,    -1,     5,    55,    -1
 };
 
 /* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
 static const yytype_uint16 yyrline[] =
 {
-       0,   380,   380,   381,   383,   384,   385,   386,   388,   389,
-     390,   391,   393,   394,   396,   398,   399,   400,   401,   402,
-     403,   405,   406,   407,   408,   409,   411,   412,   413,   414,
-     415,   426,   427,   428,   429,   430,   431,   432,   434,   435,
-     437,   439,   440,   442,   443,   444,   447,   454,   460,   466,
-     472,   478,   484,   485,   486,   487,   493,   499,   500,   501,
-     502,   503,   504,   505,   507,   508,   509,   510,   512,   516,
-     521,   522,   527,   531,   536,   542,   552,   562,   563,   565,
-     566
+       0,   475,   475,   476,   478,   479,   480,   481,   483,   484,
+     485,   486,   488,   489,   491,   493,   494,   495,   496,   497,
+     498,   500,   501,   502,   503,   504,   506,   507,   508,   509,
+     510,   520,   521,   523,   524,   525,   526,   527,   528,   529,
+     531,   532,   534,   536,   537,   539,   540,   541,   544,   551,
+     557,   563,   569,   574,   580,   586,   587,   588,   589,   595,
+     601,   602,   603,   604,   605,   606,   607,   609,   610,   611,
+     612,   614,   618,   623,   624,   629,   633,   638,   644,   654,
+     664,   665,   667,   668
 };
 #endif
 
@@ -873,13 +974,14 @@ static const char *const yytname[] =
 {
   "$end", "error", "$undefined", "DUMMY_SELECT_CLAUSE",
   "DUMMY_INSERT_CLAUSE", "WHERE", "AS", "VALUES", "SET", "END_WHERE",
-  "JOIN", "AND_OP", "OR_OP", "IN", "ON", "BETWEEN", "COMP_EQ", "COMP_NSEQ",
-  "COMP_GE", "COMP_GT", "COMP_LE", "COMP_LT", "COMP_NE", "PLACE_HOLDER",
-  "END_P", "ERROR", "IGNORED_WORD", "NAME_OB", "STR_VAL", "ROW_ID",
-  "INT_VAL", "POS_PLACE_HOLDER", "')'", "';'", "'.'", "'('", "','", "'+'",
-  "'-'", "'*'", "'/'", "'%'", "'&'", "'!'", "$accept", "start",
-  "select_root", "end_flag", "join_expr_list", "join_on_expr", "join_expr",
-  "cond_expr", "bool_pri", "comp", "in_expr_list", "expr", "token_list",
+  "JOIN", "AND_OP", "OR_OP", "IN", "ON", "BETWEEN", "IS", "TOKEN_NULL",
+  "NOT", "COMP_EQ", "COMP_NSEQ", "COMP_GE", "COMP_GT", "COMP_LE",
+  "COMP_LT", "COMP_NE", "PLACE_HOLDER", "END_P", "ERROR", "IGNORED_WORD",
+  "NAME_OB", "STR_VAL", "ROW_ID", "REVERSED_EXPR_FUNC", "INT_VAL",
+  "POS_PLACE_HOLDER", "')'", "';'", "'.'", "'('", "','", "'+'", "'-'",
+  "'*'", "'/'", "'%'", "'&'", "'!'", "$accept", "start", "select_root",
+  "end_flag", "join_expr_list", "join_on_expr", "join_expr", "cond_expr",
+  "bool_pri", "comp", "in_expr_list", "expr", "token_list",
   "func_param_list", "token", "operator", "insert_root",
   "values_expr_lists", "opt_column_list", "column_list", "opt_column",
   "values_expr_list", "set_expr", "opt_where_clause", 0
@@ -894,23 +996,23 @@ static const yytype_uint16 yytoknum[] =
        0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
      265,   266,   267,   268,   269,   270,   271,   272,   273,   274,
      275,   276,   277,   278,   279,   280,   281,   282,   283,   284,
-     285,   286,    41,    59,    46,    40,    44,    43,    45,    42,
-      47,    37,    38,    33
+     285,   286,   287,   288,   289,   290,    41,    59,    46,    40,
+      44,    43,    45,    42,    47,    37,    38,    33
 };
 # endif
 
 /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
 static const yytype_uint8 yyr1[] =
 {
-       0,    44,    45,    45,    46,    46,    46,    46,    47,    47,
-      47,    47,    48,    48,    49,    50,    50,    50,    50,    50,
-      50,    51,    51,    51,    51,    51,    52,    52,    52,    52,
-      52,    53,    53,    53,    53,    53,    53,    53,    54,    54,
-      55,    56,    56,    57,    57,    57,    58,    58,    58,    58,
-      58,    58,    58,    58,    58,    58,    58,    59,    59,    59,
-      59,    59,    59,    59,    60,    60,    60,    60,    61,    61,
-      62,    62,    63,    63,    64,    65,    65,    66,    66,    67,
-      67
+       0,    48,    49,    49,    50,    50,    50,    50,    51,    51,
+      51,    51,    52,    52,    53,    54,    54,    54,    54,    54,
+      54,    55,    55,    55,    55,    55,    56,    56,    56,    56,
+      56,    56,    56,    57,    57,    57,    57,    57,    57,    57,
+      58,    58,    59,    60,    60,    61,    61,    61,    62,    62,
+      62,    62,    62,    62,    62,    62,    62,    62,    62,    62,
+      63,    63,    63,    63,    63,    63,    63,    64,    64,    64,
+      64,    65,    65,    66,    66,    67,    67,    68,    69,    69,
+      70,    70,    71,    71
 };
 
 /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
@@ -919,12 +1021,12 @@ static const yytype_uint8 yyr2[] =
        0,     2,     2,     2,     3,     2,     4,     1,     1,     1,
        1,     1,     1,     2,     3,     2,     4,     3,     4,     5,
        6,     1,     3,     5,     3,     5,     3,     5,     5,     5,
-       5,     1,     1,     1,     1,     1,     1,     1,     1,     3,
-       1,     1,     2,     0,     3,     3,     1,     1,     3,     5,
-       4,     4,     1,     1,     1,     1,     1,     1,     1,     1,
-       1,     1,     1,     1,     4,     4,     3,     1,     3,     5,
-       0,     3,     1,     3,     1,     1,     3,     1,     3,     0,
-       2
+       5,     3,     4,     1,     1,     1,     1,     1,     1,     1,
+       1,     3,     1,     1,     2,     0,     3,     3,     1,     1,
+       3,     5,     1,     4,     4,     1,     1,     1,     1,     1,
+       1,     1,     1,     1,     1,     1,     1,     4,     4,     3,
+       1,     3,     5,     0,     3,     1,     3,     1,     1,     3,
+       1,     3,     0,     2
 };
 
 /* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
@@ -933,140 +1035,142 @@ static const yytype_uint8 yyr2[] =
 static const yytype_uint8 yydefact[] =
 {
        0,     0,     0,     0,     7,     0,     0,     2,     0,    12,
-       0,     0,     0,     0,    67,     3,     0,     1,    55,    47,
-      53,    46,    52,    56,     0,    57,    58,    59,    60,    61,
-      62,    63,     0,    21,     0,    40,    41,    54,    15,     0,
-       8,    11,     9,    10,     5,    13,     0,     0,    77,    79,
-       0,    74,     0,    72,     0,     0,    43,     0,     0,     0,
-       0,     4,     0,     0,    31,    32,    33,    34,    35,    36,
-      37,     0,    42,     0,    17,     0,     0,    14,     0,     0,
-       0,     0,    66,    71,     0,     0,     0,    48,     0,     0,
-       0,     0,     0,    22,    24,     0,     0,     0,    26,    18,
-      16,     6,     0,    80,    78,    65,    73,    75,     0,     0,
-      64,     0,    50,     0,    51,     0,    22,    24,    26,     0,
-      38,     0,     0,     0,    19,     0,    68,     0,     0,    49,
-      44,    45,    23,    25,    28,    29,     0,    30,    27,    20,
-      76,     0,    39,    69
+       0,     0,     0,     0,    70,     3,     0,     1,    58,    49,
+      56,    48,    52,    55,    59,     0,    60,    61,    62,    63,
+      64,    65,    66,     0,    21,     0,    42,    43,    57,    15,
+       0,     8,    11,     9,    10,     5,    13,     0,     0,    80,
+      82,     0,    77,     0,    75,     0,     0,    45,     0,     0,
+       0,     0,     4,     0,     0,     0,    33,    34,    35,    36,
+      37,    38,    39,     0,    44,     0,    17,     0,     0,    14,
+       0,     0,     0,     0,    69,    74,     0,     0,     0,    50,
+       0,     0,     0,     0,     0,    22,    24,     0,     0,    31,
+       0,     0,    26,    18,    16,     6,     0,    83,    81,    68,
+      76,    78,     0,     0,    67,     0,    53,     0,    54,     0,
+      22,    24,    26,     0,    40,     0,    32,     0,     0,    19,
+       0,    71,     0,     0,    51,    46,    47,    23,    25,    28,
+      29,     0,    30,    27,    20,    79,     0,    41,    72
 };
 
 /* YYDEFGOTO[NTERM-NUM].  */
 static const yytype_int8 yydefgoto[] =
 {
-      -1,     3,     7,    44,     8,     9,    10,    32,    33,    71,
-     119,    34,    35,    89,    36,    37,    15,    86,    16,    52,
-      53,   108,    49,    81
+      -1,     3,     7,    45,     8,     9,    10,    33,    34,    73,
+     123,    35,    36,    91,    37,    38,    15,    88,    16,    53,
+      54,   112,    50,    83
 };
 
 /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
    STATE-NUM.  */
-#define YYPACT_NINF -52
+#define YYPACT_NINF -54
 static const yytype_int16 yypact[] =
 {
-      41,    16,     1,    13,   -52,   108,    -9,   -52,    22,   -52,
-      14,   129,   108,     6,   -52,   -52,    33,   -52,   -52,    31,
-     -52,   -52,   -52,   -52,   108,   -52,   -52,   -52,   -52,   -52,
-     -52,   -52,    76,   -52,   202,   171,   -52,   -52,     8,   108,
-     -52,   -52,   -52,   -52,   -52,   -52,   108,   171,   -52,     7,
-      76,   -52,   -12,   -52,     3,    24,   171,    84,   202,   129,
-     129,   -52,    25,   171,   -52,   -52,   -52,   -52,   -52,   -52,
-     -52,   150,   -52,    30,   -52,    45,    76,    90,   209,   108,
-     129,    60,   -52,   -52,     6,   171,    43,    49,    87,    -7,
-     129,   129,   150,   -52,   -52,   171,    66,   171,   -52,   -52,
-      10,   -52,   171,    90,   -52,   -52,   -52,   -52,    27,    54,
-     -52,    64,   -52,   171,   -52,   171,    73,    74,    75,    50,
-     -52,   171,    79,    86,   -52,    75,   -52,   171,   171,   -52,
-     171,   171,   -52,   -52,   -52,   -52,   171,   -52,   -52,   -52,
-     -52,    58,   -52,   -52
+      16,    77,     8,     7,   -54,   109,    -5,   -54,    22,   -54,
+      24,   131,   109,    38,   -54,   -54,    44,   -54,   -54,     6,
+     -54,   -54,   -54,   -54,   -54,   109,   -54,   -54,   -54,   -54,
+     -54,   -54,   -54,    68,   -54,   210,   175,   -54,   -54,     5,
+     109,   -54,   -54,   -54,   -54,   -54,   -54,   109,   175,   -54,
+       0,    68,   -54,   -28,   -54,    15,    43,   175,    79,   210,
+     131,   131,   -54,    36,   175,    75,   -54,   -54,   -54,   -54,
+     -54,   -54,   -54,   153,   -54,    53,   -54,    56,    68,    85,
+     217,   109,   131,    62,   -54,   -54,    38,   175,    -3,    50,
+      87,   -10,   131,   131,   153,   -54,   -54,   175,    83,   -54,
+      86,   175,   -54,   -54,    11,   -54,   175,    85,   -54,   -54,
+     -54,   -54,    10,    67,   -54,    80,   -54,   175,   -54,   175,
+      73,    76,    78,    21,   -54,   175,   -54,    88,    81,   -54,
+      78,   -54,   175,   175,   -54,   175,   175,   -54,   -54,   -54,
+     -54,   175,   -54,   -54,   -54,   -54,    27,   -54,   -54
 };
 
 /* YYPGOTO[NTERM-NUM].  */
 static const yytype_int8 yypgoto[] =
 {
-     -52,   -52,   118,   -28,   -52,   113,   -52,    -5,   -10,   -48,
-     -52,   -24,   -51,   -52,   -32,   -52,   -52,   -52,   -52,   -52,
-      38,     4,   -52,   -52
+     -54,   -54,   113,   -23,   -54,   117,   -54,   -11,    -8,   -38,
+     -54,   -25,   -53,   -54,   -34,   -54,   -54,   -54,   -54,   -54,
+      40,     3,   -54,   -54
 };
 
 /* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
    positive, shift that token.  If negative, reduce the rule which
    number is the opposite.  If zero, do what YYDEFACT says.
    If YYTABLE_NINF, syntax error.  */
-#define YYTABLE_NINF -71
+#define YYTABLE_NINF -74
 static const yytype_int16 yytable[] =
 {
-      58,    48,     4,    72,    61,    88,     5,    50,   -70,    11,
-      92,     6,    79,    17,    73,    12,   123,     4,    38,    57,
-      83,     5,    82,    78,    84,   114,     6,    39,    46,   115,
-     102,    40,     6,    51,    76,    74,    13,   124,    85,    96,
-      54,    77,    75,    80,     1,     2,    41,    98,   101,    93,
-      94,    87,    40,   105,    42,    43,    72,    99,   110,   126,
-      95,   107,   130,   127,   131,    55,    56,    41,   118,    40,
-     104,   120,   100,   122,   103,    42,    43,   121,   125,   109,
-     116,   117,   135,   111,    41,    40,   136,    59,    60,   128,
-     143,   129,    42,    43,   127,    90,    91,   137,    72,    72,
-      41,    59,    60,   140,   107,   132,   133,   134,    42,    43,
-      18,   138,   142,   139,    19,    20,    21,    22,    23,   112,
-      14,    45,   106,   113,    25,    26,    27,    28,    29,    30,
-      31,    18,   141,     0,     0,    19,    20,    21,    22,    23,
-       0,     0,     0,    24,     0,    25,    26,    27,    28,    29,
-      30,    31,    18,     0,     0,     0,    19,    20,    21,    22,
-      23,     0,     0,     0,    47,     0,    25,    26,    27,    28,
-      29,    30,    31,    18,     0,     0,     0,    19,    20,    21,
-      22,    23,     0,     0,     0,    97,     0,    25,    26,    27,
-      28,    29,    30,    31,    18,     0,     0,     0,    19,    20,
-      21,    22,    23,     0,     0,     0,     0,     0,    25,    26,
-      27,    28,    29,    30,    31,    62,     0,    63,    64,    65,
-      66,    67,    68,    69,    70,    64,    65,    66,    67,    68,
-      69,    70
+      59,    51,    74,    49,    90,    81,    41,    17,    85,     4,
+      62,    75,    86,     5,    58,   -73,    11,   128,     6,     1,
+       2,    94,    12,    80,    42,    39,   118,    40,    84,    78,
+     119,    41,     6,    43,    44,    76,    79,   113,    47,    98,
+      82,   129,   106,    77,    56,    57,   131,    13,   102,    42,
+     132,    55,    95,    96,    87,   105,    74,   140,    43,    44,
+     109,   141,   111,   148,   135,   114,   136,   132,    52,   122,
+     107,    41,   124,    89,   108,    97,   127,    41,     4,    60,
+      61,   130,     5,   103,   120,   121,   104,     6,   115,    42,
+      92,    93,    99,   100,   125,    42,    60,    61,    43,    44,
+     142,    74,    74,   126,    43,    44,   133,   145,   111,   137,
+     134,   144,   138,    18,   139,    14,   147,    19,    20,    21,
+      22,    23,    24,   116,   143,    46,   110,   117,    26,    27,
+      28,    29,    30,    31,    32,    18,   146,     0,     0,    19,
+      20,    21,    22,    23,    24,     0,     0,     0,    25,     0,
+      26,    27,    28,    29,    30,    31,    32,    18,     0,     0,
+       0,    19,    20,    21,    22,    23,    24,     0,     0,     0,
+      48,     0,    26,    27,    28,    29,    30,    31,    32,    18,
+       0,     0,     0,    19,    20,    21,    22,    23,    24,     0,
+       0,     0,   101,     0,    26,    27,    28,    29,    30,    31,
+      32,    18,     0,     0,     0,    19,    20,    21,    22,    23,
+      24,     0,     0,     0,     0,     0,    26,    27,    28,    29,
+      30,    31,    32,    63,     0,    64,    65,     0,     0,    66,
+      67,    68,    69,    70,    71,    72,    66,    67,    68,    69,
+      70,    71,    72
 };
 
 static const yytype_int16 yycheck[] =
 {
-      24,    11,     1,    35,    32,    56,     5,    12,     7,     8,
-      58,    10,     5,     0,     6,    14,     6,     1,    27,    24,
-      32,     5,    50,    47,    36,    32,    10,     5,    14,    36,
-      78,     9,    10,    27,    39,    27,    35,    27,    35,    63,
-       7,    46,    34,    36,     3,     4,    24,    71,    76,    59,
-      60,    27,     9,    81,    32,    33,    88,    27,    86,    32,
-      35,    85,   113,    36,   115,    34,    35,    24,    92,     9,
-      80,    95,    27,    97,    79,    32,    33,    11,   102,    36,
-      90,    91,    32,    34,    24,     9,    36,    11,    12,    35,
-      32,    27,    32,    33,    36,    11,    12,   121,   130,   131,
-      24,    11,    12,   127,   128,    32,    32,    32,    32,    33,
-      23,    32,   136,    27,    27,    28,    29,    30,    31,    32,
-       2,     8,    84,    36,    37,    38,    39,    40,    41,    42,
-      43,    23,   128,    -1,    -1,    27,    28,    29,    30,    31,
-      -1,    -1,    -1,    35,    -1,    37,    38,    39,    40,    41,
-      42,    43,    23,    -1,    -1,    -1,    27,    28,    29,    30,
-      31,    -1,    -1,    -1,    35,    -1,    37,    38,    39,    40,
-      41,    42,    43,    23,    -1,    -1,    -1,    27,    28,    29,
-      30,    31,    -1,    -1,    -1,    35,    -1,    37,    38,    39,
-      40,    41,    42,    43,    23,    -1,    -1,    -1,    27,    28,
-      29,    30,    31,    -1,    -1,    -1,    -1,    -1,    37,    38,
-      39,    40,    41,    42,    43,    13,    -1,    15,    16,    17,
-      18,    19,    20,    21,    22,    16,    17,    18,    19,    20,
-      21,    22
+      25,    12,    36,    11,    57,     5,     9,     0,    36,     1,
+      33,     6,    40,     5,    25,     7,     8,     6,    10,     3,
+       4,    59,    14,    48,    27,    30,    36,     5,    51,    40,
+      40,     9,    10,    36,    37,    30,    47,    40,    14,    64,
+      40,    30,    80,    38,    38,    39,    36,    39,    73,    27,
+      40,     7,    60,    61,    39,    78,    90,    36,    36,    37,
+      83,    40,    87,    36,   117,    88,   119,    40,    30,    94,
+      81,     9,    97,    30,    82,    39,   101,     9,     1,    11,
+      12,   106,     5,    30,    92,    93,    30,    10,    38,    27,
+      11,    12,    17,    18,    11,    27,    11,    12,    36,    37,
+     125,   135,   136,    17,    36,    37,    39,   132,   133,    36,
+      30,    30,    36,    26,    36,     2,   141,    30,    31,    32,
+      33,    34,    35,    36,    36,     8,    86,    40,    41,    42,
+      43,    44,    45,    46,    47,    26,   133,    -1,    -1,    30,
+      31,    32,    33,    34,    35,    -1,    -1,    -1,    39,    -1,
+      41,    42,    43,    44,    45,    46,    47,    26,    -1,    -1,
+      -1,    30,    31,    32,    33,    34,    35,    -1,    -1,    -1,
+      39,    -1,    41,    42,    43,    44,    45,    46,    47,    26,
+      -1,    -1,    -1,    30,    31,    32,    33,    34,    35,    -1,
+      -1,    -1,    39,    -1,    41,    42,    43,    44,    45,    46,
+      47,    26,    -1,    -1,    -1,    30,    31,    32,    33,    34,
+      35,    -1,    -1,    -1,    -1,    -1,    41,    42,    43,    44,
+      45,    46,    47,    13,    -1,    15,    16,    -1,    -1,    19,
+      20,    21,    22,    23,    24,    25,    19,    20,    21,    22,
+      23,    24,    25
 };
 
 /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
    symbol of state STATE-NUM.  */
 static const yytype_uint8 yystos[] =
 {
-       0,     3,     4,    45,     1,     5,    10,    46,    48,    49,
-      50,     8,    14,    35,    46,    60,    62,     0,    23,    27,
-      28,    29,    30,    31,    35,    37,    38,    39,    40,    41,
-      42,    43,    51,    52,    55,    56,    58,    59,    27,     5,
-       9,    24,    32,    33,    47,    49,    14,    35,    52,    66,
-      51,    27,    63,    64,     7,    34,    35,    51,    55,    11,
-      12,    47,    13,    15,    16,    17,    18,    19,    20,    21,
-      22,    53,    58,     6,    27,    34,    51,    51,    55,     5,
-      36,    67,    47,    32,    36,    35,    61,    27,    56,    57,
-      11,    12,    53,    52,    52,    35,    55,    35,    55,    27,
-      27,    47,    53,    51,    52,    47,    64,    55,    65,    36,
-      47,    34,    32,    36,    32,    36,    52,    52,    55,    54,
-      55,    11,    55,     6,    27,    55,    32,    36,    35,    27,
-      56,    56,    32,    32,    32,    32,    36,    55,    32,    27,
-      55,    65,    55,    32
+       0,     3,     4,    49,     1,     5,    10,    50,    52,    53,
+      54,     8,    14,    39,    50,    64,    66,     0,    26,    30,
+      31,    32,    33,    34,    35,    39,    41,    42,    43,    44,
+      45,    46,    47,    55,    56,    59,    60,    62,    63,    30,
+       5,     9,    27,    36,    37,    51,    53,    14,    39,    56,
+      70,    55,    30,    67,    68,     7,    38,    39,    55,    59,
+      11,    12,    51,    13,    15,    16,    19,    20,    21,    22,
+      23,    24,    25,    57,    62,     6,    30,    38,    55,    55,
+      59,     5,    40,    71,    51,    36,    40,    39,    65,    30,
+      60,    61,    11,    12,    57,    56,    56,    39,    59,    17,
+      18,    39,    59,    30,    30,    51,    57,    55,    56,    51,
+      68,    59,    69,    40,    51,    38,    36,    40,    36,    40,
+      56,    56,    59,    58,    59,    11,    17,    59,     6,    30,
+      59,    36,    40,    39,    30,    60,    60,    36,    36,    36,
+      36,    40,    59,    36,    30,    59,    69,    59,    36
 };
 
 #define yyerrok		(yyerrstatus = 0)
@@ -2003,47 +2107,47 @@ YYLTYPE yylloc;
 
   case 31:
 
-    { (yyval.func) = F_COMP_EQ; ;}
+    { (yyval.relation) = NULL; ;}
     break;
 
   case 32:
 
-    { (yyval.func) = F_COMP_NSEQ; ;}
+    { (yyval.relation) = NULL; ;}
     break;
 
   case 33:
 
-    { (yyval.func) = F_COMP_GE; ;}
+    { (yyval.func) = F_COMP_EQ; ;}
     break;
 
   case 34:
 
-    { (yyval.func) = F_COMP_GT; ;}
+    { (yyval.func) = F_COMP_NSEQ; ;}
     break;
 
   case 35:
 
-    { (yyval.func) = F_COMP_LE; ;}
+    { (yyval.func) = F_COMP_GE; ;}
     break;
 
   case 36:
 
-    { (yyval.func) = F_COMP_LT; ;}
+    { (yyval.func) = F_COMP_GT; ;}
     break;
 
   case 37:
 
-    { (yyval.func) = F_COMP_NE; ;}
+    { (yyval.func) = F_COMP_LE; ;}
     break;
 
   case 38:
 
-    { (yyval.list) = (yyvsp[(1) - (1)].list); ;}
+    { (yyval.func) = F_COMP_LT; ;}
     break;
 
   case 39:
 
-    { (yyval.list) = (yyvsp[(1) - (3)].list); add_token_list((yyvsp[(1) - (3)].list), (yyvsp[(3) - (3)].list)); ;}
+    { (yyval.func) = F_COMP_NE; ;}
     break;
 
   case 40:
@@ -2053,31 +2157,41 @@ YYLTYPE yylloc;
 
   case 41:
 
-    { malloc_list((yyval.list), result, (yyvsp[(1) - (1)].node)); ;}
+    { (yyval.list) = (yyvsp[(1) - (3)].list); add_token_list((yyvsp[(1) - (3)].list), (yyvsp[(3) - (3)].list)); ;}
     break;
 
   case 42:
 
-    { add_token((yyvsp[(1) - (2)].list), result, (yyvsp[(2) - (2)].node)); (yyval.list) = (yyvsp[(1) - (2)].list); ;}
+    { (yyval.list) = (yyvsp[(1) - (1)].list); ;}
     break;
 
   case 43:
 
-    { (yyval.list) = NULL; ;}
+    { malloc_list((yyval.list), result, (yyvsp[(1) - (1)].node)); ;}
     break;
 
   case 44:
 
-    { add_token_list((yyvsp[(1) - (3)].list), (yyvsp[(3) - (3)].list)); (yyval.list) = (yyvsp[(1) - (3)].list); ;}
+    { add_token((yyvsp[(1) - (2)].list), result, (yyvsp[(2) - (2)].node)); (yyval.list) = (yyvsp[(1) - (2)].list); ;}
     break;
 
   case 45:
 
-    { add_token_list((yyvsp[(1) - (3)].list), (yyvsp[(3) - (3)].list)); (yyval.list) = (yyvsp[(1) - (3)].list); ;}
+    { (yyval.list) = NULL; ;}
     break;
 
   case 46:
 
+    { add_token_list((yyvsp[(1) - (3)].list), (yyvsp[(3) - (3)].list)); (yyval.list) = (yyvsp[(1) - (3)].list); ;}
+    break;
+
+  case 47:
+
+    { add_token_list((yyvsp[(1) - (3)].list), (yyvsp[(3) - (3)].list)); (yyval.list) = (yyvsp[(1) - (3)].list); ;}
+    break;
+
+  case 48:
+
     {
        malloc_node((yyval.node), result, TOKEN_COLUMN);
        (yyval.node)->part_key_idx_ = 0;
@@ -2086,7 +2200,7 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 47:
+  case 49:
 
     {
        malloc_node((yyval.node), result, TOKEN_COLUMN);
@@ -2095,7 +2209,7 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 48:
+  case 50:
 
     {
        malloc_node((yyval.node), result, TOKEN_COLUMN);
@@ -2104,7 +2218,7 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 49:
+  case 51:
 
     {
        malloc_node((yyval.node), result, TOKEN_COLUMN);
@@ -2113,7 +2227,15 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 50:
+  case 52:
+
+    {
+       malloc_node((yyval.node), result, TOKEN_FUNC);
+       (yyval.node)->str_value_ = (yyvsp[(1) - (1)].str);
+     ;}
+    break;
+
+  case 53:
 
     {
        malloc_node((yyval.node), result, TOKEN_FUNC);
@@ -2122,7 +2244,7 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 51:
+  case 54:
 
     {
        malloc_node((yyval.node), result, TOKEN_FUNC);
@@ -2131,22 +2253,22 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 52:
+  case 55:
 
     { malloc_node((yyval.node), result, TOKEN_INT_VAL); (yyval.node)->int_value_ = (yyvsp[(1) - (1)].num); ;}
     break;
 
-  case 53:
+  case 56:
 
     { malloc_node((yyval.node), result, TOKEN_STR_VAL); (yyval.node)->str_value_ = (yyvsp[(1) - (1)].str); ;}
     break;
 
-  case 54:
+  case 57:
 
     { malloc_node((yyval.node), result, TOKEN_OPERATOR); (yyval.node)->operator_ = (yyvsp[(1) - (1)].operator); ;}
     break;
 
-  case 55:
+  case 58:
 
     {
        result->placeholder_list_idx_++;
@@ -2155,7 +2277,7 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 56:
+  case 59:
 
     {
        malloc_node((yyval.node), result, TOKEN_PLACE_HOLDER);
@@ -2163,71 +2285,76 @@ YYLTYPE yylloc;
      ;}
     break;
 
-  case 57:
+  case 60:
 
     { (yyval.operator) = OPT_ADD; ;}
     break;
 
-  case 58:
+  case 61:
 
     { (yyval.operator) = OPT_MINUS; ;}
     break;
 
-  case 59:
+  case 62:
 
     { (yyval.operator) = OPT_MUL; ;}
     break;
 
-  case 60:
+  case 63:
 
     { (yyval.operator) = OPT_DIV; ;}
     break;
 
-  case 61:
+  case 64:
 
     { (yyval.operator) = OPT_MOD; ;}
     break;
 
-  case 62:
+  case 65:
 
     { (yyval.operator) = OPT_AND; ;}
     break;
 
-  case 63:
+  case 66:
 
     { (yyval.operator) = OPT_NOT; ;}
     break;
 
-  case 64:
+  case 67:
 
     { YYACCEPT; ;}
     break;
 
-  case 65:
+  case 68:
 
     { YYACCEPT; ;}
     break;
 
-  case 66:
+  case 69:
 
     { YYACCEPT; ;}
     break;
 
-  case 68:
+  case 71:
 
     {
                    result->multi_param_values_++;
                  ;}
     break;
 
-  case 69:
+  case 72:
 
     {
                    result->multi_param_values_++;
                  ;}
     break;
 
-  case 72:
+  case 73:
+
+    { init_part_key_all_match(result);;}
+    break;
+
+  case 75:
 
     {
                           malloc_list((yyval.list), result, (yyvsp[(1) - (1)].node));
@@ -2235,7 +2362,7 @@ YYLTYPE yylloc;
                         ;}
     break;
 
-  case 73:
+  case 76:
 
     {
                                 malloc_list((yyval.list), result, (yyvsp[(3) - (3)].node));
@@ -2243,7 +2370,7 @@ YYLTYPE yylloc;
                               ;}
     break;
 
-  case 74:
+  case 77:
 
     {
                       set_part_key_column_idx(result, &(yyvsp[(1) - (1)].str));
@@ -2253,7 +2380,7 @@ YYLTYPE yylloc;
                     ;}
     break;
 
-  case 75:
+  case 78:
 
     {
                   if (result->multi_param_values_ < 1) {
@@ -2266,7 +2393,7 @@ YYLTYPE yylloc;
                 ;}
     break;
 
-  case 76:
+  case 79:
 
     {
                   if (result->multi_param_values_ < 1) {
@@ -2278,17 +2405,17 @@ YYLTYPE yylloc;
                 ;}
     break;
 
-  case 77:
+  case 80:
 
     { check_and_add_relation(result, (yyvsp[(1) - (1)].relation)); ;}
     break;
 
-  case 78:
+  case 81:
 
     { check_and_add_relation(result, (yyvsp[(3) - (3)].relation)); ;}
     break;
 
-  case 80:
+  case 83:
 
     {;}
     break;
diff --git a/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_tab.h b/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_tab.h
index 8c2fb973..9fee1347 100644
--- a/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_tab.h
+++ b/src/obproxy/opsql/expr_parser/ob_expr_parser_utf8_tab.h
@@ -69,22 +69,26 @@ extern int ob_expr_parser_utf8_yydebug;
      IN = 268,
      ON = 269,
      BETWEEN = 270,
-     COMP_EQ = 271,
-     COMP_NSEQ = 272,
-     COMP_GE = 273,
-     COMP_GT = 274,
-     COMP_LE = 275,
-     COMP_LT = 276,
-     COMP_NE = 277,
-     PLACE_HOLDER = 278,
-     END_P = 279,
-     ERROR = 280,
-     IGNORED_WORD = 281,
-     NAME_OB = 282,
-     STR_VAL = 283,
-     ROW_ID = 284,
-     INT_VAL = 285,
-     POS_PLACE_HOLDER = 286
+     IS = 271,
+     TOKEN_NULL = 272,
+     NOT = 273,
+     COMP_EQ = 274,
+     COMP_NSEQ = 275,
+     COMP_GE = 276,
+     COMP_GT = 277,
+     COMP_LE = 278,
+     COMP_LT = 279,
+     COMP_NE = 280,
+     PLACE_HOLDER = 281,
+     END_P = 282,
+     ERROR = 283,
+     IGNORED_WORD = 284,
+     NAME_OB = 285,
+     STR_VAL = 286,
+     ROW_ID = 287,
+     REVERSED_EXPR_FUNC = 288,
+     INT_VAL = 289,
+     POS_PLACE_HOLDER = 290
    };
 #endif
 
diff --git a/src/obproxy/opsql/expr_resolver/ob_expr_resolver.cpp b/src/obproxy/opsql/expr_resolver/ob_expr_resolver.cpp
index e0964303..6a656e7e 100644
--- a/src/obproxy/opsql/expr_resolver/ob_expr_resolver.cpp
+++ b/src/obproxy/opsql/expr_resolver/ob_expr_resolver.cpp
@@ -11,6 +11,10 @@
  */
 
 #define USING_LOG_PREFIX PROXY
+#include "opsql/func_expr_resolver/ob_func_expr_resolver.h"
+#include "opsql/func_expr_parser/ob_func_expr_parser.h"
+#include "opsql/func_expr_resolver/proxy_expr/ob_proxy_expr_factory.h"
+#include "opsql/func_expr_resolver/proxy_expr/ob_proxy_expr.h"
 #include "opsql/expr_resolver/ob_expr_resolver.h"
 #include "proxy/route/obproxy_part_info.h"
 #include "proxy/route/obproxy_expr_calculator.h"
@@ -20,11 +24,14 @@
 #include "proxy/mysql/ob_prepare_statement_struct.h"
 #include "obutils/ob_proxy_sql_parser.h"
 #include "utils/ob_proxy_utils.h"
+#include "dbconfig/ob_proxy_db_config_info.h"
+#include "common/ob_obj_compare.h"
 
 using namespace oceanbase::common;
 using namespace oceanbase::obproxy::proxy;
 using namespace oceanbase::obproxy::obutils;
 using namespace oceanbase::obmysql;
+using namespace oceanbase::obproxy::dbconfig;
 
 namespace oceanbase
 {
@@ -60,6 +67,51 @@ int64_t ObExprResolverResult::to_string(char *buf, const int64_t buf_len) const
   return pos;
 }
 
+/**
+ * @brief The range's border flag is decided by the last valid column.
+ *        If use range directly, the range will cover partition which
+ *        doesn't contain the data.
+ * 
+ * @param range
+ * @param border_flags all columns' border flag
+ * @return int 
+ */
+int ObExprResolver::preprocess_range(ObNewRange &range, ObIArray<ObBorderFlag> &border_flags) {
+  int ret = OB_SUCCESS;
+  ObObj *obj_start = const_cast<ObObj*>(range.start_key_.get_obj_ptr());
+  ObObj *obj_end = const_cast<ObObj*>(range.end_key_.get_obj_ptr());
+  int64_t invalid_idx = range.start_key_.get_obj_cnt();
+  for (int64_t i = 0; i < range.start_key_.get_obj_cnt(); i++) {
+    // find the last valid col, 
+    // use the last valid col's border flag as range's border flag
+    range.border_flag_.set_data(border_flags.at(i).get_data());
+    if (OB_ISNULL(obj_start) || OB_ISNULL(obj_end)) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("unexpected null pointer");
+    } else {
+      ObCompareCtx cmp_ctx(ObMaxType, CS_TYPE_INVALID, true, INVALID_TZ_OFF);
+      bool need_cast = false;
+      ObObj cmp_result(false);
+      if (OB_FAIL(ObObjCmpFuncs::compare(cmp_result, *obj_start, *obj_end, cmp_ctx, ObCmpOp::CO_EQ, need_cast))) {
+        LOG_WARN("fail to compare", K(ret));
+        invalid_idx = i + 1;
+        ret = OB_SUCCESS;
+        break;
+      } else if (!cmp_result.get_bool()) {
+        invalid_idx = i + 1;
+        break;
+      }
+    }
+  }
+  // set the cols after invalid_idx(included) to (max : min) 
+  for (int64_t i = invalid_idx; i < range.start_key_.get_obj_cnt(); i++) {
+    (obj_start + i)->set_max_value();
+    (obj_end + i)->set_min_value();
+  }
+  LOG_DEBUG("succ to simplify range", K(range));
+  return ret;
+}
+
 int ObExprResolver::resolve(ObExprResolverContext &ctx, ObExprResolverResult &result)
 {
   int ret = OB_SUCCESS;
@@ -67,27 +119,156 @@ int ObExprResolver::resolve(ObExprResolverContext &ctx, ObExprResolverResult &re
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("invalid ctx", K(ctx.relation_info_), K(ret));
   } else {
-    // ignore ret in for loop
-    for (int64_t i = 0; i < ctx.relation_info_->relation_num_; ++i) {
-      if (OB_ISNULL(ctx.relation_info_->relations_[i])) {
-        LOG_INFO("relations is not valid here, ignore it",
-                 K(ctx.relation_info_->relations_[i]), K(i));
-      } else if (OB_UNLIKELY(ctx.relation_info_->relations_[i]->level_ == PART_KEY_LEVEL_ZERO)) {
-        LOG_INFO("level is zero, ignore it");
+    proxy::ObProxyPartInfo *part_info = ctx.part_info_;
+
+    // to store partition column's border flag as order above like
+    // "where c2 > 1 and c1 < 33" => ordered_part_col_border [(exclusive_start, exclusive_end]
+    ObSEArray<ObBorderFlag, 2> part_columns_border;
+    ObSEArray<ObBorderFlag, 2> sub_part_columns_border;
+
+    // init range and border
+    if (part_info->get_part_level() >= share::schema::PARTITION_LEVEL_ONE) {
+      if (OB_FAIL(result.ranges_[0].build_row_key(part_info->get_part_columns().count(), allocator_))) {
+        LOG_WARN("fail to init range", K(ret));
       } else {
-        int64_t part_idx = (ctx.relation_info_->relations_[i]->level_ >= PART_KEY_LEVEL_BOTH) ? 0
-                           : static_cast<int64_t>(ctx.relation_info_->relations_[i]->level_ - 1);
-        if (OB_FAIL(resolve_token_list(ctx.relation_info_->relations_[i],
-                                       ctx.part_info_,
-                                       ctx.client_request_,
-                                       ctx.client_info_,
-                                       ctx.ps_id_entry_,
-                                       ctx.text_ps_entry_,
-                                       result.ranges_[part_idx]))) {
-          LOG_INFO("fail to resolve token list, ignore it", K(ret));
+        for (int i = 0; OB_SUCC(ret) && i < part_info->get_part_columns().count(); i++) {
+          if (OB_FAIL(part_columns_border.push_back(ObBorderFlag()))) {
+            LOG_WARN("fail to push border flag", K(i), K(ret));
+          }
+        }
+      }
+    }
+    if (part_info->get_part_level() == share::schema::PARTITION_LEVEL_TWO) {
+      if (OB_FAIL(result.ranges_[1].build_row_key(part_info->get_sub_part_columns().count(), allocator_))) {
+        LOG_WARN("fail to init range", K(ret));
+      } else {
+        for (int i = 0; OB_SUCC(ret) && i < part_info->get_sub_part_columns().count(); i++) {
+          if (OB_FAIL(sub_part_columns_border.push_back(ObBorderFlag()))) {
+            LOG_WARN("fail to push border flag", K(i), K(ret));
+          }
         }
       }
     }
+
+    if (OB_SUCC(ret)) {
+      ObObj *target_obj = NULL;
+      void *tmp_buf = NULL;
+
+      // ignore ret in for loop
+      // resolve every relation
+      for (int64_t i = 0; i < ctx.relation_info_->relation_num_; ++i) {
+        if (OB_ISNULL(ctx.relation_info_->relations_[i])) {
+          LOG_INFO("relations is not valid here, ignore it",
+                   K(ctx.relation_info_->relations_[i]), K(i));
+        } else if (OB_UNLIKELY(ctx.relation_info_->relations_[i]->level_ == PART_KEY_LEVEL_ZERO)) {
+          LOG_INFO("level is zero, ignore it");
+        } else {
+          if (OB_ISNULL(tmp_buf = allocator_.alloc(sizeof(ObObj)))) {
+            ret = OB_ALLOCATE_MEMORY_FAILED;
+            LOG_WARN("fail to alloc new obj", K(ret));
+          } else if (OB_ISNULL(target_obj = new (tmp_buf) ObObj())) {
+            ret = OB_ERR_UNEXPECTED;
+            LOG_WARN("fail to do placement new", K(ret));
+          } else if (OB_FAIL(resolve_token_list(ctx.relation_info_->relations_[i], ctx.part_info_, ctx.client_request_,
+                                                ctx.client_info_, ctx.ps_id_entry_, ctx.text_ps_entry_, target_obj,
+                                                ctx.sql_field_result_))) {
+            LOG_INFO("fail to resolve token list, ignore it", K(ret));
+          } else if ((PART_KEY_LEVEL_ONE == ctx.relation_info_->relations_[i]->level_ ||
+                      PART_KEY_LEVEL_BOTH == ctx.relation_info_->relations_[i]->level_) &&
+                     OB_FAIL(place_obj_to_range(ctx.relation_info_->relations_[i]->type_, 
+                                                ctx.relation_info_->relations_[i]->first_part_column_idx_,
+                                                target_obj, &result.ranges_[0], part_columns_border))) {
+            LOG_WARN("fail to place obj to range of part level one", K(ret));
+          } else if ((PART_KEY_LEVEL_TWO == ctx.relation_info_->relations_[i]->level_ ||
+                      PART_KEY_LEVEL_BOTH == ctx.relation_info_->relations_[i]->level_) && 
+                     OB_FAIL(place_obj_to_range(ctx.relation_info_->relations_[i]->type_, 
+                                                ctx.relation_info_->relations_[i]->second_part_column_idx_,
+                                                target_obj, &result.ranges_[1], sub_part_columns_border))) {
+            LOG_WARN("fail to place obj to range of part level two", K(ret));                      
+          } else {}
+          if (OB_NOT_NULL(target_obj)) {
+            allocator_.free(target_obj);
+          }
+        }
+      }
+
+      if (OB_SUCC(ret) && ctx.is_insert_stm_) {
+        if(OB_FAIL(handle_default_value(ctx.parse_result_->part_key_info_,
+                                        ctx.client_info_, result.ranges_,
+                                        ctx.sql_field_result_,part_columns_border,
+                                        sub_part_columns_border, part_info->is_oracle_mode()))){
+          LOG_WARN("fail to handle default value of part keys", K(ret));
+        }
+      }
+
+      if (OB_SUCC(ret)) {
+        if (OB_FAIL(preprocess_range(result.ranges_[0], part_columns_border))) {
+          LOG_WARN("fail to preprocess range, part key level 0", K(ret));
+        } else if (OB_FAIL(preprocess_range(result.ranges_[1], sub_part_columns_border))) {
+          LOG_WARN("fail to preprocess range, part key level 1", K(ret));
+        } else {}
+      }
+    }
+  }
+  return ret;
+}
+
+/**
+ * @brief 1. Place the resolved partition obj to range.start_key_/range.end_key_[idx].
+ *        The idx is the obj's according column's idx in partition expression.
+ *        2. Set the border flag of the partition obj. Use the border flag later in ObExprResolver::preprocess_range. 
+ * 
+ * @param relation 
+ * @param part_info 
+ * @param target_obj
+ * @param range        out
+ * @param border_flags out
+ * @param part_columns 
+ * @return int 
+ */
+int ObExprResolver::place_obj_to_range(ObProxyFunctionType type,
+                                       int64_t idx_in_part_columns,
+                                       ObObj *target_obj,
+                                       ObNewRange *range,
+                                       ObIArray<ObBorderFlag> &border_flags)
+{
+  int ret = OB_SUCCESS; 
+  ObObj *start_obj = const_cast<ObObj*>(range->start_key_.get_obj_ptr()) + idx_in_part_columns;
+  ObObj *end_obj = const_cast<ObObj*>(range->end_key_.get_obj_ptr()) + idx_in_part_columns;
+  if (OB_ISNULL(start_obj) || OB_ISNULL(end_obj) || OB_ISNULL(target_obj)) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("unexpected null pointer");
+  }
+
+  // 1. deep copy the resolved obj to right position in result.ranges_[x]
+  // 2. set the resolved obj's border flag
+  if (OB_SUCC(ret)) {
+    switch (type) {
+     case F_COMP_EQ:
+       *start_obj = *target_obj;
+       *end_obj = *target_obj;
+        border_flags.at(idx_in_part_columns).set_inclusive_start();
+        border_flags.at(idx_in_part_columns).set_inclusive_end();
+       break;
+     case F_COMP_GE:
+       *start_obj = *target_obj;
+       border_flags.at(idx_in_part_columns).set_inclusive_start();
+       break;
+     case F_COMP_GT:
+       *start_obj = *target_obj;
+       break;
+     case F_COMP_LE:
+       *end_obj = *target_obj;
+       border_flags.at(idx_in_part_columns).set_inclusive_end();
+       break;
+     case F_COMP_LT:
+       *end_obj = *target_obj;
+       break;
+     default:
+       LOG_INFO("this func is not useful for range", "func_type",
+                 get_obproxy_function_type(type));
+       break;
+    } // end of switch
   }
   return ret;
 }
@@ -108,179 +289,365 @@ int ObExprResolver::resolve_token_list(ObProxyRelationExpr *relation,
                                        ObClientSessionInfo *client_info,
                                        ObPsIdEntry *ps_id_entry,
                                        ObTextPsEntry *text_ps_entry,
-                                       ObNewRange &range,
+                                       ObObj *target_obj,
+                                       SqlFieldResult *sql_field_result,
                                        const bool has_rowid)
 {
   int ret = OB_SUCCESS;
   UNUSED(text_ps_entry);
-  if (OB_ISNULL(relation) || OB_ISNULL(part_info)) {
+  if (OB_ISNULL(target_obj)) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("target_obj is null");
+  } else if (OB_ISNULL(relation) || OB_ISNULL(part_info)) {
     ret = OB_INVALID_ARGUMENT;
     LOG_INFO("relation or part info is null", K(relation), K(part_info), K(ret));
   } else if (OB_ISNULL(relation->right_value_) || OB_ISNULL(relation->right_value_->head_)) {
     ret = OB_INVALID_ARGUMENT;
     LOG_INFO("token list or head is null", K(relation->right_value_), K(ret));
   } else {
-    ObObj *target_obj = NULL;
-    void *tmp_buf = NULL;
+   ObProxyTokenNode *token = relation->right_value_->head_;
+   int64_t col_idx = relation->column_idx_;
+   if (TOKEN_STR_VAL == token->type_) {
+     target_obj->set_varchar(token->str_value_.str_, token->str_value_.str_len_);
+     target_obj->set_collation_type(ObCharset::get_default_collation(ObCharset::get_default_charset()));
+   } else if (TOKEN_INT_VAL == token->type_) {
+     target_obj->set_int(token->int_value_);
+   } else if (TOKEN_PLACE_HOLDER == token->type_) {
+     int64_t param_index = token->placeholder_idx_;
+     if (OB_FAIL(get_obj_with_param(*target_obj, client_request, client_info,
+                                    part_info, ps_id_entry, param_index))) {
+       LOG_DEBUG("fail to get target obj with param", K(ret));
+     }
+   } else if (TOKEN_FUNC == token->type_) {
+     if (OB_FAIL(calc_token_func_obj(token, client_info, *target_obj, sql_field_result, part_info->is_oracle_mode()))) {
+       LOG_WARN("fail to calc token func obj", K(ret));
+     }
+   } else {
+     ret = OB_INVALID_ARGUMENT;
+   }
+
+   if (OB_SUCC(ret)
+       && !has_rowid
+       && part_info->has_generated_key()) {
+     int64_t target_idx = -1;
+     ObProxyPartKeyInfo &part_key_info = part_info->get_part_key_info();
+     if (col_idx >= part_key_info.key_num_) {
+       ret = OB_ERR_UNEXPECTED;
+       LOG_WARN("relation column index is invalid", K(col_idx), K(part_key_info.key_num_), K(ret));
+     } else if (part_key_info.part_keys_[col_idx].is_generated_) {
+       // do nothing, user sql explicitly contains value for generated key, no need to calculate
+     } else if (FALSE_IT(target_idx = part_key_info.part_keys_[col_idx].generated_col_idx_)) {
+       // will not come here
+     } else if (OB_UNLIKELY(0 > target_idx)) {
+       LOG_DEBUG("this relation's part key is not used to generate column");
+     } else if (OB_UNLIKELY(target_idx >= part_key_info.key_num_)
+                || OB_UNLIKELY(!part_key_info.part_keys_[target_idx].is_generated_)
+                || OB_UNLIKELY(part_key_info.part_keys_[target_idx].level_ != relation->level_)) {
+       ret = OB_ENTRY_NOT_EXIST;
+       LOG_WARN("fail to get generated key value, source key is not offered",
+                K(col_idx), K(part_key_info.key_num_), K(target_idx), K(ret));
+     } else if (OB_FAIL(calc_generated_key_value(*target_obj, part_key_info.part_keys_[col_idx],
+                        part_info->is_oracle_mode()))) {
+       LOG_WARN("fail to get generated key value", K(target_obj), K(ret));
+     } else {
+       LOG_DEBUG("succ to calculate generated key value", K(target_obj), K(ret));
+     }
+   }
+
+   if (OB_SUCC(ret) && ObStringTC == target_obj->get_type_class()) {
+     // The character set of the string parsed from the parser uses the value of the variable collation_connection
+     target_obj->set_collation_type(static_cast<common::ObCollationType>(client_info->get_collation_connection()));
+   }
+  } // end of else
+  return ret;
+}
+
+/*
+ * calculate func token, convert token node to param node to reuse func resolver
+ */
+int ObExprResolver::calc_token_func_obj(ObProxyTokenNode *token,
+                                        ObClientSessionInfo *client_session_info,
+                                        ObObj &target_obj,
+                                        SqlFieldResult *sql_field_result,
+                                        const bool is_oracle_mode)
+{
+  int ret = OB_SUCCESS;
+  ObProxyParamNode *param_node = NULL;
+  ObProxyExprFactory factory(allocator_);
+  ObFuncExprResolverContext ctx(&allocator_, &factory);
+  ObFuncExprResolver resolver(ctx);
+  ObProxyExpr *expr;
+
+  if (OB_FAIL(convert_token_node_to_param_node(token, param_node))) {
+    LOG_WARN("fail to convert func token to param node", K(ret));
+  } else if (OB_ISNULL(param_node)) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    LOG_WARN("fail to convert func token to param node", K(ret));
+  } else if (OB_FAIL(resolver.resolve(param_node, expr))) {
+    LOG_WARN("proxy expr resolve failed", K(ret));
+  } else {
+    ObSEArray<ObObj, 4> result_array;
+    ObProxyExprCalcItem calc_item(const_cast<SqlFieldResult *>(sql_field_result));
+    ObProxyExprCtx expr_ctx(0, TESTLOAD_NON, false, &allocator_, client_session_info);
+    expr_ctx.is_oracle_mode = is_oracle_mode;
+    if (OB_FAIL(expr->calc(expr_ctx, calc_item, result_array))) {
+      LOG_WARN("calc expr result failed", K(ret));
+    } else if (OB_FAIL(result_array.at(0, target_obj))) {
+      LOG_WARN("get expr calc result fail", K(ret));
+    }
+  }
+
+  return ret;
+}
+
+int ObExprResolver::handle_default_value(ObProxyPartKeyInfo &part_key_info,
+                                         proxy::ObClientSessionInfo *client_info,
+                                         common::ObNewRange ranges[],
+                                         obutils::SqlFieldResult *sql_field_result,
+                                         ObIArray<ObBorderFlag> &part_border_flags,
+                                         ObIArray<ObBorderFlag> &sub_part_border_flags,
+                                         bool is_oracle_mode)
+{
+  int ret = OB_SUCCESS;
+  ObObj *target_obj = NULL;
+  void *tmp_buf = NULL;
+  for (int i = 0;  OB_SUCC(ret) && i < part_key_info.key_num_; i++) {
+    ObProxyPartKeyLevel level = part_key_info.part_keys_[i].level_;
+    int64_t column_idx = part_key_info.part_keys_[i].idx_in_part_columns_;
+    bool is_need_default_val = false;
+
     if (OB_ISNULL(tmp_buf = allocator_.alloc(sizeof(ObObj)))) {
       ret = OB_ALLOCATE_MEMORY_FAILED;
       LOG_WARN("fail to alloc new obj", K(ret));
-    } else {
-      target_obj = new (tmp_buf) ObObj();
-
-      ObProxyFunctionType &func_type = relation->type_;
-      ObProxyTokenNode *token = relation->right_value_->head_;
-      int64_t col_idx = relation->column_idx_;
-      if (TOKEN_STR_VAL == token->type_) {
-        target_obj->set_varchar(token->str_value_.str_, token->str_value_.str_len_);
-        target_obj->set_collation_type(ObCharset::get_default_collation(ObCharset::get_default_charset()));
-      } else if (TOKEN_INT_VAL == token->type_) {
-        target_obj->set_int(token->int_value_);
-      } else if (TOKEN_PLACE_HOLDER == token->type_) {
-        int64_t param_index = token->placeholder_idx_;
-        if (OB_FAIL(get_obj_with_param(*target_obj, client_request, client_info,
-                                       part_info, ps_id_entry, param_index))) {
-          LOG_DEBUG("fail to get target obj with param", K(ret));
+    } else if (OB_ISNULL(target_obj = new (tmp_buf) ObObj())) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("fail to do placement new ObObj", K(ret));
+    }
+
+    if(OB_SUCC(ret)){
+      if (part_key_info.part_keys_[i].is_generated_ && !part_key_info.part_keys_[i].is_exist_in_sql_) {
+        int source_idx = -1;
+        ObProxyParseString *var_str = NULL;
+        for (int j = 0; j < part_key_info.key_num_; j++) {
+          if (part_key_info.part_keys_[j].generated_col_idx_ == i
+              && !part_key_info.part_keys_[j].is_exist_in_sql_) {
+            source_idx = j;
+            break;
+          }
         }
-      } else if (TOKEN_FUNC == token->type_) {
-        if (OB_FAIL(calc_token_func_obj(token, client_info, *target_obj))) {
-          LOG_WARN("fail to calc token func obj", K(ret));
+        if (source_idx >= 0) {
+          int64_t real_source_idx = part_key_info.part_keys_[source_idx].real_source_idx_;
+          if (real_source_idx < 0 || real_source_idx > OBPROXY_MAX_PART_KEY_NUM){
+            // invalid real source idx
+          } else if (FALSE_IT(var_str = &part_key_info.part_keys_[real_source_idx].default_value_) || var_str->str_len_ < 0 ){
+          } else if (OB_FAIL(parse_and_resolve_default_value(*var_str, client_info, sql_field_result, target_obj, is_oracle_mode))){
+            LOG_WARN("parse and resolve default value of partition key failed", K(ret));
+          } else if (OB_FAIL(calc_generated_key_value(*target_obj, part_key_info.part_keys_[source_idx], is_oracle_mode))) {
+            LOG_WARN("fail to get generated key value", K(target_obj), K(ret));
+          } else {
+            is_need_default_val = true;
+          }
+        }
+      } else if (!part_key_info.part_keys_[i].is_exist_in_sql_) {
+        ObProxyParseString &var_str = part_key_info.part_keys_[i].default_value_;
+        if (var_str.str_len_ > 0) {
+          if (OB_FAIL(parse_and_resolve_default_value(var_str, client_info, sql_field_result, target_obj, is_oracle_mode))) {
+            LOG_WARN("parse and resolve default value of partition key failed", K(ret));
+          } else {
+            is_need_default_val = true;
+          }
         }
-      } else {
-        ret = OB_INVALID_ARGUMENT;
       }
+    }
+    
+    if (OB_SUCC(ret) && is_need_default_val) {
+      if ((PART_KEY_LEVEL_ONE == level || PART_KEY_LEVEL_BOTH == level) &&
+           OB_FAIL(place_obj_to_range(F_COMP_EQ, column_idx, target_obj, &ranges[0], part_border_flags))) {
+        LOG_WARN("fail to place obj to range of part level one", K(ret));
+      } else if ((PART_KEY_LEVEL_TWO == level || PART_KEY_LEVEL_BOTH == level) &&
+                  OB_FAIL(place_obj_to_range(F_COMP_EQ, column_idx, target_obj, &ranges[1], sub_part_border_flags))) {
+        LOG_WARN("fail to place obj to range of part level two", K(ret));
+      } else {}
+    }
+    if (OB_NOT_NULL(target_obj)) {
+      allocator_.free(target_obj);
+    }
+  }
+  return ret;
+}
 
-      if (!has_rowid
-          && part_info->has_generated_key()) {
-        int64_t target_idx = -1;
-        ObProxyPartKeyInfo &part_key_info = part_info->get_part_key_info();
-        if (col_idx >= part_key_info.key_num_) {
-          ret = OB_ERR_UNEXPECTED;
-          LOG_WARN("relation column index is invalid", K(col_idx), K(part_key_info.key_num_), K(ret));
-        } else if (part_key_info.part_keys_[col_idx].is_generated_) {
-          // do nothing, user sql explicitly contains value for generated key, no need to calculate
-        } else if (FALSE_IT(target_idx = part_key_info.part_keys_[col_idx].generated_col_idx_)) {
-          // will not come here
-        } else if (OB_UNLIKELY(target_idx >= part_key_info.key_num_)
-                   || OB_UNLIKELY(target_idx < 0)
-                   || OB_UNLIKELY(!part_key_info.part_keys_[target_idx].is_generated_)
-                   || OB_UNLIKELY(part_key_info.part_keys_[target_idx].level_ != relation->level_)) {
-          ret = OB_ENTRY_NOT_EXIST;
-          LOG_WARN("fail to get generated key value, source key is not offered",
-                   K(col_idx), K(part_key_info.key_num_), K(target_idx), K(ret));
-        } else if (OB_FAIL(calc_generated_key_value(*target_obj, part_key_info.part_keys_[col_idx],
-                           part_info->is_oracle_mode()))) {
-          LOG_WARN("fail to get generated key value", K(target_obj), K(ret));
+int ObExprResolver::parse_and_resolve_default_value(ObProxyParseString &default_value,
+                                                    ObClientSessionInfo *client_session_info,
+                                                    SqlFieldResult *sql_field_result,
+                                                    ObObj *target_obj,
+                                                    bool is_oracle_mode)
+{
+  int ret = OB_SUCCESS;
+  number::ObNumber nb;
+  if (default_value.str_len_ > 0 ){
+    int64_t tmp_pos = 0;
+    if (OB_FAIL(target_obj->deserialize(default_value.str_ , default_value.str_len_, tmp_pos))) {
+      LOG_WARN("fail to deserialize default value of part key");
+    } else if (FALSE_IT(LOG_DEBUG("default value deserialize succ" , K(*target_obj)))) {
+    } else if (target_obj->is_varchar() && is_oracle_mode) { 
+      // oracle mode return the default as a unresolved varchar type obj 
+      ObString default_value_expr = target_obj->get_varchar();
+      if (default_value_expr.empty()) {
+        target_obj->set_varchar(ObString());
+      } else if ('\'' == default_value_expr[0]) {
+        // match string type
+        ObString dst;
+        if (2 >= default_value_expr.length()) {
+          dst = ObString();
+          // remove single quotes
+        } else if (OB_FAIL(ob_sub_str(allocator_, default_value_expr, 1, default_value_expr.length() - 2, dst))) {
+          LOG_WARN("get sub stirng of default value failed", K(ret));
+        }
+        if (OB_SUCC(ret)) {
+          target_obj->set_varchar(dst);
+        }
+      } else if ( OB_SUCCESS == nb.from(default_value_expr.ptr(), default_value_expr.length(), allocator_)) {
+        // match positive number
+      } else if ('-' == default_value_expr[0] && 4 <= default_value_expr.length()) {
+        // match megative number
+        // server return negative with brackets, -1 -> -(1)
+        ObString number_part;
+        char *buf = NULL;
+        if(OB_FAIL(ob_sub_str(allocator_, default_value_expr, 2, default_value_expr.length() - 2, number_part))) {
+          LOG_WARN("get default value number part fail", K(ret));
+        } else if (OB_ISNULL(buf = static_cast<char *>(allocator_.alloc(number_part.length() + 1)))) {
+          ret = OB_ALLOCATE_MEMORY_FAILED;
+          LOG_WARN("alloc memory failed", K(ret));
         } else {
-          LOG_DEBUG("succ to calculate generated key value", K(target_obj), K(ret));
+          MEMCPY(buf, "-", 1);
+          MEMCPY(buf + 1, number_part.ptr(), number_part.length());
+          target_obj->set_varchar(ObString(number_part.length()+1, buf));
         }
-      }
+      } else {
+        // match expr
+        ObFuncExprParser parser(allocator_, SHARDING_EXPR_FUNC_PARSE_MODE);
+        ObFuncExprParseResult result;
 
-      if (OB_SUCC(ret) && ObStringTC == target_obj->get_type_class()) {
-        // The character set of the string parsed from the parser uses the value of the variable collation_connection
-        target_obj->set_collation_type(static_cast<common::ObCollationType>(client_info->get_collation_connection()));
-      }
+        ObProxyExprFactory factory(allocator_);
+        ObFuncExprResolverContext ctx(&allocator_, &factory);
+        ObFuncExprResolver resolver(ctx);
+        ObProxyExpr *expr;
 
-      if (OB_SUCC(ret)) {
-        switch (func_type) {
-          case F_COMP_EQ:
-            range.start_key_.assign(target_obj, 1);
-            range.end_key_.assign(target_obj, 1);
-            range.border_flag_.set_inclusive_start();
-            range.border_flag_.set_inclusive_end();
-            break;
-          case F_COMP_GE:
-            range.start_key_.assign(target_obj, 1);
-            range.border_flag_.set_inclusive_start();
-            break;
-          case F_COMP_GT:
-            range.start_key_.assign(target_obj, 1);
-            break;
-          case F_COMP_LE:
-            range.end_key_.assign(target_obj, 1);
-            range.border_flag_.set_inclusive_end();
-            break;
-          case F_COMP_LT:
-            range.end_key_.assign(target_obj, 1);
-            break;
-          default:
-            LOG_INFO("this func is not useful for range", "func_type",
-                      get_obproxy_function_type(func_type));
-            break;
-        } // end of switch
-      } // end of if
-    } // end of else
-  } // end of else
+        if (OB_FAIL(parser.parse(default_value_expr, result))) {
+          LOG_INFO("parse default value expr failed", K(ret));
+        } else if (OB_FAIL(resolver.resolve(result.param_node_, expr))) {
+          LOG_INFO("proxy expr resolve failed", K(ret));
+        } else {
+          ObSEArray<ObObj, 4> result_array;
+          ObProxyExprCalcItem calc_item(const_cast<SqlFieldResult *>(sql_field_result));
+          ObProxyExprCtx expr_ctx(0, TESTLOAD_NON, false, &allocator_, client_session_info);
+          expr_ctx.is_oracle_mode = is_oracle_mode;
+          if (OB_FAIL(expr->calc(expr_ctx, calc_item, result_array))) {
+            LOG_WARN("calc expr result failed", K(ret));
+          } else if (OB_FAIL(result_array.at(0, *target_obj))) {
+            LOG_WARN("get expr calc result fail", K(ret));
+          }
+        }
+      }
+    } else {
+      // mysql mode return the default value with resolved obj in column's type
+      // do nothing 
+    }
+  }
+  if (OB_SUCC(ret) && ObStringTC == target_obj->get_type_class()) {
+    LOG_DEBUG("parse and resolve default value succ", K(*target_obj), K(ret));
+    target_obj->set_collation_type(static_cast<common::ObCollationType>(client_session_info->get_collation_connection()));
+  }
   return ret;
 }
 
-/*
- * currently only support to_date/to_timestamp function
- * currently support at least one param, at most two params now
- */
-int ObExprResolver::calc_token_func_obj(ObProxyTokenNode *token,
-                                        ObClientSessionInfo *client_session_info,
-                                        ObObj &target_obj)
+int ObExprResolver::convert_token_node_to_param_node(ObProxyTokenNode *token,
+                                                     ObProxyParamNode *&param)
 {
   int ret = OB_SUCCESS;
-  ObObjType target_type = ObMaxType;
-  ObString func_name(token->str_value_.str_len_ ,token->str_value_.str_);
-  
-  if (func_name.case_compare("to_date") == 0) {
-    target_type = ObDateTimeType;
-  } else if (func_name.case_compare("to_timestamp") == 0) {
-    target_type = ObTimestampNanoType;
+  if (OB_ISNULL(token)) {
+    ret = OB_INVALID_ARGUMENT;
+    LOG_WARN("invalid argument", K(ret));
   } else {
-    /* more function could be supported */
+    void *tmp_buf = NULL;
+    if (OB_ISNULL(tmp_buf = allocator_.alloc(sizeof(ObProxyParamNode)))) {
+      ret = OB_ALLOCATE_MEMORY_FAILED;
+      LOG_WARN("fail to alloc new param node", K(ret));
+    } else {
+      param = new(tmp_buf) ObProxyParamNode();
+      param->next_ = NULL;
+      if (TOKEN_INT_VAL == token->type_) {
+        param->int_value_ = token->int_value_;
+        param->type_ = PARAM_INT_VAL;
+      } else if (TOKEN_STR_VAL == token->type_) {
+        param->str_value_ = token->str_value_;
+        param->type_ = PARAM_STR_VAL;
+      } else if (TOKEN_FUNC == token->type_) {
+        if (OB_FAIL(recursive_convert_func_token(token, param))) {
+          LOG_WARN("convert func token node to param node failed", K(ret));
+        }
+      } else {
+        ret = OB_INVALID_ARGUMENT;
+        LOG_WARN("unexpected token node type, please check", K(ret), K(param->type_));
+      }
+    }
   }
+  return ret;
+}
 
-  if (target_type == ObMaxType) {
-    ret = OB_INVALID_ARGUMENT;
-    LOG_WARN("fail to parse token func, unsupported function name", K(ret), K(func_name));
-  } else if (OB_ISNULL(token->child_)
-             || OB_ISNULL(token->child_->head_)){
+int ObExprResolver::recursive_convert_func_token(ObProxyTokenNode *token,
+                                                 ObProxyParamNode *param)
+{
+  int ret = OB_SUCCESS;
+  if (OB_ISNULL(token) || OB_ISNULL(param) || token->type_ != TOKEN_FUNC) {
     ret = OB_INVALID_ARGUMENT;
-    LOG_WARN("fail to parse token func, param list null", K(ret), K(token->str_value_.str_));
-  } else {
-    ObCollationType collation = ObCharset::get_default_collation(ObCharset::get_default_charset());
-    target_obj.set_collation_type(collation);
-
-    ObProxyTokenNode *param_node = token->child_->head_;
-    if (param_node->type_ == TOKEN_STR_VAL) {
-      target_obj.set_varchar(param_node->str_value_.str_, param_node->str_value_.str_len_);
-    } else if (param_node->type_ == TOKEN_INT_VAL) {
-      target_obj.set_int(param_node->int_value_);
+    LOG_WARN("invalid argument", K(ret));
+  }
+
+  ObString func_name(token->str_value_.str_len_, token->str_value_.str_);
+  ObProxyExprType func_type = get_expr_token_func_type(&func_name);
+  if (OB_SUCC(ret) && func_type == OB_PROXY_EXPR_TYPE_NONE) {
+    ret = OB_ERR_FUNCTION_UNKNOWN;
+    LOG_WARN("unsupported func type", K(ret), K(func_name), K(func_type));
+  }
+
+  if (OB_SUCC(ret)) {
+    void *tmp_buf = NULL;
+    param->type_ = PARAM_FUNC;
+    if (OB_ISNULL(tmp_buf = allocator_.alloc(sizeof(ObFuncExprNode)))) {
+      ret = OB_ALLOCATE_MEMORY_FAILED;
+      LOG_WARN("fail to alloc new func expr node", K(ret));
     } else {
-      ret = OB_INVALID_ARGUMENT;
-      LOG_WARN("unexpected token node type, please check", K(ret), K(param_node->type_));
-    }
-    
-    if (OB_SUCC(ret)) {
-      ObString nls_format;
-      if (param_node->next_ != NULL) {
-        nls_format.assign_ptr(param_node->next_->str_value_.str_, param_node->next_->str_value_.str_len_);
-      }
-      
-      ObTimeZoneInfo tz_info;
-      ObDataTypeCastParams dtc_params;
+      param->func_expr_node_ = new(tmp_buf) ObFuncExprNode();
+      param->func_expr_node_->func_type_ = func_type;
+      param->func_expr_node_->child_ = NULL;
 
-      if (!nls_format.empty()) {
-        dtc_params.tz_info_ = &tz_info;
-        dtc_params.set_nls_format_by_type(target_type, nls_format);
+      if (OB_ISNULL(token->child_)) {
+        // do nothing
+      } else if (OB_ISNULL(tmp_buf = allocator_.alloc(sizeof(ObProxyParamNodeList)))) {
+        ret = OB_ALLOCATE_MEMORY_FAILED;
+        LOG_WARN("fail to alloc new token list", K(ret));
       } else {
-        dtc_params.tz_info_ = &tz_info;
-        if (OB_FAIL(ObExprCalcTool::build_dtc_params(client_session_info, target_type, dtc_params))) {
-          LOG_WARN("fail to build dtc params", K(ret), K(target_type));
+        param->func_expr_node_->child_ = new(tmp_buf) ObProxyParamNodeList();
+        ObProxyParamNode head;
+        ObProxyParamNode *param_cur = &head;
+        ObProxyTokenNode *token_child = token->child_->head_;
+        int64_t child_num = 0;
+        for (; OB_SUCC(ret) && token_child != NULL; token_child = token_child->next_, param_cur = param_cur->next_) {
+          if (OB_FAIL(convert_token_node_to_param_node(token_child, param_cur->next_))) {
+            LOG_WARN("recursive convert func token failed", K(ret));
+          } else {
+            child_num++;
+          }
+        }
+        if (OB_SUCC(ret)) {
+          param->func_expr_node_->child_->tail_ = param_cur;
+          param->func_expr_node_->child_->head_ = head.next_;
+          param->func_expr_node_->child_->child_num_ = child_num;
         }
-      }
-      
-      ObCastCtx cast_ctx(&allocator_, &dtc_params, CM_NULL_ON_WARN, collation);
-      if (OB_SUCC(ret) && OB_FAIL(ObObjCasterV2::to_type(target_type, collation, cast_ctx, target_obj, target_obj))) {
-        LOG_WARN("fail to cast obj", K(ret), K(target_obj), K(target_type), K(collation));
       }
     }
   }
-
   return ret;
 }
 
@@ -346,21 +713,21 @@ int ObExprResolver::get_obj_with_param(ObObj &target_obj,
         ret = OB_ERR_UNEXPECTED;
         LOG_WARN("invalid placeholder idx", K(param_index), K(call_info), K(ret));
       } else {
-        const ObProxyCallParam &call_param = call_info.params_.at(param_index);
-        if (CALL_TOKEN_INT_VAL == call_param.type_) {
+        const ObProxyCallParam* call_param = call_info.params_.at(param_index);
+        if (CALL_TOKEN_INT_VAL == call_param->type_) {
           int64_t int_val = 0;
-          if (OB_FAIL(get_int_value(call_param.str_value_.string_, int_val))) {
-            LOG_WARN("fail to get int value", K(call_param.str_value_.string_), K(ret));
+          if (OB_FAIL(get_int_value(call_param->str_value_.config_string_, int_val))) {
+            LOG_WARN("fail to get int value", K(call_param->str_value_.config_string_), K(ret));
           } else {
             target_obj.set_int(int_val);
           }
-        } else if (CALL_TOKEN_STR_VAL == call_param.type_) {
-          target_obj.set_varchar(call_param.str_value_.string_);
+        } else if (CALL_TOKEN_STR_VAL == call_param->type_) {
+          target_obj.set_varchar(call_param->str_value_.config_string_);
           target_obj.set_collation_type(ObCharset::get_default_collation(ObCharset::get_default_charset()));
-        } else if (CALL_TOKEN_PLACE_HOLDER == call_param.type_) {
+        } else if (CALL_TOKEN_PLACE_HOLDER == call_param->type_) {
           need_use_execute_param = true;
-          if (OB_FAIL(get_int_value(call_param.str_value_.string_, execute_param_index))) {
-            LOG_WARN("fail to get int value", K(call_param.str_value_.string_), K(ret));
+          if (OB_FAIL(get_int_value(call_param->str_value_.config_string_, execute_param_index))) {
+            LOG_WARN("fail to get int value", K(call_param->str_value_.config_string_), K(ret));
           }
         }
       }
@@ -400,8 +767,8 @@ int ObExprResolver::get_obj_with_param(ObObj &target_obj,
         LOG_WARN("param index is large than param count", K(execute_param_index),
             K(execute_info.param_count_), K(ret));
       } else {
-        ObProxyTextPsParam &param = execute_info.params_.at(execute_param_index);
-        ObString user_variable_name = param.str_value_.string_;
+        ObProxyTextPsParam* param = execute_info.params_.at(execute_param_index);
+        ObString user_variable_name = param->str_value_.config_string_;
         if (OB_FAIL(static_cast<const ObClientSessionInfo&>(*client_info).get_user_variable_value(user_variable_name, target_obj))) {
           LOG_WARN("get user variable failed", K(ret), K(user_variable_name));
         } else {
@@ -449,6 +816,63 @@ int ObExprResolver::get_obj_with_param(ObObj &target_obj,
   return ret;
 }
 
+ObProxyExprType ObExprResolver::get_expr_token_func_type(ObString *func)
+{
+  ObProxyExprType type = OB_PROXY_EXPR_TYPE_NONE;
+  if (func == NULL) {
+    type = OB_PROXY_EXPR_TYPE_NONE;
+  } else if (0 == func->case_compare("HASH")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_HASH;
+  } else if (0 == func->case_compare("SUBSTR")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_SUBSTR;
+  } else if (0 == func->case_compare("CONCAT")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_CONCAT;
+  } else if (0 == func->case_compare("TOINT")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_TOINT;
+  } else if (0 == func->case_compare("DIV")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_DIV;
+  } else if (0 == func->case_compare("ADD")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_ADD;
+  } else if (0 == func->case_compare("SUB")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_SUB;
+  } else if (0 == func->case_compare("MUL")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_MUL;
+  } else if (0 == func->case_compare("SUM")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_SUM;
+  } else if (0 == func->case_compare("CONUT")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_COUNT;
+  } else if (0 == func->case_compare("MAX")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_MAX;
+  } else if (0 == func->case_compare("MIN")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_MIN;
+  } else if (0 == func->case_compare("AVG")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_AVG;
+  } else if (0 == func->case_compare("GROUP")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_GROUP;
+  } else if (0 == func->case_compare("ORDER")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_ORDER;
+  } else if (0 == func->case_compare("TESTLOAD")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_TESTLOAD;
+  } else if (0 == func->case_compare("SPLIT")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_SPLIT;
+  } else if (0 == func->case_compare("TO_DATE")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_TO_DATE;
+  } else if (0 == func->case_compare("TO_TIMESTAMP")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_TO_TIMESTAMP;
+  } else if (0 == func->case_compare("NVL")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_NVL;
+  } else if (0 == func->case_compare("TO_CHAR")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_TO_CHAR;
+  } else if (0 == func->case_compare("SYSDATE")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_SYSDATE;
+  } else if (0 == func->case_compare("MOD")) {
+    type = OB_PROXY_EXPR_TYPE_FUNC_MOD;
+  } else {
+    type = OB_PROXY_EXPR_TYPE_NONE;
+  }
+  return type;
+}
+
 } // end of opsql
 } // end of obproxy
 } // end of oceanbase
diff --git a/src/obproxy/opsql/expr_resolver/ob_expr_resolver.h b/src/obproxy/opsql/expr_resolver/ob_expr_resolver.h
index 4f7f1c38..082b2eec 100644
--- a/src/obproxy/opsql/expr_resolver/ob_expr_resolver.h
+++ b/src/obproxy/opsql/expr_resolver/ob_expr_resolver.h
@@ -25,6 +25,12 @@ class ObNewRange;
 }
 namespace obproxy
 {
+
+namespace obutils
+{
+struct SqlFieldResult;
+}
+
 namespace proxy
 {
 class ObProxyPartInfo;
@@ -38,7 +44,8 @@ namespace opsql
 struct ObExprResolverContext
 {
   ObExprResolverContext() : relation_info_(NULL), part_info_(NULL), client_request_(NULL),
-                            ps_id_entry_(NULL), text_ps_entry_(NULL), client_info_(NULL) {}
+                            ps_id_entry_(NULL), text_ps_entry_(NULL), client_info_(NULL),
+                            sql_field_result_(NULL) {}
   // parse result
   ObProxyRelationInfo *relation_info_;
   proxy::ObProxyPartInfo *part_info_;
@@ -47,6 +54,9 @@ struct ObExprResolverContext
   proxy::ObPsIdEntry *ps_id_entry_;
   proxy::ObTextPsEntry *text_ps_entry_;
   proxy::ObClientSessionInfo *client_info_;
+  obutils::SqlFieldResult *sql_field_result_;
+  ObExprParseResult *parse_result_;
+  bool is_insert_stm_;
 };
 
 class ObExprResolverResult
@@ -73,12 +83,21 @@ class ObExprResolver
                          proxy::ObClientSessionInfo *client_info,
                          proxy::ObPsIdEntry *ps_entry,
                          proxy::ObTextPsEntry *text_ps_entry,
-                         common::ObNewRange &range,
+                         common::ObObj *target_obj,
+                         obutils::SqlFieldResult *sql_field_result,
                          const bool has_rowid = false);
 private:
+  int preprocess_range(common::ObNewRange &range, common::ObIArray<common::ObBorderFlag> &border_flags);
+  int place_obj_to_range(ObProxyFunctionType type,
+                         int64_t idx_in_part_columns,
+                         common::ObObj *target_obj,
+                         common::ObNewRange *range,
+                         common::ObIArray<common::ObBorderFlag> &border_flags);
   int calc_token_func_obj(ObProxyTokenNode *token,
                           proxy::ObClientSessionInfo *client_session_info,
-                          common::ObObj &target_obj);
+                          common::ObObj &target_obj,
+                          obutils::SqlFieldResult *sql_field_result,
+                          const bool is_oracle_mode);
   int calc_generated_key_value(common::ObObj &obj, const ObProxyPartKey &part_key, const bool is_oracle_mode);
   int get_obj_with_param(common::ObObj &target_obj,
                          proxy::ObProxyMysqlRequest *client_request,
@@ -86,6 +105,24 @@ class ObExprResolver
                          proxy::ObProxyPartInfo *part_info,
                          proxy::ObPsIdEntry *ps_entry,
                          const int64_t param_index);
+  int convert_token_node_to_param_node(ObProxyTokenNode *token,
+                                       ObProxyParamNode *&param);
+  int recursive_convert_func_token(ObProxyTokenNode *token,
+                                   ObProxyParamNode *param);
+  int handle_default_value(ObProxyPartKeyInfo &part_info,
+                           proxy::ObClientSessionInfo *client_info,
+                           common::ObNewRange range[],
+                           obutils::SqlFieldResult *sql_field_result,
+                           common::ObIArray<common::ObBorderFlag> &part_border_flags,
+                           common::ObIArray<common::ObBorderFlag> &sub_part_border_flags,
+                           bool is_oracle_mode);
+  int parse_and_resolve_default_value(ObProxyParseString &default_value_expr,
+                                      proxy::ObClientSessionInfo *client_session_info,
+                                      obutils::SqlFieldResult *sql_field_result,
+                                      common::ObObj *target_obj,
+                                      bool is_oracle_mode);
+
+  ObProxyExprType get_expr_token_func_type(common::ObString *func);
   common::ObIAllocator &allocator_;
 
   DISALLOW_COPY_AND_ASSIGN(ObExprResolver);
diff --git a/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser.l b/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser.l
index 06aef3ab..420b291e 100644
--- a/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser.l
+++ b/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser.l
@@ -63,8 +63,11 @@ do {\
 
 space                   [ \t\n\r\f]
 identifer               ([A-Za-z0-9$_]*)
-int_num                 [\-\+]?[0-9]+
-number      ([0-9]+E[-+]?[0-9]+)|([0-9]+"."[0-9]*E[-+]?[0-9]+)|("."[0-9]+E[-+]?[0-9]+)|([0-9]+"."[0-9]*)|("."[0-9]+)
+
+/* limit the length of int_num from 1 to 17 in case of int64_t out of bound, 17 -> [ ( length of 2^64 ) - 2 ]*/
+int_num                 [\-\+]?[0-9]{1,17}
+number      ([\-]?[0-9]+E[-+]?[0-9]+)|([\-]?[0-9]+"."[0-9]*E[-+]?[0-9]+)|([\-]?"."[0-9]+E[-+]?[0-9]+)|([\-]?[0-9]+"."[0-9]*)|([\-]?"."[0-9]+)|([\-\+]?[0-9]{18,})
+
 
 whitespace              ({space}+)
 c_cmt_begin             \/\*
@@ -97,16 +100,22 @@ rightbracket  \)
 endtoken \#
 
 %%
-substr      { return FUNC_SUBSTR; }
-substring   { return FUNC_SUBSTR; }
-concat      { return FUNC_CONCAT; }
-hash        { return FUNC_HASH; }
-toint       { return FUNC_TOINT; }
-div         { return FUNC_DIV; }
-add         { return FUNC_ADD; }
-sub         { return FUNC_SUB; }
-mul         { return FUNC_MUL; }
-testload    { return FUNC_TESTLOAD; }
+substr        { return FUNC_SUBSTR; }
+substring     { return FUNC_SUBSTR; }
+concat        { return FUNC_CONCAT; }
+hash          { return FUNC_HASH; }
+toint         { return FUNC_TOINT; }
+div           { return FUNC_DIV; }
+add           { return FUNC_ADD; }
+sub           { return FUNC_SUB; }
+mul           { return FUNC_MUL; }
+testload      { return FUNC_TESTLOAD; }
+to_date       { return FUNC_TO_DATE; }
+to_timestamp  { return FUNC_TO_TIMESTAMP; }
+nvl           { return FUNC_NVL; }
+to_char       { return FUNC_TO_CHAR; }
+mod           { return FUNC_MOD; }
+sysdate       { return FUNC_SYSDATE; }
 
 {endtoken}  { return TOKEN_SPECIAL; }
 
diff --git a/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser.y b/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser.y
index db953fa1..5e32e90e 100644
--- a/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser.y
+++ b/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser.y
@@ -83,11 +83,12 @@ static inline void add_param_node(ObProxyParamNodeList *list, ObFuncExprParseRes
 %token DUMMY_FUNCTION_CLAUSE
  /* reserved keyword */
 %token TOKEN_SPECIAL FUNC_SUBSTR FUNC_CONCAT FUNC_HASH FUNC_TOINT FUNC_DIV FUNC_ADD FUNC_SUB FUNC_MUL FUNC_TESTLOAD
+%token FUNC_TO_DATE FUNC_TO_TIMESTAMP FUNC_NVL FUNC_TO_CHAR FUNC_MOD FUNC_SYSDATE
 %token END_P ERROR IGNORED_WORD
  /* type token */
 %token<str> NAME_OB STR_VAL NUMBER_VAL
 %token<num> INT_VAL
-%type<function_type> func_name
+%type<function_type> func_name reserved_func
 %type<list> param_list
 %type<func_node> func_expr
 %type<param_node> param
@@ -113,6 +114,11 @@ func_expr: func_name '(' param_list ')'
             malloc_func_expr_node($$, result, $1);
             $$->child_ = NULL;
           }
+          | reserved_func 
+          {
+            malloc_func_expr_node($$, result, $1);
+            $$->child_ = NULL;
+          }
 
 func_name: FUNC_SUBSTR { $$ = OB_PROXY_EXPR_TYPE_FUNC_SUBSTR; }
          | FUNC_CONCAT { $$ = OB_PROXY_EXPR_TYPE_FUNC_CONCAT; }
@@ -123,6 +129,13 @@ func_name: FUNC_SUBSTR { $$ = OB_PROXY_EXPR_TYPE_FUNC_SUBSTR; }
          | FUNC_SUB    { $$ = OB_PROXY_EXPR_TYPE_FUNC_SUB; }
          | FUNC_MUL    { $$ = OB_PROXY_EXPR_TYPE_FUNC_MUL; }
          | FUNC_TESTLOAD { $$ = OB_PROXY_EXPR_TYPE_FUNC_TESTLOAD; }
+         | FUNC_TO_DATE { $$ = OB_PROXY_EXPR_TYPE_FUNC_TO_DATE; }
+         | FUNC_TO_TIMESTAMP { $$ = OB_PROXY_EXPR_TYPE_FUNC_TO_TIMESTAMP; }
+         | FUNC_NVL { $$ = OB_PROXY_EXPR_TYPE_FUNC_NVL; }
+         | FUNC_TO_CHAR { $$ = OB_PROXY_EXPR_TYPE_FUNC_TO_CHAR; }
+         | FUNC_MOD { $$ = OB_PROXY_EXPR_TYPE_FUNC_MOD; }
+
+reserved_func: FUNC_SYSDATE  { $$ = OB_PROXY_EXPR_TYPE_FUNC_SYSDATE; }
 
 param_list: param
           {
diff --git a/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_lex.c b/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_lex.c
index 0a515233..3580edb3 100644
--- a/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_lex.c
+++ b/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_lex.c
@@ -348,8 +348,8 @@ static void yy_fatal_error (yyconst char msg[] ,yyscan_t yyscanner );
 	yyg->yy_hold_char = *yy_cp; \
 	yyg->yy_c_buf_p = yy_cp;
 
-#define YY_NUM_RULES 41
-#define YY_END_OF_BUFFER 42
+#define YY_NUM_RULES 47
+#define YY_END_OF_BUFFER 48
 /* This struct is not used in this scanner,
    but its presence is necessary. */
 struct yy_trans_info
@@ -357,21 +357,30 @@ struct yy_trans_info
 	flex_int32_t yy_verify;
 	flex_int32_t yy_nxt;
 	};
-static yyconst flex_int16_t yy_accept[115] =
+static yyconst flex_int16_t yy_accept[201] =
     {   0,
-       14,   14,    0,    0,    0,    0,    0,    0,    0,    0,
-       42,   40,   18,   18,   19,   30,   11,   14,   24,   19,
-       19,   19,   12,   14,   14,   14,   14,   14,   14,   14,
-       36,   23,   22,   23,   25,   26,   41,   31,   32,   41,
-       38,   39,   18,   16,    0,   14,    0,   15,   12,   13,
-       20,   13,   12,   14,   14,   14,   14,   14,   14,   14,
-       14,   14,    0,   17,    0,   21,   25,    0,   27,   28,
-       31,    0,   33,   34,   38,   37,    0,   13,    0,    0,
-       13,    7,   14,    6,   14,    9,    8,   14,   14,   29,
-       35,    0,   13,    0,   13,   13,   14,    4,   14,   14,
-
-       14,   14,   14,   14,    5,    3,    1,   14,   14,   14,
-       14,   10,    2,    0
+       20,   20,    0,    0,    0,    0,    0,    0,    0,    0,
+       48,   46,   24,   24,   25,   36,   17,   20,   30,   25,
+       25,   25,   25,   18,   20,   20,   20,   20,   20,   20,
+       20,   20,   42,   29,   28,   29,   31,   32,   47,   37,
+       38,   47,   44,   45,   24,   22,    0,   20,    0,   21,
+       18,    0,   18,   19,   26,   19,   18,   20,   20,   20,
+       20,   20,   20,   20,   20,   20,   20,   20,   20,    0,
+       23,    0,   27,   31,    0,   33,   34,   37,    0,   39,
+       40,   44,   43,   18,   18,    0,    0,   19,    0,   18,
+        0,   19,    7,   20,    6,   20,   15,    9,   13,    8,
+
+       20,   20,   20,   20,   35,   41,   18,   18,   19,    0,
+       19,    0,   19,   18,   20,    4,   20,   20,   20,   20,
+       20,   20,   20,   18,   18,   18,   20,   20,   20,   20,
+        5,   20,   20,   20,   18,   18,   18,    3,    1,   20,
+       20,   20,   20,   20,   18,   18,   18,   20,   16,   20,
+       14,   11,   20,   18,   18,   18,   20,   10,   20,   18,
+       18,   18,    2,   20,   18,   18,   18,   20,   18,   18,
+       18,   20,   18,   18,   18,   12,   18,   18,   18,   18,
+       18,   18,   18,   18,   18,   18,   18,   18,   18,   18,
+       18,   18,   18,   19,   19,   19,   19,   19,   19,    0
+
     } ;
 
 static yyconst flex_int32_t yy_ec[256] =
@@ -380,16 +389,16 @@ static yyconst flex_int32_t yy_ec[256] =
         1,    2,    2,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    2,    4,    5,    6,    7,    4,    4,    8,    4,
-        4,    9,   10,    4,   10,   11,   12,   13,   13,   13,
-       13,   13,   13,   13,   13,   13,   13,    4,    4,    1,
-        4,    1,    4,    4,   14,   15,   16,   17,   18,    7,
-       19,   20,   21,    7,    7,   22,   23,   24,   25,    7,
-        7,   26,   27,   28,   29,   30,    7,    7,    7,    7,
-        1,   31,    1,    4,    7,   32,   33,   34,   35,   36,
-
-       37,    7,   38,   39,   40,    7,    7,   41,   42,   43,
-       44,    7,    7,   45,   46,   47,   48,   49,    7,    7,
-        7,    7,    1,    4,    1,    4,    1,    1,    1,    1,
+        4,    9,   10,    4,   11,   12,   13,   14,   14,   14,
+       14,   14,   14,   14,   14,   14,   14,    4,    4,    1,
+        4,    1,    4,    4,   15,   16,   17,   18,   19,    7,
+       20,   21,   22,    7,    7,   23,   24,   25,   26,   27,
+        7,   28,   29,   30,   31,   32,    7,    7,   33,    7,
+        1,   34,    1,    4,   35,   36,   37,   38,   39,   40,
+
+       41,    7,   42,   43,   44,    7,    7,   45,   46,   47,
+       48,   49,    7,   50,   51,   52,   53,   54,    7,    7,
+       55,    7,    1,    4,    1,    4,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
@@ -406,123 +415,202 @@ static yyconst flex_int32_t yy_ec[256] =
         1,    1,    1,    1,    1
     } ;
 
-static yyconst flex_int32_t yy_meta[50] =
+static yyconst flex_int32_t yy_meta[56] =
     {   0,
         1,    1,    1,    1,    2,    1,    3,    4,    1,    1,
-        1,    1,    3,    3,    3,    3,    3,    3,    3,    3,
+        1,    1,    1,    3,    3,    3,    3,    3,    3,    3,
+        3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
+        3,    3,    3,    5,    3,    6,    3,    3,    3,    3,
         3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
-        5,    6,    3,    3,    3,    3,    3,    3,    3,    3,
-        3,    3,    3,    3,    3,    3,    3,    3,    3
+        3,    3,    3,    3,    3
     } ;
 
-static yyconst flex_int16_t yy_base[128] =
+static yyconst flex_int16_t yy_base[214] =
     {   0,
-        0,    0,   47,   48,   44,   45,   49,   50,  217,  216,
-      247,  250,   56,   58,  250,  241,  250,    0,  237,  231,
-      230,  233,   51,   46,   40,   45,   53,   39,   41,   53,
-      209,  250,  250,   65,    0,   90,    0,    0,   97,    0,
-        0,  208,   70,  250,  234,    0,  230,  250,  212,   78,
-      250,   88,   92,   94,   77,   71,   78,   82,   89,   97,
-       89,   96,  190,  250,  109,  250,    0,  130,  250,  250,
-        0,  117,  250,  250,    0,  250,  113,  121,  127,  200,
-      199,    0,  108,    0,  121,    0,  115,  116,  121,  250,
-      250,  194,  193,  149,  146,   70,  132,    0,  119,  126,
-
-      121,  122,  125,  127,    0,    0,  132,  140,  131,  139,
-      138,    0,    0,  250,  176,  182,  188,  194,  199,   76,
-      200,  202,  208,  214,  220,  226,  232
+        0,    0,   53,   54,   50,   51,   55,   56,  384,  382,
+      415,  508,   62,   64,  508,  403,  508,    0,  398,  389,
+       56,  388,  390,   57,   54,   47,   52,   60,   51,   46,
+       48,   61,  361,  508,  508,   79,    0,  103,    0,    0,
+      105,    0,    0,  342,  110,  508,  369,    0,  365,  508,
+      358,  351,  102,  101,  508,  103,  111,  117,  100,   94,
+       92,   97,  111,  109,  110,  118,  106,  107,  115,  328,
+      508,  136,  508,    0,  158,  508,  508,    0,  160,  508,
+      508,    0,  508,  345,  155,  161,  166,  154,  168,  169,
+      341,  340,    0,  147,    0,  149,    0,    0,    0,  155,
+
+      167,  157,  164,  173,  508,  508,  335,  185,  331,  328,
+      326,  319,  317,  186,  178,    0,  164,  186,  179,  178,
+      193,  202,  196,  316,  219,  223,  189,  193,  192,  202,
+        0,  214,  202,  210,  314,  233,  234,    0,  227,  236,
+      242,  230,  240,  242,  308,  251,  254,  237,    0,  249,
+        0,    0,  240,  307,  274,  282,  256,    0,  248,  288,
+      285,  291,    0,  270,  273,  294,  297,  266,  268,  305,
+      306,  287,  258,  315,  325,    0,  206,  329,  338,  139,
+      339,  348,  133,  349,  357,  125,  363,  369,  124,  372,
+      373,   79,  381,  382,   77,  393,  397,   72,  405,  508,
+
+      446,  452,  458,  464,  469,   80,  470,  472,  478,  484,
+      490,  496,  502
     } ;
 
-static yyconst flex_int16_t yy_def[128] =
+static yyconst flex_int16_t yy_def[214] =
     {   0,
-      114,    1,  115,  115,  116,  116,  117,  117,  118,  118,
-      114,  114,  114,  114,  114,  119,  114,  120,  121,  114,
-      114,  114,  120,  120,  120,  120,  120,  120,  120,  120,
-      122,  114,  114,  114,  123,  114,  124,  125,  114,  126,
-      127,  114,  114,  114,  119,  120,  121,  114,  114,  114,
-      114,  114,  120,  120,  120,  120,  120,  120,  120,  120,
-      120,  120,  122,  114,  114,  114,  123,  114,  114,  114,
-      125,  114,  114,  114,  127,  114,  114,  114,  114,  114,
-      120,  120,  120,  120,  120,  120,  120,  120,  120,  114,
-      114,  114,  114,  114,  114,  114,  120,  120,  120,  120,
-
-      120,  120,  120,  120,  120,  120,  120,  120,  120,  120,
-      120,  120,  120,    0,  114,  114,  114,  114,  114,  114,
-      114,  114,  114,  114,  114,  114,  114
+      200,    1,  201,  201,  202,  202,  203,  203,  204,  204,
+      200,  200,  200,  200,  200,  205,  200,  206,  207,  200,
+      200,  200,  200,  206,  206,  206,  206,  206,  206,  206,
+      206,  206,  208,  200,  200,  200,  209,  200,  210,  211,
+      200,  212,  213,  200,  200,  200,  205,  206,  207,  200,
+      200,  200,  200,  200,  200,  200,  206,  206,  206,  206,
+      206,  206,  206,  206,  206,  206,  206,  206,  206,  208,
+      200,  200,  200,  209,  200,  200,  200,  211,  200,  200,
+      200,  213,  200,  200,  200,  200,  200,  200,  200,  206,
+      200,  206,  206,  206,  206,  206,  206,  206,  206,  206,
+
+      206,  206,  206,  206,  200,  200,  200,  200,  200,  200,
+      200,  200,  200,  206,  206,  206,  206,  206,  206,  206,
+      206,  206,  206,  200,  200,  206,  206,  206,  206,  206,
+      206,  206,  206,  206,  200,  200,  206,  206,  206,  206,
+      206,  206,  206,  206,  200,  200,  206,  206,  206,  206,
+      206,  206,  206,  200,  200,  206,  206,  206,  206,  200,
+      200,  206,  206,  206,  200,  200,  206,  206,  200,  200,
+      206,  206,  200,  200,  206,  206,  200,  200,  206,  200,
+      200,  206,  200,  200,  206,  200,  200,  206,  200,  200,
+      206,  200,  200,  206,  200,  200,  206,  200,  200,    0,
+
+      200,  200,  200,  200,  200,  200,  200,  200,  200,  200,
+      200,  200,  200
     } ;
 
-static yyconst flex_int16_t yy_nxt[300] =
+static yyconst flex_int16_t yy_nxt[564] =
     {   0,
        12,   13,   14,   15,   16,   17,   18,   19,   15,   20,
-       21,   22,   23,   24,   18,   25,   26,   18,   18,   27,
-       18,   18,   28,   18,   18,   18,   29,   30,   18,   18,
-       12,   31,   24,   18,   25,   26,   18,   18,   27,   18,
-       18,   28,   18,   18,   18,   29,   30,   18,   18,   33,
-       33,   36,   36,   39,   39,   34,   34,   43,   43,   43,
-       43,   52,   55,   53,   56,   57,   58,   59,   54,   60,
-       61,   43,   43,   65,   37,   37,   66,   62,   46,   40,
-       40,   55,   96,   56,   57,   58,   59,   54,   60,   61,
-       50,   68,   68,   82,   83,   77,   62,   69,   72,   72,
-
-       78,   73,   52,   80,   53,   79,   81,   84,   85,   54,
-       86,   87,   82,   83,   77,   88,   89,   65,   72,   72,
-       66,   91,   92,   97,   79,   93,   84,   85,   54,   86,
-       87,   68,   68,   78,   88,   89,   94,   90,   79,   95,
-       98,   99,   97,  100,  101,  102,  103,  104,  105,  106,
-      107,  108,  109,  110,  111,  112,  113,   79,   95,   98,
-       99,   95,  100,  101,  102,  103,  104,  105,  106,  107,
-      108,  109,  110,  111,  112,  113,   32,   32,   32,   32,
-       32,   32,   35,   35,   35,   35,   35,   35,   38,   38,
-       38,   38,   38,   38,   41,   41,   41,   41,   41,   41,
-
-       45,   45,   47,   47,   63,   93,   93,   63,   67,   67,
-       67,   81,   96,   67,   70,   70,   70,   70,   70,   70,
-       71,   64,   71,   71,   49,   71,   74,   74,   74,   74,
-       74,   74,   75,   75,   75,   75,   75,   48,   44,   76,
-       64,   51,   50,   49,   48,   44,  114,   42,   42,   11,
-      114,  114,  114,  114,  114,  114,  114,  114,  114,  114,
-      114,  114,  114,  114,  114,  114,  114,  114,  114,  114,
-      114,  114,  114,  114,  114,  114,  114,  114,  114,  114,
-      114,  114,  114,  114,  114,  114,  114,  114,  114,  114,
-      114,  114,  114,  114,  114,  114,  114,  114,  114
-
+       21,   22,   23,   24,   25,   18,   26,   27,   18,   18,
+       28,   18,   18,   29,   30,   18,   18,   18,   31,   32,
+       18,   18,   18,   12,   18,   33,   25,   18,   26,   27,
+       18,   18,   28,   18,   18,   29,   30,   18,   18,   18,
+       31,   32,   18,   18,   18,   35,   35,   38,   38,   41,
+       41,   36,   36,   45,   45,   45,   45,   52,   56,   53,
+       57,   59,   60,   61,   62,   58,   63,   65,   66,   68,
+       67,   64,   48,   39,   39,  198,   69,   72,   42,   42,
+      198,   73,  195,   59,   60,   61,   62,   58,   63,   65,
+
+       66,   68,   67,   64,   75,   75,   79,   79,   69,   80,
+       76,   45,   45,   56,   54,   85,   88,   93,   94,   87,
+       86,   89,   56,   95,   90,   96,   91,   91,   97,   58,
+       92,   98,   99,  100,  101,  102,  103,  192,  189,   93,
+       94,   87,   86,   89,   72,   95,  186,   96,   73,  104,
+       97,   58,  183,   98,   99,  100,  101,  102,  103,   75,
+       75,   79,   79,  115,  106,  105,   56,   88,  108,  116,
+       91,   91,   89,   86,  109,  110,  110,  112,  112,  111,
+       56,  113,  114,  117,  118,  115,  119,   58,  120,  121,
+      122,  116,  127,  128,   89,   86,   56,   56,  125,  126,
+
+      129,  130,  123,   86,   58,  117,  118,  131,  119,   58,
+      120,  121,  122,  132,  127,  128,  133,  134,  138,  180,
+      139,  140,  129,  130,  123,   86,   58,  141,  142,  131,
+       56,  143,  136,  144,   56,  132,  137,   86,  133,  134,
+      138,   58,  139,  140,   56,   56,  146,  147,  148,  141,
+      142,   86,   58,  143,  149,  144,  150,  151,  152,   86,
+      153,  157,   56,   58,  155,   56,  158,  156,  159,   86,
+      148,  177,   58,   86,   58,  163,  149,  164,  150,  151,
+      152,  173,  153,  157,  168,   56,  169,  161,  158,  172,
+      159,   86,   86,   56,   58,  162,   56,  163,  166,  164,
+
+       58,  165,   56,   86,  167,   56,  168,  170,   56,   58,
+      171,  172,   86,  176,   86,   58,   56,   56,  174,  175,
+      160,  154,   58,   86,   58,   86,   56,  145,  178,  135,
+      113,   58,  113,   86,   86,  176,   56,   58,  179,  111,
+       56,  111,  181,   58,  109,   86,   58,   86,  124,   56,
+       56,  182,  184,   92,  109,   86,   58,   86,  107,   56,
+       56,  185,  187,   71,   54,   58,   58,   86,   56,   86,
+      188,   84,   50,   46,   56,   58,  190,   83,   58,   86,
+       56,   86,  191,   56,   56,  193,  194,   58,   58,   86,
+       86,   58,   56,   56,  196,  197,   71,   58,   55,   86,
+
+       58,   54,   51,   86,   56,   50,  199,   46,   56,   58,
+      197,   86,   86,   58,  200,   58,   56,   44,  199,   44,
+      200,   86,   58,   86,  200,  200,  200,  200,  200,  200,
+      200,  200,  200,   86,  200,  200,  200,   58,  200,  200,
+      200,  200,  200,  200,  200,   86,   34,   34,   34,   34,
+       34,   34,   37,   37,   37,   37,   37,   37,   40,   40,
+       40,   40,   40,   40,   43,   43,   43,   43,   43,   43,
+       47,   47,   49,   49,   70,  200,  200,   70,   74,   74,
+       74,  200,  200,   74,   77,   77,   77,   77,   77,   77,
+       78,  200,   78,   78,  200,   78,   81,   81,   81,   81,
+
+       81,   81,   82,   82,   82,   82,   82,   11,  200,  200,
+      200,  200,  200,  200,  200,  200,  200,  200,  200,  200,
+      200,  200,  200,  200,  200,  200,  200,  200,  200,  200,
+      200,  200,  200,  200,  200,  200,  200,  200,  200,  200,
+      200,  200,  200,  200,  200,  200,  200,  200,  200,  200,
+      200,  200,  200,  200,  200,  200,  200,  200,  200,  200,
+      200,  200,  200
     } ;
 
-static yyconst flex_int16_t yy_chk[300] =
+static yyconst flex_int16_t yy_chk[564] =
     {   0,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    3,
-        4,    5,    6,    7,    8,    3,    4,   13,   13,   14,
-       14,   23,   24,   23,   25,   26,   27,   28,   23,   29,
-       30,   43,   43,   34,    5,    6,   34,   30,  120,    7,
-        8,   24,   96,   25,   26,   27,   28,   23,   29,   30,
-       50,   36,   36,   55,   56,   50,   30,   36,   39,   39,
-
-       52,   39,   53,   54,   53,   52,   54,   57,   58,   53,
-       59,   60,   55,   56,   50,   61,   62,   65,   72,   72,
-       65,   72,   77,   83,   52,   77,   57,   58,   53,   59,
-       60,   68,   68,   78,   61,   62,   79,   68,   78,   79,
-       85,   87,   83,   88,   89,   97,   99,  100,  101,  102,
-      103,  104,  107,  108,  109,  110,  111,   78,   95,   85,
-       87,   94,   88,   89,   97,   99,  100,  101,  102,  103,
-      104,  107,  108,  109,  110,  111,  115,  115,  115,  115,
-      115,  115,  116,  116,  116,  116,  116,  116,  117,  117,
-      117,  117,  117,  117,  118,  118,  118,  118,  118,  118,
-
-      119,  119,  121,  121,  122,   93,   92,  122,  123,  123,
-      123,   81,   80,  123,  124,  124,  124,  124,  124,  124,
-      125,   63,  125,  125,   49,  125,  126,  126,  126,  126,
-      126,  126,  127,  127,  127,  127,  127,   47,   45,   42,
-       31,   22,   21,   20,   19,   16,   11,   10,    9,  114,
-      114,  114,  114,  114,  114,  114,  114,  114,  114,  114,
-      114,  114,  114,  114,  114,  114,  114,  114,  114,  114,
-      114,  114,  114,  114,  114,  114,  114,  114,  114,  114,
-      114,  114,  114,  114,  114,  114,  114,  114,  114,  114,
-      114,  114,  114,  114,  114,  114,  114,  114,  114
-
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    3,    4,    5,    6,    7,
+        8,    3,    4,   13,   13,   14,   14,   21,   24,   21,
+       24,   25,   26,   27,   28,   24,   29,   30,   31,   32,
+       31,   29,  206,    5,    6,  198,   32,   36,    7,    8,
+      195,   36,  192,   25,   26,   27,   28,   24,   29,   30,
+
+       31,   32,   31,   29,   38,   38,   41,   41,   32,   41,
+       38,   45,   45,   53,   54,   53,   56,   59,   60,   54,
+       53,   56,   57,   61,   57,   62,   58,   58,   63,   57,
+       58,   64,   65,   66,   67,   68,   69,  189,  186,   59,
+       60,   54,   53,   56,   72,   61,  183,   62,   72,   69,
+       63,   57,  180,   64,   65,   66,   67,   68,   69,   75,
+       75,   79,   79,   94,   79,   75,   85,   88,   85,   96,
+       86,   86,   88,   85,   86,   87,   87,   89,   89,   87,
+       90,   89,   90,  100,  101,   94,  102,   90,  103,  104,
+      104,   96,  115,  117,   88,   85,  108,  114,  108,  114,
+
+      118,  119,  104,  108,  114,  100,  101,  120,  102,   90,
+      103,  104,  104,  121,  115,  117,  122,  123,  127,  177,
+      128,  129,  118,  119,  104,  108,  114,  130,  132,  120,
+      125,  133,  125,  134,  126,  121,  126,  125,  122,  123,
+      127,  126,  128,  129,  136,  137,  136,  137,  139,  130,
+      132,  136,  137,  133,  140,  134,  141,  142,  143,  125,
+      144,  148,  146,  126,  146,  147,  150,  147,  153,  146,
+      139,  173,  147,  136,  137,  157,  140,  159,  141,  142,
+      143,  169,  144,  148,  164,  155,  165,  155,  150,  168,
+      153,  146,  155,  156,  147,  156,  161,  157,  161,  159,
+
+      156,  160,  162,  161,  162,  166,  164,  166,  167,  162,
+      167,  168,  166,  172,  155,  167,  170,  171,  170,  171,
+      154,  145,  156,  170,  171,  161,  174,  135,  174,  124,
+      113,  162,  112,  174,  166,  172,  175,  167,  175,  111,
+      178,  110,  178,  175,  109,  170,  171,  178,  107,  179,
+      181,  179,  181,   92,   91,  174,  179,  181,   84,  182,
+      184,  182,  184,   70,   52,  175,  182,  184,  185,  178,
+      185,   51,   49,   47,  187,  185,  187,   44,  179,  181,
+      188,  187,  188,  190,  191,  190,  191,  188,  182,  184,
+      190,  191,  193,  194,  193,  194,   33,  185,   23,  193,
+
+      194,   22,   20,  187,  196,   19,  196,   16,  197,  188,
+      197,  196,  190,  191,   11,  197,  199,   10,  199,    9,
+        0,  193,  194,  199,    0,    0,    0,    0,    0,    0,
+        0,    0,    0,  196,    0,    0,    0,  197,    0,    0,
+        0,    0,    0,    0,    0,  199,  201,  201,  201,  201,
+      201,  201,  202,  202,  202,  202,  202,  202,  203,  203,
+      203,  203,  203,  203,  204,  204,  204,  204,  204,  204,
+      205,  205,  207,  207,  208,    0,    0,  208,  209,  209,
+      209,    0,    0,  209,  210,  210,  210,  210,  210,  210,
+      211,    0,  211,  211,    0,  211,  212,  212,  212,  212,
+
+      212,  212,  213,  213,  213,  213,  213,  200,  200,  200,
+      200,  200,  200,  200,  200,  200,  200,  200,  200,  200,
+      200,  200,  200,  200,  200,  200,  200,  200,  200,  200,
+      200,  200,  200,  200,  200,  200,  200,  200,  200,  200,
+      200,  200,  200,  200,  200,  200,  200,  200,  200,  200,
+      200,  200,  200,  200,  200,  200,  200,  200,  200,  200,
+      200,  200,  200
     } ;
 
 /* The intent behind this definition is that it'll catch
@@ -590,7 +678,8 @@ do {\
 
 
 
-#line 595 "ob_func_expr_parser_lex.c"
+/* limit the length of int_num from 1 to 17 in case of int64_t out of bound, 17 -> [ ( length of 2^64 ) - 2 ]*/
+#line 684 "ob_func_expr_parser_lex.c"
 
 #define INITIAL 0
 #define in_c_comment 1
@@ -838,9 +927,9 @@ YY_DECL
 	register int yy_act;
     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
 
-#line 99 "ob_func_expr_parser.l"
+#line 102 "ob_func_expr_parser.l"
 
-#line 846 "ob_func_expr_parser_lex.c"
+#line 935 "ob_func_expr_parser_lex.c"
 
     yylval = yylval_param;
 
@@ -897,13 +986,13 @@ YY_DECL
 			while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 				{
 				yy_current_state = (int) yy_def[yy_current_state];
-				if ( yy_current_state >= 115 )
+				if ( yy_current_state >= 201 )
 					yy_c = yy_meta[(unsigned int) yy_c];
 				}
 			yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
 			++yy_cp;
 			}
-		while ( yy_base[yy_current_state] != 250 );
+		while ( yy_base[yy_current_state] != 508 );
 
 yy_find_action:
 		yy_act = yy_accept[yy_current_state];
@@ -929,126 +1018,156 @@ YY_DECL
 
 case 1:
 YY_RULE_SETUP
-#line 100 "ob_func_expr_parser.l"
+#line 103 "ob_func_expr_parser.l"
 { return FUNC_SUBSTR; }
 	YY_BREAK
 case 2:
 YY_RULE_SETUP
-#line 101 "ob_func_expr_parser.l"
+#line 104 "ob_func_expr_parser.l"
 { return FUNC_SUBSTR; }
 	YY_BREAK
 case 3:
 YY_RULE_SETUP
-#line 102 "ob_func_expr_parser.l"
+#line 105 "ob_func_expr_parser.l"
 { return FUNC_CONCAT; }
 	YY_BREAK
 case 4:
 YY_RULE_SETUP
-#line 103 "ob_func_expr_parser.l"
+#line 106 "ob_func_expr_parser.l"
 { return FUNC_HASH; }
 	YY_BREAK
 case 5:
 YY_RULE_SETUP
-#line 104 "ob_func_expr_parser.l"
+#line 107 "ob_func_expr_parser.l"
 { return FUNC_TOINT; }
 	YY_BREAK
 case 6:
 YY_RULE_SETUP
-#line 105 "ob_func_expr_parser.l"
+#line 108 "ob_func_expr_parser.l"
 { return FUNC_DIV; }
 	YY_BREAK
 case 7:
 YY_RULE_SETUP
-#line 106 "ob_func_expr_parser.l"
+#line 109 "ob_func_expr_parser.l"
 { return FUNC_ADD; }
 	YY_BREAK
 case 8:
 YY_RULE_SETUP
-#line 107 "ob_func_expr_parser.l"
+#line 110 "ob_func_expr_parser.l"
 { return FUNC_SUB; }
 	YY_BREAK
 case 9:
 YY_RULE_SETUP
-#line 108 "ob_func_expr_parser.l"
+#line 111 "ob_func_expr_parser.l"
 { return FUNC_MUL; }
 	YY_BREAK
 case 10:
 YY_RULE_SETUP
-#line 109 "ob_func_expr_parser.l"
+#line 112 "ob_func_expr_parser.l"
 { return FUNC_TESTLOAD; }
 	YY_BREAK
 case 11:
 YY_RULE_SETUP
-#line 111 "ob_func_expr_parser.l"
-{ return TOKEN_SPECIAL; }
+#line 113 "ob_func_expr_parser.l"
+{ return FUNC_TO_DATE; }
 	YY_BREAK
 case 12:
 YY_RULE_SETUP
-#line 113 "ob_func_expr_parser.l"
-{ RETURN_INT_VAL(); }
+#line 114 "ob_func_expr_parser.l"
+{ return FUNC_TO_TIMESTAMP; }
 	YY_BREAK
 case 13:
 YY_RULE_SETUP
-#line 114 "ob_func_expr_parser.l"
-{ RETURN_NUMBER_VAL(); }
+#line 115 "ob_func_expr_parser.l"
+{ return FUNC_NVL; }
 	YY_BREAK
 case 14:
 YY_RULE_SETUP
-#line 115 "ob_func_expr_parser.l"
-{ RETURN_NAME_OB(); }
+#line 116 "ob_func_expr_parser.l"
+{ return FUNC_TO_CHAR; }
 	YY_BREAK
 case 15:
 YY_RULE_SETUP
-#line 116 "ob_func_expr_parser.l"
-{ RETURN_NAME_OB_WITH_QUOTE(OBPROXY_QUOTE_T_SINGLE); }
+#line 117 "ob_func_expr_parser.l"
+{ return FUNC_MOD; }
 	YY_BREAK
 case 16:
 YY_RULE_SETUP
-#line 117 "ob_func_expr_parser.l"
-{ RETURN_NAME_OB_WITH_QUOTE(OBPROXY_QUOTE_T_DOUBLE); }
+#line 118 "ob_func_expr_parser.l"
+{ return FUNC_SYSDATE; }
 	YY_BREAK
 case 17:
 YY_RULE_SETUP
-#line 118 "ob_func_expr_parser.l"
-{ RETURN_NAME_OB_WITH_QUOTE(OBPROXY_QUOTE_T_BACK); }
+#line 120 "ob_func_expr_parser.l"
+{ return TOKEN_SPECIAL; }
 	YY_BREAK
 case 18:
-/* rule 18 can match eol */
 YY_RULE_SETUP
-#line 119 "ob_func_expr_parser.l"
-{ }
+#line 122 "ob_func_expr_parser.l"
+{ RETURN_INT_VAL(); }
 	YY_BREAK
 case 19:
 YY_RULE_SETUP
-#line 120 "ob_func_expr_parser.l"
+#line 123 "ob_func_expr_parser.l"
+{ RETURN_NUMBER_VAL(); }
+	YY_BREAK
+case 20:
+YY_RULE_SETUP
+#line 124 "ob_func_expr_parser.l"
+{ RETURN_NAME_OB(); }
+	YY_BREAK
+case 21:
+YY_RULE_SETUP
+#line 125 "ob_func_expr_parser.l"
+{ RETURN_NAME_OB_WITH_QUOTE(OBPROXY_QUOTE_T_SINGLE); }
+	YY_BREAK
+case 22:
+YY_RULE_SETUP
+#line 126 "ob_func_expr_parser.l"
+{ RETURN_NAME_OB_WITH_QUOTE(OBPROXY_QUOTE_T_DOUBLE); }
+	YY_BREAK
+case 23:
+YY_RULE_SETUP
+#line 127 "ob_func_expr_parser.l"
+{ RETURN_NAME_OB_WITH_QUOTE(OBPROXY_QUOTE_T_BACK); }
+	YY_BREAK
+case 24:
+/* rule 24 can match eol */
+YY_RULE_SETUP
+#line 128 "ob_func_expr_parser.l"
+{ }
+	YY_BREAK
+case 25:
+YY_RULE_SETUP
+#line 129 "ob_func_expr_parser.l"
 { return yytext[0]; }
 	YY_BREAK
 /* comment */
-case 20:
+case 26:
 YY_RULE_SETUP
-#line 123 "ob_func_expr_parser.l"
+#line 132 "ob_func_expr_parser.l"
 { PUSH_STATE(in_c_comment); }
 	YY_BREAK
-case 21:
+case 27:
 YY_RULE_SETUP
-#line 124 "ob_func_expr_parser.l"
+#line 133 "ob_func_expr_parser.l"
 { POP_STATE(); }
 	YY_BREAK
-case 22:
-/* rule 22 can match eol */
+case 28:
+/* rule 28 can match eol */
 YY_RULE_SETUP
-#line 125 "ob_func_expr_parser.l"
+#line 134 "ob_func_expr_parser.l"
 {}
 	YY_BREAK
-case 23:
+case 29:
 YY_RULE_SETUP
-#line 126 "ob_func_expr_parser.l"
+#line 135 "ob_func_expr_parser.l"
 {}
 	YY_BREAK
 /* quote */
-case 24:
+case 30:
 YY_RULE_SETUP
-#line 129 "ob_func_expr_parser.l"
+#line 138 "ob_func_expr_parser.l"
 {
   PUSH_STATE(sq);
   ObFuncExprParseResult *p = (ObFuncExprParseResult *)yyextra;
@@ -1059,10 +1178,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 25:
-/* rule 25 can match eol */
+case 31:
+/* rule 31 can match eol */
 YY_RULE_SETUP
-#line 139 "ob_func_expr_parser.l"
+#line 148 "ob_func_expr_parser.l"
 {
   ObFuncExprParseResult *p = (ObFuncExprParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -1070,9 +1189,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 26:
+case 32:
 YY_RULE_SETUP
-#line 146 "ob_func_expr_parser.l"
+#line 155 "ob_func_expr_parser.l"
 {
   POP_STATE();
   ObFuncExprParseResult *p = (ObFuncExprParseResult *)yyextra;
@@ -1082,31 +1201,31 @@ YY_RULE_SETUP
   return STR_VAL;
 }
 	YY_BREAK
-case 27:
+case 33:
 YY_RULE_SETUP
-#line 155 "ob_func_expr_parser.l"
+#line 164 "ob_func_expr_parser.l"
 {}
 	YY_BREAK
-case 28:
-/* rule 28 can match eol */
+case 34:
+/* rule 34 can match eol */
 YY_RULE_SETUP
-#line 156 "ob_func_expr_parser.l"
+#line 165 "ob_func_expr_parser.l"
 {}
 	YY_BREAK
-case 29:
-/* rule 29 can match eol */
+case 35:
+/* rule 35 can match eol */
 YY_RULE_SETUP
-#line 157 "ob_func_expr_parser.l"
+#line 166 "ob_func_expr_parser.l"
 {}
 	YY_BREAK
 case YY_STATE_EOF(sq):
-#line 158 "ob_func_expr_parser.l"
+#line 167 "ob_func_expr_parser.l"
 { return ERROR; }
 	YY_BREAK
 /* dquote */
-case 30:
+case 36:
 YY_RULE_SETUP
-#line 162 "ob_func_expr_parser.l"
+#line 171 "ob_func_expr_parser.l"
 {
   PUSH_STATE(dq);
   ObFuncExprParseResult *p = (ObFuncExprParseResult *)yyextra;
@@ -1117,10 +1236,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 31:
-/* rule 31 can match eol */
+case 37:
+/* rule 37 can match eol */
 YY_RULE_SETUP
-#line 172 "ob_func_expr_parser.l"
+#line 181 "ob_func_expr_parser.l"
 {
   ObFuncExprParseResult *p = (ObFuncExprParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -1128,9 +1247,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 32:
+case 38:
 YY_RULE_SETUP
-#line 179 "ob_func_expr_parser.l"
+#line 188 "ob_func_expr_parser.l"
 {
   POP_STATE();
   ObFuncExprParseResult *p = (ObFuncExprParseResult *)yyextra;
@@ -1140,31 +1259,31 @@ YY_RULE_SETUP
   return STR_VAL;
 }
 	YY_BREAK
-case 33:
+case 39:
 YY_RULE_SETUP
-#line 188 "ob_func_expr_parser.l"
+#line 197 "ob_func_expr_parser.l"
 {}
 	YY_BREAK
-case 34:
-/* rule 34 can match eol */
+case 40:
+/* rule 40 can match eol */
 YY_RULE_SETUP
-#line 189 "ob_func_expr_parser.l"
+#line 198 "ob_func_expr_parser.l"
 {}
 	YY_BREAK
-case 35:
-/* rule 35 can match eol */
+case 41:
+/* rule 41 can match eol */
 YY_RULE_SETUP
-#line 190 "ob_func_expr_parser.l"
+#line 199 "ob_func_expr_parser.l"
 {}
 	YY_BREAK
 case YY_STATE_EOF(dq):
-#line 191 "ob_func_expr_parser.l"
+#line 200 "ob_func_expr_parser.l"
 { return ERROR; }
 	YY_BREAK
 /* backtick */
-case 36:
+case 42:
 YY_RULE_SETUP
-#line 195 "ob_func_expr_parser.l"
+#line 204 "ob_func_expr_parser.l"
 {
   PUSH_STATE(bt);
   ObFuncExprParseResult *p = (ObFuncExprParseResult *)yyextra;
@@ -1175,9 +1294,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 37:
+case 43:
 YY_RULE_SETUP
-#line 205 "ob_func_expr_parser.l"
+#line 214 "ob_func_expr_parser.l"
 {
   ObFuncExprParseResult *p = (ObFuncExprParseResult *)yyextra;
   if (NULL != p && NULL != p->tmp_buf_ && p->tmp_len_ + 1 < OBPROXY_MAX_NAME_LENGTH) {
@@ -1185,10 +1304,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 38:
-/* rule 38 can match eol */
+case 44:
+/* rule 44 can match eol */
 YY_RULE_SETUP
-#line 212 "ob_func_expr_parser.l"
+#line 221 "ob_func_expr_parser.l"
 {
   ObFuncExprParseResult *p = (ObFuncExprParseResult *)yyextra;
   if (NULL != p && NULL != p->tmp_buf_ && p->tmp_len_ + yyleng < OBPROXY_MAX_NAME_LENGTH) {
@@ -1197,9 +1316,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 39:
+case 45:
 YY_RULE_SETUP
-#line 220 "ob_func_expr_parser.l"
+#line 229 "ob_func_expr_parser.l"
 {
   POP_STATE();
   ObFuncExprParseResult *p = (ObFuncExprParseResult *)yyextra;
@@ -1212,27 +1331,27 @@ YY_RULE_SETUP
 }
 	YY_BREAK
 case YY_STATE_EOF(bt):
-#line 231 "ob_func_expr_parser.l"
+#line 240 "ob_func_expr_parser.l"
 {
   return ERROR;
 }
 	YY_BREAK
 case YY_STATE_EOF(INITIAL):
 case YY_STATE_EOF(in_c_comment):
-#line 235 "ob_func_expr_parser.l"
+#line 244 "ob_func_expr_parser.l"
 { return END_P; }
 	YY_BREAK
-case 40:
+case 46:
 YY_RULE_SETUP
-#line 236 "ob_func_expr_parser.l"
+#line 245 "ob_func_expr_parser.l"
 { return IGNORED_WORD; }
 	YY_BREAK
-case 41:
+case 47:
 YY_RULE_SETUP
-#line 237 "ob_func_expr_parser.l"
+#line 246 "ob_func_expr_parser.l"
 ECHO;
 	YY_BREAK
-#line 1238 "ob_func_expr_parser_lex.c"
+#line 1357 "ob_func_expr_parser_lex.c"
 
 	case YY_END_OF_BUFFER:
 		{
@@ -1524,7 +1643,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 		while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 			{
 			yy_current_state = (int) yy_def[yy_current_state];
-			if ( yy_current_state >= 115 )
+			if ( yy_current_state >= 201 )
 				yy_c = yy_meta[(unsigned int) yy_c];
 			}
 		yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
@@ -1553,11 +1672,11 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 	while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 		{
 		yy_current_state = (int) yy_def[yy_current_state];
-		if ( yy_current_state >= 115 )
+		if ( yy_current_state >= 201 )
 			yy_c = yy_meta[(unsigned int) yy_c];
 		}
 	yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
-	yy_is_jam = (yy_current_state == 114);
+	yy_is_jam = (yy_current_state == 200);
 
 	return yy_is_jam ? 0 : yy_current_state;
 }
@@ -2382,7 +2501,7 @@ static int yy_flex_strlen (yyconst char * s , yyscan_t yyscanner)
 
 #define YYTABLES_NAME "yytables"
 
-#line 237 "ob_func_expr_parser.l"
+#line 246 "ob_func_expr_parser.l"
 
 
 
@@ -2511,13 +2630,19 @@ extern int obfuncexprdebug;
      FUNC_SUB = 266,
      FUNC_MUL = 267,
      FUNC_TESTLOAD = 268,
-     END_P = 269,
-     ERROR = 270,
-     IGNORED_WORD = 271,
-     NAME_OB = 272,
-     STR_VAL = 273,
-     NUMBER_VAL = 274,
-     INT_VAL = 275
+     FUNC_TO_DATE = 269,
+     FUNC_TO_TIMESTAMP = 270,
+     FUNC_NVL = 271,
+     FUNC_TO_CHAR = 272,
+     FUNC_MOD = 273,
+     FUNC_SYSDATE = 274,
+     END_P = 275,
+     ERROR = 276,
+     IGNORED_WORD = 277,
+     NAME_OB = 278,
+     STR_VAL = 279,
+     NUMBER_VAL = 280,
+     INT_VAL = 281
    };
 #endif
 
diff --git a/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_lex.h b/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_lex.h
index 14f5fb50..3d8a11e8 100644
--- a/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_lex.h
+++ b/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_lex.h
@@ -341,7 +341,7 @@ extern int obfuncexprlex \
 #undef YY_DECL
 #endif
 
-#line 237 "ob_func_expr_parser.l"
+#line 246 "ob_func_expr_parser.l"
 
 
 #line 348 "ob_func_expr_parser_lex.h"
diff --git a/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_tab.c b/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_tab.c
index 49ab7202..abb23646 100644
--- a/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_tab.c
+++ b/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_tab.c
@@ -138,13 +138,19 @@ extern int obfuncexprdebug;
      FUNC_SUB = 266,
      FUNC_MUL = 267,
      FUNC_TESTLOAD = 268,
-     END_P = 269,
-     ERROR = 270,
-     IGNORED_WORD = 271,
-     NAME_OB = 272,
-     STR_VAL = 273,
-     NUMBER_VAL = 274,
-     INT_VAL = 275
+     FUNC_TO_DATE = 269,
+     FUNC_TO_TIMESTAMP = 270,
+     FUNC_NVL = 271,
+     FUNC_TO_CHAR = 272,
+     FUNC_MOD = 273,
+     FUNC_SYSDATE = 274,
+     END_P = 275,
+     ERROR = 276,
+     IGNORED_WORD = 277,
+     NAME_OB = 278,
+     STR_VAL = 279,
+     NUMBER_VAL = 280,
+     INT_VAL = 281
    };
 #endif
 
@@ -460,22 +466,22 @@ union yyalloc
 #endif
 
 /* YYFINAL -- State number of the termination state.  */
-#define YYFINAL  15
+#define YYFINAL  22
 /* YYLAST -- Last index in YYTABLE.  */
-#define YYLAST   46
+#define YYLAST   64
 
 /* YYNTOKENS -- Number of terminals.  */
-#define YYNTOKENS  24
+#define YYNTOKENS  30
 /* YYNNTS -- Number of nonterminals.  */
-#define YYNNTS  7
+#define YYNNTS  8
 /* YYNRULES -- Number of rules.  */
-#define YYNRULES  22
+#define YYNRULES  29
 /* YYNRULES -- Number of states.  */
-#define YYNSTATES  30
+#define YYNSTATES  37
 
 /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
 #define YYUNDEFTOK  2
-#define YYMAXUTOK   275
+#define YYMAXUTOK   281
 
 #define YYTRANSLATE(YYX)						\
   ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
@@ -487,7 +493,7 @@ static const yytype_uint8 yytranslate[] =
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-      21,    22,     2,     2,    23,     2,     2,     2,     2,     2,
+      27,    28,     2,     2,    29,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
@@ -510,7 +516,8 @@ static const yytype_uint8 yytranslate[] =
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
        5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
-      15,    16,    17,    18,    19,    20
+      15,    16,    17,    18,    19,    20,    21,    22,    23,    24,
+      25,    26
 };
 
 #if YYDEBUG
@@ -519,27 +526,28 @@ static const yytype_uint8 yytranslate[] =
 static const yytype_uint8 yyprhs[] =
 {
        0,     0,     3,     5,     7,     9,    14,    18,    20,    22,
-      24,    26,    28,    30,    32,    34,    36,    38,    42,    46,
-      48,    50,    52
+      24,    26,    28,    30,    32,    34,    36,    38,    40,    42,
+      44,    46,    48,    50,    52,    56,    60,    62,    64,    66
 };
 
 /* YYRHS -- A `-1'-separated list of the rules' RHS.  */
 static const yytype_int8 yyrhs[] =
 {
-      25,     0,    -1,    26,    -1,    27,    -1,     1,    -1,    28,
-      21,    29,    22,    -1,    28,    21,    22,    -1,     5,    -1,
-       6,    -1,     7,    -1,     8,    -1,     9,    -1,    10,    -1,
-      11,    -1,    12,    -1,    13,    -1,    30,    -1,    29,    23,
-      30,    -1,     4,    17,     4,    -1,    17,    -1,    20,    -1,
-      18,    -1,    27,    -1
+      31,     0,    -1,    32,    -1,    33,    -1,     1,    -1,    34,
+      27,    36,    28,    -1,    34,    27,    28,    -1,    35,    -1,
+       5,    -1,     6,    -1,     7,    -1,     8,    -1,     9,    -1,
+      10,    -1,    11,    -1,    12,    -1,    13,    -1,    14,    -1,
+      15,    -1,    16,    -1,    17,    -1,    18,    -1,    19,    -1,
+      37,    -1,    36,    29,    37,    -1,     4,    23,     4,    -1,
+      23,    -1,    26,    -1,    24,    -1,    33,    -1
 };
 
 /* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
 static const yytype_uint8 yyrline[] =
 {
-       0,    96,    96,    98,   104,   106,   111,   117,   118,   119,
-     120,   121,   122,   123,   124,   125,   127,   131,   137,   138,
-     139,   140,   141
+       0,    97,    97,    99,   105,   107,   112,   117,   123,   124,
+     125,   126,   127,   128,   129,   130,   131,   132,   133,   134,
+     135,   136,   138,   140,   144,   150,   151,   152,   153,   154
 };
 #endif
 
@@ -550,10 +558,12 @@ static const char *const yytname[] =
 {
   "$end", "error", "$undefined", "DUMMY_FUNCTION_CLAUSE", "TOKEN_SPECIAL",
   "FUNC_SUBSTR", "FUNC_CONCAT", "FUNC_HASH", "FUNC_TOINT", "FUNC_DIV",
-  "FUNC_ADD", "FUNC_SUB", "FUNC_MUL", "FUNC_TESTLOAD", "END_P", "ERROR",
-  "IGNORED_WORD", "NAME_OB", "STR_VAL", "NUMBER_VAL", "INT_VAL", "'('",
-  "')'", "','", "$accept", "start", "func_root", "func_expr", "func_name",
-  "param_list", "param", 0
+  "FUNC_ADD", "FUNC_SUB", "FUNC_MUL", "FUNC_TESTLOAD", "FUNC_TO_DATE",
+  "FUNC_TO_TIMESTAMP", "FUNC_NVL", "FUNC_TO_CHAR", "FUNC_MOD",
+  "FUNC_SYSDATE", "END_P", "ERROR", "IGNORED_WORD", "NAME_OB", "STR_VAL",
+  "NUMBER_VAL", "INT_VAL", "'('", "')'", "','", "$accept", "start",
+  "func_root", "func_expr", "func_name", "reserved_func", "param_list",
+  "param", 0
 };
 #endif
 
@@ -564,24 +574,24 @@ static const yytype_uint16 yytoknum[] =
 {
        0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
      265,   266,   267,   268,   269,   270,   271,   272,   273,   274,
-     275,    40,    41,    44
+     275,   276,   277,   278,   279,   280,   281,    40,    41,    44
 };
 # endif
 
 /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
 static const yytype_uint8 yyr1[] =
 {
-       0,    24,    25,    26,    26,    27,    27,    28,    28,    28,
-      28,    28,    28,    28,    28,    28,    29,    29,    30,    30,
-      30,    30,    30
+       0,    30,    31,    32,    32,    33,    33,    33,    34,    34,
+      34,    34,    34,    34,    34,    34,    34,    34,    34,    34,
+      34,    34,    35,    36,    36,    37,    37,    37,    37,    37
 };
 
 /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
 static const yytype_uint8 yyr2[] =
 {
        0,     2,     1,     1,     1,     4,     3,     1,     1,     1,
-       1,     1,     1,     1,     1,     1,     1,     3,     3,     1,
-       1,     1,     1
+       1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
+       1,     1,     1,     1,     3,     3,     1,     1,     1,     1
 };
 
 /* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
@@ -589,15 +599,16 @@ static const yytype_uint8 yyr2[] =
    means the default is an error.  */
 static const yytype_uint8 yydefact[] =
 {
-       0,     4,     7,     8,     9,    10,    11,    12,    13,    14,
-      15,     0,     2,     3,     0,     1,     0,     0,    19,    21,
-      20,     6,    22,     0,    16,     0,     5,     0,    18,    17
+       0,     4,     8,     9,    10,    11,    12,    13,    14,    15,
+      16,    17,    18,    19,    20,    21,    22,     0,     2,     3,
+       0,     7,     1,     0,     0,    26,    28,    27,     6,    29,
+       0,    23,     0,     5,     0,    25,    24
 };
 
 /* YYDEFGOTO[NTERM-NUM].  */
 static const yytype_int8 yydefgoto[] =
 {
-      -1,    11,    12,    22,    14,    23,    24
+      -1,    17,    18,    29,    20,    21,    30,    31
 };
 
 /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
@@ -605,15 +616,16 @@ static const yytype_int8 yydefgoto[] =
 #define YYPACT_NINF -13
 static const yytype_int8 yypact[] =
 {
-      33,   -13,   -13,   -13,   -13,   -13,   -13,   -13,   -13,   -13,
-     -13,    12,   -13,   -13,    -6,   -13,    -4,     0,   -13,   -13,
-     -13,   -13,   -13,   -12,   -13,    25,   -13,    15,   -13,   -13
+      45,   -13,   -13,   -13,   -13,   -13,   -13,   -13,   -13,   -13,
+     -13,   -13,   -13,   -13,   -13,   -13,   -13,    18,   -13,   -13,
+      -6,   -13,   -13,    -4,     0,   -13,   -13,   -13,   -13,   -13,
+     -12,   -13,    37,   -13,    21,   -13,   -13
 };
 
 /* YYPGOTO[NTERM-NUM].  */
 static const yytype_int8 yypgoto[] =
 {
-     -13,   -13,   -13,    30,   -13,   -13,     4
+     -13,   -13,   -13,    42,   -13,   -13,   -13,     9
 };
 
 /* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
@@ -623,20 +635,24 @@ static const yytype_int8 yypgoto[] =
 #define YYTABLE_NINF -1
 static const yytype_uint8 yytable[] =
 {
-      17,     2,     3,     4,     5,     6,     7,     8,     9,    10,
-      26,    27,    15,    18,    19,    16,    20,    25,    21,    17,
-       2,     3,     4,     5,     6,     7,     8,     9,    10,    28,
-      13,    29,    18,    19,     1,    20,     0,     0,     2,     3,
-       4,     5,     6,     7,     8,     9,    10
+      24,     2,     3,     4,     5,     6,     7,     8,     9,    10,
+      11,    12,    13,    14,    15,    16,    33,    34,    22,    25,
+      26,    23,    27,    32,    28,    24,     2,     3,     4,     5,
+       6,     7,     8,     9,    10,    11,    12,    13,    14,    15,
+      16,    35,    19,    36,    25,    26,     1,    27,     0,     0,
+       2,     3,     4,     5,     6,     7,     8,     9,    10,    11,
+      12,    13,    14,    15,    16
 };
 
 static const yytype_int8 yycheck[] =
 {
        4,     5,     6,     7,     8,     9,    10,    11,    12,    13,
-      22,    23,     0,    17,    18,    21,    20,    17,    22,     4,
-       5,     6,     7,     8,     9,    10,    11,    12,    13,     4,
-       0,    27,    17,    18,     1,    20,    -1,    -1,     5,     6,
-       7,     8,     9,    10,    11,    12,    13
+      14,    15,    16,    17,    18,    19,    28,    29,     0,    23,
+      24,    27,    26,    23,    28,     4,     5,     6,     7,     8,
+       9,    10,    11,    12,    13,    14,    15,    16,    17,    18,
+      19,     4,     0,    34,    23,    24,     1,    26,    -1,    -1,
+       5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
+      15,    16,    17,    18,    19
 };
 
 /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
@@ -644,8 +660,9 @@ static const yytype_int8 yycheck[] =
 static const yytype_uint8 yystos[] =
 {
        0,     1,     5,     6,     7,     8,     9,    10,    11,    12,
-      13,    25,    26,    27,    28,     0,    21,     4,    17,    18,
-      20,    22,    27,    29,    30,    17,    22,    23,     4,    30
+      13,    14,    15,    16,    17,    18,    19,    31,    32,    33,
+      34,    35,     0,    27,     4,    23,    24,    26,    28,    33,
+      36,    37,    23,    28,    29,     4,    37
 };
 
 #define yyerrok		(yyerrstatus = 0)
@@ -1528,57 +1545,95 @@ YYLTYPE yylloc;
 
   case 7:
 
-    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_SUBSTR; ;}
+    {
+            malloc_func_expr_node((yyval.func_node), result, (yyvsp[(1) - (1)].function_type));
+            (yyval.func_node)->child_ = NULL;
+          ;}
     break;
 
   case 8:
 
-    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_CONCAT; ;}
+    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_SUBSTR; ;}
     break;
 
   case 9:
 
-    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_HASH; ;}
+    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_CONCAT; ;}
     break;
 
   case 10:
 
-    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_TOINT; ;}
+    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_HASH; ;}
     break;
 
   case 11:
 
-    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_DIV; ;}
+    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_TOINT; ;}
     break;
 
   case 12:
 
-    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_ADD; ;}
+    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_DIV; ;}
     break;
 
   case 13:
 
-    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_SUB; ;}
+    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_ADD; ;}
     break;
 
   case 14:
 
-    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_MUL; ;}
+    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_SUB; ;}
     break;
 
   case 15:
 
-    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_TESTLOAD; ;}
+    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_MUL; ;}
     break;
 
   case 16:
 
+    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_TESTLOAD; ;}
+    break;
+
+  case 17:
+
+    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_TO_DATE; ;}
+    break;
+
+  case 18:
+
+    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_TO_TIMESTAMP; ;}
+    break;
+
+  case 19:
+
+    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_NVL; ;}
+    break;
+
+  case 20:
+
+    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_TO_CHAR; ;}
+    break;
+
+  case 21:
+
+    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_MOD; ;}
+    break;
+
+  case 22:
+
+    { (yyval.function_type) = OB_PROXY_EXPR_TYPE_FUNC_SYSDATE; ;}
+    break;
+
+  case 23:
+
     {
             malloc_list((yyval.list), result, (yyvsp[(1) - (1)].param_node));
           ;}
     break;
 
-  case 17:
+  case 24:
 
     {
             add_param_node((yyvsp[(1) - (3)].list), result, (yyvsp[(3) - (3)].param_node));
@@ -1586,27 +1641,27 @@ YYLTYPE yylloc;
           ;}
     break;
 
-  case 18:
+  case 25:
 
     { malloc_param_node((yyval.param_node), result, PARAM_COLUMN); (yyval.param_node)->col_name_ = (yyvsp[(2) - (3)].str); ;}
     break;
 
-  case 19:
+  case 26:
 
     { malloc_param_node((yyval.param_node), result, PARAM_COLUMN); (yyval.param_node)->col_name_ = (yyvsp[(1) - (1)].str); ;}
     break;
 
-  case 20:
+  case 27:
 
     { malloc_param_node((yyval.param_node), result, PARAM_INT_VAL); (yyval.param_node)->int_value_ = (yyvsp[(1) - (1)].num); ;}
     break;
 
-  case 21:
+  case 28:
 
     { malloc_param_node((yyval.param_node), result, PARAM_STR_VAL); (yyval.param_node)->str_value_ = (yyvsp[(1) - (1)].str); ;}
     break;
 
-  case 22:
+  case 29:
 
     { malloc_param_node((yyval.param_node), result, PARAM_FUNC); (yyval.param_node)->func_expr_node_ = (yyvsp[(1) - (1)].func_node); ;}
     break;
diff --git a/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_tab.h b/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_tab.h
index 1eb7984e..4f199b4b 100644
--- a/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_tab.h
+++ b/src/obproxy/opsql/func_expr_parser/ob_func_expr_parser_tab.h
@@ -67,13 +67,19 @@ extern int obfuncexprdebug;
      FUNC_SUB = 266,
      FUNC_MUL = 267,
      FUNC_TESTLOAD = 268,
-     END_P = 269,
-     ERROR = 270,
-     IGNORED_WORD = 271,
-     NAME_OB = 272,
-     STR_VAL = 273,
-     NUMBER_VAL = 274,
-     INT_VAL = 275
+     FUNC_TO_DATE = 269,
+     FUNC_TO_TIMESTAMP = 270,
+     FUNC_NVL = 271,
+     FUNC_TO_CHAR = 272,
+     FUNC_MOD = 273,
+     FUNC_SYSDATE = 274,
+     END_P = 275,
+     ERROR = 276,
+     IGNORED_WORD = 277,
+     NAME_OB = 278,
+     STR_VAL = 279,
+     NUMBER_VAL = 280,
+     INT_VAL = 281
    };
 #endif
 
diff --git a/src/obproxy/opsql/func_expr_resolver/ob_func_expr_resolver.cpp b/src/obproxy/opsql/func_expr_resolver/ob_func_expr_resolver.cpp
index f586ef93..c8b4dffb 100644
--- a/src/obproxy/opsql/func_expr_resolver/ob_func_expr_resolver.cpp
+++ b/src/obproxy/opsql/func_expr_resolver/ob_func_expr_resolver.cpp
@@ -50,6 +50,11 @@ int ObFuncExprResolver::recursive_resolve_proxy_expr(const ObProxyParamNode *nod
         ObProxyExprConst *str_expr = NULL;
         if(OB_FAIL(ctx_.expr_factory_->create_proxy_expr(OB_PROXY_EXPR_TYPE_CONST, str_expr))) {
           LOG_WARN("create proxy expr failed", K(ret));
+        } else if (0 == node->str_value_.str_len_) {
+          ObObj &obj = str_expr->get_object();
+          obj.set_varchar(NULL, 0);
+          obj.set_collation_type(CS_TYPE_UTF8MB4_GENERAL_CI);
+          expr = str_expr;
         } else {
           ObIAllocator &allocator = *ctx_.allocator_;
           char *buf = NULL;
@@ -103,6 +108,8 @@ int ObFuncExprResolver::recursive_resolve_proxy_expr(const ObProxyParamNode *nod
         ObProxyFuncExpr *func_expr = NULL;
         if (OB_FAIL(create_func_expr_by_type(func_expr_node, func_expr))) {
           LOG_WARN("create func expr by type failed", K(ret));
+        } else if (OB_ISNULL(func_expr_node->child_)) {
+          // do nothing 
         } else {
           ObProxyParamNodeList *child = func_expr_node->child_;
           ObProxyParamNode* tmp_param_node = child->head_;
@@ -242,6 +249,68 @@ int ObFuncExprResolver::create_func_expr_by_type(const ObFuncExprNode *func_expr
         }
       }
       break;
+      case OB_PROXY_EXPR_TYPE_FUNC_TO_DATE:
+      {
+        ObProxyExprToTimeHandler *todate_expr = NULL;
+        if (OB_FAIL(ctx_.expr_factory_->create_proxy_expr(OB_PROXY_EXPR_TYPE_FUNC_TO_DATE, todate_expr))) {
+          LOG_WARN("create proxy to_date failed", K(ret));
+        } else {
+          todate_expr->set_target_type(ObDateTimeType);
+          func_expr = todate_expr;
+        }
+      }
+      break;
+      case OB_PROXY_EXPR_TYPE_FUNC_TO_TIMESTAMP:
+      {
+        ObProxyExprToTimeHandler *totimestamp_expr = NULL;
+        if (OB_FAIL(ctx_.expr_factory_->create_proxy_expr(OB_PROXY_EXPR_TYPE_FUNC_TO_TIMESTAMP, totimestamp_expr))) {
+          LOG_WARN("create proxy to_timestamp failed", K(ret));
+        } else {
+          totimestamp_expr->set_target_type(ObTimestampNanoType);
+          func_expr = totimestamp_expr;
+        }
+      }
+      break;
+      case OB_PROXY_EXPR_TYPE_FUNC_NVL:
+      {
+        ObProxyExprNvl *nvl_expr = NULL;
+        if (OB_FAIL(ctx_.expr_factory_->create_proxy_expr(OB_PROXY_EXPR_TYPE_FUNC_NVL, nvl_expr))) {
+          LOG_WARN("create proxy nvl failed", K(ret));
+        } else {
+          func_expr = nvl_expr;
+        }
+      }
+      break;
+      case OB_PROXY_EXPR_TYPE_FUNC_TO_CHAR:
+      {
+        ObProxyExprToChar *tochar_expr = NULL;
+        if (OB_FAIL(ctx_.expr_factory_->create_proxy_expr(OB_PROXY_EXPR_TYPE_FUNC_TO_CHAR, tochar_expr))) {
+          LOG_WARN("create proxy to_char failed", K(ret));
+        } else {
+          func_expr = tochar_expr;
+        }
+      }
+      break;
+      case OB_PROXY_EXPR_TYPE_FUNC_SYSDATE:
+      {
+        ObProxyExprSysdate *sysdate_expr = NULL;
+        if (OB_FAIL(ctx_.expr_factory_->create_proxy_expr(OB_PROXY_EXPR_TYPE_FUNC_SYSDATE, sysdate_expr))) {
+          LOG_WARN("create proxy sysdate failed", K(ret));
+        } else {
+          func_expr = sysdate_expr;
+        }
+      }
+      break;
+      case OB_PROXY_EXPR_TYPE_FUNC_MOD:
+      {
+        ObProxyExprMod *mod_expr = NULL;
+        if (OB_FAIL(ctx_.expr_factory_->create_proxy_expr(OB_PROXY_EXPR_TYPE_FUNC_MOD, mod_expr))) {
+          LOG_WARN("create proxy mod failed", K(ret));
+        } else {
+          func_expr = mod_expr;
+        }
+      }
+      break;
       default:
       ret = OB_ERR_UNEXPECTED;
       LOG_WARN("unexpected type", K(func_expr_node->func_type_), K(ret));
diff --git a/src/obproxy/opsql/func_expr_resolver/proxy_expr/ob_proxy_expr.cpp b/src/obproxy/opsql/func_expr_resolver/proxy_expr/ob_proxy_expr.cpp
index 9c3bb18f..323a9a14 100644
--- a/src/obproxy/opsql/func_expr_resolver/proxy_expr/ob_proxy_expr.cpp
+++ b/src/obproxy/opsql/func_expr_resolver/proxy_expr/ob_proxy_expr.cpp
@@ -12,10 +12,16 @@
 
 #define USING_LOG_PREFIX PROXY
 
-#include "common/ob_obj_cast.h"
 #include "opsql/func_expr_resolver/proxy_expr/ob_proxy_expr.h"
-#include "utils/ob_proxy_utils.h"
+#include "common/ob_obj_cast.h"
+#include "common/ob_obj_type.h"
 #include "dbconfig/ob_proxy_db_config_info.h"
+#include "lib/time/ob_time_utility.h"
+#include "proxy/route/obproxy_expr_calculator.h"
+#include "utils/ob_proxy_utils.h"
+#include "common/expression/ob_expr_regexp_context.h"
+#include "lib/utility/utility.h"
+#include <time.h>
 
 namespace oceanbase
 {
@@ -226,10 +232,10 @@ int ObProxyExprColumn::calc(const ObProxyExprCtx &ctx, const ObProxyExprCalcItem
   } else if (result_obj_array.count() == len && ObProxyExprCalcItem::FROM_SQL_FIELD == calc_item.source_) {
     bool found = false;
     for (int64_t i = 0; OB_SUCC(ret) && i < calc_item.sql_result_->field_num_; i++) {
-      SqlField &field = calc_item.sql_result_->fields_.at(i);
-      if (0 == field.column_name_.string_.case_compare(column_name_)) {
+      SqlField* field = calc_item.sql_result_->fields_.at(i);
+      if (0 == field->column_name_.config_string_.case_compare(column_name_)) {
         found = true;
-        common::ObSEArray<SqlColumnValue, 3> &column_values = field.column_values_;
+        common::ObSEArray<SqlColumnValue, 3> &column_values = field->column_values_;
         for (int64_t j = 0; OB_SUCC(ret) && j < column_values.count(); j++) {
           ObObj result_obj;
           SqlColumnValue &sql_column_value = column_values.at(j);
@@ -240,7 +246,7 @@ int ObProxyExprColumn::calc(const ObProxyExprCtx &ctx, const ObProxyExprCalcItem
               LOG_WARN("push back obj failed", K(ret), K(result_obj));
             }
           } else if (TOKEN_STR_VAL == sql_column_value.value_type_) {
-            ObString value = sql_column_value.column_value_.string_;
+            ObString value = sql_column_value.column_value_.config_string_;
             result_obj.set_varchar(value);
             result_obj.set_collation_type(CS_TYPE_UTF8MB4_GENERAL_CI);
             if (OB_FAIL(result_obj_array.push_back(result_obj))) {
@@ -362,26 +368,19 @@ int ObProxyFuncExpr::calc_param_expr(const ObProxyExprCtx &ctx,
   return ret;
 }
 
-int ObProxyFuncExpr::get_int_obj(const ObObj &src, ObObj &dst)
+int ObProxyFuncExpr::get_int_obj(const ObObj &src, ObObj &dst, common::ObIAllocator &allocator)
 {
   int ret = OB_SUCCESS;
 
-  if (src.is_varchar()) {
-    ObString str;
-    int64_t val;
-    if (OB_FAIL(src.get_varchar(str))) {
-      LOG_WARN("get varchar failed", K(ret));
-    } else if (OB_FAIL(get_int_value(str, val))) {
-      LOG_WARN("get int value failed", K(ret), K(src));
-    } else {
-      dst.set_int(val);
+  if (!src.is_int()) {
+    ObCollationType collation = ObCharset::get_default_collation(ObCharset::get_default_charset());
+    ObCastCtx cast_ctx(&allocator, NULL, CM_NULL_ON_WARN, collation);
+    if (OB_FAIL(ObObjCasterV2::to_type(ObIntType, collation, cast_ctx, src, dst))) {
+      LOG_WARN("cast obj to varchar obj fail", K(ret));
     }
-  } else if (src.is_int()) {
-    dst = src;
   } else {
-    ret = OB_EXPR_CALC_ERROR;
-    LOG_WARN("invalid type to int", K(ret));
-  }
+    dst = src;
+  } 
 
   return ret;
 }
@@ -389,22 +388,14 @@ int ObProxyFuncExpr::get_int_obj(const ObObj &src, ObObj &dst)
 int ObProxyFuncExpr::get_varchar_obj(const common::ObObj &src, common::ObObj &dst, common::ObIAllocator &allocator)
 {
   int ret = OB_SUCCESS;
-  if (src.is_int()) {
-    char *buf = NULL;
-    const int64_t buf_len = 256;
-    if (OB_ISNULL(buf = static_cast<char*>(allocator.alloc(buf_len)))) {
-      ret = OB_ALLOCATE_MEMORY_FAILED;
-      LOG_WARN("alloc buf failed", K(ret), K(buf_len));
-    } else {
-      snprintf(buf, buf_len, "%ld", src.get_int());
-      dst.set_varchar(buf, static_cast<ObString::obstr_size_t>(strlen(buf)));
-      dst.set_collation_type(CS_TYPE_UTF8MB4_GENERAL_CI);
+  if (!src.is_varchar()) {
+    ObCollationType collation = ObCharset::get_default_collation(ObCharset::get_default_charset());
+    ObCastCtx cast_ctx(&allocator, NULL, CM_NULL_ON_WARN, collation);
+    if (OB_FAIL(ObObjCasterV2::to_type(ObVarcharType, collation, cast_ctx, src, dst))) {
+      LOG_WARN("cast obj to varchar obj fail", K(ret));
     }
   } else if (src.is_varchar()) {
     dst = src;
-  } else {
-    ret = OB_EXPR_CALC_ERROR;
-    LOG_INFO("get varchar obj failed", K(src), K(ret));
   }
 
   return ret;
@@ -456,7 +447,7 @@ int ObProxyExprHash::calc(const ObProxyExprCtx &ctx,
             tmp_obj = param_result_array.at(j).at(i);
           }
           if (OB_FAIL(param_result.push_back(tmp_obj))) {
-            LOG_WARN("push back obj faile", K(ret), K(i), K(j));
+            LOG_WARN("push back obj failed", K(ret), K(i), K(j));
           }
         }
 
@@ -475,7 +466,7 @@ int ObProxyExprHash::calc(const ObProxyExprCtx &ctx,
             LOG_DEBUG("test load type", K(test_load_obj));
           }
 
-          if (OB_FAIL(get_int_obj(test_load_obj, obj1))) {
+          if (OB_FAIL(get_int_obj(test_load_obj, obj1, *ctx.allocator_))) {
             LOG_WARN("get int obj failed", K(ret), K(test_load_obj));
           } else if (OB_FAIL(obj1.get_int(index))) {
             LOG_WARN("get int failed", K(ret), K(obj1));
@@ -483,7 +474,7 @@ int ObProxyExprHash::calc(const ObProxyExprCtx &ctx,
 
           if (OB_SUCC(ret) && param_array_.count() == 2) {
             ObObj obj2;
-            if (OB_FAIL(get_int_obj(param_result.at(1), obj2))) {
+            if (OB_FAIL(get_int_obj(param_result.at(1), obj2, *ctx.allocator_))) {
               LOG_WARN("get int obj failed", K(ret));
             } else if (OB_FAIL(obj2.get_int(num))) {
               LOG_WARN("get int failed", K(ret));
@@ -507,7 +498,7 @@ int ObProxyExprHash::calc(const ObProxyExprCtx &ctx,
             }
           }
         }
-      } while (++i < cnt);
+      } while (OB_SUCC(ret) && ++i < cnt);
     }
   }
   ObProxyExpr::print_proxy_expr(this);
@@ -544,7 +535,7 @@ int ObProxyExprSubStr::calc(const ObProxyExprCtx &ctx,
             tmp_obj = param_result_array.at(j).at(i);
           }
           if (OB_FAIL(param_result.push_back(tmp_obj))) {
-            LOG_WARN("push back obj faile", K(ret), K(i), K(j));
+            LOG_WARN("push back obj failed", K(ret), K(i), K(j));
           }
         }
 
@@ -556,6 +547,9 @@ int ObProxyExprSubStr::calc(const ObProxyExprCtx &ctx,
           int64_t substr_len = -1;
           ObObj first_obj;
 
+          // substr retrun NULL on out of bounds params
+          bool is_invalid_params = false;
+
           if (OB_FAIL(get_varchar_obj(param_result.at(0), first_obj, *ctx.allocator_))) {
             LOG_WARN("get varchar obj failed", K(ret));
           } else if (OB_FAIL(first_obj.get_varchar(value))) {
@@ -567,26 +561,33 @@ int ObProxyExprSubStr::calc(const ObProxyExprCtx &ctx,
 
           if (OB_SUCC(ret)) {
             ObObj obj;
-            if (OB_FAIL(get_int_obj(param_result.at(1), obj))) {
+            if (OB_FAIL(get_int_obj(param_result.at(1), obj, *ctx.allocator_))) {
               LOG_WARN("get int obj failed", K(ret));
             } else if (OB_FAIL(obj.get_int(start_pos))) {
               LOG_WARN("get int failed", K(ret));
             }
           }
-
+          if (start_pos == 0) {
+            if (ctx.is_oracle_mode) {
+              // 1 and 0 treated as thr first character in oracle
+              start_pos = 1;
+            } else {
+              is_invalid_params = true;
+            }
+          }
           if (OB_SUCC(ret) && 3 == param_result.count()) {
             ObObj obj;
-            if (OB_FAIL(get_int_obj(param_result.at(2), obj))) {
+            if (OB_FAIL(get_int_obj(param_result.at(2), obj, *ctx.allocator_))) {
               LOG_WARN("get int obj failed", K(ret));
             } else if (OB_FAIL(obj.get_int(substr_len))) {
               LOG_WARN("get int failed", K(ret));
             } else if (substr_len <= 0) {
-              ret = OB_INVALID_ARGUMENT_FOR_SUBSTR;
-              LOG_WARN("substr function param 3 is less than 1", K(ret));
+              is_invalid_params = true;
+              LOG_DEBUG("substr function param 3 is less than 1", K(ret));
             }
           }
 
-          if (OB_SUCC(ret)) {
+          if (OB_SUCC(ret) && !is_invalid_params) {
             value_length = value.length();
             if (start_pos < 0) {
               start_pos = value_length + start_pos + 1;
@@ -597,26 +598,37 @@ int ObProxyExprSubStr::calc(const ObProxyExprCtx &ctx,
             }
 
             if (start_pos <= 0 || start_pos > value_length || substr_len <= 0 || substr_len > value_length || start_pos + substr_len - 1 > value_length) {
-              ret = OB_INVALID_ARGUMENT_FOR_SUBSTR;
-              LOG_WARN("column value length does not match", K(start_pos),
-                  K(substr_len), K(value_length), K(value), K(ret));
+              is_invalid_params = true;
+              LOG_DEBUG("invalid substr params", K(start_pos), K(substr_len), K(value_length), K(value), K(ret));
             }
+          }
 
-            if (OB_SUCC(ret)) {
+          if (OB_SUCC(ret)) {
+            if(is_invalid_params) {
+              if (ctx.is_oracle_mode) {
+                result_obj.set_null();
+              } else {
+                result_obj.set_varchar(ObString());
+              }
+            } else {
               ObString result_str;
               result_str.assign_ptr(value.ptr() + start_pos - 1, static_cast<int32_t>(substr_len));
               result_obj.set_varchar(result_str);
               result_obj.set_collation_type(CS_TYPE_UTF8MB4_GENERAL_CI);
-
               if (OB_FAIL(check_varchar_empty(result_obj))) {
                 LOG_WARN("check varchar emtpy failed", K(ret));
-              } else if (OB_FAIL(result_obj_array.push_back(result_obj))) {
-                LOG_WARN("result obj array push back failed", K(ret));
-              }
+              } 
             }
           }
+
+          if (OB_SUCC(ret)) {
+            if (OB_FAIL(result_obj_array.push_back(result_obj))) {
+              LOG_WARN("result obj array push back failed", K(ret));
+            }
+          }
+
         }
-      } while (++i < cnt);
+      } while (OB_SUCC(ret) && ++i < cnt);
     }
   }
   ObProxyExpr::print_proxy_expr(this);
@@ -653,7 +665,7 @@ int ObProxyExprConcat::calc(const ObProxyExprCtx &ctx,
             tmp_obj = param_result_array.at(j).at(i);
           }
           if (OB_FAIL(param_result.push_back(tmp_obj))) {
-            LOG_WARN("push back obj faile", K(ret), K(i), K(j));
+            LOG_WARN("push back obj failed", K(ret), K(i), K(j));
           }
         }
 
@@ -709,7 +721,7 @@ int ObProxyExprConcat::calc(const ObProxyExprCtx &ctx,
             }
           }
         }
-      } while (++i < cnt);
+      } while (OB_SUCC(ret) && ++i < cnt);
     }
   }
   ObProxyExpr::print_proxy_expr(this);
@@ -746,19 +758,19 @@ int ObProxyExprToInt::calc(const ObProxyExprCtx &ctx,
             tmp_obj = param_result_array.at(j).at(i);
           }
           if (OB_FAIL(param_result.push_back(tmp_obj))) {
-            LOG_WARN("push back obj faile", K(ret), K(i), K(j));
+            LOG_WARN("push back obj failed", K(ret), K(i), K(j));
           }
         }
         if (OB_SUCC(ret)) {
           ObObj result_obj;
           ObObj &obj = param_result.at(0);
-          if (OB_FAIL(get_int_obj(obj, result_obj))) {
+          if (OB_FAIL(get_int_obj(obj, result_obj, *ctx.allocator_))) {
             LOG_WARN("get int obj failed", K(ret));
           } else if (OB_FAIL(result_obj_array.push_back(result_obj))) {
             LOG_WARN("result obj array push back failed", K(ret));
           }
         }
-      } while (++i < cnt);
+      } while (OB_SUCC(ret) && ++i < cnt);
     }
   }
   ObProxyExpr::print_proxy_expr(this);
@@ -774,7 +786,7 @@ int ObProxyExprDiv::calc(const ObProxyExprCtx &ctx,
   common::ObSEArray<common::ObSEArray<common::ObObj, 4>, 4> param_result_array;
   int cnt = 0;
   int64_t len = result_obj_array.count();
- 
+
   if (-1 != index_ && ObProxyExprCalcItem::FROM_OBJ_ARRAY == calc_item.source_ && !has_agg_) {
     if (OB_FAIL(ObProxyExpr::calc(ctx, calc_item, result_obj_array))) {
       LOG_WARN("calc expr failed", K(ret));
@@ -799,7 +811,7 @@ int ObProxyExprDiv::calc(const ObProxyExprCtx &ctx,
             tmp_obj = param_result_array.at(j).at(i);
           }
           if (OB_FAIL(param_result.push_back(tmp_obj))) {
-            LOG_WARN("push back obj faile", K(ret), K(i), K(j));
+            LOG_WARN("push back obj failed", K(ret), K(i), K(j));
           }
         }
 
@@ -810,7 +822,7 @@ int ObProxyExprDiv::calc(const ObProxyExprCtx &ctx,
           if (ObDoubleTC == obj1.get_type_class() || ObDoubleTC == obj2.get_type_class()) {
             if (OB_FAIL((get_obj_for_calc<ObDoubleTC, ObDoubleType>(ctx.allocator_, obj1, obj2)))) {
               LOG_WARN("get double obj failed", K(obj1), K(obj2), K(ret));
-            } else if (fabs(obj2.get_double()) == 0.0) {
+            } else if (fabs(obj2.get_double()) < DBL_EPSILON) {
               result_obj.set_null();
             } else {
               double obj1_d = obj1.get_double();
@@ -820,6 +832,8 @@ int ObProxyExprDiv::calc(const ObProxyExprCtx &ctx,
           } else if (ObFloatTC == obj1.get_type_class() || ObFloatTC == obj2.get_type_class()) {
             if (OB_FAIL((get_obj_for_calc<ObFloatTC, ObFloatType>(ctx.allocator_, obj1, obj2)))) {
               LOG_WARN("get float obj failed", K(obj1), K(obj2), K(ret));
+            } else if (fabs(obj2.get_float()) < FLT_EPSILON) {
+              result_obj.set_null();
             } else {
               float obj1_f = obj1.get_float();
               float obj2_f = obj2.get_float();
@@ -846,9 +860,9 @@ int ObProxyExprDiv::calc(const ObProxyExprCtx &ctx,
               }
             }
           } else {
-            if (OB_FAIL(get_int_obj(param_result.at(0), obj1))) {
+            if (OB_FAIL(get_int_obj(param_result.at(0), obj1, *ctx.allocator_))) {
               LOG_WARN("get int obj failed", K(ret));
-            } else if (OB_FAIL(get_int_obj(param_result.at(1), obj2))) {
+            } else if (OB_FAIL(get_int_obj(param_result.at(1), obj2, *ctx.allocator_))) {
               LOG_WARN("get int obj failed", K(ret));
             } else {
               int64_t num1 = obj1.get_int();
@@ -866,7 +880,7 @@ int ObProxyExprDiv::calc(const ObProxyExprCtx &ctx,
             LOG_WARN("result obj array push back failed", K(ret));
           }
         }
-      } while (++i < cnt);
+      } while (OB_SUCC(ret) && ++i < cnt);
     }
   }
   ObProxyExpr::print_proxy_expr(this);
@@ -907,7 +921,7 @@ int ObProxyExprAdd::calc(const ObProxyExprCtx &ctx,
             tmp_obj = param_result_array.at(j).at(i);
           }
           if (OB_FAIL(param_result.push_back(tmp_obj))) {
-            LOG_WARN("push back obj faile", K(ret), K(i), K(j));
+            LOG_WARN("push back obj failed", K(ret), K(i), K(j));
           }
         }
 
@@ -950,9 +964,9 @@ int ObProxyExprAdd::calc(const ObProxyExprCtx &ctx,
               }
             }
           } else {
-            if (OB_FAIL(get_int_obj(param_result.at(0), obj1))) {
+            if (OB_FAIL(get_int_obj(param_result.at(0), obj1, *ctx.allocator_))) {
               LOG_WARN("get int obj failed", K(ret));
-            } else if (OB_FAIL(get_int_obj(param_result.at(1), obj2))) {
+            } else if (OB_FAIL(get_int_obj(param_result.at(1), obj2, *ctx.allocator_))) {
               LOG_WARN("get int obj failed", K(ret));
             } else {
               int64_t num1 = obj1.get_int();
@@ -970,7 +984,7 @@ int ObProxyExprAdd::calc(const ObProxyExprCtx &ctx,
             LOG_WARN("result obj array push back failed", K(ret));
           }
         }
-      } while (++i < cnt);
+      } while (OB_SUCC(ret) && ++i < cnt);
     }
   }
   ObProxyExpr::print_proxy_expr(this);
@@ -1011,7 +1025,7 @@ int ObProxyExprSub::calc(const ObProxyExprCtx &ctx,
             tmp_obj = param_result_array.at(j).at(i);
           }
           if (OB_FAIL(param_result.push_back(tmp_obj))) {
-            LOG_WARN("push back obj faile", K(ret), K(i), K(j));
+            LOG_WARN("push back obj failed", K(ret), K(i), K(j));
           }
         }
 
@@ -1054,9 +1068,9 @@ int ObProxyExprSub::calc(const ObProxyExprCtx &ctx,
               }
             }
           } else {
-            if (OB_FAIL(get_int_obj(param_result.at(0), obj1))) {
+            if (OB_FAIL(get_int_obj(param_result.at(0), obj1, *ctx.allocator_))) {
               LOG_WARN("get int obj failed", K(ret));
-            } else if (OB_FAIL(get_int_obj(param_result.at(1), obj2))) {
+            } else if (OB_FAIL(get_int_obj(param_result.at(1), obj2, *ctx.allocator_))) {
               LOG_WARN("get int obj failed", K(ret));
             } else {
               int64_t num1 = obj1.get_int();
@@ -1074,7 +1088,7 @@ int ObProxyExprSub::calc(const ObProxyExprCtx &ctx,
             LOG_WARN("result obj array push back failed", K(ret));
           }
         }
-      } while (++i < cnt);
+      } while (OB_SUCC(ret) && ++i < cnt);
     }
   }
   ObProxyExpr::print_proxy_expr(this);
@@ -1115,7 +1129,7 @@ int ObProxyExprMul::calc(const ObProxyExprCtx &ctx,
             tmp_obj = param_result_array.at(j).at(i);
           }
           if (OB_FAIL(param_result.push_back(tmp_obj))) {
-            LOG_WARN("push back obj faile", K(ret), K(i), K(j));
+            LOG_WARN("push back obj failed", K(ret), K(i), K(j));
           }
         }
 
@@ -1158,9 +1172,9 @@ int ObProxyExprMul::calc(const ObProxyExprCtx &ctx,
               }
             }
           } else {
-            if (OB_FAIL(get_int_obj(param_result.at(0), obj1))) {
+            if (OB_FAIL(get_int_obj(param_result.at(0), obj1, *ctx.allocator_))) {
               LOG_WARN("get int obj failed", K(ret));
-            } else if (OB_FAIL(get_int_obj(param_result.at(1), obj2))) {
+            } else if (OB_FAIL(get_int_obj(param_result.at(1), obj2, *ctx.allocator_))) {
               LOG_WARN("get int obj failed", K(ret));
             } else {
               int64_t num1 = obj1.get_int();
@@ -1178,7 +1192,7 @@ int ObProxyExprMul::calc(const ObProxyExprCtx &ctx,
             LOG_WARN("result obj array push back failed", K(ret));
           }
         }
-      } while (++i < cnt);
+      } while (OB_SUCC(ret) && ++i < cnt);
     }
   }
   ObProxyExpr::print_proxy_expr(this);
@@ -1215,7 +1229,7 @@ int ObProxyExprTestLoad::calc(const ObProxyExprCtx &ctx,
             tmp_obj = param_result_array.at(j).at(i);
           }
           if (OB_FAIL(param_result.push_back(tmp_obj))) {
-            LOG_WARN("push back obj faile", K(ret), K(i), K(j));
+            LOG_WARN("push back obj failed", K(ret), K(i), K(j));
           }
         }
 
@@ -1236,7 +1250,7 @@ int ObProxyExprTestLoad::calc(const ObProxyExprCtx &ctx,
             }
           }
         }
-      } while (++i < cnt);
+      } while (OB_SUCC(ret) && ++i < cnt);
     }
   }
   ObProxyExpr::print_proxy_expr(this);
@@ -1273,7 +1287,7 @@ int ObProxyExprSplit::calc(const ObProxyExprCtx &ctx,
             tmp_obj = param_result_array.at(j).at(i);
           }
           if (OB_FAIL(param_result.push_back(tmp_obj))) {
-            LOG_WARN("push back obj faile", K(ret), K(i), K(j));
+            LOG_WARN("push back obj failed", K(ret), K(i), K(j));
           }
         }
 
@@ -1303,7 +1317,7 @@ int ObProxyExprSplit::calc(const ObProxyExprCtx &ctx,
 
           if (OB_SUCC(ret)) {
             ObObj obj;
-            if (OB_FAIL(get_int_obj(param_result.at(2), obj))) {
+            if (OB_FAIL(get_int_obj(param_result.at(2), obj, *ctx.allocator_))) {
               LOG_WARN("get int obj failed", K(ret));
             } else if (OB_FAIL(obj.get_int(index))) {
               LOG_WARN("get int failed", K(ret));
@@ -1374,7 +1388,7 @@ int ObProxyExprSplit::calc(const ObProxyExprCtx &ctx,
             }
           }
         }
-      } while (++i < cnt);
+      } while (OB_SUCC(ret) && ++i < cnt);
     }
   }
   ObProxyExpr::print_proxy_expr(this);
@@ -1404,7 +1418,7 @@ int ObProxyExprAvg::calc(const ObProxyExprCtx &ctx, const ObProxyExprCalcItem &c
         if (ObDoubleTC == obj1.get_type_class() || ObDoubleTC == obj2.get_type_class()) {
           if (OB_FAIL((get_obj_for_calc<ObDoubleTC, ObDoubleType>(ctx.allocator_, obj1, obj2)))) {
             LOG_WARN("get double obj failed", K(obj1), K(obj2), K(ret));
-          } else if (fabs(obj2.get_double()) == 0.0) {
+          } else if (fabs(obj2.get_double()) < DBL_EPSILON) {
             result_obj.set_null();
           } else {
             double obj1_d = obj1.get_double();
@@ -1414,6 +1428,8 @@ int ObProxyExprAvg::calc(const ObProxyExprCtx &ctx, const ObProxyExprCalcItem &c
         } else if (ObFloatTC == obj1.get_type_class() || ObFloatTC == obj2.get_type_class()) {
           if (OB_FAIL((get_obj_for_calc<ObFloatTC, ObFloatType>(ctx.allocator_, obj1, obj2)))) {
             LOG_WARN("get float obj failed", K(obj1), K(obj2), K(ret));
+          } else if (fabs(obj2.get_float() < FLT_EPSILON)) {
+            result_obj.set_null();
           } else {
             float obj1_f = obj1.get_float();
             float obj2_f = obj2.get_float();
@@ -1440,9 +1456,9 @@ int ObProxyExprAvg::calc(const ObProxyExprCtx &ctx, const ObProxyExprCalcItem &c
             }
           }
         } else {
-          if (OB_FAIL(get_int_obj(param_result.at(0), obj1))) {
+          if (OB_FAIL(get_int_obj(param_result.at(0), obj1, *ctx.allocator_))) {
             LOG_WARN("get int obj failed", K(ret));
-          } else if (OB_FAIL(get_int_obj(param_result.at(1), obj2))) {
+          } else if (OB_FAIL(get_int_obj(param_result.at(1), obj2, *ctx.allocator_))) {
             LOG_WARN("get int obj failed", K(ret));
           } else {
             int64_t num1 = obj1.get_int();
@@ -1471,6 +1487,383 @@ int ObProxyExprAvg::calc(const ObProxyExprCtx &ctx, const ObProxyExprCalcItem &c
   return ret;
 }
 
+/*
+ * for to_date and to_timestamp, only support at least one param, at most two params 
+ */
+int ObProxyExprToTimeHandler::calc(const ObProxyExprCtx &ctx,
+                                   const ObProxyExprCalcItem &calc_item,
+                                   common::ObIArray<common::ObObj> &result_obj_array)
+{
+  int ret = OB_SUCCESS;
+  common::ObSEArray<common::ObSEArray<common::ObObj, 4>, 4> param_result_array;
+  int cnt = 0;
+  int64_t len = result_obj_array.count();
+
+  if (OB_FAIL(ObProxyExpr::calc(ctx, calc_item, result_obj_array))) {
+    LOG_WARN("calc expr failed", K(ret), K(param_array_.count()));
+  } else if (len == result_obj_array.count()) {
+    if (OB_UNLIKELY(param_array_.count() < 1)) {
+      ret = OB_EXPR_CALC_ERROR;
+      LOG_WARN("to_date should have at least one param", K(ret));
+    } else if (OB_FAIL(calc_param_expr(ctx, calc_item, param_result_array, cnt))) {
+      LOG_WARN("calc param expr failed", K(ret));
+    } else {
+      int i = 0;
+      do {
+        common::ObSEArray<common::ObObj, 4> param_result;
+        for (int64_t j = 0; OB_SUCC(ret) && j < param_result_array.count(); j++) {
+          ObObj tmp_obj;
+          if (param_result_array.at(j).count() == 1) {
+            tmp_obj = param_result_array.at(j).at(0);
+          } else {
+            tmp_obj = param_result_array.at(j).at(i);
+          }
+          if (OB_FAIL(param_result.push_back(tmp_obj))) {
+            LOG_WARN("push back obj failed", K(ret), K(i), K(j));
+          }
+        }
+
+        ObObjTypeClass type = param_result.at(0).get_type_class();
+        if (OB_SUCC(ret) && type != ObStringTC && type != ObIntTC && type != ObNumberTC) {
+          ret = OB_EXPR_CALC_ERROR;
+          LOG_WARN("unexpected the first param type of to_date", K(type));
+        }
+
+        ObTimeZoneInfo tz_info;
+        ObDataTypeCastParams dtc_params;
+        if (OB_SUCC(ret)) {
+          ObObj second_obj;
+          ObString nls_format;
+
+          if (2 == param_result.count()) {
+            if(OB_FAIL(get_varchar_obj(param_result.at(1), second_obj, *ctx.allocator_))){
+              LOG_WARN("get varchar obj failed", K(ret));
+            } else if (OB_FAIL(second_obj.get_varchar(nls_format))) {
+              LOG_WARN("get varchar failded", K(ret));
+            } else {
+              if (!nls_format.empty()) {
+                dtc_params.tz_info_ = &tz_info;
+                dtc_params.set_nls_format_by_type(target_type_, nls_format);
+              } else {
+                dtc_params.tz_info_ = &tz_info;
+                if (OB_FAIL(proxy::ObExprCalcTool::build_dtc_params(
+                    ctx.client_session_info_, target_type_, dtc_params))) {
+                  LOG_WARN("fail to build dtc params", K(ret), K(target_type_));
+                }
+              }
+            }
+          }
+        }
+
+        ObCollationType collation = ObCharset::get_default_collation(ObCharset::get_default_charset());
+        ObCastCtx cast_ctx(ctx.allocator_, &dtc_params, CM_NULL_ON_WARN, collation);
+        param_result.at(0).set_collation_type(collation);
+        if (OB_SUCC(ret) && OB_FAIL(ObObjCasterV2::to_type(target_type_, collation, cast_ctx,
+                                                           param_result.at(0), param_result.at(0)))) {
+          LOG_WARN("fail to cast obj", K(ret), K(target_type_), K(collation));
+        }
+        if (OB_SUCC(ret) && OB_FAIL(result_obj_array.push_back(param_result.at(0)))) {
+          LOG_WARN("result obj array push back failed", K(ret));
+        }
+      } while (OB_SUCC(ret) && ++i < cnt);
+    }
+  }
+  ObProxyExpr::print_proxy_expr(this);
+  return ret;
+}
+
+int ObProxyExprNvl::calc(const ObProxyExprCtx &ctx,
+                         const ObProxyExprCalcItem &calc_item,
+                         common::ObIArray<common::ObObj> &result_obj_array)
+{
+  int ret = OB_SUCCESS;
+  common::ObSEArray<common::ObSEArray<common::ObObj, 4>, 4> param_result_array;
+  int cnt = 0;
+  int64_t len = result_obj_array.count();
+
+  if (OB_FAIL(ObProxyExpr::calc(ctx, calc_item, result_obj_array))) {
+    LOG_WARN("calc expr failed", K(ret), K(param_array_.count()));
+  } else if (len == result_obj_array.count()) {
+    if (OB_UNLIKELY(param_array_.count() != 2)) {
+      ret = OB_EXPR_CALC_ERROR;
+      LOG_WARN("nvl should have two param", K(ret));
+    } else if (OB_FAIL(calc_param_expr(ctx, calc_item, param_result_array, cnt))) {
+      LOG_WARN("calc param expr failed", K(ret));
+    } else {
+      int i = 0;
+      do {
+        common::ObSEArray<common::ObObj, 4> param_result;
+        for (int64_t j = 0; OB_SUCC(ret) && j < param_result_array.count(); j++) {
+          ObObj tmp_obj;
+          if (param_result_array.at(j).count() == 1) {
+            tmp_obj = param_result_array.at(j).at(0);
+          } else {
+            tmp_obj = param_result_array.at(j).at(i);
+          }
+          if (OB_FAIL(param_result.push_back(tmp_obj))) {
+            LOG_WARN("push back obj failed", K(ret), K(i), K(j));
+          }
+        }
+
+        ObObj result_obj = param_result.at(0);
+        ObObj second_obj = param_result.at(1);
+        if (OB_SUCC(ret)) {
+          // null expr or empty varchar treated as null
+          if (result_obj.is_null()) {
+            result_obj = second_obj;
+          } else if (result_obj.is_string_type()) {
+            ObString str;
+            if (OB_FAIL(result_obj.get_string(str))) {
+              LOG_WARN("get varchar of param failed", K(ret));
+            } else if (str.empty()) {
+              result_obj = second_obj;
+            }
+          }
+        }
+
+        if (OB_SUCC(ret) && OB_FAIL(result_obj_array.push_back(result_obj))) {
+          LOG_WARN("result obj array push back failed", K(ret));
+        }
+      } while (OB_SUCC(ret) && ++i < cnt);
+    }
+  }
+  ObProxyExpr::print_proxy_expr(this);
+  return ret;
+}
+
+/*
+ * only support datetime format.
+ */
+int ObProxyExprToChar::calc(const ObProxyExprCtx &ctx,
+                            const ObProxyExprCalcItem &calc_item,
+                            common::ObIArray<common::ObObj> &result_obj_array)
+{
+  int ret = OB_SUCCESS;
+  common::ObSEArray<common::ObSEArray<common::ObObj, 4>, 4> param_result_array;
+  int cnt = 0;
+  int64_t len = result_obj_array.count();
+
+  if (OB_FAIL(ObProxyExpr::calc(ctx, calc_item, result_obj_array))) {
+    LOG_WARN("calc expr failed", K(ret), K(param_array_.count()));
+  } else if (len == result_obj_array.count()) {
+    if (OB_UNLIKELY(param_array_.count() < 1) || OB_UNLIKELY(param_array_.count() > 2)) {
+      ret = OB_EXPR_CALC_ERROR;
+      LOG_WARN("to_char should have one or two param", K(ret), K(param_array_.count()));
+    } else if (OB_FAIL(calc_param_expr(ctx, calc_item, param_result_array, cnt))) {
+      LOG_WARN("calc param expr failed", K(ret));
+    } else {
+      int i = 0;
+      do {
+        common::ObSEArray<common::ObObj, 4> param_result;
+        for (int64_t j = 0; OB_SUCC(ret) && j < param_result_array.count(); j++) {
+          ObObj tmp_obj;
+          if (param_result_array.at(j).count() == 1) {
+            tmp_obj = param_result_array.at(j).at(0);
+          } else {
+            tmp_obj = param_result_array.at(j).at(i);
+          }
+          if (OB_FAIL(param_result.push_back(tmp_obj))) {
+            LOG_WARN("push back obj failed", K(ret), K(i), K(j));
+          }
+        }
+        if (OB_SUCC(ret)) {
+          ObObjType target_type = ObVarcharType;
+          ObObj result_obj = param_result.at(0);
+          ObObj second_obj;
+          ObString nls_format;
+          ObTimeZoneInfo tz_info;
+          ObDataTypeCastParams dtc_params = ObDataTypeCastParams();
+
+          // to_char(datetime) return NULL when nls_format parmas is '' 
+          bool is_empty_format = false;
+
+          ObCollationType collation = ObCharset::get_default_collation(ObCharset::get_default_charset());
+          dtc_params.tz_info_ = &tz_info;
+
+          if (ObDateTimeTC != param_result.at(0).get_type_class() && ObOTimestampTC != param_result.at(0).get_type_class()) {
+            ret = OB_EXPR_CALC_ERROR;
+            LOG_WARN("unsupported first param type of to_char", K(param_result.at(0).get_type_class()));
+          } else if (2 == param_result.count()) {
+            if (OB_FAIL(get_varchar_obj(param_result.at(1), second_obj, *ctx.allocator_))) {
+              LOG_WARN("get varchar obj failed", K(ret));
+            } else if (OB_FAIL(second_obj.get_varchar(nls_format))) {
+              LOG_WARN("get varchar failed", K(ret));
+            } else {
+              if (!nls_format.empty()) {
+                // ObObjCasterV2 only support ObOTimestampTC to format by nls_format, here convert ObDateTimeTC to ObTimestampTZType
+                dtc_params.set_nls_format_by_type(ObTimestampTZType, nls_format);
+                ObCastCtx cast_ctx_otimestamp(ctx.allocator_, &dtc_params, CM_NULL_ON_WARN, collation);
+                if (OB_FAIL(ObObjCasterV2::to_type(ObTimestampTZType, collation, cast_ctx_otimestamp,
+                                                   result_obj, result_obj))) {
+                  LOG_WARN("cast DateTime to ObTimestampTZTType failed", K(ret));
+                }
+              } else {
+                is_empty_format = true;
+              }
+            }
+          }
+
+          if (OB_SUCC(ret)) {
+            ObCastCtx cast_ctx(ctx.allocator_, &dtc_params, CM_NULL_ON_WARN, collation);
+            if (param_array_.count() == 1) {
+              // do nothing
+            } else if (is_empty_format) {
+              result_obj.set_null();
+            } else if (OB_FAIL(ObObjCasterV2::to_type(target_type, collation, cast_ctx, result_obj, result_obj))) {
+              LOG_WARN("fail to cast obj to timestamp", K(ret), K(result_obj), K(target_type), K(collation));
+            }
+          }
+
+          if (OB_SUCC(ret) && OB_FAIL(result_obj_array.push_back(result_obj))) {
+            LOG_WARN("result obj array push back failed", K(ret));
+          }
+        }
+      } while (OB_SUCC(ret) && ++i < cnt);
+    }
+  }
+  ObProxyExpr::print_proxy_expr(this);
+  return ret;
+}
+
+int ObProxyExprSysdate::calc(const ObProxyExprCtx &ctx,
+                             const ObProxyExprCalcItem &calc_item,
+                             common::ObIArray<common::ObObj> &result_obj_array)
+{
+  int ret = OB_SUCCESS;
+  int cnt = 0;
+  int64_t len = result_obj_array.count();
+
+  if (OB_FAIL(ObProxyExpr::calc(ctx, calc_item, result_obj_array))) {
+    LOG_WARN("calc expr failed", K(ret));
+  } else if (len == result_obj_array.count()) {
+    if (OB_UNLIKELY(param_array_.count() > 0)) {
+      ret = OB_EXPR_CALC_ERROR;
+      LOG_WARN("sysdate should have no param", K(ret));
+    } else {
+      int i = 0;
+      do {
+        common::ObSEArray<common::ObObj, 4> param_result;
+        if (OB_SUCC(ret)) {
+          ObObjType target_type = ObDateTimeType;
+
+          int64 now = common::ObTimeUtility::current_time();
+          // calc timezone offset to correct the time zone info
+          int64 gm_time_buf = (int64)((time_t)now - mktime(gmtime((time_t *)&now))) * 1000000;
+
+          ObObj result_obj;
+          result_obj.set_timestamp(now + gm_time_buf);
+          ObTimeZoneInfo tz_info;
+          ObCollationType collation = ObCharset::get_default_collation(ObCharset::get_default_charset());
+          if (OB_SUCC(ret)) {
+            ObCastCtx cast_ctx(ctx.allocator_, NULL, CM_NULL_ON_WARN, collation);
+            if (OB_FAIL(ObObjCasterV2::to_type(target_type, collation, cast_ctx, result_obj, result_obj))) {
+              LOG_WARN("fail to cast obj to timestamp", K(ret), K(result_obj), K(target_type), K(collation));
+            } else if (OB_FAIL(result_obj_array.push_back(result_obj))) {
+              LOG_WARN("result obj array push back failed", K(ret));
+            }
+          }
+        }
+      } while (OB_SUCC(ret) && ++i < cnt);
+    }
+  }
+  ObProxyExpr::print_proxy_expr(this);
+  return ret;
+}
+
+/*
+ * refer to the implementation of oracle
+ * mod calculate: MOD(n1, n2) = n1 - n2 * FLOOR(n1/n2)
+ *                when ( n2 = 0 ), return n1
+ */
+int ObProxyExprMod::calc(const ObProxyExprCtx &ctx,
+                         const ObProxyExprCalcItem &calc_item,
+                         common::ObIArray<common::ObObj> &result_obj_array)
+{
+  int ret = OB_SUCCESS;
+  common::ObSEArray<common::ObSEArray<common::ObObj, 4>, 4> param_result_array;
+  int cnt = 0;
+  int64_t len = result_obj_array.count();
+
+  if (-1 != index_ &&
+      ObProxyExprCalcItem::FROM_OBJ_ARRAY == calc_item.source_ && !has_agg_) {
+    if (OB_FAIL(ObProxyExpr::calc(ctx, calc_item, result_obj_array))) {
+      LOG_WARN("calc expr failed", K(ret));
+    }
+  }
+
+  if (OB_SUCC(ret) && len == result_obj_array.count()) {
+    if (2 != param_array_.count()) {
+      ret = OB_EXPR_CALC_ERROR;
+      LOG_WARN("mod should have two param", K(ret), K(param_array_.count()));
+    } else if (OB_FAIL(
+        calc_param_expr(ctx, calc_item, param_result_array, cnt))) {
+      LOG_WARN("calc param result failed", K(ret));
+    } else {
+      int i = 0;
+      do {
+        common::ObSEArray<common::ObObj, 4> param_result;
+        for (int64_t j = 0; OB_SUCC(ret) && j < param_result_array.count(); j++) {
+          ObObj tmp_obj;
+          if (param_result_array.at(j).count() == 1) {
+            tmp_obj = param_result_array.at(j).at(0);
+          } else {
+            tmp_obj = param_result_array.at(j).at(i);
+          }
+          if (OB_FAIL(param_result.push_back(tmp_obj))) {
+            LOG_WARN("push back obj failed", K(ret), K(i), K(j));
+          }
+        }
+
+        if (OB_SUCC(ret)) {
+          ObObj obj1 = param_result.at(0);
+          ObObj obj2 = param_result.at(1);
+          ObObj result_obj;
+
+          if (ObDoubleTC == obj1.get_type_class() ||
+              ObDoubleTC == obj2.get_type_class()) {
+            if (OB_FAIL((get_obj_for_calc<ObDoubleTC, ObDoubleType>(ctx.allocator_, obj1, obj2)))) {
+              LOG_WARN("get double obj failed", K(obj1), K(obj2), K(ret));
+            } else if (fabs(obj2.get_double()) < DBL_EPSILON) {
+              result_obj.set_double(obj1.get_double());
+            } else {
+              double obj1_d = obj1.get_double();
+              double obj2_d = obj2.get_double();
+              result_obj.set_double(obj1_d - obj2_d * floor(obj1_d / obj1_d));
+            }
+          } else if (ObFloatTC == obj1.get_type_class() || ObFloatTC == obj2.get_type_class()) {
+            if (OB_FAIL((get_obj_for_calc<ObFloatTC, ObFloatType>(ctx.allocator_, obj1, obj2)))) {
+              LOG_WARN("get float obj failed", K(obj1), K(obj2), K(ret));
+            } else if (fabs(obj2.get_float()) < FLT_EPSILON) {
+              result_obj.set_float(obj1.get_float());
+            } else {
+              float obj1_f = obj1.get_float();
+              float obj2_f = obj2.get_float();
+              result_obj.set_float(obj1_f - obj2_f * floor(obj1_f / obj1_f));
+            }
+          } else {
+            number::ObNumber res_nmb;
+            if (OB_FAIL((get_obj_for_calc<ObNumberTC, ObNumberType>(ctx.allocator_, obj1, obj2)))) {
+              LOG_WARN("get number obj failed", K(ret), K(obj1), K(obj2));
+            } else if (obj2.get_number().is_zero()) {
+              result_obj.set_number(obj1.get_number());
+            } else if (OB_FAIL(obj1.get_number().rem(obj2.get_number(), res_nmb, *ctx.allocator_))) {
+              LOG_WARN("failed to mod numbers", K(ret), K(obj1), K(obj2));
+            } else if (OB_SUCC(ret)) {
+              result_obj.set_number(res_nmb);
+            }
+          }
+
+          if (OB_SUCC(ret) && OB_FAIL(result_obj_array.push_back(result_obj))) {
+            LOG_WARN("result obj array push back failed", K(ret));
+          }
+        }
+      } while (OB_SUCC(ret) && ++i < cnt);
+    }
+  }
+  ObProxyExpr::print_proxy_expr(this);
+  return ret;
+}
+
 } // end opsql
 } // end obproxy
 } // end oceanbase
diff --git a/src/obproxy/opsql/func_expr_resolver/proxy_expr/ob_proxy_expr.h b/src/obproxy/opsql/func_expr_resolver/proxy_expr/ob_proxy_expr.h
index cda8fca6..e7ff0800 100644
--- a/src/obproxy/opsql/func_expr_resolver/proxy_expr/ob_proxy_expr.h
+++ b/src/obproxy/opsql/func_expr_resolver/proxy_expr/ob_proxy_expr.h
@@ -13,10 +13,11 @@
 #ifndef OB_FUNC_EXPR_PROXY_EXPR_H
 #define OB_FUNC_EXPR_PROXY_EXPR_H
 
-#include "opsql/func_expr_resolver/proxy_expr/ob_proxy_expr_type.h"
 #include "dbconfig/ob_proxy_db_config_info.h"
 #include "lib/allocator/ob_mod_define.h"
 #include "lib/ob_define.h"
+#include "opsql/func_expr_resolver/proxy_expr/ob_proxy_expr_type.h"
+#include "proxy/mysqllib/ob_proxy_session_info.h"
 
 namespace oceanbase
 {
@@ -30,15 +31,26 @@ class ObProxyExprCtx
 {
 public:
   explicit ObProxyExprCtx(const int64_t physical_size, dbconfig::ObTestLoadType type,
-                          bool is_elastic_index, common::ObIAllocator* allocator)
+                          bool is_elastic_index, common::ObIAllocator *allocator)
       : sharding_physical_size_(physical_size), test_load_type_(type), is_elastic_index_(is_elastic_index),
-        allocator_(allocator), scale_(-1) {}
+        allocator_(allocator), scale_(-1), is_oracle_mode(false) {}
+  explicit ObProxyExprCtx(const int64_t physical_size,
+                          dbconfig::ObTestLoadType type, bool is_elastic_index,
+                          common::ObIAllocator *allocator,
+                          proxy::ObClientSessionInfo *client_session_info)
+      : sharding_physical_size_(physical_size), test_load_type_(type),
+        is_elastic_index_(is_elastic_index), allocator_(allocator), scale_(-1),
+        client_session_info_(client_session_info), is_oracle_mode(false) {}
   ~ObProxyExprCtx() {}
 
   void set_sharding_physical_size(const int64_t physical_size) { sharding_physical_size_ = physical_size; }
   void set_test_load_type(const dbconfig::ObTestLoadType type) { test_load_type_ = type; }
   void set_is_elastic_index(const bool is_elastic_index) { is_elastic_index_ = is_elastic_index; }
   void set_scale(const int64_t scale) { scale_ = scale; };
+  void set_client_session_info(proxy::ObClientSessionInfo *client_session_info)
+  {
+    client_session_info_ = client_session_info;
+  }
 
 public:
   int64_t sharding_physical_size_;
@@ -46,6 +58,8 @@ class ObProxyExprCtx
   bool is_elastic_index_;
   common::ObIAllocator *allocator_;
   int64_t scale_;
+  proxy::ObClientSessionInfo *client_session_info_;
+  bool is_oracle_mode;
 };
 
 struct ObProxyExprCalcItem {
@@ -255,6 +269,8 @@ class ObProxyFuncExpr : public ObProxyExpr
   virtual ~ObProxyFuncExpr();
 
   int add_param_expr(ObProxyExpr* expr) { return param_array_.push_back(expr); }
+  int64_t get_param_conut() { return param_array_.count(); }
+
   int calc_param_expr(const ObProxyExprCtx &ctx, const ObProxyExprCalcItem &calc_item,
                       common::ObSEArray<common::ObSEArray<common::ObObj, 4>, 4> &param_result,
                       int &cnt);
@@ -263,7 +279,7 @@ class ObProxyFuncExpr : public ObProxyExpr
   void set_param_array(common::ObSEArray<ObProxyExpr*, 4>& param_array) { param_array_ = param_array; }
 
 public:
-  static int get_int_obj(const common::ObObj &src, common::ObObj &dst);
+  static int get_int_obj(const common::ObObj &src, common::ObObj &dst, common::ObIAllocator &allocator);
   static int get_varchar_obj(const common::ObObj &src, common::ObObj &dst, common::ObIAllocator &allocator);
   int check_varchar_empty(const common::ObObj& result);
 
@@ -415,6 +431,56 @@ class ObProxyExprSplit : public ObProxyFuncExpr
                    common::ObIArray<common::ObObj> &result_obj_array);
 };
 
+// include to_date and to_timestamp
+class ObProxyExprToTimeHandler : public ObProxyFuncExpr
+{
+public:
+  explicit ObProxyExprToTimeHandler() {}
+  explicit ObProxyExprToTimeHandler(ObObjType &target_type) : target_type_(target_type) {}
+  ~ObProxyExprToTimeHandler() {}
+  int calc(const ObProxyExprCtx &ctx, const ObProxyExprCalcItem &calc_item,
+           common::ObIArray<common::ObObj> &result_obj_array);
+  void set_target_type(ObObjType target_type) { target_type_ = target_type; }
+private:
+  ObObjType target_type_;
+};
+
+class ObProxyExprNvl : public ObProxyFuncExpr
+{
+public:
+  explicit ObProxyExprNvl() {}
+  ~ObProxyExprNvl() {}
+  int calc(const ObProxyExprCtx &ctx, const ObProxyExprCalcItem &calc_item,
+           common::ObIArray<common::ObObj> &result_obj_array);
+};
+
+class ObProxyExprToChar : public ObProxyFuncExpr
+{
+public:
+  explicit ObProxyExprToChar() {}
+  ~ObProxyExprToChar() {}
+  int calc(const ObProxyExprCtx &ctx, const ObProxyExprCalcItem &calc_item,
+           common::ObIArray<common::ObObj> &result_obj_array);
+};
+
+class ObProxyExprSysdate : public ObProxyFuncExpr
+{
+public:
+  explicit ObProxyExprSysdate() {}
+  ~ObProxyExprSysdate() {}
+  int calc(const ObProxyExprCtx &ctx, const ObProxyExprCalcItem &calc_item,
+           common::ObIArray<common::ObObj> &result_obj_array);
+};
+
+class ObProxyExprMod : public ObProxyFuncExpr
+{
+public:
+  explicit ObProxyExprMod() {}
+  ~ObProxyExprMod() {}
+  int calc(const ObProxyExprCtx &ctx, const ObProxyExprCalcItem &calc_item,
+           common::ObIArray<common::ObObj> &result_obj_array);
+};
+
 } // end opsql
 } // end obproxy
 } // end oceanbase
diff --git a/src/obproxy/opsql/func_expr_resolver/proxy_expr/ob_proxy_expr_type.h b/src/obproxy/opsql/func_expr_resolver/proxy_expr/ob_proxy_expr_type.h
index 6554cb50..115929f3 100644
--- a/src/obproxy/opsql/func_expr_resolver/proxy_expr/ob_proxy_expr_type.h
+++ b/src/obproxy/opsql/func_expr_resolver/proxy_expr/ob_proxy_expr_type.h
@@ -38,6 +38,12 @@ typedef enum ObProxyExprType
   OB_PROXY_EXPR_TYPE_FUNC_ORDER,
   OB_PROXY_EXPR_TYPE_FUNC_TESTLOAD,
   OB_PROXY_EXPR_TYPE_FUNC_SPLIT,
+  OB_PROXY_EXPR_TYPE_FUNC_TO_DATE,
+  OB_PROXY_EXPR_TYPE_FUNC_TO_TIMESTAMP,
+  OB_PROXY_EXPR_TYPE_FUNC_NVL,
+  OB_PROXY_EXPR_TYPE_FUNC_TO_CHAR,
+  OB_PROXY_EXPR_TYPE_FUNC_SYSDATE,
+  OB_PROXY_EXPR_TYPE_FUNC_MOD,
 
   OB_PROXY_EXPR_TYPE_MAX,
 }ObProxyExprType;
@@ -112,6 +118,24 @@ const char* get_expr_type_name(int expr_type)
     case OB_PROXY_EXPR_TYPE_FUNC_TESTLOAD:
       type_name = "OB_PROXY_EXPR_TYPE_FUNC_TESTLOAD";
       break;
+    case OB_PROXY_EXPR_TYPE_FUNC_TO_DATE:
+      type_name = "OB_PROXY_EXPR_TYPE_FUNC_TO_DATE";
+      break;
+    case OB_PROXY_EXPR_TYPE_FUNC_TO_TIMESTAMP:
+      type_name = "OB_PROXY_EXPR_TYPE_FUNC_TO_TIMESTAMP";
+      break;
+    case OB_PROXY_EXPR_TYPE_FUNC_NVL:
+      type_name = "OB_PROXY_EXPR_TYPE_FUNC_NVL";
+      break;
+    case OB_PROXY_EXPR_TYPE_FUNC_TO_CHAR:
+      type_name = "OB_PROXY_EXPR_TYPE_FUNC_TO_CHAR";
+      break;
+    case OB_PROXY_EXPR_TYPE_FUNC_SYSDATE:
+      type_name = "OB_PROXY_EXPR_TYPE_FUNC_SYSDATE";
+      break;
+    case OB_PROXY_EXPR_TYPE_FUNC_MOD:
+      type_name = "OB_PROXY_EXPR_TYPE_FUNC_MOD";
+      break;
     case OB_PROXY_EXPR_TYPE_MAX:
       type_name = "OB_PROXY_EXPR_TYPE_MAX";
       break;
diff --git a/src/obproxy/opsql/parser/ob_proxy_parse_result.cpp b/src/obproxy/opsql/parser/ob_proxy_parse_result.cpp
index 7c375f3a..97046f70 100644
--- a/src/obproxy/opsql/parser/ob_proxy_parse_result.cpp
+++ b/src/obproxy/opsql/parser/ob_proxy_parse_result.cpp
@@ -116,9 +116,6 @@ const char* get_print_stmt_name(const ObProxyBasicStmtType type)
     case OBPROXY_T_SELECT_TX_RO:
       str_ret = "SELECT_TX_RO";
       break;
-    case OBPROXY_T_SET_AC_0:
-      str_ret = "SET";
-      break;
     case OBPROXY_T_PING_PROXY:
       str_ret = "PING";
       break;
@@ -191,6 +188,25 @@ const char* get_print_stmt_name(const ObProxyBasicStmtType type)
       str_ret = "DESC";
       break;
 
+    case OBPROXY_T_SHOW_MASTER_STATUS:
+      str_ret = "SHOW_MASTER_STATUS";
+      break;
+    case OBPROXY_T_SHOW_BINLOG_EVENTS:
+      str_ret = "SHOW_BINLOG_EVENTS";
+      break;
+    case OBPROXY_T_PURGE_BINARY_LOGS:
+      str_ret = "PURGE_BINARY_LOGS";
+      break;
+    case OBPROXY_T_RESET_MASTER:
+      str_ret = "RESET_MASTER";
+      break;
+    case OBPROXY_T_SHOW_BINLOG_SERVER_FOR_TENANT:
+      str_ret = "SHOW_BINLOG_SERVER_FOR_TENANT";
+      break;
+    case OBPROXY_T_SHOW_BINARY_LOGS:
+      str_ret = "SHOW_BINARY_LOGS";
+      break;
+
     case OBPROXY_T_INVALID:
     case OBPROXY_T_MAX:
     case OBPROXY_T_OTHERS:
@@ -348,9 +364,6 @@ const char* get_obproxy_stmt_name(const ObProxyBasicStmtType type)
     case OBPROXY_T_SELECT_PROXY_VERSION:
       str_ret = "OBPROXY_T_SELECT_PROXY_VERSION";
       break;
-    case OBPROXY_T_SET_AC_0:
-      str_ret = "OBPROXY_T_SET_AC_0";
-      break;
     case OBPROXY_T_SHOW_WARNINGS:
       str_ret = "OBPROXY_T_SHOW_WARNINGS";
       break;
@@ -411,6 +424,12 @@ const char* get_obproxy_stmt_name(const ObProxyBasicStmtType type)
     case OBPROXY_T_TEXT_PS_DROP:
       str_ret = "OBPROXY_T_TEXT_PS_DROP";
       break;
+    case OBPROXY_T_LOGIN:
+      str_ret = "OBPROXY_T_LOGIN";
+      break;
+    case OBPROXY_T_DESC:
+      str_ret = "OBPROXY_T_DESC";
+      break;
     case OBPROXY_T_MAX:
       str_ret = "OBPROXY_T_MAX";
       break;
@@ -506,6 +525,9 @@ const char* get_obproxy_sub_stmt_name(const ObProxyBasicStmtSubType type)
     case OBPROXY_T_SUB_ROUTE_ROUTINE:
       str_ret = "OBPROXY_T_SUB_ROUTE_ROUTINE";
       break;
+    case OBPROXY_T_SUB_SHOW_ELASTIC_ID:
+      str_ret = "OBPROXY_T_SUB_SHOW_ELASTIC_ID";
+      break;
     case OBPROXY_T_SUB_SHOW_TOPOLOGY:
       str_ret = "OBPROXY_T_SUB_SHOW_TOPOLOGY";
       break;
diff --git a/src/obproxy/opsql/parser/ob_proxy_parse_result.h b/src/obproxy/opsql/parser/ob_proxy_parse_result.h
index 145532c2..04574905 100644
--- a/src/obproxy/opsql/parser/ob_proxy_parse_result.h
+++ b/src/obproxy/opsql/parser/ob_proxy_parse_result.h
@@ -87,7 +87,6 @@ typedef enum ObProxyBasicStmtType
   // internal request
   OBPROXY_T_BEGIN,
   OBPROXY_T_SELECT_TX_RO,
-  OBPROXY_T_SET_AC_0,
   OBPROXY_T_PING_PROXY,
   OBPROXY_T_SELECT_ROUTE_ADDR,
   OBPROXY_T_SET_ROUTE_ADDR,
@@ -126,6 +125,14 @@ typedef enum ObProxyBasicStmtType
   // only for print obproxy_stat log
   OBPROXY_T_LOGIN,
 
+  // binglog related
+  OBPROXY_T_SHOW_MASTER_STATUS,
+  OBPROXY_T_SHOW_BINARY_LOGS,
+  OBPROXY_T_SHOW_BINLOG_EVENTS,
+  OBPROXY_T_PURGE_BINARY_LOGS,
+  OBPROXY_T_RESET_MASTER,
+  OBPROXY_T_SHOW_BINLOG_SERVER_FOR_TENANT,
+
   OBPROXY_T_MAX
 } ObProxyBasicStmtType;
 
@@ -196,6 +203,7 @@ typedef enum ObProxyBasicStmtSubType
   OBPROXY_T_SUB_SHOW_FULL_TABLES,
   OBPROXY_T_SUB_SHOW_TABLE_STATUS,
   OBPROXY_T_SUB_SHOW_CREATE_TABLE,
+  OBPROXY_T_SUB_SHOW_ELASTIC_ID,
   OBPROXY_T_SUB_SHOW_TOPOLOGY,
   OBPROXY_T_SUB_SHOW_DB_VERSION,
   OBPROXY_T_SUB_SHOW_COLUMNS,
@@ -332,7 +340,7 @@ typedef struct _ObDbMeshRouteInfo
 
 typedef enum _ObProxySetValueType
 {
-  SET_VALUE_TYPE_ONE = 0,
+  SET_VALUE_TYPE_NONE = 0,
   SET_VALUE_TYPE_STR,
   SET_VALUE_TYPE_INT,
   SET_VALUE_TYPE_NUMBER,
@@ -379,6 +387,7 @@ typedef struct _ObDbpRouteInfo
   ObProxyParseString  table_name_;
   ObProxyParseString  group_idx_str_;
   bool scan_all_;
+  bool sticky_session_;
   bool has_shard_key_;
   ObDbpShardKeyInfo shard_key_infos_[OBPROXY_MAX_DBP_SHARD_KEY_NUM];
   int shard_key_count_;
@@ -426,6 +435,9 @@ typedef struct _ObProxyParseResult
   ObProxyParseString col_name_;
   ObProxyParseString trace_id_;
   ObProxyParseString rpc_id_;
+
+  // store the route server address in sql comment
+  ObProxyParseString target_db_server_;
   // read_consistency
   ObProxyReadConsistencyType read_consistency_type_;
   // db/table name
diff --git a/src/obproxy/opsql/parser/ob_proxy_parser.h b/src/obproxy/opsql/parser/ob_proxy_parser.h
index ab2436a2..27167a99 100644
--- a/src/obproxy/opsql/parser/ob_proxy_parser.h
+++ b/src/obproxy/opsql/parser/ob_proxy_parser.h
@@ -152,6 +152,7 @@ inline int ObProxyParser::obparse(const common::ObString &sql_string,
     common::ObString parse_sql_string = sql_string;
     //set ; ob parse need end with ;
     bool add_semicolon = false;
+    char origin_byte = parse_sql_string.ptr()[sql_string.length() - 2];
     if (parse_sql_string.ptr()[sql_string.length() - 3] != ';') {
       parse_sql_string.ptr()[sql_string.length() - 2] = ';';
       add_semicolon = true;
@@ -169,7 +170,7 @@ inline int ObProxyParser::obparse(const common::ObString &sql_string,
       }
     }
     if (add_semicolon) {
-      parse_sql_string.ptr()[sql_string.length() - 2] = '\0';
+      parse_sql_string.ptr()[sql_string.length() - 2] = origin_byte;
     }
   }
   return ret;
diff --git a/src/obproxy/opsql/parser/ob_proxy_parser.l b/src/obproxy/opsql/parser/ob_proxy_parser.l
index e01bb139..ef1c29f7 100644
--- a/src/obproxy/opsql/parser/ob_proxy_parser.l
+++ b/src/obproxy/opsql/parser/ob_proxy_parser.l
@@ -269,6 +269,7 @@ do {\
 %x                      prepare
 %x                      insert_all_expr
 %x                      set_expr
+%x                      show_elastic_id 
 %x                      show_topology
 %x                      show_tables
 %x                      proxy_icmd_state
@@ -281,8 +282,10 @@ multi_byte_right_parenthesis  [\uff09]
 multi_byte_connect_char       /*According to connection character to set by gen_parse.sh*/
 space                   [ \t\n\r\f]
 identifer               (([A-Za-z0-9$_#]|{multi_byte_connect_char})*)
-int_num                 [\-\+]?[0-9]+
-number                  ([0-9]+E[-+]?[0-9]+)|([0-9]+"."[0-9]*E[-+]?[0-9]+)|("."[0-9]+E[-+]?[0-9]+)|([0-9]+"."[0-9]*)|("."[0-9]+)
+
+/* limit the length of int_num from 1 to 17 in case of int64_t out of bound, 17 -> [ ( length of 2^64 ) - 2 ]*/
+int_num                 [\-\+]?[0-9]{1,17}
+number                  ([\-]?[0-9]+E[-+]?[0-9]+)|([\-]?[0-9]+"."[0-9]*E[-+]?[0-9]+)|([\-]?"."[0-9]+E[-+]?[0-9]+)|([\-]?[0-9]+"."[0-9]*)|([\-]?"."[0-9]+)|([\-\+]?[0-9]{18,})
 comment_identifer       [\-\+]?{identifer}
 odp_comment_identifer   ([\-\+]?[A-Za-z0-9$_\-]*)
 
@@ -301,7 +304,6 @@ c_cmt_end               \*+\/
 
 tx_read_only            (@@session{space}*\.{space}*tx_read_only|@@tx_read_only)
 autocommit              (@@session{space}*\.{space}*autocommit|@@autocommit|autocommit)
-autocommit_0            ({autocommit}{space}*={space}*0)
 set_names               (set{space}+names{space}+)
 set_charset             (set{space}+charset{space}+|set{space}+character{space}+set{space}+)
 set_password            (set{space}+password{space}+)
@@ -357,7 +359,8 @@ show_full_tables          (show{space}+full{space}+tables)
 show_create_table         (show{space}+create{space}+table)
 show_columns              (show{space}+(full{space}+)?(columns|fields))
 show_index                (show{space}+(index|indexes|keys))
-show_topology             (show{space}+elastic_id)
+show_elastic_id           (show{space}+elastic_id)
+show_topology             (show{space}+topology)
 show_db_version           (show{space}+database_version)
 select_database           (select{space}+database({leftbracket}|{multi_byte_left_parenthesis})({rightbracket}|{multi_byte_right_parenthesis}))
 alter_proxyconfig         (alter{space}+proxyconfig)
@@ -369,6 +372,15 @@ select_proxy_version       (select{space}+proxy_version{space}*({leftbracket}|{m
 
 select_obproxy_route_addr (select{space}+@obproxy_route_addr)
 set_obproxy_route_addr    (set{space}+@obproxy_route_addr)
+
+/* binlog relate SQL */
+show_master_status (show{space}+master{space}+status)
+show_binary_logs (show{space}+binary{space}+logs)
+show_binlog_events (show{space}+binlog{space}+events)
+purge_binary_logs (purge{space}+binary{space}+logs)
+reset_master (reset{space}+master)
+show_binlog_server_for_tenant (show{space}+binlog{space}+server{space}+for{space}+tenant)
+
 %%
 
  /* basic dml stmt: */
@@ -390,7 +402,7 @@ CALL             { SET_BASIC_STMT(OBPROXY_T_CALL); return CALL; }
 DECLARE          { SET_HAS_ANONYMOUS_BLOCK(); PUSH_STATE(in_anonymous_block); }
 WHEN             { ObProxyParseResult *p = yyget_extra(yyscanner);
                    if (OB_NOTNULL(p)) {
-                     if (OBPROXY_T_INSERT == p->cur_stmt_type_) 
+                     if (OBPROXY_T_INSERT == p->cur_stmt_type_)
                        PUSH_STATE(insert_all_expr);
                    }
                    return WHEN; }
@@ -411,7 +423,7 @@ UNIQUE           { return UNIQUE; }
 USING            { return USING; }
 PREPARE          { PUSH_STATE(prepare); return PREPARE; }
 EXECUTE          { return EXECUTE; }
-DEALLOCATE       { return DEALLOCATE; }   
+DEALLOCATE       { return DEALLOCATE; }
 
 
  /* oracle ddl stmt */
@@ -445,7 +457,7 @@ ALL              { return ALL; }
 LIKE             { return LIKE; }
 PARTITION        { return PARTITION; }
 BINARY           { return BINARY; }
-GROUP_NAME       { return GROUP_NAME; }
+GROUP_NAME       { RETURN_NON_RESERVED_KEYWORD(GROUP_NAME); }
 
  /* to make bison easy, do not return these reserved keyword in non strict mode */
 IGNORE           { RETURN_IGNORED_WORD(); }
@@ -549,13 +561,15 @@ REFRESH             { RETURN_NON_RESERVED_KEYWORD(REFRESH); }
 UPGRADE             { RETURN_NON_RESERVED_KEYWORD(UPGRADE); }
 IDC                 { RETURN_NON_RESERVED_KEYWORD(IDC); }
 
-{show_topology}    { SET_BASIC_STMT(OBPROXY_T_SHOW); PUSH_STATE(show_topology); return SHOW_TOPOLOGY; }
-<show_topology>"FROM"                        { POP_STATE(); PUSH_STATE(INITIAL); return FROM; }
-<show_topology>"WHERE"                       { POP_STATE(); PUSH_STATE(INITIAL); return WHERE; }
-<show_topology><<EOF>>                       { return END_P; }
-<show_topology>{whitespace}                  { }
-<show_topology>;                             { POP_STATE(); PUSH_STATE(INITIAL); return yytext[0]; }
-<show_topology>.                             { return ERROR; }
+{show_elastic_id}    { SET_BASIC_STMT(OBPROXY_T_SHOW); PUSH_STATE(show_elastic_id ); return SHOW_ELASTIC_ID; }
+<show_elastic_id>"FROM"                        { POP_STATE(); PUSH_STATE(INITIAL); return FROM; }
+<show_elastic_id>"WHERE"                       { POP_STATE(); PUSH_STATE(INITIAL); return WHERE; }
+<show_elastic_id><<EOF>>                       { return END_P; }
+<show_elastic_id>{whitespace}                  { }
+<show_elastic_id>;                             { POP_STATE(); PUSH_STATE(INITIAL); return yytext[0]; }
+<show_elastic_id>.                             { return ERROR; }
+
+{show_topology} { SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_TOPOLOGY; }
 
 {show_db_version}  { SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_DB_VERSION; }
 {show_databases}    { SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_DATABASES; }
@@ -647,7 +661,13 @@ LAST_INSERT_ID   { SET_LAST_INSERT_ID(); RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
   return MERGE_HINT_BEGIN;
 }
 
-<set_expr>{autocommit_0}                { return AUTOCOMMIT_0; }
+{show_master_status} { SET_BASIC_STMT(OBPROXY_T_SHOW_MASTER_STATUS); return SHOW_MASTER_STATUS; }
+{show_binary_logs} { SET_BASIC_STMT(OBPROXY_T_SHOW_BINARY_LOGS); return SHOW_BINARY_LOGS; }
+{show_binlog_events} { SET_BASIC_STMT(OBPROXY_T_SHOW_BINLOG_EVENTS); return SHOW_BINLOG_EVENTS; }
+{purge_binary_logs} { SET_BASIC_STMT(OBPROXY_T_PURGE_BINARY_LOGS); return PURGE_BINARY_LOGS; }
+{reset_master} { SET_BASIC_STMT(OBPROXY_T_RESET_MASTER); return RESET_MASTER; }
+{show_binlog_server_for_tenant} { SET_BASIC_STMT(OBPROXY_T_SHOW_BINLOG_SERVER_FOR_TENANT); return SHOW_BINLOG_SERVER_FOR_TENANT; }
+
 <set_expr>"global"                      { return GLOBAL; }
 <set_expr>"session"                     { return SESSION; }
 <set_expr>{int_num}                     { RETURN_INT_NUM(); }
@@ -802,6 +822,7 @@ LAST_INSERT_ID   { SET_LAST_INSERT_ID(); RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 <in_comment_expr>{space}*"trace_id"          { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(TRACE_ID); }
 <in_comment_expr>{space}*{comment_identifer}"." { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT_NAME_OB_DOT(NAME_OB_DOT); }
 <in_comment_expr>{space}*"rpc_id"            { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(RPC_ID); }
+<in_comment_expr>{space}*"target_db_server"  { PUSH_STATE(in_odp_comment_expr); return TARGET_DB_SERVER; }
 
 <in_odp_comment_expr>"group_id"          { return GROUP_ID; }
 <in_odp_comment_expr>"table_id"          { return TABLE_ID; }
@@ -812,6 +833,7 @@ LAST_INSERT_ID   { SET_LAST_INSERT_ID(); RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 <in_odp_comment_expr>"tnt_id"            { return TNT_ID; }
 <in_odp_comment_expr>"trace_id"          { return TRACE_ID; }
 <in_odp_comment_expr>"rpc_id"            { return RPC_ID; }
+<in_odp_comment_expr>"target_db_server"  { return TARGET_DB_SERVER; }
 <in_odp_comment_expr>{sqbegin}           { ENTER_QUOTE_STATE(comment_sq); }
 <in_odp_comment_expr>{comma}|{multi_byte_comma}  { return ','; }
 <in_odp_comment_expr>{odp_comment_identifer} { RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
@@ -882,6 +904,7 @@ LAST_INSERT_ID   { SET_LAST_INSERT_ID(); RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 <in_dbp_comment_expr>"$ROUTE"            { return ROUTE_TAG; }
 <in_dbp_comment_expr>"$SYS"              { return SYS_TAG; }
 <in_dbp_comment_expr>"SCAN_ALL"          { return SCAN_ALL; }
+<in_dbp_comment_expr>"STICKY_SESSION"    { return STICKY_SESSION; }
 <in_dbp_comment_expr>"SHARDING_KEY"      { return SHARD_KEY; }
 <in_dbp_comment_expr>"table_name"        { return TABLE_NAME;}
 <in_dbp_comment_expr>"parallelism"       { return PARALL; }
@@ -1135,7 +1158,6 @@ LAST_INSERT_ID   { SET_LAST_INSERT_ID(); RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 <in_expr>"last_insert_id"              { SET_LAST_INSERT_ID(); RETURN_IGNORED_WORD(); }
 <in_expr>"global"                      { SET_GLOBAL_SET_STMT(); RETURN_IGNORED_WORD(); }
 <in_expr>{tx_read_only}                { RETURN_COL_NAME(TX_READ_ONLY); }
-<in_expr>{autocommit_0}                { return AUTOCOMMIT_0; }
 <in_expr>{identifer}                   { RETURN_IGNORED_WORD(); }
 <in_expr><<EOF>>                       { return END_P; }
 <in_expr>{whitespace}                  { }
@@ -1169,7 +1191,7 @@ LAST_INSERT_ID   { SET_LAST_INSERT_ID(); RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 <prepare>{dquote}                      { POP_STATE(); }
 <prepare>{quote}                       { POP_STATE(); }
 
-<in_anonymous_block>"BEGIN"            { POP_STATE(); return BEGI;}
+<in_anonymous_block>"BEGIN"            { POP_STATE(); RETURN_NON_RESERVED_KEYWORD(BEGI);}
 <in_anonymous_block>.                  {}
 
 <<EOF>>                     { return END_P; }
diff --git a/src/obproxy/opsql/parser/ob_proxy_parser.y b/src/obproxy/opsql/parser/ob_proxy_parser.y
index 5e930f58..dbd0eda3 100644
--- a/src/obproxy/opsql/parser/ob_proxy_parser.y
+++ b/src/obproxy/opsql/parser/ob_proxy_parser.y
@@ -39,9 +39,6 @@ static inline void handle_stmt_end(ObProxyParseResult* result)
       case OBPROXY_T_SELECT_TX_RO:
         result->stmt_type_ = OBPROXY_T_SELECT;
         break;
-      case OBPROXY_T_SET_AC_0:
-        result->stmt_type_ = OBPROXY_T_OTHERS;
-        break;
       case OBPROXY_T_BEGIN:
         result->stmt_type_ = OBPROXY_T_OTHERS;
         break;
@@ -60,7 +57,7 @@ static inline void handle_stmt_end(ObProxyParseResult* result)
     }
   } else {
     result->stmt_type_ = result->cur_stmt_type_;
-  } 
+  }
 
   if (OBPROXY_T_TEXT_PS_PREPARE == result->text_ps_inner_stmt_type_) {
     ObProxyBasicStmtType tmp_type = result->cur_stmt_type_;
@@ -289,19 +286,19 @@ extern void *obproxy_parse_malloc(const size_t nbyte, void *malloc_pool);
 %token FROM DUAL
 %token PREPARE EXECUTE USING DEALLOCATE
 %token SELECT_HINT_BEGIN UPDATE_HINT_BEGIN DELETE_HINT_BEGIN INSERT_HINT_BEGIN REPLACE_HINT_BEGIN MERGE_HINT_BEGIN HINT_END COMMENT_BEGIN COMMENT_END ROUTE_TABLE ROUTE_PART_KEY QUERY_TIMEOUT READ_CONSISTENCY WEAK STRONG FROZEN PLACE_HOLDER
-%token END_P ERROR 
+%token END_P ERROR
 %token WHEN
  /* non-reserved keyword */
 %token<str> FLASHBACK AUDIT NOAUDIT
 %token<str> BEGI START TRANSACTION READ ONLY WITH CONSISTENT SNAPSHOT INDEX XA
 %token<str> WARNINGS ERRORS TRACE
 %token<str> QUICK COUNT AS WHERE VALUES ORDER GROUP HAVING INTO UNION FOR
-%token<str> TX_READ_ONLY AUTOCOMMIT_0 SELECT_OBPROXY_ROUTE_ADDR SET_OBPROXY_ROUTE_ADDR
+%token<str> TX_READ_ONLY SELECT_OBPROXY_ROUTE_ADDR SET_OBPROXY_ROUTE_ADDR
 %token<str> NAME_OB_DOT NAME_OB EXPLAIN DESC DESCRIBE NAME_STR
 %token<str> USE HELP SET_NAMES SET_CHARSET SET_PASSWORD SET_DEFAULT SET_OB_READ_CONSISTENCY SET_TX_READ_ONLY GLOBAL SESSION
 %token<str> NUMBER_VAL
-%token<str> GROUP_ID TABLE_ID ELASTIC_ID TESTLOAD ODP_COMMENT TNT_ID DISASTER_STATUS TRACE_ID RPC_ID
-%token<str> DBP_COMMENT ROUTE_TAG SYS_TAG TABLE_NAME SCAN_ALL PARALL SHARD_KEY
+%token<str> GROUP_ID TABLE_ID ELASTIC_ID TESTLOAD ODP_COMMENT TNT_ID DISASTER_STATUS TRACE_ID RPC_ID TARGET_DB_SERVER
+%token<str> DBP_COMMENT ROUTE_TAG SYS_TAG TABLE_NAME SCAN_ALL STICKY_SESSION PARALL SHARD_KEY
 %token<num> INT_NUM
 %type<str> right_string_val tracer_right_string_val name_right_string_val
 %type<node> call_expr
@@ -323,12 +320,13 @@ extern void *obproxy_parse_malloc(const size_t nbyte, void *malloc_pool);
 %token<str> SHOW_PROXYSTAT REFRESH
 %token<str> SHOW_PROXYTRACE
 %token<str> SHOW_PROXYINFO BINARY UPGRADE IDC
-%token<str> SHOW_TOPOLOGY GROUP_NAME SHOW_DB_VERSION
+%token<str> SHOW_ELASTIC_ID SHOW_TOPOLOGY GROUP_NAME SHOW_DB_VERSION
 %token<str> SHOW_DATABASES SHOW_TABLES SHOW_FULL_TABLES SELECT_DATABASE SHOW_CREATE_TABLE SELECT_PROXY_VERSION SHOW_COLUMNS SHOW_INDEX
 %token<str> ALTER_PROXYCONFIG
 %token<str> ALTER_PROXYRESOURCE
 %token<str> PING_PROXY
 %token<str> KILL_PROXYSESSION KILL_GLOBALSESSION KILL QUERY
+%token<str> SHOW_MASTER_STATUS SHOW_BINARY_LOGS SHOW_BINLOG_EVENTS PURGE_BINARY_LOGS RESET_MASTER SHOW_BINLOG_SERVER_FOR_TENANT
 
 %type<str> table_factor non_reserved_keyword var_name
 %start root
@@ -372,6 +370,7 @@ stmt: select_stmt                    {}
     | ddl_stmt                       {}
     | text_ps_stmt                   {}
     | merge_stmt                     {}
+    | binlog_stmt                    {}
     | other_stmt                     { result->cur_stmt_type_ = OBPROXY_T_OTHERS; }
 
 select_stmt: select_with_opt_hint select_expr_list opt_from
@@ -433,7 +432,7 @@ text_ps_prepare_args_stmt : text_ps_prepare_var_list
                           | text_ps_from_stmt
 
 
-text_ps_prepare_stmt: PREPARE var_name FROM 
+text_ps_prepare_stmt: PREPARE var_name FROM
                     {
                       result->text_ps_inner_stmt_type_ = OBPROXY_T_TEXT_PS_PREPARE;
                       result->text_ps_name_ = $2;
@@ -496,17 +495,14 @@ select_tx_read_only_stmt: SELECT TX_READ_ONLY { result->cur_stmt_type_ = OBPROXY
 select_proxy_version_stmt: SELECT_PROXY_VERSION
                          | SELECT_PROXY_VERSION AS var_name { result->col_name_ = $3; }
 
-set_autocommit_0_stmt: SET AUTOCOMMIT_0 { result->cur_stmt_type_ = OBPROXY_T_SET_AC_0; }
-                     | SET AUTOCOMMIT_0 expr_list
-
 hooked_stmt: select_tx_read_only_stmt       {}
            | select_proxy_version_stmt      {}
-           | set_autocommit_0_stmt          {}
            | select_obproxy_route_addr_stmt {}
            | set_obproxy_route_addr_stmt    {}
            | shard_special_stmt             {}
 
 shard_special_stmt: show_es_id_stmt {}
+                  | show_topology_stmt {}
                   | show_db_version_stmt {}
                   | SELECT_DATABASE { result->sub_stmt_type_ = OBPROXY_T_SUB_SELECT_DATABASE; }
                   | SHOW_DATABASES  { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_DATABASES; }
@@ -515,8 +511,9 @@ shard_special_stmt: show_es_id_stmt {}
                   | show_columns_stmt {}
                   | show_index_stmt {}
                   | SHOW_CREATE_TABLE routine_name_stmt { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_CREATE_TABLE; }
-                  | explain_or_desc routine_name_stmt
+                  | explain_or_desc var_name
                   {
+                      result->table_info_.table_name_ = $2;
                       result->cur_stmt_type_ = OBPROXY_T_DESC;
                       result->sub_stmt_type_ = OBPROXY_T_SUB_DESC_TABLE;
                   }
@@ -567,21 +564,28 @@ show_table_status_stmt: SHOW TABLE STATUS opt_show_from opt_show_like
 
 show_db_version_stmt: SHOW_DB_VERSION { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_DB_VERSION; }
 
-show_es_id_stmt: SHOW_TOPOLOGY { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY; }
-                 | SHOW_TOPOLOGY FROM NAME_OB
+show_es_id_stmt: SHOW_ELASTIC_ID { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_ELASTIC_ID; }
+                 | SHOW_ELASTIC_ID FROM NAME_OB
                  {
                      SET_ICMD_ONE_STRING($3);
-                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY;
+                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_ELASTIC_ID;
                  }
-                 | SHOW_TOPOLOGY WHERE GROUP_NAME '=' NAME_OB
+                 | SHOW_ELASTIC_ID WHERE GROUP_NAME '=' NAME_OB
                  {
                      SET_ICMD_SECOND_STRING($5);
-                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY;
+                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_ELASTIC_ID;
                  }
-                 | SHOW_TOPOLOGY FROM NAME_OB WHERE GROUP_NAME '=' NAME_OB
+                 | SHOW_ELASTIC_ID FROM NAME_OB WHERE GROUP_NAME '=' NAME_OB
                  {
                      SET_ICMD_ONE_STRING($3);
                      SET_ICMD_SECOND_STRING($7);
+                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_ELASTIC_ID;
+                 }
+
+show_topology_stmt: SHOW_TOPOLOGY { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY; }
+                 | SHOW_TOPOLOGY FROM NAME_OB
+                 {
+                     result->table_info_.table_name_ = $3;
                      result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY;
                  }
 
@@ -771,7 +775,7 @@ comment_expr: COMMENT_BEGIN comment_list COMMENT_END {}
             | COMMENT_BEGIN DISASTER_STATUS '=' right_string_val odp_comment_list COMMENT_END   { result->dbmesh_route_info_.disaster_status_str_ = $4; }
             | COMMENT_BEGIN DBP_COMMENT ROUTE_TAG '=' '{' dbp_comment_list '}' COMMENT_END  {}
             | COMMENT_BEGIN DBP_COMMENT SYS_TAG '=' '{' dbp_sys_comment '}' COMMENT_END  {}
-
+            | COMMENT_BEGIN TARGET_DB_SERVER '=' right_string_val odp_comment_list COMMENT_END { result->target_db_server_ = $4; }
 comment_list: /* empty */ {}
             | comment_list comment
 
@@ -794,6 +798,7 @@ dbp_comment: GROUP_ID '(' right_string_val ')'
             }
             | SCAN_ALL '(' ')'           { result->dbp_route_info_.scan_all_ = true; }
             | SCAN_ALL '(' PARALL '=' right_string_val ')' { result->dbp_route_info_.scan_all_ = true; }
+            | STICKY_SESSION '(' ')'           { result->dbp_route_info_.sticky_session_ = true; }
             | SHARD_KEY '(' dbp_kv_comment_list ')' {result->dbp_route_info_.has_shard_key_ = true;}
 
 dbp_sys_comment: TRACE '(' tracer_right_string_val')' { result->trace_id_ = $3; }
@@ -822,6 +827,7 @@ odp_comment: GROUP_ID '=' right_string_val   { result->dbmesh_route_info_.group_
            | RPC_ID '=' tracer_right_string_val     { result->rpc_id_ = $3; }
            | TNT_ID '=' right_string_val { result->dbmesh_route_info_.tnt_id_str_ = $3; }
            | DISASTER_STATUS '=' right_string_val { result->dbmesh_route_info_.disaster_status_str_ = $3; }
+           | TARGET_DB_SERVER '=' right_string_val { result->target_db_server_ = $3; }
            | NAME_OB '.' NAME_OB '=' name_right_string_val
            {
              malloc_shard_column_node($$, $1, $3, DBMESH_TOKEN_STR_VAL);
@@ -848,10 +854,10 @@ delete_with_opt_hint: DELETE
 insert_with_opt_hint: INSERT insert_all_when
                     | INSERT_HINT_BEGIN hint_list_with_end insert_all_when
 
-insert_all_when: 
+insert_all_when:
                | ALL
                | ALL WHEN
-       
+
 replace_with_opt_hint: REPLACE
                      | REPLACE_HINT_BEGIN hint_list_with_end
 merge_with_opt_hint: MERGE
@@ -911,6 +917,13 @@ icmd_stmt: show_proxynet
          | kill_globalsession
          | kill_mysql
 
+binlog_stmt: SHOW_MASTER_STATUS {}
+           | SHOW_BINARY_LOGS {}
+           | SHOW_BINLOG_EVENTS {}
+           | PURGE_BINARY_LOGS {}
+           | RESET_MASTER {}
+           | SHOW_BINLOG_SERVER_FOR_TENANT {}
+
  /* limit param stmt*/
 opt_limit:
  /*empty*/
@@ -1172,24 +1185,7 @@ non_reserved_keyword: START
                     | UPGRADE
                     | IDC
                     | QUERY
-                    | GROUP_ID
-                    | TABLE_ID
-                    | ELASTIC_ID
-                    | TESTLOAD
                     | GROUP_NAME
-                    | ODP_COMMENT
-                    | TNT_ID
-                    | DISASTER_STATUS
-                    | TRACE_ID
-                    | RPC_ID
-                    | DBP_COMMENT
-                    | ROUTE_TAG
-                    | SYS_TAG
-                    | TABLE_NAME
-                    | PARALL
-                    | SCAN_ALL
-                    | SHARD_KEY
-                    | INDEX
                     | FLASHBACK
                     | AUDIT
                     | NOAUDIT
diff --git a/src/obproxy/opsql/parser/ob_proxy_parser_gbk_lex.c b/src/obproxy/opsql/parser/ob_proxy_parser_gbk_lex.c
index 1deffdef..6e7ce96c 100644
--- a/src/obproxy/opsql/parser/ob_proxy_parser_gbk_lex.c
+++ b/src/obproxy/opsql/parser/ob_proxy_parser_gbk_lex.c
@@ -348,8 +348,8 @@ static void yy_fatal_error (yyconst char msg[] ,yyscan_t yyscanner );
 	yyg->yy_hold_char = *yy_cp; \
 	yyg->yy_c_buf_p = yy_cp;
 
-#define YY_NUM_RULES 336
-#define YY_END_OF_BUFFER 337
+#define YY_NUM_RULES 344
+#define YY_END_OF_BUFFER 345
 /* This struct is not used in this scanner,
    but its presence is necessary. */
 struct yy_trans_info
@@ -357,264 +357,285 @@ struct yy_trans_info
 	flex_int32_t yy_verify;
 	flex_int32_t yy_nxt;
 	};
-static yyconst flex_int16_t yy_accept[2327] =
+static yyconst flex_int16_t yy_accept[2515] =
     {   0,
-      146,  146,  189,  189,    0,    0,    0,    0,  202,  202,
-      230,  230,    0,    0,    0,    0,    0,    0,  258,  258,
+      147,  147,  195,  195,    0,    0,    0,    0,  208,  208,
+      238,  238,    0,    0,    0,    0,    0,    0,  267,  267,
         0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-        0,    0,    0,    0,    0,    0,  307,  307,    0,    0,
-        0,    0,  325,  325,  330,  330,    0,    0,  168,  168,
-        0,    0,    0,    0,    0,    0,  337,  335,  156,  156,
-      152,  282,  146,  146,  271,  153,  152,  144,  335,  152,
-      152,  145,  151,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  288,  335,  335,  335,
-
-      335,  335,  335,  191,  336,  189,  188,  191,  191,  182,
-      189,  189,  189,  189,  189,  189,  191,  191,  191,  191,
-      191,  191,  195,  194,  195,  197,  197,  336,  197,  197,
-      197,  197,  197,  197,  197,  197,  197,  197,  197,  197,
-      197,  197,  197,  197,  197,  197,  207,  207,  202,  207,
-      207,  202,  202,  207,  207,  207,  207,  207,  207,  207,
-      234,  233,  233,  230,  228,  234,  230,  229,  230,  232,
-      231,  230,  230,  230,  230,  230,  234,  234,  240,  239,
-      239,  236,  240,  237,  240,  240,  242,  241,  241,  241,
-      242,  242,  242,  260,  257,  257,  258,  252,  253,  260,
-
-      258,  256,  258,  258,  258,  258,  258,  258,  260,  260,
-      262,  261,  336,  336,  268,  267,  267,  265,  263,  264,
-      268,  268,  268,  270,  269,  269,  269,  270,  270,  270,
-      277,  278,  336,  272,  273,  336,  283,  284,  336,  290,
-      291,  293,  294,  310,  308,  308,  298,  307,  307,  299,
-      297,  310,  309,  310,  307,  307,  307,  307,  307,  300,
-      310,  310,  310,  310,  310,  310,  334,  334,  317,  316,
-      316,  314,  316,  315,  312,  313,  317,  317,  317,  317,
-      327,  326,  326,  320,  325,  325,  321,  318,  319,  327,
-      325,  325,  325,  327,  327,  327,  327,  327,  327,  331,
-
-      330,  332,  329,  330,  336,  336,  336,  336,  336,  336,
-      178,  178,  176,  170,  170,  174,  168,  168,  173,  176,
-      167,  176,  176,  166,  172,  171,  171,  168,  168,  168,
-      175,  176,  176,  176,  176,  176,  176,  117,  115,  115,
-      115,  117,  116,  117,  117,  117,  126,  124,  124,  124,
-      126,  125,  126,  126,  126,  336,  336,  336,  156,    0,
-      148,    0,    0,    0,    0,    0,    0,    0,  156,  146,
-      156,  156,  156,  156,  156,  156,  146,    0,    0,    0,
-        0,    0,    0,    0,  147,    0,    0,    0,    0,    0,
-        0,  145,    0,  150,  192,  150,  145,  146,  146,  146,
-
-       44,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,    8,    0,  149,    0,    0,    0,    0,
-        0,    0,    0,  146,  154,  155,  144,  189,    0,    0,
-        0,    0,    0,    0,    0,  190,  182,  182,  189,  189,
-      189,  189,  189,  189,    0,  189,  179,  180,    0,  193,
-        0,    0,    0,  217,    0,    0,    0,    0,    0,    0,
-
-        0,    0,    0,    0,    0,    0,    0,    0,  196,    0,
+        0,    0,    0,    0,    0,    0,  315,  315,    0,    0,
+        0,    0,  333,  333,  338,  338,    0,    0,  174,  174,
+        0,    0,    0,    0,    0,    0,    0,    0,  345,  343,
+      157,  157,  153,  291,  147,  147,  280,  154,  153,  145,
+      343,  153,  153,  146,  152,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  297,  343,
+
+      343,  343,  343,  343,  343,  197,  344,  195,  194,  197,
+      197,  188,  195,  195,  195,  195,  195,  195,  197,  197,
+      197,  197,  197,  197,  201,  200,  201,  203,  203,  344,
+      203,  203,  203,  203,  203,  203,  203,  203,  203,  203,
+      203,  203,  203,  203,  203,  203,  203,  203,  213,  213,
+      208,  213,  213,  208,  208,  213,  213,  213,  213,  213,
+      213,  213,  242,  241,  241,  238,  236,  242,  238,  237,
+      238,  240,  239,  238,  238,  238,  238,  238,  242,  242,
+      248,  247,  247,  244,  248,  245,  248,  248,  250,  249,
+      249,  249,  250,  250,  250,  269,  266,  266,  267,  261,
+
+      262,  269,  267,  265,  267,  267,  267,  267,  267,  267,
+      269,  269,  271,  270,  344,  344,  277,  276,  276,  274,
+      272,  273,  277,  277,  277,  279,  278,  278,  278,  279,
+      279,  279,  286,  287,  344,  281,  282,  344,  292,  293,
+      344,  299,  300,  302,  303,  318,  316,  316,  307,  315,
+      315,  308,  306,  318,  317,  318,  315,  315,  315,  315,
+      309,  318,  318,  318,  318,  318,  318,  342,  342,  325,
+      324,  324,  322,  324,  323,  320,  321,  325,  325,  325,
+      325,  335,  334,  334,  328,  333,  333,  329,  326,  327,
+      335,  333,  333,  333,  335,  335,  335,  335,  335,  335,
+
+      339,  338,  340,  337,  338,  344,  344,  344,  344,  344,
+      344,  184,  184,  182,  176,  176,  180,  174,  174,  179,
+      182,  173,  182,  182,  172,  178,  177,  174,  174,  181,
+      182,  182,  182,  182,  182,  182,  117,  115,  115,  115,
+      117,  116,  117,  117,  117,  127,  125,  125,  125,  127,
+      126,  127,  127,  127,  344,  344,  344,  157,    0,  149,
+        0,    0,    0,    0,    0,    0,    0,  157,  147,  157,
+      157,  157,  157,  157,  157,  147,    0,    0,    0,    0,
+        0,    0,    0,  148,    0,    0,    0,    0,    0,    0,
+      146,    0,    0,  146,  151,  198,  151,  146,  147,  147,
+
+      147,   44,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,    8,    0,  150,    0,    0,    0,
+        0,    0,    0,    0,  147,  155,  156,  145,  195,    0,
+        0,    0,    0,    0,    0,    0,  196,  188,  188,  195,
+      195,  195,  195,  195,  195,    0,  195,  185,  186,    0,
+      199,    0,    0,    0,  223,    0,    0,    0,    0,    0,
+
+        0,    0,    0,    0,    0,    0,    0,    0,    0,  202,
         0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-        0,    0,  204,    0,    0,    0,    0,    0,    0,    0,
-      202,    0,    0,    0,    0,    0,    0,    0,  203,    0,
-        0,    0,    0,    0,    0,    0,  206,  202,  202,    0,
-      205,    0,    0,    0,    0,    0,    0,    0,  202,  230,
-        0,  235,  230,  230,  230,  230,  230,  230,  230,  230,
-      233,  229,    0,  238,  239,  237,    0,  241,  241,  258,
-      258,  258,    0,  259,  258,  258,  258,  258,  258,  258,
-      257,  254,  255,  256,  262,  261,    0,  266,  267,  264,
-
-        0,  269,  269,  277,    0,    0,  279,    0,    0,  280,
-      272,    0,    0,  274,    0,    0,  275,    0,  285,    0,
-        0,    0,  286,  290,  289,  293,  292,  308,    0,  308,
-      307,  308,  308,  308,  308,  308,  308,  307,    0,    0,
-        0,    0,    0,    0,    0,    0,  307,  307,  307,  307,
-      307,  307,    0,  307,  297,    0,  316,    0,  316,    0,
-        0,  312,  313,  326,    0,  326,  325,  326,  326,  326,
-      326,  326,  326,  325,    0,    0,    0,    0,    0,    0,
-        0,  325,  325,  325,    0,  325,  318,  319,  330,    0,
-        0,    0,    0,    0,    0,  330,    0,  330,    0,  170,
-
-        0,  170,  168,  170,  170,  170,  170,  170,  170,  168,
-        0,    0,    0,    0,    0,    0,  166,    0,  169,  169,
-      166,  168,    0,  168,  168,  168,    0,  168,  167,  115,
-        0,  115,    0,    0,    0,  124,    0,  124,    0,    0,
-        0,    0,    0,    0,    0,    0,  156,  146,    0,    0,
-      156,    0,    0,  150,    0,    0,  146,   55,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,   42,  146,
-      146,  146,  146,  146,  146,  146,  111,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,   13,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,   53,  146,
-      146,  146,  146,  146,  146,    0,    0,    0,  189,  189,
-      189,  189,  189,  189,    0,    0,    0,    0,    0,    0,
+        0,    0,    0,  210,    0,    0,    0,    0,    0,    0,
+        0,  208,    0,    0,    0,    0,    0,    0,    0,  209,
+        0,    0,    0,    0,    0,    0,    0,  212,  208,  208,
+        0,  211,    0,    0,    0,    0,    0,    0,    0,  208,
+      238,    0,  243,  238,  238,  238,  238,  238,  238,  238,
+      238,  241,  237,    0,  246,  247,  245,    0,  249,  249,
+      267,  267,  267,    0,  268,  267,  267,  267,  267,  267,
+      267,  267,  266,  263,  264,  265,  271,  270,    0,  275,
+
+      276,  273,    0,  278,  278,  286,    0,    0,  288,    0,
+        0,  289,  281,    0,    0,  283,    0,    0,  284,    0,
+      294,    0,    0,    0,  295,  299,  298,  302,  301,  316,
+        0,  316,  315,  316,  316,  316,  316,  316,  316,  315,
+        0,    0,    0,    0,    0,    0,    0,    0,  315,  315,
+      315,  315,  315,    0,  315,  306,    0,  324,    0,  324,
+        0,    0,  320,  321,  334,    0,  334,  333,  334,  334,
+      334,  334,  334,  334,  333,    0,    0,    0,    0,    0,
+        0,    0,  333,  333,  333,    0,  333,  326,  327,  338,
+        0,    0,    0,    0,    0,    0,  338,    0,  338,    0,
+
+      176,    0,  176,  174,  176,  176,  176,  176,  176,  176,
+      174,    0,    0,    0,    0,    0,    0,  172,    0,    0,
+      172,  175,  175,  172,  174,  174,  174,    0,  174,  173,
+      115,    0,  115,    0,    0,    0,  125,    0,  125,    0,
+        0,    0,    0,    0,    0,    0,    0,  157,  147,    0,
+        0,  146,  157,    0,  146,    0,    0,  151,    0,  146,
+        0,  147,   55,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,   42,  147,  147,  147,  147,  147,  147,
+      147,  111,  147,  147,  147,  147,  147,  147,  147,  147,
+
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,   13,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,   53,  147,  147,  147,  147,  147,
+      147,    0,    0,    0,  188,  188,  195,  195,  195,  195,
+      195,  195,    0,    0,    0,    0,    0,    0,    0,    0,
         0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-        0,  202,  202,    0,    0,    0,  230,  230,  230,  230,
-      230,  230,  230,  230,  258,  258,  258,  258,  258,  258,
-      258,  258,  281,    0,  281,    0,  276,    0,  276,    0,
-      287,    0,  287,    0,  308,  307,  308,    0,    0,    0,
-
-        0,  307,  307,  307,  307,  307,  307,    0,    0,  316,
-        0,    0,  326,  325,  326,    0,  325,  325,  325,    0,
-      330,    0,    0,  170,  168,  170,    0,    0,  169,    0,
-        0,  168,    0,    0,  168,  168,  168,    0,  115,    0,
-        0,    0,  124,    0,    0,    0,    0,    0,    0,    0,
-      156,    0,  156,  156,  156,    0,  150,    0,  150,  150,
-      146,  146,  146,  146,  146,  146,   14,  146,  146,  146,
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-        0,   80,    0,   76,    0,    0,    0,   85,    0,   97,
-        0,    0,    0,  133,    0,    0,    0,    0,    0,    0,
+        0,    0,   77,    0,    0,    0,    0,    0,    0,    0,
+        0,    0,    0,    0,    0,    0,    0,    0,    0,   81,
+        0,    0,    0,    0,    0,  101,  104,  118,    0,  188,
+      188,  187,  195,    0,    0,  238,  238,  267,    0,    0,
+      315,  333,  172,  172,  172,  146,  146,  146,    0,    0,
+
+      160,    0,  161,    0,    0,    0,  144,    0,    0,    0,
+        0,    0,  158,    0,    0,    0,    0,    0,    0,    0,
+        0,    0,    0,    0,    0,    0,    0,    0,  120,    0,
+        0,    0,    0,    0,    0,    0,    0,    0,  109,    0,
+        0,    0,    0,  106,    0,  159,    0,  188,  188,  195,
+        0,    0,  238,  238,  255,    0,  314,  312,  332,  172,
+      172,  172,  146,  146,  146,    0,    0,    0,    0,    0,
+      162,    0,    0,    0,    0,    0,    0,    0,    0,    0,
         0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-        0,    0,    0,    0,   98,    0,    0,    0,    0,    0,
-        0,    0,    0,    0,    0,    0,    0,    0,  118,    0,
-        0,  131,    0,    0,    0,    0,    0,    0,  305,    0,
+      112,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 
-        0,    0,    0,  140,   79,    0,    0,    0,    0,   79,
-        0,    0,   79,    0,    0,  139,    0,   80,    0,    0,
-        0,    0,    0,    0,   79,    0
+       99,    0,  108,  188,  188,  195,  220,    0,  231,  238,
+        0,  172,  172,  172,  146,  146,  146,    0,    0,    0,
+        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+        0,    0,    0,   80,  165,    0,    0,    0,    0,  122,
+        0,    0,   87,    0,   91,    0,  102,    0,    0,  188,
+      188,  189,  225,  235,    0,  172,  172,  172,  146,  146,
+      146,  133,    0,    0,  136,  167,    0,  131,    0,    0,
+        0,    0,    0,    0,    0,    0,    0,   80,    0,    0,
+        0,  130,    0,    0,    0,   96,    0,    0,   86,  188,
+      188,    0,  172,  172,  172,  146,  146,  147,    0,  137,
+
+        0,    0,    0,    0,    0,   80,    0,   76,    0,    0,
+      166,    0,    0,   85,  164,    0,   97,  188,    0,  172,
+      172,  174,  151,  151,  147,  134,    0,    0,    0,    0,
+        0,    0,    0,    0,    0,    0,    0,    0,  175,  175,
+      174,  151,  151,    0,    0,    0,    0,    0,    0,    0,
+        0,    0,   98,    0,  175,  175,    0,    0,    0,    0,
+        0,    0,    0,    0,    0,    0,    0,  119,    0,    0,
+      132,    0,    0,    0,    0,    0,    0,    0,  314,    0,
+        0,    0,    0,  141,   79,    0,    0,    0,    0,    0,
+        0,   79,    0,    0,    0,   79,    0,    0,    0,  140,
+
+        0,   80,    0,    0,    0,    0,    0,    0,  169,    0,
+        0,    0,   79,    0
     } ;
 
 static yyconst flex_int32_t yy_ec[256] =
@@ -623,2339 +644,2383 @@ static yyconst flex_int32_t yy_ec[256] =
         1,    2,    4,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    2,    5,    6,    7,    8,    5,    5,    9,   10,
-       11,   12,   13,   14,   15,   16,   17,   18,   19,   19,
-       19,   19,   19,   19,   19,   19,   19,   20,   21,    1,
-       22,    1,   23,   24,   25,   26,   27,   28,   29,   30,
-       31,   32,   33,   34,   35,   36,   37,   38,   39,   40,
-       41,   42,   43,   44,   45,   46,   47,   48,   49,   50,
-       51,   52,   51,   53,   54,   55,   56,   57,   58,   59,
-
-       60,   61,   62,   63,   64,   65,   66,   67,   68,   69,
-       70,   71,   72,   73,   74,   75,   76,   77,   78,   79,
-       80,   81,   82,   53,   82,   53,   51,   51,   83,   83,
-       83,   83,   83,   83,   83,   83,   83,   83,   83,   83,
-       83,   83,   83,   83,   83,   83,   83,   83,   83,   83,
-       83,   83,   83,   83,   83,   83,   83,   83,   83,   83,
-       84,   85,   86,   87,   87,   87,   87,   88,   89,   90,
-       90,   91,   92,   92,   92,   92,   92,   92,   92,   92,
-       92,   92,   92,   92,   92,   92,   92,   92,   92,   92,
-       92,   92,   92,   92,   92,   92,   92,   92,   92,   92,
-
-       92,   92,   92,   92,   92,   92,   92,   92,   92,   92,
-       92,   92,   92,   92,   92,   92,   92,   92,   92,   92,
-       92,   92,   92,   92,   92,   92,   92,   92,   92,   92,
-       92,   92,   92,   92,   92,   92,   92,   92,   92,   92,
-       92,   92,   93,   93,   93,   93,   93,   93,   93,   93,
-       93,   93,   93,   93,    1
+       11,   12,   13,   14,   15,   16,   17,   18,   18,   18,
+       18,   18,   18,   18,   18,   18,   18,   19,   20,    1,
+       21,    1,   22,   23,   24,   25,   26,   27,   28,   29,
+       30,   31,   32,   33,   34,   35,   36,   37,   38,   39,
+       40,   41,   42,   43,   44,   45,   46,   47,   48,   49,
+       50,   51,   50,   52,   53,   54,   55,   56,   57,   58,
+
+       59,   60,   61,   62,   63,   64,   65,   66,   67,   68,
+       69,   70,   71,   72,   73,   74,   75,   76,   77,   78,
+       79,   80,   81,   52,   81,   52,   50,   50,   82,   82,
+       82,   82,   82,   82,   82,   82,   82,   82,   82,   82,
+       82,   82,   82,   82,   82,   82,   82,   82,   82,   82,
+       82,   82,   82,   82,   82,   82,   82,   82,   82,   82,
+       83,   84,   85,   86,   86,   86,   86,   87,   88,   89,
+       89,   90,   91,   91,   91,   91,   91,   91,   91,   91,
+       91,   91,   91,   91,   91,   91,   91,   91,   91,   91,
+       91,   91,   91,   91,   91,   91,   91,   91,   91,   91,
+
+       91,   91,   91,   91,   91,   91,   91,   91,   91,   91,
+       91,   91,   91,   91,   91,   91,   91,   91,   91,   91,
+       91,   91,   91,   91,   91,   91,   91,   91,   91,   91,
+       91,   91,   91,   91,   91,   91,   91,   91,   91,   91,
+       91,   91,   92,   92,   92,   92,   92,   92,   92,   92,
+       92,   92,   92,   92,    1
     } ;
 
-static yyconst flex_int32_t yy_meta[94] =
+static yyconst flex_int32_t yy_meta[93] =
     {   0,
         1,    2,    3,    3,    1,    4,    5,    6,    7,    1,
-        1,    1,    8,    1,    9,   10,    1,   11,   11,   12,
-        1,    1,    1,   13,   11,   11,   11,   11,   11,   11,
-       11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
-       11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
-       13,   14,   13,   11,   15,   11,   11,   11,   11,   11,
-       11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
-       11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
-       11,   13,   16,   16,   16,   16,   16,   17,   18,   16,
-       19,   16,   16
+        1,    1,    2,    1,    8,    9,    1,   10,   11,    1,
+        1,    1,   12,   10,   10,   10,   10,   10,   10,   10,
+       10,   10,   10,   10,   10,   10,   10,   10,   10,   10,
+       10,   10,   10,   10,   10,   10,   10,   10,   10,   12,
+       13,   12,   10,   14,   10,   10,   10,   10,   10,   10,
+       10,   10,   10,   10,   10,   10,   10,   10,   10,   10,
+       10,   10,   10,   10,   10,   10,   10,   10,   10,   10,
+       12,   15,   15,   15,   15,   15,   16,   17,   15,   18,
+       15,   15
 
     } ;
 
-static yyconst flex_int16_t yy_base[2511] =
+static yyconst flex_int16_t yy_base[2700] =
     {   0,
-        0,    0,   93,    0,  184,  185,  197,    0,  290,    0,
-      383,    0,  475,  479,  492,  496,    0,    0,  582,    0,
-      674,  677,  686,  697,  708,  719,  471,  476,  477,  481,
-      486,  491, 3544, 3533, 3529, 3518,  805,    0,  499,  500,
-      897,  911,  997,    0, 1090,    0,  504,  506, 1183,    0,
-     1275, 1282, 1304, 1311,  486,  491, 3564,15602,  907, 1289,
-    15602, 1314, 1407,  649, 1349,15602,  171,15602,  176,  174,
-     3549, 1485,15602, 1563,  733,  909,  727,  913,  917, 1319,
-     1449, 1492, 1351, 1524,  667, 1571, 1567, 1600, 1457, 1628,
-     1633, 1650, 1671, 1326, 1700, 1427, 1682, 1728, 1769, 1777,
-
-      905, 1784,  493,15602,15602, 1757,15602,  501,  497, 1786,
-     1810, 1822, 1840, 1857, 1876, 1892, 1979, 1986, 1993, 1305,
-     2000,  502,15602,15602,  518,15602, 2081, 2173, 2265,  529,
-      489,    0,15602,  491,  504,  500,  516,  657,  654, 1998,
-     2357, 3466,    0,  533,    0,  673,15602, 2015, 2043, 2107,
-      537, 2199, 2214, 2238, 2370, 2377, 2395,  684, 2419,  729,
-    15602,15602,15602,    0,15602,  552,    0,15602,    0,15602,
-    15602,  691,  708,  711,  714, 2018, 3448, 3436,15602,15602,
-    15602,15602,  560,15602, 3434, 3422,15602,15602,15602,15602,
-      562, 3426, 3402,15602,15602,15602,  722,15602,15602,  756,
-
-        0,15602,    0,    0,  715,  734,  912,  916, 3394,  688,
-    15602,15602, 3372, 3356,15602,15602,15602,15602,15602,15602,
-      774, 3349, 3342,15602,15602,15602,15602,  787, 3340,  713,
-        0, 2135,    0,    0, 2144,    0,15602, 1747,    0,    0,
-     3353,    0, 3349,15602, 1297, 1360,15602, 2501, 2225,15602,
-    15602, 3382,15602, 3351, 2397, 2556, 1489, 2181,  877,15602,
-     2519, 2526, 2599, 1262, 2606,  944,15602,  738,15602, 1373,
-     1387,15602,    0,15602,15602,15602, 3337,  908, 3252,  878,
-    15602, 1445, 1451,15602, 2688, 2249,15602,15602,15602, 3301,
-     2583, 2474, 2643, 2737, 2744, 2786, 1546, 2793, 1269,15602,
-
-     2631,15602,15602, 2767, 2854, 2862, 2869, 1276, 2876, 1291,
-    15602,  905,15602, 1600, 1610,15602, 2958, 2900,15602, 1298,
-    15602, 1312, 1338, 3036,15602,15602, 3287, 1662, 1797, 1973,
-    15602, 3007, 3015, 3056, 1445, 3094, 1407,15602, 1796, 1852,
-        0, 3294,15602,  903,  917, 3216,15602, 1886, 1951,    0,
-     3283,15602,  915, 1269, 3178, 1288, 1321, 1340, 2011, 3175,
-    15602, 2912, 3133, 3147, 3154, 1432, 3173, 1451,    0, 3255,
-     3348, 3164,    0, 3371,    0, 1461, 3154, 3388, 3395, 3402,
-     1466, 3456, 1488, 3199,15602, 3464, 3478, 3516, 1497, 3534,
-     1500, 1508, 2061, 2095,15602, 2189, 3601, 2438, 3547, 2475,
-
-     2193, 3114, 2804, 2211, 2873, 2364, 3563, 2731, 3608, 3234,
-     3075, 3636, 3198, 3416, 3586, 3644, 3679, 3382, 3687, 3409,
-     3683, 3701, 3717, 3485, 3722, 3708, 3751, 3773, 3778, 3785,
-     3790, 3802, 3818, 3835, 2916, 3823, 3851, 3900, 3881, 3918,
-     3863, 3926, 3947, 3965, 3971, 3979, 3983, 3999, 4033, 4038,
-     4052, 3001, 4057, 4066, 3238,15602, 4084, 4120, 4123, 1519,
-     4138, 1528, 4094, 4091,15602,15602,15602, 4123, 4141, 4210,
-     4217, 1548, 4224, 1602, 1449,15602, 1635, 4226, 4250, 4167,
-     4238, 4276, 4302, 4320, 4263, 4331,15602,15602, 1460,15602,
-     4423, 4515,    0,15602, 1448, 1488, 1518, 1570, 1577, 3834,
-
-     4607, 3146,    0, 1640,    0, 1667, 3138, 1522,15602, 1617,
-     1627, 1647, 1656, 1657, 1657, 1685, 1691, 1681, 1683, 1734,
-     4357,    0,15602, 4449, 4469, 4537, 4621, 1686, 4628, 1702,
-     4479, 4646, 4687, 4700, 1788, 4707, 1793, 4490,15602, 4725,
-     4766, 4779, 1799, 4786, 1843, 1638,15602, 4786, 4797, 4808,
-    15602, 4895, 4898, 4902, 1849, 4916, 1863, 4873, 4902,    0,
-     1722,15602, 1735, 1769, 1788, 1807, 1861, 1861, 1913, 1970,
-    15602,15602, 1802,15602,15602,15602, 1922,15602,15602,    0,
-     1989, 1993, 2008,15602, 2010, 2008, 2032, 2037, 2060, 2064,
-    15602,15602,15602,15602,15602,15602, 2060,15602,15602,15602,
-
-     2145,15602,15602,    0, 2365, 3210,15602, 3197, 3099,15602,
-        0, 2395, 3168,15602, 3155, 3072,15602, 2462,15602, 3144,
-     3127, 3050,15602,    0,15602,    0,15602, 2413, 3026,    0,
-     4998, 5091, 3014,    0, 5114,    0, 1919, 4940, 4920, 5131,
-     5138, 1953, 5145, 1955, 2537, 2791, 4972, 5147, 5171, 5182,
-     5202, 5230, 4951, 4983,15602, 2087, 2600, 3008,    0, 2675,
-     2143,15602,15602, 2683, 2989,    0, 5323, 5416, 2948,    0,
-     5439,    0, 2142, 5087, 5456, 5463, 5470, 2162, 5524, 2164,
-     2783, 5265, 5299, 5472, 5213, 5276,15602,15602, 5310, 5562,
-     5575, 5583, 2166, 5601, 2207, 5585, 5412, 5601, 2159, 2937,
-
-     2940,    0, 5694, 5787, 2934,    0, 5810,    0, 2256, 5636,
-     5827, 5834, 5841, 2258, 5895, 2276, 2301, 2945, 2415, 2677,
-     5962, 4443, 2362, 4783, 4632, 5125, 5647, 4531,15602, 2951,
-     2932,    0, 3004, 2166, 2185, 3075, 2928,    0, 3079, 2177,
-     2186, 2211, 2410, 2449, 5667, 5784, 5678, 6055, 5841, 5852,
-     3083, 2910, 2618, 2789, 2812, 2325, 5872, 5883, 5922, 5949,
-     5910, 5998, 6010, 6067, 6082, 6043, 6138, 2887, 3501, 3605,
-     4228, 4653, 4426, 3971, 3936, 4782, 4786, 3062, 3144, 3736,
-     3884, 3797, 4003, 5179, 4081, 4428, 3991, 4359, 6172, 6173,
-     4647, 5549, 4594, 6175, 6145, 4692, 6205, 5173, 4773, 3995,
-
-     4575, 6216, 5497, 6219, 5949, 6220, 6196, 6228, 6240, 6218,
-     4698, 6237, 6257, 6265, 6269, 6267, 6286, 6314, 6290, 6282,
-     6327, 6311, 6334, 6292, 6336, 6343, 6366, 6376, 6352, 6354,
-     6382, 6373, 6386, 6396, 6398, 6106, 6391, 2327, 6404, 6439,
-     6460, 6475, 6499, 6535, 2344, 6613, 6691, 2526, 3119, 2555,
-     3028, 2543, 3165, 3276, 2609, 2757, 2372, 6421, 6548, 6488,
-     6584, 6571, 6642, 6519, 6653, 2388, 2480, 2499, 2551, 2923,
-     2624, 2663, 2908, 2756, 2753, 2800, 2834, 2860, 2874, 2877,
-     2890, 3011,15602, 2943, 2914, 3112,15602, 2899, 2892, 3231,
-    15602, 2884, 2876, 3315, 6602, 6784, 3331, 2787, 3061, 3191,
-
-     3201, 6678, 6734, 6765, 6802, 6821, 6666, 2422, 3241, 3496,
-     2758, 3252, 6832, 6925, 3545, 2752, 6905, 6955, 6874, 2444,
-     6936, 2477, 3335, 6966, 7059, 3552, 2740, 3284, 3476, 3559,
-     2501, 7013, 3392, 3452, 7038, 7081, 7110, 2510, 3593, 2737,
-     3453, 3449, 3760, 2722, 3469, 3491, 3560, 3574, 3567, 2529,
-     2597, 2601,    0, 3883, 2685, 2637, 2735, 2739, 2746, 2784,
-     7133, 7155, 7002, 7183, 7194, 7215, 7226, 7291, 3721, 3860,
-     7292, 7293, 6780, 7298, 5600, 7356, 7299, 3879, 7300, 7357,
-     7305, 4441, 6782, 3959, 7359, 7358, 7366, 4054, 4494, 7364,
-     6921, 7372, 4941, 7409, 7125, 5957, 7410, 7411, 6329, 6923,
-
-     7417, 6584, 6650, 7419, 6869, 7455, 7435, 6942, 7127, 7126,
-     7148, 7149, 7443, 7461, 7467, 7472, 7200, 7201, 7477, 7540,
-     7538, 7548, 7495, 7532, 7537, 7306, 7592, 7489, 7542, 7600,
-     7585, 7597, 7602, 7611, 7608, 7605, 7618, 7626, 7647, 7650,
-     7652, 2878, 7634, 7649, 7664, 7675, 7705, 7692, 7753, 7831,
-     3606, 4127,15602, 3604, 3784, 5450, 4790, 4090, 5477, 2880,
-     2885, 7716, 7792, 2919, 3568, 3584, 3671, 3701, 3796, 3838,
-     3842, 3872, 3905,    0, 3992, 4086, 2712, 4140, 4140, 4159,
-     4761, 2664, 7130, 2662, 4591, 2658, 2947,    0, 4397, 2641,
-     4203, 4206, 2638, 7803, 7842, 7934, 7944, 7813, 7950, 4235,
-
-        0, 4582, 2599, 4247, 3009,    0, 5075, 2580, 7952, 7901,
-     7971, 7982,15602, 3018,    0, 5465, 2578, 3038, 3150, 3175,
-     3185, 3192, 4393, 4483, 8019, 8057, 8068,    0, 5659, 2554,
-    15602, 4583,    0, 5770, 2551,15602,15602,15602,15602,15602,
-     8160, 8252, 5169, 4606, 4607, 4786, 5562, 5523, 7130, 4902,
-     4687, 5524, 7439, 7776, 7914, 7916, 5617, 5807, 7034, 6566,
-     7918, 4861, 4698, 5228, 6781, 7523, 7921, 4700, 7775, 8134,
-     8344, 6920, 4733, 7781, 8116, 6922, 7783, 7785, 4765, 7928,
-     8010, 8427, 7782, 4862, 4967, 5067, 7473, 8138, 8141, 8142,
-     8145, 8045, 8046, 7929, 5571, 5162, 5251, 5256, 5416, 5461,
-
-     5465, 2548, 8510, 8593, 5616, 5561, 7784, 5601, 8144, 5663,
-     8154, 8156, 5763, 8157, 8161, 8180, 5814, 8041, 8159, 8048,
-     5816, 8189, 8200, 8295, 8236, 8327,15602, 8662, 8740, 5851,
-     6398, 7840, 6399, 8060, 8064, 7198, 8370, 8220, 5878, 5955,
-     2574, 5999, 2558, 5989, 6045, 2555, 6148, 2522, 6150, 6181,
-     6220, 2501,    0, 2540, 7287, 2523,  696, 2499, 7341, 2483,
-      698, 2463, 6513, 2452, 1404, 6303, 6302, 6572, 8382, 8410,
-     8503, 8833, 2420, 8508, 8537, 8549, 8577,15602, 6605, 8596,
-     8610, 8634, 6611, 6608, 8674, 8702, 8729,15602, 8230, 8925,
-     8341, 8139, 6710, 8317, 6764, 8325, 8327, 6779, 8494, 8343,
-
-     8496, 8655, 8499, 6780, 8344, 8439, 8309, 8186, 8454, 6782,
-     8728, 6851, 8726, 6969, 7163, 2336, 8498, 8898, 8933, 2399,
-     9016, 8727, 7360, 7416, 8901, 7530, 2308, 8909, 8907, 7524,
-     8911, 7538, 8914, 8913, 8219, 8964, 8957, 7627, 7674, 7670,
-     7678, 2332, 7826, 2325, 7869, 7846, 7836, 8952, 7873, 7932,
-     7987, 8006, 8008, 8065, 8075, 2263, 8143, 8133, 8179, 8925,
-     8730, 8181, 9008, 8924, 8215, 8497, 8971, 8989, 9018, 9044,
-     9032, 8927, 9026, 8233, 8997, 8235, 8453, 9030, 8343, 8376,
-     9066, 8421, 8461, 8501,    0, 8975, 8533,    0, 8550,    0,
-     8585, 8647, 8673, 8672, 8673, 8745, 8742, 8926, 9101, 9122,
-
-     9168, 8913, 2212, 9214, 9221,    0,    0, 9228, 8953, 9306,
-     2195,    0, 9399,    0, 9243, 5836, 9248, 9259, 9284,15602,
-     9381, 9408, 9430, 8988, 9021, 9441, 9345, 9466, 9014, 2166,
-     9010, 9098, 9015, 9170, 9116, 9118, 9016, 9063, 9236, 2219,
-     9558, 9117, 9097, 9152, 9210, 9205, 9229, 9226, 9279, 2175,
-     9641, 9187, 9202, 9220, 9238, 2094, 3283, 9214, 9219, 9497,
-     9239, 9234, 9242, 9566, 9513, 9272, 9534, 9595, 2110, 9724,
-     9328, 9326, 9308, 9384, 9383, 9401, 9416, 9406, 9406, 9408,
-     9415, 9424, 9463, 9483, 9481, 9475, 9473, 9512, 9495, 9525,
-     9537, 9548, 9544, 9543, 9546, 9572, 9634, 2107, 9807, 9539,
-
-     9596, 9583, 9597, 9666, 9634, 9575, 9641, 9642, 9675, 9645,
-     9682, 9705, 9698, 9558, 2061, 9613, 9640, 9646, 9685, 9686,
-     9701, 9694, 9700, 9706, 9715, 9723, 9724, 9740, 9755, 9780,
-     9872, 9878, 9892, 9741, 9901, 9745, 9984, 2027, 9910,    0,
-     9727, 2008, 9937, 2006, 9918, 9944,10008, 9971,10041, 9734,
-     9735,10052,10063, 9759, 9770, 9851, 9877, 9774, 1995, 3301,
-     9752, 9876, 9872, 9898, 9897, 1992, 3404, 9795, 9774, 9828,
-    10038, 3410, 2146,10020,10119, 9813,10105, 2057,10199, 9847,
-     9874, 9863, 9918, 9917, 1982, 3417, 1975, 9921, 1968, 9942,
-    10134, 9944, 9974, 9989, 9972,10022,10008,10056,10060,10043,
-
-    10051,10054,10134,10132,10119,10136,10139,10129,10128,10117,
-    10135,10123, 1932, 3439,10131,10128,10142,10179,10191,10147,
-    10149,10150,10209,10210,10211,10213,10201, 1955,10215,    0,
-        0,10212,    0,    0,    0,10243,    0, 1952,10245,10258,
-    10258,10269,10265,10252,10357,10264,10318,10363,10372,10265,
-    10386,10392, 1915,10421,10431,10450,10459,10479,10489,10491,
-    10510,10539,10558,10577,10266,10278,10607,10333,10334,10348,
-    10398,10377, 3453, 2226,10465,10358,10421,10448,10464, 3581,
-     2354,10508,10384,10370,10471,10466,10529,10651,10411, 1912,
-    10422,10439, 1906, 3600,10472,10499,10482,10488, 3658, 2443,
-
-    10654,10493,10493,10497,10502,10532,10531,10552, 7702,10564,
-    10565,10580,10569,10563,10582,10628,10645, 8003,10649,10627,
-    15602,10647,10628,10633,10650,10644,10662, 3697, 3059,10716,
-    10632,10673,10703,10704,10711,10712,10641,10657,10692,10679,
-    10688,10695,10703, 8526, 1904,10729,10754,10846,15602,10852,
-    10861,10868,10884,10914,10891,10951,    0,10967,10974,10981,
-    10990,10997,11004,11013,11017,11028,11048,11081,11059,10709,
-    10308,11109,10700,10700,10701,10724,10725,10959,10765, 1872,
-    10749,10751,10851,11044,11092,10769, 1838,10767,10783,10829,
-    10853,11075, 1835,10789,15602, 3710, 3078,11154,10791,10810,
-
-    10821,11158,11176,10844, 1808,10849,10859,10873,10859,10881,
-    10882,10897, 8173, 1800,10921,10961,10985,10976,10992,10998,
-    10991,10988,11179, 1779,11000,11008,10995,11237,11011,10999,
-    11014,11153,11208,11224,11065, 1754,11232,11253,11171,11066,
-    11152,11143,    0,    0,11151,11160,    0,11157,11229,11326,
-     1739,11166,11409, 8649,11345,11359,11365,11374,11381,11423,
-    11432,11452,11459,11331,11437,11462,11180,11274,11247, 1713,
-    11554,11226,11564, 1705,11186,11223,11567, 1702,11192,11214,
-    11229,11212,11342,11225,11570,11481,11293, 1698,11313,11338,
-    11348,11575, 1677,11376,11392,11380,11412,11392,11413, 8353,
-
-     8712, 1703,11416, 1690,11403, 9376,11435,11452,15602,11442,
-    11453,11478,11461,11465,11488,11524,11495,11530,11546,11554,
-    11551,11540,11552,11553,15602,11558,11546,11595, 1657,11562,
-    11577,11605,11648,11576,    0,11553,11559,11674,11559,11557,
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-    11718,11640, 1599,11759,11706,11777,11647,11672,11679,11684,
-    11692,11709,11701,11718,11705, 9379,11790, 1579,11734,11734,
-    11764, 1607,11756,11777,11768,11793, 1568,11781,10685, 1531,
-    11123, 1527,11797,11823,11794,15602,11836, 1514,11805, 1504,
-    11809,11812,15602,11806,11799,11807,11816,11810,11804,11807,
-
-    11806,11810,15602,11831,11832,11818,11816,15602,11818,11839,
-    11856,11917,11819,    0,11893,11823, 1496,11832, 1464,11899,
-    15602, 1460,11906,11933,11918,11950,11825, 1457,11955,15602,
-     1448,11895,11895,11902,11906,11972,11917,11919,11935,11976,
-     1438,11923,11920,11941,11942,12010, 1342,12019, 1333,11947,
-    12022,11957,12026, 1290,11962,11993,11989,12000,12000,11994,
-    12005,11997,12011,12005,12006,15602,12007,12003,12005,12006,
-    12024,15602,15602,12050,12000,12028,12062,12020,12031,12032,
-    12049,12120,12071,12061,12072,12065,12055, 1284,12141, 1265,
-    12066,12103,12087,12147,12092,12117,12118,12167, 1262,12125,
-
-    12171,12178, 1255,12114,12126,12186, 1244,12128,12140,12159,
-    15602,12146,12165,12166,12156,12158,12158,12170,12176,15602,
-    12164,12163,12180,12177,15602,12182,12210, 1220,12188,12185,
-    12176,12194,12198,15602,12241,12199,12208,12205,12219,12232,
-    12228,12297, 1214, 1229,  892,12251,12258,12300,12279,12258,
-      880,12269,12264,12281,12268,12263,12278,12286,15602,12273,
-    12284,12274,12290,12289,12278,12273,12281,15602,12287,15602,
-    12306,12294,    0,12290,12305,12292,12301,12291,12295,12297,
-    12314,  703,  872,12326,12333,  898,  876,12336,12329,12330,
-    12343,12375,12351,12340,15602,12344,15602,12343,15602,12344,
-
-    15602,12374,12368,12337,12371,12381,12373,15602,12385,12377,
-    15602,12378,15602,  816,12385,12388,12391,12392,12386,12407,
-    12448,12395,12451,  694,15602,12399,12406,15602,12412,12418,
-    15602,12419,  720,12420,12429,15602,12415,12422,12430,12439,
-    12441,12477,  717,12480,  666,12427,12439,15602,12435,15602,
-    12444,12446,12453,15602,12446,12455,12452,12471,12472,12473,
-    12471,12467,12469,12465,12472,12467,12483,12542,12474,12491,
-    12492,12494,12485,12487,15602,12511,12498,12555,  662,12564,
-     2594,  497,  478,12510,  506,  493,12519,12521,15602,12506,
-    12535,15602,  445,12524,12536,12530,12529,12523,15602,12545,
-
-    12548,12537,12542,15602,12579,12556,12536,12549,12552,12594,
-      448,12547,12606,12547,12543,15602,12566,12610,12558,12561,
-    12593,12586,12598,12578,12631,15602,12715,12734,12753,12772,
-    12791,12810,12829,12848,12867,12886,12905,12924,12943,12962,
-    12981,13000,13016,13035,13050,13065,13080,13089,13104,13113,
-    13130,13139,13152,13167,13182,13197,13206,13217,13223,13234,
-    13253,13272,13291,13310,13329,13348,13367,13382,13391,13408,
-    13427,13442,13451,13465,13474,13490,13505,13514,13533,13552,
-    13568,13577,13593,13612,13631,13646,13655,13667,13676,13688,
-    13697,13709,13718,13733,13742,13755,13764,13776,13785,13797,
-
-    13806,13818,13827,13838,13844,13855,13874,13893,13912,13931,
-    13950,13969,13988,14007,14026,14041,14050,14066,14085,14104,
-    14123,14138,14147,14159,14168,14184,14203,14222,14237,14246,
-    14262,14281,14297,14316,14335,14350,14369,14384,14399,14414,
-    14429,14445,14460,14475,14490,14504,14510,14521,14540,14559,
-    14578,14597,14616,14631,14650,14669,14688,14707,14722,14737,
-    14756,14775,14794,14809,14828,14847,14866,14885,14900,14915,
-    14930,14945,14959,14965,14976,14995,15014,15033,15052,15067,
-    15086,15105,15124,15139,15154,15173,15192,15207,15226,15245,
-    15263,15278,15293,15308,15322,15328,15339,15358,15377,15392,
-
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+        0,    0,   92,    0,  182,  183,  195,    0,  287,    0,
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+     1721, 1729,  669, 1738, 4092,15625,15625, 1738,15625,  494,
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+      499,  910, 2308, 4011,    0, 4075,    0, 4074,15625, 1998,
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+    15625, 2527,15625,15625, 2687, 2737, 2774, 2786, 3844, 2792,
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+     2036, 1649, 2428, 2165, 1748, 2007, 2768, 2329, 1931, 3367,
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+    15625,15625, 1439,15625,15625,    0, 2460, 3500,15625, 3493,
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+     5139, 5145, 5151, 3348, 5157, 3342, 5160, 5171, 5182, 2003,
+
+     2626, 3271,    0, 5274, 5366, 3267,    0, 5388,    0, 3313,
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+
+     2479, 3155, 3340, 3859, 3634, 3699, 2478, 3956, 3247, 4073,
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+     5115, 5165, 5477, 5611, 6353, 6072, 5373, 5479, 5615, 5700,
+
+     5400, 5424, 5401, 5698, 5447, 5614, 6387, 5763, 5616, 5699,
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+
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+     7299, 7006, 7049, 6975, 7015, 7033, 7081, 7074, 7093, 7088,
+     7097, 7100, 7118, 7121, 7106, 7149, 7164, 7170, 7188, 7196,
+     7231, 7235, 7203, 7266, 7246, 7238, 7261, 7242, 7279, 7309,
+     7324, 7331, 7271, 7354, 7334, 7364, 7395, 7357, 7369, 7399,
+
+     7406, 7405, 7446, 7416, 7432, 7458, 7463, 7466, 7477, 7481,
+     7488, 7493, 7498, 7504, 7508, 6755, 6752, 6758, 6764, 6764,
+     6818, 6827, 2765, 7590, 7547, 7528, 7517, 7554, 7520, 7582,
+     7524, 7666, 7672, 7575, 7675, 7678, 7639, 7602, 7610, 7684,
+     7696, 7708, 2817, 7686, 7698, 7710, 7750, 7786, 7797,15625,
+     7874, 7951, 6948, 6941, 6957, 6949, 7400, 7505, 7048, 7122,
+     7886, 7731, 6835, 6847, 2778, 6888, 2777, 6876, 6918, 6956,
+     2767, 7028, 2766, 7022, 7103, 7097, 7115, 2760,    0, 2803,
+     7721, 2793, 1369, 2789, 7741, 2781, 1444, 2758, 7842, 2751,
+      901, 7136, 7138, 7809, 7926, 8043, 2736, 8129, 7914, 8106,
+
+     8117,15625, 7186, 7933, 8150, 8176, 2729, 7643, 7887, 7660,
+     7286,15625, 2728, 7673, 8253, 8146, 8266, 8216, 7862, 7826,
+     8141, 7848, 8245, 8248, 7851, 8275, 8283, 8294, 7910, 8290,
+     7857, 8301, 8304, 8321, 8351, 8331, 8138, 8359, 8160, 8170,
+     7195, 7213, 2651, 8376, 8335, 8379, 2712, 8387, 8386, 8367,
+     8163, 8404, 7237, 2618, 8417, 8422, 8456, 8449, 8413, 8453,
+     8480, 8506, 8486, 8489, 8495, 8499, 8516, 7471, 7321, 7356,
+     7364, 7379, 2644, 7380, 2643, 7409, 7667, 7420, 7503, 7684,
+     7517, 7571, 7595, 7601, 7590, 7667, 7693, 7696, 2608, 8523,
+     8538, 8546, 8562, 8573, 8549, 8577, 8581, 8593, 8599, 8608,
+
+     2672, 8610, 8621, 8640, 8651, 8662, 7876, 8365, 7697, 7891,
+     7793, 7884, 7794, 8377, 7875, 7892, 8727, 7951, 7955, 7950,
+        0, 8398, 2600, 7971,    0, 8107,    0, 8114, 8195, 8248,
+     8258, 2594, 8272, 8281, 8315, 8715, 8762, 8368, 2548, 8768,
+     8820,    0,    0, 8826, 8383, 8903, 2543,    0, 8995,    0,
+     8854, 8633, 8803, 8859, 8881,15625, 8977, 9004, 9026, 2607,
+     8589, 8602, 8422, 8449, 2602, 8615, 8846, 8413, 2520, 8675,
+     8834, 8684, 8776, 8840, 9021, 8757, 8788, 8898, 2570, 9112,
+     9077, 8936, 8956, 9095, 9120, 9129, 9071, 9054, 2550, 9163,
+     8490, 8493, 9123, 9136, 2475, 1255, 8972, 9024, 9139, 8517,
+
+     9142, 8535, 2474, 9145, 9165, 8549, 2459, 9153, 9188, 9195,
+     9235, 2524, 9233, 8566, 8565, 8561, 8574, 8574, 8599, 8599,
+     8600, 8600, 8608, 8613, 8618, 8631, 8714, 8738, 8735, 8786,
+     8794, 8807, 8818, 8825, 8835, 8840, 8851, 8843, 8842, 9207,
+     9227, 9263, 9251, 2513, 9281, 9257, 9292, 9305, 2483, 9307,
+     9318, 9343, 9144, 8899, 9248, 9194, 9285, 9289, 9296, 9297,
+     9309, 9364, 8889, 2427, 8993, 8994, 9022, 9146, 9175, 9218,
+     9242, 9237, 9291, 9297, 9288, 9313, 9300, 9315, 9375, 9466,
+     9472, 9481, 9318, 9487, 9321, 9569, 2390, 9502,    0, 9309,
+     2389, 9508, 2377, 9515, 9526, 9551, 9589, 9626, 2433, 9479,
+
+     9503, 9332, 2422, 9485, 9565, 9345, 9642, 9662, 9665, 9549,
+     2353, 1283, 9415, 9685, 9680, 9688, 9701, 2352, 1517, 9360,
+     9393, 9693, 9725, 1674, 1531, 9733, 9738, 9394, 9488, 9756,
+     2413, 9773, 9486, 9435, 9775, 9496, 9519, 9505, 2332, 1745,
+     2358, 9506, 2340, 9549, 9696, 9551, 9577, 9671, 9676, 9695,
+     9732, 9690, 9719, 9737, 9720, 9737, 9747, 9758, 9758, 9746,
+     9756, 9775, 9776, 9767, 9766, 9768, 9807, 9838, 9841, 2299,
+     1756, 9844, 9848, 2351, 9789, 9821, 9850, 9802, 9796, 9797,
+     9805, 9806, 9830, 9859, 9831, 9832, 9861, 2311, 9835,    0,
+        0, 9847, 9860,    0,    0,    0, 9855,    0, 2301, 9861,
+
+     9863, 9888, 9899, 9882, 9973, 9894, 9979, 9988,10005, 9919,
+    10015,10032, 2270,10050,10065,10072,10079,10098,10107,10110,
+    10129,10145,10179,10165, 2334, 9986,10108, 2324,10100,10256,
+     9911,10021,10141,10202,10093, 1835, 1591,10275,10238,10278,
+    10284,10287, 1838, 1619,10291, 9938, 9931,10294,10297,10300,
+    10307, 9964, 2256,10321, 9950, 9989, 2252, 1882,10015,10328,
+    10035,10076,10082, 2007, 1656,10344,10086,10087,10094,10101,
+    10114,10118,10114,10338,10129,10116,10133,10138,10206,10247,
+    10262,10288,10275,10292,10352,10302,10286,15625,10306,10317,
+    10314,10319,10340,10336,10337,10382, 2124, 2080,10385,10393,
+
+     2307,10395,10370,10406,10349,10373,10382,10377,10350,10374,
+    10380, 2260,10373,10383,10376,10391,10497, 2232,10432,10523,
+    15625,10529,10538,10544,10559,10588,10607,10616,    0,10622,
+    10637,10651,10666,10681,10699,10714,10701,10716,10736,10769,
+    10747, 2230,10539,10632, 2229,10554,10846,10385,10469,10500,
+    10505,10728,10574,10412, 2163,10673,10733,10810,10757,10841,
+    10474, 2144,10477,10487,10863,10866,10763, 2123,10517,15625,
+    10527, 2189, 2302,10873,10541,10534,10573,10560,10877,10880,
+    10584, 2114,10602,10619,10639,10632,10651,10654,10664,10883,
+     2105,10685,10672,10688,10671,10692,10690,10712,10724,10731,
+
+    10805,10887, 2079,10836,10860,10851,10853,10945,10869,10855,
+    10862,10863,10948,10951,10970,10875, 2077, 2134,10957,10982,
+    11008,10902,10876,10878,10916,10869,    0,    0,10891,10900,
+    10934,10927,    0,10993,11034, 2057,10942,11036,11127,11133,
+    11142,11148,11169,11175,11205,11211,11232,11213,11234,11263,
+     2120,10976,11088, 2093,11140,11201,10957,11058, 2016,10947,
+    11289,11084, 1976,10954,10957,10995,11111,11279,10981,10977,
+    11184,11076,10994, 1973,10986,10987,11027,11054,11247, 1966,
+    11102,11137,11124,11156,11174,11195,11276,11305, 1994,11197,
+     1992,11308,11331,11188,11336,11195,11214,15625,11203,11210,
+
+    11219,11202,11203,11339,11271,11326,11292,11308,11328,11337,
+    11338,11327,11337,11338,15625,11341,11343,11374,11381, 1960,
+    11342, 2013,11362,11342,11392,11358,11379,11365,11380,    0,
+    11361,11404,11456,11390, 1938,11404,11483,11489,11468,11491,
+     1980,11479,11487, 1952,11484,11582,11425,11442,11445,11520,
+    11446,11478,11467,11529,11523,11532,11560,11585, 1881,11477,
+    15625,11479,11541, 1905,11527,11563,11554,11566, 1895,11553,
+    11605, 1849,11614, 1833,11569,11625,11566,11628, 1831,11634,
+     1809,15625,11642, 1723,11583, 1750,11594,11592,15625,11645,
+     1714,11588,11589,11602,11611,11616,11610,11613,11614,11617,
+
+    15625,11636,11637,11628,11626,11624,15625,11630, 1756,11648,
+    11667,11684,11745,11746,11631,11634,    0,11640, 1717,11647,
+    11777,11754,11765, 1741,11767,11775, 1731,11804,11862,11658,
+    11654,11677,11717,11742,11721,11723,11865,11803, 1647,11868,
+     1623,11739,11743,11756,11757,11808, 1645,11871, 1639,11786,
+    11812,11793,11879, 1598,11839,11839,11834,11856,11861,11846,
+    11857,11858,11852,11853,11865,11856,11871,11864,11866,15625,
+    11867,11863,11867,11868,11886,15625,15625,15625,11953, 1661,
+    11895,11881,11907,11886,11956,11878,11929,11939,11959,11954,
+    11976,11987, 1648,11988,11993, 1639,11992,12021,11983,11975,
+
+    12024, 1560,12038, 1557,11973,11990,12052,12012,12080,12009,
+    12057,12058,12087, 1513,12061,12090,12093, 1497,12060,12061,
+    12098, 1467,12066,12073,12080,12083,12071,12088,15625,12069,
+    12088,12091,12078,12098,12081,12081,12093,12098,15625,12086,
+    12084,12105,12105,15625,12110,12145, 1452, 1513,12114,12126,
+    12187,12161,12118,12133,    0,12162,15625,12148,12179, 1505,
+    12166,12225, 1503,12226,12270,12163,12183,12213,12208,12217,
+    12176, 1432, 1458, 1292,12207,12213,12253,12227,12228, 1412,
+    12244,12243,12261,12248,12244,12251,12257,12250,12262,12271,
+    15625,12258,12269,12259,12260,12276,12277,12266,12261,12269,
+
+    15625,12273,15625, 1436,12287,12301,12281,12362,    0,12273,
+    12291, 1392,12336,12380, 1381,12340,12398,12286,12276,12281,
+    12314,12324,12340, 2261, 1294,12363,12369, 1321, 1307,12372,
+    12366,12367,12379,12415,15625,12370,12387,12392,12380,15625,
+    12384,12379,15625,12383,15625,12384,15625,12402,12392, 1317,
+    12425,12379,12413,    0,12420, 1310,12459,12464, 1306,12467,
+    12518,15625,12422,12435,15625,15625,12435,15625, 1200,12442,
+    12451,12453,12455,12449,12471,12487,12458,12535, 1198,12459,
+    12461,15625,12487,12498,12498,15625,12509,12514,15625, 1256,
+    12465,  909,  942,12546,12551,  940,12560,12579,12530,15625,
+
+    12515,12523,12531,12537,12540,12541,  901,12582,  865,12537,
+    15625,12600,12559,15625,15625,12560,15625,15625,12562,  924,
+    12597,12612,  922,12598,12630,15625,12565,12575,12578,12597,
+    12599,12611,12609,12657,  694,12603,12605,12607,  699,12660,
+    12663,  689,12664,12625,12691,12626,12647,12650,12658,12653,
+    12658,12660,15625,12663,  678,12686,  632,12722, 2380,  492,
+      481,12671,  501,  492,12676,12680,12666,15625,12662,12687,
+    15625,  440,12675,12689,12682,12690,12685,12745,15625,12708,
+    12710,12701,12707,15625,12750,12753,  110,12723,12710,12722,
+    12725,12769,  106,12733,12722,12775,12726,12721,12743,15625,
+
+    12750,12781,12762,12745,12751,12750,12752,12770,15625,12764,
+    12777,12756,12806,15625,12889,12907,12925,12943,12961,12979,
+    12997,13015,13033,13051,13069,13087,13105,13123,13141,13159,
+    13174,13192,13206,13220,13234,13243,13257,13266,13282,13291,
+    13303,13317,13331,13345,13354,13364,13369,13379,13397,13415,
+    13433,13451,13469,13487,13505,13519,13528,13544,13562,13576,
+    13585,13598,13607,13622,13636,13645,13663,13681,13696,13705,
+    13720,13738,13756,13770,13779,13790,13799,13810,13819,13830,
+    13839,13853,13862,13874,13883,13894,13903,13914,13923,13934,
+    13943,13953,13958,13968,13986,14004,14022,14040,14058,14076,
+
+    14094,14112,14130,14144,14153,14168,14186,14204,14222,14236,
+    14245,14256,14265,14280,14298,14316,14330,14339,14354,14372,
+    14387,14405,14423,14437,14455,14469,14483,14497,14511,14526,
+    14540,14554,14568,14581,14586,14596,14614,14632,14650,14668,
+    14686,14700,14718,14736,14754,14772,14786,14800,14818,14836,
+    14854,14868,14886,14904,14922,14940,14954,14968,14982,14996,
+    15009,15014,15024,15042,15060,15078,15096,15110,15128,15146,
+    15164,15178,15192,15210,15228,15242,15260,15278,15292,15306,
+    15320,15334,15347,15352,15362,15380,15398,15412,15426,15444,
+    15462,15480,15498,15516,15534,15552,15570,15588,15606
+
     } ;
 
-static yyconst flex_int16_t yy_def[2511] =
+static yyconst flex_int16_t yy_def[2700] =
     {   0,
-     2326,    1, 2326,    3, 2327, 2327, 2326,    7, 2326,    9,
-     2326,   11, 2328, 2328, 2329, 2329, 2330, 2330, 2326,   19,
-     2330, 2330, 2331, 2331, 2332, 2332, 2333, 2333, 2334, 2334,
-     2335, 2335, 2336, 2336, 2337, 2337, 2326,   37, 2338, 2338,
-     2339, 2339, 2326,   43, 2326,   45, 2340, 2340, 2326,   49,
-     2341, 2341, 2342, 2342, 2330, 2330, 2326, 2326, 2326, 2326,
-     2326, 2343, 2344, 2345, 2346, 2326, 2326, 2326, 2326, 2326,
-     2326, 2345, 2326,   72,   72,   72,   72,   72,   72,   72,
-       72,   72,   72,   72,   72,   72,   72,   72,   72,   72,
-       72,   72,   72,   72,   72,   72, 2347, 2345, 2345, 2345,
-
-     2348, 2345, 2326, 2326, 2326, 2349, 2326, 2326, 2326, 2349,
-     2349, 2349, 2349, 2349, 2349, 2349, 2349, 2349, 2349, 2350,
-     2349, 2326, 2326, 2326, 2326, 2326, 2351, 2351, 2351, 2326,
-      129,  129, 2326,  129,  129,  129,  129,  129,  129,  129,
-     2351,  141,  141, 2352,  141, 2326, 2326, 2353, 2354, 2355,
-     2326, 2354, 2354, 2356, 2354, 2354, 2354, 2357, 2354, 2326,
-     2326, 2326, 2326, 2358, 2326, 2326, 2358, 2326, 2358, 2326,
-     2326, 2358, 2358, 2358, 2358, 2358, 2326, 2326, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326, 2326, 2359, 2326, 2326, 2326,
-
-     2359, 2326, 2359, 2359, 2359, 2359, 2359, 2359, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-     2360, 2326, 2361, 2362, 2326, 2363, 2326, 2326, 2364, 2365,
-     2326, 2366, 2326, 2326, 2326, 2326, 2326, 2367, 2368, 2326,
-     2326, 2326, 2326, 2326, 2368, 2368,  256,  256,  256, 2326,
-     2368, 2368, 2368, 2369, 2368, 2326, 2326, 2326, 2326, 2326,
-     2326, 2326, 2370, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-     2326, 2326, 2326, 2326, 2371, 2372, 2326, 2326, 2326, 2326,
-     2372, 2372, 2372, 2372, 2372, 2372, 2373, 2372, 2326, 2326,
-
-     2374, 2326, 2326, 2374, 2374, 2374, 2374, 2375, 2374, 2326,
-     2326, 2326, 2326, 2326, 2326, 2326, 2376, 2377, 2326, 2326,
-     2326, 2326, 2326, 2377, 2326, 2326, 2326,  324,  324,  324,
-     2326, 2377, 2377, 2377, 2378, 2377, 2326, 2326, 2326, 2326,
-     2379, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2380,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-     2326, 2381, 2381, 2381, 2381, 2382, 2381, 2326, 2383, 2384,
-     2384,  371,  371, 2385,  371, 2383, 2386, 2386, 2386, 2386,
-     2387, 2386, 2326, 2388, 2326, 2388, 2388, 2388, 2389, 2388,
-     2326, 2326, 2326, 2326, 2326, 2326, 2386,  397,  397,  397,
-
-      397,  397,  397,  397,  397,  397,  397,  397,  397,  397,
-      397,  397,  397,  397,  397,  397,  397,  397,  397,  397,
-      397,  397,  397,  397,  397,  397,  397,  397,  397,  397,
-      397,  397,  397,  397,  397,  397,  397,  397,  397,  397,
-      397,  397,  397,  397,  397,  397,  397,  397,  397,  397,
-      397,  397,  397,  397, 2390, 2326, 2390, 2390, 2390, 2391,
-     2390, 2326, 2326,  397, 2326, 2326, 2326, 2392, 2392, 2392,
-     2392, 2393, 2392, 2326, 2326, 2326, 2326, 2392, 2392, 2392,
-     2392, 2392, 2392, 2392, 2326, 2392, 2326, 2326, 2326, 2326,
-     2394, 2394,  492, 2326,  492,  492,  492,  492,  492,  492,
-
-     2394,  501,  501, 2395,  501, 2326,  501, 2326, 2326,  492,
-      492,  492,  492,  492,  492,  492,  492,  492,  492,  492,
-     2326,  492, 2326, 2396, 2396, 2396, 2396, 2397, 2396, 2326,
-     2398, 2398, 2398, 2398, 2399, 2398, 2326, 2400, 2326, 2400,
-     2400, 2400, 2401, 2400, 2326, 2326, 2326, 2398, 2398, 2402,
-     2326, 2402, 2402, 2402, 2403, 2402, 2326, 2326, 2398, 2404,
-     2326, 2326, 2404, 2404, 2404, 2404, 2404, 2404, 2404, 2404,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2405,
-     2405, 2405, 2326, 2326, 2405, 2405, 2405, 2405, 2405, 2405,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-
-     2326, 2326, 2326, 2406, 2326, 2407, 2326, 2326, 2326, 2326,
-     2408, 2326, 2409, 2326, 2326, 2326, 2326, 2326, 2326, 2410,
-     2326, 2326, 2326, 2411, 2326, 2412, 2326, 2326, 2326, 2413,
-     2414, 2414,  632,  632, 2415,  632, 2413, 2416, 2416, 2416,
-     2416, 2417, 2416, 2326, 2326, 2326, 2416, 2416, 2416, 2416,
-     2416, 2416, 2326, 2416, 2326, 2326, 2326, 2326, 2418, 2326,
-     2326, 2326, 2326, 2326, 2326, 2419, 2420, 2420,  668,  668,
-     2421,  668, 2419, 2422, 2422, 2422, 2422, 2423, 2422, 2326,
-     2326, 2422, 2422, 2422, 2326, 2422, 2326, 2326, 2424, 2424,
-     2424, 2424, 2425, 2424, 2326, 2424, 2326, 2424, 2326, 2326,
-
-     2326, 2426, 2427, 2427,  704,  704, 2428,  704, 2426, 2429,
-     2429, 2429, 2429, 2430, 2429, 2326, 2326, 2326, 2326, 2326,
-     2429,  721, 2326,  721,  721,  721, 2326,  721, 2326, 2326,
-     2326, 2431, 2326, 2326, 2326, 2326, 2326, 2432, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326, 2433, 2434, 2435, 2326, 2436,
-     2437, 2326, 2326, 2326, 2326, 2326, 2438, 2438, 2438, 2438,
-     2438, 2438, 2438, 2438, 2438, 2438, 2438,  767,  767,  767,
-      767,  767,  767,  767,  767,  767,  767,  767,  767,  767,
-      767,  767,  767,  767,  767,  767,  767,  767,  767,  767,
-      767,  767,  767,  767,  767,  767,  767,  767,  767,  767,
-
-      767,  767,  767,  767,  767,  767,  767,  767,  767,  767,
-      767,  767,  767,  767,  767,  767,  767,  767,  767,  767,
-      767,  767,  767,  767,  767,  767,  767,  767,  767,  767,
-      767,  767,  767,  767,  767, 2326, 2439, 2326, 2440, 2440,
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+      669, 2609,  669, 2607, 2610, 2610, 2610, 2610, 2611, 2610,
+     2514, 2514, 2610, 2610, 2610, 2514, 2610, 2514, 2514, 2612,
+     2612, 2612, 2612, 2613, 2612, 2514, 2612, 2514, 2612, 2514,
+
+     2514, 2514, 2614, 2615, 2615,  705,  705, 2616,  705, 2614,
+     2617, 2617, 2617, 2617, 2618, 2617, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2617,  724,  724,  724, 2514,  724, 2514,
+     2514, 2514, 2619, 2514, 2514, 2514, 2514, 2514, 2620, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2621, 2622, 2623, 2514,
+     2624, 2514, 2625, 2514, 2514, 2514, 2514, 2514, 2514, 2626,
+     2514, 2626, 2626, 2626,  764,  764,  764,  764,  764,  764,
+      764,  764,  764,  764,  764,  764,  764,  764,  764,  764,
+      764,  764,  764,  764,  764,  764,  764,  764,  764,  764,
+      764,  764,  764,  764,  764,  764,  764,  764,  764,  764,
+
+      764,  764,  764,  764,  764,  764,  764,  764,  764,  764,
+      764,  764,  764,  764,  764,  764,  764,  764,  764,  764,
+      764,  764,  764,  764,  764,  764,  764,  764,  764,  764,
+      764,  764,  764,  764,  764,  764,  764,  764,  764,  764,
+      764, 2514, 2627, 2514, 2514, 2628, 2628, 2628, 2628, 2628,
+     2628, 2628, 2514, 2629, 2629,  855,  855,  855,  855,  855,
+      855,  855,  855,  855,  855, 2514, 2514, 2630, 2514, 2631,
+     2632, 2632, 2514, 2633, 2514, 2634, 2634, 2634, 2634, 2634,
+     2634, 2634, 2634, 2634, 2635, 2635, 2635, 2635, 2635, 2635,
+     2635, 2635, 2635, 2514, 2636, 2636, 2514, 2514, 2637, 2637,
+
+     2514, 2514, 2638, 2638, 2514, 2639, 2640, 2641, 2514, 2514,
+     2514, 2642, 2642, 2642, 2642, 2642, 2514, 2514, 2643, 2514,
+     2514, 2644, 2645, 2646, 2514, 2647, 2647, 2647, 2514, 2648,
+     2514, 2514, 2649, 2650, 2514, 2651, 2514, 2514, 2514, 2514,
+     2514, 2514, 2652, 2514, 2652, 2652,  946, 2514, 2653, 2514,
+     2514, 2514, 2654, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2655, 2514, 2514, 2656, 2656, 2656, 2514, 2514, 2514, 2514,
+     2514, 2514, 2657, 2657,  974,  974,  974,  974,  974,  974,
+      974,  974,  974,  974,  974,  974,  974,  974,  974,  974,
+      974,  974,  974,  974,  974,  974,  974,  974,  974,  974,
+
+      974,  974,  974,  974,  974,  974,  974,  974,  974,  974,
+      974,  974,  974,  974,  974,  974,  974,  974,  974,  974,
+      974,  974,  974,  974,  974,  974,  974,  974,  974,  974,
+      974,  974,  974, 2514, 2657,  974,  974,  974,  974,  974,
+      974,  974,  974,  974,  974,  974,  974,  974,  974,  974,
+      974,  974,  974,  974,  974, 2514, 2514, 2658, 2658, 2658,
+     2658, 2658, 2658, 2658, 2659, 2659, 1066, 1066, 2514, 1066,
+     1066, 1066, 1066, 1066, 1066, 1066, 2514, 2514, 2660, 2660,
+     2514, 2661, 2661, 2661, 2661, 2661, 2661, 2661, 2661, 2661,
+     2662, 2662, 2662, 2662, 2662, 2662, 2662, 2662, 2662, 2663,
+
+     2514, 2664, 2514, 2665, 2514, 2666, 2667, 2667, 2667, 2514,
+     2514, 2668, 2668, 1113, 1113, 1113, 2514, 2669, 2669, 2669,
+     2514, 2670, 2671, 2671, 2671, 2672, 2672, 2672, 2673, 2514,
+     2674, 2514, 2675, 2675, 2675, 2514, 2514, 2514, 2514, 2514,
+     2514, 2676, 2676, 1143, 2677, 2677, 2677, 2514, 2514, 2678,
+     2678, 2678, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2679,
+     2679, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161,
+     1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161,
+     1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 2514,
+     2679, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161,
+
+     2514, 2679, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161,
+     1161, 1161, 1161, 1161, 1161, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2679, 1161, 1161, 1161, 1161, 1161,
+     1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161,
+     1161, 1161, 2514, 2680, 2680, 2680, 2680, 2680, 2680, 2514,
+     2681, 2681, 1252, 1252, 1252, 1252, 1252, 1252, 1252, 1252,
+     2682, 2682, 2683, 2683, 2683, 2683, 2683, 2683, 2683, 2683,
+     2683, 2684, 2684, 2684, 2684, 2684, 2684, 2684, 2684, 2685,
+     2685, 2685, 2685, 2686, 2686, 2686, 2686, 2687, 2687, 2687,
+     2687, 2514, 2514, 2688, 2514, 2514, 2514, 2688, 2688, 2688,
+
+     2688, 2514, 2514, 2689, 2689, 2689, 2514, 2514, 1143, 1143,
+     1143, 2514, 2514, 2514, 1161, 2514, 2679, 1161, 1161, 1161,
+     1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161,
+     1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161,
+     2514, 2514, 2514, 1161, 1161, 2514, 2514, 2679, 1161, 1161,
+     1161, 1161, 2514, 2514, 1161, 2514, 2679, 1161, 1161, 1161,
+     2514, 2679, 1161, 1161, 1161, 1161, 1161, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 1161,
+     1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161, 1161,
+
+     2514, 2680, 2680, 2680, 2680, 2680, 1252, 1252, 1252, 1252,
+     1252, 1252, 1252, 1252, 1252, 1252, 2682, 2683, 2683, 2683,
+     2683, 2683, 2683, 2683, 2683, 2683, 2684, 2684, 2684, 2684,
+     2684, 2684, 2684, 2514, 2514, 2688, 2690, 2514, 2514, 2690,
+     2690, 1296, 1296, 2690, 1296, 1296, 1446, 1446, 2691, 1446,
+     2690, 2514, 2688, 2688, 2688, 2514, 2689, 2689, 2689, 2514,
+     2514, 1143, 1143, 1143, 2514, 2514, 1161, 2514, 2514, 1161,
+     1161, 1161, 1161, 1161, 1161, 1161, 1161, 2514, 2514, 2679,
+     1161, 1161, 1161, 1161, 1161, 1161, 1161, 2514, 2514, 2679,
+     2514, 2514, 1161, 1161, 2514, 2692, 1161, 1161, 1161, 2514,
+
+     1161, 2514, 2514, 1161, 1161, 2514, 2514, 1161, 1161, 1161,
+     2514, 2514, 2679, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 1161,
+     1161, 1161, 2514, 2514, 2679, 1161, 1161, 1161, 2514, 2680,
+     2680, 2680, 1252, 1252, 1252, 1252, 1252, 1252, 1252, 1252,
+     1252, 2682, 2683, 2683, 2683, 2683, 2683, 2683, 2683, 2683,
+     2684, 2684, 2684, 2684, 2684, 2684, 2514, 2514, 2688, 2690,
+     2690, 2690, 2514, 2690, 1296, 2690, 1296, 2690, 1296, 1296,
+     1296, 2693, 2514, 2688, 2688, 2689, 2689, 2689, 2514, 2514,
+
+     1143, 1143, 2514, 2514, 1161, 2514, 1161, 1161, 1161, 1161,
+     2514, 2694, 1161, 1161, 1161, 1161, 1161, 2514, 2695, 2514,
+     2514, 1161, 1161, 2692, 2692, 2514, 1161, 2514, 2514, 2514,
+     2514, 2679, 2514, 1161, 1161, 2514, 2514, 2514, 2514, 2696,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 1161, 1161, 1161, 2514,
+     2697, 1161, 1161, 2514, 2680, 2680, 2680, 1252, 1252, 1252,
+     1252, 1252, 1252, 1252, 1252, 1252, 2682, 2683, 2683, 2683,
+     2683, 2683, 2683, 2683, 2683, 2684, 2684, 2684, 2684, 2684,
+
+     2684, 2514, 2514, 2688, 2690, 2514, 2698, 2693, 2690, 1296,
+     2690, 2690, 1446, 2693, 2693, 2698, 2693, 2693, 2693, 2688,
+     2688, 2689, 2689, 2689, 2514, 2514, 1143, 2514, 2514, 1161,
+     2514, 1161, 1161, 1161, 1161, 2694, 2694, 2514, 1161, 1161,
+     1161, 1161, 2695, 2695, 2514, 2514, 2514, 1161, 1161, 2514,
+     2514, 2514, 2514, 1161, 2514, 2514, 2514, 2699, 2514, 1161,
+     2514, 2514, 2514, 2696, 2696, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 1161, 2697, 2697, 2514, 1161,
+
+     2514, 2680, 2680, 2680, 1252, 1252, 1252, 1252, 2683, 2683,
+     2683, 2683, 2684, 2684, 2684, 2684, 2514, 2514, 2688, 2690,
+     2514, 2698, 2698, 2698, 2698, 2698, 2698, 2698, 1296, 2693,
+     2693, 2698, 2698, 2693, 2693, 2693, 2688, 2688, 2689, 2689,
+     2689, 2514, 2514, 1143, 2514, 2514, 1161, 2514, 1161, 1161,
+     1161, 2514, 2514, 2514, 2514, 1161, 1161, 1161, 2514, 2514,
+     2514, 2514, 2514, 2514, 1161, 1161, 2514, 2514, 2514, 2514,
+     2514, 2699, 2699, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 1161, 2514, 2514, 2514, 2514, 2514, 2680, 2680,
+     2680, 1252, 1252, 1252, 1252, 2683, 2683, 2683, 2683, 2684,
+     2684, 2684, 2684, 2514, 2514, 2514, 2514, 2688, 2690, 2698,
+     2698, 2698, 2698, 2693, 2698, 2693, 2693, 2688, 2689, 2689,
+     2514, 2514, 1143, 2514, 2514, 1161, 2514, 2514, 2514, 2514,
+     1161, 2514, 2514, 2514, 2514, 2514, 1161, 1161, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 1161, 2514, 2514,
+     2514, 2514, 2680, 2680, 2680, 1252, 1252, 2683, 2683, 2684,
+     2684, 2684, 2514, 2514, 2514, 2514, 2698, 2693, 2688, 2689,
+     2514, 2514, 1143, 2514, 2514, 1161, 2514, 2514, 2514, 1161,
+     2514, 2514, 2514, 1161, 1161, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2680,
+     2680, 2680, 1252, 1252, 2683, 2683, 2684, 2684, 2514, 2514,
+     2698, 2688, 2689, 2514, 2514, 1143, 2514, 2514, 1161, 2514,
+     2514, 2514, 1161, 2514, 2514, 2514, 1161, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2680, 2680, 2680, 1252, 1252, 2683, 2683, 2684, 2514, 2514,
+     2688, 2689, 2514, 2514, 1143, 2514, 2514, 1161, 2514, 2514,
+
+     2514, 2514, 2514, 2514, 2514, 2514, 1161, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2680, 2680,
+     1252, 1252, 2683, 2683, 2684, 2514, 2514, 2688, 2689, 2514,
+     2514, 1143, 2514, 2514, 1161, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+
+     2514, 2514, 2514, 2514, 2680, 2680, 1252, 1252, 2683, 2683,
+     2514, 2514, 2514, 1143, 2514, 2514, 1161, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2680, 2680, 1252, 2683, 2514, 2514, 2514, 1143, 2514, 2514,
+     1161, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2680, 2514, 2514, 2514, 1143, 2514, 2514, 1161, 2514, 2514,
+
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 1143, 2514, 2514, 1161, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     1143, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514,    0, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514
+
     } ;
 
-static yyconst flex_int16_t yy_nxt[15696] =
+static yyconst flex_int16_t yy_nxt[15718] =
     {   0,
-       58,   59,   60,   59,   61,   62,   63,   64,   65,   66,
-       66,   61,   67,   68,   69,   70,   71,   72,   72,   61,
-       61,   61,   73,   61,   74,   75,   76,   77,   78,   79,
-       80,   81,   82,   64,   83,   84,   85,   86,   87,   88,
-       89,   90,   91,   92,   93,   94,   95,   96,   64,   64,
-       58,   58,   61,   64,   97,   74,   75,   76,   77,   78,
-       79,   80,   81,   82,   64,   83,   84,   85,   86,   87,
-       88,   89,   90,   91,   92,   93,   94,   95,   96,   64,
-       64,   58,   98,   99,  100,  101,  102,  102,  102,  102,
-      102,  102,  103,  104,  104,  105,  104,  104,  104,  106,
-
-      106,  104,  107,  107,  108,  109,  104,  109,  104,  104,
-      110,  110,  104,  104,  104,  104,  104,  106,  106,  106,
-      106,  106,  111,  106,  106,  112,  106,  106,  106,  106,
-      106,  106,  106,  113,  114,  115,  106,  106,  106,  116,
-      106,  106,  106,  104,  104,  104,  106,  104,  106,  106,
-      106,  106,  106,  111,  106,  106,  112,  106,  106,  106,
-      106,  106,  106,  106,  113,  114,  115,  106,  106,  106,
-      116,  106,  106,  106,  104,  117,  118,  119,  120,  121,
-      121,  121,  121,  121,  121,  122,  124,  124,  392,  392,
-      393,  394,  394,  392,  392,  125,  125,  126,  127,  128,
-
-      127,  126,  126,  129,  129,  126,  126,  126,  130,  131,
-      126,  132,  133,  126,  129,  129,  126,  126,  126,  126,
-      126,  129,  129,  129,  134,  135,  129,  136,  129,  129,
-      129,  129,  129,  129,  129,  137,  138,  129,  139,  129,
-      140,  129,  129,  129,  129,  129,  129,  126,  126,  126,
-      129,  126,  129,  129,  129,  134,  135,  129,  136,  129,
-      129,  129,  129,  129,  129,  129,  137,  138,  129,  139,
-      129,  140,  129,  129,  129,  129,  129,  129,  126,  141,
-      142,  143,  144,  145,  145,  145,  145,  145,  145,  146,
-      147,  147,  105,  147,  147,  148,  149,  149,  150,  147,
-
-      147,  151,  147,  147,  147,  147,  147,  149,  149,  147,
-      147,  147,  147,  147,  149,  149,  149,  149,  149,  149,
-      149,  149,  149,  149,  149,  149,  149,  149,  149,  152,
-      149,  149,  149,  153,  149,  149,  149,  149,  149,  149,
-      147,  147,  147,  149,  154,  149,  149,  149,  149,  149,
-      149,  149,  149,  149,  149,  149,  149,  149,  149,  149,
-      152,  149,  149,  149,  153,  149,  149,  149,  149,  149,
-      149,  147,  155,  156,  157,  158,  159,  159,  159,  159,
-      159,  159,  160,  161,  162,  163,  162,  161,  161,  161,
-      164,  165,  161,  161,  166,  167,  168,  169,  170,  161,
-
-      164,  164,  161,  161,  171,  161,  161,  164,  164,  164,
-      172,  173,  164,  174,  164,  164,  164,  164,  164,  164,
-      164,  164,  164,  164,  175,  164,  176,  164,  164,  164,
-      164,  164,  164,  161,  161,  161,  164,  161,  164,  164,
-      164,  172,  173,  164,  174,  164,  164,  164,  164,  164,
-      164,  164,  164,  164,  164,  175,  164,  176,  164,  164,
-      164,  164,  164,  164,  161,  161,  177,  161,  178,  161,
-      161,  161,  161,  161,  161,  161,  180,  181,  180,  232,
-      180,  181,  180,  182,  232,  235,  183,  182,  184,  235,
-      183,  238,  184,  188,  189,  188,  238,  188,  189,  188,
-
-      190,  105,  105,  191,  190,  190,  105,  191,  105,  190,
-      463,  463,  475,  356,  477,  477,  510,  476,  356,  485,
-      485,  357,  233,  511,  268,  268,  357,  233,  236,  489,
-      358, 2310,  236, 2292,  490,  358,  312,  239,  312,  512,
-      508,  513,  239,  514,  356,  509, 2296,  510,  546,  356,
-      521,  521,  357,  547,  511,  268,  268,  357,  185, 2295,
-      186,  358,  185,  561,  186, 2281,  358,  312,  562,  312,
-      512,  573,  513,  577,  514,  192,  574,  193,  578,  192,
-     2280,  193,  194,  195,  196,  195,  194,  194,  194,  197,
-      198,  199,  199,  200,  201,  202,  203,  194,  194,  204,
-
-      204,  194,  194,  199,  194,  194,  204,  204,  204,  204,
-      204,  204,  205,  204,  204,  204,  204,  204,  204,  204,
-      204,  206,  204,  204,  207,  208,  204,  204,  204,  204,
-      204,  204,  194,  194,  194,  204,  194,  204,  204,  204,
-      204,  204,  204,  205,  204,  204,  204,  204,  204,  204,
-      204,  204,  206,  204,  204,  207,  208,  204,  204,  204,
-      204,  204,  204,  199,  194,  209,  194,  210,  194,  194,
-      194,  194,  194,  194,  194,  211,  211,  211,  211,  211,
-      211,  515, 2326,  212,  377,  377,  212,  216,  217,  216,
-      521,  521,  218,  516,  219,  427,  220,  221,  216,  217,
-
-      216,  558,  558,  218, 1256,  219, 1260,  220,  221,  225,
-      226,  225,  515, 2213,  227, 2291,  227,  227,  227,  228,
-      225,  226,  225,  563,  516,  227,  427,  227,  227,  227,
-      228,  378,  379,  380,  381,  382,  382,  382,  382,  382,
-      382,  383, 2326,  564,  377,  377,  558,  558, 2326, 2244,
-      377,  377,  565,  566,  563,  409,  585,  213,  586,  214,
-      213,  404,  214,  581,  582,  405,  656,  583,  410,  222,
-     2260,  223,  584, 2252,  564,  592,  593, 2223,  594, 1255,
-      222, 1259,  223,  565,  566,  597,  409,  585, 2214,  586,
-      598,  229,  404,  230,  581,  582,  405,  656,  601,  410,
-
-      602,  602,  229,  602,  230,  244,  245,  246,  245,  244,
-      247,  248,  249,  250,  251,  244,  244,  244,  244,  252,
-      244,  244,  249,  249,  244,  253,  244,  244,  254,  255,
-      249,  249,  249,  249,  256,  257,  249,  249,  249,  249,
-      258,  249,  249,  249,  249,  249,  259,  249,  249,  249,
-      249,  249,  249,  249,  249,  244,  244,  244,  249,  260,
-      255,  249,  249,  249,  249,  256,  257,  249,  249,  249,
-      249,  258,  249,  249,  249,  249,  249,  259,  249,  249,
-      249,  249,  249,  249,  249,  249,  244,  261,  262,  263,
-      264,  265,  265,  265,  265,  265,  265,  266,  270,  271,
-
-      270, 2182,  272,  273, 2213,  274,  275,  276,  359,  359,
-      359,  277,  270,  271,  270,  652,  272,  273,  638,  274,
-      275,  276,  463,  463, 2326,  277,  377,  377, 2326, 2218,
-      377,  377, 2326,  406,  377,  377,  661,  377,  587,  278,
-      589,  377,  699,  588,  734,  377,  652,  407,  735,  638,
-      408, 2217,  413,  278,  411,  414,  740,  590,  415, 2182,
-      412,  653,  653, 2148,  406,  662,  663,  661,  377,  587,
-      278,  589,  377,  699,  588,  734,  377, 2183,  407,  735,
-      279,  408,  280,  413,  278,  411,  414,  740,  590,  415,
-      360,  412,  465,  466,  279,  467,  280,  281,  282,  283,
-
-      282,  281,  284,  285,  286,  287,  288,  289,  281,  281,
-      281,  290,  281,  281,  286,  286,  281,  281,  281,  281,
-      281,  286,  286,  286,  286,  286,  291,  286,  286,  286,
-      286,  286,  292,  286,  286,  286,  286,  286,  293,  286,
-      286,  286,  286,  286,  286,  286,  286,  281,  281,  281,
-      286,  281,  286,  286,  286,  286,  286,  291,  286,  286,
-      286,  286,  286,  292,  286,  286,  286,  286,  286,  293,
-      286,  286,  286,  286,  286,  286,  286,  286,  281,  294,
-      295,  296,  297,  298,  298,  298,  298,  298,  298,  299,
-      105,  105,  105,  105,  105,  300,  301,  301,  302,  105,
-
-      105,  105,  105,  105,  105,  105,  105,  301,  301,  105,
-      105,  105,  105,  303,  301,  301,  301,  301,  301,  304,
-      301,  301,  301,  301,  301,  301,  301,  301,  301,  301,
-      301,  301,  301,  301,  301,  301,  301,  301,  301,  301,
-      105,  105,  105,  301,  105,  301,  301,  301,  301,  301,
-      304,  301,  301,  301,  301,  301,  301,  301,  301,  301,
-      301,  301,  301,  301,  301,  301,  301,  301,  301,  301,
-      301,  105,  305,  306,  307,  308,  309,  309,  309,  309,
-      309,  309,  310,  313,  314,  315,  314,  313,  316,  317,
-      318,  319,  313,  313,  313,  320,  321,  322,  323,  313,
-
-      324,  324,  313,  325,  326,  313,  327,  328,  318,  318,
-      318,  318,  318,  329,  318,  318,  318,  318,  318,  318,
-      318,  318,  318,  318,  318,  330,  318,  318,  318,  318,
-      318,  318,  318,  313,  313,  313,  318,  331,  328,  318,
-      318,  318,  318,  318,  329,  318,  318,  318,  318,  318,
-      318,  318,  318,  318,  318,  318,  330,  318,  318,  318,
-      318,  318,  318,  318,  313,  332,  333,  334,  335,  336,
-      336,  336,  336,  336,  336,  337,  339,  340,  339,  653,
-      653,  341, 2181,  339,  340,  339,  685,  685,  341,  342,
-      359,  359,  359,  697,  697,  343,  342, 2142,  628,  628,
-
-      628,  741,  343, 2127,  344,  348,  349,  348,  697,  697,
-      350,  344,  348,  349,  348,  717,  717,  350,  351,  361,
-      742,  345,  485,  485,  352,  351,  718, 2106,  345,  717,
-      717,  352,  741,  353, 2326,  344,  377,  377, 2101,  354,
-      353, 2326,  344,  377,  377, 2098,  354,  377, 2089,  655,
-      450,  742,  345,  743,  377,  719,  719,  385,  346,  345,
-      416,  628,  628,  628,  353,  346, 2326, 2087,  377,  377,
-      354,  353,  360, 2053,  657,  657,  657,  354,  377,  377,
-      629,  450,  744,  423,  743,  377, 2104,  355,  657,  657,
-      657,  416,  487,  488,  355, 2100,  363,  364,  365,  366,
-
-      367,  367,  367,  367,  367,  367,  368,  369,  369, 1264,
-      377,  369,  369,  744,  423,  369,  369,  369,  369,  369,
-      369,  369,  369,  369,  727,  727,  369,  369,  369,  369,
-      369,  386,  387,  388,  389,  390,  390,  390,  390,  390,
-      390,  391, 2326,  629,  377,  377,  664,  664,  664,  745,
-      745,  454,  664,  664,  664,  377,  658,  369,  369,  369,
-      475,  369,  727,  727, 2326,  476,  377,  377,  745,  745,
-      658,  489, 2326,  417,  377,  377,  490,  418,  747,  747,
-      511,  419,  454,  463,  463,  377,  377, 1263,  369,  371,
-      372,  373,  374,  375,  375,  375,  375,  375,  375,  376,
-
-      396,  437,  397,  397,  417,  463,  463, 2326,  418,  377,
-      377,  511,  419,  398,  749,  749,  377,  749,  749,  420,
-      377, 2040,  421,  512,  650,  392,  392,  638,  665,  422,
-      638, 2029,  437,  508,  665,  729,  836,  836,  509, 2326,
-     1954,  377,  377, 2020,  398,  836,  836, 1943,  424, 2080,
-      420,  377,  377,  421,  512,  650,  425, 2058,  638,  513,
-      422,  638,  426,  685,  685,  485,  485,  378,  379,  380,
-      381,  382,  382,  382,  382,  382,  382,  383, 2326,  424,
-      377,  377, 2326,  377,  377,  377, 2326,  425,  377,  377,
-      513,  377,  429,  426,  515,  377,  430, 1987,  399,  377,
-
-      400,  700,  700,  700,  431,  401,  402,  403,  432,  428,
-     1981,  700,  700,  700, 1979, 2326,  516,  377,  377,  485,
-      485, 2050,  377,  429,  433,  515,  377,  430,  377,  399,
-      377,  400,  434,  687,  688,  431,  401,  402,  403,  432,
-      428,  435,  846, 2326,  436,  377,  377,  516, 2326,  546,
-      377,  377,  477,  477,  547,  433,  438,  521,  521,  377,
-     2045,  440, 1967,  434,  441, 2326,  439,  377,  377,  847,
-      442,  848,  435,  846,  444,  436,  443, 2326,  377,  710,
-      710,  445, 1951,  701,  521,  521, 2326,  438,  377,  377,
-      710,  446,  440,  701,  849,  441,  850,  439,  851,  377,
-
-      847,  442,  848,  858,  858,  444,  724,  443,  447,  377,
-      448,  852,  445,  449, 1938, 2326,  853,  377,  377,  858,
-      858,  710,  446,  854,  451,  849,  855,  850,  377,  851,
-      377,  452,  453,  561, 2326, 2326,  456,  724,  562,  447,
-     1928,  448,  852, 1985,  449,  463,  463,  853,  618,  618,
-      618,  377,  619,  620,  854,  451, 1983,  855,  856,  377,
-     1892,  621,  452,  453,  457,  458,  459,  460,  461,  461,
-      461,  461,  461,  461,  462, 2326, 2326,  867,  377,  377,
-      377, 1886,  377, 2326, 2326, 1877,  463,  463, 1873,  856,
-     2326, 2326,  377,  868,  463,  463, 1868,  730,  730,  730,
-
-      377,  463,  463,  478,  478,  558,  558,  377,  867,  377,
-      558,  558, 2326,  573,  710,  710,  860,  860,  574,  377,
-      377,  377, 1849,  377,  868,  710,  869,  377,  377,  377,
-      622,  377,  725,  870,  377,  377,  377, 1834,  377,  469,
-      470,  471,  472,  473,  473,  473,  473,  473,  473,  474,
-      377,  479,  359,  730,  730,  730,  710,  869,  377,  480,
-      860,  860, 1823,  725,  870,  377,  864,  864,  469,  470,
-      471,  472,  473,  473,  473,  473,  473,  473,  474,  731,
-      864,  864,  479, 1813,  481,  482,  871,  736,  736,  736,
-      480, 1803,  469,  470,  471,  472,  473,  473,  473,  473,
-
-      473,  473,  474,  872,  469,  470,  471,  472,  473,  473,
-      473,  473,  473,  473,  474,  481,  482,  871, 1792,  483,
-      484, 1785,  469,  470,  471,  472,  473,  473,  473,  473,
-      473,  473,  474,  577,  872,  731,  895,  895,  578,  469,
-      470,  471,  472,  473,  473,  473,  473,  473,  473,  474,
-      483,  484,  736,  736,  736, 1778,  873, 1852,  469,  470,
-      471,  472,  473,  473,  473,  473,  473,  473,  474,  737,
-      653,  653,  653,  653,  469,  470,  471,  472,  473,  473,
-      473,  473,  473,  473,  474, 2326, 2326,  873, 2326, 1577,
-      710,  710, 2326, 2326,  874, 1688,  485,  485, 1539, 2326,
-
-     2326,  726,  468,  485,  485, 1741, 2326, 2326, 1737,  468,
-      485,  485,  359,  359,  359, 1497,  468,  485,  485,  583,
-      523, 1704,  517,  468,  584,  874,  518,  875, 1702,  468,
-      468,  468,  726,  468,  737,  519,  468,  468,  468,  520,
-      468,  876,  567,  468,  468,  468,  568,  468,  877,  878,
-      468,  468,  468,  517,  468,  569,  879,  518,  875,  570,
-      468,  880,  751,  751,  751, 1468,  519,  468, 1694, 2326,
-      520,  597,  876,  567,  468, 1449,  598,  568, 1439,  877,
-      878,  468,  491,  491,  491,  881,  569,  879,  882, 1543,
-      570, 1653,  880,  493,  360,  493,  494,  525,  526,  527,
-
-      528,  529,  529,  529,  529,  529,  529,  530,  495,  496,
-     1653,  497,  394,  394, 1629,  539,  881,  909, 1614,  882,
-      498, 1586,  499,  753,  500,  532,  533,  534,  535,  536,
-      536,  536,  536,  536,  536,  537,  605,  605,  605,  495,
-      496,  606,  497,  607,  752,  612,  612,  612,  909,  608,
-      613,  498,  614,  499,  753,  500,  601, 1573,  615,  913,
-      913,  602, 1687,  501,  502,  503,  504,  505,  505,  505,
-      505,  505,  505,  506,  491,  491,  491, 1319,  912,  685,
-      685,  685,  685,  697,  697,  493, 1567,  493,  494,  540,
-      541,  542,  543,  544,  544,  544,  544,  544,  544,  545,
-
-      495,  496,  923,  497,  941,  651,  754,  754, 2326,  912,
-      377,  377,  498,  942,  499,  945,  500,  755,  609,  638,
-      946,  377,  638,  548,  697,  697, 2326,  616,  377,  377,
-     1560,  495,  496,  923,  497,  941,  651, 1674,  549,  377,
-      947,  763, 1777,  498,  942,  499,  945,  500,  755, 1289,
-      638,  946,  377,  638,  548,  501,  502,  503,  504,  505,
-      505,  505,  505,  505,  505,  506, 2326, 2326, 2326,  549,
-      377,  947,  763,  924,  924,  727,  727, 2326, 1539, 2326,
-      494,  532,  533,  534,  535,  536,  536,  536,  536,  536,
-      536,  537,  551,  727,  727, 1271,  532,  533,  534,  535,
-
-      536,  536,  536,  536,  536,  536,  537,  639,  640,  641,
-      642,  643,  643,  643,  643,  643,  643,  644,  717,  717,
-      552,  553,  554,  555,  556,  556,  556,  556,  556,  556,
-      557,  675,  676,  677,  678,  679,  679,  679,  679,  679,
-      679,  680,  960,  960,  377,  377, 1203,  501,  507,  503,
-      504,  505,  505,  505,  505,  505,  505,  506, 2326, 2326,
-     2326,  468,  468, 2326, 2326, 1681,  605,  605,  605, 2326,
-     1784, 2326, 2326,  883,  521,  521, 2326, 2326, 1480, 2326,
-      492,  377,  377, 2326, 2326, 1478,  933,  558,  558,  492,
-      492, 1181,  377,  531,  558,  558,  612,  612,  612,  765,
-
-      531, 2326, 2326,  887,  934,  531,  531,  492,  492,  492,
-     1457,  492,  558,  558,  628,  628,  628,  933,  531, 1170,
-      531,  531,  531,  377,  531, 2326, 2326,  531,  531,  531,
-      765,  531,  719,  719, 1416,  934,  558,  558,  492,  638,
-      638,  647,  531,  928,  948,  531,  531,  531,  609,  531,
-      756,  531,  756, 2326, 1700,  757,  757, 1264,  531, 1802,
-     2326,  674,  674,  618,  618,  618,  377,  891, 1264,  531,
-      531,  531,  647,  531,  928,  948,  531,  949,  616,  639,
-      640,  641,  642,  643,  643,  643,  643,  643,  643,  644,
-     2326, 1260,  377,  377,  689,  689,  629,  377,  683,  760,
-
-      531,  630,  630,  377, 1065,  630,  630, 1260,  949,  630,
-      630,  630,  630,  630,  630,  630,  630,  630, 1122, 1122,
-      630,  630,  630,  630,  630, 2326, 2326,  710,  710,  683,
-      760, 1256, 2326, 2326,  377, 1065,  653,  653,  897,  897,
-      897, 1066,  638,  653,  653,  622,  362,  362, 1256,  638,
-      492,  630,  630,  630, 1395,  630,  675,  676,  677,  678,
-      679,  679,  679,  679,  679,  679,  680,  492, 1051,  638,
-      638,  638, 1066,  638, 1053, 1391,  638,  638,  638,  492,
-      638,  492,  630,  632,  633,  634,  635,  636,  636,  636,
-      636,  636,  636,  637,  648, 1067, 1055,  649,  492, 1051,
-
-      638,  657,  657,  657, 2292, 2326, 2326,  638, 1389,  628,
-      492, 1386, 2326, 2326,  370,  370,  653,  653,  384,  384,
-      898,  682,  638,  653,  653,  648, 1067, 1384,  649,  638,
-      956, 1020,  956,  492, 1134,  957,  957, 1129,  639,  640,
-      641,  642,  643,  643,  643,  643,  643,  643,  644,  638,
-      638,  638,  682,  638,  957,  957,  638,  638,  638, 1069,
-      638, 1116, 1058, 1107,  492,  675,  676,  677,  678,  679,
-      679,  679,  679,  679,  679,  680,  910,  910,  910, 2293,
-      638,  684, 1102,  658,  664,  664,  664,  638,  666,  666,
-     1069, 1268,  666,  666,  929,  929,  666,  666,  666,  666,
-
-      666,  666,  666,  666,  666,  930, 1070,  666,  666,  666,
-      666,  666,  684,  690,  691,  692,  693,  694,  694,  694,
-      694,  694,  694,  695, 1089,  675,  676,  677,  678,  679,
-      679,  679,  679,  679,  679,  680,  930, 1070,  666,  666,
-      666, 1085,  666, 2326, 2326, 1083, 2326, 1081,  377,  377,
-     2326, 2326,  957,  957,  685,  685,  959,  959,  911,  769,
-      674,  685,  685,  959,  959, 1250,  665,  674,  954,  666,
-      668,  669,  670,  671,  672,  672,  672,  672,  672,  672,
-      673,  492, 1072, 1059,  915,  915,  915,  674,  674,  674,
-      769,  674, 2326, 2326,  674,  674,  674, 1073,  674, 2326,
-
-     2326,  960,  960,  685,  685,  943,  754,  754,  696,  674,
-      685,  685,  492, 1072, 1059,  899,  674,  755,  674, 2326,
-      939,  377,  377,  926,  958,  674,  958,  664, 1073,  959,
-      959,  762,  377,  900,  901,  915,  674,  674,  674,  696,
-      674,  910, 1074,  674,  674,  674,  899,  674,  755,  690,
-      691,  692,  693,  694,  694,  694,  694,  694,  694,  695,
-     2326, 2326,  762,  377,  900,  901,  916,  674, 2326, 2326,
-      897,  697,  697, 1074,  674, 2326, 2326,  689, 1075,  697,
-      697,  893, 2326, 2326, 1076,  689,  697,  697, 2326,  893,
-      377,  377,  689,  697,  697,  455,  455,  524,  524,  689,
-
-      889,  377,  538,  538,  689,  689,  689,  889,  689, 1075,
-      764, 1077,  689,  689,  689, 1076,  689,  361, 1078,  689,
-      689,  689,  885,  689,  971, 1079,  689,  689,  689,  377,
-      689, 2326,  377,  377,  377,  689,  550,  550,  700,  700,
-      700,  764, 1077,  689,  805, 2326,  926,  926,  926, 1078,
-      689,  885,  730,  730,  730,  971, 1079,  689,  702,  702,
-      377, 1071,  702,  702,  631,  631,  702,  702,  702,  702,
-      702,  702,  702,  702,  702,  805, 1068,  702,  702,  702,
-      702,  702,  711,  712,  713,  714,  715,  715,  715,  715,
-      715,  715,  716,  751,  363,  364,  365,  366,  367,  367,
-
-      367,  367,  367,  367,  368,  939,  939,  939,  702,  702,
-      702,  736,  702, 2326, 2326,  730, 2326,  702,  377,  377,
-      701, 2326, 2326,  700,  727,  727,  667,  667,  927,  834,
-      710,  666,  727,  727,  731,  703,  703, 1080,  710,  702,
-      704,  705,  706,  707,  708,  708,  708,  708,  708,  708,
-      709,  720,  492,  721,  721, 1119, 1119,  710,  710,  710,
-      834,  710, 2326, 2326,  722,  710,  710,  710, 1080,  710,
-     1729, 1054,  664,  727,  727, 1833,  736,  736,  736,  710,
-      943,  943,  943,  492,  954,  751,  751,  940,  710, 1797,
-     2326,  657,  377,  377, 1885,  722,  710,  630,  700,  377,
-
-     2326, 2326, 1054,  377,  982, 1091,  710,  710,  710,  628,
-      710,  727,  727, 1081, 1081, 1081,  775,  710,  711,  712,
-      713,  714,  715,  715,  715,  715,  715,  715,  716, 2326,
-      377,  377,  377,  618,  377,  982, 1091,  710, 2326, 2326,
-     2326,  894,  377,  492,  710,  710,  710,  775,  710,  893,
-      745,  745, 2326, 2326, 2326,  612,  362,  761,  737, 2326,
-     2326, 2326,  944, 1052,  745,  745,  955, 1119, 1119,  890,
-      362,  745,  745,  377,  492,  710,  889,  362, 2326, 2326,
-     2326,  377,  605,  362,  362,  362,  377,  362,  761,  492,
-      745,  745, 1121, 1121, 1052, 1082,  362,  362,  362,  362,
-
-     1056,  362, 1121, 1121,  362,  362,  362,  385,  362, 1122,
-     1122,  886,  377, 2326,  362,  377,  377,  377,  885, 1092,
-      492, 2326,  778,  362,  362,  362,  377,  362,  362,  491,
-     2326, 1056, 1083, 1083, 1083,  362,  378,  379,  380,  381,
-      382,  382,  382,  382,  382,  382,  383,  369, 1093, 2326,
-     1092,  377,  377,  778,  362,  369,  369,  377,  359,  369,
-      369,  736,  377,  369,  369,  369,  369,  369,  369,  369,
-      369,  369,  774, 1100,  369,  369,  369,  369,  369, 1093,
-     1104,  386,  387,  388,  389,  390,  390,  390,  390,  390,
-      390,  391,  456,  377, 1573, 1574, 1118,  739, 1118,  730,
-
-      492, 1119, 1119,  774, 1100,  369,  369,  369,  733,  369,
-      723, 1104, 1674, 1675, 1084,  681, 1085, 1085, 1085, 1057,
-      457,  458,  459,  460,  461,  461,  461,  461,  461,  461,
-      462,  492, 1089,  897,  897,  657,  369,  371,  372,  373,
-      374,  375,  375,  375,  375,  375,  375,  376,  369,  369,
-     1057,  660,  369,  369,  369,  369,  369,  369,  369,  369,
-      369,  369,  369,  369,  369,  747,  747,  369,  369,  369,
-      369,  369,  369, 1113,  646,  369,  369,  369,  369,  369,
-      369,  369,  369,  369,  369,  369,  369,  369,  747,  747,
-      369,  369,  369,  369, 2326, 2326,  645, 2326, 1086,  377,
-
-      377, 2326, 2326,  627, 1113,  463,  463,  625, 2326, 2326,
-      377,  377,  463,  463, 1090, 1681, 1682,  785,  377,  463,
-      463, 1573, 2326,  603, 2326,  377,  377,  377, 1700, 1701,
-      600, 2326,  599,  377,  377,  787, 1123,  377,  377,  377,
-      377,  377,  377,  596,  377,  377,  377,  377,  785,  377,
-     1729, 1730,  377,  377,  377,  595,  377,  779,  369,  369,
-      780,  369, 2326, 2326, 1674, 2326,  787, 1123,  377,  377,
-     2326, 2326, 2326,  463,  463,  377,  377,  591, 2326,  377,
-     1124,  749,  749,  377, 2326, 2326, 2326,  384,  779, 1131,
-     1132,  780,  578,  929,  929,  749,  749, 1102,  910,  910,
-
-     2326,  384,  377,  377,  930, 1136,  377,  377,  377,  579,
-      377, 1124,  576,  377,  384,  384,  384,  575,  384, 1137,
-     1131, 1132, 2326, 2326, 2326,  972,  572,  793,  384,  384,
-      384,  571,  384,  749,  749,  930, 1136,  377,  377,  384,
-     2326, 2326, 2326,  377,  377,  384, 1107,  915,  915,  491,
-     1137,  749,  749, 1116,  926,  926,  972,  384,  793,  384,
-      395, 2326, 2326, 2326,  377,  377,  384,  384,  384,  377,
-      384, 1120,  243, 1120,  377,  377, 1121, 1121, 2326, 1103,
-      377,  377,  758,  243,  384,  384,  384,  241,  384, 1138,
-      759,  377, 1681, 2326, 1129,  939,  939,  384,  241,  766,
-
-      767, 2326, 1139,  377,  377, 2326,  377,  768, 1140, 2326,
-     1239, 1797, 1798,  758,  377,  384,  396, 2326,  397,  397,
-     1138,  759,  377, 2326,  781,  377,  377, 1240, 1108,  398,
-      766,  767,  770, 1139,  771, 1117,  377, 2326,  768, 1140,
-      973, 1239,  377,  772, 2326,  377,  492,  377,  492, 1229,
-      773, 2326, 2326,  377,  377,  781, 2326, 1231, 1240, 2326,
-      398,  377,  377,  770,  776,  771, 2326,  377,  782, 1700,
-     2326,  973,  377,  377,  772,  777, 1130,  492,  377,  492,
-     1229,  773,  783,  378,  379,  380,  381,  382,  382,  382,
-      382,  382,  382,  383, 2326,  776,  377,  377, 2326,  782,
-
-      377,  377, 2326,  377,  377,  377,  777,  377, 1729, 2326,
-     1241,  377, 2326,  783, 2326,  377, 2326,  786,  377,  377,
-      788, 1797, 2326, 2326,  784,  377,  377, 2326,  789,  377,
-     2326, 2326, 2326, 1242,  377,  377,  377, 2326,  377,  377,
-      377, 1241,  377,  790,  791,  377,  377, 2326,  786, 1149,
-      377,  788,  792,  377,  796,  784,  794, 2326,  795,  789,
-      377, 1134,  943,  943, 1242, 2326, 2326,  377,  377,  377,
-     2326, 2326, 2326,  983,  790,  791,  377, 2326,  377,  377,
-     1149,  377, 2326,  792,  377,  796, 2326,  794, 2326,  795,
-      377,  377,  797, 2326, 2326,  377,  377,  798, 2326, 2326,
-
-     2326,  377,  377,  377,  983, 2326,  377,  377,  377,  377,
-      377,  799, 2326,  377,  800, 2326, 1232, 2326,  377,  377,
-      377, 2326, 2326,  797, 1243,  801,  492, 2326,  798,  802,
-      377, 2326,  377, 2326,  985,  377,  377,  377, 2326,  377,
-      377,  377,  799, 1135,  377,  800,  377, 1232, 2326,  377,
-     2326,  377,  377,  377, 2326, 1243,  801,  492,  517,  803,
-      802,  377,  518,  377,  806,  985, 2326, 2326,  377,  377,
-      377,  519,  804, 1244, 1245,  520, 2326,  377, 2326,  807,
-      377,  377,  377,  808,  954,  751,  751, 2326,  377,  517,
-      803,  377, 1150,  518,  377,  806, 2326, 2326,  377,  377,
-
-     1246,  819,  519,  804, 1244, 1245,  520,  377, 2326,  377,
-      807,  377, 2326, 2326,  808, 2326,  814,  377,  377,  377,
-      984,  377,  377, 1150,  809,  815,  377,  816,  377,  810,
-     2326, 1246,  819, 2326, 2326,  377,  377,  811,  377,  812,
-      377, 2326,  377,  377,  377,  813,  377,  814, 1247, 2326,
-      820,  984,  377,  817,  377,  809,  815,  377,  816,  377,
-      810,  818, 2326, 2326,  377,  377,  955, 2326,  811, 2326,
-      812,  821, 2326,  377,  979,  377,  813,  377,  377, 1247,
-     2326,  820,  377,  377,  817,  377, 2326,  377,  377,  377,
-      822,  377,  818,  377, 2326, 2326,  377,  377, 2326,  377,
-
-      377,  377,  821,  824,  377,  979,  377,  377,  377,  377,
-      978,  377,  823,  377, 2326,  826,  377,  377,  377, 2326,
-     2326,  822,  377,  825,  377, 2326,  827,  377,  377,  828,
-      377, 1248,  377,  377,  824, 2326, 2326, 1002,  377,  377,
-      377,  978,  377,  823,  377,  377,  826,  986, 2326, 2326,
-      377,  377, 2326, 2326,  825,  377,  377,  827,  377,  377,
-      828,  829, 1248,  377,  377,  830,  377, 2326, 1002,  377,
-      377,  377, 2326,  831,  377,  377,  377, 2326,  986,  832,
-      377, 2326,  377,  377,  377,  377,  377, 2326, 2326, 2326,
-     2326, 2326,  829,  833,  377, 2326,  830,  377, 2326, 2326,
-
-      835,  836,  836, 2326,  831, 2326, 2326,  455,  377,  377,
-      832,  377, 2326,  377, 2326, 2326,  377,  377,  377,  377,
-      988, 1249, 1235,  377,  833,  377, 2326, 2326, 2326, 2326,
-     2326,  835,  492, 2326,  455,  455,  455,  836,  836, 2326,
-      836,  836, 2326,  455, 2326, 2326,  455, 2326, 2326,  377,
-      377,  988, 1249, 1235,  377,  836,  836, 2326,  485,  485,
-     2326,  455, 2326,  492,  468,  455, 1230, 1251, 1252,  492,
-      455,  455,  455,  455,  455,  455,  838,  838,  838,  838,
-      838,  838,  838,  838,  838,  838,  838, 1253,  455,  455,
-      455,  468,  468,  468,  840,  468, 2326, 1230, 1251, 1252,
-
-      492,  455, 2326, 2326,  455,  469,  470,  471,  472,  473,
-      473,  473,  473,  473,  473,  474, 2326, 2326, 1253,  455,
-     2326, 2326,  468, 2326, 2326,  840, 2326,  485,  485, 2326,
-     2326, 2326, 2326,  468,  485,  485, 2326, 2326, 2326, 2326,
-      468,  485,  485,  478,  478, 2326, 1266,  468, 1267,  469,
-      470,  471,  472,  473,  473,  473,  473,  473,  473,  474,
-      468,  468,  468,  974,  468,  377,  841,  468,  468,  468,
-      377,  468, 1278, 1279,  468,  468,  468, 1266,  468, 1267,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,  839, 2326,
-     2326,  468, 2326, 2326,  974, 2326,  377,  841,  468, 2326,
-
-      842,  377, 2326, 1278, 1279,  468, 2326, 2326,  469,  470,
-      471,  472,  473,  473,  473,  473,  473,  473,  474,  839,
-      469,  470,  471,  472,  473,  473,  473,  473,  473,  473,
-      474,  842,  469,  470,  471,  472,  473,  473,  473,  473,
-      473,  473,  474,  843,  844,  845,  845,  845,  845,  845,
-      845,  845,  845,  845,  845,  845, 2326, 2326,  469,  470,
-      471,  472,  473,  473,  473,  473,  473,  473,  474, 2326,
-     2326, 2326, 2326, 2326,  843,  844, 2326, 2326, 2326, 2326,
-     2326, 2326, 2326, 2326,  469,  470,  471,  472,  473,  473,
-      473,  473,  473,  473,  474, 2326,  377,  990, 1089,  897,
-
-      897,  377,  469,  470,  471,  472,  473,  473,  473,  473,
-      473,  473,  474,  469,  470,  471,  472,  473,  473,  473,
-      473,  473,  473,  474,  491,  491,  491,  377,  990, 2326,
-     2326, 2326,  377, 2326, 2326,  493, 1283,  493,  494,  857,
-      857,  857,  857,  857,  857,  857,  857,  857,  857,  857,
-      495,  496,  977,  497,  523,  931, 2326,  931, 2326,  989,
-      932,  932,  498,  377,  499,  377,  500, 1283,  377,  377,
-      377,  710, 1161,  377, 2326, 2326, 2326, 2326, 2326, 2326,
-     1090,  495,  496,  977,  497, 2326,  858,  858, 2326, 2326,
-      989, 2326,  524,  498,  377,  499,  377,  500,  539,  377,
-
-      377,  377,  710, 1161,  377,  501,  502,  503,  504,  505,
-      505,  505,  505,  505,  505,  506, 2326, 2326, 2326,  524,
-      524,  524,  377,  524, 2326, 1284,  377, 2326, 2326, 2326,
-      494,  525,  526,  527,  528,  529,  529,  529,  529,  529,
-      529,  530, 2326, 2326, 2326, 2326, 2326, 1166,  710,  710,
-      524, 2326, 2326,  377,  858,  858, 1284,  377, 2326,  710,
-      524,  532,  533,  534,  535,  536,  536,  536,  536,  536,
-      536,  537,  540,  541,  542,  543,  544,  544,  544,  544,
-      544,  544,  545, 1102,  910,  910, 2326,  524,  524,  524,
-      710,  524, 1263, 1085, 1085, 2326, 1264,  501,  507,  503,
-
-      504,  505,  505,  505,  505,  505,  505,  506, 2326, 2326,
-     2326, 1288,  377, 2326, 2326, 2326, 2326,  377,  524, 2326,
-     2326, 2326, 2326, 1003,  521,  521, 2326, 2326, 2326, 2326,
-      492,  377, 2326, 2326, 2326, 2326,  377,  995,  858,  858,
-     2326, 2326, 1288,  377,  524,  858,  858, 2326,  377,  710,
-      710,  524, 2326, 2326, 1003,  377,  377,  492,  492,  492,
-      710,  492,  377,  558,  558, 1103, 2326,  377,  995,  531,
-      936,  524,  524,  524, 1265,  524, 2326,  975,  524,  524,
-      524,  976,  524, 2326,  377,  993,  377,  377,  492,  377,
-      377,  710, 2326, 2326, 2326,  377,  531,  531,  531, 2326,
-
-      531,  936,  524, 2326,  558,  558, 2326, 2326,  975,  524,
-      531, 2326,  976, 2326, 2326,  377,  993,  558,  558, 2326,
-      377,  377, 1013,  531,  558,  558,  377,  531, 2326,  377,
-      531, 2326, 2326, 2326,  377,  377,  377,  531,  531,  531,
-      377,  531,  860,  860, 2326,  998, 2326,  377,  538,  377,
-      531,  531,  531, 1013,  531, 2326, 2326,  531,  531,  531,
-      377,  531, 1255, 1081, 1081,  377,  377,  377,  531, 1256,
-     2326,  377, 2326, 2326, 2326,  538,  538,  538,  377,  538,
-      377,  531,  377,  860,  860, 2326, 2326, 2326,  531,  538,
-     2326, 2326, 2326, 2326, 2326, 2326,  860,  860, 2326, 2326,
-
-      710,  710,  538,  860,  860, 2326,  538, 2326,  980,  538,
-      377,  710, 1001,  377,  377,  377,  538,  538,  538,  377,
-      538,  981,  863,  377,  377, 1234,  935,  862,  377,  538,
-      538,  538,  492,  538, 1293,  377,  538,  538,  538,  980,
-      538,  377,  710, 1001, 1257,  377,  377,  538, 2326, 2326,
-      377, 2326,  981,  863,  377,  377, 1234,  935,  862,  377,
-      538, 2326,  551,  492, 2326, 1293,  377,  538,  532,  533,
-      534,  535,  536,  536,  536,  536,  536,  536,  537,  532,
-      533,  534,  535,  536,  536,  536,  536,  536,  536,  537,
-      552,  553,  554,  555,  556,  556,  556,  556,  556,  556,
-
-      557, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-      377,  377,  864,  864, 1308,  864,  864, 2326,  550,  864,
-      864,  550, 2326, 2326, 2326,  550, 2326, 2326, 2326, 2326,
-     2326, 2326, 2326,  864,  864, 2326, 2326,  653,  653,  550,
-     2326,  377,  377,  638, 1297,  550,  550,  550,  550,  550,
-      550,  377,  550,  550,  550,  866,  866,  866,  866,  866,
-      866,  866,  866,  866,  866,  866,  550,  550,  550,  377,
-      638,  638,  638,  377,  638, 1297,  550, 2326, 2326,  550,
-     2326, 2326,  377,  550,  532,  533,  534,  535,  536,  536,
-      536,  536,  536,  536,  537, 2326, 2326,  550,  630,  630,
-
-      377,  638,  630,  630,  377, 2326,  630,  630,  630,  630,
-      630,  630,  630,  630,  630,  902,  377,  630,  630,  630,
-      630,  630,  639,  640,  641,  642,  643,  643,  643,  643,
-      643,  643,  644,  908,  908,  908,  908,  908,  908,  908,
-      908,  908,  908,  908, 2326, 2326,  902,  377,  630,  630,
-      630, 2326,  630, 2326,  639,  640,  641,  642,  643,  643,
-      643,  643,  643,  643,  644,  639,  640,  641,  642,  643,
-      643,  643,  643,  643,  643,  644, 1107,  915,  915,  630,
-      632,  633,  634,  635,  636,  636,  636,  636,  636,  636,
-      637,  630,  630, 2326, 2326,  630,  630,  630,  630,  630,
-
-      630,  630,  630,  630,  630,  630,  630,  630,  895,  895,
-      630,  630,  630,  630,  630,  630,  377, 2326,  630,  630,
-      630,  630,  630,  630,  630,  630,  630,  630,  630,  630,
-      630,  895,  895,  630,  630,  630,  630, 2326, 2326, 2326,
-     2326, 2326,  710,  710, 2326, 2326, 2326,  377,  653,  653,
-     2326, 2326, 2326,  710,  638,  653,  653, 2326, 1108, 2326,
-     2326,  638,  653,  653, 2326, 2326, 2326,  937,  638,  675,
-      676,  677,  678,  679,  679,  679,  679,  679,  679,  680,
-     2326,  638,  638,  638,  710,  638, 2326, 2326,  638,  638,
-      638,  903,  638, 1339, 1292,  638,  638,  638,  937,  638,
-
-     2326,  630,  630, 2326,  630, 2326, 2326, 2326, 2326,  904,
-      377,  987,  638, 2326, 2326,  377,  377, 1000,  377,  638,
-      905,  377,  903, 2326, 1339, 1292,  638, 2326, 2326,  639,
-      640,  641,  642,  643,  643,  643,  643,  643,  643,  644,
-      904,  377,  987, 2326,  906, 2326,  377,  377, 1000,  377,
-     2326,  905,  377,  639,  640,  641,  642,  643,  643,  643,
-      643,  643,  643,  644,  639,  640,  641,  642,  643,  643,
-      643,  643,  643,  643,  644,  906,  907,  377, 2326, 1340,
-     1341, 1309, 2326, 2326,  639,  640,  641,  642,  643,  643,
-      643,  643,  643,  643,  644,  920,  920,  920,  920,  920,
-
-      920,  920,  920,  920,  920,  920, 2326,  907,  377,  917,
-     1340, 1341,  639,  640,  641,  642,  643,  643,  643,  643,
-      643,  643,  644,  666,  666, 2326, 2326,  666,  666, 2326,
-     2326,  666,  666,  666,  666,  666,  666,  666,  666,  666,
-      917,  918,  666,  666,  666,  666,  666,  675,  676,  677,
-      678,  679,  679,  679,  679,  679,  679,  680,  675,  676,
-      677,  678,  679,  679,  679,  679,  679,  679,  680, 2326,
-     2326, 2326,  918,  666,  666,  666, 2326,  666, 2326, 2326,
-     2326,  675,  676,  677,  678,  679,  679,  679,  679,  679,
-      679,  680,  690,  691,  692,  693,  694,  694,  694,  694,
-
-      694,  694,  695, 2326,  666,  668,  669,  670,  671,  672,
-      672,  672,  672,  672,  672,  673,  666,  666, 2326, 2326,
-      666,  666,  666,  666,  666,  666,  666,  666,  666,  666,
-      666,  666,  666,  913,  913,  666,  666,  666,  666,  666,
-      666, 1342, 2326,  666,  666,  666,  666,  666,  666,  666,
-      666,  666,  666,  666,  666,  666,  913,  913,  666,  666,
-      666,  666, 2326, 2326, 2326, 2326, 1116,  926,  926, 2326,
-     2326, 2326, 1342,  685,  685, 2326, 2326, 2326, 1233,  674,
-      685,  685, 2326, 2326, 2326, 1343,  674,  685,  685, 2326,
-     2326, 2326,  492,  674,  922,  922,  922,  922,  922,  922,
-
-      922,  922,  922,  922,  922, 1236,  674,  674,  674, 1233,
-      674, 2326, 1344,  674,  674,  674, 1343,  674,  919,  492,
-      674,  674,  674,  492,  674, 2326,  666,  666, 2326,  666,
-     2326, 2326, 2326, 2326,  377, 2326, 1236,  674, 2326,  377,
-     1005,  685,  685, 1344,  674, 2326, 2326,  674, 1117,  919,
-      492,  674, 1298, 2326,  675,  676,  677,  678,  679,  679,
-      679,  679,  679,  679,  680,  377, 1295, 2326, 2326, 2326,
-      377, 1005,  377,  377,  674,  674,  674, 2326,  674,  697,
-      697, 2326, 2326, 1298,  994,  689,  377, 2326, 2326, 2326,
-     2326,  377,  697,  697, 1337, 2326, 2326, 1295,  689, 1294,
-
-      697,  697, 2326,  377,  377,  674,  689, 2326, 2326, 1338,
-      377,  377,  689,  689,  689,  994,  689,  377,  697,  697,
-     2326, 2326,  377,  921,  689,  689,  689,  689,  377,  689,
-     1294, 2326,  377,  689,  689,  689, 2326,  689, 2326, 2326,
-     1338,  377,  377,  689, 2326, 2326, 2326, 1357, 1155, 1303,
-      377,  689,  689,  689,  921,  689,  689, 2326, 2326,  377,
-     1129,  939,  939,  377,  689,  377,  377,  690,  691,  692,
-      693,  694,  694,  694,  694,  694,  694,  695, 1357, 1155,
-     1303,  377,  689,  690,  691,  692,  693,  694,  694,  694,
-      694,  694,  694,  695,  702,  702,  377,  377,  702,  702,
-
-     2326, 2326,  702,  702,  702,  702,  702,  702,  702,  702,
-      702, 2326,  377,  702,  702,  702,  702,  702,  711,  712,
-      713,  714,  715,  715,  715,  715,  715,  715,  716,  938,
-      938,  938,  938,  938,  938,  938,  938,  938,  938,  938,
-     2326, 2326, 1130,  377,  702,  702,  702, 2326,  702,  950,
-      950,  950,  950,  950,  950,  950,  950,  950,  950,  950,
-      951,  951,  951,  951,  951,  951,  951,  951,  951,  951,
-      951, 1134,  943,  943, 2326,  702,  704,  705,  706,  707,
-      708,  708,  708,  708,  708,  708,  709,  702,  702,  361,
-     2326,  702,  702,  702,  702,  702,  702,  702,  702,  702,
-
-      702,  702,  702,  702,  924,  924,  702,  702,  702,  702,
-      702,  702,  377, 2326,  702,  702,  702,  702,  702,  702,
-      702,  702,  702,  702,  702,  702,  702,  924,  924,  702,
-      702,  702,  702, 2326, 2326, 2326, 2326, 1543, 1543, 1543,
-     2326, 2326, 2326,  377,  727,  727, 2326, 2326, 2326, 1304,
-      710,  727,  727, 1135, 2326, 2326,  377,  710,  727,  727,
-      385, 2326, 2326,  377,  710,  377,  363,  364,  365,  366,
-      367,  367,  367,  367,  367,  367,  368,  710,  710,  710,
-     1304,  710, 2326,  492,  710,  710,  710,  377,  710,  757,
-      757,  710,  710,  710,  377,  710,  377,  702,  702, 2326,
-
-      702, 2326, 2326, 2326, 1374, 2326, 2326, 2326,  710, 2326,
-     2326, 2326,  727,  727,  492,  710, 2326, 2326,  710, 1544,
-     2326, 1382,  710,  952,  952,  952,  952,  952,  952,  952,
-      952,  952,  952,  952,  386,  387,  388,  389,  390,  390,
-      390,  390,  390,  390,  391,  710,  710,  710, 2326,  710,
-      961,  963, 1382, 2326,  378,  379,  380,  381,  382,  382,
-      382,  382,  382,  382,  383,  378,  379,  380,  381,  382,
-      382,  382,  382,  382,  382,  383,  710,  720, 2326,  721,
-      721,  961,  963, 2326,  962,  377,  377, 1383, 1007,  377,
-      722,  377,  378,  379,  380,  381,  382,  382,  382,  382,
-
-      382,  382,  383, 2326,  378,  379,  380,  381,  382,  382,
-      382,  382,  382,  382,  383,  962,  377,  377, 1383, 1007,
-      377,  722,  377, 2326, 2326, 2326, 1385, 1387, 2326, 2326,
-      964,  378,  379,  380,  381,  382,  382,  382,  382,  382,
-      382,  383,  965, 2326,  711,  712,  713,  714,  715,  715,
-      715,  715,  715,  715,  716,  369,  369, 1385, 1387,  369,
-      369,  964, 2326,  369,  369,  369,  369,  369,  369,  369,
-      369,  369, 1388,  965,  369,  369,  369,  369,  369,  968,
-      378,  379,  380,  381,  382,  382,  382,  382,  382,  382,
-      383,  966,  378,  379,  380,  381,  382,  382,  382,  382,
-
-      382,  382,  383, 1388, 2326,  369,  369,  369, 2326,  369,
-      968, 2326, 2326, 2326, 2326, 2326, 2326,  967, 2326, 2326,
-     2326, 2326,  966, 2326, 2326,  378,  379,  380,  381,  382,
-      382,  382,  382,  382,  382,  383,  369,  371,  372,  373,
-      374,  375,  375,  375,  375,  375,  375,  376,  967,  378,
-      379,  380,  381,  382,  382,  382,  382,  382,  382,  383,
-     2326, 2326, 2326, 2326,  378,  379,  380,  381,  382,  382,
-      382,  382,  382,  382,  383,  969, 1390,  997, 2326, 2326,
-      970, 2326,  377, 2326, 2326, 1392, 2326,  377, 1042, 1042,
-     1042, 1042, 1042, 1042, 1042, 1042, 1042, 1042, 1042, 2326,
-
-      991,  992, 2326,  996, 2326, 1393,  969, 1390,  997,  377,
-      377,  970,  377,  377,  377,  377, 1392,  377,  377, 2326,
-      378,  379,  380,  381,  382,  382,  382,  382,  382,  382,
-      383,  991,  992,  377,  996,  999, 1393, 1009,  377, 2326,
-      377,  377,  377,  377, 1004,  377,  377,  377,  377, 1006,
-     1008, 2326, 1394,  377, 1010,  377,  377,  377,  377, 1012,
-      377,  377,  377, 2326,  377,  377,  999, 1011, 1009,  377,
-      377, 2326, 1014,  377,  377, 1004, 2326,  377,  377,  377,
-     1006, 1008,  377, 1394,  377, 1010,  377,  377,  377,  377,
-     1012,  377,  377,  377,  377, 1015,  377, 2326, 1011,  377,
-
-     1016,  377,  377, 1014,  377,  377,  377,  377,  377,  377,
-      377,  377, 1017,  377, 1019, 1020, 1020, 1020, 1028,  377,
-     1018, 1023, 2326,  377,  377,  377, 1015,  377,  377, 1029,
-      377, 1016,  377,  377,  377,  377, 1022,  377,  377, 2326,
-      377, 1396,  377, 1017, 1397, 1019, 1026, 2326,  377, 1028,
-      377,  377, 1023,  377,  377,  377,  377, 1175,  377,  377,
-     1029,  377, 1027,  377,  377,  377, 2326, 1022, 1024,  377,
-     1025,  377, 1396, 1030, 2326, 1397,  377, 1026,  377,  377,
-      377, 1031,  377, 1032,  377,  377, 2326,  377, 1175,  377,
-     1033, 1035,  377, 1027,  377,  377,  377, 1021, 2326, 1024,
-
-      377, 1025,  377,  377, 1030, 1037, 2326,  377,  377,  377,
-      377,  377, 1031,  377, 1032,  377,  377, 1034,  377,  377,
-      377, 1033, 1035, 1038,  377,  377, 1036,  377,  377, 1041,
-      492,  492, 1375, 1039,  377,  377, 1037, 1040,  377,  377,
-      377,  377, 2326, 2326,  377,  456,  377, 2326, 1034,  377,
-      377, 2326, 1377, 1043, 1038,  377, 2326, 1036, 2326,  377,
-     1041,  492,  492, 1375, 1039, 2326,  377, 1044, 1040,  377,
-     2326,  377, 2326,  457,  458,  459,  460,  461,  461,  461,
-      461,  461,  461,  462, 1043, 2326,  469,  470,  471,  472,
-      473,  473,  473,  473,  473,  473,  474, 2326, 1044, 2326,
-
-     2326, 1045, 1046, 1060, 1060, 1060, 1060, 1060, 1060, 1060,
-     1060, 1060, 1060, 1060, 1263, 1085, 1085, 2326, 1264, 2326,
-     2326,  469,  470,  471,  472,  473,  473,  473,  473,  473,
-      473,  474, 1045, 1046, 2326, 2326, 2326, 1047, 2326, 2326,
-     2326, 2326,  469,  470,  471,  472,  473,  473,  473,  473,
-      473,  473,  474,  523, 2326, 2326, 2326,  469,  470,  471,
-      472,  473,  473,  473,  473,  473,  473,  474, 1047, 1048,
-     1061, 1061, 1061, 1061, 1061, 1061, 1061, 1061, 1061, 1061,
-     1061,  469,  470,  471,  472,  473,  473,  473,  473,  473,
-      473,  474,  539, 2326, 2326, 2326, 1265, 2326, 1306, 2326,
-
-     1048, 1064, 1064, 1064, 1064, 1064, 1064, 1064, 1064, 1064,
-     1064, 1064, 1178, 1398, 1062,  377,  377,  469,  470,  471,
-      472,  473,  473,  473,  473,  473,  473,  474,  494, 1306,
-      525,  526,  527,  528,  529,  529,  529,  529,  529,  529,
-      530, 2326, 2326, 1178, 1398, 1062,  377,  377, 1420, 1424,
-     1425, 2326, 1049,  532,  533,  534,  535,  536,  536,  536,
-      536,  536,  536,  537, 2326, 2326,  540,  541,  542,  543,
-      544,  544,  544,  544,  544,  544,  545, 1063,  377, 1420,
-     1424, 1425,  377, 1049, 1087, 1087, 1087, 1087, 1087, 1087,
-     1087, 1087, 1087, 1087, 1087,  501,  507,  503,  504,  505,
-
-      505,  505,  505,  505,  505,  506,  494,  551, 1063,  377,
-     2326, 2326, 2326,  377, 2326, 1050, 1094, 2326, 2326, 1099,
-     2326, 2326, 2326, 2326,  532,  533,  534,  535,  536,  536,
-      536,  536,  536,  536,  537,  552,  553,  554,  555,  556,
-      556,  556,  556,  556,  556,  557, 1050, 1094,  639,  640,
-      641,  642,  643,  643,  643,  643,  643,  643,  644,  377,
-      639,  640,  641,  642,  643,  643,  643,  643,  643,  643,
-      644, 1095, 2326,  501,  507,  503,  504,  505,  505,  505,
-      505,  505,  505,  506,  630,  630, 2326, 2326,  630,  630,
-      377, 2326,  630,  630,  630,  630,  630,  630,  630,  630,
-
-      630, 1096, 1095,  630,  630,  630,  630,  630,  377, 1162,
-      377, 1310,  377,  377,  377, 1153,  639,  640,  641,  642,
-      643,  643,  643,  643,  643,  643,  644, 1097,  377,  377,
-      377,  377, 1096, 2326,  630,  630,  630, 2326,  630,  377,
-     1162,  377, 1310,  377,  377,  377, 1153,  639,  640,  641,
-      642,  643,  643,  643,  643,  643,  643,  644, 1097,  377,
-      377,  377,  377, 2326, 1098,  630,  632,  633,  634,  635,
-      636,  636,  636,  636,  636,  636,  637, 2326, 2326, 2326,
-     2326, 2326, 2326, 2326,  639,  640,  641,  642,  643,  643,
-      643,  643,  643,  643,  644, 1098, 2326,  377, 2326, 2326,
-
-      377, 1180, 2326,  639,  640,  641,  642,  643,  643,  643,
-      643,  643,  643,  644, 1105, 1105, 1105, 1105, 1105, 1105,
-     1105, 1105, 1105, 1105, 1105,  666,  666, 1111,  377,  666,
-      666,  377, 1180,  666,  666,  666,  666,  666,  666,  666,
-      666,  666, 1109, 2326,  666,  666,  666,  666,  666,  377,
-     1176,  377, 1317,  377, 1322,  377,  675,  676,  677,  678,
-      679,  679,  679,  679,  679,  679,  680, 2326, 1168,  377,
-     1184,  377, 1112, 1109,  377,  666,  666,  666, 2326,  666,
-      377, 1176,  377, 1317,  377, 1322,  377,  675,  676,  677,
-      678,  679,  679,  679,  679,  679,  679,  680, 1110, 1168,
-
-      377, 1184,  377, 1112, 1452,  377,  666,  668,  669,  670,
-      671,  672,  672,  672,  672,  672,  672,  673,  690,  691,
-      692,  693,  694,  694,  694,  694,  694,  694,  695, 1110,
-      932,  932, 2326, 2326, 1143, 1452, 2326,  675,  676,  677,
-      678,  679,  679,  679,  679,  679,  679,  680, 1114, 1114,
-     1114, 1114, 1114, 1114, 1114, 1114, 1114, 1114, 1114,  702,
-      702, 2326, 2326,  702,  702, 1143, 2326,  702,  702,  702,
-      702,  702,  702,  702,  702,  702, 1125, 1305,  702,  702,
-      702,  702,  702,  377,  378,  379,  380,  381,  382,  382,
-      382,  382,  382,  382,  383,  711,  712,  713,  714,  715,
-
-      715,  715,  715,  715,  715,  716, 1126, 1125, 1305,  702,
-      702,  702, 2326,  702,  377, 2326, 2326, 2326, 2326, 2326,
-      711,  712,  713,  714,  715,  715,  715,  715,  715,  715,
-      716, 1259, 1083, 1083, 2326, 2326, 2326, 1126, 1260, 2326,
-      702,  704,  705,  706,  707,  708,  708,  708,  708,  708,
-      708,  709, 1127,  377,  377,  377, 1296,  377,  377,  377,
-     1186, 2326, 2326,  711,  712,  713,  714,  715,  715,  715,
-      715,  715,  715,  716, 1141, 1185,  377, 1187, 1172,  377,
-      377,  377, 2326, 1127,  377,  377,  377, 1296,  377,  377,
-      377, 1186,  711,  712,  713,  714,  715,  715,  715,  715,
-
-      715,  715,  716, 1142, 1453, 1141, 1185,  377, 1187, 2326,
-      377,  377,  377, 1261, 2326,  378,  379,  380,  381,  382,
-      382,  382,  382,  382,  382,  383, 1144, 1193,  377,  377,
-      492, 1145, 1192,  377, 1142, 1453, 2326,  378,  379,  380,
-      381,  382,  382,  382,  382,  382,  382,  383, 2326, 2326,
-     2326, 1380, 2326, 2326, 2326, 2326, 1146, 1144, 1193,  377,
-      377,  492, 1145, 1192,  377,  378,  379,  380,  381,  382,
-      382,  382,  382,  382,  382,  383,  378,  379,  380,  381,
-      382,  382,  382,  382,  382,  382,  383, 1146, 1255, 1081,
-     1081, 2326, 2326, 2326, 2326, 1256, 2326,  378,  379,  380,
-
-      381,  382,  382,  382,  382,  382,  382,  383,  378,  379,
-      380,  381,  382,  382,  382,  382,  382,  382,  383, 1147,
-      377,  377, 1154, 1148,  377,  377,  377,  377,  377, 1160,
-      377,  377,  377,  377, 1208, 1151, 1152,  377,  377, 2326,
-     1157, 1158, 1259, 1083, 1083, 2326, 2326, 2326, 2326, 1260,
-     1147,  377,  377, 1154, 1148,  377,  377,  377,  377,  377,
-     1160,  377,  377,  377,  377, 1208, 1151, 1152,  377,  377,
-     1257, 1157, 1158,  378,  379,  380,  381,  382,  382,  382,
-      382,  382,  382,  383,  377,  377,  377,  377,  377,  377,
-      377,  377,  377, 2326,  377, 1459,  377, 1164,  377, 1156,
-
-      377, 1159, 1163, 1165,  377, 1167, 2326, 2326, 2326,  377,
-     1170, 1170, 1170, 1169, 2326,  377,  377,  377,  377,  377,
-      377,  377,  377,  377, 1261,  377, 1459,  377, 1164,  377,
-     1156,  377, 1159, 1163, 1165,  377, 1167,  377,  377,  377,
-      377,  377,  377,  377, 1169,  377, 2326,  377, 2326,  377,
-     1174,  377, 2326, 1173, 2326, 1177, 1181, 1181, 1181, 1183,
-     1179, 2326, 2326,  377, 2326,  377, 2326,  377,  377,  377,
-      377,  377,  377,  377,  377,  377,  377, 1299,  377, 1188,
-      377, 1174,  377,  377, 1173, 1189, 1177,  377,  377,  377,
-     1183, 1179, 1171,  377,  377,  377,  377, 1191,  377,  377,
-
-      377, 1190,  377, 1194,  377,  377,  377, 2326, 1299,  377,
-     1188, 2326, 2326, 2326,  377, 1329, 1189, 1210,  377,  377,
-      377,  377,  377,  377,  377, 2326,  377,  377, 1191, 2326,
-      377,  377, 1190, 2326, 1194,  377,  377, 1205, 1182, 2326,
-      377, 1020, 1020, 1020, 2326, 2326, 1329, 2326, 1210, 1203,
-     1203, 1203,  377,  377,  377,  463,  463, 2326,  377, 2326,
-      377,  377, 1311, 1195,  377,  377, 1196, 1197, 1205,  377,
-      377, 1461,  377,  377,  377, 1206,  377, 1198, 1199, 1200,
-      377, 1207, 2326, 1201, 1211, 2326, 2326,  377,  377,  377,
-      377,  377,  377, 1311, 2326,  377,  377, 1196, 1197, 2326,
-
-      377,  377, 1461,  377,  377,  377, 1206,  377, 1198, 1199,
-     1200,  377, 1207,  377, 1201, 1211, 1209,  377,  377,  377,
-      377, 1020, 1213, 1202,  377,  377, 1212, 2326,  377,  377,
-      377, 1204,  377, 1218,  377, 1216,  377,  377, 1217,  377,
-      377, 1214, 1219,  377,  377, 1215,  377, 1209,  377, 2326,
-      377,  377, 1474, 1213,  377,  377,  377, 1212, 1220,  377,
-      377,  377, 1222,  377, 1218,  377, 1216,  377,  377, 1217,
-      377,  377, 1214, 1219,  377,  377, 1215,  377, 1221,  377,
-      377,  377,  377, 1474,  377,  377, 2326, 2326, 2326, 1220,
-     2326, 2326, 2326, 1222, 2326, 2326, 1223, 2326, 1475, 1476,
-
-     2326, 2326, 2326, 1813, 1813, 1813,  377, 2326, 2326, 1221,
-      377,  377, 1224,  377, 1477,  377,  469,  470,  471,  472,
-      473,  473,  473,  473,  473,  473,  474, 1223, 1225, 1475,
-     1476,  469,  470,  471,  472,  473,  473,  473,  473,  473,
-      473,  474, 1226, 1224, 2326, 1477,  469,  470,  471,  472,
-      473,  473,  473,  473,  473,  473,  474,  469,  470,  471,
-      472,  473,  473,  473,  473,  473,  473,  474,  494, 1237,
-     2326, 2326, 1227, 1226,  469,  470,  471,  472,  473,  473,
-      473,  473,  473,  473,  474, 1814, 2326,  469,  470,  471,
-      472,  473,  473,  473,  473,  473,  473,  474,  532,  533,
-
-      534,  535,  536,  536,  536,  536,  536,  536,  537, 2326,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 1300, 1313,  638,
-     1238, 1323, 1318, 1328,  377,  377, 1358, 2326, 1324, 1269,
-      377,  377,  377,  377,  377,  501,  507,  503,  504,  505,
-      505,  505,  505,  505,  505,  506,  494, 2326, 1300, 1313,
-     2326, 1238, 1323, 1318, 1328,  377,  377, 1358, 2326, 1324,
-     1269,  377,  377,  377,  377,  377, 1276, 1376, 1479, 1270,
-     1483, 1484,  492, 1228,  532,  533,  534,  535,  536,  536,
-      536,  536,  536,  536,  537,  639,  640,  641,  642,  643,
-      643,  643,  643,  643,  643,  644,  640, 2326, 1376, 1479,
-
-     1270, 1483, 1484,  492, 1228, 2326, 2326, 1481, 1487, 2326,
-     1482, 2326, 2326,  501,  507,  503,  504,  505,  505,  505,
-      505,  505,  505,  506,  639,  640,  641,  642,  643,  643,
-      643,  643,  643,  643,  644, 1271, 1271, 1271, 1481, 1487,
-     1272, 1482, 1301, 1307, 1302, 2326, 2326, 2326, 1273, 1312,
-      638, 2326, 2326, 2326, 1281, 2326,  638, 2326, 2326, 2326,
-     2326, 2326, 2326,  377, 2326,  377, 2326,  377, 1275, 1488,
-      377, 1325, 1336, 1301, 1307, 1302, 1277,  377,  377, 1280,
-     1312, 2326, 2326,  675,  676,  677,  678,  679,  679,  679,
-      679,  679,  679,  680,  377, 2326,  377, 1282,  377, 1275,
-
-     1488,  377, 1325, 1336, 1823, 1823, 1823, 1277,  377,  377,
-     1280, 1181, 1181, 1181, 2326, 1489,  639, 1274,  641,  642,
-      643,  643,  643,  643,  643,  643,  644,  640, 1282, 2326,
-     2326, 2326, 2326,  640,  675,  676,  677,  678,  679,  679,
-      679,  679,  679,  679,  680, 1285, 1489, 1490, 1491, 1326,
-     2326, 2326, 2326,  675,  676,  677,  678,  679,  679,  679,
-      679,  679,  679,  680,  690,  691,  692,  693,  694,  694,
-      694,  694,  694,  694,  695, 2326, 1285, 2326, 1490, 1491,
-     1326, 1286, 1334, 1365, 1335, 1367, 1824, 2326, 2326, 1492,
-      377, 1379,  492, 1327,  377,  377,  492,  377, 1378, 1493,
-
-     1287,  711,  712,  713,  714,  715,  715,  715,  715,  715,
-      715,  716, 1286, 1334, 1365, 1335, 1367, 1319, 1319, 1319,
-     1492,  377, 1379,  492, 2326,  377,  377,  492,  377, 1378,
-     1493, 1287, 1320, 2326, 2326, 1170, 1170, 1170, 2326,  711,
-      712,  713,  714,  715,  715,  715,  715,  715,  715,  716,
-      711,  712,  713,  714,  715,  715,  715,  715,  715,  715,
-      716, 1289, 1289, 1289, 1314,  377, 1330, 1331, 2326, 1333,
-     1332, 1359, 2326, 1315, 1813, 1813, 1813, 2326, 1360, 2326,
-     1361, 1494,  377, 1432, 1366, 1362, 2326,  377,  377, 1363,
-      377,  377,  377,  377,  377, 1314,  377, 1330, 1331, 1321,
-
-     1333, 1332, 1359,  377, 1315,  377,  377, 1364,  377, 1360,
-      377, 1361, 1494,  377, 1432, 1366, 1362, 1316,  377,  377,
-     1363,  377,  377,  377,  377,  377, 1368, 1446,  377,  377,
-      377, 1289, 1289, 1289,  377,  377,  377,  377, 1364,  377,
-     2326,  377,  378, 1290,  380,  381,  382,  382,  382,  382,
-      382,  382,  383, 2326, 2326, 2326, 1814, 1368, 1446,  377,
-      377,  377, 1370, 1467,  377, 1507,  377,  492,  377, 1429,
-     2326,  469,  470,  471,  472,  473,  473,  473,  473,  473,
-      473,  474,  469,  470,  471,  472,  473,  473,  473,  473,
-      473,  473,  474, 1370, 1467,  377, 1507, 2326,  492,  377,
-
-     1429, 1291,  532,  533,  534,  535,  536,  536,  536,  536,
-      536,  536,  537, 1430, 2326, 2326, 2326, 2326,  469,  470,
-      471,  472,  473,  473,  473,  473,  473,  473,  474, 2326,
-     2326, 2326, 1291, 1445,  378,  379,  380,  381,  382,  382,
-      382,  382,  382,  382,  383, 2326, 2326, 2326, 1369, 2326,
-     2326, 2326, 2326, 2326, 1979, 1979, 1979, 1371,  377, 2326,
-     1433,  463,  463, 2326, 1445, 2326,  377,  377, 1434, 1431,
-     1435, 1437, 1443, 2326,  377,  492,  377,  469,  470,  471,
-      472,  473,  473,  473,  473,  473,  473,  474, 1371,  377,
-      377, 1433,  377,  377,  377,  377,  377,  377,  377, 1434,
-
-     1431, 1435, 1437, 1443, 1381,  377,  492,  377, 1512,  469,
-      470,  471,  472,  473,  473,  473,  473,  473,  473,  474,
-     1399,  377, 2326,  377,  377,  377, 2326, 1170, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326, 1381, 1980, 2326, 2326, 1512,
-     2326, 2326, 2326, 2326,  463,  463, 2326, 2326, 2326, 1514,
-      377, 1399,  532,  533,  534,  535,  536,  536,  536,  536,
-      536,  536,  537, 1400,  639,  640,  641,  642,  643,  643,
-      643,  643,  643,  643,  644, 2326, 1444,  377,  377,  377,
-     1514,  377, 2326, 2326, 2326, 1509, 2326, 1515,  377, 2326,
-     1510, 1447,  639,  640,  641,  642,  643,  643,  643,  643,
-
-      643,  643,  644,  377, 1271, 1271, 1271, 1444,  377, 1401,
-     1181, 1203, 1203, 1203, 2326, 2326, 1509, 1273, 1515,  377,
-     1436, 1510, 1447, 1438, 1442,  653,  653, 1849, 1849, 1849,
-     1402,  638, 1501, 1516,  377, 1454, 1345, 1346, 1347, 1348,
-     1349, 1850, 1350,  377, 1351,  377,  377,  377,  377, 1352,
-     2326, 1436, 1353, 1354, 1438, 1442, 1355, 1519,  638,  638,
-      638, 1402,  638, 1501, 1516, 2326, 1454, 1345, 1346, 1347,
-     1348, 1349, 1417, 1350,  377, 1351,  377,  377,  377,  377,
-     1352, 1418, 1520, 1353, 1354, 2326, 1403, 1355, 1519,  638,
-     2326, 1271, 2326, 1356, 2326, 2326, 2326, 2326, 2326, 2326,
-
-     2326, 2326, 2326, 1417, 2326, 2326, 2326, 2326, 2326, 1851,
-      463,  463, 1418, 1520, 2326, 1419,  377, 1521, 2326,  639,
-      640,  641,  642,  643,  643,  643,  643,  643,  643,  644,
-     2326,  639,  640,  641,  642,  643,  643,  643,  643,  643,
-      643,  644, 1422,  377,  377,  377, 1419,  377, 1521, 1421,
-     2326, 2326, 2326, 2326, 2326, 2326, 1439, 1439, 1439,  639,
-      640,  641,  642,  643,  643,  643,  643,  643,  643,  644,
-     2326, 1440, 1423, 1422,  377, 1522, 1203,  494,  675,  676,
-      677,  678,  679,  679,  679,  679,  679,  679,  680, 2326,
-     2326, 2326,  675,  676,  677,  678,  679,  679,  679,  679,
-
-      679,  679,  680, 1423,  377, 1372, 1522, 2326, 1523, 1524,
-     1525, 2326, 1426, 1981, 1981, 1981,  675,  676,  677,  678,
-      679,  679,  679,  679,  679,  679,  680, 1449, 1449, 1449,
-     2326, 2326,  640, 2326, 2326,  377, 1372, 1427, 1441, 1523,
-     1524, 1525, 1450, 1426,  501,  507,  503,  504,  505,  505,
-      505,  505,  505,  505,  506,  494,  711,  712,  713,  714,
-      715,  715,  715,  715,  715,  715,  716, 1428, 1427, 1448,
-     1458, 1526, 1373, 1496, 1527,  377,  377,  377, 2326,  377,
-     2326, 2326, 2326, 2326,  711,  712,  713,  714,  715,  715,
-      715,  715,  715,  715,  716, 1982, 2326, 2326, 1428, 2326,
-
-     1448, 1458, 1526, 1373, 1496, 1527,  377,  377,  377, 1451,
-      377,  711,  712,  713,  714,  715,  715,  715,  715,  715,
-      715,  716,  501,  507,  503,  504,  505,  505,  505,  505,
-      505,  505,  506, 1404, 1405, 1271, 1271, 1404, 1404, 1406,
-     1407, 1404, 1404, 1404, 1404, 1404, 1404, 1408, 1404, 1404,
-     1407, 1407, 1404, 1404, 1404, 1404, 1404, 1407, 1407, 1407,
-     1409, 1407, 1407, 1407, 1407, 1407, 1407, 1407, 1407, 1407,
-     1407, 1407, 1407, 1407, 1407, 1407, 1407, 1407, 1407, 1407,
-     1407, 1407, 1407, 1404, 1404, 1404, 1407, 1404, 1407, 1407,
-     1407, 1409, 1407, 1407, 1407, 1407, 1407, 1407, 1407, 1407,
-
-     1407, 1407, 1407, 1407, 1407, 1407, 1407, 1407, 1407, 1407,
-     1407, 1407, 1407, 1407, 1404, 1410, 1411, 1412, 1413, 1414,
-     1414, 1414, 1414, 1414, 1414, 1415, 2326, 2326, 2326, 2326,
-     1455, 2326, 2326, 1460, 1319, 1319, 1319, 1462, 1463, 1464,
-     1465, 1466,  463,  463, 2326, 2326, 2326,  377,  377, 1320,
-      377, 1495, 1500, 2326, 1528, 1505,  377, 1534,  377,  492,
-      377, 1455,  377,  377, 1460, 1468, 1468, 1468, 1462, 1463,
-     1464, 1465, 1466,  377,  377,  377,  377,  377,  377,  377,
-     1469,  377, 1495, 1500, 1485, 1528, 1505,  377, 1534,  377,
-      492,  377, 2326,  377,  377, 1471, 1486, 1536, 2326, 1472,
-
-     1473, 1502, 2326, 2326,  377,  377,  377, 1517, 1289, 1497,
-     1497, 1497, 1518,  377, 1550, 1485, 1456, 2326, 2326, 2326,
-      377, 2326, 2326, 2326, 1498, 1508, 1471, 1486, 1536,  492,
-     1472, 1473, 1502,  463,  463, 2326, 2326, 2326, 1517,  377,
-     2326, 2326, 2326, 1518,  377, 1550, 2326, 1470, 2326, 2326,
-     2326,  377, 1506, 1551, 1511, 1554, 1508,  377,  492,  377,
-      492, 1503,  492, 2326,  377,  377,  377,  377,  377, 2326,
-      377,  469,  470,  471,  472,  473,  473,  473,  473,  473,
-      473,  474, 1504, 1506, 1551, 1511, 1554, 2326,  377,  492,
-      377, 1499, 1503,  492, 1513,  377,  377,  377, 2326, 1319,
-
-      469,  470,  471,  472,  473,  473,  473,  473,  473,  473,
-      474, 2326,  377, 1504,  469,  470,  471,  472,  473,  473,
-      473,  473,  473,  473,  474, 1513,  469,  470,  471,  472,
-      473,  473,  473,  473,  473,  473,  474, 1529, 2326, 2326,
-     2326, 1555, 1558,  377, 1557, 1561,  377,  377,  532,  533,
-      534,  535,  536,  536,  536,  536,  536,  536,  537, 2326,
-     2326, 2326, 2326, 1530, 2326,  377,  377,  377, 1529, 1405,
-     1271, 1271, 1555, 1558, 1531, 1557, 1561,  377,  377, 2326,
-     2326, 2326, 1408,  639,  640,  641,  642,  643,  643,  643,
-      643,  643,  643,  644, 1530, 1532,  377,  377,  377, 2326,
-
-     2326,  377, 1556, 2326,  639,  640,  641,  642,  643,  643,
-      643,  643,  643,  643,  644, 1405, 1271, 1271, 2326,  377,
-     1531, 2326, 1405, 1271, 1271, 1568, 1532, 1531, 1408, 1405,
-     1271, 1271,  377, 1556, 1531, 1408, 1562, 1439, 1439, 1439,
-     1569, 1532, 1535, 1563, 1405, 1271, 1271, 2326, 1532, 1531,
-      377, 1533, 1440, 1564,  377, 1532, 1568, 1408, 1565,  377,
-     1537, 1537, 1570,  377, 2326, 2326, 2326, 1562,  377,  377,
-     1532, 1569, 1532, 2326, 1563,  377, 1571, 1576,  377, 1532,
-     1449, 1449, 1449,  377, 1564,  377, 1532,  377, 2326, 1565,
-      377,  377, 2326, 1570,  377, 1450, 1545, 1533, 2326,  377,
-
-      377, 1532, 2326, 2326, 1533, 2326,  377, 1571, 1576,  377,
-     2326, 1533, 1531, 1404,  377, 2326, 2326, 2326,  377, 1559,
-     2326,  377,  377, 1537, 1537, 2326, 1533, 1545, 1546, 1407,
-      639,  640,  641,  642,  643,  643,  643,  643,  643,  643,
-      644,  639,  640,  641,  642,  643,  643,  643,  643,  643,
-      643,  644,  377, 1587, 1588, 1589, 1407, 1407, 1407, 1546,
-     1407, 2326, 1566, 2326, 2326, 2326,  639,  640,  641,  642,
-      643,  643,  643,  643,  643,  643,  644, 1987, 1987, 1987,
-     2040, 2040, 2040, 2326, 1587, 1588, 1589, 1407, 1407, 1538,
-     1407, 1407, 1407, 1407, 1407, 1407, 1407, 1407, 1407, 1404,
-
-     1405, 1271, 1271, 1404, 1404, 1531, 1404, 1404, 1404, 1404,
-     1404, 1404, 1404, 1408, 1404, 1404, 1537, 1537, 1404, 1404,
-     1404, 1404, 1547, 1590, 1591, 1592, 1541,  711,  712,  713,
-      714,  715,  715,  715,  715,  715,  715,  716, 2326, 2326,
-     2326, 2326, 2326, 2326, 1593, 1548, 2326, 1594, 1595, 1596,
-     1597, 2326, 1598, 1547, 1590, 1591, 1592, 1541, 2326, 1988,
-     2326, 2326, 2041,  675,  676,  677,  678,  679,  679,  679,
-      679,  679,  679,  680, 1549, 1593, 1548, 1552, 1594, 1595,
-     1596, 1597, 1542, 1598, 2326, 2326, 1404, 1404, 2326, 1404,
-      675,  676,  677,  678,  679,  679,  679,  679,  679,  679,
-
-      680, 2326, 2326, 1553, 2326, 1549, 1599, 1600, 1552, 1601,
-     1602, 1603,  675,  676,  677,  678,  679,  679,  679,  679,
-      679,  679,  680,  711,  712,  713,  714,  715,  715,  715,
-      715,  715,  715,  716, 1553, 1575, 2326, 1599, 1600, 1604,
-     1601, 1602, 1603, 1605, 2326, 2326,  377, 1580,  711,  712,
-      713,  714,  715,  715,  715,  715,  715,  715,  716, 2326,
-     2326, 2326,  377, 1606, 2326, 2326, 1575, 1577, 1577, 1577,
-     1604, 1581, 1607, 1608, 1605,  463,  463,  377, 1580, 2326,
-     2326,  377, 1578,  377, 2326, 1609, 1610, 2326,  377, 1611,
-     2326, 2326,  377,  377, 1606,  377, 1468, 1468, 1468, 1628,
-
-     1612, 2326, 1581, 1607, 1608, 2326, 2326,  492,  377,  377,
-      377, 1469,  377, 2326,  377,  377, 1609, 1610, 1582,  377,
-     1611,  377, 1583,  377, 1615, 1616,  377, 2326, 1620, 1617,
-     1628, 1612,  377, 2326, 1584, 1497, 1497, 1497,  492,  377,
-     1630, 1439, 2326, 2326, 2326,  377,  377, 2326, 2326, 1579,
-     1498, 2326,  377, 1583, 2326, 1615, 1616, 2326,  463,  463,
-     1617, 2326, 2326,  377,  377, 1584,  492, 1631, 1621, 1624,
-     1632, 1630, 2326,  492,  492, 1619,  377,  492, 1585,  469,
-      470,  471,  472,  473,  473,  473,  473,  473,  473,  474,
-     1622,  377,  377,  377, 2326,  377, 2326,  492, 1631, 1621,
-
-     1624, 1632, 1623, 1618,  492,  492, 1619,  492,  492, 1625,
-     2326, 2326, 1633, 1634,  492, 2326, 2326, 1613, 2326, 2326,
-     2326, 1622,  377, 2326, 1449, 2326, 2326, 2326, 1635, 1636,
-     2326, 2326, 1626, 1623, 1618, 1637, 1638,  492,  492, 1639,
-     1625,  463,  463, 1633, 1634,  492, 1627,  377,  469,  470,
-      471,  472,  473,  473,  473,  473,  473,  473,  474, 1635,
-     1636, 1640, 1641, 1626, 1642, 1646, 1637, 1638,  492, 1650,
-     1639, 1536, 1665, 1666,  377,  377,  377, 1627,  377, 2326,
-      532,  533,  534,  535,  536,  536,  536,  536,  536,  536,
-      537, 1643, 1640, 1641, 2326, 1642, 1646, 1668, 1669, 2326,
-
-     1650,  377, 1536, 1665, 1666,  377, 2326, 1468, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 1672, 1644,  377,
-     1683, 1684, 1643,  377,  463,  463, 2326, 2326, 1668, 1669,
-      377, 2326,  377, 2326, 2326, 2326, 2326,  639,  640,  641,
-      642,  643,  643,  643,  643,  643,  643,  644, 1672, 1644,
-      377, 1683, 1684, 2326,  377, 2326, 1685,  377,  377,  377,
-     1692,  377,  639,  640,  641,  642,  643,  643,  643,  643,
-      643,  643,  644, 1405, 1271, 1271, 2326,  377, 1531, 1405,
-     1271, 1271, 2326, 2326, 1531, 2326, 1408, 1685,  377, 1670,
-     1497, 1692, 1408, 1405, 1271, 1271,  377, 2326, 1531, 1532,
-
-      377, 1696, 1647, 1648, 1648, 1532, 1408, 1531,  377, 2326,
-     1676, 1405, 1271, 1271, 1671, 1535, 1531, 1695, 1677, 1532,
-     1670,  377, 1645,  377, 1408,  377,  377,  377, 1532, 2326,
-     1532,  377, 1696, 2326, 1678, 1679, 1532, 1532, 1655, 1648,
-     1648, 1676, 1697, 1656, 2326, 1671,  377,  377, 1695, 1677,
-     1532, 1657,  377, 1645,  377, 1533,  377,  377, 1698, 1532,
-     1660, 1533, 2326, 1703, 1658, 1678, 1679, 2326, 1532, 2326,
-     2326, 2326, 2326, 1697, 2326, 1539, 2326,  377,  377, 2326,
-     2326, 1661, 2326, 1705, 1649, 1405, 1271, 1271, 1708, 1698,
-     1531, 1660, 2326, 1539, 1703, 1658, 2326, 2326, 1408, 2326,
-
-      639,  640,  641,  642,  643,  643,  643,  643,  643,  643,
-      644, 1532, 1661, 1663, 1705, 2326, 1709, 1710, 1711, 1708,
-     1659, 1688, 1688, 1688, 2326, 2326,  639,  640,  641,  642,
-      643,  643,  643,  643,  643,  643,  644, 2326, 2326, 2326,
-     2326, 2326, 1532, 2326, 1663, 2326, 1662, 1709, 1710, 1711,
-     1712, 1689, 1713,  675,  676,  677,  678,  679,  679,  679,
-      679,  679,  679,  680, 2326, 2326, 1651, 1652, 1651, 1651,
-     1651, 1651, 1651, 1651, 1651, 1651, 1651, 1662, 1664, 1686,
-     1714, 1712, 1689, 1713, 1715, 1716, 1717,  377, 1667, 1718,
-      675,  676,  677,  678,  679,  679,  679,  679,  679,  679,
-
-      680, 2326, 2326, 1690, 2326, 2326, 1577, 1577, 1577, 1664,
-     1686, 1714, 2326, 2326, 2326, 1715, 1716, 1717,  377, 1667,
-     1718, 1578, 2326,  675,  676,  677,  678,  679,  679,  679,
-      679,  679,  679,  680,  711,  712,  713,  714,  715,  715,
-      715,  715,  715,  715,  716,  711,  712,  713,  714,  715,
-      715,  715,  715,  715,  715,  716, 1691, 2326, 1706, 1719,
-     1720, 1721, 1722, 1724, 1725, 1726,  377, 1727,  377, 2326,
-     2326, 2326,  377, 1731, 2326, 2326, 1707,  377, 1732, 1735,
-      377,  492,  492, 1723,  377, 2326, 2326, 1691, 1693, 1706,
-     1719, 1720, 1721, 1722, 1724, 1725, 1726,  377, 1727,  377,
-
-     2326, 2326, 2326,  377, 1731, 2326, 2326, 1707,  377, 1732,
-     1735,  377,  492,  492, 1723,  377,  463,  463, 2326, 2326,
-     2326, 1733,  377,  492,  469,  470,  471,  472,  473,  473,
-      473,  473,  473,  473,  474, 1943, 1943, 1943, 2326, 2326,
-     2326,  492,  492,  492, 1734,  492, 1736, 1738, 1739,  377,
-      377,  377, 1733,  377,  492, 1944, 2326, 2326, 2326, 2326,
-     2326,  469,  470,  471,  472,  473,  473,  473,  473,  473,
-      473,  474,  492,  492,  492, 1740,  492, 1736, 1738, 1739,
-      377, 1742, 1577,  532,  533,  534,  535,  536,  536,  536,
-      536,  536,  536,  537, 1743, 1744, 1745, 1746, 1747, 1749,
-
-     1757, 2326, 1770, 2326, 2326, 2326, 1740, 2326, 2326, 1868,
-     1868, 1868, 1742, 2326, 2326, 1771, 2326, 2019, 2326, 1751,
-     1648, 1648, 2326, 1869, 1752, 1743, 1744, 1745, 1746, 1747,
-     1749, 1757, 1753, 1770,  639,  640,  641,  642,  643,  643,
-      643,  643,  643,  643,  644, 1754, 1771,  639,  640,  641,
-      642,  643,  643,  643,  643,  643,  643,  644, 1405, 1271,
-     1271, 2326, 2326, 1531, 1655, 1648, 1648, 2326, 2326, 1656,
-     2326, 1408, 2326, 1405, 1271, 1271, 1754, 1657, 1531, 2326,
-     1773, 1748, 2326,  377, 1532, 1774, 1408, 1405, 1271, 1271,
-     1658, 1870, 1531, 1405, 1271, 1271, 2326,  377, 1531, 1532,
-
-     1408, 1755, 2326, 1407, 1407, 1776, 1408,  377, 1788, 1407,
-     1407, 1773, 1748, 1532,  377, 1532, 1774, 2326, 1789, 1532,
-     2326, 1658, 1758, 1271, 1271, 2326,  377, 1656,  377, 2326,
-     1532, 2326, 1655, 1648, 1648, 1657, 1776, 1656,  377, 1788,
-     1533, 1775, 2326, 1794, 1532, 1657, 1659,  377, 1658, 1789,
-     1532, 1760, 1271, 1271, 2326, 1756, 1752,  377, 1658, 2326,
-     1758, 1271, 1271, 1781, 1753, 1656, 1778, 1778, 1778, 1533,
-      377,  377, 1775, 1762, 1794, 1539, 1782, 1754,  377, 1658,
-     1758, 1271, 1271, 2326, 2326, 1656, 1658, 1795, 2326, 1658,
-     1758, 1271, 1271, 1657, 1781, 1656, 1779,  377, 1791, 2326,
-
-     2326,  377,  377, 1657, 1759, 1783, 1658, 1782, 1754, 1785,
-     1785, 1785, 1790,  377, 1659,  377, 1658, 1658, 1795, 1765,
-      377,  377, 2326, 1763, 1799, 1800, 1801, 1779,  377, 1791,
-     1792, 1792, 1792, 1761, 1806, 1807, 1783, 1658, 1808, 1786,
-     1809, 2326, 1759, 1790,  377, 1320,  377, 1658, 1780, 2326,
-     1765,  377,  377, 1766, 1763, 1799, 1800, 1801, 1810, 1811,
-     2326, 2326, 1759, 2326, 2326, 1806, 1807, 2326, 2326, 1808,
-     1786, 1809, 1764,  639,  640,  641,  642,  643,  643,  643,
-      643,  643,  643,  644, 1766, 1767, 1768, 1812, 1815, 1810,
-     1811, 1787,  639,  640,  641,  642,  643,  643,  643,  643,
-
-      643,  643,  644, 1816, 1817, 1818, 1819, 1820, 2326, 2326,
-     2326, 2326, 1793, 2326, 2326, 2326, 1767, 1768, 1812, 1815,
-     1769,  675,  676,  677,  678,  679,  679,  679,  679,  679,
-      679,  680, 2326, 2326, 1816, 1817, 1818, 1819, 1820, 1772,
-      675,  676,  677,  678,  679,  679,  679,  679,  679,  679,
-      680, 1769, 1688, 1688, 1688, 1803, 1803, 1803, 2326,  675,
-      676,  677,  678,  679,  679,  679,  679,  679,  679,  680,
-     1772, 1821, 1822, 1825, 1826, 1827, 1828, 1829, 1830, 1831,
-     2326,  377, 1689, 1842, 1843, 1804, 1979, 1979, 1979,  711,
-      712,  713,  714,  715,  715,  715,  715,  715,  715,  716,
-
-     1832, 1837, 1821, 1822, 1825, 1826, 1827, 1828, 1829, 1830,
-     1831,  377,  377, 1689, 1842, 1843, 1804, 1834, 1834, 1834,
-     1844, 1845, 1846, 1847, 2326, 2326, 1873, 1873, 1873, 2326,
-     2326, 1832, 1837, 2326, 1690, 1838,  492, 1805, 1840, 1848,
-     1841, 1440,  377,  492,  492, 1867, 1839, 1835, 1872,  377,
-      377, 1844, 1845, 1846, 1847,  469,  470,  471,  472,  473,
-      473,  473,  473,  473,  473,  474, 1838,  492, 1980, 1840,
-     1848, 1841, 1853,  377,  492,  492, 1867, 1839, 1835, 1872,
-      377,  377, 2326, 2326, 2326,  469,  470,  471,  472,  473,
-      473,  473,  473,  473,  473,  474, 1854, 1875,  377, 1836,
-
-      377, 1879, 1880, 1853,  377, 2326, 2326, 2326, 1874, 2326,
-     2326,  639,  640,  641,  642,  643,  643,  643,  643,  643,
-      643,  644, 2326, 2326, 2326, 1881, 1884, 1854, 1875,  377,
-     1889,  377, 1879, 1880, 1890, 2326,  639,  640,  641,  642,
-      643,  643,  643,  643,  643,  643,  644, 1405, 1271, 1271,
-     2326, 2326, 1531, 1760, 1271, 1271, 1881, 1884, 1752, 2326,
-     1408, 1889, 1751, 1648, 1648, 1890, 1753, 1752, 1891, 1760,
-     1271, 1271, 1882, 1532, 1752, 1753, 1894, 1895,  377, 1754,
-     2326, 1855, 1753, 1876, 2326, 1760, 1271, 1271, 1754, 2326,
-     1752, 1896, 1760, 1271, 1271, 1754, 1883, 1752, 1856, 1891,
-
-      377, 1897,  377, 1882, 1532, 1753, 1898, 1894, 1895,  377,
-     1754, 1754, 1855, 2326, 1876, 1760, 1271, 1271, 1754, 1754,
-     1752, 2326, 1896, 2326, 1899, 1900, 1754, 1883, 1753, 1533,
-     2326,  377, 1897,  377, 2326, 1761, 2326, 1898, 2326, 2326,
-     1901, 1754, 1754, 2326, 1755, 2326, 2326, 2326, 1902, 1754,
-     2326, 1761, 1751, 1648, 1648, 1899, 1900, 1752, 1857, 2326,
-     1778, 1778, 1778, 2326, 2326, 1753, 2326, 1761, 1758, 1271,
-     1271, 1901, 1754, 1656, 1858, 1758, 1271, 1271, 1754, 1902,
-     1656, 1657, 1760, 1271, 1271, 2326, 2326, 1752, 1657, 1857,
-     1779, 1760, 1271, 1271, 1658, 1753, 1752, 1761, 1655, 1648,
-
-     1648, 1658, 1903, 1656, 1753, 1758, 1271, 1271, 1754, 1754,
-     1656, 1762, 1904, 1905, 1655, 1648, 1648, 1754, 1657, 1656,
-     1906, 1779, 1907, 1908, 1658, 1658, 2326, 1657, 1862, 2326,
-     1909, 1658, 1658, 1903, 1859, 1913, 1914, 1915, 1924, 1754,
-     1658, 1925, 1780, 1904, 1905, 1877, 1877, 1877, 1754, 2326,
-     1759, 1906, 1926, 1907, 1908, 1658, 2326, 1860, 1864, 1862,
-     1450, 1909, 1658, 2326, 1761, 2326, 1913, 1914, 1915, 1924,
-     2326, 1658, 1925, 1861, 2326, 2326, 1792, 1792, 1792, 2326,
-     1659, 2326, 2326, 1926, 2326, 2326, 2326, 1759, 2326, 1864,
-     1865, 1320, 2326, 1785, 1785, 1785, 1863, 1930,  492,  639,
-
-      640,  641,  642,  643,  643,  643,  643,  643,  643,  644,
-      639,  640,  641,  642,  643,  643,  643,  643,  643,  643,
-      644, 1865, 1866, 1786, 1981, 1981, 1981, 1878, 1930,  492,
-      675,  676,  677,  678,  679,  679,  679,  679,  679,  679,
-      680,  675,  676,  677,  678,  679,  679,  679,  679,  679,
-      679,  680, 1871, 1866, 1786, 1886, 1886, 1886, 1793, 1892,
-     1892, 1892, 2326,  675,  676,  677,  678,  679,  679,  679,
-      679,  679,  679,  680, 1469, 1787, 2326, 1803, 1803, 1803,
-     1823, 1823, 1823, 1871,  492, 1887, 1934, 1935, 1936, 1937,
-     1927,  711,  712,  713,  714,  715,  715,  715,  715,  715,
-
-      715,  716,  377,  492, 1942, 1910, 1982, 1804, 1911, 1928,
-     1928, 1928, 1950, 2326, 1933,  492, 1887, 1934, 1935, 1936,
-     1937, 1927, 1912, 1959, 1498, 1834, 1834, 1834, 2326, 1961,
-     1849, 1849, 1849,  377,  492, 1942, 1910, 1888, 1804, 1911,
-     2326, 1893, 2326, 1950, 1850, 1933, 2326, 2326, 1951, 1951,
-     1951, 2326, 1957, 1912, 1959, 1835, 1962, 1963, 2326, 1805,
-     1961,  377, 1824, 1916, 2326, 1964, 1960, 1958, 1966, 1917,
-     1931, 1952,  377, 1918, 1919, 1868, 1868, 1868, 1920, 1921,
-     1922, 2326, 1923, 1957, 2326, 2326, 1835, 1962, 1963, 1869,
-     2326, 1929,  377, 2326, 1916, 1932, 2326, 1960, 1958, 1966,
-
-     1917, 1931, 1952,  377, 1918, 1919, 2326, 1836, 2326, 1920,
-     1921, 1922, 1851, 1923,  469,  470,  471,  472,  473,  473,
-      473,  473,  473,  473,  474, 1969, 1932, 1938, 1938, 1938,
-     1953, 2326, 2326, 2326, 2326,  469,  470,  471,  472,  473,
-      473,  473,  473,  473,  473,  474, 1405, 1271, 1271, 2326,
-     1939, 1531, 2326, 2326, 1970, 2326, 1969, 1870, 2326, 1408,
-     1751, 1648, 1648, 1971, 2326, 1752, 1760, 1271, 1271, 1940,
-     2326, 1752, 1532, 1856, 1948, 1751, 1648, 1648, 2326, 1753,
-     1752, 1939, 1760, 1271, 1271, 1970, 1754, 1752, 1753, 1946,
-     1965,  377, 1754, 2326, 1971, 1753, 1972, 2326, 2326, 2326,
-
-     1940, 1754, 2326, 1532, 2326, 1948, 2326, 2326, 1754, 1941,
-     1943, 1943, 1943, 1973,  640, 2326, 1974, 1754, 1975, 2326,
-     1946, 1965,  377, 1754, 1758, 1271, 1271, 1972, 1533, 1656,
-     1944, 2326, 1754, 1760, 1271, 1271, 1976, 1657, 1752, 1754,
-     1977, 1978, 1755, 1984, 1973, 1986, 1753, 1974, 1761, 1975,
-     1658, 2326, 2326, 1758, 1271, 1271, 2326, 1859, 1656, 1754,
-     1758, 1271, 1271, 2326, 1858, 1656, 1657, 1976, 2326, 2326,
-     2326, 1977, 1978, 1657, 1984, 2326, 1986, 1989, 1990, 1658,
-     1481, 1658, 1886, 1886, 1886, 1485, 1658, 1947, 2326, 2326,
-     1754,  639, 1945,  641,  642,  643,  643,  643,  643,  643,
-
-      643,  644, 1991, 1992, 2326, 1949, 1860, 1993, 1989, 1990,
-     1658, 1481, 1887, 2326, 2326, 1861, 1485, 1658, 1947,  675,
-      676,  677,  678,  679,  679,  679,  679,  679,  679,  680,
-     1994, 2326, 1997, 1991, 1992, 1759, 1949, 2326, 1993, 2326,
-     2326, 2326, 1764, 1887,  675,  676,  677,  678,  679,  679,
-      679,  679,  679,  679,  680, 1954, 1954, 1954, 1998, 1995,
-     2326, 1994, 1996, 1997, 1888, 1873, 1873, 1873, 1877, 1877,
-     1877, 1967, 1967, 1967, 1999, 1955, 1892, 1892, 1892, 2002,
-     1440, 2005, 2000, 1450, 2006, 2007, 1578, 2003, 2008, 1998,
-     1995, 1469, 2001, 1996, 2004,  377, 1928, 1928, 1928, 2009,
-
-     2013, 2014, 2015, 2016, 2017, 1999, 2326, 2326, 2326, 2326,
-     2002, 1498, 2005, 2000, 2326, 2006, 2007, 2326, 2003, 2008,
-     2018, 2010, 2326, 2001, 2326, 2004,  377, 2326, 2326, 2326,
-     2009, 2013, 2014, 2015, 2016, 2017,  711, 1956,  713,  714,
-      715,  715,  715,  715,  715,  715,  716, 1874, 2011, 2326,
-     1878, 2018, 2010, 1968, 2020, 2020, 2020, 2326, 1893,  469,
-      470,  471,  472,  473,  473,  473,  473,  473,  473,  474,
-     2021, 2326, 2012, 2326, 2326, 1938, 1938, 1938, 1929, 2011,
-      492, 2326, 2326, 2026, 2027, 2032, 2326,  469,  470,  471,
-      472,  473,  473,  473,  473,  473,  473,  474, 1939, 2326,
-
-     2033, 2326, 2326, 2012, 2326, 2326, 2326, 2029, 2029, 2029,
-     2326,  492,  653,  653, 2026, 2027, 2032, 1940,  638, 1951,
-     1951, 1951, 2034, 2030, 2326, 1760, 1271, 1271, 2326, 1939,
-     1752, 2033, 2035,  377, 2326, 2036, 2022, 2037, 1753, 1758,
-     1271, 1271, 1952, 2038, 1656,  638,  638,  638, 1940,  638,
-     2039, 1754, 1657, 2034,  377, 2326, 2024, 1941, 2326, 2023,
-     1954, 1954, 1954, 2035,  377, 1658, 2036,  377, 2037, 2326,
-     2326, 2042, 2043, 1952, 2038, 2326,  638, 2326, 1943, 2025,
-     1955, 2039, 1754, 2326, 2326,  377,  640, 2326, 2044, 2031,
-     2023, 1967, 1967, 1967,  727,  727, 1658, 2326,  377, 2046,
-
-      710, 1953, 2042, 2043, 2047, 2048, 1578, 1761,  675,  676,
-      677,  678,  679,  679,  679,  679,  679,  679,  680, 2044,
-     2049, 1759, 2051, 2052, 2053, 2053, 2053,  710,  710,  710,
-     2046,  710, 2055, 2057, 2059, 2047, 2048, 1987, 1987, 1987,
-     2060, 2061, 2028, 2062, 2063, 2064, 2065, 2066, 2326, 2067,
-     2068, 2049, 2069, 2051, 2052, 2070, 2071, 2072,  710, 2073,
-     1954, 2074, 2078, 2055, 2057, 2059, 2079, 2081, 2084, 2326,
-     2326, 2060, 2061, 1968, 2062, 2063, 2064, 2065, 2066, 2056,
-     2067, 2068, 2075, 2069, 2076, 2326, 2070, 2071, 2072, 2326,
-     2073, 2326, 2074, 2078, 1943, 1943, 1943, 2079, 2081, 2084,
-
-     2020, 2020, 2020, 2087, 2087, 2087, 2054, 1760, 1271, 1271,
-     2056, 2326, 1752, 2075, 1944, 2076, 2021, 2326, 2326, 1988,
-     1753,  469,  470,  471,  472,  473,  473,  473,  473,  473,
-      473,  474, 2085, 1754, 2326, 2326, 2326, 2086,  469,  470,
-      471,  472,  473,  473,  473,  473,  473,  473,  474,  492,
-     2083, 1954, 1954, 1954, 2326,  377, 2029, 2029, 2029, 2091,
-     2077, 2092, 2093, 2085, 1754, 2082, 2094, 2095, 2086, 2326,
-     2326, 1955, 2030, 2089, 2089, 2089, 2019, 2040, 2040, 2040,
-      492, 2083, 2022, 2096,  377, 2088,  377, 2097, 2105, 1761,
-     2091, 2077, 2092, 2093, 2326, 2108, 2082, 2094, 2095, 2109,
-
-      675,  676,  677,  678,  679,  679,  679,  679,  679,  679,
-      680, 2098, 2098, 2098, 2096,  377,  640, 2110, 2097, 2105,
-     2101, 2101, 2101, 2106, 2106, 2106, 2108, 2053, 2053, 2053,
-     2109, 2111, 2113, 2028, 2102, 2114, 2115, 2116, 2031, 2117,
-     2118, 2119, 2112, 2120, 2121, 2122, 2123, 2124, 2110, 2125,
-     2126, 2127, 2127, 2127, 2326, 2090, 2087, 2087, 2087, 2041,
-     2326, 2326, 2111, 2113, 2131, 2129, 2114, 2115, 2116, 2132,
-     2117, 2118, 2119, 2133, 2120, 2121, 2122, 2123, 2124, 2326,
-     2125, 2126,  469,  470,  471,  472,  473,  473,  473,  473,
-      473,  473,  474, 2099,  492, 2131, 2129, 2134, 2136, 2137,
-
-     2132, 2138, 2103, 2139, 2133, 2107, 2130, 2326, 2140, 2054,
-      469,  470,  471,  472,  473,  473,  473,  473,  473,  473,
-      474, 2326, 2326, 2326, 2326,  492, 2326, 2326, 2134, 2136,
-     2137, 2326, 2138, 2128, 2139, 2141,  377, 2130, 2088, 2140,
-     2144, 2326, 2089, 2089, 2089, 2145, 2146, 2135, 2142, 2142,
-     2142, 2147, 2152,  675,  676,  677,  678,  679,  679,  679,
-      679,  679,  679,  680, 2153, 2155, 2141,  377, 2098, 2098,
-     2098, 2144, 2101, 2101, 2101, 2156, 2145, 2146, 2135, 2148,
-     2148, 2148, 2147, 2152, 2157, 2326, 2102, 2106, 2106, 2106,
-     2326, 2158, 2159, 2326, 2160, 2153, 2155, 2326, 2161, 2326,
-
-     2162, 2163, 2164,  640, 2165, 2166, 2156, 2167, 2168, 2169,
-     2170, 2127, 2127, 2127, 2171, 2157, 2149,  492, 2173, 2326,
-     2174, 2150, 2158, 2159, 2090, 2160, 2175, 2172, 2154, 2161,
-     2143, 2162, 2163, 2164, 2176, 2165, 2166, 2177, 2167, 2168,
-     2169, 2170, 2326, 2326, 2326, 2171, 2326, 2149,  492, 2173,
-     2099, 2174, 2150, 2326, 2103, 2326, 2326, 2175, 2172, 2154,
-     2326, 2151, 2326, 2178, 2179, 2176, 2180, 2326, 2177, 2107,
-      469,  470,  471,  472,  473,  473,  473,  473,  473,  473,
-      474,  675,  676,  677,  678,  679,  679,  679,  679,  679,
-      679,  680, 2184, 2128, 2178, 2179, 2185, 2180, 2142, 2142,
-
-     2142, 2148, 2148, 2148, 2186, 2187, 2188, 2326, 2189, 2190,
-     2191, 2192, 2326, 2193, 2194, 2195, 2196, 2197, 2198, 2199,
-     2200, 2201, 2202, 2184,  640, 2203,  492, 2185, 2205, 2206,
-     2207, 2208, 2209, 2210, 2211, 2186, 2187, 2188, 2149, 2189,
-     2190, 2191, 2192, 2150, 2193, 2194, 2195, 2196, 2197, 2198,
-     2199, 2200, 2201, 2202, 2204, 2212, 2203,  492, 2326, 2205,
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+
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+
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+
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+
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+
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+
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+
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+
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+
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+
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+
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+     1554, 1485, 2514, 2514, 2514, 1347,  493, 1494, 1486, 1487,
+
+     1560, 1498, 2514,  378,  464, 2514, 2514, 2514,  493,  376,
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+     2514, 2514, 2514, 2514, 2514,  378, 2514, 2514, 2514,  378,
+
+     2514, 2514, 2514,  711, 1503,  376,  376,  376, 2514,  376,
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+
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+
+      474,  475,  470,  471,  472,  473,  474,  474,  474,  474,
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+     2514, 2514, 1655, 1656, 1581, 2514,  641,  642,  643,  644,
+
+      645,  645,  645,  645,  645,  645,  646, 1608,  533,  534,
+      535,  536,  537,  537,  537,  537,  537,  537,  538, 1581,
+     1657, 1441, 1295, 1295, 2514, 1581, 1580, 1441, 1295, 1295,
+     2514, 1658, 1580, 1659, 1444, 2514, 2514, 2514, 1608,  378,
+     1584, 2514, 2514, 2514, 1582, 2514, 1581, 2514, 2514, 2514,
+     1582, 1657, 1581, 2514, 2514, 1441, 1295, 1295,  378, 2514,
+     1580,  397, 1658, 1605, 1659, 1660, 1661, 1609, 1444, 2514,
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+     1581, 1665, 1666, 1581,  641,  642,  643,  644,  645,  645,
+      645,  645,  645,  645,  646, 1594, 1660, 1661, 1609, 1478,
+
+     1478, 1478, 1582, 1662,  399, 1663, 1664, 1607, 1582, 1580,
+     1440, 1581, 1665, 1666, 1479, 2514,  378, 2514, 2514, 2514,
+     1586, 2514,  378, 2514, 1595, 1443, 1594, 2514,  378, 1688,
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+      641,  642,  643,  644,  645,  645,  645,  645,  645,  645,
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+     1688,  493,  641,  642,  643,  644,  645,  645,  645,  645,
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+     1611, 2514, 2514, 1443, 1443, 1587, 1443, 1443, 1443, 1443,
+     1443, 1443, 1443, 1443, 1443, 1440, 1441, 1295, 1295, 1440,
+
+     1440, 1580, 1440, 1440, 1440, 1440, 1440, 1440, 1440, 1444,
+     1440, 1440, 1586, 1440, 1440, 1440, 1440, 1596,  378, 1690,
+     1691, 1590, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,  378, 2514,
+     1597, 2514, 2514, 2514, 1610, 1692, 2514, 2514, 1596, 2514,
+     1690, 1691, 1590, 2514,  378, 1488, 1488, 1488,  676,  677,
+      678,  679,  680,  680,  680,  680,  680,  680,  681, 1598,
+     1489, 1597, 2514, 2514, 2514, 1610, 1692, 1591, 2514, 2514,
+     2514, 1440, 1440, 2514, 1440,  676,  677,  678,  679,  680,
+      680,  680,  680,  680,  680,  681, 2514, 2514, 2514, 2514,
+
+     1598, 2514, 1617,  378, 1613, 2514,  378,  676,  677,  678,
+      679,  680,  680,  680,  680,  680,  680,  681, 2514, 2514,
+     1614, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,  464,
+     2514, 2514, 2514, 1617,  376, 1613, 1618, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 1614, 1616,  378, 2514, 2514, 2514, 1615, 2514,  378,
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+     2514, 2514,  376, 2514, 1478, 1622, 2514, 2514, 2514, 2514,
+
+     2514, 1694,  378, 1693, 1623,  378,  493, 1627, 2514, 2514,
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+     2514, 1681, 2514,  376, 1695, 1488, 2514, 1632, 2514, 1667,
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+     1667, 2514,  376,  376,  376, 2514,  376, 2514, 2514,  378,
+     1669, 2514, 1637, 2514, 2514, 2514, 2514, 2514,  464, 1696,
+
+     1668, 2514, 1697,  376, 1638, 1680, 2514, 2514, 2514,  378,
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+      376,  376,  376, 1670,  376, 1686, 1701, 1702, 1703,  378,
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+     1700,  376, 2514, 1543, 2514, 2514, 1686, 1701, 1702, 1703,
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+     1676, 2514, 1731, 1585, 1746, 2514,  711,  378,  470,  471,
+      472,  473,  474,  474,  474,  474,  474,  474,  475,  470,
+
+      471,  472,  473,  474,  474,  474,  474,  474,  474,  475,
+     1677, 1687, 1704, 1731, 2514, 1746, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514,  470,  471,  472,  473,  474,  474,
+      474,  474,  474,  474,  475, 2514, 2514, 2514, 2514, 1747,
+     1755, 2514, 1687, 1704, 2514,  533,  534,  535,  536,  537,
+      537,  537,  537,  537,  537,  538,  641,  642,  643,  644,
+      645,  645,  645,  645,  645,  645,  646, 1441, 1295, 1295,
+     1747, 1755, 1580, 1441, 1295, 1295, 2514, 2514, 1580, 2514,
+     1444, 2514, 1441, 1295, 1295, 2514, 1444, 1580, 1707, 1708,
+     1708, 2514, 1581, 1580,  723, 1444, 1726,  378, 1581, 2514,
+
+      397, 1584, 1729, 1441, 1295, 1295,  939, 1581, 1580, 1715,
+     1708, 1708,  756, 1581, 1716, 1705, 1444,  378,  723, 2514,
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+      725, 2514, 2514, 1761, 1718, 2514, 2514,  939, 1581, 2514,
+     2514, 2514, 1762,  756, 1581, 1763, 1705, 1768, 1582, 2514,
+     2514, 2514, 2514, 2514, 1582, 1756, 1720,  711, 1759, 1581,
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+     1441, 1295, 1295, 1762, 2514, 1580, 1763, 2514, 1768, 2514,
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+     1719, 1735,  399, 1721, 1773, 1581,  641,  642,  643,  644,
+
+      645,  645,  645,  645,  645,  645,  646,  641,  642,  643,
+      644,  645,  645,  645,  645,  645,  645,  646, 1774, 1722,
+     1770, 2514, 1735,  399, 2514, 1773, 1581, 2514, 2514, 2514,
+     1723,  378,  676,  677,  678,  679,  680,  680,  680,  680,
+      680,  680,  681, 2514, 2514, 2514, 2514,  378, 2514, 1774,
+     1711, 1712, 1711, 1711, 1711, 1711, 1711, 1711, 1711, 1711,
+     1711, 1723, 1724, 2514, 2514, 2514, 2514, 2514, 2514, 1732,
+      676,  677,  678,  679,  680,  680,  680,  680,  680,  680,
+      681, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 1724, 2514, 2514, 2514, 2514, 1775, 1733,
+
+     1732, 1734, 2514, 2514, 2514, 2514, 2514,  676,  677,  678,
+      679,  680,  680,  680,  680,  680,  680,  681, 1739, 1771,
+     1748, 1776, 1777, 1741,  378, 1740, 2514, 2514, 2514, 1775,
+     1733, 2514, 1734, 1780, 1751, 1751, 1751, 1772, 1742, 2514,
+     2514, 2514, 1781, 2514,  378, 2514, 2514,  378, 2514, 1739,
+     1771, 1748, 1776, 1777, 1741, 1778, 1740, 1630, 1630, 1630,
+     1782, 1783,  378, 1752, 1780, 1749, 1779,  378, 1772, 1742,
+      378, 1784, 1631, 1781, 1754,  378, 2514, 2514, 2514, 2514,
+     2514, 1785, 1786,  378, 2514, 1787, 1778, 1788, 2514, 2514,
+      464, 1782, 1783, 2514, 1752,  376, 1749, 1779, 1789, 1792,
+
+     1790, 1793, 1784, 1794, 1795, 1754, 1802,  378, 2514, 2514,
+     2514, 2514, 1785, 1786, 2514, 1753, 1787, 1760, 1788, 2514,
+      378, 1791,  376,  376,  376, 2514,  376, 1806,  493, 1789,
+     1792, 1790, 1793,  493, 1794, 1795,  493,  493, 1757, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 1760, 2514,
+     2514, 2514, 1791,  376, 1805, 1630, 1803,  378, 1806,  493,
+     2514,  493,  493,  493,  493, 1807, 1810,  493,  493, 1796,
+      470,  471,  472,  473,  474,  474,  474,  474,  474,  474,
+      475, 2514, 1811, 1808, 1812, 1800, 1813, 1803, 1815,  378,
+      493, 1804,  493,  493,  493, 2514, 1807, 1810, 1816, 2514,
+
+     1796, 2514,  470,  471,  472,  473,  474,  474,  474,  474,
+      474,  474,  475, 1811, 1808, 1812, 1800, 1813, 2514, 1815,
+      378,  493, 1804,  378, 1817, 1818,  378, 1819, 1821, 1816,
+      378,  470,  471,  472,  473,  474,  474,  474,  474,  474,
+      474,  475,  533,  534,  535,  536,  537,  537,  537,  537,
+      537,  537,  538, 1829, 2514, 1817, 1818, 1848, 1819, 1821,
+     2514, 1863, 2514,  641,  642,  643,  644,  645,  645,  645,
+      645,  645,  645,  646, 1441, 1295, 1295, 2514, 1864, 1580,
+     1823, 1708, 1708, 2514, 1829, 1824, 2514, 1444, 1848, 1715,
+     1708, 1708, 1863, 1825, 1716, 1869, 1820, 1870, 2514, 1581,
+
+     2514,  723, 1717, 1843, 2514, 1826, 1441, 1295, 1295, 1864,
+     2514, 1580, 1871,  939, 1718, 2514, 1441, 1295, 1295, 1444,
+     2514, 1580, 2514, 2514, 2514, 2514, 1869, 1820, 1870, 1444,
+     1581, 1581, 1443, 1441, 1295, 1295, 1826, 2514, 1580, 2514,
+     2514, 1581, 2514, 1871,  939, 1718, 1444, 2514, 2514, 1443,
+     2514, 1830, 1295, 1295, 2514, 1582, 1716, 1875, 1581, 1876,
+     2514, 1827, 1581, 2514, 1717, 2514, 1715, 1708, 1708, 2514,
+     1719, 1716, 1581, 1832, 1295, 1295, 1718, 2514, 1824, 1717,
+     1830, 1295, 1295, 2514, 2514, 1716, 1825, 1828, 1875, 1581,
+     1876, 1718, 2514, 1834, 2514, 2514, 2514, 1582, 1826, 1830,
+
+     1295, 1295, 2514,  378, 1716, 1718, 2514, 1718, 1830, 1295,
+     1295, 2514, 1717, 1716, 1588,  397, 2514, 1846, 1877, 1878,
+     1851, 1717, 1718,  723, 1718, 1844, 1883,  756, 1884, 1826,
+     2514,  711, 1831, 1718, 1885,  725, 1718, 1837, 1886, 1887,
+     2514, 1835, 2514, 2514, 2514, 1888, 2514, 1719, 1889, 1877,
+     1878, 1851, 1892, 1893, 1833, 1718, 1894, 1883,  756, 1884,
+     2514, 1831,  711, 2514, 1718, 1885,  725, 2514, 1837, 1886,
+     1887, 1838, 1835, 2514, 2514,  378, 1888, 1849, 1895, 1889,
+     1831, 2514, 2514, 1892, 1893, 2514, 2514, 1894, 2514, 1836,
+     1839,  641,  642,  643,  644,  645,  645,  645,  645,  645,
+
+      645,  646, 1838, 2514, 2514, 2514, 1840, 1841, 1849, 1895,
+      641,  642,  643,  644,  645,  645,  645,  645,  645,  645,
+      646, 1839, 2514,  378, 2514, 2514,  676,  677,  678,  679,
+      680,  680,  680,  680,  680,  680,  681, 1840, 1841, 2514,
+     2514, 2514, 2514, 1896, 1850, 2514,  676,  677,  678,  679,
+      680,  680,  680,  680,  680,  680,  681, 2514, 2514, 2514,
+      676,  677,  678,  679,  680,  680,  680,  680,  680,  680,
+      681,  397, 2514, 1847, 1896, 1850, 1853, 1853, 1853, 2514,
+     2514, 2514, 1897,  399,  378, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 1860, 1860, 1860, 2514, 2514, 2514, 2514, 2514,
+
+     2514, 1867, 1867, 1867, 1898, 1854, 2514, 2514, 1751, 1751,
+     1751, 1857, 1899, 1897,  399, 2514, 1347, 1900, 1901, 1856,
+      378, 1861, 2514, 2514, 2514, 1904, 2514, 1858, 1866, 2514,
+     2514, 2514, 1905, 1906, 1865, 1898, 1854, 1752,  378, 1890,
+     1890, 1890, 1857, 1899, 1907, 1880, 1880, 1880, 1900, 1901,
+     1856, 2514, 1861, 1902, 1902, 1902, 1904, 1855, 1858, 1866,
+      378, 1908, 1909, 1905, 1906, 1865,  378, 1910, 1752,  378,
+     1911, 1912, 2514, 1862, 1881, 1907,  378, 2514, 2514,  378,
+      493, 2514, 1868, 2514, 2514, 2514, 1915, 1915, 1915, 1753,
+     1922, 1926, 1908, 1909, 2514, 2514, 2514, 1920, 1910, 1923,
+
+     1927, 1911, 1912,  378,  493, 1881, 2514, 1928,  493, 1924,
+      378,  493, 1919,  493, 1930, 1916, 1931, 1932, 1933, 1913,
+     1891, 1922, 1926, 2514, 2514, 2514, 1882, 2514, 1920, 1925,
+     1923, 1927, 1957, 2514, 1903,  493, 2514, 1921, 1928,  493,
+     1924, 2514, 2514, 1960,  493, 1930, 1916, 1931, 1932, 1933,
+     1913,  470,  471,  472,  473,  474,  474,  474,  474,  474,
+      474,  475, 2514, 1957,  378, 2514, 2514, 1917, 1921, 2514,
+     2514, 2514, 2514, 1938, 1960,  378,  470,  471,  472,  473,
+      474,  474,  474,  474,  474,  474,  475,  470,  471,  472,
+      473,  474,  474,  474,  474,  474,  474,  475, 1934, 1934,
+
+     1934, 2514, 2514, 2514, 1938, 1964, 2514, 2514, 2514, 2514,
+     2514, 1965, 1935,  641,  642,  643,  644,  645,  645,  645,
+      645,  645,  645,  646, 1441, 1295, 1295, 2514, 1966, 1580,
+     1832, 1295, 1295, 2514, 2514, 1824, 1964, 1444, 2514, 1823,
+     1708, 1708, 1965, 1825, 1824, 1832, 1295, 1295, 2514, 1581,
+     1824,  378, 1825, 1969,  723, 1826, 1952, 1939, 1825, 1966,
+     1832, 1295, 1295, 2514, 1826, 1824,  939, 1970, 1975,  397,
+     1826, 1955, 1976, 1940, 2514, 1853, 1853, 1853, 2514, 1936,
+     1581,  756,  378, 2514, 1969, 1826, 1826,  378, 1939, 1832,
+     1295, 1295, 2514, 2514, 1824, 1826, 1977,  939, 1970, 1975,
+
+     2514, 1826, 1825, 1976, 1854, 1582, 1978, 2514, 1832, 1295,
+     1295, 1833,  756, 1824, 1826, 1981, 1826, 1823, 1708, 1708,
+     1827, 1825, 1824, 1830, 1295, 1295, 1833, 1977, 1716, 1982,
+     1825, 1941, 2514, 1826, 2514, 1854, 1717, 1978, 1830, 1295,
+     1295, 1833, 1826, 1716, 2514, 1826, 1981,  723, 1718, 1953,
+     1983, 1717, 1832, 1295, 1295,  711, 1855, 1824, 2514,  725,
+     1982, 2514, 1941, 1718, 1826, 1825, 1984, 1832, 1295, 1295,
+     1833, 2514, 1824, 1826, 2514, 2514, 2514, 1826, 1985, 1718,
+     1825, 1983, 1715, 1708, 1708, 2514,  711, 1716, 2514, 1942,
+      725, 2514, 1826, 1986, 1718, 1834, 1987, 1984, 1943, 2514,
+
+     1830, 1295, 1295, 2514, 1831, 1716, 1988, 1718, 1826, 1985,
+     2514, 1989, 1990, 1717, 1991, 1715, 1708, 1708, 1992, 1944,
+     1716, 1993, 1946, 1826, 1986, 1718, 1994, 1987, 1717, 1958,
+     1958, 1958, 2514, 1833, 2514, 2514, 2514, 1988, 1718, 1995,
+     1718, 1948, 1989, 1990, 1479, 1991, 2514, 1996, 1945, 1992,
+     2514, 2514, 1993, 1946, 2514,  378, 1718, 1994, 1962, 1962,
+     1962, 2514, 1997, 1719, 1867, 1867, 1867, 2514, 2514, 2514,
+     1995, 1718, 1948, 1489, 2514, 2514, 2514, 1949, 1996, 1347,
+     2514, 1831,  641,  642,  643,  644,  645,  645,  645,  645,
+      645,  645,  646, 1997, 2514, 2514, 1947,  641,  642,  643,
+
+      644,  645,  645,  645,  645,  645,  645,  646, 1949, 1950,
+     1959, 2514, 2514, 2514, 2514,  378, 2514,  676,  677,  678,
+      679,  680,  680,  680,  680,  680,  680,  681,  676,  677,
+      678,  679,  680,  680,  680,  680,  680,  680,  681, 1963,
+     1950, 1961, 1860, 1860, 1860, 1868, 1998, 2514, 2514, 2514,
+      676,  677,  678,  679,  680,  680,  680,  680,  680,  680,
+      681,  397, 2514, 1956, 2514, 2514, 2514, 2514, 2514, 2514,
+     2002, 1861, 1961,  399, 1972, 1972, 1972, 1998, 1979, 1979,
+     1979, 1880, 1880, 1880, 1890, 1890, 1890, 2003, 1902, 1902,
+     1902, 2004,  378, 1512, 2005, 2014, 2015, 2514, 2514, 2016,
+
+     2017, 2002, 1861, 1973,  399, 1967, 2021,  493, 1968,  493,
+     1881, 2028, 1999, 2514, 2514, 2000, 2514, 2514, 2003, 2514,
+     2514, 2514, 2004, 1862, 2514, 2005, 2014, 2015,  378, 2001,
+     2016, 2017, 2029,  493, 1973, 2030, 1967, 2021,  493, 1968,
+      493, 1881, 2028, 1999, 2026,  378, 2000,  493,  378, 2514,
+     2514, 2514, 2019, 2019, 2019, 1974, 2514, 2027, 2514, 1980,
+     2001, 2031, 1882, 2029,  493, 1891, 2030, 1544, 2032, 1903,
+     2006, 1915, 1915, 1915, 2023, 2026, 2007, 2514,  493, 2036,
+     2008, 2009, 2047, 2049, 2018, 2010, 2011, 2012, 2027, 2013,
+     2051,  723, 2031, 2042, 1934, 1934, 1934, 2048, 2052, 2032,
+
+     1916, 2006, 2514,  939, 2514, 2514, 2514, 2007, 1935, 2514,
+     2036, 2008, 2009, 2047, 2049, 2018, 2010, 2011, 2012, 2024,
+     2013, 2051, 2053, 2056, 2057, 2060, 2061, 2062, 2048, 2052,
+      378, 1916, 2514, 2020,  939, 2033, 2033, 2033,  470,  471,
+      472,  473,  474,  474,  474,  474,  474,  474,  475, 2025,
+     2024, 2063, 1917, 2053, 2056, 2057, 2060, 2061, 2062, 1958,
+     1958, 1958, 2514,  470,  471,  472,  473,  474,  474,  474,
+      474,  474,  474,  475, 1479, 1936, 2034, 1972, 1972, 1972,
+     2025, 2514, 2063, 2514, 2514, 1962, 1962, 1962, 2514,  470,
+      471,  472,  473,  474,  474,  474,  474,  474,  474,  475,
+
+     1489, 2064, 2514,  723, 2514, 2043, 1973, 2034, 2514, 2514,
+     2514,  711, 2514, 2514, 2514,  725, 2035,  641,  642,  643,
+      644,  645,  645,  645,  645,  645,  645,  646, 1441, 1295,
+     1295, 2514, 2064, 1580, 1823, 1708, 1708, 1973, 2065, 1824,
+     1959, 1444,  711, 1832, 1295, 1295,  725, 1940, 1824, 1823,
+     1708, 1708, 2514, 1581, 1824,  397, 1825, 2045, 1974, 1826,
+     2066, 2067, 1825, 2054, 2514, 2037, 1963,  756, 1826, 2065,
+     1832, 1295, 1295, 2514, 1826, 1824, 1830, 1295, 1295, 2068,
+     2514, 1716, 2514, 1825, 1581, 2058, 2058, 2058, 2514, 1717,
+     1826, 2066, 2067,  378, 2514, 1826, 2037, 2514,  756, 1826,
+
+     1631, 1718, 2514, 2514, 2514, 1826, 1832, 1295, 1295, 1582,
+     2068, 1824, 1830, 1295, 1295, 1827,  397, 1716, 2046, 1825,
+     2514, 2069, 2070, 2076, 1833, 1717, 1826, 2514,  399, 2082,
+     1943, 1826, 1718, 1830, 1295, 1295, 2085, 1718, 1716, 2086,
+     1525, 1529, 2087, 2088, 2089, 2038, 1717, 2514, 1979, 1979,
+     1979, 1942, 2069, 2070, 2076, 2039, 2514, 1944, 1718,  399,
+     2082, 2514, 1826, 1512, 2514, 2514, 2059, 2085, 1718, 2514,
+     2086, 1525, 1529, 2087, 2088, 2089, 2038, 2071, 2071, 2071,
+     2514, 2514, 2514,  378, 2514, 2514, 2039, 1945, 2514, 1718,
+     2514, 2514, 2514, 1831,  641,  642,  643,  644,  645,  645,
+
+      645,  645,  645,  645,  646, 2040, 2073, 2073, 2073, 2078,
+     2078, 2078, 2092, 2514, 1836,  676,  677,  678,  679,  680,
+      680,  680,  680,  680,  680,  681, 2055, 2514, 2095, 1980,
+     2514, 2050, 2080, 2080, 2080, 2096, 2040, 2083, 2083, 2083,
+     2090, 2090, 2090, 2092,  676,  677,  678,  679,  680,  680,
+      680,  680,  680,  680,  681, 2097, 2514, 2055, 2072, 2095,
+     2093,  378, 2050, 2094, 2098, 2100, 2096, 2103, 2104, 2105,
+     2106,  378, 2107, 2101, 2099, 2514, 2514, 2514, 2108, 2110,
+     2102, 2113, 2019, 2019, 2019, 2111, 2097, 2074, 2115,  493,
+     2079, 2093, 2514, 2514, 2094, 2098, 2100, 1544, 2103, 2104,
+
+     2105, 2106, 2514, 2107, 2101, 2099, 2114, 2116, 2117, 2108,
+      493, 2102, 2113, 2081, 2514, 2514, 2111, 2514, 2084, 2115,
+      493, 2091, 2514,  470,  471,  472,  473,  474,  474,  474,
+      474,  474,  474,  475, 2112, 2118, 2119, 2114, 2116, 2117,
+     2120,  493, 2514,  470,  471,  472,  473,  474,  474,  474,
+      474,  474,  474,  475, 2514, 2514,  378, 2033, 2033, 2033,
+     2514, 2514, 2130, 2020, 2514, 2112, 2118, 2119, 2514, 2131,
+     2514, 2120, 2514,  470,  471,  472,  473,  474,  474,  474,
+      474,  474,  474,  475, 1832, 1295, 1295, 2132, 2134, 1824,
+     1830, 1295, 1295, 2130,  723, 1716, 2125, 1825, 2034,  397,
+
+     2131, 2128,  723, 1717, 2126, 2135,  939, 2514, 2136, 1826,
+      711,  756, 2514, 2142,  725, 1718, 2143, 2121, 2132, 2134,
+     2122, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2034,
+     2514, 2514, 2514, 2138, 2138, 2138, 2135,  939, 2035, 2136,
+     1826,  711,  756, 2123, 2142,  725, 1718, 2143, 2121,  641,
+      642,  643,  644,  645,  645,  645,  645,  645,  645,  646,
+     2137, 2140, 2140, 2140, 2144, 1833, 2514, 2133, 2514, 2146,
+     2514, 1831,  676,  677,  678,  679,  680,  680,  680,  680,
+      680,  680,  681, 2514, 2514, 2514, 2058, 2058, 2058, 2147,
+     2148, 2137, 2149, 2151, 2152, 2144, 2514,  397, 2133, 2129,
+
+     2146, 1631,  378, 2155, 2514,  378, 2071, 2071, 2071,  399,
+     2160,  378, 2514, 2514, 2139, 2073, 2073, 2073, 2162, 2163,
+     2147, 2148, 2165, 2149, 2151, 2152, 2153, 2153, 2153, 2078,
+     2078, 2078, 2166, 2514, 2155, 2080, 2080, 2080, 2167, 2168,
+      399, 2160, 2141, 2083, 2083, 2083, 2090, 2090, 2090, 2162,
+     2163, 2169, 2170, 2165, 2171, 2514, 2514, 2172, 2173, 2174,
+     2175, 2157, 2156, 2166,  378, 2181, 2176, 2059, 2177, 2167,
+     2168, 2178, 2179, 2186, 2187, 2158, 2514, 2188, 2201, 2201,
+     2201, 2190, 2169, 2170, 2159, 2171, 2164, 2072, 2172, 2173,
+     2174, 2175, 2157, 2156, 2199, 2200, 2074, 2176, 2514, 2177,
+
+     2514, 2514, 2178, 2179, 2186, 2187, 2158, 2154, 2188, 2182,
+     2079, 2183, 2190, 2514, 2514, 2159, 2081, 2164, 2514, 2514,
+     2514, 2514, 2514, 2514, 2084, 2199, 2200, 2091, 2514,  470,
+      471,  472,  473,  474,  474,  474,  474,  474,  474,  475,
+     2182, 2514, 2183, 2203, 2203, 2203, 2514, 2514,  470,  471,
+      472,  473,  474,  474,  474,  474,  474,  474,  475, 2202,
+     2514, 2514, 2205, 2514, 2206,  470,  471,  472,  473,  474,
+      474,  474,  474,  474,  474,  475,  493,  493, 1832, 1295,
+     1295, 2209,  723, 1824, 2194, 2191, 2185, 2184, 2514, 2210,
+      723, 1825, 2195, 2205,  939, 2206, 2192, 2211,  711,  378,
+
+     2514, 2212,  725, 1826, 2138, 2138, 2138,  493,  493, 2213,
+     2213, 2213, 2209, 2221, 2221, 2221, 2191, 2185, 2184,  397,
+     2210, 2197, 2514, 2514, 2204,  939, 2220, 2192, 2211,  711,
+     2223,  756, 2212,  725, 1826,  641,  642,  643,  644,  645,
+      645,  645,  645,  645,  645,  646,  676,  677,  678,  679,
+      680,  680,  680,  680,  680,  680,  681, 2220, 2514, 1833,
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+     2140, 2140, 2216, 2216, 2216, 2224, 2225,  397, 2226, 2198,
+     2153, 2153, 2153, 2227, 2228, 2139, 2217, 2229, 2231,  399,
+     2214, 2207, 2232, 2233, 2222, 2234, 2235, 2236, 2230, 2237,
+
+     2238, 2239, 2208, 2240, 2241, 2242, 2224, 2225, 2243, 2226,
+     2244, 2245, 2249, 2514, 2227, 2228, 2514,  493, 2229, 2231,
+      399, 2253, 2207, 2232, 2233, 2514, 2234, 2235, 2236, 2251,
+     2237, 2238, 2239, 2208, 2240, 2241, 2242, 2514, 2514, 2243,
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+      474,  474,  475, 2254, 2250, 2255,  470,  471,  472,  473,
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+
+     2252, 2257, 2258,  723, 2254, 2261, 2255,  397,  723, 2264,
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+     2203, 2203, 2266, 2267, 2259, 2268,  939,  711,  399, 2270,
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+      678,  679,  680,  680,  680,  680,  680,  680,  681,  399,
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+     2213, 2216, 2216, 2216, 2277, 2277, 2277, 2281, 2282, 2221,
+
+     2221, 2221, 2284,  378, 2514, 2217, 2202, 2285, 2514, 2286,
+     2287, 2288, 2289, 2290, 2291, 2274, 2275, 2276, 2292, 2293,
+     2204, 2294, 2295, 2296, 2297, 2298, 2299, 2300, 2281, 2282,
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+     2293, 2306, 2294, 2295, 2296, 2297, 2298, 2299, 2300, 2309,
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+     2309, 2310,  493,  939, 2318,  470,  471,  472,  473,  474,
+
+      474,  474,  474,  474,  474,  475, 2514,  470,  471,  472,
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+     2311, 2514, 2514,  493,  939, 2318, 2319, 2247, 2307,  641,
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+      676,  677,  678,  679,  680,  680,  680,  680,  680,  680,
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+     2278, 2334, 2335, 2336, 2337, 2279, 2338,  399, 2339, 2340,
+
+     2341, 2342, 2343, 2344, 2351, 2329, 2345, 2346, 2347, 2348,
+     2349, 2330,  493, 2354, 2355, 2362, 2363, 2331, 2364, 2332,
+     2333, 2278, 2334, 2335, 2336, 2337, 2279, 2338,  399, 2339,
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+
+     2514, 2514, 2353,  711, 2370, 2371, 2374,  725, 2375, 2376,
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+     2383, 2384, 2385, 2386,  493,  399, 2387, 2388, 2389, 2514,
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+
+     2411, 2412, 2400, 2401, 2402, 2514,  470,  471,  472,  473,
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+     2416, 2417, 2378, 2378, 2378,  399,  470,  471,  472,  473,
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+     2436, 2428, 2514, 2429,  397, 2430, 2425, 2437, 2431, 2438,
+
+      378, 2434, 2434, 2434,  939,  711,  399, 2444, 2514,  725,
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+
+     2459,  723, 2476, 2456, 2463, 2477, 2478, 2464, 2514, 2479,
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+     2495, 2504, 2378, 2378, 2378, 2505, 2506, 2507, 2496, 2497,
+     2498, 2499, 2508, 2500, 2509, 2494, 2514, 2510, 2501, 2502,
+
+     2511, 2514, 2512, 2513, 2460, 2514, 2461, 2492, 2492, 2492,
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+
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+
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+
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+     2514, 2514, 2514,  361, 2514, 2514, 2514, 2514,  361,  361,
+      361,  361,  369,  369, 2514,  369,  369,  369,  369,  369,
 
       369,  369,  369,  369,  369,  369,  369,  369,  369,  369,
-      369,  369,  370,  370, 2326,  370,  370,  370,  370,  370,
-      370,  370,  370,  370,  370,  370,  370,  370,  370,  370,
-      370,  748,  748, 2326,  748,  748,  748,  748,  748,  748,
-      748,  748,  748,  748,  748,  748,  748,  748,  748,  748,
-      377,  377, 2326, 2326, 2326, 2326,  377, 2326, 2326, 2326,
-     2326,  377,  377,  377,  377,  464, 2326,  464,  464,  464,
-      464,  384,  384,  384, 2326, 2326, 2326,  384, 2326, 2326,
-     2326, 2326,  384,  384,  384,  384,  750, 2326,  750,  750,
-      750,  750,  455,  455, 2326, 2326, 2326, 2326,  455, 2326,
-
-     2326, 2326,  455,  455,  455,  455,  455,  837, 2326,  837,
-      837,  837,  837,  468,  468, 2326, 2326, 2326, 2326,  468,
-     2326, 2326, 2326, 2326,  468,  468,  468,  468,  486, 2326,
-      486,  486,  486,  486,  492,  492, 2326,  492,  492, 2326,
-      492,  492,  492,  492, 2326, 2326, 2326, 2326,  492,  492,
-      492,  492,  522, 2326,  522,  522,  522,  522,  524,  524,
-      524, 2326, 2326, 2326, 2326,  524, 2326, 2326, 2326, 2326,
-      524,  524,  524,  524,  859, 2326,  859,  859,  859,  859,
-      531,  531, 2326, 2326, 2326, 2326,  531, 2326, 2326, 2326,
-     2326,  531,  531,  531,  531,  559, 2326,  559,  559,  559,
-
-      559,  538,  538,  538, 2326, 2326, 2326,  538, 2326, 2326,
-     2326, 2326,  538,  538,  538,  538,  861, 2326,  861,  861,
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-     2326, 2326,  580, 2326,  580,  604,  604,  604,  604,  604,
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-      884,  884,  884,  611,  611,  611,  611,  611,  611, 2326,
-
-      611,  611,  611,  611,  611,  611, 2326,  611,  611,  611,
-      611,  611,  888,  888, 2326,  888,  888,  888,  888,  888,
-      888,  888,  888,  888,  888,  888,  888,  888,  888,  888,
-      888,  892,  892, 2326,  892,  892,  892,  892,  892,  892,
-      892,  892,  892,  892,  892,  892,  892,  892,  892,  892,
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-      624,  624,  624,  624, 2326,  624,  624,  624,  624,  626,
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+     2514, 2514, 2514,  456, 2514, 2514, 2514,  456,  456,  456,
+      456,  456,  465, 2514,  465,  465,  465,  465,  465,  465,
+      465,  469,  469, 2514, 2514, 2514,  469, 2514, 2514, 2514,
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+      487,  487,  487,  493,  493, 2514,  493,  493, 2514,  493,
+      493,  493, 2514, 2514, 2514, 2514,  493,  493,  493,  493,
+
+      523, 2514,  523,  523,  523,  523,  525,  525,  525, 2514,
+     2514, 2514,  525, 2514, 2514, 2514, 2514,  525,  525,  525,
+      525,  532,  532, 2514, 2514, 2514,  532, 2514, 2514, 2514,
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+      539, 2514, 2514, 2514, 2514,  539,  539,  539,  539,  551,
+      551, 2514, 2514, 2514,  551, 2514, 2514, 2514,  551,  551,
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+      606, 2514,  606,  606,  606,  606,  606,  612,  612,  612,
+
+      612,  612,  612,  612,  612,  612,  612,  612,  612,  612,
+      612,  612,  612,  612,  612,  613,  613,  613,  613,  613,
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+      628,  628,  628,  628,  628,  628,  628,  628,  628,  628,
+
+     2514,  628,  628,  628,  628,  633,  633, 2514,  633,  633,
+      633,  633,  633,  633,  633,  633,  633,  633,  633,  633,
+      633,  633,  633,  640,  640, 2514, 2514, 2514,  640, 2514,
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+      675,  675,  675,  675,  687, 2514,  687,  687,  687,  687,
+
+      687,  687,  690,  690, 2514, 2514, 2514,  690, 2514, 2514,
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+      704,  704,  704,  704,  704,  704,  704,  704,  704,  704,
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+      739,  739,  739,  739,  739,  739,  739,  739,  739,  361,
+
+      361,  361, 2514, 2514, 2514,  361, 2514, 2514, 2514, 2514,
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+      465,  465,  465,  465,  383,  383,  383, 2514, 2514,  383,
+
+     2514, 2514, 2514, 2514,  383,  383,  383,  383,  751, 2514,
+      751,  751,  751,  751,  456,  456, 2514, 2514, 2514,  456,
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+      493,  493,  493, 2514, 2514, 2514, 2514,  493,  493,  493,
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+      525,  525,  868, 2514,  868,  868,  868,  868,  532,  532,
+
+     2514, 2514, 2514,  532, 2514, 2514, 2514, 2514,  532,  532,
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+      539,  539,  870, 2514,  870,  870,  870,  870,  551,  551,
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+
+      895,  895,  895,  895,  613,  613,  613,  613,  613,  613,
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+      903,  903,  903,  903,  903,  903,  903,  903,  626,  626,
       626,  626,  626,  626,  626,  626,  626,  626,  626,  626,
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-
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-
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+
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       667,  667,  667,  667,  667,  667,  667,  667,  667,  667,
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-
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-      738,  738,  738,  738,  738,  738,  738,  738,  738,  738,
-
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-
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-      531,  531,  531,  531,  550,  550, 2326, 2326, 2326, 2326,
-
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-
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-     1088, 1088, 1088, 1088, 1088,  638,  638, 2326, 2326, 2326,
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-     1101, 1101, 1101, 1101, 1101, 1101, 1101, 1101, 1101,  666,
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-
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-      703,  703,  703,  703, 1115, 1115, 1115, 1115, 1115, 1115,
 
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-     1133, 1133, 1133, 1133, 1133, 1133,  369,  369, 2326,  369,
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+      923,  923,  923,  923,  923,  923,  923,  923,  923,  923,
+      675,  675, 2514, 2514, 2514,  675, 2514, 2514, 2514, 2514,
+      675,  675,  675,  675,  687, 2514,  687,  687,  687,  687,
+      690,  690, 2514, 2514, 2514,  690, 2514, 2514, 2514, 2514,
+      690,  690,  690,  690,  699, 2514,  699,  699,  699,  699,
+      703,  703, 2514,  703,  703,  703,  703,  703,  703,  703,
+      703,  703,  703,  703,  703,  703,  703,  703,  704,  704,
+
+     2514,  704,  704,  704,  704,  704,  704,  704,  704,  704,
+      704,  704,  704,  704,  704,  704,  934,  934, 2514,  934,
+      934,  934,  934,  934,  934,  934,  934,  934,  934,  934,
+      934,  934,  934,  934,  711,  711, 2514, 2514, 2514,  711,
+     2514, 2514, 2514, 2514,  711,  711,  711,  711,  729, 2514,
+      729,  729,  729,  729,  733,  733, 2514,  733,  733,  733,
+      733,  733,  733,  733,  733,  733,  733,  733,  733,  733,
+      733,  733,  739,  739, 2514,  739,  739,  739,  739,  739,
+      739,  739,  739,  739,  739,  739,  739,  739,  739,  739,
+      361,  361,  361, 2514, 2514, 2514,  361, 2514, 2514, 2514,
+
+     2514,  361,  361,  361,  361,  368,  368, 2514,  368,  368,
+      368,  368,  368,  368,  368,  368,  368,  368,  368,  368,
+      368,  368,  368,  369,  369, 2514,  369,  369,  369,  369,
       369,  369,  369,  369,  369,  369,  369,  369,  369,  369,
-      369,  369,  369,  369,  369,  953,  953, 2326,  953,  953,
-      953,  953,  953,  953,  953,  953,  953,  953,  953,  953,
-
-      953,  953,  953,  953,  377,  377, 2326, 2326, 2326, 2326,
-      377, 2326, 2326, 2326, 2326,  377,  377,  377,  377,  468,
-      468, 2326, 2326, 2326, 2326,  468, 2326, 2326, 2326, 2326,
-      468,  468,  468,  468,  492,  492, 2326, 2326, 2326,  492,
-      492,  492, 2326, 2326, 2326,  492,  492,  492,  492,  531,
-      531, 2326, 2326, 2326, 2326,  531, 2326, 2326, 2326, 2326,
-      531,  531,  531,  531,  560, 2326, 2326,  560, 2326,  560,
-      580, 2326, 2326,  580, 2326,  580, 1254, 1254, 1254, 1254,
-     1254, 1254, 1254, 1254, 1254, 1254, 1254, 1254, 1254, 1254,
-     1254, 1254, 1254, 1254, 1254, 1258, 1258, 1258, 1258, 1258,
-
-     1258, 1258, 1258, 1258, 1258, 1258, 1258, 1258, 1258, 1258,
-     1258, 1258, 1258, 1258, 1262, 1262, 1262, 1262, 1262, 1262,
-     1262, 1262, 1262, 1262, 1262, 1262, 1262, 1262, 1262, 1262,
-     1262, 1262, 1262,  630,  630, 2326,  630,  630,  630,  630,
-      630,  630,  630,  630,  630,  630,  630,  630,  630,  630,
-      630,  630, 1088, 1088, 2326, 1088, 1088, 1088, 1088, 1088,
-     1088, 1088, 1088, 1088, 1088, 1088, 1088, 1088, 1088, 1088,
-     1088,  638,  638, 2326, 2326, 2326, 2326,  638, 2326, 2326,
-     2326, 2326,  638,  638,  638,  638, 1101, 1101, 2326, 1101,
-     1101, 1101, 1101, 1101, 1101, 1101, 1101, 1101, 1101, 1101,
-
-     1101, 1101, 1101, 1101, 1101,  666,  666, 2326,  666,  666,
-      666,  666,  666,  666,  666,  666,  666,  666,  666,  666,
-      666,  666,  666,  666, 1106, 1106, 2326, 1106, 1106, 1106,
-     1106, 1106, 1106, 1106, 1106, 1106, 1106, 1106, 1106, 1106,
-     1106, 1106, 1106,  674,  674, 2326, 2326, 2326, 2326,  674,
-     2326, 2326, 2326, 2326,  674,  674,  674,  674,  689,  689,
-     2326, 2326, 2326, 2326,  689, 2326, 2326, 2326, 2326,  689,
-      689,  689,  689,  702,  702, 2326,  702,  702,  702,  702,
-      702,  702,  702,  702,  702,  702,  702,  702,  702,  702,
-      702,  702, 1115, 1115, 2326, 1115, 1115, 1115, 1115, 1115,
-
-     1115, 1115, 1115, 1115, 1115, 1115, 1115, 1115, 1115, 1115,
-     1115,  710,  710, 2326, 2326, 2326, 2326,  710, 2326, 2326,
-     2326, 2326,  710,  710,  710,  710, 1128, 1128, 2326, 1128,
-     1128, 1128, 1128, 1128, 1128, 1128, 1128, 1128, 1128, 1128,
-     1128, 1128, 1128, 1128, 1128, 1133, 1133, 2326, 1133, 1133,
+      369,  383,  383,  383, 2514, 2514,  383, 2514, 2514, 2514,
+     2514,  383,  383,  383,  383,  964,  964,  964,  964,  964,
+      964,  964,  964,  964,  964,  964,  964,  964,  964,  964,
+      964,  964,  964,  376,  376, 2514, 2514,  376,  376, 2514,
+     2514, 2514, 2514,  376,  376,  376,  376,  456,  456, 2514,
+     2514, 2514,  456, 2514, 2514, 2514,  456,  456,  456,  456,
+
+      456,  469,  469, 2514, 2514, 2514,  469, 2514, 2514, 2514,
+     2514,  469,  469,  469,  469,  493,  493, 2514, 2514,  493,
+      493, 2514, 2514, 2514, 2514,  493,  493,  493,  493,  525,
+      525,  525, 2514, 2514, 2514,  525, 2514, 2514, 2514, 2514,
+      525,  525,  525,  525,  539,  539,  539, 2514, 2514,  539,
+     2514, 2514, 2514, 2514,  539,  539,  539,  539,  532,  532,
+     2514, 2514, 2514,  532, 2514, 2514, 2514, 2514,  532,  532,
+      532,  532,  551,  551, 2514, 2514, 2514,  551, 2514, 2514,
+     2514,  551,  551,  551,  551,  551,  561, 2514,  561, 2514,
+      561,  581, 2514,  581, 2514,  581,  895,  895, 2514,  895,
+
+      895,  895,  895,  895,  895,  895,  895,  895,  895,  895,
+      895,  895,  895,  895,  899,  899, 2514,  899,  899,  899,
+      899,  899,  899,  899,  899,  899,  899,  899,  899,  899,
+      899,  899,  903,  903, 2514,  903,  903,  903,  903,  903,
+      903,  903,  903,  903,  903,  903,  903,  903,  903,  903,
+      632,  632, 2514,  632,  632,  632,  632,  632,  632,  632,
+      632,  632,  632,  632,  632,  632,  632,  632,  633,  633,
+     2514,  633,  633,  633,  633,  633,  633,  633,  633,  633,
+      633,  633,  633,  633,  633,  633, 1107, 1107, 1107, 1107,
+     1107, 1107, 1107, 1107, 1107, 1107, 1107, 1107, 1107, 1107,
+
+     1107, 1107, 1107, 1107,  640,  640, 2514, 2514, 2514,  640,
+     2514, 2514, 2514, 2514,  640,  640,  640,  640, 1118, 1118,
+     1118, 1118, 1118, 1118, 1118, 1118, 1118, 1118, 1118, 1118,
+     1118, 1118, 1118, 1118, 1118, 1118,  667,  667, 2514,  667,
+      667,  667,  667,  667,  667,  667,  667,  667,  667,  667,
+      667,  667,  667,  667,  668,  668, 2514,  668,  668,  668,
+      668,  668,  668,  668,  668,  668,  668,  668,  668,  668,
+      668,  668, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
+     1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
+      675,  675, 2514, 2514, 2514,  675, 2514, 2514, 2514, 2514,
+
+      675,  675,  675,  675,  690,  690, 2514, 2514, 2514,  690,
+     2514, 2514, 2514, 2514,  690,  690,  690,  690,  703,  703,
+     2514,  703,  703,  703,  703,  703,  703,  703,  703,  703,
+      703,  703,  703,  703,  703,  703,  704,  704, 2514,  704,
+      704,  704,  704,  704,  704,  704,  704,  704,  704,  704,
+      704,  704,  704,  704, 1133, 1133, 1133, 1133, 1133, 1133,
      1133, 1133, 1133, 1133, 1133, 1133, 1133, 1133, 1133, 1133,
-     1133, 1133, 1133, 1133,  377,  377, 2326,  377,  377, 2326,
-     2326, 2326, 2326,  377, 2326, 2326, 2326, 2326,  377,  377,
-      377,  377,  468,  468, 2326, 2326, 2326, 2326,  468, 2326,
-     2326, 2326, 2326,  468,  468,  468,  468,  492,  492, 2326,
-
-     2326, 2326,  492,  492, 2326, 2326, 2326, 2326,  492,  492,
-      492,  492,  531,  531, 2326, 2326, 2326, 2326,  531, 2326,
-     2326, 2326, 2326,  531,  531,  531,  531,  560, 2326, 2326,
-      560, 2326,  560,  580, 2326, 2326,  580, 2326,  580, 1254,
-     1254, 2326, 1254, 1254, 1254, 1254, 1254, 1254, 1254, 1254,
-     1254, 1254, 1254, 1254, 1254, 1254, 1254, 1254, 1258, 1258,
-     2326, 1258, 1258, 1258, 1258, 1258, 1258, 1258, 1258, 1258,
-     1258, 1258, 1258, 1258, 1258, 1258, 1258, 1262, 1262, 2326,
-     1262, 1262, 1262, 1262, 1262, 1262, 1262, 1262, 1262, 1262,
-     1262, 1262, 1262, 1262, 1262, 1262,  638,  638, 2326, 2326,
-
-     2326, 2326,  638, 2326, 2326, 2326, 2326,  638,  638,  638,
-      638, 1404, 1404, 1404, 1404, 1404, 1404, 1404, 1404, 1404,
-     1404, 1404, 1404, 1404, 1404, 1404, 1404, 1404, 1404, 1404,
-     1540, 1540, 1540, 1540, 1540, 1540, 1540, 1540, 1540, 1540,
-     1540, 1540, 1540, 1540, 1540, 1540, 1540, 1540, 1540, 1572,
-     1572, 1572, 1572, 1572, 1572, 1572, 1572, 1572, 1572, 1572,
-     1572, 1572, 1572, 1572, 1572, 1572, 1572, 1572, 1654, 1654,
-     1654, 1654, 1654, 1654, 1654, 1654, 1654, 1654, 1654, 1654,
-     1654, 1654, 1654, 1654, 1654, 1654, 1654, 1673, 1673, 1673,
-     1673, 1673, 1673, 1673, 1673, 1673, 1673, 1673, 1673, 1673,
-
-     1673, 1673, 1673, 1673, 1673, 1673, 1680, 1680, 1680, 1680,
-     1680, 1680, 1680, 1680, 1680, 1680, 1680, 1680, 1680, 1680,
-     1680, 1680, 1680, 1680, 1680, 1699, 1699, 1699, 1699, 1699,
-     1699, 1699, 1699, 1699, 1699, 1699, 1699, 1699, 1699, 1699,
-     1699, 1699, 1699, 1699, 1728, 1728, 1728, 1728, 1728, 1728,
-     1728, 1728, 1728, 1728, 1728, 1728, 1728, 1728, 1728, 1728,
-     1728, 1728, 1728, 1750, 1750, 1750, 1750, 1750, 1750, 1750,
-     1750, 1750, 1750, 1750, 1750, 1750, 1750, 1750, 1750, 1750,
-     1750, 1750, 1796, 1796, 1796, 1796, 1796, 1796, 1796, 1796,
-     1796, 1796, 1796, 1796, 1796, 1796, 1796, 1796, 1796, 1796,
-
-     1796,   57, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326, 2326,
-     2326, 2326, 2326, 2326, 2326
-
+     1133, 1133,  711,  711, 2514, 2514,  711,  711, 2514, 2514,
+     2514, 2514,  711,  711,  711,  711, 1145, 1145, 1145, 1145,
+     1145, 1145, 1145, 1145, 1145, 1145, 1145, 1145, 1145, 1145,
+
+     1145, 1145, 1145, 1145, 1150, 1150, 1150, 1150, 1150, 1150,
+     1150, 1150, 1150, 1150, 1150, 1150, 1150, 1150, 1150, 1150,
+     1150, 1150,  368,  368, 2514,  368,  368,  368,  368,  368,
+      368,  368,  368,  368,  368,  368,  368,  368,  368,  368,
+      964,  964, 2514,  964,  964,  964,  964,  964,  964,  964,
+      964,  964,  964,  964,  964,  964,  964,  964,  376,  376,
+     2514, 2514,  376,  376, 2514, 2514, 2514, 2514,  376,  376,
+      376,  376,  469,  469, 2514, 2514, 2514,  469, 2514, 2514,
+     2514, 2514,  469,  469,  469,  469,  493,  493, 2514, 2514,
+      493,  493,  493, 2514, 2514, 2514,  493,  493,  493,  493,
+
+      532,  532, 2514, 2514, 2514,  532, 2514, 2514, 2514, 2514,
+      532,  532,  532,  532,  561, 2514,  561, 2514,  561,  581,
+     2514,  581, 2514,  581, 1280, 1280, 1280, 1280, 1280, 1280,
+     1280, 1280, 1280, 1280, 1280, 1280, 1280, 1280, 1280, 1280,
+     1280, 1280, 1284, 1284, 1284, 1284, 1284, 1284, 1284, 1284,
+     1284, 1284, 1284, 1284, 1284, 1284, 1284, 1284, 1284, 1284,
+     1288, 1288, 1288, 1288, 1288, 1288, 1288, 1288, 1288, 1288,
+     1288, 1288, 1288, 1288, 1288, 1288, 1288, 1288,  632,  632,
+     2514,  632,  632,  632,  632,  632,  632,  632,  632,  632,
+      632,  632,  632,  632,  632,  632, 1107, 1107, 2514, 1107,
+
+     1107, 1107, 1107, 1107, 1107, 1107, 1107, 1107, 1107, 1107,
+     1107, 1107, 1107, 1107,  640,  640, 2514, 2514, 2514,  640,
+     2514, 2514, 2514, 2514,  640,  640,  640,  640, 1118, 1118,
+     2514, 1118, 1118, 1118, 1118, 1118, 1118, 1118, 1118, 1118,
+     1118, 1118, 1118, 1118, 1118, 1118,  667,  667, 2514,  667,
+      667,  667,  667,  667,  667,  667,  667,  667,  667,  667,
+      667,  667,  667,  667, 1123, 1123, 2514, 1123, 1123, 1123,
+     1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
+     1123, 1123,  675,  675, 2514, 2514, 2514,  675, 2514, 2514,
+     2514, 2514,  675,  675,  675,  675,  690,  690, 2514, 2514,
+
+     2514,  690, 2514, 2514, 2514, 2514,  690,  690,  690,  690,
+      703,  703, 2514,  703,  703,  703,  703,  703,  703,  703,
+      703,  703,  703,  703,  703,  703,  703,  703, 1133, 1133,
+     2514, 1133, 1133, 1133, 1133, 1133, 1133, 1133, 1133, 1133,
+     1133, 1133, 1133, 1133, 1133, 1133,  711,  711, 2514, 2514,
+      711,  711, 2514, 2514, 2514, 2514,  711,  711,  711,  711,
+     1145, 1145, 2514, 1145, 1145, 1145, 1145, 1145, 1145, 1145,
+     1145, 1145, 1145, 1145, 1145, 1145, 1145, 1145, 1150, 1150,
+     2514, 1150, 1150, 1150, 1150, 1150, 1150, 1150, 1150, 1150,
+     1150, 1150, 1150, 1150, 1150, 1150,  376,  376, 2514, 2514,
+
+      376,  376, 2514, 2514, 2514, 2514,  376,  376,  376,  376,
+      469,  469, 2514, 2514, 2514,  469, 2514, 2514, 2514, 2514,
+      469,  469,  469,  469,  493,  493, 2514, 2514,  493,  493,
+     2514, 2514, 2514, 2514,  493,  493,  493,  493,  532,  532,
+     2514, 2514, 2514,  532, 2514, 2514, 2514, 2514,  532,  532,
+      532,  532,  561, 2514,  561, 2514,  561,  581, 2514,  581,
+     2514,  581, 1280, 1280, 2514, 1280, 1280, 1280, 1280, 1280,
+     1280, 1280, 1280, 1280, 1280, 1280, 1280, 1280, 1280, 1280,
+     1284, 1284, 2514, 1284, 1284, 1284, 1284, 1284, 1284, 1284,
+     1284, 1284, 1284, 1284, 1284, 1284, 1284, 1284, 1288, 1288,
+
+     2514, 1288, 1288, 1288, 1288, 1288, 1288, 1288, 1288, 1288,
+     1288, 1288, 1288, 1288, 1288, 1288,  640,  640, 2514, 2514,
+     2514,  640, 2514, 2514, 2514, 2514,  640,  640,  640,  640,
+      675,  675, 2514, 2514, 2514,  675, 2514, 2514, 2514, 2514,
+      675,  675,  675,  675, 1440, 1440, 1440, 1440, 1440, 1440,
+     1440, 1440, 1440, 1440, 1440, 1440, 1440, 1440, 1440, 1440,
+     1440, 1440, 1589, 1589, 1589, 1589, 1589, 1589, 1589, 1589,
+     1589, 1589, 1589, 1589, 1589, 1589, 1589, 1589, 1589, 1589,
+     1624, 1624, 1624, 1624, 1624, 1624, 1624, 1624, 1624, 1624,
+     1624, 1624, 1624, 1624, 1624, 1624, 1624, 1624, 1714, 1714,
+
+     1714, 1714, 1714, 1714, 1714, 1714, 1714, 1714, 1714, 1714,
+     1714, 1714, 1714, 1714, 1714, 1714, 1736, 1736, 1736, 1736,
+     1736, 1736, 1736, 1736, 1736, 1736, 1736, 1736, 1736, 1736,
+     1736, 1736, 1736, 1736, 1743, 1743, 1743, 1743, 1743, 1743,
+     1743, 1743, 1743, 1743, 1743, 1743, 1743, 1743, 1743, 1743,
+     1743, 1743, 1764, 1764, 1764, 1764, 1764, 1764, 1764, 1764,
+     1764, 1764, 1764, 1764, 1764, 1764, 1764, 1764, 1764, 1764,
+     1797, 1797, 1797, 1797, 1797, 1797, 1797, 1797, 1797, 1797,
+     1797, 1797, 1797, 1797, 1797, 1797, 1797, 1797, 1822, 1822,
+     1822, 1822, 1822, 1822, 1822, 1822, 1822, 1822, 1822, 1822,
+
+     1822, 1822, 1822, 1822, 1822, 1822, 1872, 1872, 1872, 1872,
+     1872, 1872, 1872, 1872, 1872, 1872, 1872, 1872, 1872, 1872,
+     1872, 1872, 1872, 1872,   59, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514
     } ;
 
-static yyconst flex_int16_t yy_chk[15696] =
+static yyconst flex_int16_t yy_chk[15718] =
     {   0,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
@@ -2966,7 +3031,7 @@ static yyconst flex_int16_t yy_chk[15696] =
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    3,    3,    3,    3,    3,    3,    3,
+        1,    1,    3,    3,    3,    3,    3,    3,    3,    3,
 
         3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
         3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
@@ -2976,8 +3041,8 @@ static yyconst flex_int16_t yy_chk[15696] =
         3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
         3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
         3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
-        3,    3,    3,    3,    3,    3,    5,    6,   67,   67,
-       69,   70,   70,   69,   69,    5,    6,    7,    7,    7,
+        3,    3,    3,    3,    5,    6,   71,   71, 2493,   71,
+      232,  232, 2487,    5,    6,    7,    7,    7,    7,    7,
 
         7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
         7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
@@ -2987,7 +3052,7 @@ static yyconst flex_int16_t yy_chk[15696] =
         7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
         7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
         7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
-        7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
+        7,    7,    7,    7,    7,    7,    7,    9,    9,    9,
         9,    9,    9,    9,    9,    9,    9,    9,    9,    9,
 
         9,    9,    9,    9,    9,    9,    9,    9,    9,    9,
@@ -2997,8 +3062,8 @@ static yyconst flex_int16_t yy_chk[15696] =
         9,    9,    9,    9,    9,    9,    9,    9,    9,    9,
         9,    9,    9,    9,    9,    9,    9,    9,    9,    9,
         9,    9,    9,    9,    9,    9,    9,    9,    9,    9,
-        9,    9,    9,    9,    9,    9,    9,    9,    9,    9,
-        9,    9,    9,   11,   11,   11,   11,   11,   11,   11,
+        9,    9,    9,    9,    9,    9,    9,    9,    9,   11,
+       11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
        11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
 
        11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
@@ -3008,44 +3073,43 @@ static yyconst flex_int16_t yy_chk[15696] =
        11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
        11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
        11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
-       11,   11,   11,   11,   11,   11,   13,   13,   13,   27,
-       14,   14,   14,   13,   28,   29,   13,   14,   13,   30,
-       14,   31,   14,   15,   15,   15,   32,   16,   16,   16,
-
-       15,   39,   40,   15,   16,   15,   47,   16,   48,   16,
-      103,  103,  108,   55,  109,  109,  131,  108,   56,  122,
-      122,   55,   27,  134,   39,   40,   56,   28,   29,  125,
-       55, 2311,   30, 2293,  125,   56,   47,   31,   48,  135,
-      130,  136,   32,  137,   55,  130, 2286,  131,  151,   56,
-      144,  144,   55,  151,  134,   39,   40,   56,   13, 2285,
-       13,   55,   14,  166,   14, 2283,   56,   47,  166,   48,
-      135,  183,  136,  191,  137,   15,  183,   15,  191,   16,
-     2282,   16,   19,   19,   19,   19,   19,   19,   19,   19,
+       11,   13,   13,   13,   27,   14,   14,   14,   13,   28,
+       29,   13,   14,   13,   30,   14,   31,   14,   15,   15,
+       15,   32,   16,   16,   16,   15,   39,   40,   15,   16,
+
+       15,   47,   16,   48,   16,  110,  127,   57,  132,  133,
+      110,  127,   58,  132,  136,   57,   27,  137,   39,   40,
+       58,   28,   29,   77,   57,   77,   30, 2472,  138,   58,
+       47,   31,   48,  139,  140,   77,   32,  141,   57,   77,
+      133,  174,  153,   58, 2464,  136,   57,  153,  137,   39,
+       40,   58,   13, 2463,   13,   57,   14,  168,   14,  138,
+       58,   47,  168,   48,  139,  140,   77, 2461,  141,   15,
+       77,   15,  174,   16, 2460,   16,   19,   19,   19,   19,
        19,   19,   19,   19,   19,   19,   19,   19,   19,   19,
-
        19,   19,   19,   19,   19,   19,   19,   19,   19,   19,
+
        19,   19,   19,   19,   19,   19,   19,   19,   19,   19,
        19,   19,   19,   19,   19,   19,   19,   19,   19,   19,
        19,   19,   19,   19,   19,   19,   19,   19,   19,   19,
        19,   19,   19,   19,   19,   19,   19,   19,   19,   19,
        19,   19,   19,   19,   19,   19,   19,   19,   19,   19,
        19,   19,   19,   19,   19,   19,   19,   19,   19,   19,
-       19,   19,   19,   19,   19,   21,   21,   21,   22,   22,
-       22,  138,   85,   21,   85,   85,   22,   23,   23,   23,
-      146,  146,   23,  139,   23,   85,   23,   23,   24,   24,
-
-       24,  158,  158,   24, 1257,   24, 1261,   24,   24,   25,
-       25,   25,  138, 2182,   25, 2279,   25,   25,   25,   25,
-       26,   26,   26,  172,  139,   26,   85,   26,   26,   26,
-       26,   64,   64,   64,   64,   64,   64,   64,   64,   64,
-       64,   64,   77,  173,   77,   77,  160,  160,   75, 2245,
-       75,   75,  174,  175,  172,   77,  205,   21,  206,   21,
-       22,   75,   22,  197,  197,   75,  268,  200,   77,   23,
-     2243,   23,  200, 2233,  173,  210,  210, 2224,  210, 1257,
-       24, 1261,   24,  174,  175,  221,   77,  205, 2182,  206,
-      221,   25,   75,   25,  197,  197,   75,  268,  228,   77,
-
-      230,  230,   26,  228,   26,   37,   37,   37,   37,   37,
+       19,   19,   19,   19,   19,   19,   19,   19,   21,   21,
+       21,   22,   22,   22,  175,  122,   21,  176,  185,   22,
+       23,   23,   23,  185, 2457,   23,  103,   23,  177,   23,
+       23,   24,   24,   24,  193, 2455,   24,  334,   24,  193,
+
+       24,   24,   25,   25,   25,  175, 2442,   25,  176,   25,
+       25,   25,   25,   26,   26,   26, 2439,  265,   26,  177,
+       26,   26,   26,   26,   66,   66,   66,   66,   66,   66,
+       66,   66,   66,   66,   66,   79,   87,   79,   87,  199,
+      199,   85,  207,   85,  122,  122,  208,   79,   87,   21,
+      269,   21,   22,   85,   22,  103,  103,   85,  103,  202,
+       79,   23,  223,   23,  202,  212,  212,  223,  212,  334,
+      199,  199,   24,  207,   24,  230, 2435,  208,   79,   87,
+      230,  269,  476,   25,   85,   25,  265,  476,   85,  281,
+      281,   79,  323,  323,   26,  323,   26,   37,   37,   37,
+
        37,   37,   37,   37,   37,   37,   37,   37,   37,   37,
        37,   37,   37,   37,   37,   37,   37,   37,   37,   37,
        37,   37,   37,   37,   37,   37,   37,   37,   37,   37,
@@ -3054,21 +3118,20 @@ static yyconst flex_int16_t yy_chk[15696] =
        37,   37,   37,   37,   37,   37,   37,   37,   37,   37,
        37,   37,   37,   37,   37,   37,   37,   37,   37,   37,
        37,   37,   37,   37,   37,   37,   37,   37,   37,   37,
-       37,   37,   37,   37,   37,   37,   37,   37,   41,   41,
-
-       41, 2145,   41,   41, 2214,   41,   41,   41,   59,   59,
-       59,   41,   42,   42,   42,  259,   42,   42,  259,   42,
-       42,   42,  101,  101,   76,   42,   76,   76,   78, 2187,
-       78,   78,   79,   76,   79,   79,  278,   76,  207,   41,
-      208,   78,  312,  207,  344,   79,  259,   76,  345,  259,
-       76, 2186,   79,   42,   78,   79,  353,  208,   79, 2183,
-       78,  266,  266, 2151,   76,  280,  280,  278,   76,  207,
-       41,  208,   78,  312,  207,  344,   79, 2145,   76,  345,
-       41,   76,   41,   79,   42,   78,   79,  353,  208,   79,
-       59,   78,  101,  101,   42,  101,   42,   43,   43,   43,
-
-       43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
+       37,   37,   37,   37,   37,   37,   37,   37,   37,   41,
+       41,   41,  260,   41,   41,  260,   41,   41,   41,   61,
+
+       61,   61,   41,   42,   42,   42, 1291,   42,   42,  298,
+       42,   42,   42,   78,  490,   78,   42,  210,  279,  490,
+       80,   78,   80,  260,  313,   78,  260,  343,   83,   41,
+       83,  344,   80,  142,  210,   78,   83,  142,   78, 2423,
+       83, 2420,  352,   42,   83,   80,  142, 2409,  210,  279,
+      142,   80,   78, 2407,  353,  313,   78, 2396,  343, 2393,
+       41, 2392,  344,   80,  142,  210,   78,   83,  142,   78,
+       41,   83,   41,  352,   42,   83,   80,  142,  298,  298,
+       61,  142,   80, 1291,   42,  353,   42,   43,   43,   43,
        43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
+
        43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
        43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
        43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
@@ -3076,9 +3139,10 @@ static yyconst flex_int16_t yy_chk[15696] =
        43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
        43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
        43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
+       43,   43,   43,   43,   43,   43,   43,   43,   43,   45,
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
-
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
+
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
@@ -3086,1604 +3150,1607 @@ static yyconst flex_int16_t yy_chk[15696] =
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
-       45,   45,   45,   49,   49,   49,   49,   49,   49,   49,
+       45,   49,   49,   49,   49,   49,   49,   49,   49,   49,
        49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
-
        49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
+
        49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
        49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
        49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
        49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
        49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
        49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
-       49,   49,   49,   49,   49,   49,   51,   51,   51,  264,
-      264,   51, 2144,   52,   52,   52,  299,  299,   52,   51,
-       60,   60,   60,  308,  308,   51,   52, 2143,  245,  245,
-
-      245,  354,   52, 2128,   51,   53,   53,   53,  310,  310,
-       53,   52,   54,   54,   54,  320,  320,   54,   53,   62,
-      356,   51,  120,  120,   53,   54,  322, 2107,   52,  322,
-      322,   54,  354,   53,   80,   51,   80,   80, 2103,   53,
-       54,   94,   52,   94,   94, 2099,   54,   80, 2090,  264,
-       94,  356,   51,  357,   94,  323,  323,   65,   51,   52,
-       80,  246,  246,  246,   53,   52,   83, 2088,   83,   83,
-       53,   54,   60, 2054,  270,  270,  270,   54,   80,   83,
-      245,   94,  358,   83,  357,   94, 2049,   53,  271,  271,
-      271,   80,  120,  120,   54, 2047,   62,   62,   62,   62,
-
-       62,   62,   62,   62,   62,   62,   62,   63,   63, 1265,
-       83,   63,   63,  358,   83,   63,   63,   63,   63,   63,
-       63,   63,   63,   63,  337,  337,   63,   63,   63,   63,
-       63,   65,   65,   65,   65,   65,   65,   65,   65,   65,
-       65,   65,   96,  246,   96,   96,  282,  282,  282,  366,
-      366,   96,  283,  283,  283,   96,  270,   63,   63,   63,
-      475,   63,  335,  335,   81,  475,   81,   81,  368,  368,
-      271,  489,   89,   81,   89,   89,  489,   81,  376,  376,
-      495,   81,   96,  381,  381,   89,   96, 1265,   63,   63,
-       63,   63,   63,   63,   63,   63,   63,   63,   63,   63,
-
-       72,   89,   72,   72,   81,  383,  383,   82,   81,   82,
-       82,  495,   81,   72,  389,  389,   89,  391,  391,   82,
-       82, 2041,   82,  496,  257,  392,  392,  257,  282,   82,
-      257, 2031,   89,  508,  283,  335,  460,  460,  508,   84,
-     2028,   84,   84, 2022,   72,  462,  462, 2019,   84, 2017,
-       82,   82,   84,   82,  496,  257,   84, 1990,  257,  497,
-       82,  257,   84,  297,  297,  472,  472,   72,   72,   72,
-       72,   72,   72,   72,   72,   72,   72,   72,   74,   84,
-       74,   74,   87,   84,   87,   87,   86,   84,   86,   86,
-      497,   74,   87,   84,  498,   87,   87, 1988,   74,   86,
-
-       74,  314,  314,  314,   87,   74,   74,   74,   87,   86,
-     1982,  315,  315,  315, 1980,   88,  499,   88,   88,  474,
-      474, 1977,   74,   87,   88,  498,   87,   87,   88,   74,
-       86,   74,   88,  297,  297,   87,   74,   74,   74,   87,
-       86,   88,  510,   90,   88,   90,   90,  499,   91,  546,
-       91,   91,  477,  477,  546,   88,   90,  504,  504,   88,
-     1972,   91, 1968,   88,   91,   92,   90,   92,   92,  511,
-       91,  512,   88,  510,   92,   88,   91,  328,   92,  328,
-      328,   92, 1953,  314,  506,  506,   93,   90,   93,   93,
-      328,   92,   91,  315,  513,   91,  514,   90,  515,   93,
-
-      511,   91,  512,  528,  528,   92,  328,   91,   93,   92,
-       93,  516,   92,   93, 1941,   95,  517,   95,   95,  530,
-      530,  328,   92,  518,   95,  513,  519,  514,   95,  515,
-       93,   95,   95,  561,   98,   98,   97,  328,  561,   93,
-     1929,   93,  516, 1904,   93,   98,   98,  517,  238,  238,
-      238,   98,  238,  238,  518,   95, 1902,  519,  520,   95,
-     1893,  238,   95,   95,   97,   97,   97,   97,   97,   97,
-       97,   97,   97,   97,   97,   99,   99,  563,   98,   98,
-       98, 1888,   98,  100,  100, 1878,   99,   99, 1874,  520,
-      102,  102,   99,  564,  100,  100, 1870,  339,  339,  339,
-
-      100,  102,  102,  110,  110,  535,  535,  102,  563,   98,
-      537,  537,  329,  573,  329,  329,  543,  543,  573,   99,
-       99,   99, 1851,   99,  564,  329,  565,  100,  100,  100,
-      238,  100,  329,  566,  102,  102,  102, 1836,  102,  106,
-      106,  106,  106,  106,  106,  106,  106,  106,  106,  106,
-       99,  111,   99,  340,  340,  340,  329,  565,  100,  112,
-      545,  545, 1824,  329,  566,  102,  555,  555,  110,  110,
-      110,  110,  110,  110,  110,  110,  110,  110,  110,  339,
-      557,  557,  111, 1814,  113,  114,  567,  348,  348,  348,
-      112, 1805,  111,  111,  111,  111,  111,  111,  111,  111,
-
-      111,  111,  111,  568,  112,  112,  112,  112,  112,  112,
-      112,  112,  112,  112,  112,  113,  114,  567, 1793,  115,
-      116, 1787,  113,  113,  113,  113,  113,  113,  113,  113,
-      113,  113,  113,  577,  568,  340,  637,  637,  577,  114,
-      114,  114,  114,  114,  114,  114,  114,  114,  114,  114,
-      115,  116,  349,  349,  349, 1780,  569, 1745,  115,  115,
-      115,  115,  115,  115,  115,  115,  115,  115,  115,  348,
-      642,  642,  644,  644,  116,  116,  116,  116,  116,  116,
-      116,  116,  116,  116,  116,  117,  117,  569,  330, 1693,
-      330,  330,  118,  118,  570, 1690,  117,  117, 1653,  119,
-
-      119,  330,  117,  118,  118, 1638,  121,  121, 1628,  118,
-      119,  119,  359,  359,  359, 1613,  119,  121,  121,  583,
-      148, 1589,  140,  121,  583,  570,  140,  581, 1587,  117,
-      117,  117,  330,  117,  349,  140,  118,  118,  118,  140,
-      118,  582,  176,  119,  119,  119,  176,  119,  585,  586,
-      121,  121,  121,  140,  121,  176,  587,  140,  581,  176,
-      117,  588,  393,  393,  393, 1585,  140,  118, 1578,  118,
-      140,  597,  582,  176,  119, 1566,  597,  176, 1559,  585,
-      586,  121,  127,  127,  127,  589,  176,  587,  590, 1544,
-      176, 1542,  588,  127,  359,  127,  127,  148,  148,  148,
-
-      148,  148,  148,  148,  148,  148,  148,  148,  127,  127,
-     1538,  127,  394,  394, 1515,  150,  589,  656, 1498,  590,
-      127, 1469,  127,  394,  127,  149,  149,  149,  149,  149,
-      149,  149,  149,  149,  149,  149,  232,  232,  232,  127,
-      127,  232,  127,  232,  393,  235,  235,  235,  656,  232,
-      235,  127,  235,  127,  394,  127,  601, 1573,  235,  673,
-      673,  601, 1573,  127,  127,  127,  127,  127,  127,  127,
-      127,  127,  127,  127,  128,  128,  128, 1456,  661,  678,
-      678,  680,  680,  693,  693,  128, 1450,  128,  128,  150,
+       49,   49,   49,   51,   51,   51, 1496, 1496,   51,  509,
+       52,   52,   52, 2390,  509,   52,   51,   62,   62,   62,
+     2379,   51,  355,   52,  247,  247,  247, 2369,   52,  356,
+       51,   55,   55,   55, 1612, 1612,   55,   52,   56,   56,
+
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-      747,  747,  747,  747,  747,  747,  747,  747,  747,  747,
-      747, 1134, 1134, 1134,    0,  703,  703,  703,  703,  703,
-      703,  703,  703,  703,  703,  703,  703,  704,  704,  746,
-        0,  704,  704,  704,  704,  704,  704,  704,  704,  704,
-
-      704,  704,  704,  704,  704,  704,  704,  704,  704,  704,
-      707,  707, 1213,    0,  707,  707,  707,  707,  707,  707,
-      707,  707,  707,  707,  707,  707,  707,  707,  707,  707,
-      707,  707,  707,  711,  711,    0,    0, 1416, 1416, 1416,
-      712,  712,    0, 1213,  711,  711,    0,  713,  713, 1158,
-      711,  712,  712, 1134,    0,    0, 1158,  712,  713,  713,
-      750,    0,    0, 1217,  713, 1221,  746,  746,  746,  746,
-      746,  746,  746,  746,  746,  746,  746,  711,  711,  711,
-     1158,  711,    0, 1230,  712,  712,  712, 1158,  712,  757,
-      757,  713,  713,  713, 1217,  713, 1221,  707,  707,    0,
-
-      707,  715,  715,    0, 1230,    0,    0,    0,  711,    0,
-        0,    0,  715,  715, 1230,  712,    0,  712,  715, 1416,
-        0, 1239,  713,  749,  749,  749,  749,  749,  749,  749,
-      749,  749,  749,  749,  750,  750,  750,  750,  750,  750,
-      750,  750,  750,  750,  750,  715,  715,  715,    0,  715,
-      759,  761, 1239,    0,  757,  757,  757,  757,  757,  757,
-      757,  757,  757,  757,  757,  758,  758,  758,  758,  758,
-      758,  758,  758,  758,  758,  758,  715,  721,    0,  721,
-      721,  759,  761,    0,  760,  996,  805, 1240,  805,  996,
-      721,  805,  761,  761,  761,  761,  761,  761,  761,  761,
-
-      761,  761,  761,    0,  759,  759,  759,  759,  759,  759,
-      759,  759,  759,  759,  759,  760,  996,  805, 1240,  805,
-      996,  721,  805,    0,    0,    0, 1242, 1244,    0,    0,
-      762,  760,  760,  760,  760,  760,  760,  760,  760,  760,
-      760,  760,  763,    0,  721,  721,  721,  721,  721,  721,
-      721,  721,  721,  721,  721,  748,  748, 1242, 1244,  748,
-      748,  762,    0,  748,  748,  748,  748,  748,  748,  748,
-      748,  748, 1245,  763,  748,  748,  748,  748,  748,  766,
-      762,  762,  762,  762,  762,  762,  762,  762,  762,  762,
-      762,  764,  763,  763,  763,  763,  763,  763,  763,  763,
-
-      763,  763,  763, 1245,    0,  748,  748,  748,    0,  748,
-      766,    0,    0,    0,    0,    0,    0,  765,    0,    0,
-        0,    0,  764,    0,    0,  766,  766,  766,  766,  766,
-      766,  766,  766,  766,  766,  766,  748,  748,  748,  748,
-      748,  748,  748,  748,  748,  748,  748,  748,  765,  764,
-      764,  764,  764,  764,  764,  764,  764,  764,  764,  764,
-        0,    0,    0,    0,  765,  765,  765,  765,  765,  765,
-      765,  765,  765,  765,  765,  767, 1247,  795,    0,    0,
-      767,    0,  795,    0,    0, 1249,    0,  795,  836,  836,
-      836,  836,  836,  836,  836,  836,  836,  836,  836,    0,
-
-      789,  790,    0,  794,    0, 1250,  767, 1247,  795,  789,
-      790,  767,  794,  795,  789,  790, 1249,  794,  795,    0,
-      767,  767,  767,  767,  767,  767,  767,  767,  767,  767,
-      767,  789,  790,  807,  794,  797, 1250,  807,  807,    0,
-      789,  790,  797,  794,  802,  789,  790,  797,  794,  804,
-      806,    0, 1251,  802,  808,  810,  804,  806,  802,  810,
-      810,  804,  806,    0,  807,  808,  797,  809,  807,  807,
-      808,    0,  812,  797,  812,  802,    0,  809,  797,  812,
-      804,  806,  809, 1251,  802,  808,  810,  804,  806,  802,
-      810,  810,  804,  806,  813,  813,  808,    0,  809,  813,
-
-      814,  808,  814,  812,  816,  812,  815,  814,  809,  816,
-      812,  815,  815,  809,  817,  818,  818,  818,  824,  820,
-      816,  820,    0,  817,  820,  813,  813,  819,  817,  824,
-      813,  814,  819,  814,  824,  816,  819,  815,  814,    0,
-      816, 1266,  815,  815, 1267,  817,  822,    0,  822,  824,
-      820,  818,  820,  822,  817,  820,  818,  999,  819,  817,
-      824,  999,  823,  819,  821,  824,    0,  819,  821,  821,
-      821,  823, 1266,  825,    0, 1267,  823,  822,  825,  822,
-      826,  826,  818,  826,  822,  826,    0,  818,  999,  829,
-      827,  830,  999,  823,  829,  821,  830,  818,    0,  821,
-
-      821,  821,  823,  827,  825,  832,    0,  823,  827,  825,
-      832,  826,  826,  828,  826,  832,  826,  828,  828,  831,
-      829,  827,  830,  833,  831,  829,  831,  830,  833,  835,
-     1231, 1233, 1231,  834,  827,  835,  832,  834,  834,  827,
-      835,  832,    0,    0,  828,  837,  832,    0,  828,  828,
-      831,    0, 1233,  839,  833,  831,    0,  831,    0,  833,
-      835, 1231, 1233, 1231,  834,    0,  835,  840,  834,  834,
-        0,  835,    0,  837,  837,  837,  837,  837,  837,  837,
-      837,  837,  837,  837,  839,    0,  839,  839,  839,  839,
-      839,  839,  839,  839,  839,  839,  839,    0,  840,    0,
-
-        0,  841,  842,  858,  858,  858,  858,  858,  858,  858,
-      858,  858,  858,  858, 1263, 1263, 1263,    0, 1263,    0,
-        0,  840,  840,  840,  840,  840,  840,  840,  840,  840,
-      840,  840,  841,  842,    0,    0,    0,  843,    0,    0,
-        0,    0,  841,  841,  841,  841,  841,  841,  841,  841,
-      841,  841,  841,  859,    0,    0,    0,  842,  842,  842,
-      842,  842,  842,  842,  842,  842,  842,  842,  843,  844,
-      860,  860,  860,  860,  860,  860,  860,  860,  860,  860,
-      860,  843,  843,  843,  843,  843,  843,  843,  843,  843,
-      843,  843,  861,    0,    0,    0, 1263,    0, 1160,    0,
-
-      844,  864,  864,  864,  864,  864,  864,  864,  864,  864,
-      864,  864, 1002, 1268,  862, 1160, 1002,  844,  844,  844,
-      844,  844,  844,  844,  844,  844,  844,  844,  846, 1160,
-      859,  859,  859,  859,  859,  859,  859,  859,  859,  859,
-      859,    0,    0, 1002, 1268,  862, 1160, 1002, 1279, 1283,
-     1284,    0,  846,  862,  862,  862,  862,  862,  862,  862,
-      862,  862,  862,  862,    0,    0,  861,  861,  861,  861,
-      861,  861,  861,  861,  861,  861,  861,  863, 1003, 1279,
-     1283, 1284, 1003,  846,  895,  895,  895,  895,  895,  895,
-      895,  895,  895,  895,  895,  846,  846,  846,  846,  846,
-
-      846,  846,  846,  846,  846,  846,  847,  865,  863, 1003,
-        0,    0,    0, 1003,    0,  847,  902,    0,    0,  907,
-        0,    0,    0,    0,  863,  863,  863,  863,  863,  863,
-      863,  863,  863,  863,  863,  865,  865,  865,  865,  865,
-      865,  865,  865,  865,  865,  865,  847,  902,  907,  907,
-      907,  907,  907,  907,  907,  907,  907,  907,  907, 1293,
-      902,  902,  902,  902,  902,  902,  902,  902,  902,  902,
-      902,  903,    0,  847,  847,  847,  847,  847,  847,  847,
-      847,  847,  847,  847,  896,  896,    0,    0,  896,  896,
-     1293,    0,  896,  896,  896,  896,  896,  896,  896,  896,
-
-      896,  904,  903,  896,  896,  896,  896,  896,  973,  983,
-      983, 1165,  973, 1295,  983,  973,  903,  903,  903,  903,
-      903,  903,  903,  903,  903,  903,  903,  905, 1298, 1304,
-     1165, 1310,  904,    0,  896,  896,  896,    0,  896,  973,
-      983,  983, 1165,  973, 1295,  983,  973,  904,  904,  904,
-      904,  904,  904,  904,  904,  904,  904,  904,  905, 1298,
-     1304, 1165, 1310,    0,  906,  896,  896,  896,  896,  896,
-      896,  896,  896,  896,  896,  896,  896,    0,    0,    0,
-        0,    0,    0,    0,  905,  905,  905,  905,  905,  905,
-      905,  905,  905,  905,  905,  906,    0, 1005,    0,    0,
-
-     1312, 1005,    0,  906,  906,  906,  906,  906,  906,  906,
-      906,  906,  906,  906,  913,  913,  913,  913,  913,  913,
-      913,  913,  913,  913,  913,  914,  914,  919, 1005,  914,
-      914, 1312, 1005,  914,  914,  914,  914,  914,  914,  914,
-      914,  914,  917,    0,  914,  914,  914,  914,  914,  991,
-     1000, 1000, 1172,  991, 1176, 1000,  919,  919,  919,  919,
-      919,  919,  919,  919,  919,  919,  919,    0,  991, 1172,
-     1008, 1176,  921,  917, 1008,  914,  914,  914,    0,  914,
-      991, 1000, 1000, 1172,  991, 1176, 1000,  917,  917,  917,
-      917,  917,  917,  917,  917,  917,  917,  917,  918,  991,
-
-     1172, 1008, 1176,  921, 1314, 1008,  914,  914,  914,  914,
-      914,  914,  914,  914,  914,  914,  914,  914,  921,  921,
-      921,  921,  921,  921,  921,  921,  921,  921,  921,  918,
-      932,  932,    0,    0,  963, 1314,    0,  918,  918,  918,
-      918,  918,  918,  918,  918,  918,  918,  918,  924,  924,
-      924,  924,  924,  924,  924,  924,  924,  924,  924,  925,
-      925,    0,    0,  925,  925,  963,    0,  925,  925,  925,
-      925,  925,  925,  925,  925,  925,  935, 1159,  925,  925,
-      925,  925,  925, 1159,  963,  963,  963,  963,  963,  963,
-      963,  963,  963,  963,  963,  932,  932,  932,  932,  932,
-
-      932,  932,  932,  932,  932,  932,  936,  935, 1159,  925,
-      925,  925,    0,  925, 1159,    0,    0,    0,    0,    0,
-      935,  935,  935,  935,  935,  935,  935,  935,  935,  935,
-      935, 1083, 1083, 1083,    0,    0,    0,  936, 1083,    0,
-      925,  925,  925,  925,  925,  925,  925,  925,  925,  925,
-      925,  925,  937,  995, 1010, 1009, 1149,  995, 1010, 1009,
-     1010,    0,    0,  936,  936,  936,  936,  936,  936,  936,
-      936,  936,  936,  936,  961, 1009, 1011, 1012,  995, 1149,
-     1011, 1012,    0,  937,  995, 1010, 1009, 1149,  995, 1010,
-     1009, 1010,  937,  937,  937,  937,  937,  937,  937,  937,
-
-      937,  937,  937,  962, 1315,  961, 1009, 1011, 1012,    0,
-     1149, 1011, 1012, 1083,    0,  961,  961,  961,  961,  961,
-      961,  961,  961,  961,  961,  961,  964, 1018, 1017, 1018,
-     1236,  965, 1017, 1018,  962, 1315,    0,  962,  962,  962,
-      962,  962,  962,  962,  962,  962,  962,  962,    0,    0,
-        0, 1236,    0,    0,    0,    0,  966,  964, 1018, 1017,
-     1018, 1236,  965, 1017, 1018,  964,  964,  964,  964,  964,
-      964,  964,  964,  964,  964,  964,  965,  965,  965,  965,
-      965,  965,  965,  965,  965,  965,  965,  966, 1255, 1255,
-     1255,    0,    0,    0,    0, 1255,    0,  966,  966,  966,
-
-      966,  966,  966,  966,  966,  966,  966,  966,  967,  967,
-      967,  967,  967,  967,  967,  967,  967,  967,  967,  968,
-      971,  972,  974,  968,  971,  972,  974,  977,  979,  981,
-      974,  977,  979,  981, 1026,  971,  972,  981, 1026,    0,
-      977,  979, 1259, 1259, 1259,    0,    0,    0,    0, 1259,
-      968,  971,  972,  974,  968,  971,  972,  974,  977,  979,
-      981,  974,  977,  979,  981, 1026,  971,  972,  981, 1026,
-     1255,  977,  979,  968,  968,  968,  968,  968,  968,  968,
-      968,  968,  968,  968,  976,  980,  986,  985,  976,  980,
-      986,  985,  990,    0,  987, 1323,  990,  986,  987,  976,
-
-      992,  980,  985,  987,  992,  990,    0,    0,    0, 1323,
-      994,  994,  994,  992,    0,  976,  980,  986,  985,  976,
-      980,  986,  985,  990, 1259,  987, 1323,  990,  986,  987,
-      976,  992,  980,  985,  987,  992,  990,  994,  997,  998,
-     1323,  994,  997,  998,  992, 1001,    0, 1004,    0, 1001,
-      998, 1004,    0,  997,    0, 1001, 1006, 1006, 1006, 1007,
-     1004,    0,    0, 1007,    0, 1324,    0, 1007,  994,  997,
-      998, 1013,  994,  997,  998, 1013, 1001, 1153, 1004, 1013,
-     1001,  998, 1004, 1006,  997, 1014, 1001, 1006, 1153, 1014,
-     1007, 1004,  994, 1014, 1007, 1015, 1324, 1016, 1007, 1015,
-
-     1016, 1015, 1013, 1019, 1016, 1019, 1013,    0, 1153, 1019,
-     1013,    0,    0,    0, 1006, 1187, 1014, 1028, 1006, 1153,
-     1014, 1028, 1187, 1023, 1014,    0, 1015, 1023, 1016,    0,
-     1015, 1016, 1015,    0, 1019, 1016, 1019, 1023, 1006,    0,
-     1019, 1020, 1020, 1020, 1021, 1021, 1187,    0, 1028, 1022,
-     1022, 1022, 1028, 1187, 1023, 1021, 1021,    0, 1023,    0,
-     1024, 1021, 1166, 1020, 1024, 1025, 1020, 1020, 1023, 1025,
-     1029, 1326, 1166, 1330, 1029, 1024, 1022, 1020, 1020, 1020,
-     1022, 1025,    0, 1020, 1029,    0,    0, 1332, 1021, 1021,
-     1021, 1024, 1021, 1166,    0, 1024, 1025, 1020, 1020,    0,
-
-     1025, 1029, 1326, 1166, 1330, 1029, 1024, 1022, 1020, 1020,
-     1020, 1022, 1025, 1031, 1020, 1029, 1027, 1031, 1332, 1021,
-     1027, 1021, 1031, 1020, 1027, 1032, 1030,    0, 1030, 1032,
-     1033, 1022, 1030, 1036, 1033, 1034, 1035, 1036, 1035, 1034,
-     1035, 1032, 1037, 1034, 1031, 1033, 1037, 1027, 1031,    0,
-     1037, 1027, 1338, 1031, 1038, 1027, 1032, 1030, 1038, 1030,
-     1032, 1033, 1043, 1030, 1036, 1033, 1034, 1035, 1036, 1035,
-     1034, 1035, 1032, 1037, 1034, 1039, 1033, 1037, 1040, 1039,
-     1041, 1037, 1040, 1338, 1041, 1038,    0,    0,    0, 1038,
-        0,    0,    0, 1043,    0,    0, 1044,    0, 1339, 1340,
-
-        0,    0,    0, 1709, 1709, 1709, 1039,    0,    0, 1040,
-     1039, 1041, 1045, 1040, 1341, 1041, 1043, 1043, 1043, 1043,
-     1043, 1043, 1043, 1043, 1043, 1043, 1043, 1044, 1046, 1339,
-     1340, 1044, 1044, 1044, 1044, 1044, 1044, 1044, 1044, 1044,
-     1044, 1044, 1047, 1045,    0, 1341, 1045, 1045, 1045, 1045,
-     1045, 1045, 1045, 1045, 1045, 1045, 1045, 1046, 1046, 1046,
-     1046, 1046, 1046, 1046, 1046, 1046, 1046, 1046, 1049, 1062,
-        0,    0, 1049, 1047, 1048, 1048, 1048, 1048, 1048, 1048,
-     1048, 1048, 1048, 1048, 1048, 1709,    0, 1047, 1047, 1047,
-     1047, 1047, 1047, 1047, 1047, 1047, 1047, 1047, 1062, 1062,
-
-     1062, 1062, 1062, 1062, 1062, 1062, 1062, 1062, 1062,    0,
-        0,    0,    0,    0, 1098, 1098, 1098, 1154, 1169, 1098,
-     1063, 1177, 1174, 1183, 1169, 1154, 1207, 1098, 1178, 1094,
-     1174, 1183, 1177, 1207, 1178, 1049, 1049, 1049, 1049, 1049,
-     1049, 1049, 1049, 1049, 1049, 1049, 1050,    0, 1154, 1169,
-     1050, 1063, 1177, 1174, 1183, 1169, 1154, 1207,    0, 1178,
-     1094, 1174, 1183, 1177, 1207, 1178, 1098, 1232, 1343, 1095,
-     1346, 1347, 1232, 1050, 1063, 1063, 1063, 1063, 1063, 1063,
-     1063, 1063, 1063, 1063, 1063, 1094, 1094, 1094, 1094, 1094,
-     1094, 1094, 1094, 1094, 1094, 1094, 1098,    0, 1232, 1343,
-
-     1095, 1346, 1347, 1232, 1050,    0,    0, 1345, 1349,    0,
-     1345,    0,    0, 1050, 1050, 1050, 1050, 1050, 1050, 1050,
-     1050, 1050, 1050, 1050, 1095, 1095, 1095, 1095, 1095, 1095,
-     1095, 1095, 1095, 1095, 1095, 1096, 1096, 1096, 1345, 1349,
-     1096, 1345, 1155, 1161, 1156, 1097, 1097, 1097, 1096, 1167,
-     1097, 1099, 1099, 1099, 1110,    0, 1099,    0, 1097,    0,
-        0,    0,    0, 1155, 1099, 1156,    0, 1161, 1097, 1350,
-     1167, 1180, 1194, 1155, 1161, 1156, 1099, 1180, 1194, 1109,
-     1167,    0,    0, 1110, 1110, 1110, 1110, 1110, 1110, 1110,
-     1110, 1110, 1110, 1110, 1155,    0, 1156, 1111, 1161, 1097,
-
-     1350, 1167, 1180, 1194, 1718, 1718, 1718, 1099, 1180, 1194,
-     1109, 1181, 1181, 1181,    0, 1351, 1096, 1096, 1096, 1096,
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-
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-     1125, 1125, 1126, 1192, 1218, 1193, 1220, 1175, 1175, 1175,
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+      669,  669,  669,  669,  669,  669,  669,  669,  669,  669,
+
+      669,  669,  669,  669,  669,  669,  669,  669,  672,  672,
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+
+        0,  827,  982,  827,  677,    0,  677,    0,    0,  684,
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+
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+
+      711,  711,  711,  711,  711,  711,  711,  711,  728,  728,
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+
+      708,  708,  708,  708,  708,  708,  708,  708,  708,  708,
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+      713,  762,  713,    0,    0, 1002,  714,  750,  750,  750,
+
+      750,  750,  750,  750,  750,  750,  750,  750,    0,  716,
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+      998,  993,  998,  724,    0,  762,  762,  762,  762,  762,
+      762,  762,  762,  762,  762,  762, 1100, 1100, 1100, 1108,
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+
+      749,  749,  749,  749,  988,  749,  749,  749,  749,  749,
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+
+      843,  843,  843,  843,  843,  846,  846,  846,  846,  846,
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+
+        0,    0,    0, 1008, 1011, 1014, 1011, 1039, 1014,  851,
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+
+      868,  868,  868,  868,  869,  869,  869,  869,  869,  869,
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+
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+
+      916,  916,  916,  916,  916,  916,  916,  916,  916,  916,
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+
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+
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+
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+
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+
+      946,  946,  946,  946,  946,  973,    0,  973, 1059, 1052,
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+
+     1061, 1061, 1061, 1061, 1061,    0, 1110,  974,    0, 1117,
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+     1064, 1064, 1064, 1064, 1074, 1075, 1065, 1110,  974, 1065,
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+      974,  974,  974,  974,  974,  974,  974,  974,  974, 1034,
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+     1034,    0, 1217, 1034, 1034, 1218, 1115, 1219, 1220, 1134,
+     1134, 1134, 1216, 1144, 1034, 1034, 1034, 1063,    0, 1149,
+
+     1034, 1144, 1065, 1065, 1065, 1065, 1065, 1065, 1065, 1065,
+     1065, 1065, 1065, 1217, 1034, 1034, 1218,    0, 1219, 1220,
+        0,    0,    0, 1216, 1115, 1034, 1034, 1034, 1063, 1079,
+        0, 1034, 1146, 1146, 1146, 1151, 1151, 1151, 1080,    0,
+     1034, 1221, 1063, 1063, 1063, 1063, 1063, 1063, 1063, 1063,
+     1063, 1063, 1063, 1066, 1115,    0, 1066,    0, 1079, 1079,
+     1079, 1079, 1079, 1079, 1079, 1079, 1079, 1079, 1079, 1080,
+     1134,    0, 1221, 1222,    0, 1112,    0, 1263, 1264, 1066,
+     1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129,
+     1129,    0, 1080, 1080, 1080, 1080, 1080, 1080, 1080, 1080,
+
+     1080, 1080, 1080,    0, 1222, 1136, 1112, 1136, 1263, 1264,
+     1066,    0,    0, 1146, 1266,    0, 1151, 1136, 1268, 1066,
+     1066, 1066, 1066, 1066, 1066, 1066, 1066, 1066, 1066, 1066,
+     1112, 1112, 1112, 1112, 1112, 1112, 1112, 1112, 1112, 1112,
+     1112, 1113, 1113, 1113,    0, 1266, 1113,    0, 1136, 1268,
+        0, 1114, 1114, 1114, 1113, 1269, 1114, 1116, 1116, 1116,
+     1127,    0, 1116, 1159, 1114, 1159,    0,    0,    0,    0,
+     1116,    0, 1254, 1114, 1254, 1159, 1164, 1164, 1164, 1253,
+     1256, 1116, 1270, 1255, 1126,    0, 1269,    0, 1255, 1127,
      1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
-     1127, 1141, 1141, 1141, 1170, 1175, 1188, 1189,    0, 1191,
-     1190, 1209,    0, 1170, 1813, 1813, 1813,    0, 1211,    0,
-     1212, 1357, 1358, 1292, 1219, 1214,    0, 1188, 1292, 1215,
-     1189, 1190, 1357, 1209, 1191, 1170, 1175, 1188, 1189, 1175,
-
-     1191, 1190, 1209, 1211, 1170, 1212, 1214, 1216, 1219, 1211,
-     1215, 1212, 1357, 1358, 1292, 1219, 1214, 1170, 1188, 1292,
-     1215, 1189, 1190, 1357, 1209, 1191, 1222, 1308, 1359, 1216,
-     1362, 1289, 1289, 1289, 1211, 1308, 1212, 1214, 1216, 1219,
-        0, 1215, 1141, 1141, 1141, 1141, 1141, 1141, 1141, 1141,
-     1141, 1141, 1141, 1142, 1142, 1142, 1813, 1222, 1308, 1359,
-     1216, 1362, 1225, 1335, 1365, 1374, 1308, 1376, 1335, 1289,
-        0, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222,
-     1222, 1222, 1223, 1223, 1223, 1223, 1223, 1223, 1223, 1223,
-     1223, 1223, 1223, 1225, 1335, 1365, 1374,    0, 1376, 1335,
-
-     1289, 1142, 1238, 1238, 1238, 1238, 1238, 1238, 1238, 1238,
-     1238, 1238, 1238, 1289,    0,    0,    0,    0, 1225, 1225,
-     1225, 1225, 1225, 1225, 1225, 1225, 1225, 1225, 1225,    0,
-        0,    0, 1142, 1307, 1142, 1142, 1142, 1142, 1142, 1142,
-     1142, 1142, 1142, 1142, 1142, 1171, 1171, 1171, 1224,    0,
-     1171, 1171,    0,    0, 1900, 1900, 1900, 1226, 1307,    0,
-     1294, 1171, 1171,    0, 1307,    0, 1294, 1171, 1296, 1291,
-     1297, 1300, 1305,    0, 1296, 1379, 1297, 1224, 1224, 1224,
-     1224, 1224, 1224, 1224, 1224, 1224, 1224, 1224, 1226, 1307,
-     1291, 1294, 1300, 1305, 1171, 1171, 1171, 1294, 1171, 1296,
-
-     1291, 1297, 1300, 1305, 1237, 1296, 1379, 1297, 1380, 1226,
-     1226, 1226, 1226, 1226, 1226, 1226, 1226, 1226, 1226, 1226,
-     1269, 1291,    0, 1300, 1305, 1171,    0, 1171, 1182, 1182,
-     1182,    0,    0, 1182, 1182, 1237, 1900,    0,    0, 1380,
-        0,    0,    0,    0, 1182, 1182,    0,    0,    0, 1382,
-     1182, 1269, 1237, 1237, 1237, 1237, 1237, 1237, 1237, 1237,
-     1237, 1237, 1237, 1270, 1269, 1269, 1269, 1269, 1269, 1269,
-     1269, 1269, 1269, 1269, 1269,    0, 1306, 1182, 1182, 1182,
-     1382, 1182,    0,    0,    0, 1377,    0, 1383, 1306,    0,
-     1377, 1309, 1270, 1270, 1270, 1270, 1270, 1270, 1270, 1270,
-
-     1270, 1270, 1270, 1309, 1271, 1271, 1271, 1306, 1182, 1271,
-     1182, 1203, 1203, 1203, 1274, 1274, 1377, 1271, 1383, 1306,
-     1299, 1377, 1309, 1301, 1303, 1274, 1274, 1744, 1744, 1744,
-     1271, 1274, 1366, 1384, 1309, 1317, 1203, 1203, 1203, 1203,
-     1203, 1744, 1203, 1299, 1203, 1301, 1366, 1317, 1303, 1203,
-        0, 1299, 1203, 1203, 1301, 1303, 1203, 1387, 1274, 1274,
-     1274, 1271, 1274, 1366, 1384,    0, 1317, 1203, 1203, 1203,
-     1203, 1203, 1275, 1203, 1299, 1203, 1301, 1366, 1317, 1303,
-     1203, 1276, 1389, 1203, 1203,    0, 1271, 1203, 1387, 1274,
-        0, 1274,    0, 1203, 1204, 1204, 1204,    0,    0, 1204,
-
-     1204,    0,    0, 1275,    0,    0,    0,    0,    0, 1744,
-     1204, 1204, 1276, 1389,    0, 1277, 1204, 1391,    0, 1275,
-     1275, 1275, 1275, 1275, 1275, 1275, 1275, 1275, 1275, 1275,
-        0, 1276, 1276, 1276, 1276, 1276, 1276, 1276, 1276, 1276,
-     1276, 1276, 1281, 1204, 1204, 1204, 1277, 1204, 1391, 1280,
-     1854, 1854, 1854,    0,    0,    0, 1302, 1302, 1302, 1277,
-     1277, 1277, 1277, 1277, 1277, 1277, 1277, 1277, 1277, 1277,
-     1854, 1302, 1282, 1281, 1204, 1392, 1204, 1228, 1280, 1280,
-     1280, 1280, 1280, 1280, 1280, 1280, 1280, 1280, 1280,    0,
-        0,    0, 1281, 1281, 1281, 1281, 1281, 1281, 1281, 1281,
-
-     1281, 1281, 1281, 1282, 1302, 1228, 1392,    0, 1393, 1394,
-     1395,    0, 1285, 1901, 1901, 1901, 1282, 1282, 1282, 1282,
-     1282, 1282, 1282, 1282, 1282, 1282, 1282, 1313, 1313, 1313,
-        0,    0, 1854,    0,    0, 1302, 1228, 1286, 1302, 1393,
-     1394, 1395, 1313, 1285, 1228, 1228, 1228, 1228, 1228, 1228,
-     1228, 1228, 1228, 1228, 1228, 1229, 1285, 1285, 1285, 1285,
-     1285, 1285, 1285, 1285, 1285, 1285, 1285, 1287, 1286, 1311,
-     1322, 1396, 1229, 1361, 1397, 1313, 1322, 1311,    0, 1361,
-        0,    0,    0,    0, 1286, 1286, 1286, 1286, 1286, 1286,
-     1286, 1286, 1286, 1286, 1286, 1901,    0,    0, 1287,    0,
-
-     1311, 1322, 1396, 1229, 1361, 1397, 1313, 1322, 1311, 1313,
-     1361, 1287, 1287, 1287, 1287, 1287, 1287, 1287, 1287, 1287,
-     1287, 1287, 1229, 1229, 1229, 1229, 1229, 1229, 1229, 1229,
-     1229, 1229, 1229, 1272, 1272, 1272, 1272, 1272, 1272, 1272,
-     1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272,
-     1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272,
-     1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272,
-     1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272,
-     1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272,
-     1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272,
-
-     1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272,
-     1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272, 1272,
-     1272, 1272, 1272, 1272, 1272, 1272, 1290, 1290, 1290,    0,
-     1318, 1290, 1290, 1325, 1319, 1319, 1319, 1328, 1329, 1331,
-     1333, 1334, 1290, 1290,    0,    0,    0, 1318, 1290, 1319,
-     1325, 1360, 1364,    0, 1398, 1372, 1329, 1402, 1328, 1372,
-     1331, 1318, 1334, 1333, 1325, 1336, 1336, 1336, 1328, 1329,
-     1331, 1333, 1334, 1364, 1360, 1290, 1290, 1290, 1318, 1290,
-     1336, 1325, 1360, 1364, 1348, 1398, 1372, 1329, 1402, 1328,
-     1372, 1331,    0, 1334, 1333, 1337, 1348, 1409,    0, 1337,
-
-     1337, 1367,    0,    0, 1364, 1360, 1290, 1386, 1290, 1363,
-     1363, 1363, 1386, 1336, 1424, 1348, 1319, 1321, 1321, 1321,
-     1367,    0, 1321, 1321, 1363, 1375, 1337, 1348, 1409, 1375,
-     1337, 1337, 1367, 1321, 1321,    0,    0,    0, 1386, 1321,
-        0,    0,    0, 1386, 1336, 1424,    0, 1336,    0,    0,
-        0, 1367, 1373, 1425, 1378, 1429, 1375, 1363, 1373, 1431,
-     1375, 1369, 1378,    0, 1433, 1437, 1321, 1321, 1321,    0,
-     1321, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368, 1368,
-     1368, 1368, 1370, 1373, 1425, 1378, 1429,    0, 1363, 1373,
-     1431, 1363, 1369, 1378, 1381, 1433, 1437, 1321,    0, 1321,
-
-     1369, 1369, 1369, 1369, 1369, 1369, 1369, 1369, 1369, 1369,
-     1369,    0, 1438, 1370, 1371, 1371, 1371, 1371, 1371, 1371,
-     1371, 1371, 1371, 1371, 1371, 1381, 1370, 1370, 1370, 1370,
-     1370, 1370, 1370, 1370, 1370, 1370, 1370, 1399,    0,    0,
-        0, 1432, 1436, 1438, 1435, 1442, 1443, 1432, 1381, 1381,
-     1381, 1381, 1381, 1381, 1381, 1381, 1381, 1381, 1381,    0,
-        0,    0,    0, 1400,    0, 1435, 1442, 1436, 1399, 1401,
-     1401, 1401, 1432, 1436, 1401, 1435, 1442, 1443, 1432,    0,
-        0,    0, 1401, 1399, 1399, 1399, 1399, 1399, 1399, 1399,
-     1399, 1399, 1399, 1399, 1400, 1401, 1435, 1442, 1436,    0,
-
-        0, 1444, 1434,    0, 1400, 1400, 1400, 1400, 1400, 1400,
-     1400, 1400, 1400, 1400, 1400, 1404, 1404, 1404,    0, 1434,
-     1404,    0, 1405, 1405, 1405, 1452, 1401, 1405, 1404, 1408,
-     1408, 1408, 1444, 1434, 1408, 1405, 1445, 1439, 1439, 1439,
-     1453, 1404, 1408, 1446, 1415, 1415, 1415,    0, 1405, 1415,
-     1434, 1401, 1439, 1447, 1446, 1408, 1452, 1415, 1448, 1445,
-     1415, 1415, 1454, 1458,    0,    0,    0, 1445, 1459, 1454,
-     1415, 1453, 1404,    0, 1446, 1448, 1455, 1461, 1447, 1405,
-     1449, 1449, 1449, 1462, 1447, 1446, 1408, 1455,    0, 1448,
-     1445, 1463,    0, 1454, 1458, 1449, 1418, 1404,    0, 1459,
-
-     1454, 1415,    0,    0, 1405,    0, 1448, 1455, 1461, 1447,
-        0, 1408, 1410, 1410, 1462,    0,    0,    0, 1455, 1439,
-        0, 1466, 1463, 1410, 1410,    0, 1415, 1418, 1419, 1410,
-     1417, 1417, 1417, 1417, 1417, 1417, 1417, 1417, 1417, 1417,
-     1417, 1418, 1418, 1418, 1418, 1418, 1418, 1418, 1418, 1418,
-     1418, 1418, 1466, 1471, 1472, 1473, 1410, 1410, 1410, 1419,
-     1410,    0, 1449,    0,    0,    0, 1419, 1419, 1419, 1419,
-     1419, 1419, 1419, 1419, 1419, 1419, 1419, 1906, 1906, 1906,
-     1966, 1966, 1966,    0, 1471, 1472, 1473, 1410, 1410, 1410,
-     1410, 1410, 1410, 1410, 1410, 1410, 1410, 1410, 1410, 1413,
-
-     1413, 1413, 1413, 1413, 1413, 1413, 1413, 1413, 1413, 1413,
-     1413, 1413, 1413, 1413, 1413, 1413, 1413, 1413, 1413, 1413,
-     1413, 1413, 1421, 1474, 1475, 1476, 1413, 1427, 1427, 1427,
-     1427, 1427, 1427, 1427, 1427, 1427, 1427, 1427,    0,    0,
-        0,    0,    0,    0, 1477, 1422,    0, 1478, 1479, 1480,
-     1481,    0, 1482, 1421, 1474, 1475, 1476, 1413,    0, 1906,
-        0,    0, 1966, 1421, 1421, 1421, 1421, 1421, 1421, 1421,
-     1421, 1421, 1421, 1421, 1423, 1477, 1422, 1426, 1478, 1479,
-     1480, 1481, 1413, 1482,    0,    0, 1413, 1413,    0, 1413,
-     1422, 1422, 1422, 1422, 1422, 1422, 1422, 1422, 1422, 1422,
-
-     1422,    0,    0, 1428,    0, 1423, 1483, 1484, 1426, 1485,
-     1486, 1487, 1423, 1423, 1423, 1423, 1423, 1423, 1423, 1423,
-     1423, 1423, 1423, 1426, 1426, 1426, 1426, 1426, 1426, 1426,
-     1426, 1426, 1426, 1426, 1428, 1460,    0, 1483, 1484, 1488,
-     1485, 1486, 1487, 1489,    0,    0, 1460, 1465, 1428, 1428,
-     1428, 1428, 1428, 1428, 1428, 1428, 1428, 1428, 1428, 1441,
-     1441, 1441, 1465, 1490, 1441, 1441, 1460, 1464, 1464, 1464,
-     1488, 1467, 1491, 1492, 1489, 1441, 1441, 1460, 1465,    0,
-        0, 1441, 1464, 1467,    0, 1493, 1494,    0, 1500, 1495,
-        0,    0, 1494, 1465, 1490, 1495, 1468, 1468, 1468, 1514,
-
-     1496,    0, 1467, 1491, 1492,    0,    0, 1506, 1441, 1441,
-     1441, 1468, 1441,    0, 1467, 1464, 1493, 1494, 1468, 1500,
-     1495, 1496, 1468, 1494, 1501, 1502, 1495,    0, 1506, 1503,
-     1514, 1496, 1502,    0, 1468, 1497, 1497, 1497, 1506, 1441,
-     1516, 1441, 1451, 1451, 1451, 1501, 1464, 1451, 1451, 1464,
-     1497,    0, 1496, 1468,    0, 1501, 1502,    0, 1451, 1451,
-     1503,    0,    0, 1502, 1451, 1468, 1505, 1517, 1507, 1510,
-     1518, 1516,    0, 1507, 1508, 1505, 1501, 1510, 1468, 1503,
-     1503, 1503, 1503, 1503, 1503, 1503, 1503, 1503, 1503, 1503,
-     1508, 1451, 1451, 1451,    0, 1451,    0, 1505, 1517, 1507,
-
-     1510, 1518, 1509, 1504, 1507, 1508, 1505, 1509, 1510, 1511,
-        0,    0, 1519, 1520, 1511,    0,    0, 1497,    0,    0,
-        0, 1508, 1451,    0, 1451, 1470, 1470, 1470, 1521, 1522,
-     1470, 1470, 1512, 1509, 1504, 1523, 1524, 1512, 1509, 1525,
-     1511, 1470, 1470, 1519, 1520, 1511, 1513, 1470, 1504, 1504,
-     1504, 1504, 1504, 1504, 1504, 1504, 1504, 1504, 1504, 1521,
-     1522, 1526, 1527, 1512, 1528, 1534, 1523, 1524, 1512, 1536,
-     1525, 1541, 1550, 1551, 1470, 1470, 1470, 1513, 1470,    0,
-     1513, 1513, 1513, 1513, 1513, 1513, 1513, 1513, 1513, 1513,
-     1513, 1529, 1526, 1527,    0, 1528, 1534, 1554, 1555,    0,
-
-     1536, 1561, 1541, 1550, 1551, 1470,    0, 1470, 1499, 1499,
-     1499,    0,    0, 1499, 1499,    0,    0, 1558, 1530, 1555,
-     1568, 1569, 1529, 1558, 1499, 1499,    0,    0, 1554, 1555,
-     1499,    0, 1561,    0,    0,    0,    0, 1529, 1529, 1529,
-     1529, 1529, 1529, 1529, 1529, 1529, 1529, 1529, 1558, 1530,
-     1555, 1568, 1569,    0, 1558,    0, 1570, 1499, 1499, 1499,
-     1576, 1499, 1530, 1530, 1530, 1530, 1530, 1530, 1530, 1530,
-     1530, 1530, 1530, 1531, 1531, 1531,    0, 1570, 1531, 1532,
-     1532, 1532,    0,    0, 1532,    0, 1531, 1570, 1499, 1556,
-     1499, 1576, 1532, 1533, 1533, 1533, 1580,    0, 1533, 1531,
-
-     1556, 1582, 1535, 1535, 1535, 1532, 1533, 1535, 1570,    0,
-     1562, 1539, 1539, 1539, 1557, 1535, 1539, 1581, 1563, 1533,
-     1556, 1563, 1532, 1581, 1539, 1562, 1557, 1580, 1535,    0,
-     1531, 1556, 1582,    0, 1564, 1565, 1532, 1539, 1543, 1543,
-     1543, 1562, 1583, 1543,    0, 1557, 1565, 1564, 1581, 1563,
-     1533, 1543, 1563, 1532, 1581, 1531, 1562, 1557, 1584, 1535,
-     1545, 1532,    0, 1588, 1543, 1564, 1565,    0, 1539,    0,
-        0,    0,    0, 1583,    0, 1533,    0, 1565, 1564,    0,
-        0, 1546,    0, 1590, 1535, 1537, 1537, 1537, 1592, 1584,
-     1537, 1545,    0, 1539, 1588, 1543,    0,    0, 1537,    0,
-
-     1545, 1545, 1545, 1545, 1545, 1545, 1545, 1545, 1545, 1545,
-     1545, 1537, 1546, 1548, 1590,    0, 1593, 1594, 1595, 1592,
-     1543, 1574, 1574, 1574,    0,    0, 1546, 1546, 1546, 1546,
-     1546, 1546, 1546, 1546, 1546, 1546, 1546,    0,    0,    0,
-        0,    0, 1537,    0, 1548,    0, 1547, 1593, 1594, 1595,
-     1596, 1574, 1597, 1548, 1548, 1548, 1548, 1548, 1548, 1548,
-     1548, 1548, 1548, 1548,    0,    0, 1537, 1537, 1537, 1537,
-     1537, 1537, 1537, 1537, 1537, 1537, 1537, 1547, 1549, 1571,
-     1598, 1596, 1574, 1597, 1599, 1600, 1601, 1571, 1552, 1602,
-     1547, 1547, 1547, 1547, 1547, 1547, 1547, 1547, 1547, 1547,
-
-     1547,    0,    0, 1574,    0,    0, 1577, 1577, 1577, 1549,
-     1571, 1598,    0,    0,    0, 1599, 1600, 1601, 1571, 1552,
-     1602, 1577,    0, 1549, 1549, 1549, 1549, 1549, 1549, 1549,
-     1549, 1549, 1549, 1549, 1552, 1552, 1552, 1552, 1552, 1552,
-     1552, 1552, 1552, 1552, 1552, 1553, 1553, 1553, 1553, 1553,
-     1553, 1553, 1553, 1553, 1553, 1553, 1575,    0, 1591, 1603,
-     1604, 1605, 1606, 1607, 1608, 1609, 1610, 1611, 1575,    0,
-        0,    0, 1612, 1615,    0,    0, 1591, 1616, 1617, 1620,
-     1615, 1621, 1622, 1606, 1611,    0,    0, 1575, 1577, 1591,
-     1603, 1604, 1605, 1606, 1607, 1608, 1609, 1610, 1611, 1575,
-
-     1579, 1579, 1579, 1612, 1615, 1579, 1579, 1591, 1616, 1617,
-     1620, 1615, 1621, 1622, 1606, 1611, 1579, 1579,    0,    0,
-        0, 1618, 1579, 1619, 1617, 1617, 1617, 1617, 1617, 1617,
-     1617, 1617, 1617, 1617, 1617, 1943, 1943, 1943,    0,    0,
-        0, 1623, 1624, 1625, 1619, 1626, 1624, 1629, 1632, 1579,
-     1579, 1579, 1618, 1579, 1619, 1943,    0,    0,    0,    0,
-        0, 1618, 1618, 1618, 1618, 1618, 1618, 1618, 1618, 1618,
-     1618, 1618, 1623, 1624, 1625, 1636, 1626, 1624, 1629, 1632,
-     1579, 1639, 1579, 1627, 1627, 1627, 1627, 1627, 1627, 1627,
-     1627, 1627, 1627, 1627, 1640, 1641, 1642, 1643, 1644, 1646,
-
-     1650,    0, 1665,    0,    0,    0, 1636,    0,    0, 1771,
-     1771, 1771, 1639,    0,    0, 1666,    0, 1943,    0, 1647,
-     1647, 1647,    0, 1771, 1647, 1640, 1641, 1642, 1643, 1644,
-     1646, 1650, 1647, 1665, 1644, 1644, 1644, 1644, 1644, 1644,
-     1644, 1644, 1644, 1644, 1644, 1647, 1666, 1643, 1643, 1643,
-     1643, 1643, 1643, 1643, 1643, 1643, 1643, 1643, 1645, 1645,
-     1645,    0,    0, 1645, 1648, 1648, 1648,    0,    0, 1648,
-        0, 1645,    0, 1649, 1649, 1649, 1647, 1648, 1649,    0,
-     1668, 1645,    0, 1669, 1645, 1670, 1649, 1651, 1651, 1651,
-     1648, 1771, 1651, 1652, 1652, 1652,    0, 1670, 1652, 1649,
-
-     1651, 1647,    0, 1651, 1651, 1672, 1652, 1676, 1683, 1652,
-     1652, 1668, 1645, 1651, 1669, 1645, 1670,    0, 1684, 1652,
-        0, 1648, 1654, 1654, 1654,    0, 1672, 1654, 1670,    0,
-     1649,    0, 1655, 1655, 1655, 1654, 1672, 1655, 1676, 1683,
-     1645, 1671,    0, 1689, 1651, 1655, 1648, 1671, 1654, 1684,
-     1652, 1656, 1656, 1656,    0, 1649, 1656, 1672, 1655,    0,
-     1657, 1657, 1657, 1677, 1656, 1657, 1675, 1675, 1675, 1651,
-     1677, 1691, 1671, 1657, 1689, 1652, 1678, 1656, 1671, 1654,
-     1658, 1658, 1658,    0,    0, 1658, 1657, 1692,    0, 1655,
-     1659, 1659, 1659, 1658, 1677, 1659, 1675, 1678, 1686,    0,
-
-        0, 1677, 1691, 1659, 1654, 1679, 1658, 1678, 1656, 1682,
-     1682, 1682, 1685, 1679, 1655, 1686, 1659, 1657, 1692, 1660,
-     1685, 1695,    0, 1658, 1696, 1697, 1698, 1675, 1678, 1686,
-     1687, 1687, 1687, 1656, 1702, 1703, 1679, 1658, 1704, 1682,
-     1705,    0, 1657, 1685, 1679, 1687, 1686, 1659, 1675,    0,
-     1660, 1685, 1695, 1661, 1658, 1696, 1697, 1698, 1706, 1707,
-        0,    0, 1658,    0,    0, 1702, 1703,    0,    0, 1704,
-     1682, 1705, 1659, 1660, 1660, 1660, 1660, 1660, 1660, 1660,
-     1660, 1660, 1660, 1660, 1661, 1662, 1663, 1708, 1710, 1706,
-     1707, 1682, 1661, 1661, 1661, 1661, 1661, 1661, 1661, 1661,
-
-     1661, 1661, 1661, 1711, 1712, 1713, 1714, 1715,    0,    0,
-        0,    0, 1687,    0,    0,    0, 1662, 1663, 1708, 1710,
-     1664, 1662, 1662, 1662, 1662, 1662, 1662, 1662, 1662, 1662,
-     1662, 1662,    0,    0, 1711, 1712, 1713, 1714, 1715, 1667,
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+     2602, 2602, 2602, 2602, 2602, 2602, 2602, 2602, 2602, 2602,
+     2603, 2603,    0, 2603, 2603, 2603, 2603, 2603, 2603, 2603,
+     2603, 2603, 2603, 2603, 2603, 2603, 2603, 2603, 2604, 2604,
+        0,    0,    0, 2604,    0,    0,    0,    0, 2604, 2604,
+     2604, 2604, 2605,    0, 2605, 2605, 2605, 2605, 2606, 2606,
+        0, 2606, 2606, 2606, 2606, 2606, 2606, 2606, 2606, 2606,
+     2606, 2606, 2606, 2606, 2606, 2606, 2607, 2607,    0, 2607,
+     2607, 2607, 2607, 2607, 2607, 2607, 2607, 2607, 2607, 2607,
+
+     2607, 2607, 2607, 2607, 2608, 2608,    0, 2608, 2608, 2608,
+     2608, 2608, 2608, 2608, 2608, 2608, 2608, 2608, 2608, 2608,
+     2608, 2608, 2609, 2609,    0, 2609, 2609, 2609, 2609, 2609,
+     2609, 2609, 2609, 2609, 2609, 2609, 2609, 2609, 2609, 2609,
+     2610, 2610,    0,    0,    0, 2610,    0,    0,    0,    0,
+     2610, 2610, 2610, 2610, 2611,    0, 2611, 2611, 2611, 2611,
+     2612, 2612,    0,    0,    0, 2612,    0,    0,    0,    0,
+     2612, 2612, 2612, 2612, 2613,    0, 2613, 2613, 2613, 2613,
+     2614, 2614,    0, 2614, 2614, 2614, 2614, 2614, 2614, 2614,
+     2614, 2614, 2614, 2614, 2614, 2614, 2614, 2614, 2615, 2615,
+
+        0, 2615, 2615, 2615, 2615, 2615, 2615, 2615, 2615, 2615,
+     2615, 2615, 2615, 2615, 2615, 2615, 2616, 2616,    0, 2616,
+     2616, 2616, 2616, 2616, 2616, 2616, 2616, 2616, 2616, 2616,
+     2616, 2616, 2616, 2616, 2617, 2617,    0,    0,    0, 2617,
+        0,    0,    0,    0, 2617, 2617, 2617, 2617, 2618,    0,
+     2618, 2618, 2618, 2618, 2619, 2619,    0, 2619, 2619, 2619,
+     2619, 2619, 2619, 2619, 2619, 2619, 2619, 2619, 2619, 2619,
+     2619, 2619, 2620, 2620,    0, 2620, 2620, 2620, 2620, 2620,
+     2620, 2620, 2620, 2620, 2620, 2620, 2620, 2620, 2620, 2620,
+     2621, 2621, 2621,    0,    0,    0, 2621,    0,    0,    0,
+
+        0, 2621, 2621, 2621, 2621, 2622, 2622,    0, 2622, 2622,
+     2622, 2622, 2622, 2622, 2622, 2622, 2622, 2622, 2622, 2622,
+     2622, 2622, 2622, 2623, 2623,    0, 2623, 2623, 2623, 2623,
+     2623, 2623, 2623, 2623, 2623, 2623, 2623, 2623, 2623, 2623,
+     2623, 2624, 2624, 2624,    0,    0, 2624,    0,    0,    0,
+        0, 2624, 2624, 2624, 2624, 2625, 2625, 2625, 2625, 2625,
+     2625, 2625, 2625, 2625, 2625, 2625, 2625, 2625, 2625, 2625,
+     2625, 2625, 2625, 2626, 2626,    0,    0, 2626, 2626,    0,
+        0,    0,    0, 2626, 2626, 2626, 2626, 2627, 2627,    0,
+        0,    0, 2627,    0,    0,    0, 2627, 2627, 2627, 2627,
+
+     2627, 2628, 2628,    0,    0,    0, 2628,    0,    0,    0,
+        0, 2628, 2628, 2628, 2628, 2629, 2629,    0,    0, 2629,
+     2629,    0,    0,    0,    0, 2629, 2629, 2629, 2629, 2630,
+     2630, 2630,    0,    0,    0, 2630,    0,    0,    0,    0,
+     2630, 2630, 2630, 2630, 2631, 2631, 2631,    0,    0, 2631,
+        0,    0,    0,    0, 2631, 2631, 2631, 2631, 2632, 2632,
+        0,    0,    0, 2632,    0,    0,    0,    0, 2632, 2632,
+     2632, 2632, 2633, 2633,    0,    0,    0, 2633,    0,    0,
+        0, 2633, 2633, 2633, 2633, 2633, 2634,    0, 2634,    0,
+     2634, 2635,    0, 2635,    0, 2635, 2636, 2636,    0, 2636,
+
+     2636, 2636, 2636, 2636, 2636, 2636, 2636, 2636, 2636, 2636,
+     2636, 2636, 2636, 2636, 2637, 2637,    0, 2637, 2637, 2637,
+     2637, 2637, 2637, 2637, 2637, 2637, 2637, 2637, 2637, 2637,
+     2637, 2637, 2638, 2638,    0, 2638, 2638, 2638, 2638, 2638,
+     2638, 2638, 2638, 2638, 2638, 2638, 2638, 2638, 2638, 2638,
+     2639, 2639,    0, 2639, 2639, 2639, 2639, 2639, 2639, 2639,
+     2639, 2639, 2639, 2639, 2639, 2639, 2639, 2639, 2640, 2640,
+        0, 2640, 2640, 2640, 2640, 2640, 2640, 2640, 2640, 2640,
+     2640, 2640, 2640, 2640, 2640, 2640, 2641, 2641, 2641, 2641,
+     2641, 2641, 2641, 2641, 2641, 2641, 2641, 2641, 2641, 2641,
+
+     2641, 2641, 2641, 2641, 2642, 2642,    0,    0,    0, 2642,
+        0,    0,    0,    0, 2642, 2642, 2642, 2642, 2643, 2643,
+     2643, 2643, 2643, 2643, 2643, 2643, 2643, 2643, 2643, 2643,
+     2643, 2643, 2643, 2643, 2643, 2643, 2644, 2644,    0, 2644,
+     2644, 2644, 2644, 2644, 2644, 2644, 2644, 2644, 2644, 2644,
+     2644, 2644, 2644, 2644, 2645, 2645,    0, 2645, 2645, 2645,
+     2645, 2645, 2645, 2645, 2645, 2645, 2645, 2645, 2645, 2645,
+     2645, 2645, 2646, 2646, 2646, 2646, 2646, 2646, 2646, 2646,
+     2646, 2646, 2646, 2646, 2646, 2646, 2646, 2646, 2646, 2646,
+     2647, 2647,    0,    0,    0, 2647,    0,    0,    0,    0,
+
+     2647, 2647, 2647, 2647, 2648, 2648,    0,    0,    0, 2648,
+        0,    0,    0,    0, 2648, 2648, 2648, 2648, 2649, 2649,
+        0, 2649, 2649, 2649, 2649, 2649, 2649, 2649, 2649, 2649,
+     2649, 2649, 2649, 2649, 2649, 2649, 2650, 2650,    0, 2650,
+     2650, 2650, 2650, 2650, 2650, 2650, 2650, 2650, 2650, 2650,
+     2650, 2650, 2650, 2650, 2651, 2651, 2651, 2651, 2651, 2651,
+     2651, 2651, 2651, 2651, 2651, 2651, 2651, 2651, 2651, 2651,
+     2651, 2651, 2652, 2652,    0,    0, 2652, 2652,    0,    0,
+        0,    0, 2652, 2652, 2652, 2652, 2653, 2653, 2653, 2653,
+     2653, 2653, 2653, 2653, 2653, 2653, 2653, 2653, 2653, 2653,
+
+     2653, 2653, 2653, 2653, 2654, 2654, 2654, 2654, 2654, 2654,
+     2654, 2654, 2654, 2654, 2654, 2654, 2654, 2654, 2654, 2654,
+     2654, 2654, 2655, 2655,    0, 2655, 2655, 2655, 2655, 2655,
+     2655, 2655, 2655, 2655, 2655, 2655, 2655, 2655, 2655, 2655,
+     2656, 2656,    0, 2656, 2656, 2656, 2656, 2656, 2656, 2656,
+     2656, 2656, 2656, 2656, 2656, 2656, 2656, 2656, 2657, 2657,
+        0,    0, 2657, 2657,    0,    0,    0,    0, 2657, 2657,
+     2657, 2657, 2658, 2658,    0,    0,    0, 2658,    0,    0,
+        0,    0, 2658, 2658, 2658, 2658, 2659, 2659,    0,    0,
+     2659, 2659, 2659,    0,    0,    0, 2659, 2659, 2659, 2659,
+
+     2660, 2660,    0,    0,    0, 2660,    0,    0,    0,    0,
+     2660, 2660, 2660, 2660, 2661,    0, 2661,    0, 2661, 2662,
+        0, 2662,    0, 2662, 2663, 2663, 2663, 2663, 2663, 2663,
+     2663, 2663, 2663, 2663, 2663, 2663, 2663, 2663, 2663, 2663,
+     2663, 2663, 2664, 2664, 2664, 2664, 2664, 2664, 2664, 2664,
+     2664, 2664, 2664, 2664, 2664, 2664, 2664, 2664, 2664, 2664,
+     2665, 2665, 2665, 2665, 2665, 2665, 2665, 2665, 2665, 2665,
+     2665, 2665, 2665, 2665, 2665, 2665, 2665, 2665, 2666, 2666,
+        0, 2666, 2666, 2666, 2666, 2666, 2666, 2666, 2666, 2666,
+     2666, 2666, 2666, 2666, 2666, 2666, 2667, 2667,    0, 2667,
+
+     2667, 2667, 2667, 2667, 2667, 2667, 2667, 2667, 2667, 2667,
+     2667, 2667, 2667, 2667, 2668, 2668,    0,    0,    0, 2668,
+        0,    0,    0,    0, 2668, 2668, 2668, 2668, 2669, 2669,
+        0, 2669, 2669, 2669, 2669, 2669, 2669, 2669, 2669, 2669,
+     2669, 2669, 2669, 2669, 2669, 2669, 2670, 2670,    0, 2670,
+     2670, 2670, 2670, 2670, 2670, 2670, 2670, 2670, 2670, 2670,
+     2670, 2670, 2670, 2670, 2671, 2671,    0, 2671, 2671, 2671,
+     2671, 2671, 2671, 2671, 2671, 2671, 2671, 2671, 2671, 2671,
+     2671, 2671, 2672, 2672,    0,    0,    0, 2672,    0,    0,
+        0,    0, 2672, 2672, 2672, 2672, 2673, 2673,    0,    0,
+
+        0, 2673,    0,    0,    0,    0, 2673, 2673, 2673, 2673,
+     2674, 2674,    0, 2674, 2674, 2674, 2674, 2674, 2674, 2674,
+     2674, 2674, 2674, 2674, 2674, 2674, 2674, 2674, 2675, 2675,
+        0, 2675, 2675, 2675, 2675, 2675, 2675, 2675, 2675, 2675,
+     2675, 2675, 2675, 2675, 2675, 2675, 2676, 2676,    0,    0,
+     2676, 2676,    0,    0,    0,    0, 2676, 2676, 2676, 2676,
+     2677, 2677,    0, 2677, 2677, 2677, 2677, 2677, 2677, 2677,
+     2677, 2677, 2677, 2677, 2677, 2677, 2677, 2677, 2678, 2678,
+        0, 2678, 2678, 2678, 2678, 2678, 2678, 2678, 2678, 2678,
+     2678, 2678, 2678, 2678, 2678, 2678, 2679, 2679,    0,    0,
+
+     2679, 2679,    0,    0,    0,    0, 2679, 2679, 2679, 2679,
+     2680, 2680,    0,    0,    0, 2680,    0,    0,    0,    0,
+     2680, 2680, 2680, 2680, 2681, 2681,    0,    0, 2681, 2681,
+        0,    0,    0,    0, 2681, 2681, 2681, 2681, 2682, 2682,
+        0,    0,    0, 2682,    0,    0,    0,    0, 2682, 2682,
+     2682, 2682, 2683,    0, 2683,    0, 2683, 2684,    0, 2684,
+        0, 2684, 2685, 2685,    0, 2685, 2685, 2685, 2685, 2685,
+     2685, 2685, 2685, 2685, 2685, 2685, 2685, 2685, 2685, 2685,
+     2686, 2686,    0, 2686, 2686, 2686, 2686, 2686, 2686, 2686,
+     2686, 2686, 2686, 2686, 2686, 2686, 2686, 2686, 2687, 2687,
+
+        0, 2687, 2687, 2687, 2687, 2687, 2687, 2687, 2687, 2687,
+     2687, 2687, 2687, 2687, 2687, 2687, 2688, 2688,    0,    0,
+        0, 2688,    0,    0,    0,    0, 2688, 2688, 2688, 2688,
+     2689, 2689,    0,    0,    0, 2689,    0,    0,    0,    0,
+     2689, 2689, 2689, 2689, 2690, 2690, 2690, 2690, 2690, 2690,
+     2690, 2690, 2690, 2690, 2690, 2690, 2690, 2690, 2690, 2690,
+     2690, 2690, 2691, 2691, 2691, 2691, 2691, 2691, 2691, 2691,
+     2691, 2691, 2691, 2691, 2691, 2691, 2691, 2691, 2691, 2691,
+     2692, 2692, 2692, 2692, 2692, 2692, 2692, 2692, 2692, 2692,
+     2692, 2692, 2692, 2692, 2692, 2692, 2692, 2692, 2693, 2693,
+
+     2693, 2693, 2693, 2693, 2693, 2693, 2693, 2693, 2693, 2693,
+     2693, 2693, 2693, 2693, 2693, 2693, 2694, 2694, 2694, 2694,
+     2694, 2694, 2694, 2694, 2694, 2694, 2694, 2694, 2694, 2694,
+     2694, 2694, 2694, 2694, 2695, 2695, 2695, 2695, 2695, 2695,
+     2695, 2695, 2695, 2695, 2695, 2695, 2695, 2695, 2695, 2695,
+     2695, 2695, 2696, 2696, 2696, 2696, 2696, 2696, 2696, 2696,
+     2696, 2696, 2696, 2696, 2696, 2696, 2696, 2696, 2696, 2696,
+     2697, 2697, 2697, 2697, 2697, 2697, 2697, 2697, 2697, 2697,
+     2697, 2697, 2697, 2697, 2697, 2697, 2697, 2697, 2698, 2698,
+     2698, 2698, 2698, 2698, 2698, 2698, 2698, 2698, 2698, 2698,
+
+     2698, 2698, 2698, 2698, 2698, 2698, 2699, 2699, 2699, 2699,
+     2699, 2699, 2699, 2699, 2699, 2699, 2699, 2699, 2699, 2699,
+     2699, 2699, 2699, 2699, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+
+     2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514, 2514,
+     2514, 2514, 2514, 2514, 2514, 2514, 2514
     } ;
 
 /* The intent behind this definition is that it'll catch
@@ -4959,10 +5026,13 @@ do {\
 
 
 
+ 
 
 
 
-#line 4967 "ob_proxy_parser_gbk_lex.c"
+/* limit the length of int_num from 1 to 17 in case of int64_t out of bound, 17 -> [ ( length of 2^64 ) - 2 ]*/
+/* binlog relate SQL */
+#line 5037 "ob_proxy_parser_gbk_lex.c"
 
 #define INITIAL 0
 #define hint 1
@@ -4989,9 +5059,10 @@ do {\
 #define prepare 22
 #define insert_all_expr 23
 #define set_expr 24
-#define show_topology 25
-#define show_tables 26
-#define proxy_icmd_state 27
+#define show_elastic_id 25
+#define show_topology 26
+#define show_tables 27
+#define proxy_icmd_state 28
 
 #ifndef YY_NO_UNISTD_H
 /* Special case for "unistd.h", since it is non-ANSI. We include it way
@@ -5233,11 +5304,11 @@ YY_DECL
 	register int yy_act;
     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
 
-#line 386 "ob_proxy_parser_gbk.l"
+#line 398 "ob_proxy_parser_gbk.l"
 
 
  /* basic dml stmt: */
-#line 5243 "ob_proxy_parser_gbk_lex.c"
+#line 5314 "ob_proxy_parser_gbk_lex.c"
 
     yylval = yylval_param;
 
@@ -5294,13 +5365,13 @@ YY_DECL
 			while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 				{
 				yy_current_state = (int) yy_def[yy_current_state];
-				if ( yy_current_state >= 2327 )
+				if ( yy_current_state >= 2515 )
 					yy_c = yy_meta[(unsigned int) yy_c];
 				}
 			yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
 			++yy_cp;
 			}
-		while ( yy_base[yy_current_state] != 15602 );
+		while ( yy_base[yy_current_state] != 15625 );
 
 yy_find_action:
 		yy_act = yy_accept[yy_current_state];
@@ -5326,86 +5397,86 @@ YY_DECL
 
 case 1:
 YY_RULE_SETUP
-#line 389 "ob_proxy_parser_gbk.l"
+#line 401 "ob_proxy_parser_gbk.l"
 { SET_DML_STMT(OBPROXY_T_SELECT); PUSH_STATE(in_expr); return SELECT; }
 	YY_BREAK
 case 2:
 YY_RULE_SETUP
-#line 390 "ob_proxy_parser_gbk.l"
+#line 402 "ob_proxy_parser_gbk.l"
 { SET_DML_STMT(OBPROXY_T_DELETE); PUSH_STATE_IF_NOT_ICMD(in_expr); return DELETE; }
 	YY_BREAK
 case 3:
 YY_RULE_SETUP
-#line 391 "ob_proxy_parser_gbk.l"
+#line 403 "ob_proxy_parser_gbk.l"
 { SET_DML_STMT(OBPROXY_T_INSERT); return INSERT; }
 	YY_BREAK
 case 4:
 YY_RULE_SETUP
-#line 392 "ob_proxy_parser_gbk.l"
+#line 404 "ob_proxy_parser_gbk.l"
 { SET_DML_STMT(OBPROXY_T_UPDATE); return UPDATE; }
 	YY_BREAK
 case 5:
 YY_RULE_SETUP
-#line 393 "ob_proxy_parser_gbk.l"
+#line 405 "ob_proxy_parser_gbk.l"
 { SET_DML_STMT(OBPROXY_T_REPLACE); return REPLACE; }
 	YY_BREAK
 case 6:
 YY_RULE_SETUP
-#line 394 "ob_proxy_parser_gbk.l"
+#line 406 "ob_proxy_parser_gbk.l"
 { SET_DML_STMT(OBPROXY_T_MERGE); return MERGE; }
 	YY_BREAK
 case 7:
 YY_RULE_SETUP
-#line 395 "ob_proxy_parser_gbk.l"
+#line 407 "ob_proxy_parser_gbk.l"
 { SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW; }
 	YY_BREAK
 case 8:
 YY_RULE_SETUP
-#line 396 "ob_proxy_parser_gbk.l"
+#line 408 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(XA); }
 	YY_BREAK
 /* if begin is for starting transaction, will set has_anonymous_block = false in yacc */
 case 9:
 YY_RULE_SETUP
-#line 398 "ob_proxy_parser_gbk.l"
+#line 410 "ob_proxy_parser_gbk.l"
 { SET_HAS_ANONYMOUS_BLOCK(); RETURN_NON_RESERVED_KEYWORD(BEGI); }
 	YY_BREAK
 case 10:
 YY_RULE_SETUP
-#line 399 "ob_proxy_parser_gbk.l"
+#line 411 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(START); }
 	YY_BREAK
 case 11:
 YY_RULE_SETUP
-#line 400 "ob_proxy_parser_gbk.l"
+#line 412 "ob_proxy_parser_gbk.l"
 { SET_BASIC_STMT(OBPROXY_T_COMMIT); RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case 12:
 YY_RULE_SETUP
-#line 401 "ob_proxy_parser_gbk.l"
+#line 413 "ob_proxy_parser_gbk.l"
 { SET_BASIC_STMT(OBPROXY_T_ROLLBACK); RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case 13:
 YY_RULE_SETUP
-#line 402 "ob_proxy_parser_gbk.l"
+#line 414 "ob_proxy_parser_gbk.l"
 { SET_BASIC_STMT(OBPROXY_T_SET); PUSH_STATE_IF_NOT_ICMD(set_expr); return SET; }
 	YY_BREAK
 case 14:
 YY_RULE_SETUP
-#line 403 "ob_proxy_parser_gbk.l"
+#line 415 "ob_proxy_parser_gbk.l"
 { SET_BASIC_STMT(OBPROXY_T_CALL); return CALL; }
 	YY_BREAK
 case 15:
 YY_RULE_SETUP
-#line 404 "ob_proxy_parser_gbk.l"
+#line 416 "ob_proxy_parser_gbk.l"
 { SET_HAS_ANONYMOUS_BLOCK(); PUSH_STATE(in_anonymous_block); }
 	YY_BREAK
 case 16:
 YY_RULE_SETUP
-#line 405 "ob_proxy_parser_gbk.l"
+#line 417 "ob_proxy_parser_gbk.l"
 { ObProxyParseResult *p = ob_proxy_parser_gbk_yyget_extra(yyscanner);
                    if (OB_NOTNULL(p)) {
-                     if (OBPROXY_T_INSERT == p->cur_stmt_type_) 
+                     if (OBPROXY_T_INSERT == p->cur_stmt_type_)
                        PUSH_STATE(insert_all_expr);
                    }
                    return WHEN; }
@@ -5413,338 +5484,338 @@ YY_RULE_SETUP
 /* basic ddl stmt */
 case 17:
 YY_RULE_SETUP
-#line 413 "ob_proxy_parser_gbk.l"
+#line 425 "ob_proxy_parser_gbk.l"
 { return CREATE; }
 	YY_BREAK
 case 18:
 YY_RULE_SETUP
-#line 414 "ob_proxy_parser_gbk.l"
+#line 426 "ob_proxy_parser_gbk.l"
 { return DROP; }
 	YY_BREAK
 case 19:
 YY_RULE_SETUP
-#line 415 "ob_proxy_parser_gbk.l"
+#line 427 "ob_proxy_parser_gbk.l"
 { return ALTER; }
 	YY_BREAK
 case 20:
 YY_RULE_SETUP
-#line 416 "ob_proxy_parser_gbk.l"
+#line 428 "ob_proxy_parser_gbk.l"
 { return TRUNCATE; }
 	YY_BREAK
 case 21:
 YY_RULE_SETUP
-#line 417 "ob_proxy_parser_gbk.l"
+#line 429 "ob_proxy_parser_gbk.l"
 { return RENAME; }
 	YY_BREAK
 case 22:
 YY_RULE_SETUP
-#line 418 "ob_proxy_parser_gbk.l"
+#line 430 "ob_proxy_parser_gbk.l"
 { return INDEX; }
 	YY_BREAK
 case 23:
 YY_RULE_SETUP
-#line 419 "ob_proxy_parser_gbk.l"
+#line 431 "ob_proxy_parser_gbk.l"
 { return TABLE; }
 	YY_BREAK
 case 24:
 YY_RULE_SETUP
-#line 420 "ob_proxy_parser_gbk.l"
+#line 432 "ob_proxy_parser_gbk.l"
 { return STATUS; }
 	YY_BREAK
 case 25:
 YY_RULE_SETUP
-#line 421 "ob_proxy_parser_gbk.l"
+#line 433 "ob_proxy_parser_gbk.l"
 { return FROM; }
 	YY_BREAK
 case 26:
 YY_RULE_SETUP
-#line 422 "ob_proxy_parser_gbk.l"
+#line 434 "ob_proxy_parser_gbk.l"
 { return UNIQUE; }
 	YY_BREAK
 /* ps stmt */
 case 27:
 YY_RULE_SETUP
-#line 425 "ob_proxy_parser_gbk.l"
+#line 437 "ob_proxy_parser_gbk.l"
 { return USING; }
 	YY_BREAK
 case 28:
 YY_RULE_SETUP
-#line 426 "ob_proxy_parser_gbk.l"
+#line 438 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(prepare); return PREPARE; }
 	YY_BREAK
 case 29:
 YY_RULE_SETUP
-#line 427 "ob_proxy_parser_gbk.l"
+#line 439 "ob_proxy_parser_gbk.l"
 { return EXECUTE; }
 	YY_BREAK
 case 30:
 YY_RULE_SETUP
-#line 428 "ob_proxy_parser_gbk.l"
-{ return DEALLOCATE; }   
+#line 440 "ob_proxy_parser_gbk.l"
+{ return DEALLOCATE; }
 	YY_BREAK
 /* oracle ddl stmt */
 case 31:
 YY_RULE_SETUP
-#line 432 "ob_proxy_parser_gbk.l"
+#line 444 "ob_proxy_parser_gbk.l"
 { return GRANT; }
 	YY_BREAK
 case 32:
 YY_RULE_SETUP
-#line 433 "ob_proxy_parser_gbk.l"
+#line 445 "ob_proxy_parser_gbk.l"
 { return REVOKE; }
 	YY_BREAK
 case 33:
 YY_RULE_SETUP
-#line 434 "ob_proxy_parser_gbk.l"
+#line 446 "ob_proxy_parser_gbk.l"
 { return ANALYZE; }
 	YY_BREAK
 case 34:
 YY_RULE_SETUP
-#line 435 "ob_proxy_parser_gbk.l"
+#line 447 "ob_proxy_parser_gbk.l"
 { return PURGE; }
 	YY_BREAK
 case 35:
 YY_RULE_SETUP
-#line 436 "ob_proxy_parser_gbk.l"
+#line 448 "ob_proxy_parser_gbk.l"
 { return COMMENT; }
 	YY_BREAK
 case 36:
 YY_RULE_SETUP
-#line 437 "ob_proxy_parser_gbk.l"
+#line 449 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(FLASHBACK); }
 	YY_BREAK
 case 37:
 YY_RULE_SETUP
-#line 438 "ob_proxy_parser_gbk.l"
+#line 450 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(AUDIT); }
 	YY_BREAK
 case 38:
 YY_RULE_SETUP
-#line 439 "ob_proxy_parser_gbk.l"
+#line 451 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(NOAUDIT); }
 	YY_BREAK
 case 39:
 YY_RULE_SETUP
-#line 441 "ob_proxy_parser_gbk.l"
+#line 453 "ob_proxy_parser_gbk.l"
 { return GROUP;}
 	YY_BREAK
 case 40:
 YY_RULE_SETUP
-#line 442 "ob_proxy_parser_gbk.l"
+#line 454 "ob_proxy_parser_gbk.l"
 { return HAVING;}
 	YY_BREAK
 case 41:
 YY_RULE_SETUP
-#line 443 "ob_proxy_parser_gbk.l"
+#line 455 "ob_proxy_parser_gbk.l"
 { return ORDER;}
 	YY_BREAK
 case 42:
 YY_RULE_SETUP
-#line 444 "ob_proxy_parser_gbk.l"
+#line 456 "ob_proxy_parser_gbk.l"
 { return FOR;}
 	YY_BREAK
 case 43:
 YY_RULE_SETUP
-#line 445 "ob_proxy_parser_gbk.l"
+#line 457 "ob_proxy_parser_gbk.l"
 { return UNION;}
 	YY_BREAK
 case 44:
 YY_RULE_SETUP
-#line 446 "ob_proxy_parser_gbk.l"
+#line 458 "ob_proxy_parser_gbk.l"
 { return AS; }
 	YY_BREAK
 case 45:
 YY_RULE_SETUP
-#line 447 "ob_proxy_parser_gbk.l"
+#line 459 "ob_proxy_parser_gbk.l"
 { return WHERE; }
 	YY_BREAK
 case 46:
 YY_RULE_SETUP
-#line 448 "ob_proxy_parser_gbk.l"
+#line 460 "ob_proxy_parser_gbk.l"
 { return VALUES; }
 	YY_BREAK
 case 47:
 YY_RULE_SETUP
-#line 449 "ob_proxy_parser_gbk.l"
+#line 461 "ob_proxy_parser_gbk.l"
 { return VALUES; }
 	YY_BREAK
 case 48:
 YY_RULE_SETUP
-#line 450 "ob_proxy_parser_gbk.l"
+#line 462 "ob_proxy_parser_gbk.l"
 { SET_HAS_EXPLAIN(); return EXPLAIN; }
 	YY_BREAK
 case 49:
 YY_RULE_SETUP
-#line 451 "ob_proxy_parser_gbk.l"
+#line 463 "ob_proxy_parser_gbk.l"
 { SET_HAS_EXPLAIN(); return DESC; }
 	YY_BREAK
 case 50:
 YY_RULE_SETUP
-#line 452 "ob_proxy_parser_gbk.l"
+#line 464 "ob_proxy_parser_gbk.l"
 { SET_HAS_EXPLAIN(); return DESCRIBE; }
 	YY_BREAK
 /*change from non_reserved to reserved according https://dev.mysql.com/doc/refman/5.6/en/keywords.html*/
 case 51:
 YY_RULE_SETUP
-#line 454 "ob_proxy_parser_gbk.l"
+#line 466 "ob_proxy_parser_gbk.l"
 { return READ; }
 	YY_BREAK
 case 52:
 YY_RULE_SETUP
-#line 455 "ob_proxy_parser_gbk.l"
+#line 467 "ob_proxy_parser_gbk.l"
 { return WITH; }
 	YY_BREAK
 case 53:
 YY_RULE_SETUP
-#line 456 "ob_proxy_parser_gbk.l"
+#line 468 "ob_proxy_parser_gbk.l"
 { return USE; }
 	YY_BREAK
 case 54:
 YY_RULE_SETUP
-#line 457 "ob_proxy_parser_gbk.l"
+#line 469 "ob_proxy_parser_gbk.l"
 { return LIMIT; }
 	YY_BREAK
 case 55:
 YY_RULE_SETUP
-#line 458 "ob_proxy_parser_gbk.l"
+#line 470 "ob_proxy_parser_gbk.l"
 { return ALL; }
 	YY_BREAK
 case 56:
 YY_RULE_SETUP
-#line 459 "ob_proxy_parser_gbk.l"
+#line 471 "ob_proxy_parser_gbk.l"
 { return LIKE; }
 	YY_BREAK
 case 57:
 YY_RULE_SETUP
-#line 460 "ob_proxy_parser_gbk.l"
+#line 472 "ob_proxy_parser_gbk.l"
 { return PARTITION; }
 	YY_BREAK
 case 58:
 YY_RULE_SETUP
-#line 461 "ob_proxy_parser_gbk.l"
+#line 473 "ob_proxy_parser_gbk.l"
 { return BINARY; }
 	YY_BREAK
 case 59:
 YY_RULE_SETUP
-#line 462 "ob_proxy_parser_gbk.l"
-{ return GROUP_NAME; }
+#line 474 "ob_proxy_parser_gbk.l"
+{ RETURN_NON_RESERVED_KEYWORD(GROUP_NAME); }
 	YY_BREAK
 /* to make bison easy, do not return these reserved keyword in non strict mode */
 case 60:
 YY_RULE_SETUP
-#line 465 "ob_proxy_parser_gbk.l"
+#line 477 "ob_proxy_parser_gbk.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case 61:
 YY_RULE_SETUP
-#line 466 "ob_proxy_parser_gbk.l"
+#line 478 "ob_proxy_parser_gbk.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case 62:
 YY_RULE_SETUP
-#line 467 "ob_proxy_parser_gbk.l"
+#line 479 "ob_proxy_parser_gbk.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case 63:
 YY_RULE_SETUP
-#line 468 "ob_proxy_parser_gbk.l"
+#line 480 "ob_proxy_parser_gbk.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case 64:
 YY_RULE_SETUP
-#line 469 "ob_proxy_parser_gbk.l"
+#line 481 "ob_proxy_parser_gbk.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
 /* no reserved keyword , don't forget to add these keyword in .y */
 /*refer: https://dev.mysql.com/doc/refman/5.6/en/keywords.html*/
 case 65:
 YY_RULE_SETUP
-#line 473 "ob_proxy_parser_gbk.l"
+#line 485 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(QUICK); }
 	YY_BREAK
 case 66:
 YY_RULE_SETUP
-#line 474 "ob_proxy_parser_gbk.l"
+#line 486 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(COUNT); }
 	YY_BREAK
 case 67:
 YY_RULE_SETUP
-#line 475 "ob_proxy_parser_gbk.l"
+#line 487 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(WARNINGS); }
 	YY_BREAK
 case 68:
 YY_RULE_SETUP
-#line 476 "ob_proxy_parser_gbk.l"
+#line 488 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(ERRORS); }
 	YY_BREAK
 case 69:
 YY_RULE_SETUP
-#line 477 "ob_proxy_parser_gbk.l"
+#line 489 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(TRACE); }
 	YY_BREAK
 case 70:
 YY_RULE_SETUP
-#line 478 "ob_proxy_parser_gbk.l"
+#line 490 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(TRANSACTION); }
 	YY_BREAK
 case 71:
 YY_RULE_SETUP
-#line 480 "ob_proxy_parser_gbk.l"
+#line 492 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(ONLY); }
 	YY_BREAK
 case 72:
 YY_RULE_SETUP
-#line 482 "ob_proxy_parser_gbk.l"
+#line 494 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(CONSISTENT); }
 	YY_BREAK
 case 73:
 YY_RULE_SETUP
-#line 483 "ob_proxy_parser_gbk.l"
+#line 495 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(SNAPSHOT); }
 	YY_BREAK
 case 74:
 YY_RULE_SETUP
-#line 485 "ob_proxy_parser_gbk.l"
+#line 497 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(HELP); }
 	YY_BREAK
 /*set names*/
 case 75:
 /* rule 75 can match eol */
 YY_RULE_SETUP
-#line 489 "ob_proxy_parser_gbk.l"
+#line 501 "ob_proxy_parser_gbk.l"
 { SET_BASIC_STMT(OBPROXY_T_SET_NAMES); return SET_NAMES; }
 	YY_BREAK
 /*set charset*/
 case 76:
 /* rule 76 can match eol */
 YY_RULE_SETUP
-#line 491 "ob_proxy_parser_gbk.l"
+#line 503 "ob_proxy_parser_gbk.l"
 { SET_BASIC_STMT(OBPROXY_T_SET_CHARSET); return SET_CHARSET; }
 	YY_BREAK
 /*set passwd*/
 case 77:
 /* rule 77 can match eol */
 YY_RULE_SETUP
-#line 493 "ob_proxy_parser_gbk.l"
+#line 505 "ob_proxy_parser_gbk.l"
 { SET_BASIC_STMT(OBPROXY_T_SET_PASSWORD); return SET_PASSWORD; }
 	YY_BREAK
 /*set default*/
 case 78:
 /* rule 78 can match eol */
 YY_RULE_SETUP
-#line 495 "ob_proxy_parser_gbk.l"
+#line 507 "ob_proxy_parser_gbk.l"
 { SET_BASIC_STMT(OBPROXY_T_SET_DEFAULT); return SET_DEFAULT; }
 	YY_BREAK
 case 79:
 /* rule 79 can match eol */
 YY_RULE_SETUP
-#line 497 "ob_proxy_parser_gbk.l"
+#line 509 "ob_proxy_parser_gbk.l"
 { SET_BASIC_STMT(OBPROXY_T_SET_OB_READ_CONSISTENCY); return SET_OB_READ_CONSISTENCY; }
 	YY_BREAK
 case 80:
 /* rule 80 can match eol */
 YY_RULE_SETUP
-#line 498 "ob_proxy_parser_gbk.l"
+#line 510 "ob_proxy_parser_gbk.l"
 { SET_BASIC_STMT(OBPROXY_T_SET_TX_READ_ONLY); return SET_TX_READ_ONLY; }
 	YY_BREAK
 /*internal cmd*/
@@ -5752,453 +5823,459 @@ YY_RULE_SETUP
 case 81:
 /* rule 81 can match eol */
 YY_RULE_SETUP
-#line 502 "ob_proxy_parser_gbk.l"
+#line 514 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_NET); return SHOW_PROXYNET; }
 	YY_BREAK
 case 82:
 YY_RULE_SETUP
-#line 503 "ob_proxy_parser_gbk.l"
+#line 515 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(THREAD); }
 	YY_BREAK
 case 83:
 YY_RULE_SETUP
-#line 504 "ob_proxy_parser_gbk.l"
+#line 516 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(CONNECTION); }
 	YY_BREAK
 case 84:
 YY_RULE_SETUP
-#line 506 "ob_proxy_parser_gbk.l"
+#line 518 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(OFFSET); }
 	YY_BREAK
 /*show session*/
 case 85:
 /* rule 85 can match eol */
 YY_RULE_SETUP
-#line 509 "ob_proxy_parser_gbk.l"
+#line 521 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_GLOBAL_SESSION); return SHOW_GLOBALSESSION; }
 	YY_BREAK
 case 86:
 /* rule 86 can match eol */
 YY_RULE_SETUP
-#line 510 "ob_proxy_parser_gbk.l"
+#line 522 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_SESSION); return SHOW_PROXYSESSION; }
 	YY_BREAK
 case 87:
 /* rule 87 can match eol */
 YY_RULE_SETUP
-#line 511 "ob_proxy_parser_gbk.l"
+#line 523 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_PROCESSLIST); return SHOW_PROCESSLIST; }
 	YY_BREAK
 case 88:
 YY_RULE_SETUP
-#line 512 "ob_proxy_parser_gbk.l"
+#line 524 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(ATTRIBUTE); }
 	YY_BREAK
 case 89:
 YY_RULE_SETUP
-#line 513 "ob_proxy_parser_gbk.l"
+#line 525 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(VARIABLES); }
 	YY_BREAK
 case 90:
 YY_RULE_SETUP
-#line 515 "ob_proxy_parser_gbk.l"
+#line 527 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(STAT); }
 	YY_BREAK
 /*show config*/
 case 91:
 /* rule 91 can match eol */
 YY_RULE_SETUP
-#line 518 "ob_proxy_parser_gbk.l"
+#line 530 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_CONFIG); PUSH_STATE(proxy_icmd_state); return SHOW_PROXYCONFIG; }
 	YY_BREAK
 case 92:
 YY_RULE_SETUP
-#line 520 "ob_proxy_parser_gbk.l"
+#line 532 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(DIFF); }
 	YY_BREAK
 case 93:
 YY_RULE_SETUP
-#line 521 "ob_proxy_parser_gbk.l"
+#line 533 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(USER); }
 	YY_BREAK
 case 94:
 YY_RULE_SETUP
-#line 522 "ob_proxy_parser_gbk.l"
+#line 534 "ob_proxy_parser_gbk.l"
 { POP_STATE(); return LIKE; }
 	YY_BREAK
 /*show sm*/
 case 95:
 /* rule 95 can match eol */
 YY_RULE_SETUP
-#line 525 "ob_proxy_parser_gbk.l"
+#line 537 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_SM); return SHOW_PROXYSM; }
 	YY_BREAK
 /*show cluster*/
 case 96:
 /* rule 96 can match eol */
 YY_RULE_SETUP
-#line 528 "ob_proxy_parser_gbk.l"
+#line 540 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_CLUSTER); return SHOW_PROXYCLUSTER; }
 	YY_BREAK
 /*show resource*/
 case 97:
 /* rule 97 can match eol */
 YY_RULE_SETUP
-#line 531 "ob_proxy_parser_gbk.l"
+#line 543 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_RESOURCE); return SHOW_PROXYRESOURCE; }
 	YY_BREAK
 /*show congestion*/
 case 98:
 /* rule 98 can match eol */
 YY_RULE_SETUP
-#line 534 "ob_proxy_parser_gbk.l"
+#line 546 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_CONGESTION); return SHOW_PROXYCONGESTION; }
 	YY_BREAK
 /*show route*/
 case 99:
 /* rule 99 can match eol */
 YY_RULE_SETUP
-#line 537 "ob_proxy_parser_gbk.l"
+#line 549 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_ROUTE); return SHOW_PROXYROUTE; }
 	YY_BREAK
 case 100:
 YY_RULE_SETUP
-#line 539 "ob_proxy_parser_gbk.l"
+#line 551 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(ROUTINE); }
 	YY_BREAK
 /*show vip*/
 case 101:
 /* rule 101 can match eol */
 YY_RULE_SETUP
-#line 542 "ob_proxy_parser_gbk.l"
+#line 554 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_VIP); return SHOW_PROXYVIP; }
 	YY_BREAK
 /*show memory*/
 case 102:
 /* rule 102 can match eol */
 YY_RULE_SETUP
-#line 545 "ob_proxy_parser_gbk.l"
+#line 557 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_MEMORY); return SHOW_PROXYMEMORY; }
 	YY_BREAK
 case 103:
 YY_RULE_SETUP
-#line 546 "ob_proxy_parser_gbk.l"
+#line 558 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(OBJPOOL); }
 	YY_BREAK
 /*show sqlaudit*/
 case 104:
 /* rule 104 can match eol */
 YY_RULE_SETUP
-#line 549 "ob_proxy_parser_gbk.l"
+#line 561 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_SQLAUDIT); return SHOW_SQLAUDIT; }
 	YY_BREAK
 /*show warnlog*/
 case 105:
 /* rule 105 can match eol */
 YY_RULE_SETUP
-#line 552 "ob_proxy_parser_gbk.l"
+#line 564 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_WARNLOG); return SHOW_WARNLOG; }
 	YY_BREAK
 /*show stat*/
 case 106:
 /* rule 106 can match eol */
 YY_RULE_SETUP
-#line 555 "ob_proxy_parser_gbk.l"
+#line 567 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_STAT); return SHOW_PROXYSTAT; }
 	YY_BREAK
 case 107:
 YY_RULE_SETUP
-#line 556 "ob_proxy_parser_gbk.l"
+#line 568 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(REFRESH); }
 	YY_BREAK
 /*show trace*/
 case 108:
 /* rule 108 can match eol */
 YY_RULE_SETUP
-#line 559 "ob_proxy_parser_gbk.l"
+#line 571 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_TRACE); return SHOW_PROXYTRACE; }
 	YY_BREAK
 /*show info*/
 case 109:
 /* rule 109 can match eol */
 YY_RULE_SETUP
-#line 562 "ob_proxy_parser_gbk.l"
+#line 574 "ob_proxy_parser_gbk.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_INFO); return SHOW_PROXYINFO; }
 	YY_BREAK
 case 110:
 YY_RULE_SETUP
-#line 563 "ob_proxy_parser_gbk.l"
+#line 575 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(UPGRADE); }
 	YY_BREAK
 case 111:
 YY_RULE_SETUP
-#line 564 "ob_proxy_parser_gbk.l"
+#line 576 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(IDC); }
 	YY_BREAK
 case 112:
 /* rule 112 can match eol */
 YY_RULE_SETUP
-#line 566 "ob_proxy_parser_gbk.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); PUSH_STATE(show_topology); return SHOW_TOPOLOGY; }
+#line 578 "ob_proxy_parser_gbk.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); PUSH_STATE(show_elastic_id ); return SHOW_ELASTIC_ID; }
 	YY_BREAK
 case 113:
 YY_RULE_SETUP
-#line 567 "ob_proxy_parser_gbk.l"
+#line 579 "ob_proxy_parser_gbk.l"
 { POP_STATE(); PUSH_STATE(INITIAL); return FROM; }
 	YY_BREAK
 case 114:
 YY_RULE_SETUP
-#line 568 "ob_proxy_parser_gbk.l"
+#line 580 "ob_proxy_parser_gbk.l"
 { POP_STATE(); PUSH_STATE(INITIAL); return WHERE; }
 	YY_BREAK
-case YY_STATE_EOF(show_topology):
-#line 569 "ob_proxy_parser_gbk.l"
+case YY_STATE_EOF(show_elastic_id):
+#line 581 "ob_proxy_parser_gbk.l"
 { return END_P; }
 	YY_BREAK
 case 115:
 /* rule 115 can match eol */
 YY_RULE_SETUP
-#line 570 "ob_proxy_parser_gbk.l"
+#line 582 "ob_proxy_parser_gbk.l"
 { }
 	YY_BREAK
 case 116:
 YY_RULE_SETUP
-#line 571 "ob_proxy_parser_gbk.l"
+#line 583 "ob_proxy_parser_gbk.l"
 { POP_STATE(); PUSH_STATE(INITIAL); return yytext[0]; }
 	YY_BREAK
 case 117:
 YY_RULE_SETUP
-#line 572 "ob_proxy_parser_gbk.l"
+#line 584 "ob_proxy_parser_gbk.l"
 { return ERROR; }
 	YY_BREAK
 case 118:
 /* rule 118 can match eol */
 YY_RULE_SETUP
-#line 574 "ob_proxy_parser_gbk.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_DB_VERSION; }
+#line 586 "ob_proxy_parser_gbk.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_TOPOLOGY; }
 	YY_BREAK
 case 119:
 /* rule 119 can match eol */
 YY_RULE_SETUP
-#line 575 "ob_proxy_parser_gbk.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_DATABASES; }
+#line 588 "ob_proxy_parser_gbk.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_DB_VERSION; }
 	YY_BREAK
 case 120:
 /* rule 120 can match eol */
 YY_RULE_SETUP
-#line 577 "ob_proxy_parser_gbk.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); PUSH_STATE(show_tables); return SHOW_TABLES; }
+#line 589 "ob_proxy_parser_gbk.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_DATABASES; }
 	YY_BREAK
 case 121:
 /* rule 121 can match eol */
 YY_RULE_SETUP
-#line 578 "ob_proxy_parser_gbk.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); PUSH_STATE(show_tables); return SHOW_FULL_TABLES; }
+#line 591 "ob_proxy_parser_gbk.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); PUSH_STATE(show_tables); return SHOW_TABLES; }
 	YY_BREAK
 case 122:
+/* rule 122 can match eol */
 YY_RULE_SETUP
-#line 580 "ob_proxy_parser_gbk.l"
-{ POP_STATE(); PUSH_STATE(INITIAL); return FROM; }
+#line 592 "ob_proxy_parser_gbk.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); PUSH_STATE(show_tables); return SHOW_FULL_TABLES; }
 	YY_BREAK
 case 123:
 YY_RULE_SETUP
-#line 581 "ob_proxy_parser_gbk.l"
+#line 594 "ob_proxy_parser_gbk.l"
+{ POP_STATE(); PUSH_STATE(INITIAL); return FROM; }
+	YY_BREAK
+case 124:
+YY_RULE_SETUP
+#line 595 "ob_proxy_parser_gbk.l"
 { POP_STATE(); PUSH_STATE(INITIAL); return LIKE; }
 	YY_BREAK
 case YY_STATE_EOF(show_tables):
-#line 582 "ob_proxy_parser_gbk.l"
+#line 596 "ob_proxy_parser_gbk.l"
 { return END_P; }
 	YY_BREAK
-case 124:
-/* rule 124 can match eol */
-YY_RULE_SETUP
-#line 583 "ob_proxy_parser_gbk.l"
-{ }
-	YY_BREAK
 case 125:
+/* rule 125 can match eol */
 YY_RULE_SETUP
-#line 584 "ob_proxy_parser_gbk.l"
-{ POP_STATE(); PUSH_STATE(INITIAL); return yytext[0]; }
+#line 597 "ob_proxy_parser_gbk.l"
+{ }
 	YY_BREAK
 case 126:
 YY_RULE_SETUP
-#line 585 "ob_proxy_parser_gbk.l"
-{ return ERROR; }
+#line 598 "ob_proxy_parser_gbk.l"
+{ POP_STATE(); PUSH_STATE(INITIAL); return yytext[0]; }
 	YY_BREAK
 case 127:
-/* rule 127 can match eol */
 YY_RULE_SETUP
-#line 586 "ob_proxy_parser_gbk.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_COLUMNS; }
+#line 599 "ob_proxy_parser_gbk.l"
+{ return ERROR; }
 	YY_BREAK
 case 128:
 /* rule 128 can match eol */
 YY_RULE_SETUP
-#line 587 "ob_proxy_parser_gbk.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_INDEX; }
+#line 600 "ob_proxy_parser_gbk.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_COLUMNS; }
 	YY_BREAK
 case 129:
 /* rule 129 can match eol */
 YY_RULE_SETUP
-#line 589 "ob_proxy_parser_gbk.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_CREATE_TABLE; }
+#line 601 "ob_proxy_parser_gbk.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_INDEX; }
 	YY_BREAK
 case 130:
 /* rule 130 can match eol */
 YY_RULE_SETUP
-#line 590 "ob_proxy_parser_gbk.l"
-{ SET_DML_STMT(OBPROXY_T_SELECT); return SELECT_DATABASE; }
+#line 603 "ob_proxy_parser_gbk.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_CREATE_TABLE; }
 	YY_BREAK
 case 131:
 /* rule 131 can match eol */
 YY_RULE_SETUP
-#line 591 "ob_proxy_parser_gbk.l"
-{ SET_DML_STMT(OBPROXY_T_SELECT_PROXY_VERSION); return SELECT_PROXY_VERSION; }
+#line 604 "ob_proxy_parser_gbk.l"
+{ SET_DML_STMT(OBPROXY_T_SELECT); return SELECT_DATABASE; }
 	YY_BREAK
-/*alter config*/
 case 132:
 /* rule 132 can match eol */
 YY_RULE_SETUP
-#line 594 "ob_proxy_parser_gbk.l"
-{ SET_ICMD_STMT(OBPROXY_T_ICMD_ALTER_CONFIG); return ALTER_PROXYCONFIG; }
+#line 605 "ob_proxy_parser_gbk.l"
+{ SET_DML_STMT(OBPROXY_T_SELECT_PROXY_VERSION); return SELECT_PROXY_VERSION; }
 	YY_BREAK
-/*alter resource*/
+/*alter config*/
 case 133:
 /* rule 133 can match eol */
 YY_RULE_SETUP
-#line 597 "ob_proxy_parser_gbk.l"
-{ SET_ICMD_STMT(OBPROXY_T_ICMD_ALTER_RESOURCE); return ALTER_PROXYRESOURCE; }
+#line 608 "ob_proxy_parser_gbk.l"
+{ SET_ICMD_STMT(OBPROXY_T_ICMD_ALTER_CONFIG); return ALTER_PROXYCONFIG; }
 	YY_BREAK
-/*ping proxy*/
+/*alter resource*/
 case 134:
 /* rule 134 can match eol */
 YY_RULE_SETUP
-#line 600 "ob_proxy_parser_gbk.l"
-{ SET_ICMD_STMT(OBPROXY_T_PING_PROXY); return PING_PROXY; }
+#line 611 "ob_proxy_parser_gbk.l"
+{ SET_ICMD_STMT(OBPROXY_T_ICMD_ALTER_RESOURCE); return ALTER_PROXYRESOURCE; }
 	YY_BREAK
-/*kill*/
+/*ping proxy*/
 case 135:
 /* rule 135 can match eol */
 YY_RULE_SETUP
-#line 603 "ob_proxy_parser_gbk.l"
-{ SET_ICMD_STMT(OBPROXY_T_ICMD_KILL_SESSION); return KILL_PROXYSESSION; }
+#line 614 "ob_proxy_parser_gbk.l"
+{ SET_ICMD_STMT(OBPROXY_T_PING_PROXY); return PING_PROXY; }
 	YY_BREAK
+/*kill*/
 case 136:
 /* rule 136 can match eol */
 YY_RULE_SETUP
-#line 604 "ob_proxy_parser_gbk.l"
-{ SET_ICMD_STMT(OBPROXY_T_ICMD_KILL_GLOBAL_SESSION); return KILL_GLOBALSESSION; }
+#line 617 "ob_proxy_parser_gbk.l"
+{ SET_ICMD_STMT(OBPROXY_T_ICMD_KILL_SESSION); return KILL_PROXYSESSION; }
 	YY_BREAK
 case 137:
+/* rule 137 can match eol */
 YY_RULE_SETUP
-#line 605 "ob_proxy_parser_gbk.l"
-{ SET_ICMD_STMT(OBPROXY_T_ICMD_KILL_MYSQL); return KILL; }
+#line 618 "ob_proxy_parser_gbk.l"
+{ SET_ICMD_STMT(OBPROXY_T_ICMD_KILL_GLOBAL_SESSION); return KILL_GLOBALSESSION; }
 	YY_BREAK
 case 138:
 YY_RULE_SETUP
-#line 606 "ob_proxy_parser_gbk.l"
-{ RETURN_NON_RESERVED_KEYWORD(QUERY); }
+#line 619 "ob_proxy_parser_gbk.l"
+{ SET_ICMD_STMT(OBPROXY_T_ICMD_KILL_MYSQL); return KILL; }
 	YY_BREAK
-/* obproxy_route_addr */
 case 139:
-/* rule 139 can match eol */
 YY_RULE_SETUP
-#line 609 "ob_proxy_parser_gbk.l"
-{ return SELECT_OBPROXY_ROUTE_ADDR; }
+#line 620 "ob_proxy_parser_gbk.l"
+{ RETURN_NON_RESERVED_KEYWORD(QUERY); }
 	YY_BREAK
+/* obproxy_route_addr */
 case 140:
 /* rule 140 can match eol */
 YY_RULE_SETUP
-#line 610 "ob_proxy_parser_gbk.l"
+#line 623 "ob_proxy_parser_gbk.l"
+{ return SELECT_OBPROXY_ROUTE_ADDR; }
+	YY_BREAK
+case 141:
+/* rule 141 can match eol */
+YY_RULE_SETUP
+#line 624 "ob_proxy_parser_gbk.l"
 { return SET_OBPROXY_ROUTE_ADDR; }
 	YY_BREAK
 /* identifer */
-case 141:
+case 142:
 YY_RULE_SETUP
-#line 613 "ob_proxy_parser_gbk.l"
+#line 627 "ob_proxy_parser_gbk.l"
 { SET_FOUND_ROWS(); RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 142:
+case 143:
 YY_RULE_SETUP
-#line 614 "ob_proxy_parser_gbk.l"
+#line 628 "ob_proxy_parser_gbk.l"
 { SET_ROW_COUNT(); RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 143:
+case 144:
 YY_RULE_SETUP
-#line 615 "ob_proxy_parser_gbk.l"
+#line 629 "ob_proxy_parser_gbk.l"
 { SET_LAST_INSERT_ID(); RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 144:
+case 145:
 YY_RULE_SETUP
-#line 616 "ob_proxy_parser_gbk.l"
+#line 630 "ob_proxy_parser_gbk.l"
 { return ','; }
 	YY_BREAK
-case 145:
+case 146:
 YY_RULE_SETUP
-#line 617 "ob_proxy_parser_gbk.l"
+#line 631 "ob_proxy_parser_gbk.l"
 { RETURN_INT_NUM(); }
 	YY_BREAK
-case 146:
+case 147:
 YY_RULE_SETUP
-#line 618 "ob_proxy_parser_gbk.l"
+#line 632 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 147:
+case 148:
 YY_RULE_SETUP
-#line 619 "ob_proxy_parser_gbk.l"
+#line 633 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD_WITH_QUOTE(NAME_OB, OBPROXY_QUOTE_T_SINGLE); }
 	YY_BREAK
-case 148:
+case 149:
 YY_RULE_SETUP
-#line 620 "ob_proxy_parser_gbk.l"
+#line 634 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD_WITH_QUOTE(NAME_OB, OBPROXY_QUOTE_T_DOUBLE); }
 	YY_BREAK
-case 149:
+case 150:
 YY_RULE_SETUP
-#line 621 "ob_proxy_parser_gbk.l"
+#line 635 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD_WITH_QUOTE(NAME_OB, OBPROXY_QUOTE_T_BACK); }
 	YY_BREAK
-case 150:
+case 151:
 YY_RULE_SETUP
-#line 622 "ob_proxy_parser_gbk.l"
+#line 636 "ob_proxy_parser_gbk.l"
 { RETURN_NUMBER_VAL(); }
 	YY_BREAK
-case 151:
+case 152:
 YY_RULE_SETUP
-#line 623 "ob_proxy_parser_gbk.l"
+#line 637 "ob_proxy_parser_gbk.l"
 { return PLACE_HOLDER; }
 	YY_BREAK
-case 152:
+case 153:
 YY_RULE_SETUP
-#line 624 "ob_proxy_parser_gbk.l"
+#line 638 "ob_proxy_parser_gbk.l"
 { return yytext[0]; }
 	YY_BREAK
-case 153:
+case 154:
 YY_RULE_SETUP
-#line 625 "ob_proxy_parser_gbk.l"
+#line 639 "ob_proxy_parser_gbk.l"
 { RETURN_WITH_CALL_CHECK(yytext[0]); }
 	YY_BREAK
-case 154:
+case 155:
 YY_RULE_SETUP
-#line 626 "ob_proxy_parser_gbk.l"
+#line 640 "ob_proxy_parser_gbk.l"
 { RETURN_WITH_CALL_CHECK('('); }
 	YY_BREAK
-case 155:
+case 156:
 YY_RULE_SETUP
-#line 627 "ob_proxy_parser_gbk.l"
+#line 641 "ob_proxy_parser_gbk.l"
 { RETURN_WITH_CALL_CHECK(')'); }
 	YY_BREAK
-case 156:
-/* rule 156 can match eol */
+case 157:
+/* rule 157 can match eol */
 YY_RULE_SETUP
-#line 628 "ob_proxy_parser_gbk.l"
+#line 642 "ob_proxy_parser_gbk.l"
 { }
 	YY_BREAK
 /* hint option */
-case 157:
-/* rule 157 can match eol */
+case 158:
+/* rule 158 can match eol */
 YY_RULE_SETUP
-#line 631 "ob_proxy_parser_gbk.l"
+#line 645 "ob_proxy_parser_gbk.l"
 {
   PUSH_STATE(in_expr);
   PUSH_STATE(hint);
@@ -6206,20 +6283,20 @@ YY_RULE_SETUP
   return SELECT_HINT_BEGIN;
 }
 	YY_BREAK
-case 158:
-/* rule 158 can match eol */
+case 159:
+/* rule 159 can match eol */
 YY_RULE_SETUP
-#line 637 "ob_proxy_parser_gbk.l"
+#line 651 "ob_proxy_parser_gbk.l"
 {
   PUSH_STATE(hint);
   SET_BASIC_STMT(OBPROXY_T_UPDATE);
   return UPDATE_HINT_BEGIN;
 }
 	YY_BREAK
-case 159:
-/* rule 159 can match eol */
+case 160:
+/* rule 160 can match eol */
 YY_RULE_SETUP
-#line 642 "ob_proxy_parser_gbk.l"
+#line 656 "ob_proxy_parser_gbk.l"
 {
   PUSH_STATE(in_expr);
   PUSH_STATE(hint);
@@ -6227,95 +6304,125 @@ YY_RULE_SETUP
   return DELETE_HINT_BEGIN;
 }
 	YY_BREAK
-case 160:
-/* rule 160 can match eol */
+case 161:
+/* rule 161 can match eol */
 YY_RULE_SETUP
-#line 648 "ob_proxy_parser_gbk.l"
+#line 662 "ob_proxy_parser_gbk.l"
 {
   PUSH_STATE(hint);
   SET_BASIC_STMT(OBPROXY_T_INSERT);
   return INSERT_HINT_BEGIN;
 }
 	YY_BREAK
-case 161:
-/* rule 161 can match eol */
+case 162:
+/* rule 162 can match eol */
 YY_RULE_SETUP
-#line 653 "ob_proxy_parser_gbk.l"
+#line 667 "ob_proxy_parser_gbk.l"
 {
   PUSH_STATE(hint);
   SET_BASIC_STMT(OBPROXY_T_REPLACE);
   return REPLACE_HINT_BEGIN;
 }
 	YY_BREAK
-case 162:
-/* rule 162 can match eol */
+case 163:
+/* rule 163 can match eol */
 YY_RULE_SETUP
-#line 658 "ob_proxy_parser_gbk.l"
+#line 672 "ob_proxy_parser_gbk.l"
 {
   PUSH_STATE(hint);
   SET_BASIC_STMT(OBPROXY_T_MERGE);
   return MERGE_HINT_BEGIN;
 }
 	YY_BREAK
-case 163:
-/* rule 163 can match eol */
+case 164:
+/* rule 164 can match eol */
 YY_RULE_SETUP
-#line 664 "ob_proxy_parser_gbk.l"
-{ return AUTOCOMMIT_0; }
+#line 678 "ob_proxy_parser_gbk.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW_MASTER_STATUS); return SHOW_MASTER_STATUS; }
 	YY_BREAK
-case 164:
+case 165:
+/* rule 165 can match eol */
+YY_RULE_SETUP
+#line 679 "ob_proxy_parser_gbk.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW_BINARY_LOGS); return SHOW_BINARY_LOGS; }
+	YY_BREAK
+case 166:
+/* rule 166 can match eol */
+YY_RULE_SETUP
+#line 680 "ob_proxy_parser_gbk.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW_BINLOG_EVENTS); return SHOW_BINLOG_EVENTS; }
+	YY_BREAK
+case 167:
+/* rule 167 can match eol */
 YY_RULE_SETUP
-#line 665 "ob_proxy_parser_gbk.l"
+#line 681 "ob_proxy_parser_gbk.l"
+{ SET_BASIC_STMT(OBPROXY_T_PURGE_BINARY_LOGS); return PURGE_BINARY_LOGS; }
+	YY_BREAK
+case 168:
+/* rule 168 can match eol */
+YY_RULE_SETUP
+#line 682 "ob_proxy_parser_gbk.l"
+{ SET_BASIC_STMT(OBPROXY_T_RESET_MASTER); return RESET_MASTER; }
+	YY_BREAK
+case 169:
+/* rule 169 can match eol */
+YY_RULE_SETUP
+#line 683 "ob_proxy_parser_gbk.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW_BINLOG_SERVER_FOR_TENANT); return SHOW_BINLOG_SERVER_FOR_TENANT; }
+	YY_BREAK
+case 170:
+YY_RULE_SETUP
+#line 685 "ob_proxy_parser_gbk.l"
 { return GLOBAL; }
 	YY_BREAK
-case 165:
+case 171:
 YY_RULE_SETUP
-#line 666 "ob_proxy_parser_gbk.l"
+#line 686 "ob_proxy_parser_gbk.l"
 { return SESSION; }
 	YY_BREAK
-case 166:
+case 172:
 YY_RULE_SETUP
-#line 667 "ob_proxy_parser_gbk.l"
+#line 687 "ob_proxy_parser_gbk.l"
 { RETURN_INT_NUM(); }
 	YY_BREAK
-case 167:
+case 173:
 YY_RULE_SETUP
-#line 668 "ob_proxy_parser_gbk.l"
+#line 688 "ob_proxy_parser_gbk.l"
 { return ','; }
 	YY_BREAK
-case 168:
+case 174:
 YY_RULE_SETUP
-#line 669 "ob_proxy_parser_gbk.l"
+#line 689 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 169:
+case 175:
 YY_RULE_SETUP
-#line 670 "ob_proxy_parser_gbk.l"
+#line 690 "ob_proxy_parser_gbk.l"
 { RETURN_NUMBER_VAL(); }
 	YY_BREAK
-case 170:
-/* rule 170 can match eol */
+case 176:
+/* rule 176 can match eol */
 YY_RULE_SETUP
-#line 671 "ob_proxy_parser_gbk.l"
+#line 691 "ob_proxy_parser_gbk.l"
 { }
 	YY_BREAK
-case 171:
+case 177:
 YY_RULE_SETUP
-#line 672 "ob_proxy_parser_gbk.l"
+#line 692 "ob_proxy_parser_gbk.l"
 { return yytext[0]; }
 	YY_BREAK
 case YY_STATE_EOF(set_expr):
-#line 673 "ob_proxy_parser_gbk.l"
+#line 693 "ob_proxy_parser_gbk.l"
 { return END_P; }
 	YY_BREAK
-case 172:
+case 178:
 YY_RULE_SETUP
-#line 674 "ob_proxy_parser_gbk.l"
+#line 694 "ob_proxy_parser_gbk.l"
 { POP_STATE(); PUSH_STATE(INITIAL); return yytext[0]; }
 	YY_BREAK
-case 173:
+case 179:
 YY_RULE_SETUP
-#line 676 "ob_proxy_parser_gbk.l"
+#line 696 "ob_proxy_parser_gbk.l"
 {
   PUSH_STATE(sq);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -6326,9 +6433,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 174:
+case 180:
 YY_RULE_SETUP
-#line 686 "ob_proxy_parser_gbk.l"
+#line 706 "ob_proxy_parser_gbk.l"
 {
   PUSH_STATE(dq);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -6339,9 +6446,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 175:
+case 181:
 YY_RULE_SETUP
-#line 696 "ob_proxy_parser_gbk.l"
+#line 716 "ob_proxy_parser_gbk.l"
 {
   PUSH_STATE(bt);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -6352,90 +6459,90 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 176:
+case 182:
 YY_RULE_SETUP
-#line 705 "ob_proxy_parser_gbk.l"
+#line 725 "ob_proxy_parser_gbk.l"
 { return ERROR; }
 	YY_BREAK
-case 177:
+case 183:
 YY_RULE_SETUP
-#line 707 "ob_proxy_parser_gbk.l"
+#line 727 "ob_proxy_parser_gbk.l"
 { POP_STATE(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 178:
+case 184:
 YY_RULE_SETUP
-#line 708 "ob_proxy_parser_gbk.l"
+#line 728 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 179:
+case 185:
 YY_RULE_SETUP
-#line 710 "ob_proxy_parser_gbk.l"
+#line 730 "ob_proxy_parser_gbk.l"
 { return '('; }
 	YY_BREAK
-case 180:
+case 186:
 YY_RULE_SETUP
-#line 711 "ob_proxy_parser_gbk.l"
+#line 731 "ob_proxy_parser_gbk.l"
 { return ')'; }
 	YY_BREAK
-case 181:
+case 187:
 YY_RULE_SETUP
-#line 712 "ob_proxy_parser_gbk.l"
+#line 732 "ob_proxy_parser_gbk.l"
 { return QUERY_TIMEOUT; }
 	YY_BREAK
-case 182:
+case 188:
 YY_RULE_SETUP
-#line 713 "ob_proxy_parser_gbk.l"
+#line 733 "ob_proxy_parser_gbk.l"
 { RETURN_INT_NUM(); }
 	YY_BREAK
-case 183:
+case 189:
 YY_RULE_SETUP
-#line 714 "ob_proxy_parser_gbk.l"
+#line 734 "ob_proxy_parser_gbk.l"
 { return READ_CONSISTENCY; }
 	YY_BREAK
-case 184:
+case 190:
 YY_RULE_SETUP
-#line 715 "ob_proxy_parser_gbk.l"
+#line 735 "ob_proxy_parser_gbk.l"
 { return WEAK; }
 	YY_BREAK
-case 185:
+case 191:
 YY_RULE_SETUP
-#line 716 "ob_proxy_parser_gbk.l"
+#line 736 "ob_proxy_parser_gbk.l"
 { return STRONG; }
 	YY_BREAK
-case 186:
+case 192:
 YY_RULE_SETUP
-#line 717 "ob_proxy_parser_gbk.l"
+#line 737 "ob_proxy_parser_gbk.l"
 { return FROZEN; }
 	YY_BREAK
-case 187:
+case 193:
 YY_RULE_SETUP
-#line 718 "ob_proxy_parser_gbk.l"
+#line 738 "ob_proxy_parser_gbk.l"
 { return INDEX; }
 	YY_BREAK
-case 188:
+case 194:
 YY_RULE_SETUP
-#line 719 "ob_proxy_parser_gbk.l"
+#line 739 "ob_proxy_parser_gbk.l"
 { return yytext[0]; }
 	YY_BREAK
-case 189:
+case 195:
 YY_RULE_SETUP
-#line 720 "ob_proxy_parser_gbk.l"
+#line 740 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 190:
+case 196:
 YY_RULE_SETUP
-#line 721 "ob_proxy_parser_gbk.l"
+#line 741 "ob_proxy_parser_gbk.l"
 { POP_STATE(); return HINT_END; }
 	YY_BREAK
-case 191:
+case 197:
 YY_RULE_SETUP
-#line 722 "ob_proxy_parser_gbk.l"
+#line 742 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
 /* comment */
-case 192:
+case 198:
 YY_RULE_SETUP
-#line 725 "ob_proxy_parser_gbk.l"
+#line 745 "ob_proxy_parser_gbk.l"
 {
   PUSH_STATE(in_c_comment);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -6450,25 +6557,25 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 193:
+case 199:
 YY_RULE_SETUP
-#line 739 "ob_proxy_parser_gbk.l"
+#line 759 "ob_proxy_parser_gbk.l"
 { POP_STATE(); }
 	YY_BREAK
-case 194:
-/* rule 194 can match eol */
+case 200:
+/* rule 200 can match eol */
 YY_RULE_SETUP
-#line 740 "ob_proxy_parser_gbk.l"
+#line 760 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 195:
+case 201:
 YY_RULE_SETUP
-#line 741 "ob_proxy_parser_gbk.l"
+#line 761 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 196:
+case 202:
 YY_RULE_SETUP
-#line 743 "ob_proxy_parser_gbk.l"
+#line 763 "ob_proxy_parser_gbk.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -6479,15 +6586,15 @@ YY_RULE_SETUP
   return COMMENT_END;
 }
 	YY_BREAK
-case 197:
+case 203:
 YY_RULE_SETUP
-#line 753 "ob_proxy_parser_gbk.l"
+#line 773 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_old_comment_expr); }
 	YY_BREAK
-case 198:
-/* rule 198 can match eol */
+case 204:
+/* rule 204 can match eol */
 YY_RULE_SETUP
-#line 754 "ob_proxy_parser_gbk.l"
+#line 774 "ob_proxy_parser_gbk.l"
 {
   PUSH_STATE(in_old_comment_expr);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -6497,10 +6604,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 199:
-/* rule 199 can match eol */
+case 205:
+/* rule 205 can match eol */
 YY_RULE_SETUP
-#line 763 "ob_proxy_parser_gbk.l"
+#line 783 "ob_proxy_parser_gbk.l"
 {
   PUSH_STATE(in_old_comment_expr);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -6512,9 +6619,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 200:
+case 206:
 YY_RULE_SETUP
-#line 774 "ob_proxy_parser_gbk.l"
+#line 794 "ob_proxy_parser_gbk.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -6523,9 +6630,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 201:
+case 207:
 YY_RULE_SETUP
-#line 782 "ob_proxy_parser_gbk.l"
+#line 802 "ob_proxy_parser_gbk.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -6536,29 +6643,29 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 202:
+case 208:
 YY_RULE_SETUP
-#line 792 "ob_proxy_parser_gbk.l"
+#line 812 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 203:
+case 209:
 YY_RULE_SETUP
-#line 793 "ob_proxy_parser_gbk.l"
+#line 813 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD_WITH_QUOTE(NAME_OB, OBPROXY_QUOTE_T_SINGLE); }
 	YY_BREAK
-case 204:
+case 210:
 YY_RULE_SETUP
-#line 794 "ob_proxy_parser_gbk.l"
+#line 814 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD_WITH_QUOTE(NAME_OB, OBPROXY_QUOTE_T_DOUBLE); }
 	YY_BREAK
-case 205:
+case 211:
 YY_RULE_SETUP
-#line 795 "ob_proxy_parser_gbk.l"
+#line 815 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD_WITH_QUOTE(NAME_OB, OBPROXY_QUOTE_T_BACK); }
 	YY_BREAK
-case 206:
+case 212:
 YY_RULE_SETUP
-#line 796 "ob_proxy_parser_gbk.l"
+#line 816 "ob_proxy_parser_gbk.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -6570,160 +6677,171 @@ YY_RULE_SETUP
   return COMMENT_END;
 }
 	YY_BREAK
-case 207:
+case 213:
 YY_RULE_SETUP
-#line 806 "ob_proxy_parser_gbk.l"
+#line 826 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 208:
+case 214:
 YY_RULE_SETUP
-#line 808 "ob_proxy_parser_gbk.l"
+#line 828 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(ODP_COMMENT); }
 	YY_BREAK
-case 209:
-/* rule 209 can match eol */
+case 215:
+/* rule 215 can match eol */
 YY_RULE_SETUP
-#line 809 "ob_proxy_parser_gbk.l"
+#line 829 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(GROUP_ID); }
 	YY_BREAK
-case 210:
-/* rule 210 can match eol */
+case 216:
+/* rule 216 can match eol */
 YY_RULE_SETUP
-#line 810 "ob_proxy_parser_gbk.l"
+#line 830 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(TABLE_ID); }
 	YY_BREAK
-case 211:
-/* rule 211 can match eol */
+case 217:
+/* rule 217 can match eol */
 YY_RULE_SETUP
-#line 811 "ob_proxy_parser_gbk.l"
+#line 831 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(TABLE_NAME); }
 	YY_BREAK
-case 212:
-/* rule 212 can match eol */
+case 218:
+/* rule 218 can match eol */
 YY_RULE_SETUP
-#line 812 "ob_proxy_parser_gbk.l"
+#line 832 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(ELASTIC_ID); }
 	YY_BREAK
-case 213:
-/* rule 213 can match eol */
+case 219:
+/* rule 219 can match eol */
 YY_RULE_SETUP
-#line 813 "ob_proxy_parser_gbk.l"
+#line 833 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(TESTLOAD); }
 	YY_BREAK
-case 214:
-/* rule 214 can match eol */
+case 220:
+/* rule 220 can match eol */
 YY_RULE_SETUP
-#line 814 "ob_proxy_parser_gbk.l"
+#line 834 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(DISASTER_STATUS); }
 	YY_BREAK
-case 215:
-/* rule 215 can match eol */
+case 221:
+/* rule 221 can match eol */
 YY_RULE_SETUP
-#line 815 "ob_proxy_parser_gbk.l"
+#line 835 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(TNT_ID); }
 	YY_BREAK
-case 216:
-/* rule 216 can match eol */
+case 222:
+/* rule 222 can match eol */
 YY_RULE_SETUP
-#line 816 "ob_proxy_parser_gbk.l"
+#line 836 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(TRACE_ID); }
 	YY_BREAK
-case 217:
-/* rule 217 can match eol */
+case 223:
+/* rule 223 can match eol */
 YY_RULE_SETUP
-#line 817 "ob_proxy_parser_gbk.l"
+#line 837 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT_NAME_OB_DOT(NAME_OB_DOT); }
 	YY_BREAK
-case 218:
-/* rule 218 can match eol */
+case 224:
+/* rule 224 can match eol */
 YY_RULE_SETUP
-#line 818 "ob_proxy_parser_gbk.l"
+#line 838 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(RPC_ID); }
 	YY_BREAK
-case 219:
+case 225:
+/* rule 225 can match eol */
 YY_RULE_SETUP
-#line 820 "ob_proxy_parser_gbk.l"
+#line 839 "ob_proxy_parser_gbk.l"
+{ PUSH_STATE(in_odp_comment_expr); return TARGET_DB_SERVER; }
+	YY_BREAK
+case 226:
+YY_RULE_SETUP
+#line 841 "ob_proxy_parser_gbk.l"
 { return GROUP_ID; }
 	YY_BREAK
-case 220:
+case 227:
 YY_RULE_SETUP
-#line 821 "ob_proxy_parser_gbk.l"
+#line 842 "ob_proxy_parser_gbk.l"
 { return TABLE_ID; }
 	YY_BREAK
-case 221:
+case 228:
 YY_RULE_SETUP
-#line 822 "ob_proxy_parser_gbk.l"
+#line 843 "ob_proxy_parser_gbk.l"
 { return TABLE_NAME; }
 	YY_BREAK
-case 222:
+case 229:
 YY_RULE_SETUP
-#line 823 "ob_proxy_parser_gbk.l"
+#line 844 "ob_proxy_parser_gbk.l"
 { return ELASTIC_ID; }
 	YY_BREAK
-case 223:
+case 230:
 YY_RULE_SETUP
-#line 824 "ob_proxy_parser_gbk.l"
+#line 845 "ob_proxy_parser_gbk.l"
 { return TESTLOAD; }
 	YY_BREAK
-case 224:
+case 231:
 YY_RULE_SETUP
-#line 825 "ob_proxy_parser_gbk.l"
+#line 846 "ob_proxy_parser_gbk.l"
 { return DISASTER_STATUS; }
 	YY_BREAK
-case 225:
+case 232:
 YY_RULE_SETUP
-#line 826 "ob_proxy_parser_gbk.l"
+#line 847 "ob_proxy_parser_gbk.l"
 { return TNT_ID; }
 	YY_BREAK
-case 226:
+case 233:
 YY_RULE_SETUP
-#line 827 "ob_proxy_parser_gbk.l"
+#line 848 "ob_proxy_parser_gbk.l"
 { return TRACE_ID; }
 	YY_BREAK
-case 227:
+case 234:
 YY_RULE_SETUP
-#line 828 "ob_proxy_parser_gbk.l"
+#line 849 "ob_proxy_parser_gbk.l"
 { return RPC_ID; }
 	YY_BREAK
-case 228:
+case 235:
 YY_RULE_SETUP
-#line 829 "ob_proxy_parser_gbk.l"
+#line 850 "ob_proxy_parser_gbk.l"
+{ return TARGET_DB_SERVER; }
+	YY_BREAK
+case 236:
+YY_RULE_SETUP
+#line 851 "ob_proxy_parser_gbk.l"
 { ENTER_QUOTE_STATE(comment_sq); }
 	YY_BREAK
-case 229:
+case 237:
 YY_RULE_SETUP
-#line 830 "ob_proxy_parser_gbk.l"
+#line 852 "ob_proxy_parser_gbk.l"
 { return ','; }
 	YY_BREAK
-case 230:
+case 238:
 YY_RULE_SETUP
-#line 831 "ob_proxy_parser_gbk.l"
+#line 853 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 231:
+case 239:
 YY_RULE_SETUP
-#line 832 "ob_proxy_parser_gbk.l"
+#line 854 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_odp_comment_value_expr); return yytext[0]; }
 	YY_BREAK
-case 232:
+case 240:
 YY_RULE_SETUP
-#line 833 "ob_proxy_parser_gbk.l"
+#line 855 "ob_proxy_parser_gbk.l"
 { return yytext[0]; }
 	YY_BREAK
-case 233:
-/* rule 233 can match eol */
+case 241:
+/* rule 241 can match eol */
 YY_RULE_SETUP
-#line 834 "ob_proxy_parser_gbk.l"
+#line 856 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 234:
+case 242:
 YY_RULE_SETUP
-#line 835 "ob_proxy_parser_gbk.l"
+#line 857 "ob_proxy_parser_gbk.l"
 { return ERROR; }
 	YY_BREAK
-case 235:
+case 243:
 YY_RULE_SETUP
-#line 836 "ob_proxy_parser_gbk.l"
+#line 858 "ob_proxy_parser_gbk.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -6735,22 +6853,22 @@ YY_RULE_SETUP
   return COMMENT_END;
 }
 	YY_BREAK
-case 236:
+case 244:
 YY_RULE_SETUP
-#line 847 "ob_proxy_parser_gbk.l"
+#line 869 "ob_proxy_parser_gbk.l"
 { ENTER_QUOTE_STATE(comment_sq); }
 	YY_BREAK
-case 237:
+case 245:
 YY_RULE_SETUP
-#line 848 "ob_proxy_parser_gbk.l"
+#line 870 "ob_proxy_parser_gbk.l"
 {
   POP_STATE();
   return ',';
 }
 	YY_BREAK
-case 238:
+case 246:
 YY_RULE_SETUP
-#line 852 "ob_proxy_parser_gbk.l"
+#line 874 "ob_proxy_parser_gbk.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -6763,15 +6881,15 @@ YY_RULE_SETUP
   return COMMENT_END;
 }
 	YY_BREAK
-case 239:
-/* rule 239 can match eol */
+case 247:
+/* rule 247 can match eol */
 YY_RULE_SETUP
-#line 863 "ob_proxy_parser_gbk.l"
+#line 885 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 240:
+case 248:
 YY_RULE_SETUP
-#line 864 "ob_proxy_parser_gbk.l"
+#line 886 "ob_proxy_parser_gbk.l"
 {
   do {
     PUSH_STATE(in_odp_comment_value_expr_calc)
@@ -6784,10 +6902,10 @@ YY_RULE_SETUP
   } while (0);
 }
 	YY_BREAK
-case 241:
-/* rule 241 can match eol */
+case 249:
+/* rule 249 can match eol */
 YY_RULE_SETUP
-#line 876 "ob_proxy_parser_gbk.l"
+#line 898 "ob_proxy_parser_gbk.l"
 {
   POP_STATE();
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -6800,9 +6918,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 242:
+case 250:
 YY_RULE_SETUP
-#line 888 "ob_proxy_parser_gbk.l"
+#line 910 "ob_proxy_parser_gbk.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -6810,90 +6928,95 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 243:
+case 251:
 YY_RULE_SETUP
-#line 895 "ob_proxy_parser_gbk.l"
+#line 917 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_dbp_comment_expr); RETURN_SHARD_COMMENT(DBP_COMMENT); }
 	YY_BREAK
-case 244:
+case 252:
 YY_RULE_SETUP
-#line 896 "ob_proxy_parser_gbk.l"
+#line 918 "ob_proxy_parser_gbk.l"
 { return ROUTE_TAG; }
 	YY_BREAK
-case 245:
+case 253:
 YY_RULE_SETUP
-#line 897 "ob_proxy_parser_gbk.l"
+#line 919 "ob_proxy_parser_gbk.l"
 { return SYS_TAG; }
 	YY_BREAK
-case 246:
+case 254:
 YY_RULE_SETUP
-#line 898 "ob_proxy_parser_gbk.l"
+#line 920 "ob_proxy_parser_gbk.l"
 { return SCAN_ALL; }
 	YY_BREAK
-case 247:
+case 255:
+YY_RULE_SETUP
+#line 921 "ob_proxy_parser_gbk.l"
+{ return STICKY_SESSION; }
+	YY_BREAK
+case 256:
 YY_RULE_SETUP
-#line 899 "ob_proxy_parser_gbk.l"
+#line 922 "ob_proxy_parser_gbk.l"
 { return SHARD_KEY; }
 	YY_BREAK
-case 248:
+case 257:
 YY_RULE_SETUP
-#line 900 "ob_proxy_parser_gbk.l"
+#line 923 "ob_proxy_parser_gbk.l"
 { return TABLE_NAME;}
 	YY_BREAK
-case 249:
+case 258:
 YY_RULE_SETUP
-#line 901 "ob_proxy_parser_gbk.l"
+#line 924 "ob_proxy_parser_gbk.l"
 { return PARALL; }
 	YY_BREAK
-case 250:
+case 259:
 YY_RULE_SETUP
-#line 902 "ob_proxy_parser_gbk.l"
+#line 925 "ob_proxy_parser_gbk.l"
 { return GROUP_ID; }
 	YY_BREAK
-case 251:
+case 260:
 YY_RULE_SETUP
-#line 903 "ob_proxy_parser_gbk.l"
+#line 926 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_dbp_comment_trace_expr); return TRACE; }
 	YY_BREAK
-case 252:
+case 261:
 YY_RULE_SETUP
-#line 904 "ob_proxy_parser_gbk.l"
+#line 927 "ob_proxy_parser_gbk.l"
 { ENTER_QUOTE_STATE(comment_sq); }
 	YY_BREAK
-case 253:
+case 262:
 YY_RULE_SETUP
-#line 905 "ob_proxy_parser_gbk.l"
+#line 928 "ob_proxy_parser_gbk.l"
 { return yytext[0]; }
 	YY_BREAK
-case 254:
+case 263:
 YY_RULE_SETUP
-#line 906 "ob_proxy_parser_gbk.l"
+#line 929 "ob_proxy_parser_gbk.l"
 { return '('; }
 	YY_BREAK
-case 255:
+case 264:
 YY_RULE_SETUP
-#line 907 "ob_proxy_parser_gbk.l"
+#line 930 "ob_proxy_parser_gbk.l"
 { return ')'; }
 	YY_BREAK
-case 256:
+case 265:
 YY_RULE_SETUP
-#line 908 "ob_proxy_parser_gbk.l"
+#line 931 "ob_proxy_parser_gbk.l"
 { return ','; }
 	YY_BREAK
-case 257:
-/* rule 257 can match eol */
+case 266:
+/* rule 266 can match eol */
 YY_RULE_SETUP
-#line 909 "ob_proxy_parser_gbk.l"
+#line 932 "ob_proxy_parser_gbk.l"
 { }
 	YY_BREAK
-case 258:
+case 267:
 YY_RULE_SETUP
-#line 910 "ob_proxy_parser_gbk.l"
+#line 933 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 259:
+case 268:
 YY_RULE_SETUP
-#line 912 "ob_proxy_parser_gbk.l"
+#line 935 "ob_proxy_parser_gbk.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -6905,39 +7028,39 @@ YY_RULE_SETUP
   return COMMENT_END;
 }
 	YY_BREAK
-case 260:
+case 269:
 YY_RULE_SETUP
-#line 922 "ob_proxy_parser_gbk.l"
+#line 945 "ob_proxy_parser_gbk.l"
 {return yytext[0];}
 	YY_BREAK
-case 261:
+case 270:
 YY_RULE_SETUP
-#line 923 "ob_proxy_parser_gbk.l"
+#line 946 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_dbp_comment_trace_value_expr); return '('; }
 	YY_BREAK
-case 262:
-/* rule 262 can match eol */
+case 271:
+/* rule 271 can match eol */
 YY_RULE_SETUP
-#line 924 "ob_proxy_parser_gbk.l"
+#line 947 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 263:
+case 272:
 YY_RULE_SETUP
-#line 926 "ob_proxy_parser_gbk.l"
+#line 949 "ob_proxy_parser_gbk.l"
 { ENTER_QUOTE_STATE(comment_sq); }
 	YY_BREAK
-case 264:
+case 273:
 YY_RULE_SETUP
-#line 927 "ob_proxy_parser_gbk.l"
+#line 950 "ob_proxy_parser_gbk.l"
 {
   POP_STATE();
   POP_STATE();
   return ')';
 }
 	YY_BREAK
-case 265:
+case 274:
 YY_RULE_SETUP
-#line 932 "ob_proxy_parser_gbk.l"
+#line 955 "ob_proxy_parser_gbk.l"
 {
   do {
     PUSH_STATE(in_dbp_comment_trace_value_expr_calc)
@@ -6951,9 +7074,9 @@ YY_RULE_SETUP
   } while (0);
 }
 	YY_BREAK
-case 266:
+case 275:
 YY_RULE_SETUP
-#line 944 "ob_proxy_parser_gbk.l"
+#line 967 "ob_proxy_parser_gbk.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -6967,15 +7090,15 @@ YY_RULE_SETUP
   return COMMENT_END;
 }
 	YY_BREAK
-case 267:
-/* rule 267 can match eol */
+case 276:
+/* rule 276 can match eol */
 YY_RULE_SETUP
-#line 956 "ob_proxy_parser_gbk.l"
+#line 979 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 268:
+case 277:
 YY_RULE_SETUP
-#line 957 "ob_proxy_parser_gbk.l"
+#line 980 "ob_proxy_parser_gbk.l"
 {
   do {
     PUSH_STATE(in_dbp_comment_trace_value_expr_calc)
@@ -6988,10 +7111,10 @@ YY_RULE_SETUP
   } while (0);
 }
 	YY_BREAK
-case 269:
-/* rule 269 can match eol */
+case 278:
+/* rule 278 can match eol */
 YY_RULE_SETUP
-#line 969 "ob_proxy_parser_gbk.l"
+#line 992 "ob_proxy_parser_gbk.l"
 {
   POP_STATE();
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7004,9 +7127,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 270:
+case 279:
 YY_RULE_SETUP
-#line 981 "ob_proxy_parser_gbk.l"
+#line 1004 "ob_proxy_parser_gbk.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7015,9 +7138,9 @@ YY_RULE_SETUP
 }
 	YY_BREAK
 /* quote */
-case 271:
+case 280:
 YY_RULE_SETUP
-#line 989 "ob_proxy_parser_gbk.l"
+#line 1012 "ob_proxy_parser_gbk.l"
 {
   PUSH_STATE(sq);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7028,10 +7151,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 272:
-/* rule 272 can match eol */
+case 281:
+/* rule 281 can match eol */
 YY_RULE_SETUP
-#line 999 "ob_proxy_parser_gbk.l"
+#line 1022 "ob_proxy_parser_gbk.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7039,9 +7162,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 273:
+case 282:
 YY_RULE_SETUP
-#line 1006 "ob_proxy_parser_gbk.l"
+#line 1029 "ob_proxy_parser_gbk.l"
 {
   POP_STATE();
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7059,32 +7182,32 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 274:
+case 283:
 YY_RULE_SETUP
-#line 1023 "ob_proxy_parser_gbk.l"
+#line 1046 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 275:
-/* rule 275 can match eol */
+case 284:
+/* rule 284 can match eol */
 YY_RULE_SETUP
-#line 1024 "ob_proxy_parser_gbk.l"
+#line 1047 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 276:
-/* rule 276 can match eol */
+case 285:
+/* rule 285 can match eol */
 YY_RULE_SETUP
-#line 1025 "ob_proxy_parser_gbk.l"
+#line 1048 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
 case YY_STATE_EOF(sq):
-#line 1026 "ob_proxy_parser_gbk.l"
+#line 1049 "ob_proxy_parser_gbk.l"
 { return ERROR; }
 	YY_BREAK
 /* comment sq return name_str */
-case 277:
-/* rule 277 can match eol */
+case 286:
+/* rule 286 can match eol */
 YY_RULE_SETUP
-#line 1029 "ob_proxy_parser_gbk.l"
+#line 1052 "ob_proxy_parser_gbk.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7092,9 +7215,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 278:
+case 287:
 YY_RULE_SETUP
-#line 1036 "ob_proxy_parser_gbk.l"
+#line 1059 "ob_proxy_parser_gbk.l"
 {
   POP_STATE();
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7106,31 +7229,31 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 279:
+case 288:
 YY_RULE_SETUP
-#line 1047 "ob_proxy_parser_gbk.l"
+#line 1070 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 280:
-/* rule 280 can match eol */
+case 289:
+/* rule 289 can match eol */
 YY_RULE_SETUP
-#line 1048 "ob_proxy_parser_gbk.l"
+#line 1071 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 281:
-/* rule 281 can match eol */
+case 290:
+/* rule 290 can match eol */
 YY_RULE_SETUP
-#line 1049 "ob_proxy_parser_gbk.l"
+#line 1072 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
 case YY_STATE_EOF(comment_sq):
-#line 1050 "ob_proxy_parser_gbk.l"
+#line 1073 "ob_proxy_parser_gbk.l"
 { return ERROR; }
 	YY_BREAK
 /* dquote */
-case 282:
+case 291:
 YY_RULE_SETUP
-#line 1053 "ob_proxy_parser_gbk.l"
+#line 1076 "ob_proxy_parser_gbk.l"
 {
   PUSH_STATE(dq);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7141,10 +7264,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 283:
-/* rule 283 can match eol */
+case 292:
+/* rule 292 can match eol */
 YY_RULE_SETUP
-#line 1063 "ob_proxy_parser_gbk.l"
+#line 1086 "ob_proxy_parser_gbk.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7152,9 +7275,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 284:
+case 293:
 YY_RULE_SETUP
-#line 1070 "ob_proxy_parser_gbk.l"
+#line 1093 "ob_proxy_parser_gbk.l"
 {
   POP_STATE();
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7172,31 +7295,31 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 285:
+case 294:
 YY_RULE_SETUP
-#line 1087 "ob_proxy_parser_gbk.l"
+#line 1110 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 286:
-/* rule 286 can match eol */
+case 295:
+/* rule 295 can match eol */
 YY_RULE_SETUP
-#line 1088 "ob_proxy_parser_gbk.l"
+#line 1111 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 287:
-/* rule 287 can match eol */
+case 296:
+/* rule 296 can match eol */
 YY_RULE_SETUP
-#line 1089 "ob_proxy_parser_gbk.l"
+#line 1112 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
 case YY_STATE_EOF(dq):
-#line 1090 "ob_proxy_parser_gbk.l"
+#line 1113 "ob_proxy_parser_gbk.l"
 { return ERROR; }
 	YY_BREAK
 /* backtick */
-case 288:
+case 297:
 YY_RULE_SETUP
-#line 1094 "ob_proxy_parser_gbk.l"
+#line 1117 "ob_proxy_parser_gbk.l"
 {
   PUSH_STATE(bt);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7207,9 +7330,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 289:
+case 298:
 YY_RULE_SETUP
-#line 1104 "ob_proxy_parser_gbk.l"
+#line 1127 "ob_proxy_parser_gbk.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (NULL != p && NULL != p->tmp_buf_ && p->tmp_len_ + 1 < OBPROXY_MAX_NAME_LENGTH) {
@@ -7217,10 +7340,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 290:
-/* rule 290 can match eol */
+case 299:
+/* rule 299 can match eol */
 YY_RULE_SETUP
-#line 1111 "ob_proxy_parser_gbk.l"
+#line 1134 "ob_proxy_parser_gbk.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (NULL != p && NULL != p->tmp_buf_ && p->tmp_len_ + yyleng < OBPROXY_MAX_NAME_LENGTH) {
@@ -7229,9 +7352,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 291:
+case 300:
 YY_RULE_SETUP
-#line 1119 "ob_proxy_parser_gbk.l"
+#line 1142 "ob_proxy_parser_gbk.l"
 {
   POP_STATE();
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7245,248 +7368,242 @@ YY_RULE_SETUP
 }
 	YY_BREAK
 case YY_STATE_EOF(bt):
-#line 1131 "ob_proxy_parser_gbk.l"
+#line 1154 "ob_proxy_parser_gbk.l"
 {
   return ERROR;
 }
 	YY_BREAK
-case 292:
+case 301:
 YY_RULE_SETUP
-#line 1135 "ob_proxy_parser_gbk.l"
+#line 1158 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 293:
-/* rule 293 can match eol */
+case 302:
+/* rule 302 can match eol */
 YY_RULE_SETUP
-#line 1136 "ob_proxy_parser_gbk.l"
+#line 1159 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
-case 294:
+case 303:
 YY_RULE_SETUP
-#line 1137 "ob_proxy_parser_gbk.l"
+#line 1160 "ob_proxy_parser_gbk.l"
 { POP_STATE(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case YY_STATE_EOF(bt_in_expr):
-#line 1138 "ob_proxy_parser_gbk.l"
+#line 1161 "ob_proxy_parser_gbk.l"
 { return ERROR; }
 	YY_BREAK
 /* some useful keyword */
-case 295:
-/* rule 295 can match eol */
+case 304:
+/* rule 304 can match eol */
 YY_RULE_SETUP
-#line 1141 "ob_proxy_parser_gbk.l"
+#line 1164 "ob_proxy_parser_gbk.l"
 { RETURN_IGNORED_WORD_FOR_DUAL(); }
 	YY_BREAK
-case 296:
+case 305:
 YY_RULE_SETUP
-#line 1142 "ob_proxy_parser_gbk.l"
+#line 1165 "ob_proxy_parser_gbk.l"
 { POP_STATE(); PUSH_STATE(INITIAL); return FROM; }
 	YY_BREAK
-case 297:
+case 306:
 YY_RULE_SETUP
-#line 1143 "ob_proxy_parser_gbk.l"
+#line 1166 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_subquery); return '('; }
 	YY_BREAK
-case 298:
+case 307:
 YY_RULE_SETUP
-#line 1144 "ob_proxy_parser_gbk.l"
+#line 1167 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(dq); }
 	YY_BREAK
-case 299:
+case 308:
 YY_RULE_SETUP
-#line 1145 "ob_proxy_parser_gbk.l"
+#line 1168 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(sq); }
 	YY_BREAK
-case 300:
+case 309:
 YY_RULE_SETUP
-#line 1146 "ob_proxy_parser_gbk.l"
+#line 1169 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(bt_in_expr); }
 	YY_BREAK
-case 301:
+case 310:
 YY_RULE_SETUP
-#line 1147 "ob_proxy_parser_gbk.l"
+#line 1170 "ob_proxy_parser_gbk.l"
 { SET_FOUND_ROWS(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 302:
+case 311:
 YY_RULE_SETUP
-#line 1148 "ob_proxy_parser_gbk.l"
+#line 1171 "ob_proxy_parser_gbk.l"
 { SET_ROW_COUNT(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 303:
+case 312:
 YY_RULE_SETUP
-#line 1149 "ob_proxy_parser_gbk.l"
+#line 1172 "ob_proxy_parser_gbk.l"
 { SET_LAST_INSERT_ID(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 304:
+case 313:
 YY_RULE_SETUP
-#line 1150 "ob_proxy_parser_gbk.l"
+#line 1173 "ob_proxy_parser_gbk.l"
 { SET_GLOBAL_SET_STMT(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 305:
-/* rule 305 can match eol */
+case 314:
+/* rule 314 can match eol */
 YY_RULE_SETUP
-#line 1151 "ob_proxy_parser_gbk.l"
+#line 1174 "ob_proxy_parser_gbk.l"
 { RETURN_COL_NAME(TX_READ_ONLY); }
 	YY_BREAK
-case 306:
-/* rule 306 can match eol */
-YY_RULE_SETUP
-#line 1152 "ob_proxy_parser_gbk.l"
-{ return AUTOCOMMIT_0; }
-	YY_BREAK
-case 307:
+case 315:
 YY_RULE_SETUP
-#line 1153 "ob_proxy_parser_gbk.l"
+#line 1175 "ob_proxy_parser_gbk.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case YY_STATE_EOF(in_expr):
-#line 1154 "ob_proxy_parser_gbk.l"
+#line 1176 "ob_proxy_parser_gbk.l"
 { return END_P; }
 	YY_BREAK
-case 308:
-/* rule 308 can match eol */
+case 316:
+/* rule 316 can match eol */
 YY_RULE_SETUP
-#line 1155 "ob_proxy_parser_gbk.l"
+#line 1177 "ob_proxy_parser_gbk.l"
 { }
 	YY_BREAK
-case 309:
+case 317:
 YY_RULE_SETUP
-#line 1156 "ob_proxy_parser_gbk.l"
+#line 1178 "ob_proxy_parser_gbk.l"
 { POP_STATE(); PUSH_STATE(INITIAL); return yytext[0]; }
 	YY_BREAK
-case 310:
+case 318:
 YY_RULE_SETUP
-#line 1157 "ob_proxy_parser_gbk.l"
+#line 1179 "ob_proxy_parser_gbk.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 311:
+case 319:
 YY_RULE_SETUP
-#line 1159 "ob_proxy_parser_gbk.l"
+#line 1181 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_expr); return SELECT; }
 	YY_BREAK
-case 312:
+case 320:
 YY_RULE_SETUP
-#line 1160 "ob_proxy_parser_gbk.l"
+#line 1182 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_subquery); return '('; }
 	YY_BREAK
-case 313:
+case 321:
 YY_RULE_SETUP
-#line 1161 "ob_proxy_parser_gbk.l"
+#line 1183 "ob_proxy_parser_gbk.l"
 { POP_STATE(); return ')'; }
 	YY_BREAK
-case 314:
+case 322:
 YY_RULE_SETUP
-#line 1162 "ob_proxy_parser_gbk.l"
+#line 1184 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(dq); }
 	YY_BREAK
-case 315:
+case 323:
 YY_RULE_SETUP
-#line 1163 "ob_proxy_parser_gbk.l"
+#line 1185 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(sq); }
 	YY_BREAK
 case YY_STATE_EOF(in_subquery):
-#line 1164 "ob_proxy_parser_gbk.l"
+#line 1186 "ob_proxy_parser_gbk.l"
 { return END_P; }
 	YY_BREAK
-case 316:
-/* rule 316 can match eol */
+case 324:
+/* rule 324 can match eol */
 YY_RULE_SETUP
-#line 1165 "ob_proxy_parser_gbk.l"
+#line 1187 "ob_proxy_parser_gbk.l"
 { }
 	YY_BREAK
-case 317:
+case 325:
 YY_RULE_SETUP
-#line 1166 "ob_proxy_parser_gbk.l"
+#line 1188 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_no_select_query); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 318:
+case 326:
 YY_RULE_SETUP
-#line 1168 "ob_proxy_parser_gbk.l"
+#line 1190 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(in_subquery); return '('; }
 	YY_BREAK
-case 319:
+case 327:
 YY_RULE_SETUP
-#line 1169 "ob_proxy_parser_gbk.l"
+#line 1191 "ob_proxy_parser_gbk.l"
 { POP_STATE(); POP_STATE(); return ')'; }
 	YY_BREAK
-case 320:
+case 328:
 YY_RULE_SETUP
-#line 1170 "ob_proxy_parser_gbk.l"
+#line 1192 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(dq); }
 	YY_BREAK
-case 321:
+case 329:
 YY_RULE_SETUP
-#line 1171 "ob_proxy_parser_gbk.l"
+#line 1193 "ob_proxy_parser_gbk.l"
 { PUSH_STATE(sq); }
 	YY_BREAK
-case 322:
+case 330:
 YY_RULE_SETUP
-#line 1172 "ob_proxy_parser_gbk.l"
+#line 1194 "ob_proxy_parser_gbk.l"
 { SET_FOUND_ROWS(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 323:
+case 331:
 YY_RULE_SETUP
-#line 1173 "ob_proxy_parser_gbk.l"
+#line 1195 "ob_proxy_parser_gbk.l"
 { SET_ROW_COUNT(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 324:
+case 332:
 YY_RULE_SETUP
-#line 1174 "ob_proxy_parser_gbk.l"
+#line 1196 "ob_proxy_parser_gbk.l"
 { SET_LAST_INSERT_ID(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 325:
+case 333:
 YY_RULE_SETUP
-#line 1175 "ob_proxy_parser_gbk.l"
+#line 1197 "ob_proxy_parser_gbk.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case YY_STATE_EOF(in_no_select_query):
-#line 1176 "ob_proxy_parser_gbk.l"
+#line 1198 "ob_proxy_parser_gbk.l"
 { return END_P; }
 	YY_BREAK
-case 326:
-/* rule 326 can match eol */
+case 334:
+/* rule 334 can match eol */
 YY_RULE_SETUP
-#line 1177 "ob_proxy_parser_gbk.l"
+#line 1199 "ob_proxy_parser_gbk.l"
 { }
 	YY_BREAK
-case 327:
+case 335:
 YY_RULE_SETUP
-#line 1178 "ob_proxy_parser_gbk.l"
+#line 1200 "ob_proxy_parser_gbk.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 328:
+case 336:
 YY_RULE_SETUP
-#line 1180 "ob_proxy_parser_gbk.l"
+#line 1202 "ob_proxy_parser_gbk.l"
 { return FROM; }
 	YY_BREAK
-case 329:
+case 337:
 YY_RULE_SETUP
-#line 1181 "ob_proxy_parser_gbk.l"
+#line 1203 "ob_proxy_parser_gbk.l"
 { return yytext[0]; }
 	YY_BREAK
-case 330:
+case 338:
 YY_RULE_SETUP
-#line 1182 "ob_proxy_parser_gbk.l"
+#line 1204 "ob_proxy_parser_gbk.l"
 { RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 331:
+case 339:
 YY_RULE_SETUP
-#line 1183 "ob_proxy_parser_gbk.l"
+#line 1205 "ob_proxy_parser_gbk.l"
 { POP_STATE(); }
 	YY_BREAK
-case 332:
+case 340:
 YY_RULE_SETUP
-#line 1184 "ob_proxy_parser_gbk.l"
+#line 1206 "ob_proxy_parser_gbk.l"
 { POP_STATE(); }
 	YY_BREAK
-case 333:
+case 341:
 YY_RULE_SETUP
-#line 1186 "ob_proxy_parser_gbk.l"
-{ POP_STATE(); return BEGI;}
+#line 1208 "ob_proxy_parser_gbk.l"
+{ POP_STATE(); RETURN_NON_RESERVED_KEYWORD(BEGI);}
 	YY_BREAK
-case 334:
+case 342:
 YY_RULE_SETUP
-#line 1187 "ob_proxy_parser_gbk.l"
+#line 1209 "ob_proxy_parser_gbk.l"
 {}
 	YY_BREAK
 case YY_STATE_EOF(INITIAL):
@@ -7505,21 +7622,22 @@ case YY_STATE_EOF(in_dbp_comment_trace_value_expr_calc):
 case YY_STATE_EOF(in_anonymous_block):
 case YY_STATE_EOF(prepare):
 case YY_STATE_EOF(insert_all_expr):
+case YY_STATE_EOF(show_topology):
 case YY_STATE_EOF(proxy_icmd_state):
-#line 1189 "ob_proxy_parser_gbk.l"
+#line 1211 "ob_proxy_parser_gbk.l"
 { return END_P; }
 	YY_BREAK
-case 335:
+case 343:
 YY_RULE_SETUP
-#line 1190 "ob_proxy_parser_gbk.l"
+#line 1212 "ob_proxy_parser_gbk.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 336:
+case 344:
 YY_RULE_SETUP
-#line 1191 "ob_proxy_parser_gbk.l"
+#line 1213 "ob_proxy_parser_gbk.l"
 ECHO;
 	YY_BREAK
-#line 7525 "ob_proxy_parser_gbk_lex.c"
+#line 7643 "ob_proxy_parser_gbk_lex.c"
 
 	case YY_END_OF_BUFFER:
 		{
@@ -7811,7 +7929,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 		while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 			{
 			yy_current_state = (int) yy_def[yy_current_state];
-			if ( yy_current_state >= 2327 )
+			if ( yy_current_state >= 2515 )
 				yy_c = yy_meta[(unsigned int) yy_c];
 			}
 		yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
@@ -7840,11 +7958,11 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 	while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 		{
 		yy_current_state = (int) yy_def[yy_current_state];
-		if ( yy_current_state >= 2327 )
+		if ( yy_current_state >= 2515 )
 			yy_c = yy_meta[(unsigned int) yy_c];
 		}
 	yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
-	yy_is_jam = (yy_current_state == 2326);
+	yy_is_jam = (yy_current_state == 2514);
 
 	return yy_is_jam ? 0 : yy_current_state;
 }
@@ -8669,7 +8787,7 @@ static int yy_flex_strlen (yyconst char * s , yyscan_t yyscanner)
 
 #define YYTABLES_NAME "yytables"
 
-#line 1191 "ob_proxy_parser_gbk.l"
+#line 1213 "ob_proxy_parser_gbk.l"
 
 
 inline void *ob_proxy_parser_gbk_yyalloc(size_t bytes,void *yyscanner)
@@ -8879,96 +8997,104 @@ extern int ob_proxy_parser_gbk_yydebug;
      UNION = 333,
      FOR = 334,
      TX_READ_ONLY = 335,
-     AUTOCOMMIT_0 = 336,
-     SELECT_OBPROXY_ROUTE_ADDR = 337,
-     SET_OBPROXY_ROUTE_ADDR = 338,
-     NAME_OB_DOT = 339,
-     NAME_OB = 340,
-     EXPLAIN = 341,
-     DESC = 342,
-     DESCRIBE = 343,
-     NAME_STR = 344,
-     USE = 345,
-     HELP = 346,
-     SET_NAMES = 347,
-     SET_CHARSET = 348,
-     SET_PASSWORD = 349,
-     SET_DEFAULT = 350,
-     SET_OB_READ_CONSISTENCY = 351,
-     SET_TX_READ_ONLY = 352,
-     GLOBAL = 353,
-     SESSION = 354,
-     NUMBER_VAL = 355,
-     GROUP_ID = 356,
-     TABLE_ID = 357,
-     ELASTIC_ID = 358,
-     TESTLOAD = 359,
-     ODP_COMMENT = 360,
-     TNT_ID = 361,
-     DISASTER_STATUS = 362,
-     TRACE_ID = 363,
-     RPC_ID = 364,
+     SELECT_OBPROXY_ROUTE_ADDR = 336,
+     SET_OBPROXY_ROUTE_ADDR = 337,
+     NAME_OB_DOT = 338,
+     NAME_OB = 339,
+     EXPLAIN = 340,
+     DESC = 341,
+     DESCRIBE = 342,
+     NAME_STR = 343,
+     USE = 344,
+     HELP = 345,
+     SET_NAMES = 346,
+     SET_CHARSET = 347,
+     SET_PASSWORD = 348,
+     SET_DEFAULT = 349,
+     SET_OB_READ_CONSISTENCY = 350,
+     SET_TX_READ_ONLY = 351,
+     GLOBAL = 352,
+     SESSION = 353,
+     NUMBER_VAL = 354,
+     GROUP_ID = 355,
+     TABLE_ID = 356,
+     ELASTIC_ID = 357,
+     TESTLOAD = 358,
+     ODP_COMMENT = 359,
+     TNT_ID = 360,
+     DISASTER_STATUS = 361,
+     TRACE_ID = 362,
+     RPC_ID = 363,
+     TARGET_DB_SERVER = 364,
      DBP_COMMENT = 365,
      ROUTE_TAG = 366,
      SYS_TAG = 367,
      TABLE_NAME = 368,
      SCAN_ALL = 369,
-     PARALL = 370,
-     SHARD_KEY = 371,
-     INT_NUM = 372,
-     SHOW_PROXYNET = 373,
-     THREAD = 374,
-     CONNECTION = 375,
-     LIMIT = 376,
-     OFFSET = 377,
-     SHOW_PROCESSLIST = 378,
-     SHOW_PROXYSESSION = 379,
-     SHOW_GLOBALSESSION = 380,
-     ATTRIBUTE = 381,
-     VARIABLES = 382,
-     ALL = 383,
-     STAT = 384,
-     SHOW_PROXYCONFIG = 385,
-     DIFF = 386,
-     USER = 387,
-     LIKE = 388,
-     SHOW_PROXYSM = 389,
-     SHOW_PROXYCLUSTER = 390,
-     SHOW_PROXYRESOURCE = 391,
-     SHOW_PROXYCONGESTION = 392,
-     SHOW_PROXYROUTE = 393,
-     PARTITION = 394,
-     ROUTINE = 395,
-     SHOW_PROXYVIP = 396,
-     SHOW_PROXYMEMORY = 397,
-     OBJPOOL = 398,
-     SHOW_SQLAUDIT = 399,
-     SHOW_WARNLOG = 400,
-     SHOW_PROXYSTAT = 401,
-     REFRESH = 402,
-     SHOW_PROXYTRACE = 403,
-     SHOW_PROXYINFO = 404,
-     BINARY = 405,
-     UPGRADE = 406,
-     IDC = 407,
-     SHOW_TOPOLOGY = 408,
-     GROUP_NAME = 409,
-     SHOW_DB_VERSION = 410,
-     SHOW_DATABASES = 411,
-     SHOW_TABLES = 412,
-     SHOW_FULL_TABLES = 413,
-     SELECT_DATABASE = 414,
-     SHOW_CREATE_TABLE = 415,
-     SELECT_PROXY_VERSION = 416,
-     SHOW_COLUMNS = 417,
-     SHOW_INDEX = 418,
-     ALTER_PROXYCONFIG = 419,
-     ALTER_PROXYRESOURCE = 420,
-     PING_PROXY = 421,
-     KILL_PROXYSESSION = 422,
-     KILL_GLOBALSESSION = 423,
-     KILL = 424,
-     QUERY = 425
+     STICKY_SESSION = 370,
+     PARALL = 371,
+     SHARD_KEY = 372,
+     INT_NUM = 373,
+     SHOW_PROXYNET = 374,
+     THREAD = 375,
+     CONNECTION = 376,
+     LIMIT = 377,
+     OFFSET = 378,
+     SHOW_PROCESSLIST = 379,
+     SHOW_PROXYSESSION = 380,
+     SHOW_GLOBALSESSION = 381,
+     ATTRIBUTE = 382,
+     VARIABLES = 383,
+     ALL = 384,
+     STAT = 385,
+     SHOW_PROXYCONFIG = 386,
+     DIFF = 387,
+     USER = 388,
+     LIKE = 389,
+     SHOW_PROXYSM = 390,
+     SHOW_PROXYCLUSTER = 391,
+     SHOW_PROXYRESOURCE = 392,
+     SHOW_PROXYCONGESTION = 393,
+     SHOW_PROXYROUTE = 394,
+     PARTITION = 395,
+     ROUTINE = 396,
+     SHOW_PROXYVIP = 397,
+     SHOW_PROXYMEMORY = 398,
+     OBJPOOL = 399,
+     SHOW_SQLAUDIT = 400,
+     SHOW_WARNLOG = 401,
+     SHOW_PROXYSTAT = 402,
+     REFRESH = 403,
+     SHOW_PROXYTRACE = 404,
+     SHOW_PROXYINFO = 405,
+     BINARY = 406,
+     UPGRADE = 407,
+     IDC = 408,
+     SHOW_ELASTIC_ID = 409,
+     SHOW_TOPOLOGY = 410,
+     GROUP_NAME = 411,
+     SHOW_DB_VERSION = 412,
+     SHOW_DATABASES = 413,
+     SHOW_TABLES = 414,
+     SHOW_FULL_TABLES = 415,
+     SELECT_DATABASE = 416,
+     SHOW_CREATE_TABLE = 417,
+     SELECT_PROXY_VERSION = 418,
+     SHOW_COLUMNS = 419,
+     SHOW_INDEX = 420,
+     ALTER_PROXYCONFIG = 421,
+     ALTER_PROXYRESOURCE = 422,
+     PING_PROXY = 423,
+     KILL_PROXYSESSION = 424,
+     KILL_GLOBALSESSION = 425,
+     KILL = 426,
+     QUERY = 427,
+     SHOW_MASTER_STATUS = 428,
+     SHOW_BINARY_LOGS = 429,
+     SHOW_BINLOG_EVENTS = 430,
+     PURGE_BINARY_LOGS = 431,
+     RESET_MASTER = 432,
+     SHOW_BINLOG_SERVER_FOR_TENANT = 433
    };
 #endif
 
diff --git a/src/obproxy/opsql/parser/ob_proxy_parser_gbk_lex.h b/src/obproxy/opsql/parser/ob_proxy_parser_gbk_lex.h
index 13dc516c..2f58de10 100644
--- a/src/obproxy/opsql/parser/ob_proxy_parser_gbk_lex.h
+++ b/src/obproxy/opsql/parser/ob_proxy_parser_gbk_lex.h
@@ -244,9 +244,10 @@ void ob_proxy_parser_gbk_yyfree (void * ,yyscan_t yyscanner );
 #define prepare 22
 #define insert_all_expr 23
 #define set_expr 24
-#define show_topology 25
-#define show_tables 26
-#define proxy_icmd_state 27
+#define show_elastic_id 25
+#define show_topology 26
+#define show_tables 27
+#define proxy_icmd_state 28
 
 #endif
 
@@ -364,9 +365,9 @@ extern int ob_proxy_parser_gbk_yylex \
 #undef YY_DECL
 #endif
 
-#line 1191 "ob_proxy_parser_gbk.l"
+#line 1213 "ob_proxy_parser_gbk.l"
 
 
-#line 371 "ob_proxy_parser_gbk_lex.h"
+#line 372 "ob_proxy_parser_gbk_lex.h"
 #undef ob_proxy_parser_gbk_yyIN_HEADER
 #endif /* ob_proxy_parser_gbk_yyHEADER_H */
diff --git a/src/obproxy/opsql/parser/ob_proxy_parser_gbk_tab.c b/src/obproxy/opsql/parser/ob_proxy_parser_gbk_tab.c
index ad65b907..4dec0fda 100644
--- a/src/obproxy/opsql/parser/ob_proxy_parser_gbk_tab.c
+++ b/src/obproxy/opsql/parser/ob_proxy_parser_gbk_tab.c
@@ -112,9 +112,6 @@ static inline void handle_stmt_end(ObProxyParseResult* result)
       case OBPROXY_T_SELECT_TX_RO:
         result->stmt_type_ = OBPROXY_T_SELECT;
         break;
-      case OBPROXY_T_SET_AC_0:
-        result->stmt_type_ = OBPROXY_T_OTHERS;
-        break;
       case OBPROXY_T_BEGIN:
         result->stmt_type_ = OBPROXY_T_OTHERS;
         break;
@@ -133,7 +130,7 @@ static inline void handle_stmt_end(ObProxyParseResult* result)
     }
   } else {
     result->stmt_type_ = result->cur_stmt_type_;
-  } 
+  }
 
   if (OBPROXY_T_TEXT_PS_PREPARE == result->text_ps_inner_stmt_type_) {
     ObProxyBasicStmtType tmp_type = result->cur_stmt_type_;
@@ -459,96 +456,104 @@ extern int ob_proxy_parser_gbk_yydebug;
      UNION = 333,
      FOR = 334,
      TX_READ_ONLY = 335,
-     AUTOCOMMIT_0 = 336,
-     SELECT_OBPROXY_ROUTE_ADDR = 337,
-     SET_OBPROXY_ROUTE_ADDR = 338,
-     NAME_OB_DOT = 339,
-     NAME_OB = 340,
-     EXPLAIN = 341,
-     DESC = 342,
-     DESCRIBE = 343,
-     NAME_STR = 344,
-     USE = 345,
-     HELP = 346,
-     SET_NAMES = 347,
-     SET_CHARSET = 348,
-     SET_PASSWORD = 349,
-     SET_DEFAULT = 350,
-     SET_OB_READ_CONSISTENCY = 351,
-     SET_TX_READ_ONLY = 352,
-     GLOBAL = 353,
-     SESSION = 354,
-     NUMBER_VAL = 355,
-     GROUP_ID = 356,
-     TABLE_ID = 357,
-     ELASTIC_ID = 358,
-     TESTLOAD = 359,
-     ODP_COMMENT = 360,
-     TNT_ID = 361,
-     DISASTER_STATUS = 362,
-     TRACE_ID = 363,
-     RPC_ID = 364,
+     SELECT_OBPROXY_ROUTE_ADDR = 336,
+     SET_OBPROXY_ROUTE_ADDR = 337,
+     NAME_OB_DOT = 338,
+     NAME_OB = 339,
+     EXPLAIN = 340,
+     DESC = 341,
+     DESCRIBE = 342,
+     NAME_STR = 343,
+     USE = 344,
+     HELP = 345,
+     SET_NAMES = 346,
+     SET_CHARSET = 347,
+     SET_PASSWORD = 348,
+     SET_DEFAULT = 349,
+     SET_OB_READ_CONSISTENCY = 350,
+     SET_TX_READ_ONLY = 351,
+     GLOBAL = 352,
+     SESSION = 353,
+     NUMBER_VAL = 354,
+     GROUP_ID = 355,
+     TABLE_ID = 356,
+     ELASTIC_ID = 357,
+     TESTLOAD = 358,
+     ODP_COMMENT = 359,
+     TNT_ID = 360,
+     DISASTER_STATUS = 361,
+     TRACE_ID = 362,
+     RPC_ID = 363,
+     TARGET_DB_SERVER = 364,
      DBP_COMMENT = 365,
      ROUTE_TAG = 366,
      SYS_TAG = 367,
      TABLE_NAME = 368,
      SCAN_ALL = 369,
-     PARALL = 370,
-     SHARD_KEY = 371,
-     INT_NUM = 372,
-     SHOW_PROXYNET = 373,
-     THREAD = 374,
-     CONNECTION = 375,
-     LIMIT = 376,
-     OFFSET = 377,
-     SHOW_PROCESSLIST = 378,
-     SHOW_PROXYSESSION = 379,
-     SHOW_GLOBALSESSION = 380,
-     ATTRIBUTE = 381,
-     VARIABLES = 382,
-     ALL = 383,
-     STAT = 384,
-     SHOW_PROXYCONFIG = 385,
-     DIFF = 386,
-     USER = 387,
-     LIKE = 388,
-     SHOW_PROXYSM = 389,
-     SHOW_PROXYCLUSTER = 390,
-     SHOW_PROXYRESOURCE = 391,
-     SHOW_PROXYCONGESTION = 392,
-     SHOW_PROXYROUTE = 393,
-     PARTITION = 394,
-     ROUTINE = 395,
-     SHOW_PROXYVIP = 396,
-     SHOW_PROXYMEMORY = 397,
-     OBJPOOL = 398,
-     SHOW_SQLAUDIT = 399,
-     SHOW_WARNLOG = 400,
-     SHOW_PROXYSTAT = 401,
-     REFRESH = 402,
-     SHOW_PROXYTRACE = 403,
-     SHOW_PROXYINFO = 404,
-     BINARY = 405,
-     UPGRADE = 406,
-     IDC = 407,
-     SHOW_TOPOLOGY = 408,
-     GROUP_NAME = 409,
-     SHOW_DB_VERSION = 410,
-     SHOW_DATABASES = 411,
-     SHOW_TABLES = 412,
-     SHOW_FULL_TABLES = 413,
-     SELECT_DATABASE = 414,
-     SHOW_CREATE_TABLE = 415,
-     SELECT_PROXY_VERSION = 416,
-     SHOW_COLUMNS = 417,
-     SHOW_INDEX = 418,
-     ALTER_PROXYCONFIG = 419,
-     ALTER_PROXYRESOURCE = 420,
-     PING_PROXY = 421,
-     KILL_PROXYSESSION = 422,
-     KILL_GLOBALSESSION = 423,
-     KILL = 424,
-     QUERY = 425
+     STICKY_SESSION = 370,
+     PARALL = 371,
+     SHARD_KEY = 372,
+     INT_NUM = 373,
+     SHOW_PROXYNET = 374,
+     THREAD = 375,
+     CONNECTION = 376,
+     LIMIT = 377,
+     OFFSET = 378,
+     SHOW_PROCESSLIST = 379,
+     SHOW_PROXYSESSION = 380,
+     SHOW_GLOBALSESSION = 381,
+     ATTRIBUTE = 382,
+     VARIABLES = 383,
+     ALL = 384,
+     STAT = 385,
+     SHOW_PROXYCONFIG = 386,
+     DIFF = 387,
+     USER = 388,
+     LIKE = 389,
+     SHOW_PROXYSM = 390,
+     SHOW_PROXYCLUSTER = 391,
+     SHOW_PROXYRESOURCE = 392,
+     SHOW_PROXYCONGESTION = 393,
+     SHOW_PROXYROUTE = 394,
+     PARTITION = 395,
+     ROUTINE = 396,
+     SHOW_PROXYVIP = 397,
+     SHOW_PROXYMEMORY = 398,
+     OBJPOOL = 399,
+     SHOW_SQLAUDIT = 400,
+     SHOW_WARNLOG = 401,
+     SHOW_PROXYSTAT = 402,
+     REFRESH = 403,
+     SHOW_PROXYTRACE = 404,
+     SHOW_PROXYINFO = 405,
+     BINARY = 406,
+     UPGRADE = 407,
+     IDC = 408,
+     SHOW_ELASTIC_ID = 409,
+     SHOW_TOPOLOGY = 410,
+     GROUP_NAME = 411,
+     SHOW_DB_VERSION = 412,
+     SHOW_DATABASES = 413,
+     SHOW_TABLES = 414,
+     SHOW_FULL_TABLES = 415,
+     SELECT_DATABASE = 416,
+     SHOW_CREATE_TABLE = 417,
+     SELECT_PROXY_VERSION = 418,
+     SHOW_COLUMNS = 419,
+     SHOW_INDEX = 420,
+     ALTER_PROXYCONFIG = 421,
+     ALTER_PROXYRESOURCE = 422,
+     PING_PROXY = 423,
+     KILL_PROXYSESSION = 424,
+     KILL_GLOBALSESSION = 425,
+     KILL = 426,
+     QUERY = 427,
+     SHOW_MASTER_STATUS = 428,
+     SHOW_BINARY_LOGS = 429,
+     SHOW_BINLOG_EVENTS = 430,
+     PURGE_BINARY_LOGS = 431,
+     RESET_MASTER = 432,
+     SHOW_BINLOG_SERVER_FOR_TENANT = 433
    };
 #endif
 
@@ -811,22 +816,22 @@ union yyalloc
 #endif
 
 /* YYFINAL -- State number of the termination state.  */
-#define YYFINAL  322
+#define YYFINAL  314
 /* YYLAST -- Last index in YYTABLE.  */
-#define YYLAST   1614
+#define YYLAST   1384
 
 /* YYNTOKENS -- Number of terminals.  */
-#define YYNTOKENS  182
+#define YYNTOKENS  190
 /* YYNNTS -- Number of nonterminals.  */
-#define YYNNTS  137
+#define YYNNTS  138
 /* YYNRULES -- Number of rules.  */
-#define YYNRULES  442
+#define YYNRULES  435
 /* YYNRULES -- Number of states.  */
-#define YYNSTATES  713
+#define YYNSTATES  715
 
 /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
 #define YYUNDEFTOK  2
-#define YYMAXUTOK   425
+#define YYMAXUTOK   433
 
 #define YYTRANSLATE(YYX)						\
   ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
@@ -837,16 +842,16 @@ static const yytype_uint8 yytranslate[] =
        0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,   180,     2,     2,     2,     2,
-     175,   176,   181,     2,   173,     2,   177,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,   171,
-       2,   174,     2,     2,   172,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,   188,     2,     2,     2,     2,
+     183,   184,   189,     2,   181,     2,   185,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,   179,
+       2,   182,     2,     2,   180,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,   178,     2,   179,     2,     2,     2,     2,
+       2,     2,     2,   186,     2,   187,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
@@ -876,7 +881,8 @@ static const yytype_uint8 yytranslate[] =
      135,   136,   137,   138,   139,   140,   141,   142,   143,   144,
      145,   146,   147,   148,   149,   150,   151,   152,   153,   154,
      155,   156,   157,   158,   159,   160,   161,   162,   163,   164,
-     165,   166,   167,   168,   169,   170
+     165,   166,   167,   168,   169,   170,   171,   172,   173,   174,
+     175,   176,   177,   178
 };
 
 #if YYDEBUG
@@ -887,234 +893,231 @@ static const yytype_uint16 yyprhs[] =
        0,     0,     3,     5,     7,     9,    12,    15,    18,    22,
       24,    27,    31,    33,    36,    38,    40,    42,    44,    46,
       48,    50,    52,    54,    56,    58,    60,    62,    64,    66,
-      68,    70,    72,    74,    76,    78,    80,    82,    84,    88,
-      91,    94,    97,   100,   103,   106,   108,   110,   113,   115,
-     117,   119,   121,   122,   124,   126,   129,   131,   133,   135,
-     137,   139,   141,   143,   145,   148,   153,   156,   158,   160,
-     164,   167,   171,   174,   177,   181,   185,   187,   189,   191,
-     193,   195,   197,   199,   201,   203,   206,   208,   210,   212,
-     213,   216,   217,   219,   222,   228,   232,   234,   238,   241,
-     245,   247,   249,   251,   253,   255,   257,   259,   261,   263,
-     265,   267,   269,   271,   273,   276,   279,   283,   289,   293,
-     299,   300,   303,   304,   307,   311,   315,   321,   323,   325,
-     329,   335,   343,   345,   349,   351,   353,   355,   357,   359,
-     361,   367,   369,   373,   379,   380,   382,   386,   388,   390,
-     392,   395,   399,   401,   403,   406,   408,   411,   415,   419,
-     421,   423,   425,   426,   430,   432,   436,   440,   446,   449,
-     452,   457,   460,   463,   467,   469,   474,   481,   486,   492,
-     499,   504,   508,   510,   512,   514,   516,   519,   523,   529,
-     536,   543,   550,   557,   564,   572,   579,   586,   593,   600,
-     609,   618,   619,   622,   625,   628,   630,   634,   636,   641,
-     646,   650,   657,   662,   667,   674,   678,   680,   684,   685,
-     689,   693,   697,   701,   705,   709,   713,   717,   721,   725,
-     731,   735,   736,   738,   739,   741,   743,   745,   747,   750,
-     752,   755,   757,   760,   763,   767,   768,   770,   773,   775,
-     778,   780,   783,   786,   787,   790,   795,   797,   802,   808,
-     810,   815,   820,   826,   827,   829,   831,   833,   834,   836,
-     840,   844,   847,   849,   851,   853,   855,   857,   859,   861,
-     863,   865,   867,   869,   871,   873,   875,   877,   879,   881,
-     883,   885,   887,   889,   891,   893,   894,   897,   902,   907,
-     908,   911,   912,   915,   918,   920,   922,   926,   929,   933,
-     938,   940,   943,   944,   947,   951,   954,   957,   960,   961,
-     964,   968,   971,   975,   978,   982,   986,   991,   993,   996,
-     999,  1003,  1006,  1009,  1010,  1012,  1014,  1017,  1020,  1024,
-    1027,  1029,  1032,  1034,  1037,  1040,  1043,  1046,  1047,  1049,
-    1053,  1059,  1062,  1066,  1069,  1070,  1072,  1075,  1078,  1081,
-    1084,  1089,  1095,  1101,  1105,  1107,  1110,  1114,  1118,  1121,
-    1124,  1128,  1132,  1133,  1136,  1138,  1142,  1146,  1150,  1151,
-    1153,  1155,  1159,  1162,  1166,  1169,  1172,  1174,  1175,  1178,
-    1183,  1186,  1188,  1192,  1195,  1200,  1204,  1210,  1212,  1214,
-    1216,  1218,  1220,  1222,  1224,  1226,  1228,  1230,  1232,  1234,
-    1236,  1238,  1240,  1242,  1244,  1246,  1248,  1250,  1252,  1254,
-    1256,  1258,  1260,  1262,  1264,  1266,  1268,  1270,  1272,  1274,
-    1276,  1278,  1280,  1282,  1284,  1286,  1288,  1290,  1292,  1294,
-    1296,  1298,  1300
+      68,    70,    72,    74,    76,    78,    80,    82,    84,    86,
+      90,    93,    96,    99,   102,   105,   108,   110,   112,   115,
+     117,   119,   121,   123,   124,   126,   128,   131,   133,   135,
+     137,   139,   141,   143,   145,   147,   150,   155,   158,   160,
+     162,   166,   169,   173,   176,   179,   183,   187,   189,   191,
+     193,   195,   197,   199,   201,   203,   205,   208,   210,   212,
+     214,   215,   218,   219,   221,   224,   230,   234,   236,   240,
+     242,   244,   246,   248,   250,   252,   254,   256,   258,   260,
+     262,   264,   266,   268,   271,   274,   278,   284,   288,   294,
+     295,   298,   299,   302,   306,   310,   316,   318,   320,   324,
+     330,   338,   340,   344,   346,   350,   352,   354,   356,   358,
+     360,   362,   368,   370,   374,   380,   381,   383,   387,   389,
+     391,   393,   396,   400,   402,   404,   407,   409,   412,   416,
+     420,   422,   424,   426,   427,   431,   433,   437,   441,   447,
+     450,   453,   458,   461,   464,   468,   470,   475,   482,   487,
+     493,   500,   505,   509,   511,   513,   515,   517,   520,   524,
+     530,   537,   544,   551,   558,   565,   573,   580,   587,   594,
+     601,   610,   619,   626,   627,   630,   633,   636,   638,   642,
+     644,   649,   654,   658,   665,   669,   674,   679,   686,   690,
+     692,   696,   697,   701,   705,   709,   713,   717,   721,   725,
+     729,   733,   737,   741,   747,   751,   752,   754,   755,   757,
+     759,   761,   763,   766,   768,   771,   773,   776,   779,   783,
+     784,   786,   789,   791,   794,   796,   799,   802,   803,   806,
+     811,   813,   818,   824,   826,   831,   836,   842,   843,   845,
+     847,   849,   850,   852,   856,   860,   863,   865,   867,   869,
+     871,   873,   875,   877,   879,   881,   883,   885,   887,   889,
+     891,   893,   895,   897,   899,   901,   903,   905,   907,   909,
+     911,   913,   915,   917,   919,   921,   922,   925,   930,   935,
+     936,   939,   940,   943,   946,   948,   950,   954,   957,   961,
+     966,   968,   971,   972,   975,   979,   982,   985,   988,   989,
+     992,   996,   999,  1003,  1006,  1010,  1014,  1019,  1021,  1024,
+    1027,  1031,  1034,  1037,  1038,  1040,  1042,  1045,  1048,  1052,
+    1055,  1057,  1060,  1062,  1065,  1068,  1071,  1074,  1075,  1077,
+    1081,  1087,  1090,  1094,  1097,  1098,  1100,  1103,  1106,  1109,
+    1112,  1117,  1123,  1129,  1133,  1135,  1138,  1142,  1146,  1149,
+    1152,  1156,  1160,  1161,  1164,  1166,  1170,  1174,  1178,  1179,
+    1181,  1183,  1187,  1190,  1194,  1197,  1200,  1202,  1203,  1206,
+    1211,  1214,  1216,  1220,  1223,  1228,  1232,  1238,  1240,  1242,
+    1244,  1246,  1248,  1250,  1252,  1254,  1256,  1258,  1260,  1262,
+    1264,  1266,  1268,  1270,  1272,  1274,  1276,  1278,  1280,  1282,
+    1284,  1286,  1288,  1290,  1292,  1294
 };
 
 /* YYRHS -- A `-1'-separated list of the rules' RHS.  */
 static const yytype_int16 yyrhs[] =
 {
-     183,     0,    -1,   184,    -1,     1,    -1,   185,    -1,   184,
-     185,    -1,   186,    50,    -1,   186,   171,    -1,   186,   171,
-      50,    -1,   171,    -1,   171,    50,    -1,    56,   186,   171,
-      -1,   187,    -1,   246,   187,    -1,   188,    -1,   237,    -1,
-     242,    -1,   238,    -1,   239,    -1,   240,    -1,   189,    -1,
-     307,    -1,   272,    -1,   208,    -1,   273,    -1,   311,    -1,
-     312,    -1,   220,    -1,   221,    -1,   222,    -1,   223,    -1,
-     224,    -1,   225,    -1,   226,    -1,   190,    -1,   199,    -1,
-     241,    -1,   313,    -1,   260,   204,   203,    -1,   201,   188,
-      -1,   201,   237,    -1,   201,   239,    -1,   201,   240,    -1,
-     201,   238,    -1,   201,   241,    -1,   191,    -1,   200,    -1,
-      14,   192,    -1,    15,    -1,    16,    -1,    17,    -1,    18,
-      -1,    -1,    19,    -1,    64,    -1,    21,    64,    -1,   188,
-      -1,   237,    -1,   238,    -1,   240,    -1,   239,    -1,   313,
-      -1,   226,    -1,   241,    -1,   172,    85,    -1,   194,   173,
-     172,    85,    -1,   172,    85,    -1,   195,    -1,   193,    -1,
-      29,   318,    27,    -1,    30,   318,    -1,    30,   318,    31,
-      -1,   197,   196,    -1,   198,   194,    -1,    15,    29,   318,
-      -1,    32,    29,   318,    -1,    22,    -1,    23,    -1,    24,
-      -1,    25,    -1,    53,    -1,    26,    -1,    54,    -1,    55,
-      -1,   202,    -1,   202,    85,    -1,    86,    -1,    87,    -1,
-      88,    -1,    -1,    27,   233,    -1,    -1,   230,    -1,     5,
-      80,    -1,     5,    80,   204,    27,   233,    -1,     5,    80,
-     230,    -1,   161,    -1,   161,    71,   318,    -1,    12,    81,
-      -1,    12,    81,   230,    -1,   205,    -1,   206,    -1,   207,
-      -1,   218,    -1,   219,    -1,   209,    -1,   217,    -1,   216,
-      -1,   159,    -1,   156,    -1,   214,    -1,   215,    -1,   210,
-      -1,   211,    -1,   160,   227,    -1,   202,   227,    -1,   162,
-      27,    85,    -1,   162,    27,    85,    27,    85,    -1,   163,
-      27,    85,    -1,   163,    27,    85,    27,    85,    -1,    -1,
-     133,    85,    -1,    -1,    27,    85,    -1,   157,   213,   212,
-      -1,   158,   213,   212,    -1,    11,    19,    20,   213,   212,
-      -1,   155,    -1,   153,    -1,   153,    27,    85,    -1,   153,
-      72,   154,   174,    85,    -1,   153,    27,    85,    72,   154,
-     174,    85,    -1,    82,    -1,    83,   174,   117,    -1,    92,
-      -1,    93,    -1,    94,    -1,    95,    -1,    96,    -1,    97,
-      -1,    13,   227,   175,   228,   176,    -1,   318,    -1,   318,
-     177,   318,    -1,   318,   177,   318,   177,   318,    -1,    -1,
-     229,    -1,   228,   173,   229,    -1,    85,    -1,   117,    -1,
-     100,    -1,   172,    85,    -1,   172,   172,    85,    -1,    49,
-      -1,   231,    -1,   230,   231,    -1,   232,    -1,   175,   176,
-      -1,   175,   188,   176,    -1,   175,   230,   176,    -1,   315,
-      -1,   234,    -1,   188,    -1,    -1,   175,   236,   176,    -1,
-      85,    -1,   236,   173,    85,    -1,   263,   316,   314,    -1,
-     263,   316,   314,   235,   234,    -1,   265,   233,    -1,   261,
-     233,    -1,   262,   271,    27,   233,    -1,   266,   316,    -1,
-      12,   243,    -1,   244,   173,   243,    -1,   244,    -1,   172,
-      85,   174,   245,    -1,   172,   172,    98,    85,   174,   245,
-      -1,    98,    85,   174,   245,    -1,   172,   172,    85,   174,
-     245,    -1,   172,   172,    99,    85,   174,   245,    -1,    99,
-      85,   174,   245,    -1,    85,   174,   245,    -1,    85,    -1,
-     117,    -1,   100,    -1,   247,    -1,   247,   246,    -1,    40,
-     248,    41,    -1,    40,   105,   256,   255,    41,    -1,    40,
-     102,   174,   259,   255,    41,    -1,    40,   113,   174,   259,
-     255,    41,    -1,    40,   101,   174,   259,   255,    41,    -1,
-      40,   103,   174,   259,   255,    41,    -1,    40,   104,   174,
-     259,   255,    41,    -1,    40,    84,    85,   174,   258,   255,
-      41,    -1,    40,   108,   174,   257,   255,    41,    -1,    40,
-     109,   174,   257,   255,    41,    -1,    40,   106,   174,   259,
-     255,    41,    -1,    40,   107,   174,   259,   255,    41,    -1,
-      40,   110,   111,   174,   178,   250,   179,    41,    -1,    40,
-     110,   112,   174,   178,   252,   179,    41,    -1,    -1,   248,
-     249,    -1,    42,    85,    -1,    43,    85,    -1,    85,    -1,
-     251,   173,   250,    -1,   251,    -1,   101,   175,   259,   176,
-      -1,   113,   175,   259,   176,    -1,   114,   175,   176,    -1,
-     114,   175,   115,   174,   259,   176,    -1,   116,   175,   253,
-     176,    -1,    68,   175,   257,   176,    -1,    68,   175,   257,
-     180,   257,   176,    -1,   254,   173,   253,    -1,   254,    -1,
-      85,   174,   259,    -1,    -1,   255,   173,   256,    -1,   101,
-     174,   259,    -1,   102,   174,   259,    -1,   113,   174,   259,
-      -1,   103,   174,   259,    -1,   104,   174,   259,    -1,   108,
-     174,   257,    -1,   109,   174,   257,    -1,   106,   174,   259,
-      -1,   107,   174,   259,    -1,    85,   177,    85,   174,   258,
-      -1,    85,   174,   258,    -1,    -1,   259,    -1,    -1,   259,
-      -1,    85,    -1,    89,    -1,     5,    -1,    33,   267,    -1,
-       8,    -1,    34,   267,    -1,     6,    -1,    35,   267,    -1,
-       7,   264,    -1,    36,   267,   264,    -1,    -1,   128,    -1,
-     128,    52,    -1,     9,    -1,    37,   267,    -1,    10,    -1,
-      38,   267,    -1,   268,    39,    -1,    -1,   269,   268,    -1,
-      44,   175,   117,   176,    -1,   117,    -1,    45,   175,   270,
-     176,    -1,    64,   175,    85,    85,   176,    -1,    85,    -1,
-      85,   175,   117,   176,    -1,    85,   175,    85,   176,    -1,
-      85,   175,    85,    85,   176,    -1,    -1,    46,    -1,    47,
-      -1,    48,    -1,    -1,    69,    -1,    11,   306,    66,    -1,
-      11,   306,    67,    -1,    11,    68,    -1,   277,    -1,   279,
-      -1,   280,    -1,   283,    -1,   281,    -1,   285,    -1,   286,
-      -1,   287,    -1,   288,    -1,   290,    -1,   291,    -1,   292,
-      -1,   293,    -1,   294,    -1,   296,    -1,   297,    -1,   299,
-      -1,   300,    -1,   301,    -1,   302,    -1,   303,    -1,   304,
-      -1,   305,    -1,    -1,   121,   117,    -1,   121,   117,   173,
-     117,    -1,   121,   117,   122,   117,    -1,    -1,   133,    85,
-      -1,    -1,   133,    85,    -1,   118,   278,    -1,   119,    -1,
-     120,    -1,   120,   117,   274,    -1,   130,   275,    -1,   130,
-     131,   275,    -1,   130,   131,   132,   275,    -1,   123,    -1,
-     125,   282,    -1,    -1,   126,    85,    -1,   126,   133,    85,
-      -1,   126,   128,    -1,   133,    85,    -1,   124,   284,    -1,
-      -1,   126,   275,    -1,   126,   117,   275,    -1,   129,   275,
-      -1,   129,   117,   275,    -1,   127,   275,    -1,   127,   117,
-     275,    -1,   127,   128,   275,    -1,   127,   128,   117,   275,
-      -1,   134,    -1,   134,   117,    -1,   135,   275,    -1,   135,
-     152,   275,    -1,   136,   275,    -1,   137,   289,    -1,    -1,
-      85,    -1,   128,    -1,   128,    85,    -1,   138,   276,    -1,
-     138,   140,   276,    -1,   138,   139,    -1,   141,    -1,   141,
-      85,    -1,   142,    -1,   142,   143,    -1,   144,   274,    -1,
-     144,   117,    -1,   145,   295,    -1,    -1,   117,    -1,   117,
-     173,   117,    -1,   117,   173,   117,   173,    85,    -1,   146,
-     275,    -1,   146,   147,   275,    -1,   148,   298,    -1,    -1,
-     117,    -1,   117,   117,    -1,   149,   150,    -1,   149,   151,
-      -1,   149,   152,    -1,   164,    12,    85,   174,    -1,   164,
-      12,    85,   174,    85,    -1,   164,    12,    85,   174,   117,
-      -1,   165,     6,    85,    -1,   166,    -1,   167,   117,    -1,
-     167,   117,   117,    -1,   168,    85,   117,    -1,   168,    85,
-      -1,   169,   117,    -1,   169,   120,   117,    -1,   169,   170,
-     117,    -1,    -1,    70,   181,    -1,    56,    -1,    57,    58,
-     308,    -1,    65,    56,    85,    -1,    65,    57,    85,    -1,
-      -1,   309,    -1,   310,    -1,   309,   173,   310,    -1,    59,
-      60,    -1,    61,    62,    63,    -1,    90,    85,    -1,    91,
-      85,    -1,    85,    -1,    -1,   139,    85,    -1,   139,   175,
-      85,   176,    -1,   316,   314,    -1,   318,    -1,   318,   177,
-     318,    -1,   318,   318,    -1,   318,   177,   318,   318,    -1,
-     318,    71,   318,    -1,   318,   177,   318,    71,   318,    -1,
-      57,    -1,    65,    -1,    56,    -1,    58,    -1,    62,    -1,
-      67,    -1,    66,    -1,    70,    -1,    69,    -1,    68,    -1,
-     119,    -1,   120,    -1,   122,    -1,   126,    -1,   127,    -1,
-     129,    -1,   131,    -1,   132,    -1,   143,    -1,   147,    -1,
-     151,    -1,   152,    -1,   170,    -1,   101,    -1,   102,    -1,
-     103,    -1,   104,    -1,   154,    -1,   105,    -1,   106,    -1,
-     107,    -1,   108,    -1,   109,    -1,   110,    -1,   111,    -1,
-     112,    -1,   113,    -1,   115,    -1,   114,    -1,   116,    -1,
-      64,    -1,    53,    -1,    54,    -1,    55,    -1,    85,    -1,
-     317,    -1
+     191,     0,    -1,   192,    -1,     1,    -1,   193,    -1,   192,
+     193,    -1,   194,    50,    -1,   194,   179,    -1,   194,   179,
+      50,    -1,   179,    -1,   179,    50,    -1,    56,   194,   179,
+      -1,   195,    -1,   254,   195,    -1,   196,    -1,   245,    -1,
+     250,    -1,   246,    -1,   247,    -1,   248,    -1,   197,    -1,
+     316,    -1,   280,    -1,   215,    -1,   281,    -1,   320,    -1,
+     321,    -1,   228,    -1,   229,    -1,   230,    -1,   231,    -1,
+     232,    -1,   233,    -1,   234,    -1,   198,    -1,   207,    -1,
+     249,    -1,   282,    -1,   322,    -1,   268,   212,   211,    -1,
+     209,   196,    -1,   209,   245,    -1,   209,   247,    -1,   209,
+     248,    -1,   209,   246,    -1,   209,   249,    -1,   199,    -1,
+     208,    -1,    14,   200,    -1,    15,    -1,    16,    -1,    17,
+      -1,    18,    -1,    -1,    19,    -1,    64,    -1,    21,    64,
+      -1,   196,    -1,   245,    -1,   246,    -1,   248,    -1,   247,
+      -1,   322,    -1,   234,    -1,   249,    -1,   180,    84,    -1,
+     202,   181,   180,    84,    -1,   180,    84,    -1,   203,    -1,
+     201,    -1,    29,   327,    27,    -1,    30,   327,    -1,    30,
+     327,    31,    -1,   205,   204,    -1,   206,   202,    -1,    15,
+      29,   327,    -1,    32,    29,   327,    -1,    22,    -1,    23,
+      -1,    24,    -1,    25,    -1,    53,    -1,    26,    -1,    54,
+      -1,    55,    -1,   210,    -1,   210,    84,    -1,    85,    -1,
+      86,    -1,    87,    -1,    -1,    27,   241,    -1,    -1,   238,
+      -1,     5,    80,    -1,     5,    80,   212,    27,   241,    -1,
+       5,    80,   238,    -1,   163,    -1,   163,    71,   327,    -1,
+     213,    -1,   214,    -1,   226,    -1,   227,    -1,   216,    -1,
+     224,    -1,   225,    -1,   223,    -1,   161,    -1,   158,    -1,
+     221,    -1,   222,    -1,   217,    -1,   218,    -1,   162,   235,
+      -1,   210,   327,    -1,   164,    27,    84,    -1,   164,    27,
+      84,    27,    84,    -1,   165,    27,    84,    -1,   165,    27,
+      84,    27,    84,    -1,    -1,   134,    84,    -1,    -1,    27,
+      84,    -1,   159,   220,   219,    -1,   160,   220,   219,    -1,
+      11,    19,    20,   220,   219,    -1,   157,    -1,   154,    -1,
+     154,    27,    84,    -1,   154,    72,   156,   182,    84,    -1,
+     154,    27,    84,    72,   156,   182,    84,    -1,   155,    -1,
+     155,    27,    84,    -1,    81,    -1,    82,   182,   118,    -1,
+      91,    -1,    92,    -1,    93,    -1,    94,    -1,    95,    -1,
+      96,    -1,    13,   235,   183,   236,   184,    -1,   327,    -1,
+     327,   185,   327,    -1,   327,   185,   327,   185,   327,    -1,
+      -1,   237,    -1,   236,   181,   237,    -1,    84,    -1,   118,
+      -1,    99,    -1,   180,    84,    -1,   180,   180,    84,    -1,
+      49,    -1,   239,    -1,   238,   239,    -1,   240,    -1,   183,
+     184,    -1,   183,   196,   184,    -1,   183,   238,   184,    -1,
+     324,    -1,   242,    -1,   196,    -1,    -1,   183,   244,   184,
+      -1,    84,    -1,   244,   181,    84,    -1,   271,   325,   323,
+      -1,   271,   325,   323,   243,   242,    -1,   273,   241,    -1,
+     269,   241,    -1,   270,   279,    27,   241,    -1,   274,   325,
+      -1,    12,   251,    -1,   252,   181,   251,    -1,   252,    -1,
+     180,    84,   182,   253,    -1,   180,   180,    97,    84,   182,
+     253,    -1,    97,    84,   182,   253,    -1,   180,   180,    84,
+     182,   253,    -1,   180,   180,    98,    84,   182,   253,    -1,
+      98,    84,   182,   253,    -1,    84,   182,   253,    -1,    84,
+      -1,   118,    -1,    99,    -1,   255,    -1,   255,   254,    -1,
+      40,   256,    41,    -1,    40,   104,   264,   263,    41,    -1,
+      40,   101,   182,   267,   263,    41,    -1,    40,   113,   182,
+     267,   263,    41,    -1,    40,   100,   182,   267,   263,    41,
+      -1,    40,   102,   182,   267,   263,    41,    -1,    40,   103,
+     182,   267,   263,    41,    -1,    40,    83,    84,   182,   266,
+     263,    41,    -1,    40,   107,   182,   265,   263,    41,    -1,
+      40,   108,   182,   265,   263,    41,    -1,    40,   105,   182,
+     267,   263,    41,    -1,    40,   106,   182,   267,   263,    41,
+      -1,    40,   110,   111,   182,   186,   258,   187,    41,    -1,
+      40,   110,   112,   182,   186,   260,   187,    41,    -1,    40,
+     109,   182,   267,   263,    41,    -1,    -1,   256,   257,    -1,
+      42,    84,    -1,    43,    84,    -1,    84,    -1,   259,   181,
+     258,    -1,   259,    -1,   100,   183,   267,   184,    -1,   113,
+     183,   267,   184,    -1,   114,   183,   184,    -1,   114,   183,
+     116,   182,   267,   184,    -1,   115,   183,   184,    -1,   117,
+     183,   261,   184,    -1,    68,   183,   265,   184,    -1,    68,
+     183,   265,   188,   265,   184,    -1,   262,   181,   261,    -1,
+     262,    -1,    84,   182,   267,    -1,    -1,   263,   181,   264,
+      -1,   100,   182,   267,    -1,   101,   182,   267,    -1,   113,
+     182,   267,    -1,   102,   182,   267,    -1,   103,   182,   267,
+      -1,   107,   182,   265,    -1,   108,   182,   265,    -1,   105,
+     182,   267,    -1,   106,   182,   267,    -1,   109,   182,   267,
+      -1,    84,   185,    84,   182,   266,    -1,    84,   182,   266,
+      -1,    -1,   267,    -1,    -1,   267,    -1,    84,    -1,    88,
+      -1,     5,    -1,    33,   275,    -1,     8,    -1,    34,   275,
+      -1,     6,    -1,    35,   275,    -1,     7,   272,    -1,    36,
+     275,   272,    -1,    -1,   129,    -1,   129,    52,    -1,     9,
+      -1,    37,   275,    -1,    10,    -1,    38,   275,    -1,   276,
+      39,    -1,    -1,   277,   276,    -1,    44,   183,   118,   184,
+      -1,   118,    -1,    45,   183,   278,   184,    -1,    64,   183,
+      84,    84,   184,    -1,    84,    -1,    84,   183,   118,   184,
+      -1,    84,   183,    84,   184,    -1,    84,   183,    84,    84,
+     184,    -1,    -1,    46,    -1,    47,    -1,    48,    -1,    -1,
+      69,    -1,    11,   315,    66,    -1,    11,   315,    67,    -1,
+      11,    68,    -1,   286,    -1,   288,    -1,   289,    -1,   292,
+      -1,   290,    -1,   294,    -1,   295,    -1,   296,    -1,   297,
+      -1,   299,    -1,   300,    -1,   301,    -1,   302,    -1,   303,
+      -1,   305,    -1,   306,    -1,   308,    -1,   309,    -1,   310,
+      -1,   311,    -1,   312,    -1,   313,    -1,   314,    -1,   173,
+      -1,   174,    -1,   175,    -1,   176,    -1,   177,    -1,   178,
+      -1,    -1,   122,   118,    -1,   122,   118,   181,   118,    -1,
+     122,   118,   123,   118,    -1,    -1,   134,    84,    -1,    -1,
+     134,    84,    -1,   119,   287,    -1,   120,    -1,   121,    -1,
+     121,   118,   283,    -1,   131,   284,    -1,   131,   132,   284,
+      -1,   131,   132,   133,   284,    -1,   124,    -1,   126,   291,
+      -1,    -1,   127,    84,    -1,   127,   134,    84,    -1,   127,
+     129,    -1,   134,    84,    -1,   125,   293,    -1,    -1,   127,
+     284,    -1,   127,   118,   284,    -1,   130,   284,    -1,   130,
+     118,   284,    -1,   128,   284,    -1,   128,   118,   284,    -1,
+     128,   129,   284,    -1,   128,   129,   118,   284,    -1,   135,
+      -1,   135,   118,    -1,   136,   284,    -1,   136,   153,   284,
+      -1,   137,   284,    -1,   138,   298,    -1,    -1,    84,    -1,
+     129,    -1,   129,    84,    -1,   139,   285,    -1,   139,   141,
+     285,    -1,   139,   140,    -1,   142,    -1,   142,    84,    -1,
+     143,    -1,   143,   144,    -1,   145,   283,    -1,   145,   118,
+      -1,   146,   304,    -1,    -1,   118,    -1,   118,   181,   118,
+      -1,   118,   181,   118,   181,    84,    -1,   147,   284,    -1,
+     147,   148,   284,    -1,   149,   307,    -1,    -1,   118,    -1,
+     118,   118,    -1,   150,   151,    -1,   150,   152,    -1,   150,
+     153,    -1,   166,    12,    84,   182,    -1,   166,    12,    84,
+     182,    84,    -1,   166,    12,    84,   182,   118,    -1,   167,
+       6,    84,    -1,   168,    -1,   169,   118,    -1,   169,   118,
+     118,    -1,   170,    84,   118,    -1,   170,    84,    -1,   171,
+     118,    -1,   171,   121,   118,    -1,   171,   172,   118,    -1,
+      -1,    70,   189,    -1,    56,    -1,    57,    58,   317,    -1,
+      65,    56,    84,    -1,    65,    57,    84,    -1,    -1,   318,
+      -1,   319,    -1,   318,   181,   319,    -1,    59,    60,    -1,
+      61,    62,    63,    -1,    89,    84,    -1,    90,    84,    -1,
+      84,    -1,    -1,   140,    84,    -1,   140,   183,    84,   184,
+      -1,   325,   323,    -1,   327,    -1,   327,   185,   327,    -1,
+     327,   327,    -1,   327,   185,   327,   327,    -1,   327,    71,
+     327,    -1,   327,   185,   327,    71,   327,    -1,    57,    -1,
+      65,    -1,    56,    -1,    58,    -1,    62,    -1,    67,    -1,
+      66,    -1,    70,    -1,    69,    -1,    68,    -1,   120,    -1,
+     121,    -1,   123,    -1,   127,    -1,   128,    -1,   130,    -1,
+     132,    -1,   133,    -1,   144,    -1,   148,    -1,   152,    -1,
+     153,    -1,   172,    -1,   156,    -1,    53,    -1,    54,    -1,
+      55,    -1,    84,    -1,   326,    -1
 };
 
 /* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
 static const yytype_uint16 yyrline[] =
 {
-       0,   336,   336,   337,   339,   340,   342,   343,   344,   345,
-     346,   347,   349,   350,   352,   353,   354,   355,   356,   357,
-     358,   359,   360,   361,   362,   363,   364,   365,   366,   367,
-     368,   369,   370,   371,   372,   373,   374,   375,   377,   379,
-     380,   381,   382,   383,   384,   386,   387,   389,   390,   391,
-     392,   393,   395,   396,   397,   398,   400,   401,   402,   403,
-     404,   405,   406,   407,   409,   416,   424,   432,   433,   436,
-     442,   447,   453,   456,   459,   464,   470,   471,   472,   473,
-     474,   475,   476,   477,   479,   480,   482,   483,   484,   486,
-     487,   489,   490,   492,   493,   494,   496,   497,   499,   500,
-     502,   503,   504,   505,   506,   507,   509,   510,   511,   512,
-     513,   514,   515,   516,   517,   518,   524,   529,   536,   541,
-     548,   549,   551,   552,   554,   558,   563,   568,   570,   571,
-     576,   581,   588,   591,   597,   598,   599,   600,   601,   602,
-     605,   607,   611,   616,   624,   627,   632,   637,   642,   647,
-     652,   657,   662,   670,   671,   673,   675,   676,   677,   679,
-     680,   682,   684,   685,   687,   688,   690,   694,   695,   696,
-     697,   698,   703,   705,   706,   708,   712,   716,   720,   724,
-     728,   732,   736,   741,   746,   752,   753,   755,   756,   757,
-     758,   759,   760,   761,   762,   768,   769,   770,   771,   772,
-     773,   775,   776,   778,   779,   780,   782,   783,   785,   790,
-     795,   796,   797,   799,   800,   802,   803,   805,   813,   814,
-     816,   817,   818,   819,   820,   821,   822,   823,   824,   825,
-     831,   833,   834,   836,   837,   839,   840,   842,   843,   844,
-     845,   846,   847,   848,   849,   851,   852,   853,   855,   856,
-     857,   858,   859,   860,   861,   863,   864,   865,   866,   871,
-     872,   873,   874,   876,   877,   878,   879,   881,   882,   885,
-     886,   887,   890,   891,   892,   893,   894,   895,   896,   897,
-     898,   899,   900,   901,   902,   903,   904,   905,   906,   907,
-     908,   909,   910,   911,   912,   917,   919,   923,   928,   936,
-     937,   941,   942,   945,   947,   948,   949,   953,   954,   955,
-     959,   961,   963,   964,   965,   966,   967,   970,   972,   973,
-     974,   975,   976,   977,   978,   979,   980,   984,   985,   989,
-     990,   995,   998,  1000,  1001,  1002,  1003,  1007,  1008,  1009,
-    1013,  1014,  1018,  1019,  1023,  1024,  1027,  1029,  1030,  1031,
-    1032,  1036,  1037,  1040,  1042,  1043,  1044,  1048,  1049,  1050,
-    1054,  1055,  1056,  1060,  1064,  1068,  1069,  1073,  1074,  1078,
-    1079,  1080,  1083,  1084,  1087,  1091,  1092,  1093,  1095,  1096,
-    1098,  1099,  1102,  1103,  1106,  1112,  1115,  1117,  1118,  1119,
-    1121,  1126,  1129,  1133,  1137,  1142,  1146,  1152,  1153,  1154,
-    1155,  1156,  1157,  1158,  1159,  1160,  1161,  1162,  1163,  1164,
-    1165,  1166,  1167,  1168,  1169,  1170,  1171,  1172,  1173,  1174,
-    1175,  1176,  1177,  1178,  1179,  1180,  1181,  1182,  1183,  1184,
-    1185,  1186,  1187,  1188,  1189,  1190,  1191,  1192,  1193,  1194,
-    1195,  1197,  1198
+       0,   334,   334,   335,   337,   338,   340,   341,   342,   343,
+     344,   345,   347,   348,   350,   351,   352,   353,   354,   355,
+     356,   357,   358,   359,   360,   361,   362,   363,   364,   365,
+     366,   367,   368,   369,   370,   371,   372,   373,   374,   376,
+     378,   379,   380,   381,   382,   383,   385,   386,   388,   389,
+     390,   391,   392,   394,   395,   396,   397,   399,   400,   401,
+     402,   403,   404,   405,   406,   408,   415,   423,   431,   432,
+     435,   441,   446,   452,   455,   458,   463,   469,   470,   471,
+     472,   473,   474,   475,   476,   478,   479,   481,   482,   483,
+     485,   486,   488,   489,   491,   492,   493,   495,   496,   498,
+     499,   500,   501,   502,   504,   505,   506,   507,   508,   509,
+     510,   511,   512,   513,   514,   521,   526,   533,   538,   545,
+     546,   548,   549,   551,   555,   560,   565,   567,   568,   573,
+     578,   585,   586,   592,   595,   601,   602,   603,   604,   605,
+     606,   609,   611,   615,   620,   628,   631,   636,   641,   646,
+     651,   656,   661,   666,   674,   675,   677,   679,   680,   681,
+     683,   684,   686,   688,   689,   691,   692,   694,   698,   699,
+     700,   701,   702,   707,   709,   710,   712,   716,   720,   724,
+     728,   732,   736,   740,   745,   750,   756,   757,   759,   760,
+     761,   762,   763,   764,   765,   766,   772,   773,   774,   775,
+     776,   777,   778,   779,   780,   782,   783,   784,   786,   787,
+     789,   794,   799,   800,   801,   802,   804,   805,   807,   808,
+     810,   818,   819,   821,   822,   823,   824,   825,   826,   827,
+     828,   829,   830,   831,   837,   839,   840,   842,   843,   845,
+     846,   848,   849,   850,   851,   852,   853,   854,   855,   857,
+     858,   859,   861,   862,   863,   864,   865,   866,   867,   869,
+     870,   871,   872,   877,   878,   879,   880,   882,   883,   884,
+     885,   887,   888,   891,   892,   893,   896,   897,   898,   899,
+     900,   901,   902,   903,   904,   905,   906,   907,   908,   909,
+     910,   911,   912,   913,   914,   915,   916,   917,   918,   920,
+     921,   922,   923,   924,   925,   930,   932,   936,   941,   949,
+     950,   954,   955,   958,   960,   961,   962,   966,   967,   968,
+     972,   974,   976,   977,   978,   979,   980,   983,   985,   986,
+     987,   988,   989,   990,   991,   992,   993,   997,   998,  1002,
+    1003,  1008,  1011,  1013,  1014,  1015,  1016,  1020,  1021,  1022,
+    1026,  1027,  1031,  1032,  1036,  1037,  1040,  1042,  1043,  1044,
+    1045,  1049,  1050,  1053,  1055,  1056,  1057,  1061,  1062,  1063,
+    1067,  1068,  1069,  1073,  1077,  1081,  1082,  1086,  1087,  1091,
+    1092,  1093,  1096,  1097,  1100,  1104,  1105,  1106,  1108,  1109,
+    1111,  1112,  1115,  1116,  1119,  1125,  1128,  1130,  1131,  1132,
+    1134,  1139,  1142,  1146,  1150,  1155,  1159,  1165,  1166,  1167,
+    1168,  1169,  1170,  1171,  1172,  1173,  1174,  1175,  1176,  1177,
+    1178,  1179,  1180,  1181,  1182,  1183,  1184,  1185,  1186,  1187,
+    1188,  1189,  1190,  1191,  1193,  1194
 };
 #endif
 
@@ -1137,26 +1140,29 @@ static const char *const yytname[] =
   "ONLY", "WITH", "CONSISTENT", "SNAPSHOT", "INDEX", "XA", "WARNINGS",
   "ERRORS", "TRACE", "QUICK", "COUNT", "AS", "WHERE", "VALUES", "ORDER",
   "GROUP", "HAVING", "INTO", "UNION", "FOR", "TX_READ_ONLY",
-  "AUTOCOMMIT_0", "SELECT_OBPROXY_ROUTE_ADDR", "SET_OBPROXY_ROUTE_ADDR",
-  "NAME_OB_DOT", "NAME_OB", "EXPLAIN", "DESC", "DESCRIBE", "NAME_STR",
-  "USE", "HELP", "SET_NAMES", "SET_CHARSET", "SET_PASSWORD", "SET_DEFAULT",
+  "SELECT_OBPROXY_ROUTE_ADDR", "SET_OBPROXY_ROUTE_ADDR", "NAME_OB_DOT",
+  "NAME_OB", "EXPLAIN", "DESC", "DESCRIBE", "NAME_STR", "USE", "HELP",
+  "SET_NAMES", "SET_CHARSET", "SET_PASSWORD", "SET_DEFAULT",
   "SET_OB_READ_CONSISTENCY", "SET_TX_READ_ONLY", "GLOBAL", "SESSION",
   "NUMBER_VAL", "GROUP_ID", "TABLE_ID", "ELASTIC_ID", "TESTLOAD",
   "ODP_COMMENT", "TNT_ID", "DISASTER_STATUS", "TRACE_ID", "RPC_ID",
-  "DBP_COMMENT", "ROUTE_TAG", "SYS_TAG", "TABLE_NAME", "SCAN_ALL",
-  "PARALL", "SHARD_KEY", "INT_NUM", "SHOW_PROXYNET", "THREAD",
-  "CONNECTION", "LIMIT", "OFFSET", "SHOW_PROCESSLIST", "SHOW_PROXYSESSION",
-  "SHOW_GLOBALSESSION", "ATTRIBUTE", "VARIABLES", "ALL", "STAT",
-  "SHOW_PROXYCONFIG", "DIFF", "USER", "LIKE", "SHOW_PROXYSM",
-  "SHOW_PROXYCLUSTER", "SHOW_PROXYRESOURCE", "SHOW_PROXYCONGESTION",
-  "SHOW_PROXYROUTE", "PARTITION", "ROUTINE", "SHOW_PROXYVIP",
-  "SHOW_PROXYMEMORY", "OBJPOOL", "SHOW_SQLAUDIT", "SHOW_WARNLOG",
-  "SHOW_PROXYSTAT", "REFRESH", "SHOW_PROXYTRACE", "SHOW_PROXYINFO",
-  "BINARY", "UPGRADE", "IDC", "SHOW_TOPOLOGY", "GROUP_NAME",
-  "SHOW_DB_VERSION", "SHOW_DATABASES", "SHOW_TABLES", "SHOW_FULL_TABLES",
-  "SELECT_DATABASE", "SHOW_CREATE_TABLE", "SELECT_PROXY_VERSION",
-  "SHOW_COLUMNS", "SHOW_INDEX", "ALTER_PROXYCONFIG", "ALTER_PROXYRESOURCE",
-  "PING_PROXY", "KILL_PROXYSESSION", "KILL_GLOBALSESSION", "KILL", "QUERY",
+  "TARGET_DB_SERVER", "DBP_COMMENT", "ROUTE_TAG", "SYS_TAG", "TABLE_NAME",
+  "SCAN_ALL", "STICKY_SESSION", "PARALL", "SHARD_KEY", "INT_NUM",
+  "SHOW_PROXYNET", "THREAD", "CONNECTION", "LIMIT", "OFFSET",
+  "SHOW_PROCESSLIST", "SHOW_PROXYSESSION", "SHOW_GLOBALSESSION",
+  "ATTRIBUTE", "VARIABLES", "ALL", "STAT", "SHOW_PROXYCONFIG", "DIFF",
+  "USER", "LIKE", "SHOW_PROXYSM", "SHOW_PROXYCLUSTER",
+  "SHOW_PROXYRESOURCE", "SHOW_PROXYCONGESTION", "SHOW_PROXYROUTE",
+  "PARTITION", "ROUTINE", "SHOW_PROXYVIP", "SHOW_PROXYMEMORY", "OBJPOOL",
+  "SHOW_SQLAUDIT", "SHOW_WARNLOG", "SHOW_PROXYSTAT", "REFRESH",
+  "SHOW_PROXYTRACE", "SHOW_PROXYINFO", "BINARY", "UPGRADE", "IDC",
+  "SHOW_ELASTIC_ID", "SHOW_TOPOLOGY", "GROUP_NAME", "SHOW_DB_VERSION",
+  "SHOW_DATABASES", "SHOW_TABLES", "SHOW_FULL_TABLES", "SELECT_DATABASE",
+  "SHOW_CREATE_TABLE", "SELECT_PROXY_VERSION", "SHOW_COLUMNS",
+  "SHOW_INDEX", "ALTER_PROXYCONFIG", "ALTER_PROXYRESOURCE", "PING_PROXY",
+  "KILL_PROXYSESSION", "KILL_GLOBALSESSION", "KILL", "QUERY",
+  "SHOW_MASTER_STATUS", "SHOW_BINARY_LOGS", "SHOW_BINLOG_EVENTS",
+  "PURGE_BINARY_LOGS", "RESET_MASTER", "SHOW_BINLOG_SERVER_FOR_TENANT",
   "';'", "'@'", "','", "'='", "'('", "')'", "'.'", "'{'", "'}'", "'#'",
   "'*'", "$accept", "root", "sql_stmts", "sql_stmt", "comment_stmt",
   "stmt", "select_stmt", "explain_stmt", "ddl_stmt", "mysql_ddl_stmt",
@@ -1165,10 +1171,10 @@ static const char *const yytname[] =
   "text_ps_prepare_stmt", "text_ps_execute_stmt", "text_ps_stmt",
   "oracle_ddl_stmt", "explain_or_desc_stmt", "explain_or_desc", "opt_from",
   "select_expr_list", "select_tx_read_only_stmt",
-  "select_proxy_version_stmt", "set_autocommit_0_stmt", "hooked_stmt",
-  "shard_special_stmt", "show_columns_stmt", "show_index_stmt",
-  "opt_show_like", "opt_show_from", "show_tables_stmt",
-  "show_table_status_stmt", "show_db_version_stmt", "show_es_id_stmt",
+  "select_proxy_version_stmt", "hooked_stmt", "shard_special_stmt",
+  "show_columns_stmt", "show_index_stmt", "opt_show_like", "opt_show_from",
+  "show_tables_stmt", "show_table_status_stmt", "show_db_version_stmt",
+  "show_es_id_stmt", "show_topology_stmt",
   "select_obproxy_route_addr_stmt", "set_obproxy_route_addr_stmt",
   "set_names_stmt", "set_charset_stmt", "set_password_stmt",
   "set_default_stmt", "set_ob_read_consistency_stmt",
@@ -1185,8 +1191,8 @@ static const char *const yytname[] =
   "insert_with_opt_hint", "insert_all_when", "replace_with_opt_hint",
   "merge_with_opt_hint", "hint_list_with_end", "hint_list", "hint",
   "opt_read_consistency", "opt_quick", "show_stmt", "icmd_stmt",
-  "opt_limit", "opt_like", "opt_large_like", "show_proxynet",
-  "opt_show_net", "show_proxyconfig", "show_processlist",
+  "binlog_stmt", "opt_limit", "opt_like", "opt_large_like",
+  "show_proxynet", "opt_show_net", "show_proxyconfig", "show_processlist",
   "show_globalsession", "opt_show_global_session", "show_proxysession",
   "opt_show_session", "show_proxysm", "show_proxycluster",
   "show_proxyresource", "show_proxycongestion", "opt_show_congestion",
@@ -1224,59 +1230,58 @@ static const yytype_uint16 yytoknum[] =
      395,   396,   397,   398,   399,   400,   401,   402,   403,   404,
      405,   406,   407,   408,   409,   410,   411,   412,   413,   414,
      415,   416,   417,   418,   419,   420,   421,   422,   423,   424,
-     425,    59,    64,    44,    61,    40,    41,    46,   123,   125,
-      35,    42
+     425,   426,   427,   428,   429,   430,   431,   432,   433,    59,
+      64,    44,    61,    40,    41,    46,   123,   125,    35,    42
 };
 # endif
 
 /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
 static const yytype_uint16 yyr1[] =
 {
-       0,   182,   183,   183,   184,   184,   185,   185,   185,   185,
-     185,   185,   186,   186,   187,   187,   187,   187,   187,   187,
-     187,   187,   187,   187,   187,   187,   187,   187,   187,   187,
-     187,   187,   187,   187,   187,   187,   187,   187,   188,   189,
-     189,   189,   189,   189,   189,   190,   190,   191,   191,   191,
-     191,   191,   192,   192,   192,   192,   193,   193,   193,   193,
-     193,   193,   193,   193,   194,   194,   195,   196,   196,   197,
-     198,   198,   199,   199,   199,   199,   200,   200,   200,   200,
-     200,   200,   200,   200,   201,   201,   202,   202,   202,   203,
-     203,   204,   204,   205,   205,   205,   206,   206,   207,   207,
-     208,   208,   208,   208,   208,   208,   209,   209,   209,   209,
-     209,   209,   209,   209,   209,   209,   210,   210,   211,   211,
-     212,   212,   213,   213,   214,   214,   215,   216,   217,   217,
-     217,   217,   218,   219,   220,   221,   222,   223,   224,   225,
-     226,   227,   227,   227,   228,   228,   228,   229,   229,   229,
-     229,   229,   229,   230,   230,   231,   232,   232,   232,   233,
-     233,   234,   235,   235,   236,   236,   237,   237,   238,   239,
-     240,   241,   242,   243,   243,   244,   244,   244,   244,   244,
-     244,   244,   245,   245,   245,   246,   246,   247,   247,   247,
-     247,   247,   247,   247,   247,   247,   247,   247,   247,   247,
-     247,   248,   248,   249,   249,   249,   250,   250,   251,   251,
-     251,   251,   251,   252,   252,   253,   253,   254,   255,   255,
-     256,   256,   256,   256,   256,   256,   256,   256,   256,   256,
-     256,   257,   257,   258,   258,   259,   259,   260,   260,   261,
-     261,   262,   262,   263,   263,   264,   264,   264,   265,   265,
-     266,   266,   267,   268,   268,   269,   269,   269,   269,   269,
-     269,   269,   269,   270,   270,   270,   270,   271,   271,   272,
-     272,   272,   273,   273,   273,   273,   273,   273,   273,   273,
-     273,   273,   273,   273,   273,   273,   273,   273,   273,   273,
-     273,   273,   273,   273,   273,   274,   274,   274,   274,   275,
-     275,   276,   276,   277,   278,   278,   278,   279,   279,   279,
-     280,   281,   282,   282,   282,   282,   282,   283,   284,   284,
-     284,   284,   284,   284,   284,   284,   284,   285,   285,   286,
-     286,   287,   288,   289,   289,   289,   289,   290,   290,   290,
-     291,   291,   292,   292,   293,   293,   294,   295,   295,   295,
-     295,   296,   296,   297,   298,   298,   298,   299,   299,   299,
-     300,   300,   300,   301,   302,   303,   303,   304,   304,   305,
-     305,   305,   306,   306,   307,   307,   307,   307,   308,   308,
-     309,   309,   310,   310,   311,   312,   313,   314,   314,   314,
-     315,   316,   316,   316,   316,   316,   316,   317,   317,   317,
-     317,   317,   317,   317,   317,   317,   317,   317,   317,   317,
-     317,   317,   317,   317,   317,   317,   317,   317,   317,   317,
-     317,   317,   317,   317,   317,   317,   317,   317,   317,   317,
-     317,   317,   317,   317,   317,   317,   317,   317,   317,   317,
-     317,   318,   318
+       0,   190,   191,   191,   192,   192,   193,   193,   193,   193,
+     193,   193,   194,   194,   195,   195,   195,   195,   195,   195,
+     195,   195,   195,   195,   195,   195,   195,   195,   195,   195,
+     195,   195,   195,   195,   195,   195,   195,   195,   195,   196,
+     197,   197,   197,   197,   197,   197,   198,   198,   199,   199,
+     199,   199,   199,   200,   200,   200,   200,   201,   201,   201,
+     201,   201,   201,   201,   201,   202,   202,   203,   204,   204,
+     205,   206,   206,   207,   207,   207,   207,   208,   208,   208,
+     208,   208,   208,   208,   208,   209,   209,   210,   210,   210,
+     211,   211,   212,   212,   213,   213,   213,   214,   214,   215,
+     215,   215,   215,   215,   216,   216,   216,   216,   216,   216,
+     216,   216,   216,   216,   216,   217,   217,   218,   218,   219,
+     219,   220,   220,   221,   221,   222,   223,   224,   224,   224,
+     224,   225,   225,   226,   227,   228,   229,   230,   231,   232,
+     233,   234,   235,   235,   235,   236,   236,   236,   237,   237,
+     237,   237,   237,   237,   238,   238,   239,   240,   240,   240,
+     241,   241,   242,   243,   243,   244,   244,   245,   245,   246,
+     247,   248,   249,   250,   251,   251,   252,   252,   252,   252,
+     252,   252,   252,   253,   253,   253,   254,   254,   255,   255,
+     255,   255,   255,   255,   255,   255,   255,   255,   255,   255,
+     255,   255,   255,   256,   256,   257,   257,   257,   258,   258,
+     259,   259,   259,   259,   259,   259,   260,   260,   261,   261,
+     262,   263,   263,   264,   264,   264,   264,   264,   264,   264,
+     264,   264,   264,   264,   264,   265,   265,   266,   266,   267,
+     267,   268,   268,   269,   269,   270,   270,   271,   271,   272,
+     272,   272,   273,   273,   274,   274,   275,   276,   276,   277,
+     277,   277,   277,   277,   277,   277,   277,   278,   278,   278,
+     278,   279,   279,   280,   280,   280,   281,   281,   281,   281,
+     281,   281,   281,   281,   281,   281,   281,   281,   281,   281,
+     281,   281,   281,   281,   281,   281,   281,   281,   281,   282,
+     282,   282,   282,   282,   282,   283,   283,   283,   283,   284,
+     284,   285,   285,   286,   287,   287,   287,   288,   288,   288,
+     289,   290,   291,   291,   291,   291,   291,   292,   293,   293,
+     293,   293,   293,   293,   293,   293,   293,   294,   294,   295,
+     295,   296,   297,   298,   298,   298,   298,   299,   299,   299,
+     300,   300,   301,   301,   302,   302,   303,   304,   304,   304,
+     304,   305,   305,   306,   307,   307,   307,   308,   308,   308,
+     309,   309,   309,   310,   311,   312,   312,   313,   313,   314,
+     314,   314,   315,   315,   316,   316,   316,   316,   317,   317,
+     318,   318,   319,   319,   320,   321,   322,   323,   323,   323,
+     324,   325,   325,   325,   325,   325,   325,   326,   326,   326,
+     326,   326,   326,   326,   326,   326,   326,   326,   326,   326,
+     326,   326,   326,   326,   326,   326,   326,   326,   326,   326,
+     326,   326,   326,   326,   327,   327
 };
 
 /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
@@ -1285,31 +1290,32 @@ static const yytype_uint8 yyr2[] =
        0,     2,     1,     1,     1,     2,     2,     2,     3,     1,
        2,     3,     1,     2,     1,     1,     1,     1,     1,     1,
        1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
-       1,     1,     1,     1,     1,     1,     1,     1,     3,     2,
-       2,     2,     2,     2,     2,     1,     1,     2,     1,     1,
-       1,     1,     0,     1,     1,     2,     1,     1,     1,     1,
-       1,     1,     1,     1,     2,     4,     2,     1,     1,     3,
-       2,     3,     2,     2,     3,     3,     1,     1,     1,     1,
-       1,     1,     1,     1,     1,     2,     1,     1,     1,     0,
-       2,     0,     1,     2,     5,     3,     1,     3,     2,     3,
+       1,     1,     1,     1,     1,     1,     1,     1,     1,     3,
+       2,     2,     2,     2,     2,     2,     1,     1,     2,     1,
+       1,     1,     1,     0,     1,     1,     2,     1,     1,     1,
+       1,     1,     1,     1,     1,     2,     4,     2,     1,     1,
+       3,     2,     3,     2,     2,     3,     3,     1,     1,     1,
+       1,     1,     1,     1,     1,     1,     2,     1,     1,     1,
+       0,     2,     0,     1,     2,     5,     3,     1,     3,     1,
+       1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
+       1,     1,     1,     2,     2,     3,     5,     3,     5,     0,
+       2,     0,     2,     3,     3,     5,     1,     1,     3,     5,
+       7,     1,     3,     1,     3,     1,     1,     1,     1,     1,
+       1,     5,     1,     3,     5,     0,     1,     3,     1,     1,
+       1,     2,     3,     1,     1,     2,     1,     2,     3,     3,
+       1,     1,     1,     0,     3,     1,     3,     3,     5,     2,
+       2,     4,     2,     2,     3,     1,     4,     6,     4,     5,
+       6,     4,     3,     1,     1,     1,     1,     2,     3,     5,
+       6,     6,     6,     6,     6,     7,     6,     6,     6,     6,
+       8,     8,     6,     0,     2,     2,     2,     1,     3,     1,
+       4,     4,     3,     6,     3,     4,     4,     6,     3,     1,
+       3,     0,     3,     3,     3,     3,     3,     3,     3,     3,
+       3,     3,     3,     5,     3,     0,     1,     0,     1,     1,
+       1,     1,     2,     1,     2,     1,     2,     2,     3,     0,
+       1,     2,     1,     2,     1,     2,     2,     0,     2,     4,
+       1,     4,     5,     1,     4,     4,     5,     0,     1,     1,
+       1,     0,     1,     3,     3,     2,     1,     1,     1,     1,
        1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
-       1,     1,     1,     1,     2,     2,     3,     5,     3,     5,
-       0,     2,     0,     2,     3,     3,     5,     1,     1,     3,
-       5,     7,     1,     3,     1,     1,     1,     1,     1,     1,
-       5,     1,     3,     5,     0,     1,     3,     1,     1,     1,
-       2,     3,     1,     1,     2,     1,     2,     3,     3,     1,
-       1,     1,     0,     3,     1,     3,     3,     5,     2,     2,
-       4,     2,     2,     3,     1,     4,     6,     4,     5,     6,
-       4,     3,     1,     1,     1,     1,     2,     3,     5,     6,
-       6,     6,     6,     6,     7,     6,     6,     6,     6,     8,
-       8,     0,     2,     2,     2,     1,     3,     1,     4,     4,
-       3,     6,     4,     4,     6,     3,     1,     3,     0,     3,
-       3,     3,     3,     3,     3,     3,     3,     3,     3,     5,
-       3,     0,     1,     0,     1,     1,     1,     1,     2,     1,
-       2,     1,     2,     2,     3,     0,     1,     2,     1,     2,
-       1,     2,     2,     0,     2,     4,     1,     4,     5,     1,
-       4,     4,     5,     0,     1,     1,     1,     0,     1,     3,
-       3,     2,     1,     1,     1,     1,     1,     1,     1,     1,
        1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
        1,     1,     1,     1,     1,     0,     2,     4,     4,     0,
        2,     0,     2,     2,     1,     1,     3,     2,     3,     4,
@@ -1324,9 +1330,7 @@ static const yytype_uint8 yyr2[] =
        2,     1,     3,     2,     4,     3,     5,     1,     1,     1,
        1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
        1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
-       1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
-       1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
-       1,     1,     1
+       1,     1,     1,     1,     1,     1
 };
 
 /* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
@@ -1334,532 +1338,486 @@ static const yytype_uint8 yyr2[] =
    means the default is an error.  */
 static const yytype_uint16 yydefact[] =
 {
-       0,     3,   237,   241,   245,   239,   248,   250,   372,     0,
-       0,    52,    48,    49,    50,    51,    76,    77,    78,    79,
-      81,     0,     0,     0,   253,   253,   253,   253,   253,   253,
-     201,    80,    82,    83,   374,     0,     0,   132,     0,   386,
-      86,    87,    88,     0,     0,   134,   135,   136,   137,   138,
-     139,     0,   310,   318,   312,   299,   327,   299,   299,   333,
-     301,   340,   342,   295,   347,   299,   354,     0,   128,   127,
-     109,   122,   122,   108,     0,    96,     0,     0,     0,     0,
-     364,     0,     0,     0,     9,     0,     2,     4,     0,    12,
-      14,    20,    34,    45,     0,     0,    35,    46,     0,    84,
-     100,   101,   102,    23,   105,   112,   113,   110,   111,   107,
-     106,   103,   104,    27,    28,    29,    30,    31,    32,    33,
-      15,    17,    18,    19,    36,    16,     0,   185,    91,     0,
-     267,     0,     0,     0,    22,    24,   272,   273,   274,   276,
-     275,   277,   278,   279,   280,   281,   282,   283,   284,   285,
-     286,   287,   288,   289,   290,   291,   292,   293,   294,    21,
-      25,    26,    37,    93,   246,   243,     0,   271,     0,     0,
-      98,     0,     0,     0,     0,   172,   174,   438,   439,   440,
-     399,   397,   400,   401,   437,   398,   403,   402,   406,   405,
-     404,   441,   420,   421,   422,   423,   425,   426,   427,   428,
-     429,   430,   431,   432,   433,   435,   434,   436,   407,   408,
-     409,   410,   411,   412,   413,   414,   415,   416,   417,   418,
-     424,   419,     0,   442,   141,    53,     0,    54,    47,     0,
-       0,    70,     0,     0,     0,     0,   259,   256,   238,     0,
-     253,   240,   242,   245,   249,   251,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,   374,
-       0,   378,     0,     0,     0,   384,   385,   304,   305,   303,
-     299,   299,   299,   317,     0,     0,   311,   299,     0,   307,
-     328,   299,   329,   331,   334,   335,   332,     0,   339,   301,
-     337,   341,   343,   345,     0,   344,   348,   346,   299,   351,
-     355,   353,   357,   358,   359,     0,     0,     0,   120,   120,
-     114,     0,     0,     0,     0,     0,   365,   368,   369,     0,
-       0,    10,     1,     5,     6,     7,   237,     0,    56,    68,
-      67,    72,    62,    57,    58,    60,    59,    63,    61,     0,
-      73,    39,    40,    43,    41,    42,    44,    85,   115,    13,
-     186,     0,    89,    92,   153,   155,   161,   169,   160,   159,
-     387,   391,   268,     0,   387,   168,   171,     0,    95,   247,
-     122,   373,   269,   270,    99,     0,     0,     0,     0,     0,
-       0,   144,     0,    55,    74,    69,    71,    75,     0,   263,
-       0,     0,   252,   254,   244,     0,     0,     0,     0,     0,
+       0,     3,   241,   245,   249,   243,   252,   254,   382,     0,
+       0,    53,    49,    50,    51,    52,    77,    78,    79,    80,
+      82,     0,     0,     0,   257,   257,   257,   257,   257,   257,
+     203,    81,    83,    84,   384,     0,     0,   133,     0,   396,
+      87,    88,    89,     0,     0,   135,   136,   137,   138,   139,
+     140,     0,   320,   328,   322,   309,   337,   309,   309,   343,
+     311,   350,   352,   305,   357,   309,   364,     0,   127,   131,
+     126,   108,   121,   121,   107,     0,    97,     0,     0,     0,
+       0,   374,     0,     0,     0,   299,   300,   301,   302,   303,
+     304,     9,     0,     2,     4,     0,    12,    14,    20,    34,
+      46,     0,     0,    35,    47,     0,    85,    99,   100,    23,
+     103,   111,   112,   109,   110,   106,   104,   105,   101,   102,
+      27,    28,    29,    30,    31,    32,    33,    15,    17,    18,
+      19,    36,    16,     0,   186,    92,     0,   271,     0,     0,
+       0,    22,    24,    37,   276,   277,   278,   280,   279,   281,
+     282,   283,   284,   285,   286,   287,   288,   289,   290,   291,
+     292,   293,   294,   295,   296,   297,   298,    21,    25,    26,
+      38,    94,   250,   247,     0,   275,     0,     0,     0,     0,
+       0,     0,   173,   175,   431,   432,   433,   409,   407,   410,
+     411,   408,   413,   412,   416,   415,   414,   434,   417,   418,
+     419,   420,   421,   422,   423,   424,   425,   426,   427,   428,
+     430,   429,     0,   435,   142,    54,     0,    55,    48,     0,
+       0,    71,     0,     0,     0,     0,   263,   260,   242,     0,
+     257,   244,   246,   249,   253,   255,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-     218,     0,     0,   231,   231,     0,     0,     0,   187,     0,
-       0,   205,   202,    11,     0,     0,   375,   379,   380,   376,
-     377,   133,   295,   299,   319,   299,   299,   323,   299,   321,
-     313,   315,     0,   316,   299,   308,   300,   330,   336,   302,
-     338,   296,     0,   352,   356,   129,     0,   123,     0,   124,
-     125,    97,   116,   118,     0,   363,   366,   367,   370,   371,
-       8,    66,    64,     0,   156,     0,     0,     0,    38,   154,
-       0,   390,     0,     0,   393,     0,   162,     0,   120,   182,
-     184,   183,   181,     0,     0,     0,     0,     0,     0,   173,
-     152,   147,   149,   148,     0,     0,   145,   142,     0,   264,
-     265,   266,     0,     0,     0,     0,   233,   235,   236,   218,
-     218,   218,   218,   233,     0,     0,     0,     0,     0,     0,
-       0,   231,   231,     0,     0,   218,   218,   218,   232,   218,
-       0,     0,   218,   203,   204,   382,     0,     0,   306,   320,
-     324,   299,   325,   322,   314,   309,     0,     0,   349,     0,
-       0,   121,     0,     0,   360,     0,   157,   158,    90,   388,
-       0,   395,   392,   170,     0,     0,    94,   126,   177,   180,
-     175,     0,     0,     0,   150,     0,     0,   140,     0,   255,
-     257,     0,     0,   261,   260,   218,   234,     0,     0,     0,
-       0,   230,     0,   220,   221,   223,   224,   227,   228,   225,
-     226,   222,   188,     0,     0,     0,     0,     0,     0,     0,
-       0,   383,   381,   326,   298,   297,     0,     0,   130,   117,
-     119,   361,   362,    65,     0,     0,   394,   164,     0,   167,
-     178,     0,     0,   151,   146,   143,   258,   262,     0,   191,
-     189,   192,   193,   233,   219,   197,   198,   195,   196,     0,
-       0,     0,     0,     0,   207,     0,     0,   190,   350,     0,
-     389,   396,     0,   163,   176,   179,   194,   229,     0,     0,
-       0,     0,     0,     0,   231,     0,   131,   165,     0,     0,
-       0,   210,     0,     0,   216,   199,   206,     0,   200,   208,
-     209,     0,     0,   212,     0,   213,   231,     0,   217,   215,
-       0,   211,   214
+     384,     0,   388,     0,     0,     0,   394,   395,   314,   315,
+     313,   309,   309,   309,   327,     0,     0,   321,   309,     0,
+     317,   338,   309,   339,   341,   344,   345,   342,     0,   349,
+     311,   347,   351,   353,   355,     0,   354,   358,   356,   309,
+     361,   365,   363,   367,   368,   369,     0,     0,     0,     0,
+     119,   119,   113,     0,     0,     0,     0,     0,   375,   378,
+     379,     0,     0,    10,     1,     5,     6,     7,   241,     0,
+      57,    69,    68,    73,    63,    58,    59,    61,    60,    64,
+      62,     0,    74,    40,    41,    44,    42,    43,    45,    86,
+     114,    13,   187,     0,    90,    93,   154,   156,   162,   170,
+     161,   160,   397,   401,   272,     0,   397,   169,   172,     0,
+      96,   251,   121,   383,   273,   274,     0,     0,     0,     0,
+       0,     0,   145,     0,    56,    75,    70,    72,    76,     0,
+     267,     0,     0,   256,   258,   248,     0,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,   221,     0,     0,   235,   235,     0,     0,     0,
+       0,   188,     0,     0,   207,   204,    11,     0,     0,   385,
+     389,   390,   386,   387,   134,   305,   309,   329,   309,   309,
+     333,   309,   331,   323,   325,     0,   326,   309,   318,   310,
+     340,   346,   312,   348,   306,     0,   362,   366,   128,     0,
+     132,   122,     0,   123,   124,    98,   115,   117,     0,   373,
+     376,   377,   380,   381,     8,    67,    65,     0,   157,     0,
+       0,     0,    39,   155,     0,   400,     0,     0,   403,     0,
+     163,     0,   119,   183,   185,   184,   182,     0,     0,     0,
+       0,     0,     0,   174,   153,   148,   150,   149,     0,     0,
+     146,   143,     0,   268,   269,   270,     0,     0,     0,     0,
+     237,   239,   240,   221,   221,   221,   221,   237,     0,     0,
+       0,     0,     0,     0,     0,   235,   235,     0,     0,     0,
+     221,   221,   221,   236,   221,   221,     0,     0,   221,   205,
+     206,   392,     0,     0,   316,   330,   334,   309,   335,   332,
+     324,   319,     0,     0,   359,     0,     0,   120,     0,     0,
+     370,     0,   158,   159,    91,   398,     0,   405,   402,   171,
+       0,     0,    95,   125,   178,   181,   176,     0,     0,     0,
+     151,     0,     0,   141,     0,   259,   261,     0,     0,   265,
+     264,   221,   238,     0,     0,     0,     0,   234,     0,   223,
+     224,   226,   227,   230,   231,   228,   229,   232,   225,   189,
+       0,     0,     0,     0,     0,     0,     0,     0,     0,   393,
+     391,   336,   308,   307,     0,     0,   129,   116,   118,   371,
+     372,    66,     0,     0,   404,   165,     0,   168,   179,     0,
+       0,   152,   147,   144,   262,   266,     0,   192,   190,   193,
+     194,   237,   222,   198,   199,   196,   197,   202,     0,     0,
+       0,     0,     0,     0,   209,     0,     0,   191,   360,     0,
+     399,   406,     0,   164,   177,   180,   195,   233,     0,     0,
+       0,     0,     0,     0,     0,   235,     0,   130,   166,     0,
+       0,     0,   212,   214,     0,     0,   219,   200,   208,     0,
+     201,   210,   211,     0,     0,   215,     0,   216,   235,     0,
+     220,   218,     0,   213,   217
 };
 
 /* YYDEFGOTO[NTERM-NUM].  */
 static const yytype_int16 yydefgoto[] =
 {
-      -1,    85,    86,    87,    88,    89,   356,    91,    92,    93,
-     228,   329,   340,   330,   331,    94,    95,    96,    97,    98,
-      99,   478,   352,   100,   101,   102,   103,   104,   105,   106,
-     459,   308,   107,   108,   109,   110,   111,   112,   113,   114,
-     115,   116,   117,   118,   119,   222,   505,   506,   353,   354,
-     355,   357,   358,   575,   638,   120,   121,   122,   123,   124,
-     125,   175,   176,   492,   126,   127,   258,   422,   663,   664,
-     666,   693,   694,   534,   410,   537,   595,   538,   128,   129,
-     130,   131,   165,   132,   133,   238,   239,   240,   512,   363,
-     134,   135,   295,   279,   290,   136,   269,   137,   138,   139,
-     276,   140,   273,   141,   142,   143,   144,   286,   145,   146,
-     147,   148,   149,   297,   150,   151,   301,   152,   153,   154,
-     155,   156,   157,   158,   169,   159,   426,   427,   428,   160,
-     161,   162,   481,   359,   360,   223,   361
+      -1,    92,    93,    94,    95,    96,   348,    98,    99,   100,
+     218,   321,   332,   322,   323,   101,   102,   103,   104,   105,
+     106,   472,   344,   107,   108,   109,   110,   111,   112,   453,
+     300,   113,   114,   115,   116,   117,   118,   119,   120,   121,
+     122,   123,   124,   125,   126,   212,   499,   500,   345,   346,
+     347,   349,   350,   571,   636,   127,   128,   129,   130,   131,
+     132,   182,   183,   486,   133,   134,   249,   415,   663,   664,
+     666,   695,   696,   529,   402,   532,   591,   533,   135,   136,
+     137,   138,   173,   139,   140,   228,   229,   230,   506,   355,
+     141,   142,   143,   286,   270,   281,   144,   260,   145,   146,
+     147,   267,   148,   264,   149,   150,   151,   152,   277,   153,
+     154,   155,   156,   157,   288,   158,   159,   292,   160,   161,
+     162,   163,   164,   165,   166,   177,   167,   419,   420,   421,
+     168,   169,   170,   475,   351,   352,   213,   353
 };
 
 /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
    STATE-NUM.  */
-#define YYPACT_NINF -485
+#define YYPACT_NINF -479
 static const yytype_int16 yypact[] =
 {
-     392,  -485,    32,  -485,    42,  -485,  -485,  -485,    49,   -12,
-    1337,    63,    91,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  1337,  1337,   172,    31,    31,    31,    31,    31,    31,
-     145,  -485,  -485,  -485,   830,   151,   161,  -485,   102,  -485,
-    -485,  -485,  -485,   138,   210,  -485,  -485,  -485,  -485,  -485,
-    -485,   124,  -485,   105,   -33,   169,   190,   -45,   176,    -5,
-      57,   231,   174,    34,   203,    35,   204,    56,    50,  -485,
-    -485,   291,   291,  -485,  1337,   251,   296,   297,   313,   320,
-    -485,   211,   242,   -65,   279,   330,   559,  -485,    17,  -485,
-    -485,  -485,  -485,  -485,    23,   159,  -485,  -485,   230,  1444,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,   995,   292,   158,   680,
-     265,  1337,   680,  1337,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,    -8,   283,  -485,   316,  -485,   156,   193,
-     158,   164,   254,   255,   -31,  -485,   168,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,   167,  -485,   166,  -485,   280,  -485,  -485,  1337,
-     318,   315,  1337,   175,   177,   178,   179,  -485,  -485,   308,
-      31,  -485,  -485,    42,  -485,  -485,   272,   185,   186,   188,
-     189,   171,   191,   192,   194,   195,   201,   196,    68,  -485,
-     202,   244,   276,   282,   232,  -485,  -485,  -485,   247,  -485,
-      26,   -36,    30,  -485,   -32,   286,  -485,   150,   289,  -485,
-    -485,   176,  -485,  -485,  -485,   290,  -485,   293,  -485,   243,
-    -485,  -485,  -485,  -485,   266,  -485,   208,  -485,   176,  -485,
-     267,  -485,  -485,  -485,  -485,   300,   233,   301,   256,   256,
-    -485,  1337,   305,   306,   307,   309,   278,   294,  -485,   295,
-     302,  -485,  -485,  -485,  -485,   346,  -485,   328,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,   335,
-     250,  -485,  -485,  -485,  -485,  -485,  -485,    12,  -485,  -485,
-    -485,     9,   404,   158,  -485,  -485,  -485,  -485,  -485,  -485,
-     298,  1112,  -485,   406,   298,  -485,  -485,   407,    -4,  -485,
-     291,  -485,  -485,  -485,   158,    33,   261,   262,   268,   106,
-     -20,    14,  1337,  -485,  -485,  -485,  -485,  -485,   321,   223,
-     354,   -14,  -485,  -485,  -485,   269,    39,    39,    39,    39,
-     -83,   270,   277,   281,   284,   285,   287,   288,   317,   319,
-    -485,    39,    39,    39,    39,   322,   323,    39,  -485,   355,
-     356,  -485,  -485,  -485,   390,   391,  -485,   303,  -485,  -485,
-    -485,  -485,   331,   176,  -485,   176,    60,  -485,   176,  -485,
-    -485,  -485,   369,  -485,   176,  -485,  -485,  -485,  -485,  -485,
-    -485,   -52,   339,  -485,  -485,   388,   324,  -485,   378,  -485,
-    -485,  -485,   437,   438,   325,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,   299,  -485,   314,   139,   680,  -485,  -485,
-     -35,  -485,  1337,  1337,  -485,   680,   -13,   680,   256,  -485,
-    -485,  -485,  -485,    33,    33,    33,   326,   381,   382,  -485,
-    -485,  -485,  -485,  -485,   -11,   -27,  -485,   304,   327,  -485,
-    -485,  -485,   329,   383,   -50,   332,    39,  -485,  -485,  -485,
-    -485,  -485,  -485,    39,   384,    39,    39,    39,    39,    39,
-      39,    39,    39,    39,   -17,  -485,  -485,  -485,  -485,  -485,
-     333,   334,  -485,  -485,  -485,  -485,   429,   244,  -485,  -485,
-    -485,   176,  -485,  -485,  -485,  -485,   353,   377,   336,   347,
-     417,  -485,   419,   421,    -2,   422,  -485,  -485,  -485,  -485,
-     428,  -485,  1230,  -485,   433,    80,  -485,  -485,  -485,  -485,
-    -485,    33,   340,   345,  -485,   435,    14,  -485,  1337,  -485,
-    -485,   348,   349,  -485,  -485,  -485,  -485,   -16,    -7,    -1,
-       0,  -485,   357,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,   171,     2,     3,     5,     6,    86,   453,
-       7,  -485,  -485,  -485,  -485,  -485,   447,   361,  -485,  -485,
-    -485,  -485,  -485,  -485,   363,  1337,  -485,  -485,   123,  -485,
-    -485,    33,    33,  -485,  -485,  -485,  -485,  -485,     8,  -485,
-    -485,  -485,  -485,    39,  -485,  -485,  -485,  -485,  -485,   367,
-     368,   371,   405,   344,   413,   412,   365,  -485,  -485,   494,
-    -485,  -485,   505,  -485,  -485,  -485,  -485,  -485,    39,    39,
-     -70,   513,   560,    86,    39,   561,  -485,  -485,   424,   427,
-     430,  -485,   431,   432,   434,  -485,  -485,    18,  -485,  -485,
-    -485,    39,    39,  -485,   513,  -485,    39,   441,  -485,  -485,
-     442,  -485,  -485
+     418,  -479,    36,  -479,   -62,  -479,  -479,  -479,    47,   -14,
+    1104,    50,    68,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  1104,  1104,   116,     8,     8,     8,     8,     8,     8,
+     300,  -479,  -479,  -479,   770,   109,    51,  -479,    29,  -479,
+    -479,  -479,  -479,   137,   157,  -479,  -479,  -479,  -479,  -479,
+    -479,   129,  -479,   221,    54,    71,   210,   -54,   124,    -2,
+     -36,   182,   172,    92,   217,   -15,   224,   148,    49,   297,
+    -479,  -479,   319,   319,  -479,  1104,   285,   328,   330,   348,
+     355,  -479,   254,   291,   -40,  -479,  -479,  -479,  -479,  -479,
+    -479,   327,   379,   595,  -479,    -8,  -479,  -479,  -479,  -479,
+    -479,    11,   200,  -479,  -479,   360,  1212,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,   944,   341,   201,    95,   316,  1104,    95,
+    1104,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,     0,   334,  -479,   367,  -479,   199,   218,   208,   305,
+     308,   -11,  -479,   230,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,   216,  -479,   227,  -479,   350,  -479,  -479,  1104,
+     388,   385,  1104,   234,   235,   237,   238,  -479,  -479,   383,
+       8,  -479,  -479,   -62,  -479,  -479,   353,   256,   257,   263,
+     264,   212,   267,   275,   277,   278,   279,   198,   280,    46,
+    -479,   286,    76,   380,   384,   345,  -479,  -479,  -479,   351,
+    -479,   -25,   -44,    38,  -479,   -16,   386,  -479,   207,   392,
+    -479,  -479,   124,  -479,  -479,  -479,   393,  -479,   394,  -479,
+     346,  -479,  -479,  -479,  -479,   361,  -479,   301,  -479,   124,
+    -479,   363,  -479,  -479,  -479,  -479,   400,   329,   402,   403,
+     354,   354,  -479,  1104,   405,   406,   407,   409,   376,   377,
+    -479,   378,   397,  -479,  -479,  -479,  -479,   447,  -479,   414,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,   417,   325,  -479,  -479,  -479,  -479,  -479,  -479,    13,
+    -479,  -479,  -479,    10,   489,   201,  -479,  -479,  -479,  -479,
+    -479,  -479,   381,   206,  -479,   490,   381,  -479,  -479,   491,
+       3,  -479,   319,  -479,  -479,  -479,   120,   337,   338,   340,
+     147,   -14,     2,  1104,  -479,  -479,  -479,  -479,  -479,   408,
+     284,   439,    -7,  -479,  -479,  -479,   342,   136,   136,   136,
+     136,   -27,   343,   347,   349,   352,   356,   357,   358,   359,
+     364,   365,  -479,   136,   136,   136,   136,   136,   366,   368,
+     136,  -479,   443,   444,  -479,  -479,  -479,   470,   471,  -479,
+     370,  -479,  -479,  -479,  -479,   410,   124,  -479,   124,    41,
+    -479,   124,  -479,  -479,  -479,   451,  -479,   124,  -479,  -479,
+    -479,  -479,  -479,  -479,   -69,   427,  -479,  -479,   464,   387,
+    -479,  -479,   468,  -479,  -479,  -479,   532,   535,   389,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,   390,  -479,   382,
+     169,    95,  -479,  -479,   -29,  -479,  1104,  1104,  -479,    95,
+      -9,    95,   354,  -479,  -479,  -479,  -479,   120,   120,   120,
+     416,   506,   515,  -479,  -479,  -479,  -479,  -479,     7,   110,
+    -479,   429,   431,  -479,  -479,  -479,   432,   538,   -53,   442,
+     136,  -479,  -479,  -479,  -479,  -479,  -479,   136,   550,   136,
+     136,   136,   136,   136,   136,   136,   136,   136,   136,   -13,
+    -479,  -479,  -479,  -479,  -479,  -479,   450,   452,  -479,  -479,
+    -479,  -479,   574,    76,  -479,  -479,  -479,   124,  -479,  -479,
+    -479,  -479,   521,   522,   460,   486,   559,  -479,   560,   561,
+      26,   562,  -479,  -479,  -479,  -479,   563,  -479,  1070,  -479,
+     569,    70,  -479,  -479,  -479,  -479,  -479,   120,   472,   473,
+    -479,   572,     2,  -479,  1104,  -479,  -479,   474,   475,  -479,
+    -479,  -479,  -479,    -5,    -4,    -3,    -1,  -479,   479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+     212,     9,    15,    17,    18,    19,   140,   589,    20,  -479,
+    -479,  -479,  -479,  -479,   578,   481,  -479,  -479,  -479,  -479,
+    -479,  -479,   480,  1104,  -479,  -479,   111,  -479,  -479,   120,
+     120,  -479,  -479,  -479,  -479,  -479,    21,  -479,  -479,  -479,
+    -479,   136,  -479,  -479,  -479,  -479,  -479,  -479,   482,   483,
+     484,   485,   487,   488,   492,   495,   496,  -479,  -479,   585,
+    -479,  -479,   587,  -479,  -479,  -479,  -479,  -479,   136,   136,
+     -59,   508,   588,   633,   140,   136,   652,  -479,  -479,   510,
+     511,   514,  -479,  -479,   516,   513,   518,  -479,  -479,    42,
+    -479,  -479,  -479,   136,   136,  -479,   588,  -479,   136,   517,
+    -479,  -479,   519,  -479,  -479
 };
 
 /* YYPGOTO[NTERM-NUM].  */
 static const yytype_int16 yypgoto[] =
 {
-    -485,  -485,  -485,   520,   575,   484,     4,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,   448,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -296,   -62,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,   525,    55,  -485,    36,  -148,  -302,
-    -485,  -129,    45,  -485,  -485,   126,   147,   163,   187,   200,
-    -485,   241,  -485,  -477,   496,  -485,  -485,  -485,   -57,  -485,
-    -485,   -77,  -485,  -309,    15,  -387,  -484,  -391,  -485,  -485,
-    -485,  -485,   386,  -485,  -485,   264,   393,  -485,  -485,  -485,
-    -485,  -485,   198,   -56,   342,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,    85,  -485,
-    -485,   540,   271,  -485,   173,  -485,   -10
+    -479,  -479,  -479,   607,   668,   571,     1,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,   534,  -479,  -479,  -479,  -479,  -479,  -479,  -287,
+     -60,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,   605,   632,  -479,   126,  -146,  -281,
+    -479,  -134,   138,  -479,  -479,   128,   131,   141,   151,   164,
+    -479,   339,  -479,  -455,   577,  -479,  -479,  -479,    28,  -479,
+    -479,    12,  -479,  -227,   103,  -402,  -478,  -381,  -479,  -479,
+    -479,  -479,   494,  -479,  -479,   253,   493,  -479,  -479,  -479,
+    -479,  -479,  -479,   290,   -55,   436,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,   174,
+    -479,  -479,   621,   369,  -479,    97,  -479,   -10
 };
 
 /* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
    positive, shift that token.  If negative, reduce the rule which
    number is the opposite.  If zero, do what YYDEFACT says.
    If YYTABLE_NINF, syntax error.  */
-#define YYTABLE_NINF -442
+#define YYTABLE_NINF -435
 static const yytype_int16 yytable[] =
 {
-     224,   282,   283,   365,    90,   519,   520,   521,   522,   299,
-     309,   230,   231,   460,   326,   368,   578,   579,   580,   -91,
-     535,   536,   374,   -92,   612,   649,   542,   539,   326,     3,
-       4,     5,     6,     7,   650,   592,    10,  -166,    90,   601,
-     651,   652,    24,   655,   656,   690,   657,   658,   667,   676,
-     569,   479,   318,   440,   378,   319,    24,    25,    26,    27,
-      28,    29,  -441,   500,   224,   171,   479,   324,   166,   170,
-     556,   514,   479,   171,   584,   233,   234,   305,   172,   173,
-     284,   435,   225,   631,   226,   326,   172,   173,   278,   224,
-      90,   523,   436,   274,   524,   235,   441,   278,   328,   501,
-     275,   442,   341,   515,   640,   320,   691,   281,    39,   418,
-     419,   420,   163,    24,   502,   632,   236,   167,   489,   168,
-     229,   557,   306,   285,   517,   596,   593,   227,   518,   310,
-      90,   503,   596,   490,   603,   604,   605,   606,   607,   608,
-     570,   379,   611,   433,   609,   610,   586,   438,   237,   587,
-     491,   293,   174,   421,   348,   294,   613,   613,  -166,   278,
-     174,   585,   574,   278,   674,   675,   613,   351,   278,   677,
-     164,   351,   613,   613,   479,   613,   613,   551,   613,   613,
-     613,   613,   298,  -441,   351,   474,   504,   659,   325,  -441,
-     287,   496,   577,   278,   705,   327,   288,   289,   706,   660,
-     661,   232,   662,   476,   497,   498,   302,   303,   304,   261,
-     597,   598,   599,   600,   434,   437,   439,   262,   263,   384,
-     333,   445,   387,   265,   342,   447,   614,   615,   616,   246,
-     617,   270,   271,   620,   272,   326,     3,     4,     5,     6,
-       7,   334,   453,   267,   268,   343,   247,   248,   249,   250,
-     251,   252,   253,   254,   255,   256,   400,   335,   257,   372,
-     373,   344,   596,    24,    25,    26,    27,    28,    29,   509,
-     510,   511,   401,   402,   403,   404,   264,   405,   406,   407,
-     408,   336,   444,   278,   409,   345,   648,   688,   689,   241,
-     242,   243,   244,   245,   337,   266,   672,   697,   346,   673,
-     277,   461,   278,   424,   364,   425,   366,   280,   488,   278,
-     707,   708,   415,   416,   351,   567,   291,   292,   307,   710,
-     296,   300,   311,   312,   313,   314,   315,   317,   316,   321,
-     322,   339,    30,   351,   362,   369,   370,   371,   375,   376,
-     377,   380,   381,   382,   383,   385,   386,   392,   568,   431,
-     388,   484,   389,   390,   391,   475,   573,   395,   576,   396,
-     397,   429,   398,   399,   432,   411,   412,   430,   413,   414,
-     417,   443,   507,   423,   446,   448,   287,   549,   449,   550,
-     552,   452,   553,   451,   454,   455,   457,   456,   555,   458,
-     462,   463,   464,     1,   465,   466,   470,     2,     3,     4,
-       5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
-      15,   467,   468,   471,    16,    17,    18,    19,    20,   469,
-     472,    21,    22,   473,    23,    24,    25,    26,    27,    28,
-      29,   477,    30,   485,   487,   493,   494,   480,   508,   513,
-     543,   544,   495,   516,   525,    31,    32,    33,    34,    35,
-     545,   526,   294,   546,   554,   527,   558,    36,   528,   529,
-     559,   530,   531,   561,   562,   563,   582,   583,   591,   602,
-     624,   565,   571,   572,    37,    38,   547,    39,    40,    41,
-      42,   588,    43,    44,    45,    46,    47,    48,    49,    50,
-     566,   532,   621,   533,   625,   623,   540,   541,   560,   564,
-     581,   627,   628,   589,   629,   590,   630,   633,   594,   626,
-      51,   618,   619,   634,   641,    52,    53,    54,   637,   642,
-     643,   665,    55,   682,   646,   647,    56,    57,    58,    59,
-      60,   653,   668,    61,    62,   669,    63,    64,    65,   670,
-      66,    67,   678,   679,   685,    68,   680,    69,    70,    71,
-      72,    73,    74,    75,    76,    77,    78,    79,    80,    81,
-      82,    83,   636,    84,     2,     3,     4,     5,     6,     7,
-       8,     9,    10,    11,    12,    13,    14,    15,   645,   686,
-     681,    16,    17,    18,    19,    20,   683,   684,    21,    22,
-     687,    23,    24,    25,    26,    27,    28,    29,   692,    30,
-     699,   695,   698,   700,   701,   702,   323,   704,   703,   260,
-     349,   367,    31,    32,    33,    34,    35,   711,   712,   332,
-     639,   499,   644,   350,    36,   671,   696,   709,   654,   394,
-     548,   450,   622,   393,   338,   486,     0,     0,     0,     0,
-       0,    37,    38,     0,    39,    40,    41,    42,     0,    43,
-      44,    45,    46,    47,    48,    49,    50,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,    51,     0,     0,
-       0,     0,    52,    53,    54,   326,     0,     0,     0,    55,
-       0,     0,     0,    56,    57,    58,    59,    60,     0,     0,
-      61,    62,     0,    63,    64,    65,     0,    66,    67,     0,
-       0,     0,    68,    24,    69,    70,    71,    72,    73,    74,
-      75,    76,    77,    78,    79,    80,    81,    82,    83,     0,
-      84,     0,     0,   177,   178,   179,   180,   181,   182,     0,
-       0,     0,   183,     0,   184,   185,   186,   187,   188,   189,
-     190,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,   191,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,   192,   193,   194,   195,   196,   197,   198,   199,   200,
-     201,   202,   203,   204,   205,   206,   207,     0,     0,   208,
-     209,     0,   210,     0,     0,     0,   211,   212,     0,   213,
-       0,   214,   215,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,   216,     0,     0,     0,   217,     0,     0,
-       0,   218,   219,     0,   220,     2,     3,     4,     5,     6,
+     214,    97,   273,   274,   534,   357,   513,   514,   515,   516,
+     290,   220,   221,   301,   454,   318,   318,     3,     4,     5,
+       6,     7,   530,   531,    10,   360,   535,   -92,   609,   538,
+     -93,   588,   574,   575,   576,    97,   647,   648,   649,   597,
+     650,  -167,   316,    24,    24,    25,    26,    27,    28,    29,
+     653,   494,   223,   224,   552,   565,   654,   691,   655,   656,
+     657,   667,   676,  -434,   473,   214,   174,   172,   433,   215,
+     178,   216,   225,   369,   428,   318,   296,   508,   310,   473,
+     269,   311,   275,   179,   180,   429,   495,   411,   412,   413,
+     269,   580,   226,   426,    97,    39,   340,   219,   278,   272,
+     318,   496,   320,    24,   279,   280,   333,   253,   254,   269,
+     629,   509,   553,   434,   217,   175,   171,   176,   435,   269,
+     497,   297,   638,   605,   606,   692,   227,   276,    24,   592,
+     414,   589,   312,   289,    97,   417,   592,   418,   599,   600,
+     601,   602,   603,   604,   630,   222,   607,   608,   184,   185,
+     186,   187,   188,   189,   566,   517,   431,   190,   518,   547,
+     191,   192,   193,   194,   195,   196,   181,   252,   610,   370,
+    -167,   317,   269,   677,   570,   269,   610,   610,   610,   197,
+     610,   265,   498,   343,   674,   675,   343,   581,   266,   473,
+     610,   319,  -434,   343,   468,   573,   610,   470,   610,   610,
+     610,   610,   610,   268,   483,   269,   427,   430,   432,   375,
+     284,   255,   378,   438,   285,   198,   199,   440,   200,   484,
+     511,   256,   201,   202,   512,   203,   707,   204,   205,   325,
+     708,   490,   326,   334,   446,   356,   335,   358,   485,   206,
+     658,   257,   327,   207,   491,   492,   336,   208,   209,   258,
+     259,   210,   328,   659,   660,   661,   337,   662,   269,   184,
+     185,   186,   187,   188,   189,   329,   282,   211,   190,   338,
+     592,   191,   192,   193,   194,   195,   196,   476,   231,   232,
+     233,   234,   235,   699,   364,   365,   593,   594,   595,   596,
+     197,   582,   672,   455,   583,   673,   391,   689,   690,   293,
+     294,   295,   482,   611,   612,   613,   712,   614,   615,   408,
+     409,   618,   392,   393,   394,   395,   283,   396,   397,   398,
+     399,   400,   709,   710,   298,   401,   198,   199,   271,   200,
+     503,   504,   505,   201,   202,   287,   203,   564,   204,   205,
+     437,   269,   291,   478,   469,   569,   299,   572,   261,   262,
+     206,   263,   343,   563,   207,   304,   303,   305,   208,   209,
+     306,   307,   210,   501,   646,   318,     3,     4,     5,     6,
+       7,   545,   308,   546,   548,   309,   549,   313,   211,   314,
+     331,    30,   551,   236,   343,   354,   361,   362,   363,   367,
+     366,   477,   368,    24,    25,    26,    27,    28,    29,   372,
+     237,   238,   239,   240,   241,   242,   243,   244,   245,   246,
+     247,   371,   373,   248,   374,   376,   377,   379,   380,     1,
+     381,   382,   383,     2,     3,     4,     5,     6,     7,     8,
+       9,    10,    11,    12,    13,    14,    15,   386,   387,   388,
+      16,    17,    18,    19,    20,   389,   390,    21,    22,   403,
+      23,    24,    25,    26,    27,    28,    29,   404,    30,   405,
+     406,   407,   410,   424,   422,   416,   567,   568,   423,   425,
+     436,    31,    32,    33,    34,    35,   439,   441,   442,   444,
+     278,   447,   445,    36,   448,   449,   450,   451,   452,   456,
+     457,   458,   621,   459,   460,   461,   462,   464,   465,    37,
+      38,   466,    39,    40,    41,    42,   467,    43,    44,    45,
+      46,    47,    48,    49,    50,   463,   471,   479,   481,   487,
+     488,   474,   489,   507,   510,   519,   502,   539,   540,   520,
+     541,   521,   285,   542,   522,   550,   555,    51,   523,   524,
+     525,   526,    52,    53,    54,   554,   527,   528,   536,    55,
+     537,   543,   557,    56,    57,    58,    59,    60,   634,   558,
+      61,    62,   559,    63,    64,    65,   562,    66,    67,   556,
+     561,   560,    68,    69,   643,    70,    71,    72,    73,    74,
+      75,    76,    77,    78,    79,    80,    81,    82,    83,    84,
+     578,    85,    86,    87,    88,    89,    90,    91,   577,   579,
+       2,     3,     4,     5,     6,     7,     8,     9,    10,    11,
+      12,    13,    14,    15,   584,   585,   586,    16,    17,    18,
+      19,    20,   587,   671,    21,    22,   590,    23,    24,    25,
+      26,    27,    28,    29,   598,    30,   616,   619,   617,   622,
+     623,   624,   625,   626,   627,   628,   631,   632,    31,    32,
+      33,    34,    35,   635,   639,   640,   641,   665,   644,   645,
+      36,   651,   668,   669,   670,   678,   679,   680,   681,   687,
+     682,   688,   694,   684,   697,   683,    37,    38,   685,    39,
+      40,    41,    42,   686,    43,    44,    45,    46,    47,    48,
+      49,    50,   693,   700,   701,   702,   703,   705,   704,   706,
+     315,   713,   251,   714,   341,   359,   324,   302,   642,   637,
+     493,   342,   698,   652,    51,   544,   443,   620,   711,    52,
+      53,    54,   330,   384,     0,   480,    55,   385,     0,     0,
+      56,    57,    58,    59,    60,     0,     0,    61,    62,     0,
+      63,    64,    65,     0,    66,    67,     0,     0,     0,    68,
+      69,     0,    70,    71,    72,    73,    74,    75,    76,    77,
+      78,    79,    80,    81,    82,    83,    84,     0,    85,    86,
+      87,    88,    89,    90,    91,     2,     3,     4,     5,     6,
        7,     8,     9,    10,    11,    12,    13,    14,    15,     0,
-     221,     0,    16,    17,    18,    19,    20,     0,     0,    21,
+       0,     0,    16,    17,    18,    19,    20,     0,     0,    21,
       22,     0,    23,    24,    25,    26,    27,    28,    29,     0,
       30,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,    31,    32,    33,   259,    35,     0,     0,
+       0,     0,     0,    31,    32,    33,   250,    35,     0,     0,
        0,     0,     0,     0,     0,    36,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,    37,    38,     0,    39,    40,    41,    42,     0,
-      43,    44,    45,    46,    47,    48,    49,    50,     0,     0,
+       0,    37,    38,     0,    39,    40,    41,    42,     0,    43,
+      44,    45,    46,    47,    48,    49,    50,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,    51,     0,
-       0,     0,     0,    52,    53,    54,     0,     0,     0,     0,
-      55,     0,     0,     0,    56,    57,    58,    59,    60,     0,
-       0,    61,    62,     0,    63,    64,    65,     0,    66,    67,
-       0,     0,     0,    68,     0,    69,    70,    71,    72,    73,
-      74,    75,    76,    77,    78,    79,    80,    81,    82,    83,
-       2,     3,     4,     5,     6,     7,     8,     9,    10,    11,
-      12,    13,    14,    15,     0,     0,     0,    16,    17,    18,
-      19,    20,     0,     0,    21,    22,     0,    23,    24,    25,
-      26,    27,    28,    29,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,    31,    32,
-      33,   259,    35,     0,     0,     0,     0,     0,     0,     0,
-      36,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,    37,    38,     0,
-      39,    40,    41,    42,     0,    43,    44,    45,    46,    47,
-      48,    49,    50,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,     0,     0,     0,    51,
+       0,     0,     0,     0,    52,    53,    54,     0,     0,     0,
+       0,    55,     0,     0,     0,    56,    57,    58,    59,    60,
+       0,     0,    61,    62,     0,    63,    64,    65,     0,    66,
+      67,     0,     0,     0,    68,    69,     0,    70,    71,    72,
+      73,    74,    75,    76,    77,    78,    79,    80,    81,    82,
+      83,    84,     0,    85,    86,    87,    88,    89,    90,     2,
+       3,     4,     5,     6,     7,     8,     9,    10,    11,    12,
+      13,    14,    15,     0,     0,     0,    16,    17,    18,    19,
+      20,     0,     0,    21,    22,     0,    23,    24,    25,    26,
+      27,    28,    29,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,     0,    31,    32,    33,
+     250,    35,     0,     0,     0,     0,     0,     0,     0,    36,
+       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,     0,     0,     0,    37,    38,     0,    39,    40,
+      41,    42,     0,    43,    44,    45,    46,    47,    48,    49,
+      50,     0,     0,     0,     0,     0,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
        0,     0,     0,    51,     0,     0,     0,     0,    52,    53,
       54,     0,     0,     0,     0,    55,     0,     0,     0,    56,
       57,    58,    59,    60,     0,     0,    61,    62,     0,    63,
-      64,    65,     0,    66,    67,     0,     0,     0,    68,     0,
-      69,    70,    71,    72,    73,    74,    75,    76,    77,    78,
-      79,    80,    81,    82,    83,   177,   178,   179,   180,   181,
-     182,     0,     0,     0,   183,     0,   184,   185,   186,   187,
-     188,   189,   190,   482,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,   191,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,   192,   193,   194,   195,   196,   197,   198,
-     199,   200,   201,   202,   203,   204,   205,   206,   207,     0,
-       0,   208,   209,     0,   210,     0,     0,     0,   211,   212,
-       0,   213,     0,   214,   215,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,   216,     0,     0,     0,   217,
-       0,     0,     0,   218,   219,     0,   220,     0,     0,     0,
+      64,    65,     0,    66,    67,     0,     0,     0,    68,    69,
+       0,    70,    71,    72,    73,    74,    75,    76,    77,    78,
+      79,    80,    81,    82,    83,    84,     0,    85,    86,    87,
+      88,    89,    90,   184,   185,   186,   187,   188,   189,     0,
+       0,     0,   190,     0,     0,   191,   192,   193,   194,   195,
+     196,   633,     0,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,     0,     0,   197,     0,     0,   184,   185,   186,
+     187,   188,   189,     0,     0,     0,   190,     0,     0,   191,
+     192,   193,   194,   195,   196,     0,     0,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,     0,     0,   197,     0,
+     198,   199,     0,   200,     0,     0,     0,   201,   202,     0,
+     203,     0,   204,   205,     0,     0,     0,     0,     0,     0,
+       0,     0,     0,     0,   206,     0,     0,     0,   207,     0,
+       0,     0,   208,   209,   198,   199,   210,   200,     0,     0,
+       0,   201,   202,     0,   203,     0,   204,   205,     0,     0,
+       0,     0,   211,     0,     0,     0,     0,     0,   206,     0,
+       0,     0,   207,     0,     0,     0,   208,   209,     0,     0,
+     210,     0,     0,     0,     0,   184,   185,   186,   187,   188,
+     189,     0,     0,     0,   190,     0,   211,   191,   192,   193,
+     194,   195,   196,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,   339,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,   221,   177,   178,   179,   180,   181,   182,   483,
-       0,     0,   183,     0,   184,   185,   186,   187,   188,   189,
-     190,   635,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,   191,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,   192,   193,   194,   195,   196,   197,   198,   199,   200,
-     201,   202,   203,   204,   205,   206,   207,     0,     0,   208,
-     209,     0,   210,     0,     0,     0,   211,   212,     0,   213,
-       0,   214,   215,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,   216,     0,     0,     0,   217,     0,     0,
-       0,   218,   219,     0,   220,     0,     0,     0,     0,     0,
-     177,   178,   179,   180,   181,   182,     0,     0,     0,   183,
-     221,   184,   185,   186,   187,   188,   189,   190,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,   191,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,   192,   193,
-     194,   195,   196,   197,   198,   199,   200,   201,   202,   203,
-     204,   205,   206,   207,     0,     0,   208,   209,     0,   210,
-       0,     0,     0,   211,   212,     0,   213,     0,   214,   215,
+       0,     0,   198,   199,     0,   200,     0,     0,     0,   201,
+     202,     0,   203,     0,   204,   205,     0,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,   206,     0,     0,     0,
+     207,     0,     0,     0,   208,   209,     0,     0,   210,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-     216,     0,     0,     0,   217,     0,     0,     0,   218,   219,
-       0,   220,     0,     0,     0,     0,     0,   177,   178,   179,
-     180,   181,   182,     0,     0,     0,   183,   221,   184,   185,
-     186,   187,   188,   189,   190,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,   347,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,   192,   193,   194,   195,   196,
-     197,   198,   199,   200,   201,   202,   203,   204,   205,   206,
-     207,     0,     0,   208,   209,     0,   210,     0,     0,     0,
-     211,   212,     0,   213,     0,   214,   215,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,   216,     0,     0,
-       0,   217,     0,     0,     0,   218,   219,     0,   220,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,   221
+       0,     0,     0,     0,   211
 };
 
 static const yytype_int16 yycheck[] =
 {
-      10,    57,    58,   132,     0,   396,   397,   398,   399,    65,
-      72,    21,    22,   309,     5,   163,   493,   494,   495,    27,
-     411,   412,   170,    27,    41,    41,   417,   414,     5,     6,
-       7,     8,     9,    10,    41,    85,    13,    50,    34,   523,
-      41,    41,    33,    41,    41,   115,    41,    41,    41,    41,
-      85,   353,   117,    85,    85,   120,    33,    34,    35,    36,
-      37,    38,    50,    49,    74,    85,   368,    50,    19,    81,
-     122,    85,   374,    85,    85,    44,    45,    27,    98,    99,
-      85,   117,    19,    85,    21,     5,    98,    99,   133,    99,
-      86,   174,   128,   126,   177,    64,   128,   133,    94,    85,
-     133,   133,    98,   117,   581,   170,   176,   152,    85,    41,
-      42,    43,    80,    33,   100,   117,    85,    68,    85,    70,
-      29,   173,    72,   128,    85,   516,   176,    64,    89,    74,
-     126,   117,   523,   100,   525,   526,   527,   528,   529,   530,
-     175,   172,   533,   117,   531,   532,   173,   117,   117,   176,
-     117,   117,   172,    85,    99,   121,   173,   173,   171,   133,
-     172,   172,   175,   133,   641,   642,   173,   175,   133,   653,
-     128,   175,   173,   173,   476,   173,   173,   117,   173,   173,
-     173,   173,   147,   171,   175,   176,   172,   101,   171,   177,
-     133,    85,   488,   133,   176,   172,   139,   140,   180,   113,
-     114,    29,   116,   351,    98,    99,   150,   151,   152,    58,
-     519,   520,   521,   522,   270,   271,   272,    56,    57,   229,
-      94,   277,   232,    85,    98,   281,   535,   536,   537,    84,
-     539,   126,   127,   542,   129,     5,     6,     7,     8,     9,
-      10,    94,   298,   119,   120,    98,   101,   102,   103,   104,
-     105,   106,   107,   108,   109,   110,    85,    94,   113,    66,
-      67,    98,   653,    33,    34,    35,    36,    37,    38,    46,
-      47,    48,   101,   102,   103,   104,   174,   106,   107,   108,
-     109,    94,   132,   133,   113,    98,   595,   678,   679,    25,
-      26,    27,    28,    29,    94,    85,   173,   684,    98,   176,
-     131,   311,   133,    59,   131,    61,   133,   117,   370,   133,
-     701,   702,   111,   112,   175,   176,    85,   143,    27,   706,
-     117,   117,    71,    27,    27,    12,     6,    85,   117,    50,
-       0,   172,    40,   175,    69,    52,    20,   181,   174,    85,
-      85,   173,   175,   177,    64,    27,    31,    39,   477,   117,
-     175,   361,   175,   175,   175,   351,   485,    85,   487,   174,
-     174,    85,   174,   174,   117,   174,   174,    85,   174,   174,
-     174,    85,   382,   171,    85,    85,   133,   433,    85,   435,
-     436,   173,   438,   117,   117,    85,    85,   154,   444,   133,
-      85,    85,    85,     1,    85,   117,    50,     5,     6,     7,
-       8,     9,    10,    11,    12,    13,    14,    15,    16,    17,
-      18,   117,   117,    85,    22,    23,    24,    25,    26,   117,
-      85,    29,    30,   173,    32,    33,    34,    35,    36,    37,
-      38,    27,    40,    27,    27,   174,   174,   139,   117,    85,
-      85,    85,   174,   174,   174,    53,    54,    55,    56,    57,
-      60,   174,   121,    62,    85,   174,   117,    65,   174,   174,
-      72,   174,   174,    85,    27,    27,    85,    85,    85,    85,
-     117,   172,   482,   483,    82,    83,   173,    85,    86,    87,
-      88,   177,    90,    91,    92,    93,    94,    95,    96,    97,
-     176,   174,    63,   174,   117,   551,   174,   174,   174,   174,
-     174,   154,    85,   176,    85,   176,    85,    85,   176,   173,
-     118,   178,   178,    85,   174,   123,   124,   125,    85,   174,
-      85,    68,   130,   179,   176,   176,   134,   135,   136,   137,
-     138,   174,    85,   141,   142,   174,   144,   145,   146,   176,
-     148,   149,   175,   175,   179,   153,   175,   155,   156,   157,
-     158,   159,   160,   161,   162,   163,   164,   165,   166,   167,
-     168,   169,   572,   171,     5,     6,     7,     8,     9,    10,
-      11,    12,    13,    14,    15,    16,    17,    18,   588,    85,
-     175,    22,    23,    24,    25,    26,   173,   175,    29,    30,
-      85,    32,    33,    34,    35,    36,    37,    38,    85,    40,
-     176,    41,    41,   176,   174,   174,    86,   173,   176,    34,
-     126,   163,    53,    54,    55,    56,    57,   176,   176,    94,
-     575,   380,   586,   127,    65,   635,   683,   704,   613,   243,
-     432,   289,   547,   240,    94,   364,    -1,    -1,    -1,    -1,
-      -1,    82,    83,    -1,    85,    86,    87,    88,    -1,    90,
-      91,    92,    93,    94,    95,    96,    97,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,   118,    -1,    -1,
-      -1,    -1,   123,   124,   125,     5,    -1,    -1,    -1,   130,
-      -1,    -1,    -1,   134,   135,   136,   137,   138,    -1,    -1,
-     141,   142,    -1,   144,   145,   146,    -1,   148,   149,    -1,
-      -1,    -1,   153,    33,   155,   156,   157,   158,   159,   160,
-     161,   162,   163,   164,   165,   166,   167,   168,   169,    -1,
-     171,    -1,    -1,    53,    54,    55,    56,    57,    58,    -1,
-      -1,    -1,    62,    -1,    64,    65,    66,    67,    68,    69,
-      70,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    85,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,   101,   102,   103,   104,   105,   106,   107,   108,   109,
-     110,   111,   112,   113,   114,   115,   116,    -1,    -1,   119,
-     120,    -1,   122,    -1,    -1,    -1,   126,   127,    -1,   129,
-      -1,   131,   132,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,   143,    -1,    -1,    -1,   147,    -1,    -1,
-      -1,   151,   152,    -1,   154,     5,     6,     7,     8,     9,
+      10,     0,    57,    58,   406,   139,   387,   388,   389,   390,
+      65,    21,    22,    73,   301,     5,     5,     6,     7,     8,
+       9,    10,   403,   404,    13,   171,   407,    27,    41,   410,
+      27,    84,   487,   488,   489,    34,    41,    41,    41,   517,
+      41,    50,    50,    33,    33,    34,    35,    36,    37,    38,
+      41,    49,    44,    45,   123,    84,    41,   116,    41,    41,
+      41,    41,    41,    50,   345,    75,    19,   129,    84,    19,
+      84,    21,    64,    84,   118,     5,    27,    84,   118,   360,
+     134,   121,    84,    97,    98,   129,    84,    41,    42,    43,
+     134,    84,    84,   118,    93,    84,   106,    29,   134,   153,
+       5,    99,   101,    33,   140,   141,   105,    56,    57,   134,
+      84,   118,   181,   129,    64,    68,    80,    70,   134,   134,
+     118,    72,   577,   525,   526,   184,   118,   129,    33,   510,
+      84,   184,   172,   148,   133,    59,   517,    61,   519,   520,
+     521,   522,   523,   524,   118,    29,   527,   528,    53,    54,
+      55,    56,    57,    58,   183,   182,   118,    62,   185,   118,
+      65,    66,    67,    68,    69,    70,   180,    58,   181,   180,
+     179,   179,   134,   651,   183,   134,   181,   181,   181,    84,
+     181,   127,   180,   183,   639,   640,   183,   180,   134,   470,
+     181,   180,   179,   183,   184,   482,   181,   343,   181,   181,
+     181,   181,   181,   132,    84,   134,   261,   262,   263,   219,
+     118,   182,   222,   268,   122,   120,   121,   272,   123,    99,
+      84,    84,   127,   128,    88,   130,   184,   132,   133,   101,
+     188,    84,   101,   105,   289,   138,   105,   140,   118,   144,
+     100,    84,   101,   148,    97,    98,   105,   152,   153,   120,
+     121,   156,   101,   113,   114,   115,   105,   117,   134,    53,
+      54,    55,    56,    57,    58,   101,    84,   172,    62,   105,
+     651,    65,    66,    67,    68,    69,    70,    71,    25,    26,
+      27,    28,    29,   685,    66,    67,   513,   514,   515,   516,
+      84,   181,   181,   303,   184,   184,    84,   678,   679,   151,
+     152,   153,   362,   530,   531,   532,   708,   534,   535,   111,
+     112,   538,   100,   101,   102,   103,   144,   105,   106,   107,
+     108,   109,   703,   704,    27,   113,   120,   121,   118,   123,
+      46,    47,    48,   127,   128,   118,   130,   471,   132,   133,
+     133,   134,   118,   353,   343,   479,    27,   481,   127,   128,
+     144,   130,   183,   184,   148,    27,    71,    27,   152,   153,
+      12,     6,   156,   373,   591,     5,     6,     7,     8,     9,
+      10,   426,   118,   428,   429,    84,   431,    50,   172,     0,
+     180,    40,   437,    83,   183,    69,    52,    20,   189,    84,
+     182,   185,    84,    33,    34,    35,    36,    37,    38,   183,
+     100,   101,   102,   103,   104,   105,   106,   107,   108,   109,
+     110,   181,   185,   113,    64,    27,    31,   183,   183,     1,
+     183,   183,    39,     5,     6,     7,     8,     9,    10,    11,
+      12,    13,    14,    15,    16,    17,    18,    84,   182,   182,
+      22,    23,    24,    25,    26,   182,   182,    29,    30,   182,
+      32,    33,    34,    35,    36,    37,    38,   182,    40,   182,
+     182,   182,   182,   118,    84,   179,   476,   477,    84,   118,
+      84,    53,    54,    55,    56,    57,    84,    84,    84,   118,
+     134,   118,   181,    65,    84,   156,    84,    84,   134,    84,
+      84,    84,   547,    84,   118,   118,   118,    50,    84,    81,
+      82,    84,    84,    85,    86,    87,   181,    89,    90,    91,
+      92,    93,    94,    95,    96,   118,    27,    27,    27,   182,
+     182,   140,   182,    84,   182,   182,   118,    84,    84,   182,
+      60,   182,   122,    62,   182,    84,    72,   119,   182,   182,
+     182,   182,   124,   125,   126,   118,   182,   182,   182,   131,
+     182,   181,    84,   135,   136,   137,   138,   139,   568,    27,
+     142,   143,    27,   145,   146,   147,   184,   149,   150,   182,
+     180,   182,   154,   155,   584,   157,   158,   159,   160,   161,
+     162,   163,   164,   165,   166,   167,   168,   169,   170,   171,
+      84,   173,   174,   175,   176,   177,   178,   179,   182,    84,
+       5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
+      15,    16,    17,    18,   185,   184,   184,    22,    23,    24,
+      25,    26,    84,   633,    29,    30,   184,    32,    33,    34,
+      35,    36,    37,    38,    84,    40,   186,    63,   186,   118,
+     118,   181,   156,    84,    84,    84,    84,    84,    53,    54,
+      55,    56,    57,    84,   182,   182,    84,    68,   184,   184,
+      65,   182,    84,   182,   184,   183,   183,   183,   183,    84,
+     183,    84,    84,   181,    41,   187,    81,    82,   183,    84,
+      85,    86,    87,   187,    89,    90,    91,    92,    93,    94,
+      95,    96,   184,    41,   184,   184,   182,   184,   182,   181,
+      93,   184,    34,   184,   133,   171,   101,    75,   582,   571,
+     371,   134,   684,   610,   119,   425,   280,   543,   706,   124,
+     125,   126,   101,   230,    -1,   356,   131,   233,    -1,    -1,
+     135,   136,   137,   138,   139,    -1,    -1,   142,   143,    -1,
+     145,   146,   147,    -1,   149,   150,    -1,    -1,    -1,   154,
+     155,    -1,   157,   158,   159,   160,   161,   162,   163,   164,
+     165,   166,   167,   168,   169,   170,   171,    -1,   173,   174,
+     175,   176,   177,   178,   179,     5,     6,     7,     8,     9,
       10,    11,    12,    13,    14,    15,    16,    17,    18,    -1,
-     170,    -1,    22,    23,    24,    25,    26,    -1,    -1,    29,
+      -1,    -1,    22,    23,    24,    25,    26,    -1,    -1,    29,
       30,    -1,    32,    33,    34,    35,    36,    37,    38,    -1,
       40,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
       -1,    -1,    -1,    53,    54,    55,    56,    57,    -1,    -1,
       -1,    -1,    -1,    -1,    -1,    65,    -1,    -1,    -1,    -1,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    82,    83,    -1,    85,    86,    87,    88,    -1,
-      90,    91,    92,    93,    94,    95,    96,    97,    -1,    -1,
+      -1,    81,    82,    -1,    84,    85,    86,    87,    -1,    89,
+      90,    91,    92,    93,    94,    95,    96,    -1,    -1,    -1,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,   118,    -1,
-      -1,    -1,    -1,   123,   124,   125,    -1,    -1,    -1,    -1,
-     130,    -1,    -1,    -1,   134,   135,   136,   137,   138,    -1,
-      -1,   141,   142,    -1,   144,   145,   146,    -1,   148,   149,
-      -1,    -1,    -1,   153,    -1,   155,   156,   157,   158,   159,
+      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,   119,
+      -1,    -1,    -1,    -1,   124,   125,   126,    -1,    -1,    -1,
+      -1,   131,    -1,    -1,    -1,   135,   136,   137,   138,   139,
+      -1,    -1,   142,   143,    -1,   145,   146,   147,    -1,   149,
+     150,    -1,    -1,    -1,   154,   155,    -1,   157,   158,   159,
      160,   161,   162,   163,   164,   165,   166,   167,   168,   169,
-       5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
-      15,    16,    17,    18,    -1,    -1,    -1,    22,    23,    24,
-      25,    26,    -1,    -1,    29,    30,    -1,    32,    33,    34,
-      35,    36,    37,    38,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    53,    54,
-      55,    56,    57,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      65,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    82,    83,    -1,
-      85,    86,    87,    88,    -1,    90,    91,    92,    93,    94,
-      95,    96,    97,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
+     170,   171,    -1,   173,   174,   175,   176,   177,   178,     5,
+       6,     7,     8,     9,    10,    11,    12,    13,    14,    15,
+      16,    17,    18,    -1,    -1,    -1,    22,    23,    24,    25,
+      26,    -1,    -1,    29,    30,    -1,    32,    33,    34,    35,
+      36,    37,    38,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
+      -1,    -1,    -1,    -1,    -1,    -1,    -1,    53,    54,    55,
+      56,    57,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    65,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,   118,    -1,    -1,    -1,    -1,   123,   124,
-     125,    -1,    -1,    -1,    -1,   130,    -1,    -1,    -1,   134,
-     135,   136,   137,   138,    -1,    -1,   141,   142,    -1,   144,
-     145,   146,    -1,   148,   149,    -1,    -1,    -1,   153,    -1,
-     155,   156,   157,   158,   159,   160,   161,   162,   163,   164,
-     165,   166,   167,   168,   169,    53,    54,    55,    56,    57,
-      58,    -1,    -1,    -1,    62,    -1,    64,    65,    66,    67,
-      68,    69,    70,    71,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    85,    -1,    -1,
+      -1,    -1,    -1,    -1,    -1,    81,    82,    -1,    84,    85,
+      86,    87,    -1,    89,    90,    91,    92,    93,    94,    95,
+      96,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,   101,   102,   103,   104,   105,   106,   107,
-     108,   109,   110,   111,   112,   113,   114,   115,   116,    -1,
-      -1,   119,   120,    -1,   122,    -1,    -1,    -1,   126,   127,
-      -1,   129,    -1,   131,   132,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,   143,    -1,    -1,    -1,   147,
-      -1,    -1,    -1,   151,   152,    -1,   154,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,   170,    53,    54,    55,    56,    57,    58,   177,
-      -1,    -1,    62,    -1,    64,    65,    66,    67,    68,    69,
+      -1,    -1,    -1,   119,    -1,    -1,    -1,    -1,   124,   125,
+     126,    -1,    -1,    -1,    -1,   131,    -1,    -1,    -1,   135,
+     136,   137,   138,   139,    -1,    -1,   142,   143,    -1,   145,
+     146,   147,    -1,   149,   150,    -1,    -1,    -1,   154,   155,
+      -1,   157,   158,   159,   160,   161,   162,   163,   164,   165,
+     166,   167,   168,   169,   170,   171,    -1,   173,   174,   175,
+     176,   177,   178,    53,    54,    55,    56,    57,    58,    -1,
+      -1,    -1,    62,    -1,    -1,    65,    66,    67,    68,    69,
       70,    71,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    85,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,   101,   102,   103,   104,   105,   106,   107,   108,   109,
-     110,   111,   112,   113,   114,   115,   116,    -1,    -1,   119,
-     120,    -1,   122,    -1,    -1,    -1,   126,   127,    -1,   129,
-      -1,   131,   132,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,   143,    -1,    -1,    -1,   147,    -1,    -1,
-      -1,   151,   152,    -1,   154,    -1,    -1,    -1,    -1,    -1,
-      53,    54,    55,    56,    57,    58,    -1,    -1,    -1,    62,
-     170,    64,    65,    66,    67,    68,    69,    70,    -1,    -1,
+      -1,    -1,    -1,    -1,    84,    -1,    -1,    53,    54,    55,
+      56,    57,    58,    -1,    -1,    -1,    62,    -1,    -1,    65,
+      66,    67,    68,    69,    70,    -1,    -1,    -1,    -1,    -1,
+      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    84,    -1,
+     120,   121,    -1,   123,    -1,    -1,    -1,   127,   128,    -1,
+     130,    -1,   132,   133,    -1,    -1,    -1,    -1,    -1,    -1,
+      -1,    -1,    -1,    -1,   144,    -1,    -1,    -1,   148,    -1,
+      -1,    -1,   152,   153,   120,   121,   156,   123,    -1,    -1,
+      -1,   127,   128,    -1,   130,    -1,   132,   133,    -1,    -1,
+      -1,    -1,   172,    -1,    -1,    -1,    -1,    -1,   144,    -1,
+      -1,    -1,   148,    -1,    -1,    -1,   152,   153,    -1,    -1,
+     156,    -1,    -1,    -1,    -1,    53,    54,    55,    56,    57,
+      58,    -1,    -1,    -1,    62,    -1,   172,    65,    66,    67,
+      68,    69,    70,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
+      -1,    -1,    -1,    -1,    -1,    -1,    84,    -1,    -1,    -1,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    85,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,   101,   102,
-     103,   104,   105,   106,   107,   108,   109,   110,   111,   112,
-     113,   114,   115,   116,    -1,    -1,   119,   120,    -1,   122,
-      -1,    -1,    -1,   126,   127,    -1,   129,    -1,   131,   132,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-     143,    -1,    -1,    -1,   147,    -1,    -1,    -1,   151,   152,
-      -1,   154,    -1,    -1,    -1,    -1,    -1,    53,    54,    55,
-      56,    57,    58,    -1,    -1,    -1,    62,   170,    64,    65,
-      66,    67,    68,    69,    70,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    85,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,   101,   102,   103,   104,   105,
-     106,   107,   108,   109,   110,   111,   112,   113,   114,   115,
-     116,    -1,    -1,   119,   120,    -1,   122,    -1,    -1,    -1,
-     126,   127,    -1,   129,    -1,   131,   132,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,   143,    -1,    -1,
-      -1,   147,    -1,    -1,    -1,   151,   152,    -1,   154,    -1,
+      -1,    -1,   120,   121,    -1,   123,    -1,    -1,    -1,   127,
+     128,    -1,   130,    -1,   132,   133,    -1,    -1,    -1,    -1,
+      -1,    -1,    -1,    -1,    -1,    -1,   144,    -1,    -1,    -1,
+     148,    -1,    -1,    -1,   152,   153,    -1,    -1,   156,    -1,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,   170
+      -1,    -1,    -1,    -1,   172
 };
 
 /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
@@ -1869,75 +1827,75 @@ static const yytype_uint16 yystos[] =
        0,     1,     5,     6,     7,     8,     9,    10,    11,    12,
       13,    14,    15,    16,    17,    18,    22,    23,    24,    25,
       26,    29,    30,    32,    33,    34,    35,    36,    37,    38,
-      40,    53,    54,    55,    56,    57,    65,    82,    83,    85,
-      86,    87,    88,    90,    91,    92,    93,    94,    95,    96,
-      97,   118,   123,   124,   125,   130,   134,   135,   136,   137,
-     138,   141,   142,   144,   145,   146,   148,   149,   153,   155,
-     156,   157,   158,   159,   160,   161,   162,   163,   164,   165,
-     166,   167,   168,   169,   171,   183,   184,   185,   186,   187,
-     188,   189,   190,   191,   197,   198,   199,   200,   201,   202,
-     205,   206,   207,   208,   209,   210,   211,   214,   215,   216,
-     217,   218,   219,   220,   221,   222,   223,   224,   225,   226,
-     237,   238,   239,   240,   241,   242,   246,   247,   260,   261,
-     262,   263,   265,   266,   272,   273,   277,   279,   280,   281,
-     283,   285,   286,   287,   288,   290,   291,   292,   293,   294,
-     296,   297,   299,   300,   301,   302,   303,   304,   305,   307,
-     311,   312,   313,    80,   128,   264,    19,    68,    70,   306,
-      81,    85,    98,    99,   172,   243,   244,    53,    54,    55,
-      56,    57,    58,    62,    64,    65,    66,    67,    68,    69,
-      70,    85,   101,   102,   103,   104,   105,   106,   107,   108,
-     109,   110,   111,   112,   113,   114,   115,   116,   119,   120,
-     122,   126,   127,   129,   131,   132,   143,   147,   151,   152,
-     154,   170,   227,   317,   318,    19,    21,    64,   192,    29,
-     318,   318,    29,    44,    45,    64,    85,   117,   267,   268,
-     269,   267,   267,   267,   267,   267,    84,   101,   102,   103,
-     104,   105,   106,   107,   108,   109,   110,   113,   248,    56,
-     186,    58,    56,    57,   174,    85,    85,   119,   120,   278,
-     126,   127,   129,   284,   126,   133,   282,   131,   133,   275,
-     117,   152,   275,   275,    85,   128,   289,   133,   139,   140,
-     276,    85,   143,   117,   121,   274,   117,   295,   147,   275,
-     117,   298,   150,   151,   152,    27,    72,    27,   213,   213,
-     227,    71,    27,    27,    12,     6,   117,    85,   117,   120,
-     170,    50,     0,   185,    50,   171,     5,   172,   188,   193,
-     195,   196,   226,   237,   238,   239,   240,   241,   313,   172,
-     194,   188,   237,   238,   239,   240,   241,    85,   227,   187,
-     246,   175,   204,   230,   231,   232,   188,   233,   234,   315,
-     316,   318,    69,   271,   316,   233,   316,   204,   230,    52,
-      20,   181,    66,    67,   230,   174,    85,    85,    85,   172,
-     173,   175,   177,    64,   318,    27,    31,   318,   175,   175,
-     175,   175,    39,   268,   264,    85,   174,   174,   174,   174,
-      85,   101,   102,   103,   104,   106,   107,   108,   109,   113,
-     256,   174,   174,   174,   174,   111,   112,   174,    41,    42,
-      43,    85,   249,   171,    59,    61,   308,   309,   310,    85,
-      85,   117,   117,   117,   275,   117,   128,   275,   117,   275,
-      85,   128,   133,    85,   132,   275,    85,   275,    85,    85,
-     276,   117,   173,   275,   117,    85,   154,    85,   133,   212,
-     212,   318,    85,    85,    85,    85,   117,   117,   117,   117,
-      50,    85,    85,   173,   176,   188,   230,    27,   203,   231,
-     139,   314,    71,   177,   318,    27,   314,    27,   213,    85,
-     100,   117,   245,   174,   174,   174,    85,    98,    99,   243,
-      49,    85,   100,   117,   172,   228,   229,   318,   117,    46,
-      47,    48,   270,    85,    85,   117,   174,    85,    89,   259,
-     259,   259,   259,   174,   177,   174,   174,   174,   174,   174,
-     174,   174,   174,   174,   255,   259,   259,   257,   259,   257,
-     174,   174,   259,    85,    85,    60,    62,   173,   274,   275,
-     275,   117,   275,   275,    85,   275,   122,   173,   117,    72,
-     174,    85,    27,    27,   174,   172,   176,   176,   233,    85,
-     175,   318,   318,   233,   175,   235,   233,   212,   245,   245,
-     245,   174,    85,    85,    85,   172,   173,   176,   177,   176,
-     176,    85,    85,   176,   176,   258,   259,   255,   255,   255,
-     255,   258,    85,   259,   259,   259,   259,   259,   259,   257,
-     257,   259,    41,   173,   255,   255,   255,   255,   178,   178,
-     255,    63,   310,   275,   117,   117,   173,   154,    85,    85,
-      85,    85,   117,    85,    85,    71,   318,    85,   236,   234,
-     245,   174,   174,    85,   229,   318,   176,   176,   255,    41,
-      41,    41,    41,   174,   256,    41,    41,    41,    41,   101,
-     113,   114,   116,   250,   251,    68,   252,    41,    85,   174,
-     176,   318,   173,   176,   245,   245,    41,   258,   175,   175,
-     175,   175,   179,   173,   175,   179,    85,    85,   259,   259,
-     115,   176,    85,   253,   254,    41,   250,   257,    41,   176,
-     176,   174,   174,   176,   173,   176,   180,   259,   259,   253,
-     257,   176,   176
+      40,    53,    54,    55,    56,    57,    65,    81,    82,    84,
+      85,    86,    87,    89,    90,    91,    92,    93,    94,    95,
+      96,   119,   124,   125,   126,   131,   135,   136,   137,   138,
+     139,   142,   143,   145,   146,   147,   149,   150,   154,   155,
+     157,   158,   159,   160,   161,   162,   163,   164,   165,   166,
+     167,   168,   169,   170,   171,   173,   174,   175,   176,   177,
+     178,   179,   191,   192,   193,   194,   195,   196,   197,   198,
+     199,   205,   206,   207,   208,   209,   210,   213,   214,   215,
+     216,   217,   218,   221,   222,   223,   224,   225,   226,   227,
+     228,   229,   230,   231,   232,   233,   234,   245,   246,   247,
+     248,   249,   250,   254,   255,   268,   269,   270,   271,   273,
+     274,   280,   281,   282,   286,   288,   289,   290,   292,   294,
+     295,   296,   297,   299,   300,   301,   302,   303,   305,   306,
+     308,   309,   310,   311,   312,   313,   314,   316,   320,   321,
+     322,    80,   129,   272,    19,    68,    70,   315,    84,    97,
+      98,   180,   251,   252,    53,    54,    55,    56,    57,    58,
+      62,    65,    66,    67,    68,    69,    70,    84,   120,   121,
+     123,   127,   128,   130,   132,   133,   144,   148,   152,   153,
+     156,   172,   235,   326,   327,    19,    21,    64,   200,    29,
+     327,   327,    29,    44,    45,    64,    84,   118,   275,   276,
+     277,   275,   275,   275,   275,   275,    83,   100,   101,   102,
+     103,   104,   105,   106,   107,   108,   109,   110,   113,   256,
+      56,   194,    58,    56,    57,   182,    84,    84,   120,   121,
+     287,   127,   128,   130,   293,   127,   134,   291,   132,   134,
+     284,   118,   153,   284,   284,    84,   129,   298,   134,   140,
+     141,   285,    84,   144,   118,   122,   283,   118,   304,   148,
+     284,   118,   307,   151,   152,   153,    27,    72,    27,    27,
+     220,   220,   235,    71,    27,    27,    12,     6,   118,    84,
+     118,   121,   172,    50,     0,   193,    50,   179,     5,   180,
+     196,   201,   203,   204,   234,   245,   246,   247,   248,   249,
+     322,   180,   202,   196,   245,   246,   247,   248,   249,    84,
+     327,   195,   254,   183,   212,   238,   239,   240,   196,   241,
+     242,   324,   325,   327,    69,   279,   325,   241,   325,   212,
+     238,    52,    20,   189,    66,    67,   182,    84,    84,    84,
+     180,   181,   183,   185,    64,   327,    27,    31,   327,   183,
+     183,   183,   183,    39,   276,   272,    84,   182,   182,   182,
+     182,    84,   100,   101,   102,   103,   105,   106,   107,   108,
+     109,   113,   264,   182,   182,   182,   182,   182,   111,   112,
+     182,    41,    42,    43,    84,   257,   179,    59,    61,   317,
+     318,   319,    84,    84,   118,   118,   118,   284,   118,   129,
+     284,   118,   284,    84,   129,   134,    84,   133,   284,    84,
+     284,    84,    84,   285,   118,   181,   284,   118,    84,   156,
+      84,    84,   134,   219,   219,   327,    84,    84,    84,    84,
+     118,   118,   118,   118,    50,    84,    84,   181,   184,   196,
+     238,    27,   211,   239,   140,   323,    71,   185,   327,    27,
+     323,    27,   220,    84,    99,   118,   253,   182,   182,   182,
+      84,    97,    98,   251,    49,    84,    99,   118,   180,   236,
+     237,   327,   118,    46,    47,    48,   278,    84,    84,   118,
+     182,    84,    88,   267,   267,   267,   267,   182,   185,   182,
+     182,   182,   182,   182,   182,   182,   182,   182,   182,   263,
+     267,   267,   265,   267,   265,   267,   182,   182,   267,    84,
+      84,    60,    62,   181,   283,   284,   284,   118,   284,   284,
+      84,   284,   123,   181,   118,    72,   182,    84,    27,    27,
+     182,   180,   184,   184,   241,    84,   183,   327,   327,   241,
+     183,   243,   241,   219,   253,   253,   253,   182,    84,    84,
+      84,   180,   181,   184,   185,   184,   184,    84,    84,   184,
+     184,   266,   267,   263,   263,   263,   263,   266,    84,   267,
+     267,   267,   267,   267,   267,   265,   265,   267,   267,    41,
+     181,   263,   263,   263,   263,   263,   186,   186,   263,    63,
+     319,   284,   118,   118,   181,   156,    84,    84,    84,    84,
+     118,    84,    84,    71,   327,    84,   244,   242,   253,   182,
+     182,    84,   237,   327,   184,   184,   263,    41,    41,    41,
+      41,   182,   264,    41,    41,    41,    41,    41,   100,   113,
+     114,   115,   117,   258,   259,    68,   260,    41,    84,   182,
+     184,   327,   181,   184,   253,   253,    41,   266,   183,   183,
+     183,   183,   183,   187,   181,   183,   187,    84,    84,   267,
+     267,   116,   184,   184,    84,   261,   262,    41,   258,   265,
+      41,   184,   184,   182,   182,   184,   181,   184,   188,   267,
+     267,   261,   265,   184,   184
 };
 
 #define yyerrok		(yyerrstatus = 0)
@@ -2945,42 +2903,42 @@ YYLTYPE yylloc;
 
   case 37:
 
-    { result->cur_stmt_type_ = OBPROXY_T_OTHERS; ;}
+    {;}
     break;
 
-  case 47:
+  case 38:
 
-    { result->cur_stmt_type_ = OBPROXY_T_CREATE; ;}
+    { result->cur_stmt_type_ = OBPROXY_T_OTHERS; ;}
     break;
 
   case 48:
 
-    { result->cur_stmt_type_ = OBPROXY_T_DROP; ;}
+    { result->cur_stmt_type_ = OBPROXY_T_CREATE; ;}
     break;
 
   case 49:
 
-    { result->cur_stmt_type_ = OBPROXY_T_ALTER; ;}
+    { result->cur_stmt_type_ = OBPROXY_T_DROP; ;}
     break;
 
   case 50:
 
-    { result->cur_stmt_type_ = OBPROXY_T_TRUNCATE; ;}
+    { result->cur_stmt_type_ = OBPROXY_T_ALTER; ;}
     break;
 
   case 51:
 
-    { result->cur_stmt_type_ = OBPROXY_T_RENAME; ;}
+    { result->cur_stmt_type_ = OBPROXY_T_TRUNCATE; ;}
     break;
 
-  case 53:
+  case 52:
 
-    { result->sub_stmt_type_ = OBPROXY_T_SUB_CREATE_TABLE; ;}
+    { result->cur_stmt_type_ = OBPROXY_T_RENAME; ;}
     break;
 
   case 54:
 
-    { result->sub_stmt_type_ = OBPROXY_T_SUB_CREATE_INDEX; ;}
+    { result->sub_stmt_type_ = OBPROXY_T_SUB_CREATE_TABLE; ;}
     break;
 
   case 55:
@@ -2990,7 +2948,7 @@ YYLTYPE yylloc;
 
   case 56:
 
-    {;}
+    { result->sub_stmt_type_ = OBPROXY_T_SUB_CREATE_INDEX; ;}
     break;
 
   case 57:
@@ -3030,6 +2988,11 @@ YYLTYPE yylloc;
 
   case 64:
 
+    {;}
+    break;
+
+  case 65:
+
     {
                                 ObProxyTextPsParseNode *node = NULL;
                                 malloc_parse_node(node);
@@ -3038,7 +3001,7 @@ YYLTYPE yylloc;
                               ;}
     break;
 
-  case 65:
+  case 66:
 
     {
                                 ObProxyTextPsParseNode *node = NULL;
@@ -3048,7 +3011,7 @@ YYLTYPE yylloc;
                               ;}
     break;
 
-  case 66:
+  case 67:
 
     {
                           ObProxyTextPsParseNode *node = NULL;
@@ -3058,7 +3021,7 @@ YYLTYPE yylloc;
                         ;}
     break;
 
-  case 69:
+  case 70:
 
     {
                       result->text_ps_inner_stmt_type_ = OBPROXY_T_TEXT_PS_PREPARE;
@@ -3066,7 +3029,7 @@ YYLTYPE yylloc;
                     ;}
     break;
 
-  case 70:
+  case 71:
 
     {
                       result->cur_stmt_type_ = OBPROXY_T_TEXT_PS_EXECUTE;
@@ -3074,7 +3037,7 @@ YYLTYPE yylloc;
                     ;}
     break;
 
-  case 71:
+  case 72:
 
     {
                       result->cur_stmt_type_ = OBPROXY_T_TEXT_PS_EXECUTE;
@@ -3082,19 +3045,19 @@ YYLTYPE yylloc;
                     ;}
     break;
 
-  case 72:
+  case 73:
 
     {
             ;}
     break;
 
-  case 73:
+  case 74:
 
     {
             ;}
     break;
 
-  case 74:
+  case 75:
 
     {
               result->cur_stmt_type_ = OBPROXY_T_TEXT_PS_DROP;
@@ -3102,7 +3065,7 @@ YYLTYPE yylloc;
             ;}
     break;
 
-  case 75:
+  case 76:
 
     {
               result->cur_stmt_type_ = OBPROXY_T_TEXT_PS_DROP;
@@ -3110,74 +3073,74 @@ YYLTYPE yylloc;
             ;}
     break;
 
-  case 76:
+  case 77:
 
     { result->cur_stmt_type_ = OBPROXY_T_GRANT; ;}
     break;
 
-  case 77:
+  case 78:
 
     { result->cur_stmt_type_ = OBPROXY_T_REVOKE; ;}
     break;
 
-  case 78:
+  case 79:
 
     { result->cur_stmt_type_ = OBPROXY_T_ANALYZE; ;}
     break;
 
-  case 79:
+  case 80:
 
     { result->cur_stmt_type_ = OBPROXY_T_PURGE; ;}
     break;
 
-  case 80:
+  case 81:
 
     { result->cur_stmt_type_ = OBPROXY_T_FLASHBACK; ;}
     break;
 
-  case 81:
+  case 82:
 
     { result->cur_stmt_type_ = OBPROXY_T_COMMENT; ;}
     break;
 
-  case 82:
+  case 83:
 
     { result->cur_stmt_type_ = OBPROXY_T_AUDIT; ;}
     break;
 
-  case 83:
+  case 84:
 
     { result->cur_stmt_type_ = OBPROXY_T_NOAUDIT; ;}
     break;
 
-  case 86:
+  case 87:
 
     {;}
     break;
 
-  case 87:
+  case 88:
 
     {;}
     break;
 
-  case 88:
+  case 89:
 
     {;}
     break;
 
-  case 93:
+  case 94:
 
     { result->cur_stmt_type_ = OBPROXY_T_SELECT_TX_RO; ;}
     break;
 
-  case 97:
+  case 98:
 
     { result->col_name_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 98:
+  case 99:
 
-    { result->cur_stmt_type_ = OBPROXY_T_SET_AC_0; ;}
+    {;}
     break;
 
   case 100:
@@ -3217,17 +3180,17 @@ YYLTYPE yylloc;
 
   case 107:
 
-    {;}
+    { result->sub_stmt_type_ = OBPROXY_T_SUB_SELECT_DATABASE; ;}
     break;
 
   case 108:
 
-    { result->sub_stmt_type_ = OBPROXY_T_SUB_SELECT_DATABASE; ;}
+    { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_DATABASES; ;}
     break;
 
   case 109:
 
-    { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_DATABASES; ;}
+    {;}
     break;
 
   case 110:
@@ -3247,23 +3210,19 @@ YYLTYPE yylloc;
 
   case 113:
 
-    {;}
-    break;
-
-  case 114:
-
     { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_CREATE_TABLE; ;}
     break;
 
-  case 115:
+  case 114:
 
     {
+                      result->table_info_.table_name_ = (yyvsp[(2) - (2)].str);
                       result->cur_stmt_type_ = OBPROXY_T_DESC;
                       result->sub_stmt_type_ = OBPROXY_T_SUB_DESC_TABLE;
                   ;}
     break;
 
-  case 116:
+  case 115:
 
     {
                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_COLUMNS;
@@ -3271,7 +3230,7 @@ YYLTYPE yylloc;
                   ;}
     break;
 
-  case 117:
+  case 116:
 
     {
                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_COLUMNS;
@@ -3280,7 +3239,7 @@ YYLTYPE yylloc;
                   ;}
     break;
 
-  case 118:
+  case 117:
 
     {
                  result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_INDEX;
@@ -3288,7 +3247,7 @@ YYLTYPE yylloc;
                ;}
     break;
 
-  case 119:
+  case 118:
 
     {
                  result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_INDEX;
@@ -3297,98 +3256,106 @@ YYLTYPE yylloc;
                ;}
     break;
 
-  case 120:
+  case 119:
 
     {;}
     break;
 
-  case 121:
+  case 120:
 
     { result->table_info_.table_name_ = (yyvsp[(2) - (2)].str); ;}
     break;
 
-  case 122:
+  case 121:
 
     {;}
     break;
 
-  case 123:
+  case 122:
 
     { result->table_info_.database_name_ = (yyvsp[(2) - (2)].str); ;}
     break;
 
-  case 124:
+  case 123:
 
     {
                   result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TABLES;
                 ;}
     break;
 
-  case 125:
+  case 124:
 
     {
                   result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_FULL_TABLES;
                 ;}
     break;
 
-  case 126:
+  case 125:
 
     {
                         result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TABLE_STATUS;
                       ;}
     break;
 
-  case 127:
+  case 126:
 
     { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_DB_VERSION; ;}
     break;
 
-  case 128:
+  case 127:
 
-    { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY; ;}
+    { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_ELASTIC_ID; ;}
     break;
 
-  case 129:
+  case 128:
 
     {
                      SET_ICMD_ONE_STRING((yyvsp[(3) - (3)].str));
-                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY;
+                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_ELASTIC_ID;
                  ;}
     break;
 
-  case 130:
+  case 129:
 
     {
                      SET_ICMD_SECOND_STRING((yyvsp[(5) - (5)].str));
-                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY;
+                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_ELASTIC_ID;
                  ;}
     break;
 
-  case 131:
+  case 130:
 
     {
                      SET_ICMD_ONE_STRING((yyvsp[(3) - (7)].str));
                      SET_ICMD_SECOND_STRING((yyvsp[(7) - (7)].str));
-                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY;
+                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_ELASTIC_ID;
                  ;}
     break;
 
+  case 131:
+
+    { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY; ;}
+    break;
+
   case 132:
 
-    { result->cur_stmt_type_ = OBPROXY_T_SELECT_ROUTE_ADDR; ;}
+    {
+                     result->table_info_.table_name_ = (yyvsp[(3) - (3)].str);
+                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY;
+                 ;}
     break;
 
   case 133:
 
-    {
-                              result->cur_stmt_type_ = OBPROXY_T_SET_ROUTE_ADDR;
-                              result->cmd_info_.integer_[0] = (yyvsp[(3) - (3)].num);
-                           ;}
+    { result->cur_stmt_type_ = OBPROXY_T_SELECT_ROUTE_ADDR; ;}
     break;
 
   case 134:
 
-    {;}
+    {
+                              result->cur_stmt_type_ = OBPROXY_T_SET_ROUTE_ADDR;
+                              result->cmd_info_.integer_[0] = (yyvsp[(3) - (3)].num);
+                           ;}
     break;
 
   case 135:
@@ -3416,14 +3383,19 @@ YYLTYPE yylloc;
     {;}
     break;
 
-  case 141:
+  case 140:
+
+    {;}
+    break;
+
+  case 142:
 
     {
                    result->table_info_.table_name_ = (yyvsp[(1) - (1)].str);
                  ;}
     break;
 
-  case 142:
+  case 143:
 
     {
                    result->table_info_.package_name_ = (yyvsp[(1) - (3)].str);
@@ -3431,7 +3403,7 @@ YYLTYPE yylloc;
                  ;}
     break;
 
-  case 143:
+  case 144:
 
     {
                    result->table_info_.database_name_ = (yyvsp[(1) - (5)].str);
@@ -3440,14 +3412,14 @@ YYLTYPE yylloc;
                  ;}
     break;
 
-  case 144:
+  case 145:
 
     {
                 result->call_parse_info_.node_count_ = 0;
               ;}
     break;
 
-  case 145:
+  case 146:
 
     {
                 result->call_parse_info_.node_count_ = 0;
@@ -3455,14 +3427,14 @@ YYLTYPE yylloc;
               ;}
     break;
 
-  case 146:
+  case 147:
 
     {
                 add_call_node(result->call_parse_info_, (yyvsp[(3) - (3)].node));
               ;}
     break;
 
-  case 147:
+  case 148:
 
     {
             malloc_call_node((yyval.node), CALL_TOKEN_STR_VAL);
@@ -3470,7 +3442,7 @@ YYLTYPE yylloc;
          ;}
     break;
 
-  case 148:
+  case 149:
 
     {
            malloc_call_node((yyval.node), CALL_TOKEN_INT_VAL);
@@ -3478,7 +3450,7 @@ YYLTYPE yylloc;
          ;}
     break;
 
-  case 149:
+  case 150:
 
     {
            malloc_call_node((yyval.node), CALL_TOKEN_NUMBER_VAL);
@@ -3486,7 +3458,7 @@ YYLTYPE yylloc;
          ;}
     break;
 
-  case 150:
+  case 151:
 
     {
            malloc_call_node((yyval.node), CALL_TOKEN_USER_VAR);
@@ -3494,7 +3466,7 @@ YYLTYPE yylloc;
          ;}
     break;
 
-  case 151:
+  case 152:
 
     {
            malloc_call_node((yyval.node), CALL_TOKEN_SYS_VAR);
@@ -3502,7 +3474,7 @@ YYLTYPE yylloc;
          ;}
     break;
 
-  case 152:
+  case 153:
 
     {
            result->placeholder_list_idx_++;
@@ -3511,7 +3483,7 @@ YYLTYPE yylloc;
          ;}
     break;
 
-  case 166:
+  case 167:
 
     {
                                                                   handle_stmt_end(result);
@@ -3519,7 +3491,7 @@ YYLTYPE yylloc;
                                                                 ;}
     break;
 
-  case 171:
+  case 172:
 
     {
                                                  handle_stmt_end(result);
@@ -3527,56 +3499,56 @@ YYLTYPE yylloc;
                                                ;}
     break;
 
-  case 175:
+  case 176:
 
     {
           add_set_var_node(result->set_parse_info_, (yyvsp[(4) - (4)].var_node), (yyvsp[(2) - (4)].str), SET_VAR_USER);
         ;}
     break;
 
-  case 176:
+  case 177:
 
     {
           add_set_var_node(result->set_parse_info_, (yyvsp[(6) - (6)].var_node), (yyvsp[(4) - (6)].str), SET_VAR_SYS);
         ;}
     break;
 
-  case 177:
+  case 178:
 
     {
           add_set_var_node(result->set_parse_info_, (yyvsp[(4) - (4)].var_node), (yyvsp[(2) - (4)].str), SET_VAR_SYS);
         ;}
     break;
 
-  case 178:
+  case 179:
 
     {
           add_set_var_node(result->set_parse_info_, (yyvsp[(5) - (5)].var_node), (yyvsp[(3) - (5)].str), SET_VAR_SYS);
         ;}
     break;
 
-  case 179:
+  case 180:
 
     {
           add_set_var_node(result->set_parse_info_, (yyvsp[(6) - (6)].var_node), (yyvsp[(4) - (6)].str), SET_VAR_SYS);
         ;}
     break;
 
-  case 180:
+  case 181:
 
     {
           add_set_var_node(result->set_parse_info_, (yyvsp[(4) - (4)].var_node), (yyvsp[(2) - (4)].str), SET_VAR_SYS);
         ;}
     break;
 
-  case 181:
+  case 182:
 
     {
           add_set_var_node(result->set_parse_info_, (yyvsp[(3) - (3)].var_node), (yyvsp[(1) - (3)].str), SET_VAR_SYS);
         ;}
     break;
 
-  case 182:
+  case 183:
 
     {
                malloc_set_var_node((yyval.var_node), SET_VALUE_TYPE_STR);
@@ -3584,7 +3556,7 @@ YYLTYPE yylloc;
              ;}
     break;
 
-  case 183:
+  case 184:
 
     {
                malloc_set_var_node((yyval.var_node), SET_VALUE_TYPE_INT);
@@ -3592,7 +3564,7 @@ YYLTYPE yylloc;
              ;}
     break;
 
-  case 184:
+  case 185:
 
     {
                malloc_set_var_node((yyval.var_node), SET_VALUE_TYPE_NUMBER);
@@ -3600,42 +3572,42 @@ YYLTYPE yylloc;
              ;}
     break;
 
-  case 187:
+  case 188:
 
     {;}
     break;
 
-  case 188:
+  case 189:
 
     {;}
     break;
 
-  case 189:
+  case 190:
 
     { result->dbmesh_route_info_.tb_idx_str_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 190:
+  case 191:
 
     { result->dbmesh_route_info_.table_name_str_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 191:
+  case 192:
 
     { result->dbmesh_route_info_.group_idx_str_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 192:
+  case 193:
 
     { result->dbmesh_route_info_.es_idx_str_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 193:
+  case 194:
 
     { result->dbmesh_route_info_.testload_str_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 194:
+  case 195:
 
     {
               malloc_shard_column_node((yyval.shard_node), (yyvsp[(2) - (7)].str), (yyvsp[(3) - (7)].str), DBMESH_TOKEN_STR_VAL);
@@ -3644,52 +3616,57 @@ YYLTYPE yylloc;
             ;}
     break;
 
-  case 195:
+  case 196:
 
     { result->trace_id_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 196:
+  case 197:
 
     { result->rpc_id_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 197:
+  case 198:
 
     { result->dbmesh_route_info_.tnt_id_str_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 198:
+  case 199:
 
     { result->dbmesh_route_info_.disaster_status_str_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 199:
+  case 200:
 
     {;}
     break;
 
-  case 200:
+  case 201:
 
     {;}
     break;
 
-  case 201:
+  case 202:
 
-    {;}
+    { result->target_db_server_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
   case 203:
 
+    {;}
+    break;
+
+  case 205:
+
     { result->has_simple_route_info_ = true; result->simple_route_info_.table_name_ = (yyvsp[(2) - (2)].str); ;}
     break;
 
-  case 204:
+  case 206:
 
     { result->simple_route_info_.part_key_ = (yyvsp[(2) - (2)].str); ;}
     break;
 
-  case 208:
+  case 210:
 
     {
               result->dbp_route_info_.has_group_info_ = true;
@@ -3697,7 +3674,7 @@ YYLTYPE yylloc;
             ;}
     break;
 
-  case 209:
+  case 211:
 
     {
               result->dbp_route_info_.has_group_info_ = true;
@@ -3705,37 +3682,42 @@ YYLTYPE yylloc;
             ;}
     break;
 
-  case 210:
+  case 212:
 
     { result->dbp_route_info_.scan_all_ = true; ;}
     break;
 
-  case 211:
+  case 213:
 
     { result->dbp_route_info_.scan_all_ = true; ;}
     break;
 
-  case 212:
+  case 214:
+
+    { result->dbp_route_info_.sticky_session_ = true; ;}
+    break;
+
+  case 215:
 
     {result->dbp_route_info_.has_shard_key_ = true;;}
     break;
 
-  case 213:
+  case 216:
 
     { result->trace_id_ = (yyvsp[(3) - (4)].str); ;}
     break;
 
-  case 214:
+  case 217:
 
     { result->trace_id_ = (yyvsp[(3) - (6)].str); result->rpc_id_ = (yyvsp[(5) - (6)].str); ;}
     break;
 
-  case 215:
+  case 218:
 
     {;}
     break;
 
-  case 217:
+  case 220:
 
     {
                    if (result->dbp_route_info_.shard_key_count_ < OBPROXY_MAX_DBP_SHARD_KEY_NUM) {
@@ -3746,52 +3728,57 @@ YYLTYPE yylloc;
                  ;}
     break;
 
-  case 220:
+  case 223:
 
     { result->dbmesh_route_info_.group_idx_str_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 221:
+  case 224:
 
     { result->dbmesh_route_info_.tb_idx_str_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 222:
+  case 225:
 
     { result->dbmesh_route_info_.table_name_str_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 223:
+  case 226:
 
     { result->dbmesh_route_info_.es_idx_str_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 224:
+  case 227:
 
     { result->dbmesh_route_info_.testload_str_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 225:
+  case 228:
 
     { result->trace_id_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 226:
+  case 229:
 
     { result->rpc_id_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 227:
+  case 230:
 
     { result->dbmesh_route_info_.tnt_id_str_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 228:
+  case 231:
 
     { result->dbmesh_route_info_.disaster_status_str_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 229:
+  case 232:
+
+    { result->target_db_server_ = (yyvsp[(3) - (3)].str); ;}
+    break;
+
+  case 233:
 
     {
              malloc_shard_column_node((yyval.shard_node), (yyvsp[(1) - (5)].str), (yyvsp[(3) - (5)].str), DBMESH_TOKEN_STR_VAL);
@@ -3800,32 +3787,32 @@ YYLTYPE yylloc;
            ;}
     break;
 
-  case 230:
+  case 234:
 
     {;}
     break;
 
-  case 231:
+  case 235:
 
     { (yyval.str).str_ = NULL; (yyval.str).str_len_ = 0; ;}
     break;
 
-  case 233:
+  case 237:
 
     { (yyval.str).str_ = NULL; (yyval.str).str_len_ = 0; ;}
     break;
 
-  case 255:
+  case 259:
 
     { result->query_timeout_ = (yyvsp[(3) - (4)].num); ;}
     break;
 
-  case 256:
+  case 260:
 
     {;}
     break;
 
-  case 258:
+  case 262:
 
     {
       add_hint_index(result->dbmesh_route_info_, (yyvsp[(3) - (5)].str));
@@ -3833,75 +3820,105 @@ YYLTYPE yylloc;
     ;}
     break;
 
-  case 259:
+  case 263:
 
     {;}
     break;
 
-  case 260:
+  case 264:
 
     {;}
     break;
 
-  case 261:
+  case 265:
 
     {;}
     break;
 
-  case 262:
+  case 266:
 
     {;}
     break;
 
-  case 263:
+  case 267:
 
     {;}
     break;
 
-  case 264:
+  case 268:
 
     { SET_READ_CONSISTENCY(OBPROXY_READ_CONSISTENCY_WEAK); ;}
     break;
 
-  case 265:
+  case 269:
 
     { SET_READ_CONSISTENCY(OBPROXY_READ_CONSISTENCY_STRONG); ;}
     break;
 
-  case 266:
+  case 270:
 
     { SET_READ_CONSISTENCY(OBPROXY_READ_CONSISTENCY_FROZEN); ;}
     break;
 
-  case 269:
+  case 273:
 
     { result->cur_stmt_type_ = OBPROXY_T_SHOW_WARNINGS; ;}
     break;
 
-  case 270:
+  case 274:
 
     { result->cur_stmt_type_ = OBPROXY_T_SHOW_ERRORS; ;}
     break;
 
-  case 271:
+  case 275:
 
     { result->cur_stmt_type_ = OBPROXY_T_SHOW_TRACE; ;}
     break;
 
-  case 295:
+  case 299:
+
+    {;}
+    break;
+
+  case 300:
+
+    {;}
+    break;
+
+  case 301:
+
+    {;}
+    break;
+
+  case 302:
+
+    {;}
+    break;
+
+  case 303:
+
+    {;}
+    break;
+
+  case 304:
+
+    {;}
+    break;
+
+  case 305:
 
     {
 ;}
     break;
 
-  case 296:
+  case 306:
 
     {
    result->cmd_info_.integer_[2] = (yyvsp[(2) - (2)].num);/*row*/
 ;}
     break;
 
-  case 297:
+  case 307:
 
     {
    result->cmd_info_.integer_[1] = (yyvsp[(2) - (4)].num);/*offset*/
@@ -3909,7 +3926,7 @@ YYLTYPE yylloc;
 ;}
     break;
 
-  case 298:
+  case 308:
 
     {
    result->cmd_info_.integer_[1] = (yyvsp[(4) - (4)].num);/*offset*/
@@ -3917,342 +3934,342 @@ YYLTYPE yylloc;
 ;}
     break;
 
-  case 299:
+  case 309:
 
     {;}
     break;
 
-  case 300:
+  case 310:
 
     { result->cmd_info_.string_[0] = (yyvsp[(2) - (2)].str);;}
     break;
 
-  case 301:
+  case 311:
 
     {;}
     break;
 
-  case 302:
+  case 312:
 
     { result->cmd_info_.string_[1] = (yyvsp[(2) - (2)].str);;}
     break;
 
-  case 304:
+  case 314:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_NET_THREAD); ;}
     break;
 
-  case 305:
+  case 315:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_NET_CONNECTION); ;}
     break;
 
-  case 306:
+  case 316:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_NET_CONNECTION, (yyvsp[(2) - (3)].num)); ;}
     break;
 
-  case 307:
+  case 317:
 
     {;}
     break;
 
-  case 308:
+  case 318:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_CONFIG_DIFF); ;}
     break;
 
-  case 309:
+  case 319:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_CONFIG_DIFF_USER); ;}
     break;
 
-  case 310:
+  case 320:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_SESSION_LIST); ;}
     break;
 
-  case 312:
+  case 322:
 
     {SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_GLOBAL_SESSION_LIST);;}
     break;
 
-  case 313:
+  case 323:
 
     {SET_ICMD_SUB_AND_ONE_STRING(OBPROXY_T_SUB_GLOBAL_SESSION_LIST_INFO, (yyvsp[(2) - (2)].str));;}
     break;
 
-  case 314:
+  case 324:
 
     {SET_ICMD_SUB_AND_ONE_STRING(OBPROXY_T_SUB_GLOBAL_SESSION_LIST_LIKE, (yyvsp[(3) - (3)].str));;}
     break;
 
-  case 315:
+  case 325:
 
     {SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_GLOBAL_SESSION_LIST_INFO_ALL);;}
     break;
 
-  case 316:
+  case 326:
 
     {result->cmd_info_.string_[0] = (yyvsp[(2) - (2)].str);;}
     break;
 
-  case 318:
+  case 328:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_SESSION_LIST_INTERNAL); ;}
     break;
 
-  case 319:
+  case 329:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_SESSION_ATTRIBUTE); ;}
     break;
 
-  case 320:
+  case 330:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_SESSION_ATTRIBUTE, (yyvsp[(2) - (3)].num)); ;}
     break;
 
-  case 321:
+  case 331:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_SESSION_STAT); ;}
     break;
 
-  case 322:
+  case 332:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_SESSION_STAT, (yyvsp[(2) - (3)].num)); ;}
     break;
 
-  case 323:
+  case 333:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_SESSION_VARIABLES_LOCAL); ;}
     break;
 
-  case 324:
+  case 334:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_SESSION_VARIABLES_LOCAL, (yyvsp[(2) - (3)].num)); ;}
     break;
 
-  case 325:
+  case 335:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_SESSION_VARIABLES_ALL); ;}
     break;
 
-  case 326:
+  case 336:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_SESSION_VARIABLES_ALL, (yyvsp[(3) - (4)].num)); ;}
     break;
 
-  case 327:
+  case 337:
 
     {;}
     break;
 
-  case 328:
+  case 338:
 
     { SET_ICMD_ONE_ID((yyvsp[(2) - (2)].num)); ;}
     break;
 
-  case 329:
+  case 339:
 
     {;}
     break;
 
-  case 330:
+  case 340:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_INFO_IDC); ;}
     break;
 
-  case 331:
+  case 341:
 
     {;}
     break;
 
-  case 333:
+  case 343:
 
     {;}
     break;
 
-  case 334:
+  case 344:
 
     { SET_ICMD_ONE_STRING((yyvsp[(1) - (1)].str)); ;}
     break;
 
-  case 335:
+  case 345:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_CONGEST_ALL);;}
     break;
 
-  case 336:
+  case 346:
 
     { SET_ICMD_SUB_AND_ONE_STRING(OBPROXY_T_SUB_CONGEST_ALL, (yyvsp[(2) - (2)].str));;}
     break;
 
-  case 337:
+  case 347:
 
     {;}
     break;
 
-  case 338:
+  case 348:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_ROUTE_ROUTINE); ;}
     break;
 
-  case 339:
+  case 349:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_ROUTE_PARTITION); ;}
     break;
 
-  case 340:
+  case 350:
 
     {;}
     break;
 
-  case 341:
+  case 351:
 
     { SET_ICMD_ONE_STRING((yyvsp[(2) - (2)].str)); ;}
     break;
 
-  case 342:
+  case 352:
 
     {;}
     break;
 
-  case 343:
+  case 353:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_MEMORY_OBJPOOL); ;}
     break;
 
-  case 344:
+  case 354:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_SQLAUDIT_AUDIT_ID); ;}
     break;
 
-  case 345:
+  case 355:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_SQLAUDIT_SM_ID, (yyvsp[(2) - (2)].num)); ;}
     break;
 
-  case 347:
+  case 357:
 
     {;}
     break;
 
-  case 348:
+  case 358:
 
     { SET_ICMD_SECOND_ID((yyvsp[(1) - (1)].num)); ;}
     break;
 
-  case 349:
+  case 359:
 
     { SET_ICMD_TWO_ID((yyvsp[(3) - (3)].num), (yyvsp[(1) - (3)].num)); ;}
     break;
 
-  case 350:
+  case 360:
 
     { SET_ICMD_TWO_ID((yyvsp[(3) - (5)].num), (yyvsp[(1) - (5)].num)); SET_ICMD_ONE_STRING((yyvsp[(5) - (5)].str)); ;}
     break;
 
-  case 351:
+  case 361:
 
     {;}
     break;
 
-  case 352:
+  case 362:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_STAT_REFRESH); ;}
     break;
 
-  case 354:
+  case 364:
 
     {;}
     break;
 
-  case 355:
+  case 365:
 
     { SET_ICMD_ONE_ID((yyvsp[(1) - (1)].num));  ;}
     break;
 
-  case 356:
+  case 366:
 
     { SET_ICMD_SUB_AND_TWO_ID(OBPROXY_T_SUB_TRACE_LIMIT, (yyvsp[(1) - (2)].num),(yyvsp[(2) - (2)].num)); ;}
     break;
 
-  case 357:
+  case 367:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_INFO_BINARY); ;}
     break;
 
-  case 358:
+  case 368:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_INFO_UPGRADE); ;}
     break;
 
-  case 359:
+  case 369:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_INFO_IDC); ;}
     break;
 
-  case 360:
+  case 370:
 
     { SET_ICMD_ONE_STRING((yyvsp[(3) - (4)].str)); ;}
     break;
 
-  case 361:
+  case 371:
 
     { SET_ICMD_TWO_STRING((yyvsp[(3) - (5)].str), (yyvsp[(5) - (5)].str)); ;}
     break;
 
-  case 362:
+  case 372:
 
     { SET_ICMD_CONFIG_INT_VALUE((yyvsp[(3) - (5)].str), (yyvsp[(5) - (5)].num)); ;}
     break;
 
-  case 363:
+  case 373:
 
     { SET_ICMD_ONE_STRING((yyvsp[(3) - (3)].str)); ;}
     break;
 
-  case 364:
+  case 374:
 
     {;}
     break;
 
-  case 365:
+  case 375:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_KILL_CS, (yyvsp[(2) - (2)].num)); ;}
     break;
 
-  case 366:
+  case 376:
 
     { SET_ICMD_SUB_AND_TWO_ID(OBPROXY_T_SUB_KILL_SS, (yyvsp[(2) - (3)].num), (yyvsp[(3) - (3)].num)); ;}
     break;
 
-  case 367:
+  case 377:
 
     {SET_ICMD_TYPE_STRING_INT_VALUE(OBPROXY_T_SUB_KILL_GLOBAL_SS_ID, (yyvsp[(2) - (3)].str),(yyvsp[(3) - (3)].num));;}
     break;
 
-  case 368:
+  case 378:
 
     {SET_ICMD_SUB_AND_ONE_STRING(OBPROXY_T_SUB_KILL_GLOBAL_SS_DBKEY, (yyvsp[(2) - (2)].str));;}
     break;
 
-  case 369:
+  case 379:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_KILL_CONNECTION, (yyvsp[(2) - (2)].num)); ;}
     break;
 
-  case 370:
+  case 380:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_KILL_CONNECTION, (yyvsp[(3) - (3)].num)); ;}
     break;
 
-  case 371:
+  case 381:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_KILL_QUERY, (yyvsp[(3) - (3)].num)); ;}
     break;
 
-  case 374:
+  case 384:
 
     {
                                                                 result->has_anonymous_block_ = false ;
@@ -4260,22 +4277,22 @@ YYLTYPE yylloc;
                                                               ;}
     break;
 
-  case 375:
+  case 385:
 
     { result->cur_stmt_type_ = OBPROXY_T_BEGIN; ;}
     break;
 
-  case 376:
+  case 386:
 
     { result->cur_stmt_type_ = OBPROXY_T_BEGIN; ;}
     break;
 
-  case 377:
+  case 387:
 
     { result->cur_stmt_type_ = OBPROXY_T_BEGIN; ;}
     break;
 
-  case 384:
+  case 394:
 
     {
                             result->cur_stmt_type_ = OBPROXY_T_USE_DB;
@@ -4283,27 +4300,27 @@ YYLTYPE yylloc;
                           ;}
     break;
 
-  case 385:
+  case 395:
 
     { result->cur_stmt_type_ = OBPROXY_T_HELP; ;}
     break;
 
-  case 387:
+  case 397:
 
     {;}
     break;
 
-  case 388:
+  case 398:
 
     { result->part_name_ = (yyvsp[(2) - (2)].str); ;}
     break;
 
-  case 389:
+  case 399:
 
     { result->part_name_ = (yyvsp[(3) - (4)].str); ;}
     break;
 
-  case 390:
+  case 400:
 
     {
                                                   handle_stmt_end(result);
@@ -4311,14 +4328,14 @@ YYLTYPE yylloc;
                                                 ;}
     break;
 
-  case 391:
+  case 401:
 
     {
                           result->table_info_.table_name_ = (yyvsp[(1) - (1)].str);
                         ;}
     break;
 
-  case 392:
+  case 402:
 
     {
                                       result->table_info_.database_name_ = (yyvsp[(1) - (3)].str);
@@ -4326,7 +4343,7 @@ YYLTYPE yylloc;
                                     ;}
     break;
 
-  case 393:
+  case 403:
 
     {
                                     UPDATE_ALIAS_NAME((yyvsp[(2) - (2)].str));
@@ -4334,7 +4351,7 @@ YYLTYPE yylloc;
                                   ;}
     break;
 
-  case 394:
+  case 404:
 
     {
                                                 UPDATE_ALIAS_NAME((yyvsp[(4) - (4)].str));
@@ -4343,7 +4360,7 @@ YYLTYPE yylloc;
                                               ;}
     break;
 
-  case 395:
+  case 405:
 
     {
                                       UPDATE_ALIAS_NAME((yyvsp[(3) - (3)].str));
@@ -4351,7 +4368,7 @@ YYLTYPE yylloc;
                                     ;}
     break;
 
-  case 396:
+  case 406:
 
     {
                                                   UPDATE_ALIAS_NAME((yyvsp[(5) - (5)].str));
diff --git a/src/obproxy/opsql/parser/ob_proxy_parser_gbk_tab.h b/src/obproxy/opsql/parser/ob_proxy_parser_gbk_tab.h
index df8485c1..6ecd470a 100644
--- a/src/obproxy/opsql/parser/ob_proxy_parser_gbk_tab.h
+++ b/src/obproxy/opsql/parser/ob_proxy_parser_gbk_tab.h
@@ -134,96 +134,104 @@ extern int ob_proxy_parser_gbk_yydebug;
      UNION = 333,
      FOR = 334,
      TX_READ_ONLY = 335,
-     AUTOCOMMIT_0 = 336,
-     SELECT_OBPROXY_ROUTE_ADDR = 337,
-     SET_OBPROXY_ROUTE_ADDR = 338,
-     NAME_OB_DOT = 339,
-     NAME_OB = 340,
-     EXPLAIN = 341,
-     DESC = 342,
-     DESCRIBE = 343,
-     NAME_STR = 344,
-     USE = 345,
-     HELP = 346,
-     SET_NAMES = 347,
-     SET_CHARSET = 348,
-     SET_PASSWORD = 349,
-     SET_DEFAULT = 350,
-     SET_OB_READ_CONSISTENCY = 351,
-     SET_TX_READ_ONLY = 352,
-     GLOBAL = 353,
-     SESSION = 354,
-     NUMBER_VAL = 355,
-     GROUP_ID = 356,
-     TABLE_ID = 357,
-     ELASTIC_ID = 358,
-     TESTLOAD = 359,
-     ODP_COMMENT = 360,
-     TNT_ID = 361,
-     DISASTER_STATUS = 362,
-     TRACE_ID = 363,
-     RPC_ID = 364,
+     SELECT_OBPROXY_ROUTE_ADDR = 336,
+     SET_OBPROXY_ROUTE_ADDR = 337,
+     NAME_OB_DOT = 338,
+     NAME_OB = 339,
+     EXPLAIN = 340,
+     DESC = 341,
+     DESCRIBE = 342,
+     NAME_STR = 343,
+     USE = 344,
+     HELP = 345,
+     SET_NAMES = 346,
+     SET_CHARSET = 347,
+     SET_PASSWORD = 348,
+     SET_DEFAULT = 349,
+     SET_OB_READ_CONSISTENCY = 350,
+     SET_TX_READ_ONLY = 351,
+     GLOBAL = 352,
+     SESSION = 353,
+     NUMBER_VAL = 354,
+     GROUP_ID = 355,
+     TABLE_ID = 356,
+     ELASTIC_ID = 357,
+     TESTLOAD = 358,
+     ODP_COMMENT = 359,
+     TNT_ID = 360,
+     DISASTER_STATUS = 361,
+     TRACE_ID = 362,
+     RPC_ID = 363,
+     TARGET_DB_SERVER = 364,
      DBP_COMMENT = 365,
      ROUTE_TAG = 366,
      SYS_TAG = 367,
      TABLE_NAME = 368,
      SCAN_ALL = 369,
-     PARALL = 370,
-     SHARD_KEY = 371,
-     INT_NUM = 372,
-     SHOW_PROXYNET = 373,
-     THREAD = 374,
-     CONNECTION = 375,
-     LIMIT = 376,
-     OFFSET = 377,
-     SHOW_PROCESSLIST = 378,
-     SHOW_PROXYSESSION = 379,
-     SHOW_GLOBALSESSION = 380,
-     ATTRIBUTE = 381,
-     VARIABLES = 382,
-     ALL = 383,
-     STAT = 384,
-     SHOW_PROXYCONFIG = 385,
-     DIFF = 386,
-     USER = 387,
-     LIKE = 388,
-     SHOW_PROXYSM = 389,
-     SHOW_PROXYCLUSTER = 390,
-     SHOW_PROXYRESOURCE = 391,
-     SHOW_PROXYCONGESTION = 392,
-     SHOW_PROXYROUTE = 393,
-     PARTITION = 394,
-     ROUTINE = 395,
-     SHOW_PROXYVIP = 396,
-     SHOW_PROXYMEMORY = 397,
-     OBJPOOL = 398,
-     SHOW_SQLAUDIT = 399,
-     SHOW_WARNLOG = 400,
-     SHOW_PROXYSTAT = 401,
-     REFRESH = 402,
-     SHOW_PROXYTRACE = 403,
-     SHOW_PROXYINFO = 404,
-     BINARY = 405,
-     UPGRADE = 406,
-     IDC = 407,
-     SHOW_TOPOLOGY = 408,
-     GROUP_NAME = 409,
-     SHOW_DB_VERSION = 410,
-     SHOW_DATABASES = 411,
-     SHOW_TABLES = 412,
-     SHOW_FULL_TABLES = 413,
-     SELECT_DATABASE = 414,
-     SHOW_CREATE_TABLE = 415,
-     SELECT_PROXY_VERSION = 416,
-     SHOW_COLUMNS = 417,
-     SHOW_INDEX = 418,
-     ALTER_PROXYCONFIG = 419,
-     ALTER_PROXYRESOURCE = 420,
-     PING_PROXY = 421,
-     KILL_PROXYSESSION = 422,
-     KILL_GLOBALSESSION = 423,
-     KILL = 424,
-     QUERY = 425
+     STICKY_SESSION = 370,
+     PARALL = 371,
+     SHARD_KEY = 372,
+     INT_NUM = 373,
+     SHOW_PROXYNET = 374,
+     THREAD = 375,
+     CONNECTION = 376,
+     LIMIT = 377,
+     OFFSET = 378,
+     SHOW_PROCESSLIST = 379,
+     SHOW_PROXYSESSION = 380,
+     SHOW_GLOBALSESSION = 381,
+     ATTRIBUTE = 382,
+     VARIABLES = 383,
+     ALL = 384,
+     STAT = 385,
+     SHOW_PROXYCONFIG = 386,
+     DIFF = 387,
+     USER = 388,
+     LIKE = 389,
+     SHOW_PROXYSM = 390,
+     SHOW_PROXYCLUSTER = 391,
+     SHOW_PROXYRESOURCE = 392,
+     SHOW_PROXYCONGESTION = 393,
+     SHOW_PROXYROUTE = 394,
+     PARTITION = 395,
+     ROUTINE = 396,
+     SHOW_PROXYVIP = 397,
+     SHOW_PROXYMEMORY = 398,
+     OBJPOOL = 399,
+     SHOW_SQLAUDIT = 400,
+     SHOW_WARNLOG = 401,
+     SHOW_PROXYSTAT = 402,
+     REFRESH = 403,
+     SHOW_PROXYTRACE = 404,
+     SHOW_PROXYINFO = 405,
+     BINARY = 406,
+     UPGRADE = 407,
+     IDC = 408,
+     SHOW_ELASTIC_ID = 409,
+     SHOW_TOPOLOGY = 410,
+     GROUP_NAME = 411,
+     SHOW_DB_VERSION = 412,
+     SHOW_DATABASES = 413,
+     SHOW_TABLES = 414,
+     SHOW_FULL_TABLES = 415,
+     SELECT_DATABASE = 416,
+     SHOW_CREATE_TABLE = 417,
+     SELECT_PROXY_VERSION = 418,
+     SHOW_COLUMNS = 419,
+     SHOW_INDEX = 420,
+     ALTER_PROXYCONFIG = 421,
+     ALTER_PROXYRESOURCE = 422,
+     PING_PROXY = 423,
+     KILL_PROXYSESSION = 424,
+     KILL_GLOBALSESSION = 425,
+     KILL = 426,
+     QUERY = 427,
+     SHOW_MASTER_STATUS = 428,
+     SHOW_BINARY_LOGS = 429,
+     SHOW_BINLOG_EVENTS = 430,
+     PURGE_BINARY_LOGS = 431,
+     RESET_MASTER = 432,
+     SHOW_BINLOG_SERVER_FOR_TENANT = 433
    };
 #endif
 
diff --git a/src/obproxy/opsql/parser/ob_proxy_parser_utf8_lex.c b/src/obproxy/opsql/parser/ob_proxy_parser_utf8_lex.c
index b7c45705..b220208d 100644
--- a/src/obproxy/opsql/parser/ob_proxy_parser_utf8_lex.c
+++ b/src/obproxy/opsql/parser/ob_proxy_parser_utf8_lex.c
@@ -348,8 +348,8 @@ static void yy_fatal_error (yyconst char msg[] ,yyscan_t yyscanner );
 	yyg->yy_hold_char = *yy_cp; \
 	yyg->yy_c_buf_p = yy_cp;
 
-#define YY_NUM_RULES 336
-#define YY_END_OF_BUFFER 337
+#define YY_NUM_RULES 344
+#define YY_END_OF_BUFFER 345
 /* This struct is not used in this scanner,
    but its presence is necessary. */
 struct yy_trans_info
@@ -357,294 +357,314 @@ struct yy_trans_info
 	flex_int32_t yy_verify;
 	flex_int32_t yy_nxt;
 	};
-static yyconst flex_int16_t yy_accept[2597] =
+static yyconst flex_int16_t yy_accept[2787] =
     {   0,
-      146,  146,  189,  189,    0,    0,    0,    0,  202,  202,
-      230,  230,    0,    0,    0,    0,    0,    0,  258,  258,
+      147,  147,  195,  195,    0,    0,    0,    0,  208,  208,
+      238,  238,    0,    0,    0,    0,    0,    0,  267,  267,
         0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-        0,    0,    0,    0,    0,    0,  307,  307,    0,    0,
-        0,    0,  325,  325,  330,  330,    0,    0,  168,  168,
-        0,    0,    0,    0,    0,    0,  337,  335,  156,  156,
-      152,  282,  146,  146,  271,  153,  152,  144,  335,  152,
-      152,  145,  151,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  288,  335,  335,  335,
-
-      335,  335,  335,  191,  336,  189,  188,  191,  191,  182,
-      189,  189,  189,  189,  189,  189,  191,  191,  191,  191,
-      191,  191,  195,  194,  195,  197,  197,  336,  197,  197,
-      197,  197,  197,  197,  197,  197,  197,  197,  197,  197,
-      197,  197,  197,  197,  197,  197,  207,  207,  202,  207,
-      207,  202,  202,  207,  207,  207,  207,  207,  207,  207,
-      234,  233,  233,  230,  228,  234,  230,  229,  230,  232,
-      231,  230,  230,  230,  230,  230,  234,  234,  240,  239,
-      239,  236,  240,  237,  240,  240,  242,  241,  241,  241,
-      242,  242,  242,  260,  257,  257,  258,  252,  253,  260,
-
-      258,  256,  258,  258,  258,  258,  258,  258,  260,  260,
-      262,  261,  336,  336,  268,  267,  267,  265,  263,  264,
-      268,  268,  268,  270,  269,  269,  269,  270,  270,  270,
-      277,  278,  336,  272,  273,  336,  283,  284,  336,  290,
-      291,  293,  294,  310,  308,  308,  298,  307,  307,  299,
-      297,  310,  309,  310,  307,  307,  307,  307,  307,  300,
-      310,  310,  310,  310,  310,  310,  334,  334,  317,  316,
-      316,  314,  316,  315,  312,  313,  317,  317,  317,  317,
-      327,  326,  326,  320,  325,  325,  321,  318,  319,  327,
-      325,  325,  325,  327,  327,  327,  327,  327,  327,  331,
-
-      330,  332,  329,  330,  336,  336,  336,  336,  336,  336,
-      178,  178,  176,  170,  170,  174,  168,  168,  173,  176,
-      167,  176,  176,  166,  172,  171,  171,  168,  168,  168,
-      175,  176,  176,  176,  176,  176,  176,  117,  115,  115,
-      115,  117,  116,  117,  117,  117,  126,  124,  124,  124,
-      126,  125,  126,  126,  126,  336,  336,  336,  156,    0,
-      148,    0,    0,    0,    0,    0,    0,    0,  156,  146,
-      156,  156,  156,  156,  156,  156,  146,    0,    0,    0,
-        0,    0,    0,    0,  147,    0,    0,    0,    0,    0,
-        0,  145,    0,  150,  192,  150,  145,  146,  146,  146,
-
-       44,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,    8,    0,  149,    0,    0,    0,    0,
+        0,    0,    0,    0,    0,    0,  315,  315,    0,    0,
+        0,    0,  333,  333,  338,  338,    0,    0,  174,  174,
+        0,    0,    0,    0,    0,    0,    0,    0,  345,  343,
+      157,  157,  153,  291,  147,  147,  280,  154,  153,  145,
+      343,  153,  153,  146,  152,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  297,  343,
+
+      343,  343,  343,  343,  343,  197,  344,  195,  194,  197,
+      197,  188,  195,  195,  195,  195,  195,  195,  197,  197,
+      197,  197,  197,  197,  201,  200,  201,  203,  203,  344,
+      203,  203,  203,  203,  203,  203,  203,  203,  203,  203,
+      203,  203,  203,  203,  203,  203,  203,  203,  213,  213,
+      208,  213,  213,  208,  208,  213,  213,  213,  213,  213,
+      213,  213,  242,  241,  241,  238,  236,  242,  238,  237,
+      238,  240,  239,  238,  238,  238,  238,  238,  242,  242,
+      248,  247,  247,  244,  248,  245,  248,  248,  250,  249,
+      249,  249,  250,  250,  250,  269,  266,  266,  267,  261,
+
+      262,  269,  267,  265,  267,  267,  267,  267,  267,  267,
+      269,  269,  271,  270,  344,  344,  277,  276,  276,  274,
+      272,  273,  277,  277,  277,  279,  278,  278,  278,  279,
+      279,  279,  286,  287,  344,  281,  282,  344,  292,  293,
+      344,  299,  300,  302,  303,  318,  316,  316,  307,  315,
+      315,  308,  306,  318,  317,  318,  315,  315,  315,  315,
+      309,  318,  318,  318,  318,  318,  318,  342,  342,  325,
+      324,  324,  322,  324,  323,  320,  321,  325,  325,  325,
+      325,  335,  334,  334,  328,  333,  333,  329,  326,  327,
+      335,  333,  333,  333,  335,  335,  335,  335,  335,  335,
+
+      339,  338,  340,  337,  338,  344,  344,  344,  344,  344,
+      344,  184,  184,  182,  176,  176,  180,  174,  174,  179,
+      182,  173,  182,  182,  172,  178,  177,  174,  174,  181,
+      182,  182,  182,  182,  182,  182,  117,  115,  115,  115,
+      117,  116,  117,  117,  117,  127,  125,  125,  125,  127,
+      126,  127,  127,  127,  344,  344,  344,  157,    0,  149,
+        0,    0,    0,    0,    0,    0,    0,  157,  147,  157,
+      157,  157,  157,  157,  157,  147,    0,    0,    0,    0,
+        0,    0,    0,  148,    0,    0,    0,    0,    0,    0,
+      146,    0,    0,  146,  151,  198,  151,  146,  147,  147,
+
+      147,   44,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,    8,    0,  150,    0,    0,    0,
         0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-      189,    0,    0,    0,    0,    0,    0,    0,  190,  182,
-      182,  189,  189,  189,  189,  189,  189,    0,    0,    0,
-        0,    0,    0,    0,    0,    0,  193,    0,    0,    0,
+        0,  195,    0,    0,    0,    0,    0,    0,    0,  196,
+      188,  188,  195,  195,  195,  195,  195,  195,    0,    0,
+        0,    0,    0,    0,    0,    0,    0,  199,    0,    0,
 
-      217,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-        0,    0,    0,    0,    0,  196,    0,    0,    0,    0,
+        0,  223,    0,    0,    0,    0,    0,    0,    0,    0,
+        0,    0,    0,    0,    0,    0,  202,    0,    0,    0,
         0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-        0,    0,    0,    0,    0,  204,    0,    0,    0,    0,
-        0,    0,    0,  202,    0,    0,    0,    0,    0,    0,
-        0,  203,    0,    0,    0,    0,    0,    0,    0,  206,
-      202,  202,    0,  205,    0,    0,    0,    0,    0,    0,
-        0,    0,    0,    0,    0,    0,    0,    0,  230,    0,
-      235,  230,  230,  230,  230,  230,  230,  230,  230,    0,
-        0,    0,  238,    0,    0,    0,  241,    0,    0,  258,
-
-      258,  258,    0,  259,  258,  258,  258,  258,  258,  258,
-        0,    0,    0,    0,    0,  266,    0,    0,    0,  269,
-        0,    0,  277,    0,    0,  279,    0,    0,  280,  272,
-        0,    0,  274,    0,    0,  275,    0,  285,    0,    0,
-        0,  286,  290,  289,  293,  292,  308,    0,  308,  307,
-      308,  308,  308,  308,  308,  308,  307,    0,    0,    0,
-        0,    0,    0,    0,    0,  307,  307,  307,  307,  307,
-      307,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-      316,    0,  316,    0,    0,    0,    0,  326,    0,  326,
-      325,  326,  326,  326,  326,  326,  326,  325,    0,    0,
-
-        0,    0,    0,    0,    0,  325,  325,  325,    0,    0,
-        0,    0,    0,    0,    0,    0,  330,    0,    0,    0,
-        0,    0,    0,  330,    0,    0,    0,    0,    0,    0,
-        0,    0,    0,  170,    0,  170,  168,  170,  170,  170,
-      170,  170,  170,  168,    0,    0,    0,    0,    0,    0,
-      166,    0,  169,  169,  166,  168,    0,  168,  168,  168,
-        0,    0,    0,    0,    0,    0,    0,    0,  115,    0,
-      115,    0,    0,    0,    0,  124,    0,  124,    0,    0,
+        0,    0,    0,    0,    0,    0,  210,    0,    0,    0,
+        0,    0,    0,    0,  208,    0,    0,    0,    0,    0,
+        0,    0,  209,    0,    0,    0,    0,    0,    0,    0,
+      212,  208,  208,    0,  211,    0,    0,    0,    0,    0,
+        0,    0,    0,    0,    0,    0,    0,    0,    0,  238,
+        0,  243,  238,  238,  238,  238,  238,  238,  238,  238,
+        0,    0,    0,  246,    0,    0,    0,  249,    0,    0,
+
+      267,  267,  267,    0,  268,  267,  267,  267,  267,  267,
+      267,  267,    0,    0,    0,    0,    0,  275,    0,    0,
+        0,  278,    0,    0,  286,    0,    0,  288,    0,    0,
+      289,  281,    0,    0,  283,    0,    0,  284,    0,  294,
+        0,    0,    0,  295,  299,  298,  302,  301,  316,    0,
+      316,  315,  316,  316,  316,  316,  316,  316,  315,    0,
+        0,    0,    0,    0,    0,    0,    0,  315,  315,  315,
+      315,  315,    0,    0,    0,    0,    0,    0,    0,    0,
+        0,  324,    0,  324,    0,    0,    0,    0,  334,    0,
+      334,  333,  334,  334,  334,  334,  334,  334,  333,    0,
+
+        0,    0,    0,    0,    0,    0,  333,  333,  333,    0,
+        0,    0,    0,    0,    0,    0,    0,  338,    0,    0,
+        0,    0,    0,    0,  338,    0,    0,    0,    0,    0,
+        0,    0,    0,    0,  176,    0,  176,  174,  176,  176,
+      176,  176,  176,  176,  174,    0,    0,    0,    0,    0,
+        0,  172,    0,    0,  172,  175,  175,  172,  174,  174,
+      174,    0,    0,    0,    0,    0,    0,    0,    0,  115,
+        0,  115,    0,    0,    0,    0,  125,    0,  125,    0,
         0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-        0,    0,    0,    0,  156,  156,  156,  156,  156,  156,
-
-      156,  156,    0,    0,    0,    0,    0,    0,    0,    0,
-        0,    0,  156,    0,    0,  150,    0,    0,  146,   55,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-       42,  146,  146,  146,  146,  146,  146,  146,  111,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,   13,
-      146,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-       53,  146,  146,  146,  146,  146,  146,    0,    0,    0,
-
-        0,    0,    0,    0,    0,  146,  146,  154,  155,  144,
-        0,    0,  189,  189,  189,  189,  189,  189,  189,  189,
-      179,  180,    0,    0,    0,    0,    0,    0,    0,    0,
+        0,    0,    0,    0,    0,  157,  157,  157,  157,  157,
+
+      157,  157,  157,    0,    0,    0,    0,    0,    0,    0,
+        0,    0,    0,  146,  157,    0,  146,    0,    0,  151,
+        0,  146,    0,  147,   55,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,   42,  147,  147,  147,  147,
+      147,  147,  147,  111,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,   13,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  147,   53,  147,  147,  147,
+
+      147,  147,  147,    0,    0,    0,    0,    0,    0,    0,
+        0,  147,  147,  155,  156,  145,    0,    0,  188,  188,
+      195,  195,  195,  195,  195,  195,  195,  195,  185,  186,
         0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
         0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-        0,    0,    0,    0,  202,  202,    0,    0,    0,    0,
-        0,    0,    0,    0,  202,  202,    0,  230,  230,  230,
-      230,  230,  230,  230,  230,  233,  229,  239,  237,  241,
-      258,  258,  258,  258,  258,  258,  258,  258,  257,  254,
-      255,  256,  262,  261,  267,  264,  269,  281,    0,  281,
-
-        0,    0,  276,    0,  276,    0,    0,  287,    0,  287,
-        0,    0,    0,  308,  308,  308,  308,  308,  308,  308,
-      308,    0,    0,  308,    0,    0,    0,    0,  307,  307,
-      307,  307,  307,  307,  307,  307,  297,    0,    0,  316,
-        0,    0,  312,  313,    0,  326,  326,  326,  326,  326,
-      326,  326,  326,    0,    0,  326,    0,  325,  325,  325,
-      325,  325,  318,  319,    0,  330,  330,  330,    0,    0,
-        0,  170,  170,  170,  170,  170,  170,  170,  170,    0,
-        0,  170,    0,    0,  169,    0,    0,  168,    0,    0,
-      168,  168,  168,  168,  168,  167,    0,  115,    0,    0,
-
-        0,  124,    0,    0,    0,    0,    0,    0,    0,    0,
-        0,  146,  146,  156,    0,    0,    0,  156,  156,  156,
-        0,    0,  150,    0,  150,  150,  146,  146,  146,  146,
-      146,  146,   14,  146,  146,  146,  146,  146,  146,  146,
-      146,  146,   49,   18,  146,  146,  146,  146,  146,   25,
-      146,  146,  146,   74,  146,  146,  146,  146,   61,  137,
-      146,   56,  146,  146,  146,  146,  146,  146,   71,  146,
-      146,  146,  146,  146,  146,  146,   51,  146,  146,  146,
-      146,  146,  146,  146,  146,    0,    0,    7,  146,  146,
-       90,  146,  146,  146,  146,  146,  146,  146,  146,  146,
-
-      146,  146,  146,  146,   16,  146,   52,    0,    0,    0,
-      189,  189,  189,  189,  189,  184,    0,    0,    0,    0,
-      208,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-        0,    0,    0,  202,  202,    0,    0,    0,  230,  230,
-      230,  230,  230,  230,  230,  230,  258,  245,  258,  258,
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+        0,  188,  188,  195,  195,    0,    0,  238,  238,  256,
+      267,    0,    0,    0,  304,  315,  333,  172,  172,  172,
+      146,  146,  146,    0,    0,    0,   64,    0,    0,    0,
+      147,  163,    0,    0,    0,    0,    0,    0,    0,    0,
+        0,    0,    0,    0,    0,    0,    0,    0,    0,   77,
 
         0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-        0,    0,    0,    0,    0,    0,    0,  112,    0,    0,
-        0,    0,    0,    0,    0,    0,   99,    0,  108,    0,
-      189,  214,  224,    0,    0,    0,    0,    0,    0,    0,
         0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-        0,    0,    0,   80,    0,    0,  121,    0,   87,    0,
-       91,    0,  102,    0,    0,  183,    0,    0,    0,  132,
-        0,    0,  135,    0,  130,    0,    0,    0,    0,    0,
-        0,    0,    0,    0,    0,   80,    0,  129,    0,    0,
-       96,    0,    0,   86,    0,    0,    0,    0,  136,    0,
-
-        0,    0,    0,    0,    0,   80,    0,   76,    0,    0,
-        0,    0,   85,    0,   97,    0,    0,    0,  133,    0,
+       81,    0,    0,    0,    0,    0,  101,  104,  118,    0,
+      188,  188,  187,  195,    0,    0,  238,  238,  267,    0,
+        0,  315,  333,  172,  172,  172,  146,  146,  146,    0,
+        0,  160,    0,  161,    0,    0,    0,  144,    0,    0,
+        0,    0,    0,    0,    0,  158,    0,    0,    0,    0,
         0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+        0,    0,  120,    0,    0,    0,    0,    0,    0,    0,
+        0,    0,  109,    0,    0,    0,    0,  106,    0,  159,
+
+        0,  188,  188,  195,    0,    0,  238,  238,  255,    0,
+      314,  312,  332,  172,  172,  172,  146,  146,  146,    0,
+        0,    0,    0,    0,    0,    0,  162,    0,    0,    0,
+        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+        0,    0,    0,    0,    0,    0,    0,    0,    0,  112,
+        0,    0,    0,    0,    0,    0,    0,    0,    0,   99,
+        0,  108,    0,  188,  188,  195,  220,    0,  231,  238,
+        0,  172,  172,  172,  146,  146,  146,    0,    0,    0,
         0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-       98,    0,    0,    0,    0,    0,    0,    0,    0,    0,
-        0,    0,    0,    0,  118,    0,    0,  131,    0,    0,
-        0,    0,    0,    0,    0,    0,  305,    0,    0,    0,
-        0,    0,  140,   79,    0,    0,    0,    0,   79,    0,
-        0,   79,    0,    0,    0,  139,    0,   80,    0,    0,
-        0,    0,    0,    0,   79,    0
+        0,    0,    0,    0,    0,   80,  165,    0,    0,    0,
 
+        0,  122,    0,    0,   87,    0,   91,    0,  102,    0,
+        0,  188,  188,  189,  225,  235,    0,  172,  172,  172,
+      146,  146,  146,  133,    0,    0,  136,  167,    0,  131,
+        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+       80,    0,    0,    0,  130,    0,    0,    0,   96,    0,
+        0,   86,  188,  188,    0,  172,  172,  172,  146,  146,
+      147,    0,  137,    0,    0,    0,    0,    0,    0,   80,
+        0,   76,    0,    0,    0,  166,    0,    0,   85,  164,
+        0,   97,  188,    0,  172,  172,  174,  151,  151,  147,
+      134,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+
+        0,    0,    0,    0,  175,  175,  174,  151,  151,    0,
+        0,    0,    0,    0,    0,    0,    0,    0,    0,   98,
+        0,  175,  175,    0,    0,    0,    0,    0,    0,    0,
+        0,    0,    0,    0,  119,    0,    0,  132,    0,    0,
+        0,    0,    0,    0,    0,    0,    0,  314,    0,    0,
+        0,    0,    0,  141,   79,    0,    0,    0,    0,    0,
+        0,   79,    0,    0,    0,    0,   79,    0,    0,    0,
+        0,  140,    0,   80,    0,    0,    0,    0,    0,    0,
+      169,    0,    0,    0,   79,    0
     } ;
 
 static yyconst flex_int32_t yy_ec[256] =
@@ -653,2595 +673,2684 @@ static yyconst flex_int32_t yy_ec[256] =
         1,    2,    4,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    2,    5,    6,    7,    8,    5,    5,    9,   10,
-       11,   12,   13,   14,   15,   16,   17,   18,   19,   19,
-       19,   19,   19,   19,   19,   19,   19,   20,   21,    1,
-       22,    1,   23,   24,   25,   26,   27,   28,   29,   30,
-       31,   32,   33,   34,   35,   36,   37,   38,   39,   40,
-       41,   42,   43,   44,   45,   46,   47,   48,   49,   50,
-        1,   51,    1,    5,   52,   53,   54,   55,   56,   57,
-
-       58,   59,   60,   61,   62,   63,   64,   65,   66,   67,
-       68,   69,   70,   71,   72,   73,   74,   75,   76,   77,
-       78,   79,   80,    5,   80,    5,    1,   81,   82,   82,
-       82,   82,   82,   82,   82,   83,   84,   85,   85,   86,
-       87,   87,   87,   87,   87,   87,   87,   87,   87,   87,
-       87,   87,   87,   87,   87,   87,   87,   87,   87,   87,
-       87,   87,   87,   87,   87,   87,   87,   87,   87,   87,
-       87,   87,   87,   87,   87,   87,   87,   87,   87,   87,
-       87,   87,   87,   87,   87,   87,   87,   88,   89,   89,
-       89,    1,    1,   90,   90,   90,   90,   90,   90,   90,
-
-       90,   90,   90,   90,   90,   90,   90,   90,   90,   90,
-       90,   90,   90,   90,   90,   90,   90,   90,   90,   90,
-       90,   90,   90,   91,   91,   91,   92,   93,   93,   93,
-       93,   93,   93,   93,   93,   93,   93,   93,   94,   95,
-       95,   95,   95,   95,    1,    1,    1,    1,    1,    1,
+       11,   12,   13,   14,   15,   16,   17,   18,   18,   18,
+       18,   18,   18,   18,   18,   18,   18,   19,   20,    1,
+       21,    1,   22,   23,   24,   25,   26,   27,   28,   29,
+       30,   31,   32,   33,   34,   35,   36,   37,   38,   39,
+       40,   41,   42,   43,   44,   45,   46,   47,   48,   49,
+        1,   50,    1,    5,   51,   52,   53,   54,   55,   56,
+
+       57,   58,   59,   60,   61,   62,   63,   64,   65,   66,
+       67,   68,   69,   70,   71,   72,   73,   74,   75,   76,
+       77,   78,   79,    5,   79,    5,    1,   80,   81,   81,
+       81,   81,   81,   81,   81,   82,   83,   84,   84,   85,
+       86,   86,   86,   86,   86,   86,   86,   86,   86,   86,
+       86,   86,   86,   86,   86,   86,   86,   86,   86,   86,
+       86,   86,   86,   86,   86,   86,   86,   86,   86,   86,
+       86,   86,   86,   86,   86,   86,   86,   86,   86,   86,
+       86,   86,   86,   86,   86,   86,   86,   87,   88,   88,
+       88,    1,    1,   89,   89,   89,   89,   89,   89,   89,
+
+       89,   89,   89,   89,   89,   89,   89,   89,   89,   89,
+       89,   89,   89,   89,   89,   89,   89,   89,   89,   89,
+       89,   89,   89,   90,   90,   90,   91,   92,   92,   92,
+       92,   92,   92,   92,   92,   92,   92,   92,   93,   94,
+       94,   94,   94,   94,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1
     } ;
 
-static yyconst flex_int32_t yy_meta[96] =
+static yyconst flex_int32_t yy_meta[95] =
     {   0,
         1,    2,    3,    3,    1,    4,    5,    6,    7,    1,
-        1,    1,    8,    1,    9,   10,    1,    6,    6,   11,
-        1,    1,    1,    1,    6,    6,    6,    6,    6,    6,
-        6,    6,    6,    6,    6,    6,    6,    6,    6,    6,
+        1,    1,    2,    1,    8,    9,    1,    6,   10,    1,
+        1,    1,    1,    6,    6,    6,    6,    6,    6,    6,
         6,    6,    6,    6,    6,    6,    6,    6,    6,    6,
-       12,    6,   13,    6,    6,    6,    6,    6,    6,    6,
+        6,    6,    6,    6,    6,    6,    6,    6,    6,   11,
+        6,   12,    6,    6,    6,    6,    6,    6,    6,    6,
         6,    6,    6,    6,    6,    6,    6,    6,    6,    6,
-        6,    6,    6,    6,    6,    6,    6,    6,    6,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    5,
-        5,    5,    5,    5,    5
+        6,    6,    6,    6,    6,    6,    6,    6,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    5,    5,
+        5,    5,    5,    5
 
     } ;
 
-static yyconst flex_int16_t yy_base[2759] =
+static yyconst flex_int16_t yy_base[2949] =
     {   0,
-        0,    0,   95,    0,  188,  189,  201,    0,  296,    0,
-      391,    0,  485,  489,  502,  506,    0,    0,  600,    0,
-      694,  697,  706,  717,  728,  739,  481,  486,  487,  491,
-      496,  501, 5821, 5819, 5818, 5787,  833,    0,  509,  510,
-      927,  937, 1031,    0, 1126,    0,  516,  518, 1221,    0,
-     1315, 1322, 1346, 1356,  489,  517, 5839,17443, 1330, 1336,
-    17443, 1340, 1448,  103,  702,17443,  504,17443,  509,  511,
-     5795,  687,17443, 1508,  920,  733,  903,  912, 1518, 1309,
-     1383, 1527,  722, 1590,  933, 1412, 1598, 1605,  494, 1427,
-     1672, 1600, 1665, 1398, 1736, 1601,  669, 1427, 1636, 1665,
-
-     1730, 1739, 1748,17443,17443,  465,17443,  514,  522, 1693,
-     1701, 1771, 1794, 1750, 1802, 1818, 1767, 1817, 1833, 1842,
-     1851, 1860,17443,17443,  531,17443, 1948, 2042, 1969,  549,
-     1997,  516,17443,  922,  708,  728,  542,  931, 1316, 2089,
-     1945, 2080, 2089, 2098, 2107, 2116,17443, 1476,  873, 1863,
-      555, 2031, 2058, 1958, 2125, 2134, 2143, 2152, 2161, 2170,
-    17443,17443,17443,    0,17443,  559,    0,17443,    0,17443,
-    17443,  690,  689,  705,  734, 1949, 5724, 5716,17443,17443,
-    17443,17443,  578,17443, 5683, 5675,17443,17443,17443,17443,
-      580, 5643, 5635,17443,17443,17443,  915,17443,17443,  754,
-
-        0,17443,    0,    0,  748,  946, 1357, 1520, 5597, 5571,
-    17443,17443, 5577, 5558,17443,17443,17443,17443,17443,17443,
-      790, 5558, 5549,17443,17443,17443,17443,  793, 5555, 5546,
-        0, 2065,    0,    0, 2258,    0,17443, 1867,    0,    0,
-     5570,    0, 5514,17443, 1391, 1522,17443, 2350, 1709,17443,
-    17443, 5549,17443, 5519, 2218, 2227, 2234, 2243, 2300,17443,
-     2193, 2202, 2259, 2294, 2323, 2332,17443,  943,17443, 1545,
-     1574,17443,    0,17443,17443,17443, 5525, 1299, 5414, 5406,
-    17443, 1602, 1875,17443, 2445, 1903,17443,17443,17443, 5400,
-     2384, 2399, 2456, 2399, 2418, 2427, 2471, 2480, 2489,17443,
-
-     2003,17443,17443, 2537, 2499, 2508, 2517, 2528, 2537, 2552,
-    17443, 1297,17443, 2425, 2640,17443, 2732, 2013,17443,  715,
-    17443,  958,  749, 2629,17443,17443, 5389, 2601, 2613, 2621,
-    17443, 2578, 2676, 2685, 2705, 2714, 2747,17443, 2686, 2773,
-        0, 5397,17443, 1299, 1322, 5300,17443, 2777, 2802,    0,
-     5365,17443, 1326, 1355, 5196, 1357, 1363, 1367, 2805, 5162,
-    17443, 2294, 2756, 2765, 2774, 2789, 2798, 2817,    0, 2906,
-     2850, 2859, 2879, 2888, 2921, 2930, 2211, 2939, 2948, 2957,
-     2966, 2975, 2984, 2859,17443, 2993, 3002, 3011, 3020, 3029,
-     3038,  811, 2886, 1951,17443, 2018, 3112, 3119, 2636, 3104,
-
-     2428, 3089, 3128, 3140, 3097, 3150, 3191, 3179, 3223, 3199,
-     3207, 3267, 3250, 3261, 3280, 3295, 3301, 3274, 3319, 3350,
-     3340, 3380, 3364, 3356, 3401, 3392, 3418, 3436, 3442, 3448,
-     3479, 3460, 3504, 3510, 3489, 3516, 3527, 3598, 3588, 3604,
-     3430, 3612, 3618, 3629, 3643, 3700, 3667, 3687, 3710, 3747,
-     3754, 3658, 3236, 2561, 3083,17443, 3061, 3745, 3769, 3778,
-     3787, 3796, 3805, 3814, 3823, 3832, 3841, 3850, 3859, 3868,
-     2591, 3877, 3886, 3895, 3904, 3913, 3922, 1005,17443, 1302,
-     3994, 3716, 3986, 4000, 4006, 3973, 4015, 3935, 3333, 3964,
-     4030, 4039, 3682, 4048, 4057, 1330,17443, 4145, 4151, 4166,
-
-    17443, 4191, 1523, 1606, 1602, 1669, 4159, 4181, 4190, 4206,
-     4215, 4224, 4233, 4242, 1412,17443, 1680, 1598, 1653, 2077,
-     3184, 3583, 3530, 3601, 3516, 1517, 2076, 4251, 4260, 4269,
-     4278, 4287, 3072, 4296, 4305,17443, 2889, 4314, 4323, 4332,
-     4341, 4350, 4359, 3409, 4368, 4377, 4386, 4395, 4404, 4413,
-     4494,17443, 4423, 4432, 4441, 4450, 4459, 4468, 1430,17443,
-     4157, 4535, 3980,17443, 4481, 4490, 4510, 4519, 4528, 4550,
-     4559, 4567, 4576, 4585, 4594, 3316, 4603, 4612,    0, 1467,
-    17443, 1383, 1442, 1455, 1471, 1537, 1521, 1697, 1719, 5161,
-     5140, 1469,17443, 5144, 5138, 1759,17443, 5142, 5102,    0,
-
-     1738, 1911, 1763,17443, 1936, 1944, 2104, 2239, 2268, 2344,
-     5106, 1360, 5102, 5098, 2006,17443, 5082, 5073, 2142,17443,
-     5038, 1282,    0, 3163, 5109,17443, 5100, 5033,17443,    0,
-     4700, 4989,17443, 4981, 4860,17443, 3724,17443, 4928, 4918,
-     4848,17443,    0,17443,    0,17443, 4616, 4846,    0, 4792,
-     4629, 4638, 4647, 4656, 4665, 4674, 3729, 4683, 4692, 4701,
-     4736, 4745, 4765, 4703, 3587, 4766, 4817, 4802, 4830, 4845,
-     4852, 4867, 4876, 4885, 4894, 4903, 4912, 4921, 4930, 2365,
-     4834, 4835,    0, 4928, 2361, 4833, 1295, 5019, 4825,    0,
-     5111, 4943, 4952, 4961, 4970, 4979, 4988, 3944, 4997, 5006,
-
-     5015, 5055, 5064, 5084, 5152, 5084, 5117, 5137, 5133, 5152,
-     5164, 5173, 5182, 5191, 5200, 5209, 4773, 5218, 5227, 5236,
-     5245, 5254, 5263, 5314, 5273, 5281, 5290, 5302, 5311, 5329,
-     5338, 5347, 2624, 5399, 4809,    0, 5491, 5356, 5365, 5374,
-     5383, 5392, 5401, 4810, 5435, 5444, 5464, 5473, 5506, 5515,
-     1577, 5532, 2681, 3757, 5589, 5550, 3604, 5562, 5570, 5576,
-     5544, 5604, 5613, 5622, 5631, 5640, 5649, 5658, 5670, 4808,
-        0, 5673, 2630, 2644, 4774, 5746, 4763,    0, 5749, 2743,
-     2829, 4754, 2837, 2921, 3110, 4719, 5685, 5528, 5694, 5703,
-     5712, 5721, 5730, 5739, 5748, 5672, 5761, 5770, 5779, 5788,
-
-     5797, 5806, 5814, 5823, 5832, 5840, 5849, 5858, 5867, 5876,
-     5885, 5894, 5982, 4718, 3549, 4133, 4214, 1708, 5941, 5015,
-     5933, 5951, 5958, 5968, 5975, 5985, 6018, 6027, 6056, 6047,
-     6062, 6068, 6079, 6139, 6109, 6126, 6145, 6151, 6158, 6182,
-     5902, 6188, 6219, 6225, 6212, 6231, 6258, 6238, 5912, 6269,
-     6307, 6313, 6299, 6319, 6342, 6327, 6333, 6282, 6356, 6384,
-     6390, 6396, 6414, 6435, 6421, 6407, 6455, 6472, 6480, 6496,
-     6503, 6511, 6529, 6519, 6539, 6563, 6571, 6288, 6579, 6555,
-     6591, 6599, 6633, 6623, 6647, 6692, 6641, 6681, 6675, 6708,
-     5927, 6714, 6743, 6728, 6757, 6772, 6764, 6452, 6103, 6787,
-
-     6796, 6805, 6094, 6814, 6823, 6350, 6362,17443,17443,17443,
-     6832, 6180, 6872, 6894, 6882, 6736, 6888, 6904, 6663, 6838,
-    17443,17443, 6859, 6918, 6921, 6992, 6975, 7003, 6934, 7015,
-     7021, 7027, 7055, 7039, 7045, 7062, 7073, 7088, 7097, 7105,
-     7114, 7123, 7132, 6614, 7141, 7150, 7159, 7167, 7176, 7185,
-     7194, 6951, 7203, 7212, 7258, 7267, 7223, 7231, 7240, 7252,
-     7282, 6969, 7291, 7300, 7252, 7300, 7315, 3115, 3182, 3182,
-     4744, 3203, 3203, 4739, 3281,17443,17443,17443,17443,17443,
-     3432, 3473, 3516, 3588, 3594, 3597, 3610, 3690,17443,17443,
-    17443,17443,17443,17443,17443,17443,17443,17443, 4615, 4614,
-
-     6009, 4541,17443, 4612, 4574, 6053, 4501,17443, 4575, 4574,
-     6088, 4479, 4478, 7324, 7332, 7341, 7350, 7359, 7368, 7377,
-     7386, 7394, 7403, 6122, 4477, 3711, 3759, 3766, 7447, 7455,
-     7461, 7468, 7484, 7474, 7409, 7415,17443, 7499, 3992, 6208,
-     4199, 3997,17443,17443, 4174, 7508, 7447, 7517, 7526, 7535,
-     7431, 7544, 7553, 7561, 7570, 6469, 4173, 7615, 7621, 7608,
-     7576, 7582,17443,17443, 7602, 7627, 7633, 7639, 7654, 3988,
-     4153, 7663, 7671, 7680, 7689, 7698, 7707, 7716, 7725, 7733,
-     7742, 6842, 4150, 4900, 5480, 5167, 1710, 7772, 3983, 4001,
-     7786, 7800, 7810, 7742, 7748,17443, 7763, 7569, 4142, 3995,
-
-     4115, 7854, 4141, 4134, 4151, 4153, 4161, 4154, 7822, 7862,
-     7837, 7957, 8052, 7846, 7850, 7897, 7912,    0, 7868, 4139,
-     4134, 1839, 1841, 1862, 1872, 1947, 7933, 7927, 7997, 7941,
-     8017, 8028, 7793, 8067, 8073, 8091, 8082, 8105, 8114, 8126,
-     8144, 8150, 8159, 7987, 8184, 8211, 8177, 8171, 8200, 8097,
-     8236, 8220, 8249, 8120, 8229, 8265, 8277, 8290, 8255, 8296,
-     8283, 8302, 8335, 8362, 8374, 8381, 8368, 8387, 8320, 8399,
-     8450, 8415, 8459, 8466, 8356, 8482, 8406, 8473, 8489, 8508,
-     8543, 8559, 8553, 8565, 8583, 8677, 8541, 8592, 8444, 8598,
-     8661, 8636, 8670, 8680, 8694, 8686, 8701, 8737, 8746, 8758,
-
-     8766, 8775, 8781, 8792, 8428, 8805, 8708, 8752, 8811, 8826,
-     8833, 8840, 8867, 8877, 8883, 8723, 8861, 8920, 8963, 8926,
-    17443, 8970, 9007, 8980, 9013, 9019, 9030, 8992, 8999, 9045,
-     9057, 9067, 9054, 9092, 9116, 9100, 9110, 9083, 4768, 4798,
-     5090, 5128, 5481, 5501, 5508, 5591, 5577,    0, 5582, 5973,
-     4159, 6043, 6044, 6069, 8716, 4129, 8985, 4127, 8009, 4117,
-     9211, 9306, 9155,    0, 7894, 4097, 4094, 6059, 6062, 4113,
-     9162, 9191, 9243, 9255, 9177, 9283, 6068,    0, 8167, 4082,
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-
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-     9467,    0, 8440, 4021, 4002,17443, 6229,    0, 8525, 4001,
-     3981,17443,17443,17443,17443,17443, 3961, 9432, 9568, 9663,
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-     9790, 9831, 9840, 9825, 9864, 9893, 9906, 9925, 9900, 9938,
-     9958, 9944, 9974,10042, 9967,10003,10023,10020,10077,10070,
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-    10212,10225,10234,10251,10263,10257,10279,10285,10273,10293,
-    10387, 6612, 6227, 6231, 6241, 6313, 6316, 6383, 3960,10311,
-    10481,10320,10408,10331,10470,10439,10487,10493,10502,10544,
-
-    10515,10572,10587,10600,10609,10615,10621,10650,10629,10658,
-     9183, 9385,10641,10667,17443,10702,10714, 9558,10721,10753,
-    10738,10782,10761,10747,10579, 9336, 6512, 6645, 3784, 6732,
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-
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-    11428,11438,11463, 7453, 3533,11428,11532,11545,11474,11570,
-    11488,11585,11591,11598,11612, 8668, 7470, 7489, 7633, 7823,
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-
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-    13116,13123, 3302, 2319,13075,12988,13177,13189,13240,13253,
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-    13819,12912,13879,13844,13912,11080,11090,13896,11081,13957,
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-
-    14073, 3183, 2529, 2897,12767,11109,11086,14088,14094,12687,
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-    11168,11196, 3179, 2705, 3321,13722,11200,11200,11207,11218,
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-    11519,11547, 9381,11551,11536,17443,11590,11706,11711,11764,
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-    14141,14184,11850,11867,11868,11855,11871,11892,11899, 9722,
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-
-    14498,14512,13148,14212,11954, 3145,14519,14544,14561,13272,
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-    14552,14553,15306,15292, 1802, 1786,14605,14626,14632,14630,
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-
-     1659,14647,14662, 1655,14675,14713,14715,14709,14720,14724,
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+     5678, 5687, 5696, 5705, 5714, 5723, 5420, 5747, 5756, 5765,
+
+     5774, 5783, 5792, 5499, 5801, 5810, 5818, 5827, 5836, 5845,
+     5854, 5863, 5872, 5620, 5959, 5557, 3289, 1918, 2095, 3293,
+     2238, 5948, 5540, 5921, 5954, 5962, 5968, 5979, 6002, 6048,
+     6012, 6062, 6071, 6106, 6092, 6150, 6115, 6157, 6199, 6175,
+     6186, 6215, 6206, 6222, 6239, 5992, 6257, 6301, 6287, 6310,
+     6323, 6329, 6336, 6267, 6369, 6354, 6382, 6415, 6421, 6408,
+     6436, 6462, 6452, 6501, 6474, 6480, 6508, 6533, 6559, 6541,
+     6587, 6569, 6598, 6604, 6613, 6627, 6659, 6620, 6651, 6706,
+     6692, 6712, 6719, 6738, 6730, 6753, 6761, 6798, 6824, 6833,
+     6841, 6883, 6863, 6870, 6854, 6895, 6877, 6942, 6934, 6977,
+
+     6964, 7006, 6988, 6030, 6451, 6930, 7003, 7021, 5887, 7030,
+     7039, 6905, 7043,17872,17872,17872, 7058, 5899, 5536, 6681,
+     6971, 5908, 7087, 7102, 7093, 7125, 5527, 5932,17872,17872,
+     7067, 7080, 7158, 7174, 7183, 7189, 7204, 7197, 7219, 7268,
+     7226, 7283, 7255, 7276, 7244, 7289, 7304, 7313, 7321, 7330,
+     7339, 7348, 6130, 7357, 7366, 7375, 7383, 7392, 7401, 7410,
+     6254, 7419, 7428, 6791, 7482, 7438, 7446, 7455, 7467, 7476,
+     6354, 7497, 7506, 6782, 6812, 7515, 2429, 2652, 2725, 5466,
+     2903, 3094, 3085, 5465, 3103,17872,17872,17872,17872,17872,
+     3158, 3161, 3208, 3256, 3279, 3281, 3297, 3321, 3335,17872,
+
+    17872,17872,17872,17872,17872,17872,17872,17872,17872, 5504,
+     5391, 6096, 5186,17872, 5246, 5245, 6121, 5160,17872, 5233,
+     5222, 6142, 5143, 5142, 7524, 7532, 7541, 7550, 7559, 6680,
+     7568, 7577, 7585, 7120, 6167, 5141, 3375, 3357, 7637, 7643,
+     7650, 7666, 7625, 7476, 7591,17872, 7606, 3373, 6317, 5140,
+     3379,17872,17872, 5121, 7665, 7614, 7681, 7690, 7699, 7150,
+     7708, 7717, 7725, 7241, 6485, 5096, 7777, 7783, 7767, 7631,
+     7730,17872,17872, 7747, 7789, 7747, 7755, 7804, 3370, 5091,
+     7813, 7821, 7830, 7839, 7848, 7857, 7866, 7875, 7883, 7892,
+     5115, 6518, 5052, 3734, 2401, 2479, 3581, 3720, 7959, 5111,
+
+     7965, 7972, 7989, 7978, 7995,17872, 7937, 6734, 5048, 3404,
+     3496, 6938, 4971, 3577, 3586, 3696, 3706, 3731, 8001, 8007,
+     7952, 8101, 8195, 8045, 8065, 8130, 8060, 5032,    0, 7167,
+     4969, 4968, 4156, 4948, 4924, 4923, 4922, 4918, 8145, 8162,
+     8213, 8230, 8224, 8292, 8256, 8241, 8309, 8282, 8327, 8320,
+     8335, 8344, 8353, 8374, 8380, 8389, 8364, 8434, 8416, 8424,
+     8460, 8474, 8445, 8468, 8480, 8539, 8496, 8505, 8565, 8528,
+     8575, 8584, 8599, 8591, 8607, 8636, 8647, 8678, 8686, 8693,
+     8704, 8654, 8718, 8741, 8747, 8765, 8785, 8774, 8809, 8798,
+     8853, 8844, 8829, 8868, 8878, 8899, 8916, 8923, 8939, 9032,
+
+     8084, 8948, 9002, 9035, 8910, 9044, 9050, 9061, 9074, 9093,
+     9133, 9086, 9145, 9157, 9101, 9173, 9180, 9196, 9186, 9203,
+     9213, 7952, 8557, 8939, 4908, 8956, 9224, 9021, 8263, 8992,
+     8547, 7909, 9237, 9282, 9292, 9320,17872, 9303, 9326, 9332,
+     9349, 9411, 9417, 9428, 9151, 9361, 9377, 9311, 9390, 9386,
+     9397, 9466, 9440, 9446, 9461, 3731, 3731, 3736, 3746, 3987,
+     4122, 4148, 4157, 4163, 4149,    0, 4154, 4180, 4874, 4190,
+     4866, 4873, 5115, 7982, 4844, 8491, 4824, 8173, 4823, 9560,
+     9654, 9504,    0, 7848, 4822, 4729, 5128, 4757, 9537, 9592,
+     9544, 9512, 9606, 5136,    0, 8134, 4702, 4669, 5148, 9748,
+
+     9842, 9533,    0, 8543, 4659, 4658, 9631, 9621, 9700, 9599,
+    17872, 9936,10030, 9692, 4717,    0, 8623, 4654, 4573, 5976,
+     4634, 4618, 4617, 4593, 4592, 9788, 9796, 9879,    0, 8701,
+     4529, 4508,17872, 5169,    0, 8708, 4507, 4288,17872,17872,
+    17872,17872,17872, 4343, 4272, 6131, 9886, 9779, 9984,10038,
+     9807, 9900,10048,10067, 9966,10079, 9995,10054,10134,10147,
+    10085,10164,10172,10181,10188,10204,10228,10194,10216,10234,
+    10252,10274,10313,10283,10296,10319,10390,10273,10363,10353,
+    10380,10414,10403,10421,10444,10432,10459, 9915,10459,10513,
+    10474,10466,10482,10545,10553,10562,10582,10573,10595,10604,
+
+    10611,10634, 5489, 5167, 5829, 5953, 5963, 6066, 6081, 4271,
+    10627,10727,10652,10731,10501,10755,10652,10748,10742,10763,
+    10777,10784,10801,10844,10869,10790,10881,10887,10902,10893,
+     4332, 9873,10932, 9638, 9816,10962,10718,17872,10973,10981,
+    10913,10994,11002,11017,11033,11023,11062,11053,10627,10532,
+     6147, 6202, 4279, 6218, 4277, 6229, 6298, 6316, 4276, 6316,
+     4275, 6415, 6430, 6423, 6409, 4197,    0, 4234, 8714, 4218,
+     1422, 4146, 4216, 8817, 4215, 1517, 4128, 4199, 9999, 4198,
+     1480, 4123, 4122, 6424, 6518,10853,11133,11224, 4186,11081,
+    11085,11109,11091,17872, 4091, 6534, 4090,11008,11125,11281,
+
+     4150, 4085, 8242,11304,11312,11318, 4079,17872, 4077, 4138,
+     8596,11324,10096,11124,11330,11383,11103,11409,11339,11418,
+    11424,11352,11431,11437,11477,11446,11518,11455,11525,11536,
+    11560,11590,11604,11466,11616,11503,11583, 6543, 6541, 4073,
+    11581,11622,11639, 9784, 4139,11637,11683,11718,11669,11724,
+     6542, 4066,11661,11711,10345,11706,11735,11741,11820,10335,
+    11757,11762,11831,11842,11853,11859,10396, 6561, 6565, 6611,
+     6605, 4094, 6600, 4093, 3971, 6623, 8225, 6632, 6637, 7180,
+     6730, 6751, 6805, 6811, 6807, 6952, 8175, 7020, 3970,11807,
+    11889,11790,11869,11882,11912,11899,11983,11938,11922,11961,
+
+    12003, 4019,11946,11273,11954,11996,11553,12041,12052,12067,
+    12090,12033,12132,12098,12084,12113,12138,12144, 7017, 7020,
+     7141,    0, 9137, 3982, 7179,    0, 7178,    0, 7196, 7273,
+     7279, 7286, 3976, 7287, 1599, 1743, 1982, 7310, 7649,12124,
+    12193, 7634, 3936,12237,12243,    0,    0,12252, 8003,12342,
+    12432,12522,12612,12702,12792, 8813,12229,12182,12211,12246,
+    17872,12281,12287,12274, 3996, 8746,12374,12314,12325, 3995,
+     9305,12381, 8034, 3932,12368,12404,12461,12416,12467,12473,
+    12558,12453,12495,10811, 3811,12510,12584,12532,12564,12646,
+    12621,12655,12629,11375, 3804,12548, 8067, 8160, 3735,12686,
+
+    12734, 3728,  703,12679,12740,12752,12797, 8192, 3726,12765,
+     8212, 3712,12812,12776,12834, 8241, 3688,12821,12847,12823,
+    12895,12927, 3755,12887, 8246, 8281, 8315, 8325, 8324, 8344,
+     8474, 8462, 8537, 8602, 8658, 8765, 8795, 8801, 8861, 8868,
+     8892, 8928, 8955, 9028, 9037, 9133, 9197, 9229, 9216, 9268,
+     3684,12919,12933,12949,11587, 3741,12916,12866,12962,12978,
+     3733,12989,12293,12995,13005,13012,13018,13042,13097,13076,
+    13121,13127,13136,12592, 9271, 3696, 9305, 9307, 9313, 9313,
+     9322, 9323, 9381, 9460, 9461, 9467, 9457, 9654, 9641, 9656,
+    13082,13178,13229,13235, 9732, 3633,13244, 9760,13334,13424,
+
+    13514,13604,13694,13272,13784,13874,13251, 3629,13108,13204,
+    13219,13275,13240, 3684, 9789,13354,13285, 3673, 9793,13367,
+     9758, 3608,13373,13433,13453,13459, 3578, 1437,13322,13465,
+    13498,13487,13547,13555, 3555, 1807,13411, 9772, 9827,13614,
+    13587, 3554, 1809, 2238,13192,13636, 9836, 9847, 3553,12062,
+     3563,13581, 9873, 3494,13524,13667, 9943, 9960, 9944, 3485,
+     1850,13631, 3510,10023, 3507,10027,10112,10035,10110,10125,
+    10120,10139,10181,10142,10165,10169,10160,10171,10182,10276,
+    10274,10309,10355,10454,10398,10397,10395,10452,13642,13731,
+    13677, 3475, 1926,13720,13756,13724, 3534,13344,13793,13652,
+
+    13803,13819,13825,13843,13857,13887,13913,13904,13923,12351,
+     3466,10459,    0,    0,10463,10545,    0,    0,    0,10547,
+        0, 3464,10552,10564,10591,10604,13395,13984,14016,10605,
+    14023,14032,14042,10687,    0,    0,14132,14049,14059,14114,
+    14141,14151,14169, 3434,14001,13881,14100,14071,14109, 3448,
+    10870,14193, 3435,10871,14210,10702,14163,14224,14235,14248,
+     3362, 1928, 2275,13830,14242,14277,14263,14305, 3329, 1960,
+     2343,14078,10736,10717,14331,14290,12663,14232,10735, 3313,
+    14296,10726,10752, 3312, 1972,14322,10868,14342,10894,10877,
+    10883, 3308, 1980, 2483,14409,10881,10882,10885,10952,10975,
+
+    10980,10974, 9118,10987,10974,10990,10974,10993,11012,11007,
+    11078,11078,11103,10677,11167,11274,17872,11296,11297,11282,
+    11287,11323,11322,11391,14362, 3280, 1992, 2707,14412,14401,
+     3337,14270,14180,14386,14425,14432,14442,14450,11393,11412,
+    11423, 3303,11412,11424,11417,11432,11688, 3298,14415,14543,
+    17872,14549,14558,14564,14579,14585,14594,14615,    0,14621,
+    14657,14676,14690,14707,14716,14723,14663,12479,14693,14701,
+    13066, 3292,11546,14731, 3283,11850,14781,11484,14684,14742,
+    14750,13027,14758,11518, 3202,14764,14788,14829,13113,14864,
+    11519, 3198,11519,11563,14821,14844,13301, 3196,11621, 3155,
+
+    17872,11694, 3149, 2226, 2880,14894,11708,11699,11728,11707,
+    13565,14897,11737, 3130,11742,11788,11793,11820,11828,11829,
+    11830,11387, 3127,11847,11898,11913,11893,11935,12004,12014,
+    12056,12049,12040,14901, 3102,12049,12063,12080,12096,14967,
+    12112,12209,12215,12219,14924,13835,14945,12228, 3081, 3142,
+    14873,14953,14889,14959,14968,14978,14984,12219,    0,    0,
+    12221,12229,12238,12226,    0,13341,12730, 3067,12231,13445,
+    15077,15083,15092,15098,15119,15125,15134,15128,13851,15137,
+     3105,12332,15102, 3102,12464,15144,12700,13840, 3037,12241,
+     2886,15160,14481, 2860,12286, 2827,12284,12299,15151,15191,
+
+     2816,12286,12284,14650,15244,12327, 2813,12416,12417,12436,
+    12414,14798, 2774,12465, 2773,12479,12579,12636,12639,12696,
+    12409,12573, 2772, 2794,12715, 2746,12640,12944,12727,13321,
+    12732,12765,17872,12773,12786,12898, 2716,12892,12910,13474,
+    12911,12998,12927,13009,13019,13356,15229,13007,13032,13090,
+    17872,13148,13176,15169,14848, 2715,13206, 2691, 2746,15206,
+    15220,15230,15250,15260,13236,13233,    0,13215,13287,15021,
+    13274, 2648, 2647,13285,15330,15356,15236,15285, 2694,13736,
+    15352, 2693,13737,15369,13333,13422, 2630,13410,15340, 2623,
+    13411,13444,13533,15375,15382,13631,13980,15275, 2622,13584,
+
+     2621,17872,13586,13601, 2642, 2612,13583,13616,13633,13693,
+     2640,13742,14458, 2600,14525, 2599,13771,14826,13793,15416,
+     2591,15451, 2589,17872,15446, 2588,13834, 2597,13873,13871,
+    17872,15435, 2567,13928,13997,14011,14025,14019,14017,14026,
+    14029,14059,17872,14079,14084,14074,14077,14103,17872, 2566,
+    14114, 2627,15392,15312,15442,15471,15478,14134,14163,    0,
+    14172, 2593, 2516,14195,15488,15464,15484, 2481,14629,15493,
+     2473,14671,15523,14209,14206,14881,15501,14904,14223,14224,
+    15572,14939, 2404,15594, 2401, 2400,14225,14233,14239,14299,
+    14949, 2377,15411, 2366,14304,15304, 2335, 2323,14401,15344,
+
+     2317,14405,14406, 2279,14400,14453, 2276,14458, 2255,14506,
+    14498,14520,14532,14532, 2254,14570,14566,14686,14572,14577,
+    17872,14589,14590,14604,14626,14647,17872,17872,17872,15421,
+     2315,15511,15517,15552,15603,15609,14663,14694,14780,14778,
+    14799,15597,15621, 2314,15621,15651, 2275,15652,15689,14830,
+    14825,15628, 2211,15631, 2192,14887,14913,15634, 2186,14930,
+     2156,15669,14921,14949,14999,15727, 2043,15008,15731,15734,
+     2031,15016,15044,15746, 2029,15051, 2027,15071,15084,15087,
+    15083,15125,17872,15110,15130,15130,15135,15158,15247,15295,
+    15329,15336,17872,15341,15355,15470,15469,17872,15492,15749,
+
+     2008, 2047,15700,15706,15742,15757,15481,15594,    0,15595,
+    17872,15673,15718, 2045,15758,15810, 2036,15811,15825,15594,
+    15583, 1946, 1944,15643,15701,15745,15753, 1906, 1900, 1494,
+    15746, 1847,15785,15817,15805,15795, 1725, 1640,15808,15810,
+    15828, 1617,15815,15810,15819,15825,15818,15829,15837,17872,
+    15824,15837,15833,15834,15850,15850,15839,15848,15856,17872,
+    15873,17872, 1519, 1567,15852,15872,15863,15897,    0,15880,
+    15898, 1500,15911,15919, 1482,15942,15957,15900,15907,15931,
+    15934,15930, 1402,15933,  915, 1336,15936,15955, 1365, 1341,
+     1302,15958,15951,15952,15964,15929,17872,15954,15974,15976,
+
+    15964,17872,15968,15971,17872,15975,17872,15984,17872,16002,
+    15992, 1356,15999,15890,16014,    0,16005, 1354,16024,16025,
+     1337,16044,16052,17872,16010,16000,17872,17872,16000,17872,
+     1248, 1247,16022,16013,16028,16030,16025,16066,16072,16053,
+    16075, 1234,16054,16056,17872,16057,16073,16069,17872,16088,
+    16093,17872, 1002,16040,  959,  954,16119,16120,  905,16136,
+    16137,16094,17872,16083,  730,16119,16126,16131,16132,16083,
+      753,16165,  718,16118,  711,17872,16168,16130,17872,17872,
+    16135,17872,17872,16137,  747,16164,16179,  745,16180,16187,
+    17872,16163,16179,16175,16194,16195,16196,  674,16194,16236,
+
+      672,16185,16187,16188,  722,16239,16246,  711,16267,16204,
+    16287,16191,16231,16248,16255,16247,16248,  627,16251,17872,
+    16257,  687,16284,  648,16304, 1550,  513,  502,16265,  536,
+      527,16272,16275,16264,17872,16268,16294,17872,  480,  472,
+      466,16282,16294,16285,16284,16278,16329,17872,16302,  461,
+    16316,16305,16307,17872,16357,16360,  462,16319,16302,16316,
+    16321,16363,  454,16329,  447,16328,16385,16328,16328,  117,
+    16340,17872,16349,16388,16359,16342,16356,16351,16353,16372,
+    17872,16364,16376,16356,16405,17872,16496,16508,16520,16532,
+    16544,16556,16568,16580,16592,16604,16616,16628,16640,16652,
+
+    16664,16676,16685,16691,16699,16701,16704,16712,16717,16723,
+    16725,16727,16730,16737,16740,16748,16760,16772,16784,16796,
+    16808,16819,16830,16838,16844,16856,16864,16866,16872,16880,
+    16886,16898,16907,16913,16925,16933,16935,16938,16946,16951,
+    16957,16959,16961,16964,16971,16974,16982,16994,17006,17018,
+    17030,17042,17053,17064,17076,17084,17090,17102,17114,17122,
+    17124,17130,17142,17150,17156,17168,17180,17192,17200,17205,
+    17207,17212,17213,17216,17224,17236,17248,17260,17272,17280,
+    17286,17298,17310,17318,17320,17326,17338,17346,17355,17367,
+    17376,17382,17394,17402,17409,17417,17422,17430,17432,17439,
+
+    17441,17444,17446,17453,17456,17464,17476,17488,17500,17512,
+    17524,17532,17538,17550,17562,17574,17582,17584,17590,17602,
+    17614,17622,17631,17643,17655,17663,17668,17670,17675,17676,
+    17679,17687,17699,17711,17723,17731,17737,17749,17757,17763,
+    17775,17787,17799,17811,17823,17835,17847,17859
     } ;
 
-static yyconst flex_int16_t yy_def[2759] =
+static yyconst flex_int16_t yy_def[2949] =
     {   0,
-     2596,    1, 2596,    3, 2597, 2597, 2596,    7, 2596,    9,
-     2596,   11, 2598, 2598, 2599, 2599, 2600, 2600, 2596,   19,
-     2600, 2600, 2601, 2601, 2602, 2602, 2603, 2603, 2604, 2604,
-     2605, 2605, 2606, 2606, 2607, 2607, 2596,   37, 2608, 2608,
-     2609, 2609, 2596,   43, 2596,   45, 2610, 2610, 2596,   49,
-     2611, 2611, 2612, 2612, 2600, 2600, 2596, 2596, 2596, 2596,
-     2596, 2613, 2614, 2615, 2616, 2596, 2596, 2596, 2596, 2596,
-     2596, 2615, 2596, 2615, 2615, 2615, 2615, 2615, 2615, 2615,
-     2615, 2615, 2615, 2615, 2615, 2615, 2615, 2615, 2615, 2615,
-     2615,   88, 2615, 2615,   88,   88, 2617, 2596, 2596, 2596,
-
-     2596, 2596, 2596, 2596, 2596, 2618, 2596, 2596, 2596, 2618,
-     2618, 2618, 2618, 2618, 2618, 2618, 2596, 2596, 2596, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 2619, 2619, 2619, 2596,
-     2619,  131, 2596,  131,  131,  131,  131,  131,  131,  131,
-     2596, 2596, 2596, 2596, 2596, 2596, 2596, 2620, 2621, 2622,
-     2596, 2621, 2621, 2623, 2596, 2596, 2596, 2596, 2596, 2596,
-     2596, 2596, 2596, 2624, 2596, 2596, 2624, 2596, 2624, 2596,
-     2596, 2624, 2624, 2624, 2624, 2624, 2596, 2596, 2596, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 2625, 2596, 2596, 2596,
-
-     2625, 2596, 2625, 2625, 2625, 2625, 2625, 2625, 2596, 2596,
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+     2940, 2947, 2947, 2947, 2942, 2947, 2942, 2936, 2939, 2939,
+     2786, 2786, 2922, 2786, 2786, 2926, 2786, 2786, 2786, 2786,
+     2786, 2926, 2786, 2786, 2786, 2786, 2786, 2786, 2926, 2926,
+
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2926, 2786, 2786, 2786, 2786, 2786, 2927,
+     2927, 2927, 2928, 2928, 2930, 2930, 2931, 2931, 2931, 2786,
+     2786, 2786, 2786, 2786, 2947, 2942, 2936, 2939, 2786, 2786,
+     2922, 2786, 2786, 2926, 2786, 2786, 2786, 2786, 2926, 2786,
+     2786, 2786, 2786, 2926, 2926, 2786, 2786, 2786, 2786, 2786,
+
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2927, 2927, 2927, 2928, 2928, 2930, 2930, 2931,
+     2931, 2786, 2786, 2786, 2947, 2936, 2939, 2786, 2786, 2922,
+     2786, 2786, 2926, 2786, 2786, 2786, 2926, 2786, 2786, 2786,
+     2926, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2927, 2927, 2927, 2928, 2928, 2930, 2930, 2931, 2786,
+     2786, 2936, 2939, 2786, 2786, 2922, 2786, 2786, 2926, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2926, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+
+     2786, 2786, 2927, 2927, 2928, 2928, 2930, 2930, 2931, 2786,
+     2786, 2936, 2939, 2786, 2786, 2922, 2786, 2786, 2926, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2927, 2927, 2928, 2928, 2930, 2930,
+     2786, 2786, 2786, 2922, 2786, 2786, 2926, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2927, 2927, 2928, 2930, 2786, 2786, 2786, 2922,
+     2786, 2786, 2926, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2927, 2786, 2786, 2786, 2922, 2786, 2786,
+     2926, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2922, 2786, 2786, 2926,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+
+     2786, 2786, 2786, 2786, 2786, 2786, 2922, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786,    0, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786
     } ;
 
-static yyconst flex_int16_t yy_nxt[17539] =
+static yyconst flex_int16_t yy_nxt[17967] =
     {   0,
-       58,   59,   60,   59,   61,   62,   63,   64,   65,   66,
-       66,   61,   67,   68,   69,   70,   71,   72,   72,   61,
-       61,   61,   73,   61,   74,   75,   76,   77,   78,   79,
-       80,   81,   82,   64,   83,   84,   85,   86,   87,   88,
-       89,   90,   91,   92,   93,   94,   95,   96,   64,   64,
-       58,   64,   97,   74,   75,   76,   77,   78,   79,   80,
-       81,   82,   64,   83,   84,   85,   86,   87,   88,   89,
-       90,   91,   92,   93,   94,   95,   96,   64,   64,   58,
-       58,   58,   58,   58,   58,   58,   58,   58,   58,   98,
-       99,  100,  101,  102,  103,  104,  104,  105,  104,  104,
-
-      104,  106,  106,  104,  107,  107,  108,  109,  104,  109,
-      104,  104,  110,  110,  104,  104,  104,  104,  104,  106,
-      106,  106,  106,  106,  111,  106,  106,  112,  106,  106,
-      106,  106,  106,  106,  106,  113,  114,  115,  106,  106,
-      106,  116,  106,  106,  106,  104,  106,  104,  106,  106,
-      106,  106,  106,  111,  106,  106,  112,  106,  106,  106,
-      106,  106,  106,  106,  113,  114,  115,  106,  106,  106,
-      116,  106,  106,  106,  104,  104,  104,  104,  104,  104,
-      104,  104,  104,  104,  117,  118,  119,  120,  121,  122,
-      124,  124,  378,  379,  380,  381,  382,  383, 2579,  125,
-
-      125,  126,  127,  128,  127,  126,  126,  129,  129,  126,
-      126,  126,  130,  131,  126,  132,  133,  126,  129,  129,
-      126,  126,  126,  126,  126,  129,  129,  129,  134,  135,
-      129,  136,  129,  129,  129,  129,  129,  129,  129,  137,
-      138,  129,  139,  129,  140,  129,  129,  129,  129,  129,
-      129,  126,  129,  126,  129,  129,  129,  134,  135,  129,
-      136,  129,  129,  129,  129,  129,  129,  129,  137,  138,
-      129,  139,  129,  140,  129,  129,  129,  129,  129,  129,
-      126,  126,  126,  126,  126,  126,  126,  126,  126,  126,
-      141,  142,  143,  144,  145,  146,  147,  147,  105,  147,
-
-      147,  148,  149,  149,  150,  147,  147,  151,  147,  147,
-      147,  147,  147,  149,  149,  147,  147,  147,  147,  147,
-      149,  149,  149,  149,  149,  149,  149,  149,  149,  149,
-      149,  149,  149,  149,  149,  152,  149,  149,  149,  153,
-      149,  149,  149,  149,  149,  149,  147,  149,  154,  149,
-      149,  149,  149,  149,  149,  149,  149,  149,  149,  149,
-      149,  149,  149,  149,  152,  149,  149,  149,  153,  149,
-      149,  149,  149,  149,  149,  147,  147,  147,  147,  147,
-      147,  147,  147,  147,  147,  155,  156,  157,  158,  159,
-      160,  161,  162,  163,  162,  161,  161,  161,  164,  165,
-
-      161,  161,  166,  167,  168,  169,  170,  161,  164,  164,
-      161,  161,  171,  161,  161,  164,  164,  164,  172,  173,
-      164,  174,  164,  164,  164,  164,  164,  164,  164,  164,
-      164,  164,  175,  164,  176,  164,  164,  164,  164,  164,
-      164,  161,  164,  161,  164,  164,  164,  172,  173,  164,
-      174,  164,  164,  164,  164,  164,  164,  164,  164,  164,
-      164,  175,  164,  176,  164,  164,  164,  164,  164,  164,
-      161,  161,  161,  161,  161,  161,  161,  161,  161,  161,
-      161,  161,  177,  161,  178,  161,  180,  181,  180,  232,
-      180,  181,  180,  182,  232,  235,  183,  182,  184,  235,
-
-      183,  238,  184,  188,  189,  188,  238,  188,  189,  188,
-      190,  105,  105,  191,  190,  190,  356,  191,  105,  190,
-      105,  392,  392,  393,  357,  478,  392,  392,  394,  394,
-      479,  233, 2585,  358,  268,  268,  233,  236,  437,  480,
-      480,  236,  496,  499,  356,  356,  239,  497,  312, 2558,
-      312,  239,  357,  357,  472,  473,  474,  475,  476,  477,
-      515,  358,  358,  268,  268,  516,  559,  437, 2547,  521,
-      580,  560,  499,  356, 2546,  581,  185,  312,  186,  312,
-      185,  357,  186,  378,  379,  380,  381,  382,  383,  592,
-      358,  596, 2569,  192,  593,  193,  597,  192,  521,  193,
-
-      194,  195,  196,  195,  194,  194,  194,  197,  198,  199,
-      199,  200,  201,  202,  203,  194,  194,  204,  204,  194,
-      194,  199,  194,  194,  204,  204,  204,  204,  204,  204,
-      205,  204,  204,  204,  204,  204,  204,  204,  204,  206,
-      204,  204,  207,  208,  204,  204,  204,  204,  204,  204,
-      194,  204,  194,  204,  204,  204,  204,  204,  204,  205,
-      204,  204,  204,  204,  204,  204,  204,  204,  206,  204,
-      204,  207,  208,  204,  204,  204,  204,  204,  204,  199,
-      194,  194,  194,  194,  194,  194,  194,  194,  194,  194,
-      194,  209,  194,  210,  194,  211,  211,  211,  211,  211,
-
-      211, 2564,  396,  212,  397,  397,  212,  216,  217,  216,
-      385, 2563,  218, 2561,  219,  398,  220,  221,  216,  217,
-      216,  456,  582,  218,  583,  219, 2560,  220,  221,  225,
-      226,  225,  751,  751,  227,  499,  227,  227,  227,  228,
-      225,  226,  225,  519,  398,  227,  584,  227,  227,  227,
-      228,  582, 2557,  583,  423,  499, 1454,  406,  457,  458,
-      459,  460,  461,  462,  499,  603,  753,  753, 2508,  520,
-      604,  407,  519,  585,  408,  584,  378,  379,  380,  381,
-      382,  383, 2486,  423,  499,  213,  406,  214,  213,  605,
-      214,  386,  387,  388,  389,  390,  391,  222,  520,  223,
-
-      407,  615,  585,  408,  619, 2526,  616, 2525,  222,  620,
-      223,  378,  379,  380,  381,  382,  383, 2475,  605,  229,
-     2517,  230,  378,  379,  380,  381,  382,  383,  392,  392,
-      229, 1599,  230,  244,  245,  246,  245,  244,  247,  248,
-      249,  250,  251,  244,  244,  244,  244,  252,  244,  244,
-      249,  249,  244,  253,  244,  244,  254,  255,  249,  249,
-      249,  249,  256,  257,  249,  249,  249,  249,  258,  249,
-      249,  249,  249,  249,  259,  249,  249,  249,  249,  249,
-      249,  249,  249,  244,  249,  260,  255,  249,  249,  249,
-      249,  256,  257,  249,  249,  249,  249,  258,  249,  249,
-
-      249,  249,  249,  259,  249,  249,  249,  249,  249,  249,
-      249,  249,  244,  244,  244,  244,  244,  244,  244,  244,
-      244,  244,  261,  262,  263,  264,  265,  266,  270,  271,
-      270,  409,  272,  273, 2475,  274,  275,  276,  270,  271,
-      270,  277,  272,  273,  410,  274,  275,  276,  404,  499,
-     2511,  277,  405,  411,  518,  522,  601,  602,  499,  412,
-      409,  427,  545,  546,  547,  548,  549,  550, 2443,  278,
-      606,  680,  752,  410, 2501,  751,  751,  404,  499,  278,
-     2405,  405,  411,  518,  522,  601,  602,  499,  412, 2481,
-      427, 2480,  378,  379,  380,  381,  382,  383,  278,  606,
-
-      680,  378,  379,  380,  381,  382,  383, 2477,  278,  378,
-      379,  380,  381,  382,  383, 2398,  478, 2476,  279, 2381,
-      280,  479,  378,  379,  380,  381,  382,  383,  279, 2359,
-      280,  281,  282,  283,  282,  281,  284,  285,  286,  287,
-      288,  289,  281,  281,  281,  290,  281,  281,  286,  286,
-      281,  281,  281,  281,  281,  286,  286,  286,  286,  286,
-      291,  286,  286,  286,  286,  286,  292,  286,  286,  286,
-      286,  286,  293,  286,  286,  286,  286,  286,  286,  286,
-      286,  281,  286,  281,  286,  286,  286,  286,  286,  291,
-      286,  286,  286,  286,  286,  292,  286,  286,  286,  286,
-
-      286,  293,  286,  286,  286,  286,  286,  286,  286,  286,
-      281,  281,  281,  281,  281,  281,  281,  281,  281,  281,
-      294,  295,  296,  297,  298,  299,  105,  105,  105,  105,
-      105,  300,  301,  301,  302,  105,  105,  105,  105,  105,
-      105,  105,  105,  301,  301,  105,  105,  105,  105,  303,
-      301,  301,  301,  301,  301,  304,  301,  301,  301,  301,
-      301,  301,  301,  301,  301,  301,  301,  301,  301,  301,
-      301,  301,  301,  301,  301,  301,  105,  301,  105,  301,
-      301,  301,  301,  301,  304,  301,  301,  301,  301,  301,
-      301,  301,  301,  301,  301,  301,  301,  301,  301,  301,
-
-      301,  301,  301,  301,  301,  105,  105,  105,  105,  105,
-      105,  105,  105,  105,  105,  305,  306,  307,  308,  309,
-      310,  313,  314,  315,  314,  313,  316,  317,  318,  319,
-      313,  313,  313,  320,  321,  322,  323,  313,  324,  324,
-      313,  325,  326,  313,  327,  328,  318,  318,  318,  318,
-      318,  329,  318,  318,  318,  318,  318,  318,  318,  318,
-      318,  318,  318,  330,  318,  318,  318,  318,  318,  318,
-      318,  313,  318,  331,  328,  318,  318,  318,  318,  318,
-      329,  318,  318,  318,  318,  318,  318,  318,  318,  318,
-      318,  318,  330,  318,  318,  318,  318,  318,  318,  318,
-
-      313,  313,  313,  313,  313,  313,  313,  313,  313,  313,
-      332,  333,  334,  335,  336,  337,  339,  340,  339,  480,
-      480,  341, 2354,  339,  340,  339, 2449,  685,  341,  342,
-     1454,  359,  359,  359,  733,  343,  342,  359,  359,  359,
-      773,  496,  343,  499,  344,  361,  497,  348,  349,  348,
-      416,  344,  350,  774, 1444,  523,  685,  348,  349,  348,
-      351,  345,  350,  733,  620,  620,  352,  780,  345,  773,
-      351, 2351,  499,  344, 2442,  353,  352, 1043, 1044,  416,
-      344,  354,  774,  607,  523,  353, 2441,  781,  608,  783,
-      345,  354,  647,  647,  647,  784,  780,  345,  378,  379,
-
-      380,  381,  382,  383,  353, 1453,  346,  417, 2341,  785,
-      354,  418,  607,  346,  353,  419,  781,  608,  783, 2339,
-      354,  360,  450,  515,  784,  968, 1597,  360,  516,  363,
-      364,  365,  366,  367,  368, 2430,  417,  355,  785, 2300,
-      418,  559,  990,  991,  419,  992,  560,  355,  369,  369,
-      428,  450,  369,  369,  968,  438,  369,  369,  369,  369,
-      369,  369,  369,  369,  369,  439,  969,  369,  369,  369,
-      369,  369,  378,  379,  380,  381,  382,  383,  580,  428,
-      592,  536,  648,  581,  438,  593, 2413,  378,  379,  380,
-      381,  382,  383,  970,  439,  969, 2409,  971,  369, 1449,
-
-      369,  378,  379,  380,  381,  382,  383,  377,  377,  377,
-      377,  377,  377,  377,  377,  377,  378,  379,  380,  381,
-      382,  383,  970,  647,  647,  647,  971,  369,  369,  369,
-      369,  369,  369,  369,  369,  369,  369,  371,  372,  373,
-      374,  375,  376,  399,  609,  400,  681,  681,  681,  499,
-      401,  402,  403,  413,  420,  499,  414,  421,  519,  415,
-      934,  610,  972,  973,  422,  538,  539,  540,  541,  542,
-      543, 1598,  399,  609,  400,  681,  681,  681,  499,  401,
-      402,  403,  413,  420,  499,  414,  421,  519,  415,  934,
-      610,  972,  973,  422,  751,  751, 2403,  378,  379,  380,
-
-      381,  382,  383,  688,  688,  688, 2284,  378,  379,  380,
-      381,  382,  383,  648,  424, 2395,  378,  379,  380,  381,
-      382,  383,  425,  429,  444,  454,  522,  430,  426,  433,
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-
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+
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+
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+
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+
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+
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+
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+
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+
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+
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+
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+
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+     1470,  377,  378,  379,  380,  381,  382,  500,  977,  418,
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+
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+      500,  402,  403,  404, 2612,  423, 2586,  426,  649,  649,
+      649,  943,  983,  427, 1001, 1002, 1636, 1003, 2500,  377,
+
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+
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+      610,  500,  376,  936,  938,  376,  682,  682,  682, 2469,
+      441,  500,  608,  442,  452,  482,  483,  609,  683,  443,
+      521,  453,  454,  933,  500,  444,  500,  985,  991,  610,
+      500,  376,  936,  938,  376,  473,  474,  475,  476,  477,
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+      471,  471,  471,  471,  484,  485,  473,  474,  475,  476,
+
+      477,  478,  486,  992, 2591,  683,  487,  993,  488,  472,
+      472,  472,  472,  472,  472,  472,  472,  472, 1971, 1972,
+     1844, 2786, 1474,  484,  485,  546,  547,  548,  549,  550,
+      551,  486,  992,  604,  617,  487,  993,  488,  605,  618,
+      473,  474,  475,  476,  477,  478,  473,  474,  475,  476,
+      477,  478,  473,  474,  475,  476,  477,  478,  689,  689,
+      689, 1994, 1995,  473,  474,  475,  476,  477,  478,  473,
+      474,  475,  476,  477,  478,  489,  489,  489,  489,  489,
+      489,  489,  489,  489,  490,  491,  491,  491,  491,  491,
+      491,  491,  491,  492,  492,  492,  492,  492,  492,  492,
+
+      492,  492,  493,  493,  493,  493,  493,  493,  493,  494,
+      495,  496,  496,  496,  496,  496,  496,  496,  496,  496,
+      499,  499,  499,  621,  994,  565, 2466,  995,  622,  996,
+      823,  501,  823,  501,  502, 1134,  553, 2028, 2029, 1963,
+     2786, 2786, 2786, 2786,  500,  503,  504,  690,  505,  997,
+     2584,  937, 2786,  994, 2786,  502,  995,  506,  996,  507,
+      981,  508,  566,  567,  568,  569,  570,  571, 2786, 2786,
+     2786, 1971, 2786,  500,  503,  504,  982,  505,  997, 2786,
+      937, 2786,  502, 2105, 2106, 2583,  506, 1480,  507,  981,
+      508, 1994, 2786,  518,  500,  500,  500,  500,  500,  500,
+
+      500,  500,  500, 2028, 2786,  982,  562,  509,  510,  511,
+      512,  513,  514,  499,  499,  499,  554,  555,  556,  557,
+      558,  559,  518, 2454,  501, 2452,  501,  502,  509,  510,
+      515,  512,  513,  514,  998,  562,  999,  668,  503,  504,
+      669,  505,  660,  661,  662,  663,  664,  665, 1037, 1038,
+      506,  563,  507, 2575,  508,  509,  510,  515,  512,  513,
+      514, 1479, 2572,  998, 2564,  999,  668,  503,  504,  669,
+      505,  546,  547,  548,  549,  550,  551, 1037, 1038,  506,
+      563,  507,  525,  508,  500,  500,  526, 2563,  660,  661,
+      662,  663,  664,  665,  934,  527, 1048, 1051, 1079,  528,
+
+      509,  510,  511,  512,  513,  514, 2400, 1135, 2542, 1135,
+     2538,  525, 1136,  500,  500,  526,  546,  547,  548,  549,
+      550,  551, 2532,  934,  527, 1048, 1051, 1079,  528,  529,
+      529,  529,  529,  529,  529,  529,  529,  529,  530,  531,
       531,  531,  531,  531,  531,  531,  531,  532,  532,  532,
-      532,  532,  532,  532,  533,  534,  535,  535,  535,  535,
-
-      535,  535,  535,  535,  535,  544,  544,  544,  544,  544,
-      544,  544,  544,  544,  571,  571,  571,  571,  571,  571,
-      571,  571,  571,  572,  573,  573,  573,  573,  573,  573,
-      573,  573,  574,  574,  574,  574,  574,  574,  574,  574,
-      574,  575,  575,  575,  575,  575,  575,  575,  576,  577,
-      578,  578,  578,  578,  578,  578,  578,  578,  578,  631,
-      631,  631,  666,  986,  632,  667,  633,  670,  668,  669,
-     1306, 1306,  634,  657,  657,  657,  657,  657,  657,  657,
-      657,  657,  672,  672,  672,  672,  672,  672,  672,  672,
-      672,  666,  986,  987,  667, 2104,  670,  668,  669,  361,
-
-      378,  379,  380,  381,  382,  383, 2099,  658,  659,  660,
-      661,  662,  663, 1790, 1791, 2443,  658,  659,  660,  661,
-      662,  663,  987,  658,  659,  660,  661,  662,  663, 1444,
-     1896, 1897,  658,  659,  660,  661,  662,  663,  671,  673,
-      674,  674,  674,  674,  674,  674,  674,  674, 2094,  635,
-      649,  649, 1904, 1905,  649,  649, 1790, 2596,  649,  649,
-      649,  649,  649,  649,  649,  649,  649,  671,  988,  649,
-      649,  649,  649,  649,  675,  675,  675,  675,  675,  675,
-      675,  675,  675,  363,  364,  365,  366,  367,  368,  658,
-      659,  660,  661,  662,  663, 1039, 1042,  988, 1449, 2444,
-
-      649, 1443,  649,  676,  676,  676,  676,  676,  676,  676,
-      677,  678,  679,  679,  679,  679,  679,  679,  679,  679,
-      679, 2270,  706,  707, 1039, 1042,  734,  734,  734,  649,
-      649,  649,  649,  649,  649,  649,  649,  649,  649,  651,
-      652,  653,  654,  655,  656,  690,  690, 1925, 1926,  690,
-      690,  706,  707,  690,  690,  690,  690,  690,  690,  690,
-      690,  690, 1955, 1956,  690,  690,  690,  690,  690, 2077,
-     1448, 1896, 2596,  699,  700,  701,  702,  703,  704,  698,
-      698,  698,  698,  698,  698,  698,  698,  698,  699,  700,
-      701,  702,  703,  704,  708,  690, 2258,  690,  709,  709,
-
-      709,  709,  709,  709,  709,  709,  709,  710,  711,  711,
-      711,  711,  711,  711,  711,  711,  735,  378,  379,  380,
-      381,  382,  383,  708,  690,  690,  690,  690,  690,  690,
-      690,  690,  690,  690,  692,  693,  694,  695,  696,  697,
-     1904, 2596, 2025, 2026, 2062,  699,  700,  701,  702,  703,
-      704,  712,  712,  712,  712,  712,  712,  712,  712,  712,
-      713,  713,  713,  713,  713,  713,  713,  714,  715,  716,
-      716,  716,  716,  716,  716,  716,  716,  716,  724,  717,
-      717,  717,  717,  717,  717,  717,  717,  717,  725,  725,
-      725,  725,  725,  725,  725,  725,  725,  726,  727,  727,
-
-      727,  727,  727,  727,  727,  727, 2248,  724,  728,  728,
-      728,  728,  728,  728,  728,  728,  728,  729,  729,  729,
-      729,  729,  729,  729,  730,  731,  718,  719,  720,  721,
-      722,  723,  732,  732,  732,  732,  732,  732,  732,  732,
-      732,  734,  734,  734,  754,  758,  755,  755,  759,  760,
-      378,  379,  380,  381,  382,  383, 2051,  756,  744,  744,
-      744,  744,  744,  744,  744,  744,  744, 1070, 1100, 2224,
-     1790,  820, 1101, 2222,  758, 1910, 2041,  759,  760,  821,
-      472,  473,  474,  475,  476,  477,  756,  769,  769,  769,
-      745,  746,  747,  748,  749,  750, 1070, 1100,  753,  753,
-
-      820, 1101,  745,  746,  747,  748,  749,  750,  821, 1084,
-      745,  746,  747,  748,  749,  750, 1925, 2596,  745,  746,
-      747,  748,  749,  750, 2031,  378,  379,  380,  381,  382,
-      383,  735,  736,  736, 1896, 2211,  736,  736, 1084, 2003,
-      736,  736,  736,  736,  736,  736,  736,  736,  736, 1955,
-     2596,  736,  736,  736,  736,  736,  761,  761,  761,  761,
-      761,  761,  761,  761,  761,  762,  763,  763,  763,  763,
-      763,  763,  763,  763,  769,  769,  769,  770,  776,  776,
-      776, 1104,  736, 2207,  736,  764,  764,  764,  764,  764,
-      764,  764,  764,  764,  765,  765,  765,  765,  765,  765,
-
-      765,  766,  767,  776,  776,  776,  359,  359,  359, 2018,
-     1104,  736,  736,  736,  736,  736,  736,  736,  736,  736,
-      736,  738,  739,  740,  741,  742,  743,  768,  768,  768,
-      768,  768,  768,  768,  768,  768,  362,  362,  362,  362,
-      362,  362,  362,  362,  362,  787,  787,  787,  787,  787,
-      787,  787,  787,  787,  788,  789,  789,  789,  789,  789,
-      789,  789,  789, 1105,  770, 2011, 1106,  385,  777,  790,
-      790,  790,  790,  790,  790,  790,  790,  790,  791,  791,
-      791,  791,  791,  791,  791,  792,  793,  813,  813,  813,
-     2025, 2596, 1105,  777,  536, 1106,  360,  794,  794,  794,
-
-      794,  794,  794,  794,  794,  794,  369,  369, 1904, 2197,
-      369,  369, 2004, 2010,  369,  369,  369,  369,  369,  369,
-      369,  369,  369, 2194, 2188,  369,  369,  369,  369,  369,
-      370,  370,  370,  370,  370,  370,  370,  370,  370,  795,
-      795,  795,  795,  795,  795,  795,  795,  795,  386,  387,
-      388,  389,  390,  391, 2175, 1107,  369, 2163,  369,  796,
-      797,  797,  797,  797,  797,  797,  797,  797,  798,  798,
-      798,  798,  798,  798,  798,  798,  798,  814,  538,  539,
-      540,  541,  542,  543, 1107,  369,  369,  369,  369,  369,
-      369,  369,  369,  369,  369,  371,  372,  373,  374,  375,
-
-      376,  799,  799,  799,  799,  799,  799,  799,  800,  801,
-      802,  802,  802,  802,  802,  802,  802,  802,  802,  377,
-      377,  377,  377,  377,  377,  377,  377,  377,  463,  463,
-      463,  463,  463,  463,  463,  463,  463,  803,  465,  465,
-      465,  465,  465,  465,  465,  465,  466,  466,  466,  466,
-      466,  466,  466,  466,  466,  467,  467,  467,  467,  467,
-      467,  467,  804,  469,  470,  470,  470,  470,  470,  470,
-      470,  470,  470,  384,  384,  384,  384,  384,  384,  384,
-      384,  384,  805,  805,  805,  805,  805,  805,  805,  805,
-      805,  806,  807,  807,  807,  807,  807,  807,  807,  807,
-
-      808,  808,  808,  808,  808,  808,  808,  808,  808,  809,
-      809,  809,  809,  809,  809,  809,  810,  811,  812,  812,
-      812,  812,  812,  812,  812,  812,  812,  396,  822,  397,
-      397,  818,  823,  818,  826,  456,  819,  819, 1108, 1239,
-      398,  455,  455,  455,  455,  455,  455,  455,  455,  455,
-     2144, 2132,  937,  937, 2124,  824,  937,  822,  937,  937,
-      937,  823, 1794,  826,  624,  624,  624, 1108, 1239,  398,
-      825,  998,  457,  458,  459,  460,  461,  462,  378,  379,
-      380,  381,  382,  383,  824,  827,  378,  379,  380,  381,
-      382,  383, 1911,  378,  379,  380,  381,  382,  383,  825,
-
-     2112,  378,  379,  380,  381,  382,  383,  831,  378,  379,
-      380,  381,  382,  383,  827, 2107,  499,  378,  379,  380,
-      381,  382,  383,  929, 1240, 2102, 1241,  828,  829,  378,
-      379,  380,  381,  382,  383,  830,  831,  836, 1243,  378,
-      379,  380,  381,  382,  383,  499, 1244,  832,  837,  833,
-     2080, 1707,  929, 1240,  628, 1241,  828,  829,  834, 1677,
-     2023, 2021, 2558, 1655,  830,  835,  836, 1243,  378,  379,
-      380,  381,  382,  383,  840, 1244,  832,  837,  833,  897,
-      378,  379,  380,  381,  382,  383, 1645,  834,  378,  379,
-      380,  381,  382,  383,  835,  838,  378,  379,  380,  381,
-
-      382,  383,  841,  840, 1756,  842,  839, 1246,  897,  847,
-     1967, 1963,  378,  379,  380,  381,  382,  383,  843,  844,
-     1953, 1929, 1927, 1923,  838,  378,  379,  380,  381,  382,
-      383,  841, 1925,  845,  842,  839, 1246, 2030,  847,  378,
-      379,  380,  381,  382,  383, 2559,  846,  843,  844,  848,
-      378,  379,  380,  381,  382,  383,  378,  379,  380,  381,
-      382,  383,  845,  378,  379,  380,  381,  382,  383,  378,
-      379,  380,  381,  382,  383,  846,  849,  850,  848, 1917,
-     1517, 1902, 1894, 1486,  378,  379,  380,  381,  382,  383,
-      378,  379,  380,  381,  382,  383,  966,  966,  855,  854,
-
-      966, 1880,  966,  966,  966,  849,  850,  851,  378,  379,
-      380,  381,  382,  383,  919,  919,  919,  919,  919,  919,
-      919,  919,  852,  853, 1463, 1848, 1832,  855,  854,  378,
-      379,  380,  381,  382,  383,  856,  851,  857,  858,  378,
-      379,  380,  381,  382,  383,  378,  379,  380,  381,  382,
-      383,  852,  853,  378,  379,  380,  381,  382,  383,  859,
-      860, 1391, 1803, 1368,  856, 1788,  857,  858,  881,  378,
-      379,  380,  381,  382,  383,  861, 1247,  862, 1357, 1782,
-     1774,  378,  379,  380,  381,  382,  383,  864,  859,  860,
-      378,  379,  380,  381,  382,  383, 1768,  881,  545,  546,
-
-      547,  548,  549,  550,  861, 1247,  862,  378,  379,  380,
-      381,  382,  383, 1955,  863, 1248,  864,  867, 2061,  378,
-      379,  380,  381,  382,  383,  378,  379,  380,  381,  382,
-      383,  378,  379,  380,  381,  382,  383,  378,  379,  380,
-      381,  382,  383,  863, 1248,  865,  867,  866,  499,  378,
-      379,  380,  381,  382,  383,  869,  931,  868,  933,  870,
-     1249, 1122,  499, 1122, 1745, 1703, 1123, 1123,  378,  379,
-      380,  381,  382,  383,  865, 1186,  866,  499,  378,  379,
-      380,  381,  382,  383,  869,  931,  868,  933,  870, 1249,
-     1689,  499, 1687,  378,  379,  380,  381,  382,  383,  378,
-
-      379,  380,  381,  382,  383,  378,  379,  380,  381,  382,
-      383, 1026, 1250, 1670, 1664,  499,  378,  379,  380,  381,
-      382,  383,  871,  876,  930, 1660,  932,  872, 1089, 1027,
-     1028, 1251,  877,  499,  878,  873,  882,  874, 1252,  879,
-     1026, 1250,  883,  875,  499, 1253, 1090,  880, 1319, 1313,
-     1299,  871,  876,  930,  884,  932,  872, 1089, 1027, 1028,
-     1251,  877,  499,  878,  873,  882,  874, 1252,  879, 1287,
-     1279,  883,  875, 1620, 1253, 1090,  880,  378,  379,  380,
-      381,  382,  383,  884,  885, 1265,  896,  378,  379,  380,
-      381,  382,  383,  378,  379,  380,  381,  382,  383,  888,
-
-     1259,  378,  379,  380,  381,  382,  383,  378,  379,  380,
-      381,  382,  383,  885,  889,  896, 1254,  890,  378,  379,
-      380,  381,  382,  383,  886,  637,  637,  637,  888, 1008,
-     1454, 1454,  378,  379,  380,  381,  382,  383,  891, 1257,
-     1449, 1449,  892,  889,  887, 1254,  890,  378,  379,  380,
-      381,  382,  383,  886,  913, 1268,  378,  379,  380,  381,
-      382,  383,  920,  920,  921,  922,  920,  891,  920,  920,
-      920,  892, 1255,  887, 1085, 1085,  378,  379,  380,  381,
-      382,  383,  893,  913, 1268, 1086, 1444, 1269,  894,  378,
-      379,  380,  381,  382,  383,  895, 1444, 1596, 1592,  378,
-
-      379,  380,  381,  382,  383,  472,  473,  474,  475,  476,
-      477,  893, 1590, 1270, 1086,  641, 1269,  894,  658,  659,
-      660,  661,  662,  663,  895,  898,  898,  898,  898,  898,
-      898,  898,  898,  898, 1587, 1585,  378,  379,  380,  381,
-      382,  383, 1270,  378,  379,  380,  381,  382,  383,  899,
-      900,  900,  900,  900,  900,  900,  900,  900,  901,  901,
-      901,  901,  901,  901,  901,  901,  901,  902,  902,  902,
-      902,  902,  902,  902,  903,  904,  905,  905,  905,  905,
-      905,  905,  905,  905,  905,  377,  377,  377,  377,  377,
-      377,  377,  377,  377,  359,  906,  906,  906,  906,  906,
-
-      906,  906,  906,  906,  906,  906,  906,  906,  906,  906,
-      906,  906,  377,  377,  377,  377,  377,  377,  377,  377,
-      377,  907,  907,  907,  907,  907,  907,  907,  907,  907,
-      907,  907,  908,  909,  907,  910,  907,  907,  907,  907,
-      907,  907,  907,  907,  907,  907,  907,  907,  911,  911,
-      911,  911,  911,  911,  911,  911,  911,  471,  471,  471,
-      471,  471,  471,  471,  471,  471,  488,  488,  488,  488,
-      488,  488,  488,  488,  488,  489,  490,  490,  490,  490,
-      490,  490,  490,  490,  491,  491,  491,  491,  491,  491,
+      532,  532,  532,  532,  532,  532,  533,  533,  533,  533,
+      533,  533,  533,  534,  535,  536,  536,  536,  536,  536,
+      536,  536,  536,  536,  545,  545,  545,  545,  545,  545,
+      545,  545,  545,  572,  572,  572,  572,  572,  572,  572,
+      572,  572,  573,  574,  574,  574,  574,  574,  574,  574,
+
+      574,  575,  575,  575,  575,  575,  575,  575,  575,  575,
+      576,  576,  576,  576,  576,  576,  576,  577,  578,  579,
+      579,  579,  579,  579,  579,  579,  579,  579,  587,  626,
+      626,  626,  588,  756,  627, 2384,  628, 2105, 2786,  670,
+      671,  589,  629, 1096, 1110,  590,  633,  633,  633, 1844,
+     1137,  634, 1137,  635, 1977, 1138, 1111,  587, 1114,  636,
+      672,  588,  639,  639,  639, 2382,  640,  641,  670,  671,
+      589, 2523, 1096, 1110,  590,  642,  659,  659,  659,  659,
+      659,  659,  659,  659,  659, 1111, 1963, 1114, 1115,  672,
+     2522, 2082, 2517,  660,  661,  662,  663,  664,  665,  700,
+
+      701,  702,  703,  704,  705,  660,  661,  662,  663,  664,
+      665,  660,  661,  662,  663,  664,  665, 1115,  630,  673,
+      673,  673,  673,  673,  673,  673,  673,  673,  689,  689,
+      689, 2514, 2502, 2332, 2325,  637,  674,  675,  675,  675,
+      675,  675,  675,  675,  675,  719,  720,  721,  722,  723,
+      724,  643,  651,  651, 1971, 2322,  651,  651, 2320, 2089,
+      651,  651,  651,  651,  651,  651,  651,  651,  651,  707,
+      651,  651,  651,  651,  651,  676,  676,  676,  676,  676,
+      676,  676,  676,  676,  677,  677,  677,  677,  677,  677,
+      677,  678,  679,  735,  735,  735, 2477, 1116,  707, 1117,
+
+     1118,  651, 2315,  651,  680,  680,  680,  680,  680,  680,
+      680,  680,  680, 1100, 2313, 1100, 2472,  690, 1321,  708,
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-     1301, 1125, 1125,  734,  508,  509,  510,  511,  512,  513,
-      508,  509,  514,  511,  512,  513,  545,  546,  547,  548,
-      549,  550,  518, 1289,  688,  508,  509,  514,  511,  512,
-      513,  499,  499,  499,  499,  499,  499,  499,  499,  499,
-      528,  528,  528,  528,  528,  528,  528,  528,  528, 1281,
-      508,  509,  514,  511,  512,  513,  529,  530,  530,  530,
-      530,  530,  530,  530,  530,  531,  531,  531,  531,  531,
-
-      531,  531,  531,  531,  532,  532,  532,  532,  532,  532,
-      532,  533,  534,  535,  535,  535,  535,  535,  535,  535,
-      535,  535,  924,  530,  530,  530,  530,  530,  530,  530,
-      530,  499,  499,  499,  499,  499,  499,  499,  499,  499,
-      498,  936,  936,  936,  936,  936,  936,  936,  936,  936,
-      936,  936,  936,  936,  936,  936,  936,  936,  499,  499,
-      499,  499,  499,  499,  499,  499,  499,  937,  937,  937,
-      937,  937,  937,  937,  937,  937,  937,  937,  937,  937,
-      937,  937,  937,  937,  937,  938,  938,  938,  938,  938,
-      938,  938,  938,  938,  537,  537,  537,  537,  537,  537,
-
-      537,  537,  537,  939,  939,  939,  939,  939,  939,  939,
-      939,  939,  940,  941,  941,  941,  941,  941,  941,  941,
-      941,  942,  942,  942,  942,  942,  942,  942,  942,  942,
-      943,  943,  943,  943,  943,  943,  943,  944,  945,  946,
-      946,  946,  946,  946,  946,  946,  946,  946,  544,  544,
-      544,  544,  544,  544,  544,  544,  544,  571,  571,  571,
-      571,  571,  571,  571,  571,  571,  572,  573,  573,  573,
-      573,  573,  573,  573,  573,  574,  574,  574,  574,  574,
       574,  574,  574,  574,  575,  575,  575,  575,  575,  575,
-      575,  576,  577,  578,  578,  578,  578,  578,  578,  578,
-
-      578,  578,  552,  551,  551,  551,  551,  551,  551,  551,
-      551,  551,  947,  947,  947,  947,  947,  947,  947,  947,
-      947,  948,  949,  949,  949,  949,  949,  949,  949,  949,
-      950,  950,  950,  950,  950,  950,  950,  950,  950,  951,
-      951,  951,  951,  951,  951,  951,  952,  953,  954,  954,
-      954,  954,  954,  954,  954,  954,  954, 1267,  647,  637,
-      956,  563,  563,  563,  563,  563,  563,  563,  563,  563,
-      957,  957,  957,  957,  957,  957,  957,  957,  957, 1010,
-     1010,  631, 1005,  553,  554,  555,  556,  557,  558,  956,
-      958,  959,  959,  959,  959,  959,  959,  959,  959,  960,
-
-      960,  960,  960,  960,  960,  960,  960,  960,  961,  961,
-      961,  961,  961,  961,  961,  962,  963,  647,  647,  647,
-     1005,  624, 1000, 1000,  545,  546,  547,  548,  549,  550,
-      964,  964,  964,  964,  964,  964,  964,  964,  964,  544,
-      544,  544,  544,  544,  544,  544,  544,  544,  965,  965,
-      965,  965,  965,  965,  965,  965,  965,  965,  965,  965,
-      965,  965,  965,  965,  965,  544,  544,  544,  544,  544,
-      544,  544,  544,  544,  966,  966,  966,  966,  966,  966,
-      966,  966,  966,  966,  966,  966,  966,  966,  966,  966,
-      966,  966,  967,  967,  967,  967,  967,  967,  967,  967,
-
-      967,  631,  631,  631, 1024, 1024, 1024,  648, 1003,  650,
-      650,  650,  650,  650,  650,  650,  650,  650, 1014, 1014,
-     1014, 1014, 1014, 1014, 1014, 1014, 1014, 1015, 1016, 1016,
-     1016, 1016, 1016, 1016, 1016, 1016, 1017, 1017, 1017, 1017,
-     1017, 1017, 1017, 1017, 1017, 1018, 1018, 1018, 1018, 1018,
-     1018, 1018, 1019, 1020, 1021, 1021, 1021, 1021, 1021, 1021,
-     1021, 1021, 1021,  657,  657,  657,  657,  657,  657,  657,
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-      672, 1022,  674,  674,  674,  674,  674,  674,  674,  674,
-     1245,  635,  649,  649, 1025, 1242,  649,  649, 1121,  359,
-
-      649,  649,  649,  649,  649,  649,  649,  649,  649, 1029,
-     1427,  649,  649,  649,  649,  649,  675,  675,  675,  675,
-      675,  675,  675,  675,  675,  676,  676,  676,  676,  676,
-      676,  676, 1023,  678,  776,  681,  681,  681, 1029, 1427,
-     1031, 1428,  649,  782,  649,  679,  679,  679,  679,  679,
-      679,  679,  679,  679,  769,  658,  659,  660,  661,  662,
-      663, 1030,  718,  719,  720,  721,  722,  723, 1032, 1031,
-     1428,  649,  649,  649,  649,  649,  649,  649,  649,  649,
-      649,  651,  652,  653,  654,  655,  656, 1033,  775, 1071,
-     1030,  658,  659,  660,  661,  662,  663, 1032, 1034,  745,
-
-      746,  747,  748,  749,  750, 1045,  658,  659,  660,  661,
-      662,  663, 1302,  681, 1302,  686, 1033, 1303, 1303,  658,
-      659,  660,  661,  662,  663,  682, 1013, 1034, 1012, 1040,
-     1040, 1040, 1011, 1010,  658,  659,  660,  661,  662,  663,
-     1007,  658,  659,  660,  661,  662,  663,  657,  657,  657,
-      657,  657,  657,  657,  657,  657,  647, 1035, 1035, 1035,
-     1035, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1035, 1035,
-     1035, 1035, 1035, 1035,  657,  657,  657,  657,  657,  657,
-      657,  657,  657, 1036, 1036, 1036, 1036, 1036, 1036, 1036,
-     1036, 1036, 1036, 1036, 1037, 1006, 1036, 1005, 1036, 1036,
-
-     1036, 1036, 1036, 1036, 1036, 1036, 1036, 1036, 1036, 1036,
-     1038, 1038, 1038, 1038, 1038, 1038, 1038, 1038, 1038, 1041,
-      688,  688,  688,  691,  691,  691,  691,  691,  691,  691,
-      691,  691, 1046, 1046, 1046, 1046, 1046, 1046, 1046, 1046,
-     1046, 1047, 1048, 1048, 1048, 1048, 1048, 1048, 1048, 1048,
-     1049, 1049, 1049, 1049, 1049, 1049, 1049, 1049, 1049, 1050,
-     1050, 1050, 1050, 1050, 1050, 1050, 1051, 1052, 1053, 1053,
-     1053, 1053, 1053, 1053, 1053, 1053, 1053,  698,  698,  698,
-      698,  698,  698,  698,  698,  698,  709,  709,  709,  709,
-      709,  709,  709,  709,  709, 1054,  711,  711,  711,  711,
-
-      711,  711,  711,  711,  378,  379,  380,  381,  382,  383,
-      689,  690,  690, 1002, 1001,  690,  690, 1000,  997,  690,
-      690,  690,  690,  690,  690,  690,  690,  690, 1058, 1429,
-      690,  690,  690,  690,  690,  712,  712,  712,  712,  712,
-      712,  712,  712,  712,  713,  713,  713,  713,  713,  713,
-      713, 1055,  715, 1056, 1056, 1056,  996, 1058, 1429, 1059,
-     1430,  690,  995,  690,  716,  716,  716,  716,  716,  716,
-      716,  716,  716,  699,  700,  701,  702,  703,  704, 1304,
-      994, 1304,  993, 1060, 1305, 1305,  989,  597, 1059, 1430,
-      690,  690,  690,  690,  690,  690,  690,  690,  690,  690,
-
-      692,  693,  694,  695,  696,  697,  699,  700,  701,  702,
-      703,  704, 1060,  698,  698,  698,  698,  698,  698,  698,
-      698,  698,  980,  979,  978,  977,  699,  700,  701,  702,
-      703,  704,  688, 1061, 1061, 1061, 1061, 1061, 1061, 1061,
-     1061,  976,  786, 1057, 1061, 1061, 1061, 1061, 1061, 1061,
-     1061, 1061, 1061,  698,  698,  698,  698,  698,  698,  698,
-      698,  698, 1062, 1062, 1062, 1062, 1062, 1062, 1062, 1062,
-     1062, 1062, 1062, 1063, 1064, 1062,  782, 1062, 1062, 1062,
-     1062, 1062, 1062, 1062, 1062, 1062, 1062, 1062, 1062, 1065,
-     1065, 1065, 1065, 1065, 1065, 1065, 1065, 1065,  717,  717,
-
-      717,  717,  717,  717,  717,  717,  717,  725,  725,  725,
-      725,  725,  725,  725,  725,  725,  726,  727,  727,  727,
-      727,  727,  727,  727,  727,  728,  728,  728,  728,  728,
+      575,  575,  575,  576,  576,  576,  576,  576,  576,  576,
+      577,  578,  579,  579,  579,  579,  579,  579,  579,  579,
+      579,  553,  552,  552,  552,  552,  552,  552,  552,  552,
+      552,  956,  956,  956,  956,  956,  956,  956,  956,  956,
+      957,  958,  958,  958,  958,  958,  958,  958,  958,  959,
+      959,  959,  959,  959,  959,  959,  959,  959,  960,  960,
+      960,  960,  960,  960,  960,  961,  962,  963,  963,  963,
+      963,  963,  963,  963,  963,  963, 1509, 1108,  964,  965,
+      564,  564,  564,  564,  564,  564,  564,  564,  564,  966,
+
+      966,  966,  966,  966,  966,  966,  966,  966, 1507, 1325,
+     1325,  554,  555,  556,  557,  558,  559,  964,  965,  967,
+      968,  968,  968,  968,  968,  968,  968,  968,  719,  720,
+      721,  722,  723,  724, 1323, 1323,  546,  547,  548,  549,
+      550,  551,  969,  969,  969,  969,  969,  969,  969,  969,
+      969, 1321, 1092,  546,  547,  548,  549,  550,  551,  970,
+      970,  970,  970,  970,  970,  970,  971,  972,  973,  973,
+      973,  973,  973,  973,  973,  973,  973,  545,  545,  545,
+      545,  545,  545,  545,  545,  545,  974,  974,  974,  974,
+      974,  974,  974,  974,  974,  545,  545,  545,  545,  545,
+
+      545,  545,  545,  545,  975,  975,  975,  975,  975,  975,
+      975,  975,  975,  975,  975,  975,  975,  975,  975,  975,
+      975,  975,  976,  976,  976,  976,  976,  976,  976,  976,
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+      651,  651,  651,  651,  652,  652,  652,  652,  652,  652,
+      652,  652,  652, 1025, 1025, 1025, 1025, 1025, 1025, 1025,
+     1025, 1025, 1076, 1076, 1076, 1076, 1076, 1076, 1076, 1076,
+      651, 1495,  651, 1026, 1027, 1027, 1027, 1027, 1027, 1027,
+     1027, 1027, 1028, 1028, 1028, 1028, 1028, 1028, 1028, 1028,
+
+     1028,  746,  747,  748,  749,  750,  751, 1485, 1035,  651,
+      651,  651,  651,  651,  651,  651,  651,  651,  651,  653,
+      654,  655,  656,  657,  658, 1029, 1029, 1029, 1029, 1029,
+     1029, 1029, 1030, 1031, 1032, 1032, 1032, 1032, 1032, 1032,
+     1032, 1032, 1032,  659,  659,  659,  659,  659,  659,  659,
+      659,  659,  673,  673,  673,  673,  673,  673,  673,  673,
+      673, 1033,  675,  675,  675,  675,  675,  675,  675,  675,
+      676,  676,  676,  676,  676,  676,  676,  676,  676,  677,
+      677,  677,  677,  677,  677,  677, 1034,  679,  680,  680,
+      680,  680,  680,  680,  680,  680,  680, 1039, 1040, 1465,
+
+     1466, 1483, 1482, 1477, 1041,  659,  659,  659,  659,  659,
+      659,  659,  659,  659, 1071, 1071, 1072, 1073, 1071, 1042,
+     1071, 1071, 1071, 1472, 1463, 1431, 1039, 1040, 1465, 1466,
+     1077, 1077, 1043, 1041, 1077, 1138, 1077, 1077, 1077, 1138,
+     1136, 1136,  660,  661,  662,  663,  664,  665, 1042,  660,
+      661,  662,  663,  664,  665,  660,  661,  662,  663,  664,
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+      664,  665, 1049, 1049, 1049,  660,  661,  662,  663,  664,
+      665,  649, 1044, 1044, 1044, 1044, 1044, 1044, 1044, 1044,
+     1044, 1044, 1044, 1044, 1044, 1044, 1044, 1044, 1044,  659,
+
+      659,  659,  659,  659,  659,  659,  659,  659, 1045, 1045,
+     1045, 1045, 1045, 1045, 1045, 1045, 1045, 1045, 1045, 1045,
+     1045, 1045, 1045, 1045, 1045, 1045, 1047, 1047, 1047, 1047,
+     1047, 1047, 1047, 1047, 1047,  689,  689,  689,  692,  692,
+      692,  692,  692,  692,  692,  692,  692,  815, 1345, 1344,
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+     1055, 1050, 1056, 1057, 1057, 1057, 1057, 1057, 1057, 1057,
+     1057, 1058, 1058, 1058, 1058, 1058, 1058, 1058, 1058, 1058,
+     1059, 1059, 1059, 1059, 1059, 1059, 1059, 1060, 1061, 1062,
+     1062, 1062, 1062, 1062, 1062, 1062, 1062, 1062,  699,  699,
+
+      699,  699,  699,  699,  699,  699,  699,  710,  710,  710,
+      710,  710,  710,  710,  710,  710, 1119, 1119, 1119, 1119,
+     1119, 1119, 1119, 1119,  690,  691,  691, 1332, 1321,  691,
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+      712,  712,  712,  712,  712,  712,  712,  713,  713,  713,
+      713,  713,  713,  713,  713,  713, 1065, 1065, 1065, 1484,
+      735, 1467, 1494, 1496,  691, 1306,  691,  714,  714,  714,
+      714,  714,  714,  714, 1064,  716,  717,  717,  717,  717,
+      717,  717,  717,  717,  717, 1067, 1508, 1569, 1484, 1068,
+
+      689, 1494, 1496,  691,  691,  691,  691,  691,  691,  691,
+      691,  691,  691,  693,  694,  695,  696,  697,  698, 1298,
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+      700,  701,  702,  703,  704,  705,  700,  701,  702,  703,
+      704,  705, 1069, 1016, 1016, 1066,  689, 1070, 1070, 1070,
+     1070, 1070, 1070, 1070, 1070,  626,  700,  701,  702,  703,
+      704,  705, 1070, 1070, 1070, 1070, 1070, 1070, 1070, 1070,
+     1070,  699,  699,  699,  699,  699,  699,  699,  699,  699,
+     1071, 1071, 1071, 1071, 1071, 1071, 1071, 1071, 1071, 1071,
+
+     1071, 1071, 1071, 1071, 1071, 1071, 1071, 1071, 1074, 1074,
+     1074, 1074, 1074, 1074, 1074, 1074, 1074,  718,  718,  718,
+      718,  718,  718,  718,  718,  718,  726,  726,  726,  726,
+      726,  726,  726,  726,  726,  727,  728,  728,  728,  728,
       728,  728,  728,  728,  729,  729,  729,  729,  729,  729,
-      729,  730,  731,  732,  732,  732,  732,  732,  732,  732,
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-      717,  717, 1067, 1067, 1067, 1067, 1067, 1067, 1067, 1067,
-     1067, 1067, 1067, 1067, 1067, 1067, 1067, 1067, 1067,  779,
-      775, 1066,  717,  717,  717,  717,  717,  717,  717,  717,
-      717, 1068, 1068, 1068, 1068, 1068, 1068, 1068, 1068, 1068,
-
-      734,  734,  734,  718,  719,  720,  721,  722,  723, 1068,
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-     1068, 1068, 1068, 1068, 1068, 1068, 1068, 1069, 1069, 1069,
-     1069, 1069, 1069, 1069, 1069, 1069,  737,  737,  737,  737,
-      737,  737,  737,  737,  737, 1072, 1072, 1072, 1072, 1072,
-     1072, 1072, 1072, 1072, 1073, 1074, 1074, 1074, 1074, 1074,
-     1074, 1074, 1074, 1075, 1075, 1075, 1075, 1075, 1075, 1075,
-     1075, 1075, 1076, 1076, 1076, 1076, 1076, 1076, 1076, 1077,
-     1078, 1079, 1079, 1079, 1079, 1079, 1079, 1079, 1079, 1079,
-      735,  736,  736,  687,  686,  736,  736, 1085, 1085,  736,
-
-      736,  736,  736,  736,  736,  736,  736,  736, 1086, 1431,
-      736,  736,  736,  736,  736,  744,  744,  744,  744,  744,
-      744,  744,  744,  744,  761,  761,  761,  761,  761,  761,
-      761,  761,  761, 1082, 1082, 1082, 1432, 1086, 1431,  684,
-     1433,  736,  665,  736, 1080,  763,  763,  763,  763,  763,
-      763,  763,  763,  764,  764,  764,  764,  764,  764,  764,
-      764,  764, 1087,  664, 1087, 1432,  646, 1088, 1088, 1433,
-      736,  736,  736,  736,  736,  736,  736,  736,  736,  736,
-      738,  739,  740,  741,  742,  743,  765,  765,  765,  765,
-      765,  765,  765, 1081,  767,  768,  768,  768,  768,  768,
-
-      768,  768,  768,  768,  754, 1091,  755,  755, 1092, 1109,
-     1109, 1109, 1109, 1109, 1109, 1109, 1109,  756, 1093, 1434,
-     1435, 1436,  644, 1083,  744,  744,  744,  744,  744,  744,
-      744,  744,  744,  622, 1091,  621,  618, 1092,  617,  745,
-      746,  747,  748,  749,  750,  614,  756, 1093, 1434, 1435,
-     1436,  745,  746,  747,  748,  749,  750,  613,  612,  745,
-      746,  747,  748,  749,  750,  745,  746,  747,  748,  749,
-      750,  769,  769,  769, 1098, 1098, 1098,  611,  745,  746,
-      747,  748,  749,  750,  734, 1094, 1094, 1094, 1094, 1094,
-     1094, 1094, 1094, 1094, 1094, 1094, 1094, 1094, 1094, 1094,
-
-     1094, 1094,  744,  744,  744,  744,  744,  744,  744,  744,
-      744, 1095, 1095, 1095, 1095, 1095, 1095, 1095, 1095, 1095,
-     1095, 1095,  599,  598, 1095, 1096, 1095, 1095, 1095, 1095,
-     1095, 1095, 1095, 1095, 1095, 1095, 1095, 1095, 1097, 1097,
-     1097, 1097, 1097, 1097, 1097, 1097, 1097,  776,  776,  776,
-     1102, 1102, 1102, 1112, 1112, 1112, 1112, 1112, 1112, 1112,
-     1112,  770,  595,  594, 1099,  362,  362,  362,  362,  362,
-      362,  362,  362,  362, 1109, 1109, 1109, 1109, 1109, 1109,
-     1109, 1109, 1109,  362,  362,  362,  362,  362,  362,  362,
-      362,  362, 1110, 1110, 1110, 1110, 1110, 1110, 1110, 1110,
-
-     1110, 1110, 1110,  591,  590, 1110,  395, 1110, 1110, 1110,
-     1110, 1110, 1110, 1110, 1110, 1110, 1110, 1110, 1110, 1111,
-     1111, 1111, 1111, 1111, 1111, 1111, 1111, 1111,  370,  370,
-      370,  370,  370,  370,  370,  370,  370,  777, 2596,  243,
-     1103, 1112, 1112, 1112, 1112, 1112, 1112, 1112, 1112, 1112,
-      370,  370,  370,  370,  370,  370,  370,  370,  370, 1113,
-     1113, 1113, 1113, 1113, 1113, 1113, 1113, 1113, 1113, 1113,
-      243,  241, 1113,  241, 1113, 1113, 1113, 1113, 1113, 1113,
-     1113, 1113, 1113, 1113, 1113, 1113, 1114, 1114, 1114, 1114,
-     1114, 1114, 1114, 1114, 1114,  906,  906,  906,  906,  906,
-
-      906,  906,  906,  907,  907, 2596, 2596,  907, 2596,  907,
-      907,  907,  384,  384,  384,  384,  384,  384,  384,  384,
-      384, 1115, 1115, 1115, 1115, 1115, 1115, 1115, 1115, 1115,
-     1115, 1115, 1115, 1115, 1115, 1115, 1115, 1115,  384,  384,
-      384,  384,  384,  384,  384,  384,  384, 1116, 1116, 1116,
-     1116, 1116, 1116, 1116, 1116, 1116, 1116, 1116,  819,  819,
-     1116, 1127, 1116, 1116, 1116, 1116, 1116, 1116, 1116, 1116,
-     1116, 1116, 1116, 1116, 1117, 1117, 1117, 1117, 1117, 1117,
-     1117, 1117, 1117, 1119,  813,  813, 1128, 2596, 2596, 2596,
-     1127,  378,  379,  380,  381,  382,  383, 2596, 2596, 1129,
-
-     1130,  378,  379,  380,  381,  382,  383, 1131, 1437, 1132,
-     1255, 1255, 1255, 2596, 2596, 1128,  378,  379,  380,  381,
-      382,  383,  378,  379,  380,  381,  382,  383, 1129, 1130,
-      378,  379,  380,  381,  382,  383, 1131, 1437, 1132, 2596,
-      378,  379,  380,  381,  382,  383, 2596,  378,  379,  380,
-      381,  382,  383, 1133, 1257, 1257, 1257,  378,  379,  380,
-      381,  382,  383, 1134,  378,  379,  380,  381,  382,  383,
-     1439, 2596, 1440, 1120,  378,  379,  380,  381,  382,  383,
-     2596, 2596, 1133, 2596, 1137, 2596, 1138, 2596, 2596, 1259,
-     1259, 1259, 1134, 1135, 2596, 2596, 2596, 1441, 1136, 1439,
-
-     1256, 1440, 1458, 1139, 1459, 1470, 2596,  378,  379,  380,
-      381,  382,  383, 1137, 1140, 1138,  378,  379,  380,  381,
-      382,  383, 1135, 1265, 1024, 1024, 1441, 1136, 2596, 2596,
-     2596, 1458, 1139, 1459, 1470, 1143,  378,  379,  380,  381,
-      382,  383, 2596, 1140, 1258,  378,  379,  380,  381,  382,
-      383,  378,  379,  380,  381,  382,  383,  378,  379,  380,
-      381,  382,  383, 1141, 1143, 1144, 1472, 1142,  378,  379,
-      380,  381,  382,  383, 1209, 1209, 1478, 1146, 1209, 1260,
-     1209, 1209, 1209, 1145, 1208, 1208, 1208, 1208, 1208, 1208,
-     1208, 1208, 1141, 1147, 1144, 1472, 1142, 1479,  378,  379,
-
-      380,  381,  382,  383, 2596, 1478, 1146, 2596, 2596, 1279,
-     1040, 1040, 1145, 1266, 2596,  378,  379,  380,  381,  382,
-      383, 2596, 1147, 2596, 1148, 1149, 1479, 2596,  378,  379,
-      380,  381,  382,  383,  378,  379,  380,  381,  382,  383,
-      378,  379,  380,  381,  382,  383, 2596,  378,  379,  380,
-      381,  382,  383, 1148, 1149, 1150, 1152, 1484, 1538, 1539,
-      920,  920, 1151, 1153,  920, 1540,  920,  920,  920, 1155,
-     2596,  378,  379,  380,  381,  382,  383,  378,  379,  380,
-      381,  382,  383, 2596, 1150, 1152, 1484, 1538, 1539, 2596,
-     2596, 1151, 1153, 2596, 1540, 2596, 2596, 1154, 1155, 1280,
-
-     2596,  378,  379,  380,  381,  382,  383, 1156,  378,  379,
-      380,  381,  382,  383,  378,  379,  380,  381,  382,  383,
-      378,  379,  380,  381,  382,  383, 1154,  378,  379,  380,
-      381,  382,  383, 1164, 2596, 1157, 1156, 1159, 1541, 1184,
-     1542, 1158, 2596, 2596, 2596, 2596, 2596,  378,  379,  380,
-      381,  382,  383, 2596, 1160, 1162, 2596, 2596,  378,  379,
-      380,  381,  382,  383, 1157, 1163, 1159, 1541, 2596, 1542,
-     1158,  378,  379,  380,  381,  382,  383,  378,  379,  380,
-      381,  382,  383, 1160, 1162, 1161, 1165, 2596,  378,  379,
-      380,  381,  382,  383, 1163, 2596,  378,  379,  380,  381,
-
-      382,  383,  378,  379,  380,  381,  382,  383,  378,  379,
-      380,  381,  382,  383, 1161, 1165,  378,  379,  380,  381,
-      382,  383,  378,  379,  380,  381,  382,  383, 1166, 1167,
-     1543,  378,  379,  380,  381,  382,  383, 1172, 1168,  378,
-      379,  380,  381,  382,  383,  378,  379,  380,  381,  382,
-      383,  378,  379,  380,  381,  382,  383, 1166, 1167, 1543,
-     2596, 2596, 1169, 1170, 1171, 2596, 1172, 1168, 2596, 2596,
-     1287, 1056, 1056,  378,  379,  380,  381,  382,  383,  378,
-      379,  380,  381,  382,  383,  378,  379,  380,  381,  382,
-      383, 1169, 1170, 1171, 1173, 2596,  378,  379,  380,  381,
-
-      382,  383, 1174,  378,  379,  380,  381,  382,  383, 2596,
-      378,  379,  380,  381,  382,  383, 2596, 2596, 2596, 2596,
-     2596, 1175, 1176, 1173,  378,  379,  380,  381,  382,  383,
-     1177, 1174,  455,  455,  455,  455,  455,  455,  455,  455,
-      455, 2596, 2596, 2596,  378,  379,  380,  381,  382,  383,
-     1175, 1176, 1178, 1179, 1180, 1583, 1186, 1186, 1186, 1177,
-     1288,  378,  379,  380,  381,  382,  383, 2596, 2596,  378,
-      379,  380,  381,  382,  383, 2596, 2596, 1181, 2596, 2596,
-     2596, 1178, 1179, 1180, 1583,  378,  379,  380,  381,  382,
-      383, 2596,  378,  379,  380,  381,  382,  383, 1182, 2596,
-
-      378,  379,  380,  381,  382,  383, 1181, 1185,  378,  379,
-      380,  381,  382,  383, 1183, 2596, 2596, 2596,  378,  379,
-      380,  381,  382,  383, 2596, 2596, 2596, 1182,  378,  379,
-      380,  381,  382,  383, 2596, 1536, 1185, 1188, 1189, 2596,
-     2596, 2596, 2596, 1183,  378,  379, 1187,  381,  382,  383,
-     1537, 2596,  378,  379,  380,  381,  382,  383, 1192, 2596,
-      378,  379,  380,  381,  382,  383, 1188, 1189,  378,  379,
-      380,  381,  382,  383, 1190, 1193, 1191, 1584, 1196, 1537,
-      378,  379,  380,  381,  382,  383, 2596, 1192,  378,  379,
-      380,  381,  382,  383, 1229, 1229, 2596, 2596, 1229, 1199,
-
-     1229, 1229, 1229, 1190, 1193, 1191, 1584, 1196, 2596, 2596,
-     2596, 2596,  378,  379,  380,  381,  382,  383, 1194, 1197,
-     2596, 1198,  378,  379,  380,  381,  382,  383, 1199, 1195,
-      378,  379,  380,  381,  382,  383,  378,  379,  380,  381,
-      382,  383, 2596, 2596, 2596, 2596, 2596, 1194, 1197, 1200,
-     1198, 1201,  472,  473,  474,  475,  476,  477, 1195, 1586,
-     1203, 1588, 1589, 1214,  378,  379,  380,  381,  382,  383,
-      378,  379,  380,  381,  382,  383, 2596, 2596, 1200, 2596,
-     1201,  378,  379,  380,  381,  382,  383, 1202, 1586, 1203,
-     1588, 1589, 1214, 2596, 1204, 1207, 2596,  378,  379,  380,
-
-      381,  382,  383,  378,  379,  380,  381,  382,  383, 1205,
-     1591, 1593, 1594, 1206, 2596, 2596, 1202,  378,  379,  380,
-      381,  382,  383, 1204, 1207,  472,  473,  474,  475,  476,
-      477, 1595,  378,  379,  380,  381,  382,  383, 1205, 1591,
-     1593, 1594, 1206, 1299, 1082, 1082,  378,  379,  380,  381,
-      382,  383, 2596,  378,  379,  380,  381,  382,  383, 2596,
-     1595,  378,  379,  380,  381,  382,  383, 1208, 1208, 1208,
-     1208, 1208, 1208, 1208, 1208, 1208,  455,  455,  455,  455,
-      455,  455,  455,  455,  455, 1209, 1209, 1209, 1209, 1209,
-     1209, 1209, 1209, 1209, 1209, 1209, 1209, 1209, 1209, 1209,
-
-     1209, 1209, 1209, 1210, 1210, 1210, 1210, 1210, 1210, 1210,
-     1210, 1210,  377,  377,  377,  377,  377,  377,  377,  377,
-      377, 1211, 1212, 1213, 2596, 1600, 1215,  472,  473,  474,
-      475,  476,  477, 1300, 2596, 2596,  501, 2596, 1216,  471,
-      471,  471,  471,  471,  471,  471,  471,  471, 2596,  501,
-     1211, 1212, 1213, 1221, 1600, 1215, 2596, 2596, 2596, 2596,
-     1217,  472,  473,  474,  475,  476,  477, 1216, 2596, 2596,
-     2596,  472,  473,  474,  475,  476,  477,  472,  473,  474,
-      475,  476,  477,  472,  473,  474,  475,  476,  477, 1217,
-      501, 1601, 1602,  472,  473,  474,  475,  476,  477,  936,
-
-      936,  936,  936,  936,  936,  936,  936,  501, 2596, 2596,
-      508,  509,  514,  511,  512,  513, 1218, 1219,  501, 1625,
-     1601, 1602, 1629,  508,  509,  514,  511,  512,  513, 2596,
-      501, 1232, 1232, 2596, 1630, 1232,  501, 1232, 1232, 1232,
-     2596, 2596,  501, 2596, 1658, 1218, 1219, 1220, 1625, 1237,
-     1237, 1629, 2596, 1237,  501, 1237, 1237, 1237, 1222, 2596,
-      501, 2596, 1224, 1630,  508,  509,  514,  511,  512,  513,
-      501, 1227, 1223, 1658, 1659, 2596, 1220,  501, 2596, 2596,
-     2596,  508,  509,  514,  511,  512,  513, 1222,  501, 2596,
-     1226, 1224,  508,  509,  514,  511,  512,  513, 1225, 2596,
-
-     1227, 2596, 2596, 1659,  508,  509,  514,  511,  512,  513,
-      508,  509,  514,  511,  512,  513,  508,  509,  514,  511,
-      512,  513, 2596, 2596, 2596, 2596, 2596, 1225,  508,  509,
-      514,  511,  512,  513,  508,  509,  514,  511,  512,  513,
-     2596, 2596, 2596, 2596,  508,  509,  514,  511,  512,  513,
-     2596,  508,  509,  514,  511,  512,  513, 2596, 2596, 2596,
-     2596, 2596,  508,  509,  514,  511,  512,  513,  499,  499,
-      499,  499,  499,  499,  499,  499,  499,  537,  537,  537,
-      537,  537,  537,  537,  537,  537, 1228, 1228, 1228, 1228,
-     1228, 1228, 1228, 1228, 1228, 1228, 1228, 1228, 1228, 1228,
-
-     1228, 1228, 1228,  537,  537,  537,  537,  537,  537,  537,
-      537,  537, 1229, 1229, 1229, 1229, 1229, 1229, 1229, 1229,
-     1229, 1229, 1229, 1229, 1229, 1229, 1229, 1229, 1229, 1229,
-     1230, 1230, 1230, 1230, 1230, 1230, 1230, 1230, 1230,  551,
-      551,  551,  551,  551,  551,  551,  551,  551, 1231, 1231,
-     1231, 1231, 1231, 1231, 1231, 1231, 1231, 1231, 1231, 1231,
-     1231, 1231, 1231, 1231, 1231,  551,  551,  551,  551,  551,
-      551,  551,  551,  551, 1232, 1232, 1232, 1232, 1232, 1232,
-     1232, 1232, 1232, 1232, 1232, 1232, 1232, 1232, 1232, 1232,
-     1232, 1232, 1233, 1233, 1233, 1233, 1233, 1233, 1233, 1233,
-
-     1233, 1234, 1235,  563,  563,  563,  563,  563,  563,  563,
-      563,  563, 1236, 1236, 1236, 1236, 1236, 1236, 1236, 1236,
-     1236, 1236, 1236, 1236, 1236, 1236, 1236, 1236, 1236, 2596,
-     1234, 1235,  563,  563,  563,  563,  563,  563,  563,  563,
-      563,  545,  546,  547,  548,  549,  550,  545,  546,  547,
-      548,  549,  550, 2596, 2596, 2596,  545,  546,  547,  548,
-      549,  550, 1237, 1237, 1237, 1237, 1237, 1237, 1237, 1237,
-     1237, 1237, 1237, 1237, 1237, 1237, 1237, 1237, 1237, 1237,
-     1238, 1238, 1238, 1238, 1238, 1238, 1238, 1238, 1238,  545,
-      546,  547,  548,  549,  550,  544,  544,  544,  544,  544,
-
-      544,  544,  544,  544,  650,  650,  650,  650,  650,  650,
-      650,  650,  650, 1261, 1261, 1261, 1261, 1261, 1261, 1261,
-     1261, 1261, 1261, 1261, 1261, 1261, 1261, 1261, 1261, 1261,
-      650,  650,  650,  650,  650,  650,  650,  650,  650, 1262,
-     1262, 1262, 1262, 1262, 1262, 1262, 1262, 1262, 1262, 1262,
-     2596, 2596, 1262, 2596, 1262, 1262, 1262, 1262, 1262, 1262,
-     1262, 1262, 1262, 1262, 1262, 1262, 1263, 1263, 1263, 1263,
-     1263, 1263, 1263, 1263, 1263, 1035, 1035, 1035, 1035, 1035,
-     1035, 1035, 1035, 1036, 1036, 1271, 2596, 1036, 2596, 1036,
-     1036, 1036, 1272, 1274, 1669, 1683, 2596, 1273,  658,  659,
-
-      660,  661,  662,  663,  658,  659,  660,  661,  662,  663,
-     2596, 1284, 1284, 1684, 1271, 1284, 2596, 1284, 1284, 1284,
-     2596, 1272, 1274, 1669, 1683, 1276, 1273, 1275, 1283, 1283,
-     1283, 1283, 1283, 1283, 1283, 1283,  658,  659,  660,  661,
-      662,  663, 1684, 2596,  658,  659,  660,  661,  662,  663,
-      658,  659,  660,  661,  662,  663, 1275,  658,  659,  660,
-      661,  662,  663,  658,  659,  660,  661,  662,  663, 2596,
-     1313, 1098, 1098,  658,  659,  660,  661,  662,  663,  657,
-      657,  657,  657,  657,  657,  657,  657,  657,  691,  691,
-      691,  691,  691,  691,  691,  691,  691, 1283, 1283, 1283,
-
-     1283, 1283, 1283, 1283, 1283, 1283,  691,  691,  691,  691,
-      691,  691,  691,  691,  691, 1284, 1284, 1284, 1284, 1284,
-     1284, 1284, 1284, 1284, 1284, 1284, 1284, 1284, 1284, 1284,
-     1284, 1284, 1284, 1285, 1285, 1285, 1285, 1285, 1285, 1285,
-     1285, 1285, 1061, 1061, 1061, 1061, 1061, 1061, 1061, 1061,
-     1062, 1062, 1290, 2596, 1062, 2596, 1062, 1062, 1062, 1292,
-     1314, 2596, 1685, 1293, 1291,  699,  700,  701,  702,  703,
-      704,  699,  700,  701,  702,  703,  704, 2596, 2596, 2596,
-     2596, 1290,  698,  698,  698,  698,  698,  698,  698,  698,
-      698, 1685, 1293, 1291, 2596, 2596, 2596,  699,  700,  701,
-
-      702,  703,  704, 2596,  699,  700,  701,  702,  703,  704,
-      699,  700,  701,  702,  703,  704,  718,  719,  720,  721,
-      722,  723,  718,  719,  720,  721,  722,  723,  718,  719,
-      720,  721,  722,  723,  717,  717,  717,  717,  717,  717,
-      717,  717,  717,  737,  737,  737,  737,  737,  737,  737,
-      737,  737, 1295, 1295, 1295, 1295, 1295, 1295, 1295, 1295,
-     1295, 1295, 1295, 1295, 1295, 1295, 1295, 1295, 1295,  737,
-      737,  737,  737,  737,  737,  737,  737,  737, 1296, 1296,
-     1296, 1296, 1296, 1296, 1296, 1296, 1296, 1296, 1296, 1088,
-     1088, 1296, 2596, 1296, 1296, 1296, 1296, 1296, 1296, 1296,
-
-     1296, 1296, 1296, 1296, 1296, 1297, 1297, 1297, 1297, 1297,
-     1297, 1297, 1297, 1297, 1094, 1094, 1094, 1094, 1094, 1094,
-     1094, 1094, 1095, 1095, 1309, 1310, 1095,  361, 1095, 1095,
-     1095,  745,  746,  747,  748,  749,  750,  745,  746,  747,
-      748,  749,  750,  744,  744,  744,  744,  744,  744,  744,
-      744,  744, 1311, 1309, 1310, 1319, 1102, 1102,  385, 1686,
-     2596,  745,  746,  747,  748,  749,  750,  361, 2596, 1119,
-      813,  813, 2596, 2596, 2596,  745,  746,  747,  748,  749,
-      750, 1311,  378,  379,  380,  381,  382,  383, 1686,  745,
-      746,  747,  748,  749,  750, 1265, 1024, 1024, 2596,  745,
-
-      746,  747,  748,  749,  750,  385, 1688, 1692, 1693, 1696,
-     2596,  363,  364,  365,  366,  367,  368,  362,  362,  362,
-      362,  362,  362,  362,  362,  362,  370,  370,  370,  370,
-      370,  370,  370,  370,  370, 1688, 1692, 1693, 1696,  386,
-      387,  388,  389,  390,  391, 1320, 2596, 2596, 2596, 2596,
-     2596,  363,  364,  365,  366,  367,  368,  369,  369, 1120,
-     2596,  369,  369, 2596, 2596,  369,  369,  369,  369,  369,
-      369,  369,  369,  369, 1328, 1329,  369,  369,  369,  369,
-      369, 2596, 2596, 2596, 1331, 1266,  386,  387,  388,  389,
-      390,  391,  384,  384,  384,  384,  384,  384,  384,  384,
-
-      384, 2596, 2596, 1328, 1329, 2596, 2596,  369, 2596,  369,
-     1453, 1259, 1259, 1331, 1454, 2596,  378,  379,  380,  381,
-      382,  383,  378,  379,  380,  381,  382,  383, 2596, 1330,
-      378,  379,  380,  381,  382,  383,  369,  369,  369,  369,
-      369,  369,  369,  369,  369,  369,  371,  372,  373,  374,
-      375,  376,  369,  369, 1332, 1697,  369,  369, 1330, 2596,
-      369,  369,  369,  369,  369,  369,  369,  369,  369, 1333,
-     2596,  369,  369,  369,  369,  369,  378,  379,  380,  381,
-      382,  383, 2596, 1332, 1697, 1694,  378,  379,  380,  381,
-      382,  383, 2596, 2596, 2596, 1334, 2596, 1695, 1333, 1335,
-
-     1455, 1336,  369, 2596,  369, 2596,  378,  379,  380,  381,
-      382,  383, 2596, 2596, 1694, 2596, 2596,  378,  379,  380,
-      381,  382,  383, 1337, 1334, 1338, 1695, 2596, 1335, 2596,
-     1336,  369,  369,  369,  369,  369,  369,  369,  369,  369,
-      369,  371,  372,  373,  374,  375,  376, 2596, 1339, 1340,
-     1341, 2596, 1337, 2596, 1338, 2596,  378,  379,  380,  381,
-      382,  383,  378,  379,  380,  381,  382,  383, 1279, 1040,
-     1040,  378,  379,  380,  381,  382,  383, 1339, 1340, 1341,
-      378,  379,  380,  381,  382,  383,  378,  379,  380,  381,
-      382,  383, 1342, 1343,  378,  379,  380,  381,  382,  383,
-
-     1344, 1347, 1348,  378,  379,  380,  381,  382,  383,  378,
-      379,  380,  381,  382,  383,  378,  379,  380,  381,  382,
-      383, 1342, 1343, 2596, 2596, 1345, 2596, 1349, 1698, 1344,
-     1347, 1348, 2596,  378,  379,  380,  381,  382,  383,  378,
-      379,  380,  381,  382,  383, 2596, 2596, 2596,  378,  379,
-      380,  381,  382,  383, 1345, 1346, 1349, 1698, 1280, 1351,
-      378,  379,  380,  381,  382,  383,  378,  379,  380,  381,
-      382,  383, 2596,  378,  379,  380,  381,  382,  383, 1350,
-     1353, 2596, 2596, 2596, 1346, 2596, 1352, 1699, 1351,  378,
-      379,  380,  381,  382,  383, 2596, 2596, 1357, 1357, 1357,
-
-      378,  379,  380,  381,  382,  383, 1354, 2596, 1350,  378,
-      379,  380,  381,  382,  383, 1352, 1699, 2596,  378,  379,
-      380,  381,  382,  383, 1355,  378,  379,  380,  381,  382,
-      383, 1356, 1700, 1690, 1359, 1354, 1691, 2596,  378,  379,
-      380,  381,  382,  383,  378,  379,  380,  381,  382,  383,
-     2596, 2596, 2596, 1355,  378,  379,  380,  381,  382,  383,
-     1356, 1700, 1690, 2596, 2596, 1691,  378,  379,  380,  381,
-      382,  383,  378,  379,  380,  381,  382,  383, 1360,  378,
-      379,  380,  381,  382,  383,  378,  379, 1358,  381,  382,
-      383,  378,  379,  380,  381,  382,  383, 1287, 1056, 1056,
-
-     2596, 1361, 1362, 1701, 1372, 1702, 1364, 1360, 1363,  378,
-      379,  380,  381,  382,  383, 1365, 1368, 1368, 1368, 2596,
-     1299, 1082, 1082, 2596,  378,  379,  380,  381,  382,  383,
-     1361, 1362, 1701, 1372, 1702, 1364, 2596, 1363, 2596, 2596,
-     1366, 1313, 1098, 1098, 1365,  378,  379,  380,  381,  382,
-      383,  378,  379,  380,  381,  382,  383,  378,  379,  380,
-      381,  382,  383,  378,  379,  380,  381,  382,  383, 1366,
-      378,  379,  380,  381,  382,  383,  378,  379,  380,  381,
-      382,  383, 1367, 1370, 1724, 1725, 1393, 1288,  378,  379,
-      380,  381,  382,  383, 1371,  378,  379,  380,  381,  382,
-
-      383, 1374, 2596, 2596,  378,  379, 1369,  381,  382,  383,
-     1300, 1367, 1370, 1724, 1725, 1393, 1373,  378,  379,  380,
-      381,  382,  383, 1371, 2596, 1375, 1319, 1102, 1102, 2596,
-     1374, 1314, 1376,  378,  379,  380,  381,  382,  383,  378,
-      379,  380,  381,  382,  383, 1373, 2596, 2596,  378,  379,
-      380,  381,  382,  383, 1375,  378,  379,  380,  381,  382,
-      383, 1376,  378,  379,  380,  381,  382,  383, 2596, 2596,
-     2596,  378,  379,  380,  381,  382,  383, 1377,  378,  379,
-      380,  381,  382,  383, 1378, 1379, 1726, 2596, 1729, 1730,
-     1731, 1380, 2596, 1391, 1391, 1391, 2596,  378,  379,  380,
-
-      381,  382,  383, 2596, 2596, 2596, 1377, 2596, 2596, 1381,
-     1732, 1733, 2596, 1378, 1379, 1726, 1320, 1729, 1730, 1731,
-     1380, 1390,  465,  465,  465,  465,  465,  465,  465,  465,
-     2596, 1734,  378,  379,  380,  381,  382,  383, 1381, 1732,
-     1733, 1394,  378,  379,  380,  381,  382,  383,  378,  379,
-      380,  381,  382,  383,  378,  379,  380,  381,  382,  383,
-     1734, 2596, 2596, 2596, 1396, 2596, 1735, 1453, 1259, 1259,
-     1394, 1454,  378,  379,  380,  381,  382,  383, 1186, 1186,
-     1186,  378,  379, 1392,  381,  382,  383,  378,  379,  380,
-      381,  382,  383, 1396, 1397, 1735, 2596, 2596, 2596, 2596,
-
-     1382, 2596, 1736, 1383, 1384, 1395, 1680, 2596, 1398, 2596,
-     1681, 1682, 1400, 1737, 1385, 1386, 1387, 1443, 1255, 1255,
-     1388, 2596, 2596, 1397, 1444,  378,  379,  380,  381,  382,
-      383, 1736, 1383, 1384, 1395, 1680, 1399, 1398, 1401, 1681,
-     1682, 1400, 1737, 1385, 1386, 1387, 2596, 2596, 2596, 1388,
-      378,  379,  380,  381,  382,  383, 2596, 1455, 2596,  378,
-      379,  380,  381,  382,  383, 1399, 2596, 1401, 1389,  378,
-      379,  380,  381,  382,  383,  378,  379,  380,  381,  382,
-      383, 1402, 1404,  378,  379,  380,  381,  382,  383, 1403,
-      378,  379,  380,  381,  382,  383, 1405,  378,  379,  380,
-
-      381,  382,  383, 1406,  456, 1407, 2596, 1445, 2596, 2596,
-     1402, 1404,  472,  473,  474,  475,  476,  477, 1403, 2596,
-     2596, 2596, 2596, 2596, 1408, 1405,  378,  379,  380,  381,
-      382,  383, 1406, 1409, 1407,  378,  379,  380,  381,  382,
-      383,  457,  458,  459,  460,  461,  462,  378,  379,  380,
-      381,  382,  383, 1408, 2596,  378,  379,  380,  381,  382,
-      383, 1410, 1409,  456,  378,  379,  380,  381,  382,  383,
-      378,  379,  380,  381,  382,  383,  501, 2596, 2596, 2596,
-     1415,  378,  379,  380,  381,  382,  383, 1411, 1738, 1744,
-     1410, 2596, 1747, 2596,  378,  379,  380,  381,  382,  383,
-
-      457,  458,  459,  460,  461,  462,  455,  455,  455,  455,
-      455,  455,  455,  455,  455, 1412, 1411, 1738, 1744, 2596,
-     1414, 1747,  472,  473,  474,  475,  476,  477, 1413,  472,
-      473,  474,  475,  476,  477,  501, 2596, 2596, 2596, 2596,
-     2596,  501, 2596, 2596, 1412, 2596, 1756, 1756, 1756, 1414,
-      508,  509,  514,  511,  512,  513,  472,  473,  474,  475,
-      476,  477, 1416, 1763, 2596, 1418,  472,  473,  474,  475,
-      476,  477,  472,  473,  474,  475,  476,  477,  501, 2596,
-     2596, 2596, 2596, 2596, 2596,  501, 1448, 1257, 1257, 2596,
-     2596, 1416, 1763, 1449, 1418,  501, 1727,  536, 1764, 2596,
-
-     1767, 1728, 1784, 2596,  536, 2596, 1417, 2596, 1421,  508,
-      509,  514,  511,  512,  513,  508,  509,  514,  511,  512,
-      513, 1419,  501, 2596, 2596, 1727, 2596, 1764,  501, 1767,
-     1728, 1784, 2596, 2596,  501, 1417, 1757, 1421, 2596, 1420,
-     2596, 2596, 2596, 2596, 2596,  501, 2596, 2596, 1422, 2596,
-     1785, 1423,  508,  509,  514,  511,  512,  513, 1424,  508,
-      509,  514,  511,  512,  513,  552, 1793, 2596, 1420,  508,
-      509,  514,  511,  512,  513,  552, 1450, 1422, 2596, 1785,
-     1423,  538,  539,  540,  541,  542,  543, 1424,  538,  539,
-      540,  541,  542,  543, 2596, 1793,  508,  509,  514,  511,
-
-      512,  513,  508,  509,  514,  511,  512,  513,  508,  509,
-      514,  511,  512,  513, 2596, 2596, 1805, 2596, 2596,  508,
-      509,  514,  511,  512,  513,  537,  537,  537,  537,  537,
-      537,  537,  537,  537,  551,  551,  551,  551,  551,  551,
-      551,  551,  551, 1425, 1426, 1805,  553,  554,  555,  556,
-      557,  558,  564, 2596, 2596, 2596,  553,  554,  555,  556,
-      557,  558,  564,  563,  563,  563,  563,  563,  563,  563,
-      563,  563, 2596, 1426,  718,  719,  720,  721,  722,  723,
-     2596,  545,  546,  547,  548,  549,  550, 2596, 1461,  565,
-      566,  567,  568,  569,  570, 2596, 2041, 2041, 2041,  565,
-
-      566,  567,  568,  569,  570,  545,  546,  547,  548,  549,
-      550,  649,  649, 2596, 2596,  649,  649, 1461, 1462,  649,
-      649,  649,  649,  649,  649,  649,  649,  649, 1468, 1806,
-      649,  649,  649,  649,  649,  650,  650,  650,  650,  650,
-      650,  650,  650,  650, 1463, 1463, 1463, 1462, 2596, 1464,
-     2596,  658,  659,  660,  661,  662,  663, 1465, 1806, 1807,
-     1808,  649, 2596,  649, 2596, 2596,  658,  659,  660,  661,
-      662,  663,  472,  473,  474,  475,  476,  477, 2596, 1467,
-      658,  659,  660,  661,  662,  663, 2042, 2596, 1807, 1808,
-      649,  649,  649,  649,  649,  649,  649,  649,  649,  649,
-
-      651,  652,  653,  654,  655,  656,  649,  649, 1467, 1469,
-      649,  649, 1475, 2596,  649,  649,  649,  649,  649,  649,
-      649,  649,  649, 2596, 2596,  649,  649,  649,  649,  649,
-     2596, 2596,  658,  659, 1466,  661,  662,  663, 1469, 1809,
-     1810, 1368, 1368, 1368,  658,  659,  660,  661,  662,  663,
-      699,  700,  701,  702,  703,  704,  649, 2596,  649,  691,
-      691,  691,  691,  691,  691,  691,  691,  691, 1809, 1810,
-     2596, 2596,  658,  659,  660,  661,  662,  663, 1474, 1524,
-     2596, 2596, 2051, 2051, 2051,  649,  649,  649,  649,  649,
-      649,  649,  649,  649,  649,  651,  652,  653,  654,  655,
-
-      656,  690,  690, 1476, 2596,  690,  690, 1474, 1524,  690,
-      690,  690,  690,  690,  690,  690,  690,  690, 1811, 1812,
-      690,  690,  690,  690,  690,  545,  546,  547,  548,  549,
-      550, 1525, 1476, 1486, 1486, 1486, 1570, 2596, 2596, 2596,
-      699,  700,  701,  702,  703,  704, 2596, 1811, 1812, 2596,
-     2596,  690, 2596,  690,  737,  737,  737,  737,  737,  737,
-      737,  737,  737, 2596, 2596, 2596,  699,  700,  701,  702,
-      703,  704, 2052, 1480,  472,  473,  474,  475,  476,  477,
-      690,  690,  690,  690,  690,  690,  690,  690,  690,  690,
-      692,  693,  694,  695,  696,  697,  690,  690, 1481, 1482,
-
-      690,  690, 1480, 2596,  690,  690,  690,  690,  690,  690,
-      690,  690,  690, 2596, 2596,  690,  690,  690,  690,  690,
-     2596,  378,  379, 1487,  381,  382,  383, 1481, 1482, 2596,
-     2596, 2596, 2596, 1813, 2596, 2596,  745,  746,  747,  748,
-      749,  750, 2596, 2596, 2596, 1814,  690, 2596,  690,  472,
-      473,  474,  475,  476,  477, 2596,  745,  746,  747,  748,
-      749,  750, 1813,  745,  746,  747,  748,  749,  750, 2596,
-     2596, 2596, 2596,  501, 1814,  690,  690,  690,  690,  690,
-      690,  690,  690,  690,  690,  692,  693,  694,  695,  696,
-      697,  736,  736, 2596, 2596,  736,  736, 2596, 2596,  736,
-
-      736,  736,  736,  736,  736,  736,  736,  736, 1815, 1575,
-      736,  736,  736,  736,  736, 1816, 1817, 1488,  378,  379,
-      380,  381,  382,  383,  472,  473,  474,  475,  476,  477,
-      378,  379,  380,  381,  382,  383, 2596, 1815, 2596, 2596,
-     2596,  736, 2596,  736, 1816, 1817, 1488,  508,  509,  514,
-      511,  512,  513, 2596, 2596, 2596, 2596,  378,  379,  380,
-      381,  382,  383, 1493, 2596, 2596, 2596, 2596, 2596, 2596,
-      736,  736,  736,  736,  736,  736,  736,  736,  736,  736,
-      738,  739,  740,  741,  742,  743,  736,  736, 1489, 1491,
-      736,  736, 1493, 1818,  736,  736,  736,  736,  736,  736,
-
-      736,  736,  736, 2596, 2596,  736,  736,  736,  736,  736,
-     1819, 2596, 2596, 2596, 2596, 2596, 2596, 1489, 1491, 2596,
-     2596, 2596, 1818, 2077, 2077, 2077,  378,  379,  380,  381,
-      382,  383, 2596, 2596, 2596, 2596,  736, 2078,  736, 1819,
-     2596,  378,  379,  380,  381,  382,  383, 2596, 2596, 2596,
-     2596, 2596,  378,  379,  380,  381,  382,  383, 1490, 2596,
-     2596, 1492, 2596, 2596, 2596,  736,  736,  736,  736,  736,
-      736,  736,  736,  736,  736,  738,  739,  740,  741,  742,
-      743, 2596, 2596, 2596, 2596, 2596, 2596, 1490, 1494, 1495,
-     1492, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596,  378,
-
-      379,  380,  381,  382,  383, 2596, 2596,  378,  379,  380,
-      381,  382,  383, 2079, 1517, 1517, 1517, 1494, 1495, 1496,
-      378,  379,  380,  381,  382,  383, 2596, 2596, 2596, 1518,
-     2596, 1497, 2596, 2596, 2596,  378,  379,  380,  381,  382,
-      383, 2596, 2596, 2596, 2596, 2596, 2596, 1820, 1496, 1821,
-      378,  379,  380,  381,  382,  383, 1822, 1500, 1823, 1498,
-     1497, 1824, 1443, 1255, 1255, 2596, 2596, 2596, 1499, 1444,
-      378,  379,  380,  381,  382,  383, 1820, 2596, 1821,  378,
-      379,  380,  381,  382,  383, 1822, 1500, 1823, 1498, 2596,
-     1824, 1448, 1257, 1257, 2596, 2596, 2596, 1499, 1449, 2596,
-
-     2596, 2596, 2596, 2596, 1663, 2596, 1501, 2596, 2596, 2596,
-     2596, 1486, 1486, 1486,  378,  379,  380,  381,  382,  383,
-      378,  379,  380,  381,  382,  383, 2596, 2596, 2596,  378,
-      379,  380,  381,  382,  383, 1501, 1502, 1825, 1503, 2596,
-     2596, 2596, 1826, 1827, 1847, 2596, 2596, 2596, 2596, 1634,
-     1504, 1505, 1445,  378,  379,  380,  381,  382,  383, 2596,
-     2596, 2596, 2596, 2596, 2596, 1502, 1825, 1503, 2596, 2596,
-     2596, 1826, 1827, 1847, 1507, 2596, 2596, 2596, 1634, 1504,
-     2596, 1450,  378,  379,  380,  381,  382,  383, 2596,  378,
-      379,  380,  381,  382,  383,  378,  379,  380,  381,  382,
-
-      383, 1635, 2596, 1507, 2596, 2596, 2596, 2596, 2596, 1506,
-     1849, 1850, 1851, 1508,  378,  379,  380,  381,  382,  383,
-     2596, 2596, 2596, 2596, 1357, 1357, 1357,  378,  379,  380,
-      381,  382,  383,  378,  379,  380,  381,  382,  383, 1849,
-     1850, 1851, 1508, 2596, 2596, 2596, 1510,  378,  379,  380,
-      381,  382,  383, 1511, 1852, 2596,  378,  379,  380,  381,
-      382,  383, 1512,  378,  379,  380,  381,  382,  383, 1853,
-     1509, 2596, 2596, 2596, 2596, 1510, 2596, 2596, 2596, 2596,
-     2596, 2596, 1511, 1852, 2596, 2596, 2596, 1854, 1855, 2596,
-     2596, 1512,  378,  379,  380,  381,  382,  383, 1853, 1509,
-
-     1514,  465,  465,  465,  465,  465,  465,  465,  465, 1515,
-     1517, 1517, 1517, 2596, 1513, 1856, 1854, 1855, 2596, 2596,
-     2596, 2596, 2596, 2596, 1516, 1518, 1857, 2596, 2596, 2596,
-     2596,  378,  379,  380,  381,  382,  383, 2596, 1515, 2596,
-     2596, 2596, 2596, 2596, 1856, 2596, 2596, 2596, 2596, 1520,
-     2596, 2596, 2596, 1516, 2596, 1857, 2596, 2596, 2596,  378,
-      379,  380,  381,  382,  383, 1521,  378,  379,  380,  381,
-      382,  383,  378,  379,  380,  381,  382,  383, 1520, 2596,
-     2596, 2596, 2596, 1522, 1526,  465,  465,  465,  465,  465,
-      465,  465,  465, 2596, 1521, 1858, 1527, 2596,  378,  379,
-
-     1519,  381,  382,  383, 2596, 2596,  378,  379,  380,  381,
-      382,  383, 1522, 2596, 2596, 2596,  378,  379,  380,  381,
-      382,  383, 1523, 2596, 1858, 1527, 2596, 2596, 2596,  378,
-      379,  380,  381,  382,  383, 2596, 2596, 2596,  378,  379,
-      380,  381,  382,  383,  378,  379,  380,  381,  382,  383,
-     1859, 1523, 2596, 2596, 2596, 1860, 1861, 2596, 2596, 2596,
-     2596, 1866, 2596, 1870, 2596, 2596, 2596, 2596,  378,  379,
-      380,  381,  382,  383, 2596, 2596, 2596, 2596, 2596, 1859,
-     2596, 2596, 2596, 1530, 1860, 1861, 2596, 2596, 2596, 2596,
-     1866, 1529, 1870, 1528, 2596, 2596, 2596, 2596, 2596, 2596,
-
-     1886,  378,  379,  380,  381,  382,  383, 1531, 1887, 1532,
-     1533, 2596, 1530, 2596,  378,  379,  380,  381,  382,  383,
-     1529, 2596, 1528,  378,  379,  380,  381,  382,  383, 1886,
-     1889, 1534, 2596, 2596, 2596, 2596, 1531, 1887, 1532, 1533,
-      378,  379,  380,  381,  382,  383,  378,  379,  380,  381,
-      382,  383,  378,  379,  380,  381,  382,  383, 2596, 1889,
-     1534, 2596,  378,  379,  380,  381,  382,  383,  378,  379,
-      380,  381,  382,  383,  378,  379,  380,  381,  382,  383,
-     2596, 2596,  378,  379,  380,  381,  382,  383, 2596, 2596,
-     2596, 1186,  906,  906,  906,  906,  906,  906,  906,  906,
-
-     1557,  465,  465,  465,  465,  465,  465,  465,  465, 2596,
-     2596, 2596, 1604, 2596, 1713, 2596, 1906, 1907, 1915, 1920,
-      378,  379,  380,  381,  382,  383, 2596, 1921, 2596, 1922,
-     1535, 1463, 1463, 1463, 2596, 2596, 1605, 1928, 1930, 1558,
-     2596, 2596, 2596, 1713, 1465, 1906, 1907, 1915, 1920, 2596,
-      658,  659,  660,  661,  662,  663, 1921, 1606, 1922, 1535,
-      472,  473,  474,  475,  476,  477, 1928, 1930, 1558, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596,  378,  379,  380,  381,
-      382,  383, 1391, 1391, 1391, 2596, 1606, 2596, 2596, 2596,
-     2596, 2596, 2596, 1933, 2596, 2596, 2596,  378,  379,  380,
-
-      381,  382,  383, 2596, 2596, 2596, 1934, 1545, 1546, 1547,
-     1548, 1549, 1559, 1550, 1560, 1551, 2596, 2596, 2596, 1935,
-     1552, 1607, 1933, 1553, 1554, 1936, 1561, 1555,  378,  379,
-      380,  381,  382,  383, 2596, 1934, 1545, 1546, 1547, 1548,
-     1549, 1559, 1550, 1560, 1551, 2596, 2596, 2596, 1935, 1552,
-     2596, 2596, 1553, 1554, 1936, 1561, 1555, 2596, 2596,  378,
-      379,  380,  381,  382,  383, 2596, 2596, 2596, 1562, 1911,
-     1911, 1911, 1556, 2596, 2596, 2596,  378,  379,  380,  381,
-      382,  383,  378,  379,  380,  381,  382,  383, 2596, 2596,
-     2596,  378,  379,  380,  381,  382,  383, 1562, 2596, 1912,
-
-     1563, 2596, 2596, 2596,  378,  379,  380,  381,  382,  383,
-     2596, 2596, 2596, 1582, 1937, 1564, 2596, 2596, 2596, 1938,
-     1939, 1940, 2596, 2596, 2596, 1941, 1942, 1565, 1912, 1563,
-     2596, 2596, 2596,  378,  379,  380,  381,  382,  383, 2596,
-     2596, 2596, 1582, 1937, 1564, 1943, 1567, 2596, 1938, 1939,
-     1940, 2596, 2596, 2596, 1941, 1942, 1565, 1566, 2596, 1913,
-     2596,  378,  379,  380,  381,  382,  383, 1571,  545,  546,
-      547,  548,  549,  550, 1943, 1567,  378,  379,  380,  381,
-      382,  383, 2596, 2596, 2596, 2596, 1566, 1568, 2596,  378,
-      379,  380,  381,  382,  383, 1569, 1571, 1572,  378,  379,
-
-      380,  381,  382,  383,  378,  379,  380,  381,  382,  383,
-      378,  379,  380,  381,  382,  383, 1568,  501,  378,  379,
-      380,  381,  382,  383, 1569, 2596, 1572, 2596, 2596,  501,
-      472,  473,  474,  475,  476,  477,  501, 1944, 1945,  378,
-      379,  380,  381,  382,  383, 1573, 1574,  472,  473,  474,
-      475,  476,  477,  501, 1931, 1576,  472,  473,  474,  475,
-      476,  477,  501, 2596, 2596, 2596, 1944, 1945,  501, 2596,
-     1603, 1946, 1932, 1949, 1573, 1574,  501, 2596, 2596, 2596,
-     1577, 2596, 2596, 1931, 1576, 2596, 2596, 1950, 1580, 1578,
-     1951,  508,  509,  514,  511,  512,  513,  501, 1581, 1603,
-
-     1946, 1932, 1949,  508,  509,  514,  511,  512,  513, 1577,
-      508,  509,  514,  511,  512,  513, 1950, 1580, 2596, 1951,
-     1579,  658,  659,  660,  661,  662,  663,  508,  509,  514,
-      511,  512,  513, 2596, 2596, 2596,  508,  509,  514,  511,
-      512,  513,  508,  509,  514,  511,  512,  513, 2596, 1579,
-      508,  509,  514,  511,  512,  513, 1621,  674,  674,  674,
-      674,  674,  674,  674,  674,  378,  379,  380,  381,  382,
-      383,  508,  509,  514,  511,  512,  513, 1608, 1609, 1463,
-     1463, 1608, 1608, 1610, 1611, 1608, 1608, 1608, 1608, 1608,
-     1608, 1612, 1608, 1608, 1611, 1611, 1608, 1608, 1608, 1608,
-
-     1608, 1611, 1611, 1611, 1613, 1611, 1611, 1611, 1611, 1611,
-     1611, 1611, 1611, 1611, 1611, 1611, 1611, 1611, 1611, 1611,
-     1611, 1611, 1611, 1611, 1611, 1611, 1611, 1608, 1611, 1608,
-     1611, 1611, 1611, 1613, 1611, 1611, 1611, 1611, 1611, 1611,
-     1611, 1611, 1611, 1611, 1611, 1611, 1611, 1611, 1611, 1611,
-     1611, 1611, 1611, 1611, 1611, 1611, 1608, 1608, 1608, 1608,
-     1608, 1608, 1608, 1608, 1608, 1608, 1614, 1615, 1616, 1617,
-     1618, 1619, 1622, 1964, 1965, 1623, 2596, 2596, 2596, 1626,
-      658,  659,  660,  661,  662,  663, 2596, 1624,  745,  746,
-      747,  748,  749,  750, 1627,  745,  746,  747,  748,  749,
-
-      750, 1622, 1964, 1965, 1623, 1636,  465,  465,  465,  465,
-      465,  465,  465,  465, 2596, 1628, 1624,  699,  700,  701,
-      702,  703,  704, 1627, 2596, 2596,  658,  659,  660,  661,
-      662,  663,  658,  659,  660,  661,  662,  663,  658,  659,
-      660,  661,  662,  663, 1628, 1631, 1966, 1968, 1632, 1969,
-     1970,  699,  700,  701,  702,  703,  704, 1633, 2596, 2596,
-     2596, 1971, 1975, 1983, 2596,  501,  699,  700,  701,  702,
-      703,  704, 2596, 2596, 1631, 1966, 1968, 1632, 1969, 1970,
-     2596, 2596, 2596, 2596, 2596, 1637, 1633, 2596, 2596, 2596,
-     1971, 1975, 1983, 2596, 2596, 2596,  745,  746,  747,  748,
-
-      749,  750,  745,  746,  747,  748,  749,  750,  745,  746,
-      747,  748,  749,  750, 1637, 2596, 1996, 2596, 2596, 2596,
-     2596, 2596, 2596, 1638, 2596, 2596, 2596, 1997, 1999, 1639,
-     2596, 2596, 2596, 2014, 2015, 2020, 2596, 2596, 2596,  508,
-      509,  514,  511,  512,  513, 1996,  378,  379,  380,  381,
-      382,  383, 1638, 2596, 2596, 2596, 1997, 1999, 1639, 1640,
-     2022, 1642, 2014, 2015, 2020, 2027, 1641, 2596,  378,  379,
-      380,  381,  382,  383, 2596,  378,  379,  380,  381,  382,
-      383,  378,  379,  380,  381,  382,  383, 2596, 1640, 2022,
-     1642, 2596, 2596, 2596, 2027, 1641, 1357,  906,  906,  906,
-
-      906,  906,  906,  906,  906,  378,  379,  380,  381,  382,
-      383, 2028,  378,  379,  380,  381,  382,  383,  378,  379,
-      380,  381,  382,  383,  378,  379,  380,  381,  382,  383,
-     2596, 2596, 2596, 2596, 2029, 2596, 2596, 2596, 2596, 1947,
-     2028, 2034, 2035, 1645, 1645, 1645, 2596, 2596, 2036, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 2037, 1643, 1646, 2038,
-     1948, 2039, 1644, 2029, 2596, 2596, 2596, 2040, 1947, 2596,
-     2034, 2035, 2596, 1648, 2596, 2596, 2596, 2036, 2596,  378,
-      379,  380,  381,  382,  383, 2037, 1643, 1651, 2038, 1948,
-     2039, 1644, 2596, 2596, 2596, 2596, 2040, 2596, 2596, 2596,
-
-     2596, 1649, 1648, 2596, 2596, 2596, 2596, 2596, 2596, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 1651, 2596,  378,  379,
-      380,  381,  382,  383,  378,  379,  380,  381,  382,  383,
-     1649,  378,  379, 1647,  381,  382,  383,  378,  379,  380,
-      381,  382,  383, 1650, 2596, 2596, 2596, 2043, 2044, 1653,
-     2596, 2596,  378,  379,  380,  381,  382,  383, 2596, 2596,
-     2596, 2596,  378,  379,  380,  381,  382,  383, 2596, 2596,
-     2596, 2596, 1650, 2596, 2596, 2596, 2043, 2044, 1653, 1655,
-     1655, 1655, 2045, 2046, 1652,  378,  379,  380,  381,  382,
-      383, 2596, 2596, 2596, 1656,  378,  379,  380,  381,  382,
-
-      383,  378,  379,  380,  381,  382,  383, 2596, 2596, 1654,
-     2596, 2045, 2046, 1652, 2596, 2596, 2596, 1665,  465,  465,
-      465,  465,  465,  465,  465,  465, 2047, 1661, 2596, 2596,
-     2596, 2596,  378,  379,  380,  381,  382,  383, 1654, 2596,
-     2596, 2596, 2596, 2596, 1758, 1662,  378,  379,  380,  381,
-      382,  383, 2596, 2596, 2596, 2047, 1661,  378,  379,  380,
-      381,  382,  383, 1667, 2596, 2596, 2596,  378,  379, 1657,
-      381,  382,  383, 1758, 1662, 2596, 2596, 2596, 2596,  378,
-      379,  380,  381,  382,  383, 2596, 2596, 2596, 2596, 2596,
-     2596, 2596, 1667, 2596, 1666, 1668,  658,  659,  660,  661,
-
-      662,  663,  378,  379,  380,  381,  382,  383, 1368,  906,
-      906,  906,  906,  906,  906,  906,  906,  378,  379,  380,
-      381,  382,  383, 1666, 1668, 2596, 2596,  378,  379,  380,
-      381,  382,  383, 2596, 2596, 2596, 2596, 2596, 2596, 2596,
-      378,  379,  380,  381,  382,  383, 2596, 2596, 2596, 2596,
-     2596, 2596,  378,  379,  380,  381,  382,  383, 2596, 2596,
-     1671, 2048, 2049,  378,  379,  380,  381,  382,  383, 2596,
-     2596, 2596, 2596, 2596, 2050, 2053, 1672,  378,  379,  380,
-      381,  382,  383, 2054, 2596, 2596, 2596, 2596, 2596, 1671,
-     2048, 2049, 2596, 2596, 2596, 2596, 2596, 2596, 1673, 2596,
-
-     2596, 2596, 2596, 2050, 2053, 1672, 2596, 2596, 2596, 2596,
-     2596, 1674, 2054, 1677, 1677, 1677, 2596, 2596, 2055, 1675,
-     2596,  378,  379,  380,  381,  382,  383, 1673, 1678, 2596,
-     2596, 2596, 2596, 2596,  378,  379,  380,  381,  382,  383,
-     1674, 2596, 1676, 1704, 2596, 2596, 2596, 2055, 1675, 1391,
-      906,  906,  906,  906,  906,  906,  906,  906, 2596,  378,
-      379,  380,  381,  382,  383, 2596, 2596, 2596, 2596, 2596,
-     2596, 1676, 1704, 2596,  378,  379,  380,  381,  382,  383,
-      378,  379,  380,  381,  382,  383, 2596,  378,  379,  380,
-      381,  382,  383, 2596,  378,  379,  380,  381,  382,  383,
-
-     1759,  378,  379, 1679,  381,  382,  383, 2596, 2596, 2596,
-     1706,  501, 2596, 2596, 2596, 2596, 2596,  378,  379,  380,
-      381,  382,  383, 2596, 2596, 1707, 1707, 1707, 2596, 1759,
-     2596, 2596,  378,  379,  380,  381,  382,  383, 1705, 1706,
-     1708, 2596, 2596, 2596, 2596,  658,  659,  660,  661,  662,
-      663, 2596, 2596, 2596, 2056, 2057,  378,  379,  380,  381,
-      382,  383, 2596, 2596, 2596, 2596, 2596, 1705,  545,  546,
-      547,  548,  549,  550, 2596, 2596, 2596, 2596, 1710, 1645,
-     1645, 1645,  501, 2056, 2057,  508,  509,  514,  511,  512,
-      513, 1712, 2058, 1716, 1646,  378,  379,  380,  381,  382,
-
-      383,  378,  379,  380,  381,  382,  383, 1710, 1711, 1655,
-     1655, 1655, 2596,  378,  379, 1709,  381,  382,  383, 1714,
-     1712, 2058, 1716, 2596, 1656, 2596, 2596, 2596, 2596,  378,
-      379,  380,  381,  382,  383, 2596,  501, 1711, 2596,  378,
-      379,  380,  381,  382,  383, 2596, 2596, 2596, 1714, 1715,
-      378,  379,  380,  381,  382,  383,  508,  509,  514,  511,
-      512,  513,  378,  379,  380,  381,  382,  383,  501, 1773,
-      472,  473,  474,  475,  476,  477,  501, 1721, 1715, 1740,
-     2059, 2596,  501, 1463, 1035, 1035, 1035, 1035, 1035, 1035,
-     1035, 1035, 2070, 1717, 2071, 1718, 2072, 2073, 2596, 1781,
-
-     2596, 2596,  501, 2596, 2596, 2074, 1721, 1723, 1740, 2059,
-      508,  509,  514,  511,  512,  513,  501, 2596, 2596, 1722,
-     2075, 2070, 1717, 2071, 1718, 2072, 2073,  658,  659,  660,
-      661,  662,  663, 1719, 2074, 2076, 1723, 2093, 1720, 2596,
-     2596, 2596,  508,  509,  514,  511,  512,  513, 1722, 2075,
-      508,  509,  514,  511,  512,  513,  508,  509,  514,  511,
-      512,  513, 1719, 2596, 2076, 2596, 2093, 1720,  545,  546,
-      547,  548,  549,  550, 1739, 2098,  508,  509,  514,  511,
-      512,  513, 2596, 1609, 1463, 1463, 2101, 2596, 1741, 2106,
-      508,  509,  514,  511,  512,  513, 1612, 1609, 1463, 1463,
-
-     2596, 2596, 1741, 1739, 2098, 1760, 2108, 1761, 2596, 1742,
-     1612, 1609, 1463, 1463, 2596, 2101, 1741, 2596, 2106, 2109,
-     1609, 1463, 1463, 1742, 1612, 1741, 2596,  658,  659,  660,
-      661,  662,  663, 1746, 1760, 2108, 1761, 1742, 1742, 2596,
-     2596, 1765, 2113, 1762, 2596, 2118, 1742, 2119, 2109, 2120,
-     1766, 2596, 1742,  699,  700,  701,  702,  703,  704,  699,
-      700,  701,  702,  703,  704, 2596, 1742, 2596, 2596, 2596,
-     1765, 2113, 1762, 1743, 2118, 1742, 2119, 2596, 2120, 1766,
-     2596, 2596, 2596, 2596, 2596, 2123, 1837, 1743,  699,  700,
-      701,  702,  703,  704,  745,  746,  747,  748,  749,  750,
-
-     2596, 1743,  745,  746,  747,  748,  749,  750, 2596, 2596,
-     1743, 1609, 1463, 1463, 2123, 1837, 1741, 2596, 2596, 2004,
-     2004, 2004, 1769, 2596, 1612, 1486,  906,  906,  906,  906,
-      906,  906,  906,  906, 2596, 2596, 2596, 1742,  472,  473,
-      474,  475,  476,  477, 2596, 2596, 2596, 2596, 2125, 2005,
-     2596, 1769, 2596, 2596, 2596,  378,  379,  380,  381,  382,
-      383, 2596, 2596, 2596, 2596, 2596, 1742, 2596,  378,  379,
-      380,  381,  382,  383, 2596, 2596, 1770, 2125, 2005, 1771,
-     2596, 2596, 2596, 2126, 1772, 2127, 2596, 2596, 2596, 2128,
-     1611, 1611, 1611, 1611, 1611, 1611, 1611, 1611, 1611, 2596,
-
-     2129, 1743, 1609, 1463, 1463, 1770, 2596, 1741, 1771, 2006,
-     2130, 2596, 2126, 1772, 2127, 1612, 2596, 2596, 2128, 2596,
-     2596, 2596,  378,  379,  380,  381,  382,  383, 1742, 2129,
-     2596, 2596, 2596,  378,  379,  380,  381,  382,  383, 2130,
-      378,  379,  380,  381,  382,  383, 2596, 2596, 2596,  378,
-      379,  380,  381,  382,  383, 2596, 2596, 1742, 1775,  465,
-      465,  465,  465,  465,  465,  465,  465, 2131,  378,  379,
-      380,  381,  382,  383,  378,  379,  380,  381,  382,  383,
-     2596, 1748, 1748, 1748, 1748, 1748, 1748, 1748, 1748, 1748,
-     2596, 2596, 1743, 1609, 1463, 1463, 2131, 2596, 1741, 2596,
-
-     2596, 2596, 2596, 2596, 2596, 2596, 1612,  378,  379,  380,
-      381,  382,  383, 2596, 2596, 2596, 2596, 2596, 2596, 1742,
-     1783,  465,  465,  465,  465,  465,  465,  465,  465, 1776,
-     2596, 2596, 2596, 2133,  378,  379,  380,  381,  382,  383,
-     1777, 2596, 2596, 2596, 2596, 2041, 2041, 2041, 1742, 1517,
-      906,  906,  906,  906,  906,  906,  906,  906, 1776, 2596,
-     2596, 2596, 2133, 2596, 2596, 2596, 2596, 1778, 2596, 1777,
-     2596, 2596, 1749, 1750, 1750, 1750, 1750, 1750, 1750, 1750,
-     1750, 2596, 1779, 1743, 1609, 1463, 1463, 2596, 2596, 1741,
-      378,  379,  380,  381,  382,  383, 1778, 1612, 2134, 1707,
-
-     1707, 1707, 2596,  378,  379,  380,  381,  382,  383, 2596,
-     1742, 1779, 2135, 2136, 1708, 2596, 2596, 2596,  378,  379,
-      380,  381,  382,  383, 2596, 2596, 2596, 2134, 2596,  378,
-      379,  380,  381,  382,  383, 2042, 2596, 2596, 2596, 1742,
-     2596, 2135, 2136, 2596, 2596, 2596, 2596,  378,  379,  380,
-      381,  382,  383, 2137, 2138, 1780, 1786, 2596, 2596, 2596,
-     2596, 2139, 2140, 1751, 1751, 1751, 1751, 1751, 1751, 1751,
-     1751, 1751, 2596, 1787, 1743, 1609, 1463, 1463, 2596, 2596,
-     1741, 2596, 2137, 2138, 1780, 1786, 2596, 2596, 1612, 1831,
-     2139, 2140, 2145, 2146, 1792, 2596, 2596, 2596, 2596, 2596,
-
-     2596, 1742, 1787,  378,  379,  380,  381,  382,  383, 2596,
-     2596, 2596,  378,  379,  380,  381,  382,  383, 2596, 2596,
-     2596, 2145, 2146, 1792,  378,  379,  380,  381,  382,  383,
-     1742,  378,  379,  380,  381,  382,  383, 1794, 1794, 1794,
-     2147, 2156, 2596, 2596, 2596,  378,  379,  380,  381,  382,
-      383, 1797, 1795, 2157, 1752, 1752, 1752, 1752, 1752, 1752,
-     1752, 1753, 1754, 2596, 2158, 1743, 1609, 1463, 1463, 2147,
-     2156, 1741, 2596, 2596, 2596, 2596, 1794, 1794, 1794, 1612,
-     1797, 2596, 2157,  378,  379,  380,  381,  382,  383, 2596,
-     2162, 1795, 1742, 2158, 2167, 2168, 2596,  378,  379,  380,
-
-      381,  382,  383, 2596, 2596, 2596,  378,  379,  380,  381,
-      382,  383, 2169, 2596, 2170, 2176, 1677, 1677, 1677, 2162,
-     2596, 1742, 2596, 2167, 2168,  378,  379, 1796,  381,  382,
-      383, 1678, 2596, 2596, 2596, 2596, 2596, 2596, 1799, 1798,
-     2184, 2169, 1800, 2170, 2176, 1755, 1755, 1755, 1755, 1755,
-     1755, 1755, 1755, 1755, 1801, 2596, 1743, 2596, 2596, 2596,
-      378,  379,  380,  381,  382,  383, 1916, 2596, 1798, 2184,
-     2596, 1800, 1804,  465,  465,  465,  465,  465,  465,  465,
-      465, 2596, 2596, 1801, 2596, 2596, 2596, 1881, 2018, 2018,
-     2018,  378,  379,  380,  381,  382,  383, 2596, 2596, 1828,
-
-     2596, 2596, 2596, 1518, 1836,  501, 1802, 1833,  465,  465,
-      465,  465,  465,  465,  465,  465, 1881, 2596, 2596, 2596,
-      378,  379,  380,  381,  382,  383, 1829, 1830, 1828, 2596,
-     2596, 2596, 2596, 1836,  658,  659,  660,  661,  662,  663,
-     2596, 1839, 2195, 2596, 2596,  378,  379,  380,  381,  382,
-      383, 2596, 2596, 2596, 2596, 1829, 1830, 1834, 1835,  501,
-     2596,  472,  473,  474,  475,  476,  477,  501, 2011, 2011,
-     2011, 2195,  378,  379,  380,  381,  382,  383, 2019,  508,
-      509,  514,  511,  512,  513, 1838, 1834, 1835,  378,  379,
-      380,  381,  382,  383, 2596, 1911, 1911, 1911, 2012,  501,
-
-     1841, 2596, 2198, 2199, 2596,  378,  379,  380,  381,  382,
-      383, 1840,  501, 2596, 1838, 2596, 2596, 2596,  378,  379,
-      380,  381,  382,  383, 1842, 1912, 1862, 2012, 2596, 1841,
-      501, 2198, 2199,  508,  509,  514,  511,  512,  513, 1843,
-     1840,  508,  509,  514,  511,  512,  513, 2596, 2596, 2596,
-     2596,  501, 2596, 1842, 1912, 1862, 2596,  501, 2013, 2218,
-     2218, 2218, 2596, 1844, 2200, 2203, 1863, 2206, 1843, 1845,
-     1846, 2208, 2209,  508,  509,  514,  511,  512,  513,  658,
-      659,  660,  661,  662,  663, 1913,  508,  509,  514,  511,
-      512,  513, 1844, 2200, 2203, 1863, 2206, 2596, 1845, 1846,
-
-     2208, 2209, 2596, 2596,  508,  509,  514,  511,  512,  513,
-     2596,  545,  546,  547,  548,  549,  550,  658,  659,  660,
-      661,  662,  663, 2596, 2596,  508,  509,  514,  511,  512,
-      513,  508,  509,  514,  511,  512,  513, 1609, 1463, 1463,
-     2596, 2210, 1741, 1609, 1463, 1463, 2596, 2596, 1741, 2219,
-     1612, 2212, 1609, 1463, 1463, 1992, 1612, 1741, 2596, 1867,
-     1868, 1868, 2596, 1742, 1741, 1612, 1882, 2596, 2213, 1742,
-     2210, 2596, 1746, 2596, 1609, 1463, 1463, 2596, 1742, 1741,
-     2212, 2192, 2596, 2596, 1992, 1742, 1864, 1612, 2596, 2596,
-     2596, 2596, 1742, 2596, 2596, 1882, 2193, 2213, 1742, 2214,
-
-     1742,  658,  659,  660,  661,  662,  663, 1742, 2596, 2596,
-     2192, 1875, 1868, 1868, 1742, 1864, 1876, 1883,  658,  659,
-      660,  661,  662,  663, 1877, 2193, 2596, 1743, 2214, 1742,
-     2596, 1865, 2596, 1743, 2596, 2596, 1884, 1878, 1885, 2596,
-     2596, 2596, 1743, 2596, 2596, 2215, 1883, 2596, 2596, 1869,
-     1609, 1463, 1463, 1872, 1872, 1741, 2596, 1872, 2596, 1872,
-     1872, 1872, 2596, 1612, 1743, 1884, 1878, 1885,  699,  700,
-      701,  702,  703,  704, 2215, 2216, 1742,  378,  379,  380,
-      381,  382,  383,  699,  700,  701,  702,  703,  704, 2596,
-      699,  700,  701,  702,  703,  704, 2596, 2596, 2596, 2217,
-
-     2596, 1879, 2596, 2596, 2216, 1742, 2596, 2094, 2094, 2094,
-     2596, 2596, 2596, 2596, 2596, 1888, 2223, 2596, 2596, 2596,
-     2596, 2095, 2596, 1890, 2596, 2596, 2596, 2596, 2217, 1611,
-     1611, 1611, 1611, 1611, 1611, 1611, 1611, 1611, 2596, 2596,
-     1743, 1609, 1463, 1463, 1888, 2223, 1741, 1891, 2225, 2099,
-     2099, 2099, 1890, 1892, 1612, 1645,  906,  906,  906,  906,
-      906,  906,  906,  906, 1646, 2228, 1893, 1742,  745,  746,
-      747,  748,  749,  750,  501, 2229, 1891, 2225, 2596, 2596,
-     2596, 2596, 1892, 2596,  378,  379,  380,  381,  382,  383,
-     2596, 2596, 2596, 2596, 2228, 1893, 1742, 2096,  378,  379,
-
-      380,  381,  382,  383, 2229,  378,  379,  380,  381,  382,
-      383, 1898,  378,  379,  380,  381,  382,  383, 1690, 2596,
-     1609, 1871, 1871, 1871, 1871, 1871, 1871, 1871, 1871, 2596,
-     1694, 1743, 1609, 1463, 1463, 1899, 2230, 1741, 2596, 2100,
-     1898, 2596, 2596, 2596, 2596, 1612, 2596, 1690,  508,  509,
-      514,  511,  512,  513, 2596, 2596, 2596, 2596, 1742, 1694,
-     2231, 2232, 2596, 2596, 1899, 2230,  378,  379,  380,  381,
-      382,  383, 2596, 2104, 2104, 2104, 1900, 2233,  378,  379,
-      380,  381,  382,  383, 2596, 2596, 2596, 1742, 1656, 2231,
-     2232, 1901, 1655,  906,  906,  906,  906,  906,  906,  906,
-
-      906, 2596, 2596, 2596, 2596, 1900, 2233, 2596, 2596, 2596,
-     2596, 1871, 1871, 1871, 1871, 1871, 1871, 1871, 1871, 1871,
-     1901, 2596, 1743, 1609, 1463, 1463, 2596, 2596, 1741,  378,
-      379,  380,  381,  382,  383, 1908, 1612, 2236, 2596, 2596,
-     2596, 1909,  378,  379,  380,  381,  382,  383, 2596, 1742,
-     1918,  465,  465,  465,  465,  465,  465,  465,  465, 2596,
-     2596, 2596, 2596, 2105, 1908, 2596, 2236, 2596, 2596, 2596,
-     1909, 2596,  378,  379,  380,  381,  382,  383, 1742, 2596,
-     2220, 2220, 2220, 2596, 2596, 2596, 2596, 2596, 1958,  378,
-      379,  380,  381,  382,  383, 1914,  378,  379,  380,  381,
-
-      382,  383, 1611, 1611, 1611, 1611, 1611, 1611, 1611, 1611,
-     1611, 2596, 2596, 1743, 1609, 1463, 1463, 1958, 2596, 1741,
-     2596, 2226, 2226, 2226, 1914, 1919, 2596, 1612, 1677,  906,
-      906,  906,  906,  906,  906,  906,  906, 2596, 2596, 2596,
-     1742,  472,  473,  474,  475,  476,  477,  378,  379,  380,
-      381,  382,  383, 2596, 1919,  378,  379,  380,  381,  382,
-      383, 2596, 2596, 2596, 2596, 2185, 2185, 2185, 2596, 1742,
-     2221,  378,  379,  380,  381,  382,  383, 1707,  906,  906,
-      906,  906,  906,  906,  906,  906, 2596, 2237, 2186, 2596,
-     2596, 2596, 1952, 1872, 1872, 1872, 1872, 1872, 1872, 1872,
-
-     1872, 1872, 2596, 2238, 1743, 1609, 1463, 1463, 2596, 2596,
-     1741, 2227, 2234, 2244, 1959, 2235, 2237, 2186, 1612, 2245,
-     2596, 1952, 2596, 2596, 2596,  378,  379,  380,  381,  382,
-      383, 1742, 2238, 2596, 2596, 2596, 2596, 2596,  501, 2246,
-     2247, 2234, 2244, 1959, 2235, 2596, 2249, 2596, 2245,  378,
-      379,  380,  381,  382,  383, 2187,  501, 2018, 2018, 2018,
-     1742,  472,  473,  474,  475,  476,  477,  501, 2246, 2247,
-     2253, 2254, 1518, 1961, 1960, 2249, 1957,  378,  379,  380,
-      381,  382,  383,  501, 1872, 1872, 1872, 1872, 1872, 1872,
-     1872, 1872, 1872, 2596, 2596, 1743, 1609, 1463, 1463, 2253,
-
-     2254, 1741, 1961, 2596, 2596, 1957, 2596, 2596, 2255, 1612,
-     2596, 2239,  508,  509,  514,  511,  512,  513,  501, 2256,
-     2257, 2240, 1742,  378,  379,  380,  381,  382,  383,  501,
-      508,  509,  514,  511,  512,  513,  501, 2255, 2596, 1962,
-     2239,  508,  509,  514,  511,  512,  513, 2019, 2256, 2257,
-     2240, 1742, 2121, 2121, 2121, 2259, 2268,  508,  509,  514,
-      511,  512,  513, 2596, 2596, 2596, 2596, 1678, 1962, 1972,
-     2269, 2276, 2277, 1973, 2596, 1873, 1873, 1873, 1873, 1873,
-     1873, 1873, 1873, 1873, 2259, 2268, 1743, 2596, 2596, 2177,
-     2177, 2177,  508,  509,  514,  511,  512,  513, 1972, 2269,
-
-     2276, 2277, 1973,  508,  509,  514,  511,  512,  513, 2178,
-      508,  509,  514,  511,  512,  513,  658,  659,  660,  661,
-      662,  663, 2596, 2031, 2031, 2031,  658,  659,  660,  661,
-      662,  663, 1609, 1463, 1463, 2596, 2596, 1741, 1609, 1463,
-     1463, 2596, 2122, 1741, 2596, 1612, 2596, 1977, 1868, 1868,
-     2596, 1612, 1978, 2032, 2278, 1974, 2280, 2281, 1742, 2596,
-     1979, 2282, 2596, 2287, 1742, 1875, 1868, 1868, 2596, 2288,
-     1876, 2596, 2596, 1980, 2289, 1609, 1463, 1463, 1877, 2260,
-     1741, 2596, 2032, 2278, 1974, 2280, 2281, 1742, 1612, 2596,
-     2282, 1878, 2287, 1742, 2291, 1984, 1463, 1463, 2288, 2596,
-
-     1876, 1742, 1980, 2289, 2596, 1875, 1868, 1868, 1877, 2596,
-     1876, 2596, 2596, 2033, 1986, 1463, 1463, 1609, 1877, 1978,
-     1878, 1878, 1743, 2291, 2160, 2160, 2160, 1979, 1743, 2292,
-     1742, 1878, 2293, 1984, 1463, 1463, 2596, 1981, 1876, 1708,
-     1980, 2261, 2261, 2261, 2596, 2596, 1988, 1991, 2596, 2294,
-     1878, 1984, 1463, 1463, 1982, 1879, 1876, 2262, 2292, 1878,
-     1878, 2293, 2596, 2596, 1877, 1743, 1609, 1463, 1463, 1980,
-     2296, 1741, 1994, 2077, 2077, 2077, 1991, 1878, 2294, 1612,
-     2596, 2596, 2596, 2596, 2596, 1985, 2596, 2078, 1878, 1984,
-     1463, 1463, 1742, 2299, 1876, 1879, 2596, 2302, 2305, 2296,
-
-     2307, 1994, 1877, 2596, 1987, 2596, 1878, 2596,  658,  659,
-      660,  661,  662,  663, 2161, 1878, 2596, 2596, 2284, 2284,
-     2284, 1742, 2299, 1985, 2596, 1993, 2302, 2305, 1998, 2307,
-     1990, 2263, 1989,  699,  700,  701,  702,  703,  704, 2596,
-     2596, 1985, 2596, 2596, 1878, 1611, 1611, 1611, 1611, 1611,
-     1611, 1611, 1611, 1611, 1993, 1995, 1743, 1998, 2596, 2596,
-     2596, 1989, 2596, 2079, 2596, 2596, 2596, 2596,  699,  700,
-      701,  702,  703,  704, 2596, 2596, 2596, 2596, 2596, 1985,
-     2596, 2596, 2596, 2596, 1995,  745,  746,  747,  748,  749,
-      750, 2596, 2596, 2596,  658,  659,  660,  661,  662,  663,
-
-     2000,  699,  700,  701,  702,  703,  704, 2002, 2285, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 2001, 2596, 2596, 2596,
-     1794,  906,  906,  906,  906,  906,  906,  906,  906, 2000,
-     2596, 2308, 2596, 2596, 2596, 2596, 2002, 2218, 2218, 2218,
-     2596, 2596, 2596, 2596, 2596, 2001,  378,  379,  380,  381,
-      382,  383,  378,  379,  380,  381,  382,  383, 2007, 2008,
-     2308, 2596,  378,  379,  380,  381,  382,  383,  378,  379,
-      380,  381,  382,  383, 2596, 2596, 2596, 2596, 2596,  378,
-      379,  380,  381,  382,  383, 2596, 2596, 2007, 2008, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596,  378,  379,
-
-      380,  381,  382,  383, 2596,  378,  379,  380,  381,  382,
-      383, 2062, 2062, 2062, 2009, 2596, 2596, 2596, 2596, 2596,
-      378,  379,  380,  381,  382,  383, 2017, 2219, 2065, 2016,
-      378,  379,  380,  381,  382,  383, 2596, 2596, 2596, 2596,
-     2596, 2063,  501, 2009,  699,  700,  701,  702,  703,  704,
-     2596, 2596, 2189, 2189, 2189, 2017,  501, 2065, 2016, 2596,
-     2596, 2596,  378,  379,  380,  381,  382,  383, 2068, 2067,
-     2063, 2309, 2190, 2060, 2220, 2220, 2220,  378,  379,  380,
-      381,  382,  383,  378,  379,  380,  381,  382,  383,  472,
-      473,  474,  475,  476,  477, 2596, 2596, 2068, 2067,  501,
-
-     2309, 2064, 2060,  378,  379,  380,  381,  382,  383, 2066,
-     2081, 2310, 2069, 2004, 2004, 2004,  508,  509,  514,  511,
-      512,  513, 2596, 2596,  378,  379,  380,  381,  382,  383,
-      508,  509,  514,  511,  512,  513, 2082, 2596, 2066, 2081,
-     2310, 2069, 2271, 2005, 2596, 2596, 2596,  378,  379,  380,
-      381,  382,  383, 2311, 2596, 2596,  658,  659,  660,  661,
-      662,  663, 2596, 2312, 2221, 2082,  472,  473,  474,  475,
-      476,  477, 2005,  508,  509,  514,  511,  512,  513, 2596,
-     2596, 2313, 2311,  658,  659,  660,  661,  662,  663, 1609,
-     1463, 1463, 2312, 2314, 1741, 1986, 1463, 1463, 2596, 2596,
-
-     1978, 2596, 1612, 2006, 1977, 1868, 1868, 2596, 1979, 1978,
-     2313, 1986, 1463, 1463, 2596, 1742, 1978, 1979, 2596, 2315,
-     2316, 1980, 2314, 2083, 1979, 2596, 2596, 1986, 1463, 1463,
-     1980, 2596, 1978, 2317, 1986, 1463, 1463, 1980, 2596, 1978,
-     2084, 1986, 1463, 1463, 1742, 2318, 1978, 1979, 2315, 2316,
-     1980, 2319, 2083, 1980, 1979, 2300, 2300, 2300, 2596, 1980,
-     1980, 2320, 2317, 2011, 2011, 2011, 1980, 1980, 2115, 2115,
-     2115, 1609, 1463, 1463, 2318, 2596, 1741, 2085, 2596, 1743,
-     2319, 2596, 1980, 2596, 1612, 1987, 1984, 1463, 1463, 1980,
-     2320, 1876, 2596, 2012, 1981, 2596, 1980, 1742, 2116, 1877,
-
-     2321, 1987, 1984, 1463, 1463, 2596, 2085, 1876, 1986, 1463,
-     1463, 2596, 1878, 1978, 2596, 1877, 2596, 1987, 2596, 2596,
-     2086, 1979, 2012, 2596, 1987, 2596, 1742, 2116, 1878, 2321,
-     2596, 1987, 2596, 2322, 1980, 2596, 2090, 2326, 1986, 1463,
-     1463, 1878, 2596, 1978, 2596, 2301, 2327, 1875, 1868, 1868,
-     1867, 1979, 1876, 2013, 1984, 1463, 1463, 1878, 2117, 1876,
-     1988, 1743, 2322, 1980, 1980, 2090, 2326, 1877, 2329, 1984,
-     1463, 1463, 2596, 1878, 1876, 2327, 1985, 2089, 2596, 2334,
-     1878, 2087, 1877, 2091,  658,  659,  660,  661,  662,  663,
-     2092, 2596, 1985, 1980, 2337, 1878, 2338, 2329, 1987, 2596,
-
-     2596, 2596, 1878, 2596, 2596, 2596, 2089, 2097, 2334, 1878,
-     2596, 2596, 2091, 2596, 2596, 2596, 2596, 2088, 2596, 2092,
-     2596, 2596, 2596, 2337, 1878, 2338, 2596, 2596, 1987, 2596,
-      699,  700,  701,  702,  703,  704, 2097, 1879,  699,  700,
-      701,  702,  703,  704, 1985, 2596, 2596, 2596, 1875, 2272,
-     2272, 2272,  501,  745,  746,  747,  748,  749,  750, 1985,
-     2596, 2596, 2596, 2596, 2596, 2273, 2031, 2031, 2031, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596,
-     2596,  658,  659,  660,  661,  662,  663,  378,  379,  380,
-      381,  382,  383, 2103, 2343, 2344, 2032, 2596, 2339, 2339,
-
-     2339,  378,  379,  380,  381,  382,  383, 2596,  378,  379,
-      380,  381,  382,  383, 2110,  501, 2596, 2062, 2062, 2062,
-     2111, 2596, 2103, 2343, 2344, 2032,  508,  509,  514,  511,
-      512,  513, 2596,  378,  379,  380,  381,  382,  383, 2274,
-     2596, 2596, 2596, 2110, 2596, 2596, 2596, 2063, 2347, 2111,
-      378,  379,  380,  381,  382,  383, 2033, 2051, 2051, 2051,
-      378,  379,  380,  381,  382,  383,  378,  379,  380,  381,
-      382,  383, 2165, 2348, 2349, 2350, 2063, 2347, 2596, 2358,
-     2159, 2596, 2141, 2361, 2363, 2142, 2364, 2164, 2340,  508,
-      509,  514,  511,  512,  513, 2596, 2094, 2094, 2094, 2143,
-
-     2596, 2165, 2348, 2349, 2350, 2596, 2596, 2064, 2358, 2159,
-     2095, 2141, 2361, 2363, 2142, 2364, 2164, 2365, 2596,  472,
-      473,  474,  475,  476,  477,  501, 2366, 2596, 2143, 2177,
-     2177, 2177,  378,  379,  380,  381,  382,  383,  472,  473,
-      474,  475,  476,  477, 2596, 2367, 2365, 2052, 2148, 2178,
-     2368, 2369, 2370, 2166, 2149, 2171, 2171, 2171, 2150, 2151,
-     2596, 2596, 2596, 2152, 2153, 2154, 2371, 2155,  699,  700,
-      701,  702,  703,  704, 2367, 2596, 2374, 2148, 2172, 2368,
-     2369, 2370, 2166, 2149, 2372, 2373, 2096, 2150, 2151, 2226,
-     2226, 2226, 2152, 2153, 2154, 2371, 2155, 2173, 2596,  508,
-
-      509,  514,  511,  512,  513, 2374, 2596, 2172, 2375, 2596,
-     1609, 1463, 1463, 2372, 2373, 1741, 2596,  658,  659, 2179,
-      661,  662,  663, 1612, 2596, 2596, 2173, 1977, 1868, 1868,
-     2596, 2303, 1978, 1986, 1463, 1463, 1742, 2375, 1978, 2596,
-     2084, 2596, 1986, 1463, 1463, 2174, 1979, 1978, 2596, 1984,
-     1463, 1463, 2596, 1980, 1876, 1979, 2180, 2376, 2596, 1980,
-     2303, 2596, 1877, 2596, 2182, 1742, 2596, 2377, 1980, 2099,
-     2099, 2099, 2104, 2104, 2104, 1878, 1986, 1463, 1463, 2227,
-     2378, 1978, 1980, 2596, 1646, 2180, 2376, 1656, 1980, 1979,
-     1984, 1463, 1463, 2182, 2596, 1876, 2377, 1980, 2379, 2596,
-
-     1743, 2183, 1980, 1877, 1878, 2189, 2189, 2189, 2380, 2378,
-      658,  659,  660,  661,  662,  663, 1878, 1981, 2596, 2596,
-     2596, 1977, 2596, 1987, 2181, 2190, 2596, 2379, 1984, 2596,
-     2183, 1980, 1987, 2596, 2596, 2596, 2596, 2380, 2596, 1985,
-     2596, 2596, 2596, 2385, 2386, 1878, 2596,  699,  700,  701,
-      702,  703,  704, 2181, 2596, 1986, 2204, 2204, 2204, 2100,
-     2196, 2266, 2105, 2121, 2121, 2121, 1987, 2160, 2160, 2160,
-     2596, 1795, 2385, 2386, 2596, 2115, 2115, 2115, 1678, 2596,
-     1985, 2596, 1708, 2201, 2596, 2596, 2596, 2202, 2387, 2196,
-     2250, 2596, 2596,  745,  746, 2191,  748,  749,  750,  658,
-
-      659,  660,  661,  662,  663, 2116,  378,  379,  380,  381,
-      382,  383, 2241, 2251, 2596, 2388, 2202, 2387, 2391, 2250,
-     2242,  378,  379,  380,  381,  382,  383, 2243,  378,  379,
-      380,  381,  382,  383, 2116,  472,  473,  474,  475,  476,
-      477, 2241, 2251,  501, 2388, 2596, 2205, 2391, 2596, 2242,
-     2392, 2393, 2252, 2122, 2596, 2596, 2243, 2161, 2596,  472,
-      473,  474,  475,  476,  477, 2117,  472,  473,  474,  475,
-      476,  477,  378,  379,  380,  381,  382,  383, 2596, 2392,
-     2393, 2252, 2171, 2171, 2171, 2264,  674,  674,  674,  674,
-      674,  674,  674,  674, 2204, 2204, 2204, 1986, 1463, 1463,
-
-     2596, 2267, 1978, 2396, 2397, 2172, 2185, 2185, 2185, 1795,
-     1979, 2596, 2596, 2596, 2596, 2596, 2400,  508,  509,  514,
-      511,  512,  513, 1980, 2173, 1984, 1463, 1463, 2324, 2186,
-     1876, 2265, 2396, 2397, 2172, 2596, 2596, 2596, 1877,  699,
-      700,  701,  702,  703,  704, 2400, 2596, 2596, 2596, 2401,
-     2402, 1878, 1980, 2173, 2177, 2177, 2177, 2324, 2186, 2279,
-     2265, 2275,  763,  763,  763,  763,  763,  763,  763,  763,
-     2323, 2596, 2174, 2596, 2178, 2596, 2596, 2283, 2401, 2402,
-     1878, 2404, 2596,  501, 2205, 2410, 2596, 1987, 2279,  472,
-      473,  474,  475,  476,  477, 2596, 2187, 2596, 2596, 2323,
-
-      378,  379,  380,  381,  382,  383, 2283, 2596, 2596, 2596,
-     2404, 2325, 2332, 2411, 2410, 1985,  472,  473,  474,  475,
-      476,  477, 2596,  378,  379,  380,  381,  382,  383, 2261,
-     2261, 2261, 2596, 2596,  378,  379,  380,  381,  382,  383,
-     2325, 2332, 2411, 2596, 2260, 2262, 2177, 1035, 1035, 1035,
-     1035, 1035, 1035, 1035, 1035, 2333, 2596,  508,  509,  514,
-      511,  512,  513, 1986, 1463, 1463, 2596, 2596, 1978,  658,
-      659,  660,  661,  662,  663, 2596, 1979, 2189, 2189, 2189,
-     2272, 2272, 2272, 2596, 2333, 2596, 2596, 2596, 2596, 1980,
-     2341, 2341, 2341, 2284, 2284, 2284, 2273, 2190, 2189, 1094,
-
-     1094, 1094, 1094, 1094, 1094, 1094, 1094, 2596, 2596, 2596,
-     2596, 2414,  699,  700,  701,  702,  703,  704, 1980, 2263,
-     2351, 2351, 2351, 2354, 2354, 2354, 2359, 2359, 2359, 2300,
-     2300, 2300, 2383, 2345, 2381, 2381, 2381, 2355, 2596, 2389,
-     2414, 2596, 2339, 2339, 2339, 2341, 2341, 2341, 2596, 2596,
-     2415, 2596, 2416, 1987, 2596, 2596, 2596, 2596, 2596, 2596,
-     2596, 2383, 2345,  501, 2390, 2417, 2596, 2271, 2389, 2596,
-     2274, 2596, 2596,  378,  379,  380,  381,  382,  383, 2415,
-     2342, 2416, 2418, 2285,  472,  473,  474,  475,  476,  477,
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+
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+
+      380,  381,  382, 2786, 2786, 1361, 1359, 1360,  377,  378,
+      379,  380,  381,  382, 2786,  377,  378,  379,  380,  381,
+      382, 1362, 1363,  377,  378,  379,  380,  381,  382, 1364,
+     2786, 2786,  377,  378,  379,  380,  381,  382, 2786, 2786,
+     2786,  377,  378,  379,  380,  381,  382, 1367, 2786, 2786,
+     1362, 1363,  377,  378,  379,  380,  381,  382, 1364, 1366,
+     2786, 2786,  377,  378,  379,  380,  381,  382,  377,  378,
+      379,  380,  381,  382, 1365, 2786, 1367,  377,  378,  379,
+      380,  381,  382, 2786, 2786, 2786, 2786, 2786, 1366, 2786,
+     1368, 2786, 1474, 1276, 1276, 2786, 2786, 2786, 2786, 1475,
+
+     1369, 1869, 1870, 1365,  377,  378,  379,  380,  381,  382,
+     1370, 2786,  377,  378,  379,  380,  381,  382, 1371, 1368,
+     2786, 2786,  377,  378,  379,  380,  381,  382, 2786, 1369,
+     1869, 1870, 2786,  377,  378,  379,  380,  381,  382, 1370,
+     2786, 2786, 2786, 2786, 1304, 1065, 1065, 1371,  377,  378,
+      379,  380,  381,  382, 2786, 1373,  377,  378,  379,  380,
+      381,  382,  377,  378,  379,  380,  381,  382,  377,  378,
+      379,  380,  381,  382, 1375, 1372, 2786, 2786, 1871, 2786,
+     2786, 1476, 2786, 1437,  377,  378,  379,  380,  381,  382,
+     2786, 2786, 2786,  377,  378,  379,  380,  381,  382, 2786,
+
+     1377, 1377, 1377, 1375, 1372, 1374, 2786, 1871,  457, 2786,
+     2786,  397, 1437, 1671, 2786, 1376,  377,  378,  379,  380,
+      381,  382, 2786,  818, 1317, 1092, 1092,  377,  378,  379,
+      380,  381,  382, 1305, 1374,  473,  474,  475,  476,  477,
+      478, 1379, 1872, 2786, 1376,  458,  459,  460,  461,  462,
+      463, 2786,  818,  377,  378,  379,  380,  381,  382, 2786,
+     2786, 2786, 2786,  377,  378,  379,  380,  381,  382, 2786,
+     2786, 1872,  377,  378,  379,  380,  381,  382, 1380,  377,
+      378,  379,  380,  381,  382, 1381, 2786,  377,  378, 1378,
+      380,  381,  382, 2786, 1873,  377,  378,  379,  380,  381,
+
+      382, 2786, 1330, 1108, 1108, 1382, 2786, 1380, 2786, 1336,
+     1112, 1112, 1383, 1318, 1381, 1469, 1274, 1274, 2786, 2786,
+     2786, 2786, 1470, 1873,  377,  378,  379,  380,  381,  382,
+     1384, 1385, 2786, 2786, 1382,  377,  378,  379,  380,  381,
+      382, 1383,  377,  378,  379,  380,  381,  382, 1388, 1388,
+     1388, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 1386, 1384,
+     1385,  757, 2786, 1815, 2786, 2786,  377,  378,  379,  380,
+      381,  382, 1387, 1095,  377,  378,  379,  380,  381,  382,
+     2786,  377,  378,  379,  380,  381,  382, 1386, 1390, 2786,
+     2786, 1331,  377,  378,  379,  380,  381,  382, 1337, 1874,
+
+     2786, 1387, 1095, 2786, 1471, 2786,  377,  378,  379,  380,
+      381,  382, 1391, 2786, 1807, 1807, 1807, 1390, 1474, 1276,
+     1276, 1392, 1875, 2786, 2786, 1475, 2786, 2786, 1874,  377,
+      378,  379,  380,  381,  382,  377,  378, 1389,  380,  381,
+      382, 1391, 1393, 1876, 2786, 2786, 2786, 2786, 2786, 2786,
+     1392, 1875, 1396,  377,  378,  379,  380,  381,  382, 2786,
+     2786, 2786,  377,  378,  379,  380,  381,  382, 2786, 2786,
+     2786, 1393, 1876,  377,  378,  379,  380,  381,  382, 1395,
+     1394, 1396, 2786, 2786, 1877, 2786,  377,  378,  379,  380,
+      381,  382, 2786, 2786, 2786, 1878, 2786,  377,  378,  379,
+
+      380,  381,  382, 1808, 2786, 2786, 2786, 1476, 1395, 1394,
+     1397, 1398, 2786, 1877, 2786, 2786, 2786,  377,  378,  379,
+      380,  381,  382, 1399, 1878, 2786, 1879, 2786, 2786, 2786,
+     2786, 2786,  377,  378,  379,  380,  381,  382, 2786, 1397,
+     1398,  377,  378,  379,  380,  381,  382, 1400, 1401, 1412,
+     1412, 1412, 1399, 1416, 2786, 1879,  377,  378,  379,  380,
+      381,  382, 2786, 2786, 1402, 1880,  377,  378,  379,  380,
+      381,  382, 2786, 1432, 2786, 2786, 1400, 1401, 2786, 2786,
+     2786, 1881, 1416, 2786, 2786, 2786, 2786,  377,  378,  379,
+      380,  381,  382, 1402, 1880, 2786, 2786, 2786,  377,  378,
+
+      379,  380,  381,  382,  377,  378,  379,  380,  381,  382,
+     1881,  377,  378,  379,  380,  381,  382, 2786,  456,  456,
+      456,  456,  456,  456,  456,  456,  456,  377,  378,  379,
+      380,  381,  382, 1200, 1200, 1200,  377,  378, 1413,  380,
+      381,  382, 1436, 1414,  473,  474,  475,  476,  477,  478,
+     2786, 2786, 2786, 2786, 1403, 2786, 2786, 1404, 1405, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 1434, 1406, 1407,
+     1408, 1417, 1414, 1418, 1409, 1882, 2786, 1415, 1883, 2786,
+      473,  474,  475,  476,  477,  478, 1404, 1405, 1419, 2786,
+      377,  378,  379,  380,  381,  382, 1434, 1406, 1407, 1408,
+
+     1417, 2786, 1418, 1409, 1882, 2786, 1415, 1883, 2786,  473,
+      474,  475,  476,  477,  478, 1420, 2786, 1419, 1421, 2122,
+     2122, 2122, 1410,  377,  378,  379,  380,  381,  382, 1423,
+     1426, 2786,  377,  378,  379,  380,  381,  382,  377,  378,
+      379,  380,  381,  382, 1420, 2786, 2786, 1421, 2786,  377,
+      378,  379,  380,  381,  382, 2786,  537, 2786, 1423, 1426,
+     2786, 2786,  377,  378,  379,  380,  381,  382, 1778, 1422,
+     1884, 2786, 2786, 1779,  377,  378,  379,  380,  381,  382,
+     1425,  377,  378,  379,  380,  381,  382, 1424, 2786,  377,
+      378,  379,  380,  381,  382, 2786, 2786, 1778, 1422, 1884,
+
+     1427, 2786, 1779, 1428, 2786, 2786, 2786, 2786, 2123, 1425,
+     2786, 2786, 2786, 2786, 2786, 2786, 1424, 2786, 2786, 2786,
+     2786,  377,  378,  379,  380,  381,  382, 1429, 2786, 1427,
+     1430, 1885, 1428,  377,  378,  379,  380,  381,  382,  539,
+      540,  541,  542,  543,  544,  377,  378,  379,  380,  381,
+      382, 1433,  502, 1886, 1887, 1438, 1429, 2786, 2786, 1430,
+     1885,  377,  378,  379,  380,  381,  382, 2786,  377,  378,
+      379,  380,  381,  382,  377,  378,  379,  380,  381,  382,
+     1433, 2786, 1886, 1887,  377,  378,  379,  380,  381,  382,
+     2786,  377,  378,  379,  380,  381,  382,  502, 2786, 2786,
+
+     2786,  377,  378,  379,  380,  381,  382,  502, 1888, 2786,
+     2786, 1911,  473,  474,  475,  476,  477,  478,  502,  553,
+      397, 2786, 1819, 1439, 2786,  509,  510,  515,  512,  513,
+      514, 1913,  818, 1914, 1440,  502, 1915, 1888, 2786, 1916,
+     1911,  502, 2786, 2786, 2786, 2786, 2786,  502, 1917, 1918,
+     2786, 2786, 1439, 1442, 2786, 2786, 2786, 1443, 1441, 1444,
+     1913,  818, 1914, 1440,  502, 1915,  537, 2786, 1916, 2786,
+      509,  510,  515,  512,  513,  514, 1445, 1917, 1918, 2786,
+      509,  510,  515,  512,  513,  514, 1443, 1441, 1444, 2786,
+     2786,  509,  510,  515,  512,  513,  514, 2786,  553,  554,
+
+      555,  556,  557,  558,  559, 1445, 2786, 1919,  509,  510,
+      515,  512,  513,  514,  509,  510,  515,  512,  513,  514,
+      509,  510,  515,  512,  513,  514,  502, 2786, 2786, 2786,
+     2786, 2786,  502, 2786, 2786, 2786, 1919,  509,  510,  515,
+      512,  513,  514,  502, 2786, 1446, 2786, 1449, 1447,  539,
+      540,  541,  542,  543,  544, 1448,  538,  538,  538,  538,
+      538,  538,  538,  538,  538,  552,  552,  552,  552,  552,
+      552,  552,  552,  552, 1446, 2786, 2786, 1447,  554,  555,
+      556,  557,  558,  559, 1448,  546,  547,  548,  549,  550,
+      551,  565, 2786, 1450, 1920, 1921, 1922,  565, 1923,  509,
+
+      510,  515,  512,  513,  514,  509,  510,  515,  512,  513,
+      514, 2786, 2786, 2786, 2786, 2786,  509,  510,  515,  512,
+      513,  514, 1450, 1920, 1921, 1922, 2786, 1923,  566,  567,
+      568,  569,  570,  571,  566,  567,  568,  569,  570,  571,
+      564,  564,  564,  564,  564,  564,  564,  564,  564, 2786,
+     2786, 2786, 2786, 2786,  546,  547,  548,  549,  550,  551,
+      651,  651, 1492, 1486,  651,  651, 2786, 1491,  651,  651,
+      651,  651,  651,  651,  651,  651,  651, 2786,  651,  651,
+      651,  651,  651,  652,  652,  652,  652,  652,  652,  652,
+      652,  652, 1486, 1487, 1487, 1487, 1491, 2786, 1488, 2786,
+
+      660,  661,  662,  663,  664,  665, 1489, 2786, 2786,  651,
+     2786,  651,  692,  692,  692,  692,  692,  692,  692,  692,
+      692, 2786, 2786, 2786, 2786,  660,  661,  662,  663,  664,
+      665, 1493,  660,  661,  662,  663,  664,  665,  651,  651,
+      651,  651,  651,  651,  651,  651,  651,  651,  653,  654,
+      655,  656,  657,  658,  651,  651, 2786, 1498,  651,  651,
+     1493, 2786,  651,  651,  651,  651,  651,  651,  651,  651,
+      651, 1499,  651,  651,  651,  651,  651, 1924, 1925, 1926,
+      660,  661, 1490,  663,  664,  665, 1498,  719,  720,  721,
+      722,  723,  724, 2786,  660,  661,  662,  663,  664,  665,
+
+     2786, 2786, 2786,  651, 2786,  651, 1924, 1925, 1926,  700,
+      701,  702,  703,  704,  705, 2786, 2786, 2786, 2786,  700,
+      701,  702,  703,  704,  705, 1500,  473,  474,  475,  476,
+      477,  478,  651,  651,  651,  651,  651,  651,  651,  651,
+      651,  651,  653,  654,  655,  656,  657,  658,  691,  691,
+     2786, 2786,  691,  691, 1500, 1930,  691,  691,  691,  691,
+      691,  691,  691,  691,  691, 2786,  691,  691,  691,  691,
+      691,  738,  738,  738,  738,  738,  738,  738,  738,  738,
+     1513, 1513, 1513, 1934, 1930, 1544, 1544, 1544,  700,  701,
+      702,  703,  704,  705, 2786, 1956, 1973,  691, 2786,  691,
+
+     1545, 2786, 2786,  757,  757, 1504, 1951, 2786,  397, 2786,
+     1954, 2786, 1934, 2786, 2786,  759, 1095, 2786, 2786, 1505,
+      818, 2786, 2786, 2786, 1956, 1973,  691,  691,  691,  691,
+      691,  691,  691,  691,  691,  691,  693,  694,  695,  696,
+      697,  698,  691,  691,  759, 1095,  691,  691, 1505,  818,
+      691,  691,  691,  691,  691,  691,  691,  691,  691, 2786,
+      691,  691,  691,  691,  691, 2786, 1605,  377,  378, 1514,
+      380,  381,  382, 1974, 1702, 2786,  746,  747,  748,  749,
+      750,  751, 1982, 1983,  746,  747,  748,  749,  750,  751,
+     1603,  691, 2786,  691, 2786,  377,  378,  379,  380,  381,
+
+      382,  397, 1974, 1512,  473,  474,  475,  476,  477,  478,
+     1506, 1982, 1983,  399, 1987, 2786, 1388, 1388, 1388, 2786,
       691,  691,  691,  691,  691,  691,  691,  691,  691,  691,
-      690,  690, 2596,  690,  690,  690,  690,  690,  690,  690,
-      690,  690,  690, 1286, 1286, 2596, 1286, 1286, 1286, 1286,
-     1286, 1286, 1286, 1286, 1286, 1286,  698,  698,  717,  717,
-      737,  737, 2596,  737,  737,  737,  737,  737,  737,  737,
-      737,  737,  737,  736,  736, 2596,  736,  736,  736,  736,
-      736,  736,  736,  736,  736,  736, 1298, 1298, 2596, 1298,
-     1298, 1298, 1298, 1298, 1298, 1298, 1298, 1298, 1298,  744,
-      744, 1312, 1312, 2596, 1312, 1312, 1312, 1312, 1312, 1312,
-     1312, 1312, 1312, 1312, 1318, 1318, 2596, 1318, 1318, 1318,
-
-     1318, 1318, 1318, 1318, 1318, 1318, 1318, 1118, 1118, 2596,
-     1118, 1118, 1118, 1118, 1118, 1118, 1118, 1118, 1118, 1118,
-      377,  377, 2596,  377,  377,  471,  471,  499,  499, 2596,
-     2596, 2596,  499,  544,  544,  579, 2596, 2596,  579,  600,
-     2596, 2596,  600, 1442, 1442, 2596, 1442, 1442, 1442, 1442,
-     1442, 1442, 1442, 1442, 1442, 1442, 1447, 1447, 2596, 1447,
-     1447, 1447, 1447, 1447, 1447, 1447, 1447, 1447, 1447, 1452,
-     1452, 2596, 1452, 1452, 1452, 1452, 1452, 1452, 1452, 1452,
-     1452, 1452, 1264, 1264, 2596, 1264, 1264, 1264, 1264, 1264,
-     1264, 1264, 1264, 1264, 1264,  657,  657, 1278, 1278, 2596,
-
-     1278, 1278, 1278, 1278, 1278, 1278, 1278, 1278, 1278, 1278,
-     1286, 1286, 2596, 1286, 1286, 1286, 1286, 1286, 1286, 1286,
-     1286, 1286, 1286,  698,  698, 1608, 1608, 1608, 1608, 1608,
-     1608, 1608, 1608, 1608, 1608, 1608, 1608, 1608, 1789, 1789,
-     1789, 1789, 1789, 1789, 1789, 1789, 1789, 1789, 1789, 1789,
-     1789, 1874, 1874, 1874, 1874, 1874, 1874, 1874, 1874, 1874,
-     1874, 1874, 1874, 1874, 1895, 1895, 1895, 1895, 1895, 1895,
-     1895, 1895, 1895, 1895, 1895, 1895, 1895, 1903, 1903, 1903,
-     1903, 1903, 1903, 1903, 1903, 1903, 1903, 1903, 1903, 1903,
-     1924, 1924, 1924, 1924, 1924, 1924, 1924, 1924, 1924, 1924,
-
-     1924, 1924, 1924, 1954, 1954, 1954, 1954, 1954, 1954, 1954,
-     1954, 1954, 1954, 1954, 1954, 1954, 1976, 1976, 1976, 1976,
-     1976, 1976, 1976, 1976, 1976, 1976, 1976, 1976, 1976, 2024,
-     2024, 2024, 2024, 2024, 2024, 2024, 2024, 2024, 2024, 2024,
-     2024, 2024,   57, 2596, 2596, 2596, 2596, 2596, 2596, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596,
-
-     2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596,
-     2596, 2596, 2596, 2596, 2596, 2596, 2596, 2596
+      693,  694,  695,  696,  697,  698,  737,  737, 2786, 1506,
+      737,  737,  399, 1987,  737,  737,  737,  737,  737,  737,
+      737,  737,  737, 1551,  737,  737,  737,  737,  737, 2786,
+     2786,  473,  474,  475,  476,  477,  478,  746,  747,  748,
+      749,  750,  751, 2786,  377,  378,  379,  380,  381,  382,
+     1989, 2786, 1551, 1990, 1991,  737, 2786,  737,  377,  378,
+      379,  380,  381,  382, 2786, 2786, 2786, 2786, 2786, 2786,
+
+     1479, 1278, 1278, 2786, 1480, 1552, 2786, 2786, 1519, 1989,
+     2786, 2786, 1990, 1991,  737,  737,  737,  737,  737,  737,
+      737,  737,  737,  737,  739,  740,  741,  742,  743,  744,
+      737,  737, 1515, 2786,  737,  737, 1521, 1519,  737,  737,
+      737,  737,  737,  737,  737,  737,  737, 2786,  737,  737,
+      737,  737,  737, 2786,  377,  378,  379,  380,  381,  382,
+     2786, 1515, 1516, 2786, 1997, 1521, 2786, 1999, 2786, 2786,
+     2786, 2786,  377,  378,  379,  380,  381,  382, 2002,  737,
+     2786,  737, 2786,  377,  378,  379,  380,  381,  382, 1481,
+     2786, 1516, 2786, 1997, 2786, 1517, 1999, 1513, 1513, 1513,
+
+     2786, 2786, 2786, 1518, 1520, 2786, 2786, 2002,  737,  737,
+      737,  737,  737,  737,  737,  737,  737,  737,  739,  740,
+      741,  742,  743,  744, 1517, 1524,  377,  378,  379,  380,
+      381,  382, 1518, 1520, 1673, 2000,  377,  378,  379,  380,
+      381,  382,  377,  378,  379,  380,  381,  382, 2786, 2786,
+     2786, 2003, 2004, 2001, 1524,  377,  378,  379,  380,  381,
+      382, 1522, 2786, 1673, 2000, 2005, 2006,  377,  378,  379,
+      380,  381,  382,  377,  378,  379,  380,  381,  382, 2786,
+     2003, 2004, 2001, 2786, 1523, 2009, 1674, 2786, 2010, 2786,
+     1522, 1525, 2011, 2786, 2005, 2006, 2786, 2786, 2786, 1526,
+
+     2786, 2012, 2786, 2786, 2007, 2013, 2786, 2786, 2786, 2786,
+     2786, 2786, 1527, 1523, 2009, 2008, 2014, 2010, 1531, 2786,
+     1525, 2011,  377,  378,  379,  380,  381,  382, 1526, 1528,
+     2012, 2786, 2786, 2007, 2013,  377,  378,  379,  380,  381,
+      382, 1527, 2786, 2786, 2008, 2014, 1529, 1531, 2786, 2786,
+     2786, 2786,  377,  378,  379,  380,  381,  382, 1528, 1530,
+      377,  378,  379,  380,  381,  382, 1532, 2786, 2786,  377,
+      378,  379,  380,  381,  382, 1529,  377,  378,  379,  380,
+      381,  382,  377,  378,  379,  380,  381,  382, 1530, 2786,
+     2786, 2786,  377,  378,  379,  380,  381,  382, 2786, 2786,
+
+     2015, 2016, 1533, 1534,  377,  378,  379,  380,  381,  382,
+     1536, 2786, 2786, 2786, 2786, 2786,  377,  378,  379,  380,
+      381,  382,  377,  378,  379,  380,  381,  382, 2786, 2015,
+     2016, 2786, 1534, 2786, 2786, 2786, 1560, 1560, 1560, 1536,
+      377,  378,  379,  380,  381,  382, 1555, 1555, 1555, 2786,
+     2017, 1535, 1541,  466,  466,  466,  466,  466,  466,  466,
+      466, 1537,  377,  378,  379,  380,  381,  382, 2786, 1711,
+     1716,  377,  378,  379,  380,  381,  382, 2786, 2786, 2017,
+     1535, 2786, 2786, 2786,  377,  378,  379,  380,  381,  382,
+     1537, 1377, 1377, 1377, 1542, 2786, 2786, 2018, 1711, 1716,
+
+     2786,  377,  378,  379,  380,  381,  382,  377,  378,  379,
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+
+     1841, 2271, 2327, 2786, 2786, 2786, 1648, 2786, 2786, 2786,
+     1736, 2786, 2786, 2786, 2786, 2786, 2786, 1740, 1793, 2328,
+     2272, 2786,  377,  378,  379,  380,  381,  382,  377,  378,
+      379,  380,  381,  382, 1846, 1850, 1850, 1850, 2786, 1736,
+      377,  378,  379,  380,  381,  382, 1740, 1793, 2786, 2786,
+     1851, 2786, 2786,  377,  378,  379,  380,  381,  382, 2786,
+     2786, 2786, 2786, 1846,  377,  378,  379,  380,  381,  382,
+     2786, 1806, 1806, 1806, 1806, 1806, 1806, 1806, 1806, 1806,
+     1855, 2786, 1794, 2786, 2786,  377,  378,  379,  380,  381,
+      382, 1555,  912,  912,  912,  912,  912,  912,  912,  912,
+
+     1560,  912,  912,  912,  912,  912,  912,  912,  912, 1855,
+     2786,  377,  378,  379,  380,  381,  382, 2786, 2786, 2786,
+     2786, 2329,  377,  378, 1852,  380,  381,  382, 1722, 1722,
+     1722, 1856, 2786, 2330, 2786,  377,  378,  379,  380,  381,
+      382, 2786, 2786, 1723, 2786, 2322, 2322, 2322, 2786, 1857,
+     2329, 2331, 2334, 1858,  377,  378,  379,  380,  381,  382,
+     1856, 1889, 2330, 2337, 2786, 1859, 1862,  466,  466,  466,
+      466,  466,  466,  466,  466, 1890, 1891, 2786, 2786, 2786,
+     2331, 2334, 1858,  377,  378,  379,  380,  381,  382, 1895,
+     1889, 2786, 2337, 2786, 1859, 1894,  466,  466,  466,  466,
+
+      466,  466,  466,  466, 1890, 1891, 1898,  377,  378,  379,
+      380,  381,  382, 2786, 2786, 2786, 2786, 1860, 1895, 1896,
+      502,  377,  378,  379,  380,  381,  382,  502, 2188, 2188,
+     2188, 1900, 2335,  502, 2323, 2336, 2338,  377,  378,  379,
+      380,  381,  382, 1685, 1903, 1901, 2339, 2345, 1896, 2786,
+      377,  378,  379,  380,  381,  382, 2786,  502, 2786, 2786,
+     1900, 2335, 1902, 2346, 2336, 2338,  377,  378,  379,  380,
+      381,  382, 2786, 1903, 1901, 2339, 2345,  473,  474,  475,
+      476,  477,  478,  473,  474,  475,  476,  477,  478, 1904,
+     2786,  502, 2346,  509,  510,  515,  512,  513,  514, 1906,
+
+      509,  510,  515,  512,  513,  514,  509,  510,  515,  512,
+      513,  514,  502, 2786, 2193, 2193, 2193, 2189, 1904, 1927,
+     2786, 2347, 2786, 1905, 2786, 2786, 2786, 2786, 1906, 1695,
+      509,  510,  515,  512,  513,  514,  502, 2786, 2786, 2786,
+     2786, 2786,  502, 2786, 2786, 2786, 2786, 1907, 1927, 1945,
+     2347,  502, 1905, 1908,  700,  701,  702,  703,  704,  705,
+     2786, 2786, 1909, 2786,  509,  510,  515,  512,  513,  514,
+      660,  661,  662,  663,  664,  665, 1907, 2348, 1945, 1645,
+     1487, 1487, 1908, 2786, 1792,  509,  510,  515,  512,  513,
+      514, 1909, 1648, 1978, 1978, 1978,  660,  661,  662,  663,
+
+      664,  665, 2786, 2194, 1793, 2349, 2348, 2786, 2786,  509,
+      510,  515,  512,  513,  514,  509,  510,  515,  512,  513,
+      514, 2786, 1979, 2786,  509,  510,  515,  512,  513,  514,
+     1645, 1487, 1487, 1793, 2349, 1792, 1645, 1487, 1487, 2786,
+     1946, 1792, 2351, 1648, 2786, 1931, 1932, 1932, 2786, 1648,
+     1792, 1979, 1939, 1932, 1932, 1793, 1947, 1940, 1797, 2358,
+     2359, 1793, 2360, 2786, 2786, 1941, 2786, 2786, 1794, 1946,
+     1793, 2351, 1928, 1645, 1487, 1487, 1949, 1942, 1792, 2786,
+     2786, 2786, 1980, 2786, 1793, 1947, 1648, 2786, 2358, 2359,
+     1793, 2360,  660,  661,  662,  663,  664,  665, 1793, 1793,
+
+     2786, 1928, 2097, 2097, 2097, 1949, 1942,  700,  701,  702,
+      703,  704,  705, 2786, 1929, 2786, 1948, 1545, 2361, 1794,
+     2362, 2364, 2325, 2325, 2325, 1794, 2786, 1793,  700,  701,
+      702,  703,  704,  705, 1933, 1645, 1487, 1487, 2786, 2786,
+     1792, 1943, 2166, 2166, 2166, 1948, 2786, 2361, 1648, 2362,
+     2364, 1936, 1936, 2786, 2786, 1936, 2167, 1936, 1936, 1936,
+     1793, 2032, 1794,  700,  701,  702,  703,  704,  705,  757,
+     2374, 1952, 2786,  746,  747,  748,  749,  750,  751, 2786,
+     2786,  759,  397, 2340, 1955, 2786, 2786, 2786, 2786, 1793,
+     2786, 2098, 2786, 2341,  399, 2786, 2786, 2786, 2786, 2374,
+
+     1957, 1684,  912,  912,  912,  912,  912,  912,  912,  912,
+      759, 2326, 2340, 1647, 1647, 1647, 1647, 1647, 1647, 1647,
+     1647, 1647, 2341,  399, 1794, 1645, 1487, 1487, 2786, 1957,
+     1792, 2168,  473,  474,  475,  476,  477,  478, 1648, 2786,
+     2049, 2786,  746,  747,  748,  749,  750,  751, 2786, 2375,
+     1793, 2786, 2376, 2378, 2786,  377,  378,  379,  380,  381,
+      382,  377,  378,  379,  380,  381,  382, 2786, 2786, 2049,
+     1958, 2379, 2786, 2786, 2786, 2332, 2332, 2332, 2375, 1793,
+     2786, 2376, 2378,  660,  661,  662,  663,  664,  665, 1959,
+     1694,  912,  912,  912,  912,  912,  912,  912,  912, 1958,
+
+     2379, 1960, 2786, 1645, 1935, 1935, 1935, 1935, 1935, 1935,
+     1935, 1935, 2786, 2786, 1794, 1645, 1487, 1487, 1959, 2786,
+     1792,  377,  378,  379,  380,  381,  382, 2786, 1648, 2786,
+     1960, 1965, 1966,  660,  661,  662,  663,  664,  665, 2786,
+     1793,  377,  378,  379,  380,  381,  382,  377,  378,  379,
+      380,  381,  382,  377,  378,  379,  380,  381,  382, 2786,
+     1965, 1966, 2786, 2786, 2333, 2786, 2212, 2212, 2212, 1793,
+     2786, 2786, 2786, 2786, 2380,  377,  378,  379,  380,  381,
+      382, 1723, 1967, 2786, 2786, 2786,  377,  378,  379,  380,
+      381,  382, 1968, 1935, 1935, 1935, 1935, 1935, 1935, 1935,
+
+     1935, 1935, 2786, 2380, 1794, 1645, 1487, 1487, 2786, 2786,
+     1792, 1967,  377,  378,  379,  380,  381,  382, 1648, 2786,
+     2387, 1968, 2786, 2388, 2389, 2391, 2786, 1976, 2786, 2786,
+     1793, 2786, 2382, 2382, 2382,  377,  378,  379,  380,  381,
+      382, 1975, 2392,  377,  378,  379,  380,  381,  382, 2387,
+     2786, 2786, 2388, 2389, 2391, 2213, 1976, 2786, 2786, 1793,
+     1986,  466,  466,  466,  466,  466,  466,  466,  466, 2393,
+     1975, 2392, 1981, 2786, 2786,  377,  378,  379,  380,  381,
+      382, 2786, 2786, 1647, 1647, 1647, 1647, 1647, 1647, 1647,
+     1647, 1647, 2786, 2034, 1794, 1645, 1487, 1487, 2393, 2786,
+
+     1792, 1981,  377,  378,  379,  380,  381,  382, 1648, 1988,
+     1722,  912,  912,  912,  912,  912,  912,  912,  912, 2394,
+     1793, 2383, 2034, 2786,  377,  378,  379,  380,  381,  382,
+      377,  378,  379,  380,  381,  382, 2786, 2786, 1988, 2786,
+      473,  474,  475,  476,  477,  478, 2786, 2786, 2394, 1793,
+     2786,  757,  397, 2369, 2372,  377,  378,  379,  380,  381,
+      382, 2786, 2025, 1095,  818,  377,  378,  379,  380,  381,
+      382, 2786, 2786, 1936, 1936, 1936, 1936, 1936, 1936, 1936,
+     1936, 1936, 2396, 2786, 1794, 1645, 1487, 1487, 2786, 2786,
+     1792, 2025, 1095,  818, 2786, 2786, 2399, 2030, 1648, 1755,
+
+      912,  912,  912,  912,  912,  912,  912,  912, 2786, 2786,
+     1793, 2396,  377,  378,  379,  380,  381,  382,  502,  377,
+      378,  379,  380,  381,  382, 2399, 2030, 2786, 2033, 2786,
+     2402, 2083, 2083, 2083,  502, 2786, 2255, 2255, 2255, 1793,
+      502, 2188, 2188, 2188,  377,  378,  379,  380,  381,  382,
+     2036, 1756, 2786, 2035, 2786, 2786, 1685, 2033,  502, 2402,
+     2084, 2410, 2786, 1936, 1936, 1936, 1936, 1936, 1936, 1936,
+     1936, 1936,  502, 2786, 1794, 1645, 1487, 1487, 2786, 2036,
+     1792,  473,  474,  475,  476,  477,  478, 2786, 1648, 2084,
+     2410,  509,  510,  515,  512,  513,  514, 2412, 2413, 2786,
+
+     1793, 2786,  502, 2786, 2786, 2786, 2786,  509,  510,  515,
+      512,  513,  514,  509,  510,  515,  512,  513,  514,  502,
+     2085, 2786, 2037, 2068, 2786, 2256, 2412, 2413,  502, 1793,
+     2189,  509,  510,  515,  512,  513,  514, 2038,  502,  700,
+      701,  702,  703,  704,  705,  509,  510,  515,  512,  513,
+      514, 2037, 2068, 1937, 1937, 1937, 1937, 1937, 1937, 1937,
+     1937, 1937, 2416, 2786, 1794, 2786, 2038, 2786, 2786,  660,
+      661,  662,  663,  664,  665,  509,  510,  515,  512,  513,
+      514, 2384, 2384, 2384, 2786, 1645, 1487, 1487, 2786, 2786,
+     1792, 2416,  509,  510,  515,  512,  513,  514, 1648, 2786,
+
+     2786,  509,  510,  515,  512,  513,  514, 2050, 2786, 2786,
+     1793,  509,  510,  515,  512,  513,  514, 1645, 1487, 1487,
+     2786, 2786, 1792, 2786, 2053, 1932, 1932, 2786, 2067, 2054,
+     1648, 2786, 2786, 1939, 1932, 1932, 2050, 2055, 1940, 1793,
+     2417, 2786, 1793, 1645, 1487, 1487, 1941, 2418, 1792, 2056,
+     2060, 1487, 1487, 2419, 2420, 1940, 1648, 2067, 1942, 2421,
+     1939, 1932, 1932, 1941, 2786, 1940, 2786, 2422, 1793, 2417,
+     2385, 1793, 2423, 1941, 1794, 1942, 2418, 2786, 2056, 2090,
+     2090, 2090, 2419, 2420, 2786, 1942, 2786, 1942, 2421,  660,
+      661,  662,  663,  664,  665, 1645, 2422, 1793, 2070, 2786,
+
+     2424, 2423, 2425, 2786, 1942, 2786, 1794, 2426, 2091, 2786,
+     2786, 2786, 2427, 2057, 1942, 2062, 1487, 1487, 2786, 2428,
+     2054, 2058, 1943, 2786, 2786, 2786, 2786, 2070, 2055, 2424,
+     2786, 2425, 1794, 1645, 1487, 1487, 2426, 2091, 1792, 2061,
+     2056, 2427, 2060, 1487, 1487, 2069, 1648, 1940, 2428, 1943,
+     2429, 2071, 2060, 1487, 1487, 2064, 2430, 1940, 1793,  700,
+      701,  702,  703,  704,  705, 1941, 2786, 1942, 2092, 2056,
+     2060, 1487, 1487, 2786, 2069, 1940, 2437, 1942, 2786, 2429,
+     2071, 2786, 2786, 1941, 2786, 2430, 2786, 1793,  700,  701,
+      702,  703,  704,  705, 2065, 1942, 1942,  700,  701,  702,
+
+      703,  704,  705, 2438, 2063, 2437, 1942, 2152,  757, 2439,
+     2074, 1647, 1647, 1647, 1647, 1647, 1647, 1647, 1647, 1647,
+      759, 2786, 1794, 2065, 1942,  397, 2786, 2077, 2786, 2441,
+     2786, 2061, 2438, 1978, 1978, 1978, 2152,  399, 2439, 2786,
+     2786, 2061, 2786, 2786, 2786, 2450, 2786, 2451, 2066,  759,
+     2786,  377,  378,  379,  380,  381,  382, 2786, 2441, 2061,
+     2079, 2786, 1979, 2786, 2456, 2457,  399, 2462,  473,  474,
+      475,  476,  477,  478, 2450, 2081, 2451, 2080, 2786, 2463,
+     2464,  746,  747,  748,  749,  750,  751, 2151, 2786, 2079,
+     2087, 1979, 2786, 2456, 2457, 2786, 2462, 2786,  377,  378,
+
+      379,  380,  381,  382, 2081, 2786, 2080, 2786, 2463, 2464,
+     2786, 2786,  377,  378,  379,  380,  381,  382, 2086, 2087,
+     2786, 2096, 1980,  377,  378,  379,  380,  381,  382, 2786,
+      377,  378,  379,  380,  381,  382,  377,  378,  379,  380,
+      381,  382, 2786, 2465, 2473, 2088, 2786, 2086, 2786, 2786,
+     2096,  377,  378,  379,  380,  381,  382, 2786,  473,  474,
+      475,  476,  477,  478, 2786,  377,  378,  379,  380,  381,
+      382, 2095, 2465, 2473, 2088, 2786, 2786, 2786,  377,  378,
+      379,  380,  381,  382,  377,  378,  379,  380,  381,  382,
+     2786, 2786, 2786,  377,  378,  379,  380,  381,  382, 2145,
+
+     2095, 1850,  912,  912,  912,  912,  912,  912,  912,  912,
+     2112, 2112, 2112, 2147, 2147, 2147, 2786, 2153, 2786,  377,
+      378,  379,  380,  381,  382, 2786, 2786, 2786, 2145, 2786,
+      377,  378,  379,  380,  381,  382, 2786, 2786, 2476, 2113,
+      502, 2478, 2148, 2479, 2480, 2786, 2153,  502, 2786, 2786,
+      377,  378,  379,  380,  381,  382, 2170,  502, 2155, 2313,
+     2313, 2313, 2786, 2786, 2786,  502, 2154, 2476, 2113, 2156,
+     2478, 2148, 2479, 2480,  473,  474,  475,  476,  477,  478,
+     2481, 2482, 2193, 2193, 2193, 2170, 2786, 2155, 2786,  377,
+      378,  379,  380,  381,  382, 2154, 2786, 1695, 2156, 2114,
+
+     2157, 2786, 2149,  660,  661,  662,  663,  664,  665, 2481,
+     2482, 2786, 2786,  509,  510,  515,  512,  513,  514, 2786,
+      509,  510,  515,  512,  513,  514, 2315, 2315, 2315, 2485,
+      509,  510,  515,  512,  513,  514, 2786, 2786,  509,  510,
+      515,  512,  513,  514, 1645, 1487, 1487, 2483, 2314, 1792,
+     2062, 1487, 1487, 2786, 2486, 2054, 2484, 1648, 2485, 2053,
+     1932, 1932, 2786, 2055, 2054, 2062, 1487, 1487, 2786, 1793,
+     2054, 2194, 2055, 2487, 2488, 2056, 2483, 2171, 2055, 2786,
+     2062, 1487, 1487, 2486, 2056, 2054, 2062, 1487, 1487, 2786,
+     2056, 2054, 2786, 2172, 2786, 2062, 1487, 1487, 1793, 2055,
+
+     2054, 2489, 2487, 2488, 2056, 2056, 2171, 2490, 2055, 2493,
+     2786, 2056, 2786, 2056, 2494, 2316, 1645, 1487, 1487, 2056,
+     2056, 1792, 2060, 1487, 1487, 2786, 2495, 1940, 2173, 1648,
+     2489, 2786, 2496, 1794, 2056, 1941, 2490, 2786, 2493, 2063,
+     2056, 1793, 2786, 2494,  757, 2497, 2445, 1942, 2057, 2056,
+     2786, 2298, 2298, 2298, 2063, 2495, 1095, 2173, 2060, 1487,
+     1487, 2496, 2786, 1940, 2786, 2786, 1851, 2786, 2498, 2063,
+     1793, 1941, 2499, 2174, 2497, 2063, 1942, 2062, 1487, 1487,
+     2786, 2786, 2054, 1942, 2063, 1095,  397, 2786, 2448, 2786,
+     2055, 2062, 1487, 1487, 1931, 2786, 2054, 2498,  818, 2786,
+
+     2786, 2499, 2056, 2178, 2055, 1794, 2507, 2786, 1939, 1932,
+     1932, 2061, 1942, 1940, 2491, 2492, 2056, 2060, 1487, 1487,
+     2786, 2064, 1940, 2786, 2060, 1487, 1487,  818, 2786, 1940,
+     1941, 2056, 2178, 1942, 2179, 2507, 2175, 1941, 2508, 2177,
+     2299, 2180, 1942, 2491, 2492, 2056,  757, 2061, 2183, 1942,
+     2786,  660,  661,  662,  663,  664,  665, 2786,  759, 2083,
+     2083, 2083, 1942, 2179, 2786, 2786, 2063, 2508, 2177, 2176,
+     2180, 1942,  377,  378,  379,  380,  381,  382, 1942, 2786,
+     2063,  700,  701,  702,  703,  704,  705,  759, 2084,  700,
+      701,  702,  703,  704,  705, 2786,  397, 1943, 2186, 2212,
+
+     2212, 2212, 1939, 2786, 2786, 2786, 2061, 2786,  399, 2786,
+     2786, 2786, 2786, 2061, 1723, 2786, 2509, 2084, 2510,  746,
+      747,  748,  749,  750,  751, 2786, 2786, 2400, 2400, 2400,
+      377,  378,  379,  380,  381,  382, 2786,  399,  377,  378,
+      379,  380,  381,  382, 2786, 2509, 2511, 2510, 2085, 2255,
+     2255, 2255,  377,  378,  379,  380,  381,  382, 2520, 2786,
+     2192, 2786, 2521, 2199, 1756, 2090, 2090, 2090, 2786,  377,
+      378,  379,  380,  381,  382, 2511,  377,  378,  379,  380,
+      381,  382, 2452, 2452, 2452, 2786, 2200, 2520, 2213, 2192,
+     2260, 2521, 2199, 2786, 2091, 2205, 2205, 2205, 2112, 2112,
+
+     2112, 2786, 2134, 2134, 2134, 2454, 2454, 2454, 2786,  377,
+      378,  379,  380,  381,  382, 2200, 2401,  377,  378,  379,
+      380,  381,  382, 2091, 2206, 2786, 2234, 2113, 2524, 2235,
+     2262, 2786,  377,  378,  379,  380,  381,  382, 2256, 2786,
+     2382, 2382, 2382, 2236, 2525, 2786, 2147, 2147, 2147, 2786,
+     2466, 2466, 2466, 2206, 2092, 2234, 2113, 2524, 2235, 2262,
+     2254,  473,  474,  475,  476,  477,  478, 2526, 2529, 2786,
+     2786, 2453, 2236, 2525,  502, 2148, 2530,  473,  474,  475,
+      476,  477,  478,  502, 2207, 2786, 2786, 2114, 2786, 2254,
+     2261, 2135, 2242,  502, 2455, 2786, 2526, 2529, 2243,  502,
+
+     2786, 2263, 2244, 2245, 2148, 2530, 2786, 2246, 2247, 2248,
+     2786, 2249,  377,  378,  379,  380,  381,  382, 2786, 2261,
+     2786, 2242, 2270, 2270, 2270, 2264, 2531, 2243, 2786, 2383,
+     2263, 2244, 2245, 2533, 2786, 2149, 2246, 2247, 2248, 2467,
+     2249,  473,  474,  475,  476,  477,  478,  509,  510,  515,
+      512,  513,  514, 2539, 2264, 2531,  509,  510,  515,  512,
+      513,  514, 2533, 2271, 2786, 2786,  509,  510,  515,  512,
+      513,  514,  509,  510,  515,  512,  513,  514, 1645, 1487,
+     1487, 2540, 2539, 1792, 2053, 1932, 1932, 2543, 2786, 2054,
+     2786, 1648, 2271, 2062, 1487, 1487, 2786, 2172, 2054, 2062,
+
+     1487, 1487, 2786, 1793, 2054, 2544, 2055, 2786, 2786, 2056,
+     2540, 2272, 2055, 2545, 2546, 2275, 2543,  757, 2056, 2281,
+     2060, 1487, 1487, 2547, 2056, 1940, 2062, 1487, 1487,  759,
+     2786, 2054, 1793, 1941, 2544, 2060, 1487, 1487, 2056, 2055,
+     1940, 2786, 2545, 2546, 2275, 1942, 2786, 2056, 1941, 2548,
+     2786, 2056, 2547, 2056, 2549, 2786, 2550, 2551,  759,  397,
+     1942, 2284, 2786, 2786, 2786, 2786, 2786, 1794, 2276, 2786,
+     2277,  399, 2786, 2057, 1942, 2786, 2552, 2053, 2548, 2278,
+     2056, 2553, 2063, 2549, 2786, 2550, 2551, 2786, 2063, 1942,
+      746,  747,  748,  749,  750,  751, 2786, 2276, 2060, 2277,
+
+      399, 2294, 2289, 2786, 2062, 2552, 2786, 2786, 2278, 2061,
+     2553, 2786, 2786, 2786, 2786, 2063,  660,  661,  662,  663,
+      664,  665, 2786, 2353, 2061,  700,  701,  702,  703,  704,
+      705, 2289,  377,  378,  379,  380,  381,  382, 2295,  377,
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+     1316, 1316, 1316, 1316, 1316, 1316,  745,  745, 2786, 2786,
+      745, 1329, 1329, 2786, 1329, 1329, 1329, 1329, 1329, 1329,
+     1329, 1329, 1329, 1335, 1335, 2786, 1335, 1335, 1335, 1335,
+     1335, 1335, 1335, 1335, 1335, 1129, 1129, 2786, 1129, 1129,
+     1129, 1129, 1129, 1129, 1129, 1129, 1129,  376,  376, 2786,
+     2786,  376,  472,  472,  500,  500, 2786, 2786,  500,  545,
+      545,  580, 2786,  580,  601, 2786,  601, 1468, 1468, 2786,
+     1468, 1468, 1468, 1468, 1468, 1468, 1468, 1468, 1468, 1473,
+
+     1473, 2786, 1473, 1473, 1473, 1473, 1473, 1473, 1473, 1473,
+     1473, 1478, 1478, 2786, 1478, 1478, 1478, 1478, 1478, 1478,
+     1478, 1478, 1478, 1283, 1283, 2786, 1283, 1283, 1283, 1283,
+     1283, 1283, 1283, 1283, 1283,  659,  659, 1295, 1295, 2786,
+     1295, 1295, 1295, 1295, 1295, 1295, 1295, 1295, 1295, 1303,
+     1303, 2786, 1303, 1303, 1303, 1303, 1303, 1303, 1303, 1303,
+     1303,  699,  699, 1644, 1644, 1644, 1644, 1644, 1644, 1644,
+     1644, 1644, 1644, 1644, 1644, 1843, 1843, 1843, 1843, 1843,
+     1843, 1843, 1843, 1843, 1843, 1843, 1843, 1938, 1938, 1938,
+     1938, 1938, 1938, 1938, 1938, 1938, 1938, 1938, 1938, 1962,
+
+     1962, 1962, 1962, 1962, 1962, 1962, 1962, 1962, 1962, 1962,
+     1962, 1970, 1970, 1970, 1970, 1970, 1970, 1970, 1970, 1970,
+     1970, 1970, 1970, 1993, 1993, 1993, 1993, 1993, 1993, 1993,
+     1993, 1993, 1993, 1993, 1993, 2027, 2027, 2027, 2027, 2027,
+     2027, 2027, 2027, 2027, 2027, 2027, 2027, 2052, 2052, 2052,
+     2052, 2052, 2052, 2052, 2052, 2052, 2052, 2052, 2052, 2104,
+     2104, 2104, 2104, 2104, 2104, 2104, 2104, 2104, 2104, 2104,
+     2104,   59, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786
     } ;
 
-static yyconst flex_int16_t yy_chk[17539] =
+static yyconst flex_int16_t yy_chk[17967] =
     {   0,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
@@ -3252,7 +3361,7 @@ static yyconst flex_int16_t yy_chk[17539] =
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    3,    3,    3,    3,    3,
+        1,    1,    1,    1,    3,    3,    3,    3,    3,    3,
 
         3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
         3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
@@ -3262,10 +3371,9 @@ static yyconst flex_int16_t yy_chk[17539] =
         3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
         3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
         3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
-        3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
-        5,    6,   64,   64,   64,   64,   64,   64, 2585,    5,
+        3,    3,    3,    3,    3,    3,    3,    3,    5,    6,
+       66,   66,   66,   66,   66,   66, 2770,    5,    6,    7,
 
-        6,    7,    7,    7,    7,    7,    7,    7,    7,    7,
         7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
         7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
         7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
@@ -3274,7 +3382,8 @@ static yyconst flex_int16_t yy_chk[17539] =
         7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
         7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
         7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
-        7,    7,    7,    7,    7,    7,    9,    9,    9,    9,
+        7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
+        7,    7,    7,    9,    9,    9,    9,    9,    9,    9,
 
         9,    9,    9,    9,    9,    9,    9,    9,    9,    9,
         9,    9,    9,    9,    9,    9,    9,    9,    9,    9,
@@ -3284,8 +3393,8 @@ static yyconst flex_int16_t yy_chk[17539] =
         9,    9,    9,    9,    9,    9,    9,    9,    9,    9,
         9,    9,    9,    9,    9,    9,    9,    9,    9,    9,
         9,    9,    9,    9,    9,    9,    9,    9,    9,    9,
-        9,    9,    9,    9,    9,    9,    9,    9,    9,    9,
-        9,   11,   11,   11,   11,   11,   11,   11,   11,   11,
+        9,    9,    9,    9,    9,    9,    9,   11,   11,   11,
+       11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
 
        11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
        11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
@@ -3295,19 +3404,19 @@ static yyconst flex_int16_t yy_chk[17539] =
        11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
        11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
        11,   11,   11,   11,   11,   11,   11,   11,   11,   11,
-       11,   11,   11,   11,   11,   11,   13,   13,   13,   27,
-       14,   14,   14,   13,   28,   29,   13,   14,   13,   30,
-
-       14,   31,   14,   15,   15,   15,   32,   16,   16,   16,
-       15,   39,   40,   15,   16,   15,   55,   16,   47,   16,
-       48,   67,   67,   69,   55,  108,   69,   69,   70,   70,
-      108,   27, 2580,   55,   39,   40,   28,   29,   89,  109,
-      109,   30,  125,  132,   56,   55,   31,  125,   47, 2569,
-       48,   32,   56,   55,  106,  106,  106,  106,  106,  106,
-      130,   56,   55,   39,   40,  130,  151,   89, 2561,  137,
-      166,  151,  132,   56, 2560,  166,   13,   47,   13,   48,
-       14,   56,   14,   89,   89,   89,   89,   89,   89,  183,
-       56,  191, 2559,   15,  183,   15,  191,   16,  137,   16,
+       11,   13,   13,   13,   27,   14,   14,   14,   13,   28,
+       29,   13,   14,   13,   30,   14,   31,   14,   15,   15,
+
+       15,   32,   16,   16,   16,   15,   39,   40,   15,   16,
+       15,  110,   16,   47,   16,   48,  110,   71,   71,   57,
+       71,   85,   99,  134,  139,   27, 2765,   57,   39,   40,
+       28,   29,  127, 2763,  132,   30,   57,  127,   58,  132,
+       31, 2757,   47, 2750,   48,   32,   58, 2741,   57,  153,
+       85, 2740,  134,  139,  153,   58,   57,   39,   40,   99,
+       99,   99,   99,   99,   99,   57, 2739,   58,  624,  624,
+       13,   47,   13,   48,   14,   58,   14, 2731,   85,   85,
+       85,   85,   85,   85,   58,  168, 2730,   15, 2728,   15,
+      168,   16, 2727,   16,   19,   19,   19,   19,   19,   19,
 
        19,   19,   19,   19,   19,   19,   19,   19,   19,   19,
        19,   19,   19,   19,   19,   19,   19,   19,   19,   19,
@@ -3317,45 +3426,44 @@ static yyconst flex_int16_t yy_chk[17539] =
        19,   19,   19,   19,   19,   19,   19,   19,   19,   19,
        19,   19,   19,   19,   19,   19,   19,   19,   19,   19,
        19,   19,   19,   19,   19,   19,   19,   19,   19,   19,
-       19,   19,   19,   19,   19,   19,   19,   19,   19,   19,
-       19,   19,   19,   19,   19,   21,   21,   21,   22,   22,
-
-       22, 2552,   72,   21,   72,   72,   22,   23,   23,   23,
-       65, 2551,   23, 2549,   23,   72,   23,   23,   24,   24,
-       24,   97,  172,   24,  173,   24, 2548,   24,   24,   25,
-       25,   25,  320,  320,   25,  135,   25,   25,   25,   25,
-       26,   26,   26,  135,   72,   26,  174,   26,   26,   26,
-       26,  172, 2545,  173,   83,  136, 1455,   76,   97,   97,
-       97,   97,   97,   97,  135,  200,  323,  323, 2526,  136,
-      200,   76,  135,  175,   76,  174,   72,   72,   72,   72,
-       72,   72, 2511,   83,  136,   21,   76,   21,   22,  205,
-       22,   65,   65,   65,   65,   65,   65,   23,  136,   23,
-
-       76,  221,  175,   76,  228, 2509,  221, 2507,   24,  228,
-       24,   83,   83,   83,   83,   83,   83, 2501,  205,   25,
-     2496,   25,   76,   76,   76,   76,   76,   76,  392,  392,
-       26, 1455,   26,   37,   37,   37,   37,   37,   37,   37,
+       19,   19,   19,   19,   19,   19,   19,   19,   21,   21,
+       21,   22,   22,   22,  688,  688,   21,  174, 2724,   22,
+
+       23,   23,   23,   67, 2722,   23, 2718,   23,   82,   23,
+       23,   24,   24,   24, 1703, 1703,   24,  175,   24,   80,
+       24,   24,   25,   25,   25,   80,  174,   25, 2708,   25,
+       25,   25,   25,   26,   26,   26,  176,   82,   26, 2705,
+       26,   26,   26,   26,   87,  177,  175,  136,   80,   78,
+      185, 2701,  136, 2698,   80,  185,   82,   82,   82,   82,
+       82,   82, 2688,   78, 2685,  176,   78,   80,   80,   80,
+       80,   80,   80,   87,  177,  207,  136,   21,   78,   21,
+       22,  136,   22,   67,   67,   67,   67,   67,   67,   23,
+     2675,   23,   78,  193,  202,   78,  223, 2673,  193,  202,
+
+       24,  223,   24, 2671,  207,   87,   87,   87,   87,   87,
+       87,   25, 2665,   25,   78,   78,   78,   78,   78,   78,
+      323,  323,   26,  323,   26,   37,   37,   37,   37,   37,
        37,   37,   37,   37,   37,   37,   37,   37,   37,   37,
        37,   37,   37,   37,   37,   37,   37,   37,   37,   37,
        37,   37,   37,   37,   37,   37,   37,   37,   37,   37,
        37,   37,   37,   37,   37,   37,   37,   37,   37,   37,
        37,   37,   37,   37,   37,   37,   37,   37,   37,   37,
        37,   37,   37,   37,   37,   37,   37,   37,   37,   37,
-
        37,   37,   37,   37,   37,   37,   37,   37,   37,   37,
+
        37,   37,   37,   37,   37,   37,   37,   37,   37,   37,
-       37,   37,   37,   37,   37,   37,   37,   37,   41,   41,
-       41,   77,   41,   41, 2443,   41,   41,   41,   42,   42,
-       42,   41,   42,   42,   77,   42,   42,   42,   75,  134,
-     2487,   42,   75,   78,  134,  138,  197,  197,  138,   78,
-       77,   85,  149,  149,  149,  149,  149,  149, 2477,   41,
-      206,  268,  322,   77, 2476,  322,  322,   75,  134,   42,
-     2449,   75,   78,  134,  138,  197,  197,  138,   78, 2448,
-       85, 2447,   77,   77,   77,   77,   77,   77,   41,  206,
-
-      268,   78,   78,   78,   78,   78,   78, 2444,   42,   75,
-       75,   75,   75,   75,   75, 2441,  478, 2443,   41, 2430,
-       41,  478,   85,   85,   85,   85,   85,   85,   42, 2413,
+       37,   37,   37,   37,   37,   37,   37,   37,   37,   41,
+       41,   41, 2659,   41,   41, 2585,   41,   41,   41,   42,
+       42,   42,   41,   42,   42,  230,   42,   42,   42,   74,
+      230,   74,   42,  141,   91,  137,   81,  199,  199,   81,
+       94,   74,   81,  137,  138,  141,  208,   94,   94,   41,
+      108,  108,  108,  108,  108,  108,  269,   94,  138,   42,
+       94, 2656,  141,   91,  137,   81,  199,  199,   81,   94,
+       74,   81,  137,  138,  141,  208,   94,   94,   41,   91,
+       91,   91,   91,   91,   91,  269,   94,  138,   42,   94,
+
+       81,   81,   81,   81,   81,   81,  479, 2585,   41, 2655,
+       41,  479,   74,   74,   74,   74,   74,   74,   42, 2653,
        42,   43,   43,   43,   43,   43,   43,   43,   43,   43,
        43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
        43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
@@ -3363,21 +3471,20 @@ static yyconst flex_int16_t yy_chk[17539] =
        43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
        43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
        43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
-
        43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
+
        43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
-       43,   43,   43,   43,   43,   43,   45,   45,   45,   45,
+       43,   43,   43,   43,   43,   45,   45,   45,   45,   45,
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
-       45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
-
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
        45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
-       45,   49,   49,   49,   49,   49,   49,   49,   49,   49,
+
+       45,   45,   45,   45,   45,   45,   45,   45,   45,   49,
        49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
        49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
        49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
@@ -3385,1793 +3492,1842 @@ static yyconst flex_int16_t yy_chk[17539] =
        49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
        49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
        49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
-
        49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
-       49,   49,   49,   49,   49,   49,   51,   51,   51,  480,
-      480,   51, 2409,   52,   52,   52, 2408,  278,   52,   51,
-     1599,   59,   59,   59,  312,   51,   52,   60,   60,   60,
-      344,  496,   52,  139,   51,   62,  496,   53,   53,   53,
-       80,   52,   53,  345, 1445,  139,  278,   54,   54,   54,
-       53,   51,   54,  312,  622,  622,   53,  353,   52,  344,
-       54, 2403,  139,   51, 2400,   53,   54,  687,  687,   80,
-       52,   53,  345,  207,  139,   54, 2399,  354,  207,  356,
-       51,   54,  245,  245,  245,  357,  353,   52,   80,   80,
-
-       80,   80,   80,   80,   53, 1599,   51,   81, 2395,  358,
-       53,   81,  207,   52,   54,   81,  354,  207,  356, 2394,
-       54,   59,   94,  515,  357,  582, 1445,   60,  515,   62,
-       62,   62,   62,   62,   62, 2382,   81,   53,  358, 2362,
-       81,  559,  612,  612,   81,  612,  559,   54,   63,   63,
-       86,   94,   63,   63,  582,   90,   63,   63,   63,   63,
-       63,   63,   63,   63,   63,   90,  583,   63,   63,   63,
-       63,   63,   81,   81,   81,   81,   81,   81,  580,   86,
-      592,  148,  245,  580,   90,  592, 2360,   94,   94,   94,
-       94,   94,   94,  584,   90,  583, 2356,  585,   63, 1450,
-
-       63,   86,   86,   86,   86,   86,   86,   98,   98,   98,
-       98,   98,   98,   98,   98,   98,   90,   90,   90,   90,
-       90,   90,  584,  246,  246,  246,  585,   63,   63,   63,
-       63,   63,   63,   63,   63,   63,   63,   63,   63,   63,
-       63,   63,   63,   74,  208,   74,  270,  270,  270,  526,
-       74,   74,   74,   79,   82,  503,   79,   82,  503,   79,
-      526,  208,  586,  587,   82,  148,  148,  148,  148,  148,
-      148, 1450,   74,  208,   74,  271,  271,  271,  526,   74,
-       74,   74,   79,   82,  503,   79,   82,  503,   79,  526,
-      208,  586,  587,   82,  751,  751, 2352,   74,   74,   74,
-
-       74,   74,   74,  282,  282,  282, 2346,   79,   79,   79,
-       79,   79,   79,  246,   84, 2342,   82,   82,   82,   82,
-       82,   82,   84,   87,   92,   96,  505,   87,   84,   88,
-      518,   92,   92,   96,  505,   87,  270,   88,  504,   87,
-      518,   92,   96,   84,   92,   96,   88,  504, 2340,   88,
-     2336,   84,   87,   92,   96,  505,   87,   84,   88,  518,
-       92,   92,   96,  505,   87,  271,   88,  504,   87,  518,
-       92,   96, 2335,   92,   96,   88,  504,  519,   88,   84,
-       84,   84,   84,   84,   84,  519, 2331,   87,   87,   87,
-       87,   87,   87,  282,   88,   88,   88,   88,   88,   88,
-
-       91,  506,   93,   91,   93,  517,  519,   93,  506,   91,
-      110,  110,  517, 2330,  519,   91,   99,   99,   99,   99,
-       99,   99,   99,   99,   99,  818,  818, 1087, 1087,   91,
-      506,   93,   91,   93,  517, 2304,   93,  506,   91, 2301,
-      588,  517,  111,  589,   91,  100,  100,  100,  100,  100,
-      100,  100,  100,  100,   93,   93,   93,   93,   93,   93,
-       95,   91,   91,   91,   91,   91,   91,   95,   95,  588,
-      596,  111,  589, 2298,  603,  596,  601,   95,  114,  603,
-       95, 2297,  110,  110,  110,  110,  110,  110, 2294,   95,
-      111,  111,  111,  111,  111,  111,   95,   95,  249,  249,
-
-      249,  249,  249,  249, 2292,  601,   95,  114,  112,   95,
-      101,  101,  101,  101,  101,  101,  101,  101,  101,  102,
-      102,  102,  102,  102,  102,  102,  102,  102,  103,  103,
-      103,  103,  103,  103,  103,  103,  103,  112,  113,  114,
-      114,  114,  114,  114,  114,  115,  116,  117,  117,  117,
-      117,  117,  117,  117,  117,  117, 1122, 1122, 1123, 1123,
-      112,  112,  112,  112,  112,  112, 2286,  113,  238,  238,
-      238,  150,  238,  238,  115,  116,  283,  283,  283, 1124,
-     1124,  238, 2285,  113,  113,  113,  113,  113,  113, 1125,
-     1125,  115,  115,  115,  115,  115,  115,  118,  118,  118,
-
-      118,  118,  118,  118,  118,  118, 2274,  116,  116,  116,
-      116,  116,  116,  119,  119,  119,  119,  119,  119,  119,
-      119,  119,  120,  120,  120,  120,  120,  120,  120,  120,
-      120,  121,  121,  121,  121,  121,  121,  121,  121,  121,
-      122,  122,  122,  122,  122,  122,  122,  122,  122,  127,
-      127,  127,  150,  150,  150,  150,  150,  150,  238,  602,
-      127, 2271,  127,  127, 1126, 1126,  283, 2270,  394,  394,
-      129,  129,  129,  176,  605,  127,  127,  176,  127,  394,
-     2263,  129, 2260,  129,  129,  606,  176,  127,  602,  127,
-      176,  127,  286,  286,  286,  286,  286,  286,  131,  131,
-
-      131, 2258,  176,  605,  127,  127,  176,  127,  394,  131,
-      154,  131,  131, 2257,  606,  176,  127,  615,  127,  176,
-      127, 2248,  615, 2229,  131,  141,  141,  141,  141,  141,
-      141,  141,  141,  141, 2227,  396,  396,  127,  127,  127,
-      127,  127,  127,  128,  128,  128,  396,  154,  154,  154,
-      154,  154,  154,  131,  128,  152,  128,  128,  129,  129,
-      129,  129,  129,  129, 1302, 1302,  232,  232,  232,  128,
-      128,  232,  128,  232, 2221,  396, 1303, 1303, 2219,  232,
-     2216,  128,  153,  128,  152,  128,  131,  131,  131,  131,
-      131,  131,  301,  301,  301,  301,  301,  301,  128,  128,
-
-      527,  128,  318,  318,  318,  318,  318,  318,  527,  520,
-      128,  153,  128,  140,  128,  520,  140,  140, 1304, 1304,
-      152,  152,  152,  152,  152,  152,  140, 2211,  607,  527,
-      140,  128,  128,  128,  128,  128,  128,  527,  520, 1305,
-     1305, 2210,  140, 2207,  520,  140,  140,  153,  153,  153,
-      153,  153,  153,  619, 2205,  140,  232,  607,  619,  140,
-      142,  142,  142,  142,  142,  142,  142,  142,  142,  143,
-      143,  143,  143,  143,  143,  143,  143,  143,  144,  144,
-      144,  144,  144,  144,  144,  144,  144,  145,  145,  145,
-      145,  145,  145,  145,  145,  145,  146,  146,  146,  146,
-
-      146,  146,  146,  146,  146,  155,  155,  155,  155,  155,
-      155,  155,  155,  155,  156,  156,  156,  156,  156,  156,
-      156,  156,  156,  157,  157,  157,  157,  157,  157,  157,
-      157,  157,  158,  158,  158,  158,  158,  158,  158,  158,
-      158,  159,  159,  159,  159,  159,  159,  159,  159,  159,
-      160,  160,  160,  160,  160,  160,  160,  160,  160,  235,
-      235,  235,  255,  608,  235,  256,  235,  258,  256,  257,
-     1306, 1306,  235,  261,  261,  261,  261,  261,  261,  261,
-      261,  261,  262,  262,  262,  262,  262,  262,  262,  262,
-      262,  255,  608,  609,  256, 2197,  258,  256,  257,  362,
-
-      377,  377,  377,  377,  377,  377, 2194,  255,  255,  255,
-      255,  255,  255, 1664, 1664, 2401,  256,  256,  256,  256,
-      256,  256,  609,  257,  257,  257,  257,  257,  257, 1597,
-     1774, 1774,  258,  258,  258,  258,  258,  258,  259,  263,
-      263,  263,  263,  263,  263,  263,  263,  263, 2188,  235,
-      248,  248, 1782, 1782,  248,  248, 1789, 1789,  248,  248,
-      248,  248,  248,  248,  248,  248,  248,  259,  610,  248,
-      248,  248,  248,  248,  264,  264,  264,  264,  264,  264,
-      264,  264,  264,  362,  362,  362,  362,  362,  362,  259,
-      259,  259,  259,  259,  259,  680,  685,  610, 1598, 2401,
-
-      248, 1597,  248,  265,  265,  265,  265,  265,  265,  265,
-      265,  265,  266,  266,  266,  266,  266,  266,  266,  266,
-      266, 2187,  291,  292,  680,  685,  314,  314,  314,  248,
-      248,  248,  248,  248,  248,  248,  248,  248,  248,  248,
-      248,  248,  248,  248,  248,  285,  285, 1803, 1803,  285,
-      285,  291,  292,  285,  285,  285,  285,  285,  285,  285,
-      285,  285, 1832, 1832,  285,  285,  285,  285,  285, 2175,
-     1598, 1895, 1895,  291,  291,  291,  291,  291,  291,  294,
-      294,  294,  294,  294,  294,  294,  294,  294,  292,  292,
-      292,  292,  292,  292,  293,  285, 2174,  285,  295,  295,
-
-      295,  295,  295,  295,  295,  295,  295,  296,  296,  296,
-      296,  296,  296,  296,  296,  296,  314,  401,  401,  401,
-      401,  401,  401,  293,  285,  285,  285,  285,  285,  285,
-      285,  285,  285,  285,  285,  285,  285,  285,  285,  285,
-     1903, 1903, 1917, 1917, 2163,  293,  293,  293,  293,  293,
-      293,  297,  297,  297,  297,  297,  297,  297,  297,  297,
+       49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
+
+       49,   49,   49,   51,   51,   51,  279,  497,   51,   52,
+       52,   52,  497, 2642,   52,  313,   51,   61,   61,   61,
+      140,   51,   52,  140,   55,   55,   55,   52, 2632,   55,
+       51,   62,   62,   62, 2631,  279,   52,   55,   98,   77,
+      343,   64,   55,   77,  313,  516,   98,   51,  344,  140,
+      516,   55,  140,   52, 2621,   98,  352,   55,   98,   51,
+      353,   56,   56,   56,  355,   52,   56,   98,   77,  343,
+       79, 2618,   77, 2612,   56,   98,   51,  344,  356,   56,
+       55, 2591,   52,   79,   98,  352,   55,   98,   56,  353,
+      357, 2590,   51,  355,   56,  247,  247,  247,   52,   79,
+
+       77,   77,   77,   77,   77,   77,   61,  356,  504,  583,
+       83,  504,   79,   55,   83, 2589,  560,   56,   83,  357,
+       62,  560, 2586,   56,   64,   64,   64,   64,   64,   64,
+     1471,   79,   79,   79,   79,   79,   79,  504,  583,   83,
+      504,  581,  394,   83,  394,   96,  581,   83, 1828, 1828,
+       56,   65,   65,   88,  394,   65,   65,  584,   92,   65,
+       65,   65,   65,   65,   65,   65,   65,   65,   92,   65,
+       65,   65,   65,   65,   96,   83,   83,   83,   83,   83,
+       83, 2583,   88,  394,  247, 1481,  584,   92,  100,  100,
+      100,  100,  100,  100,  100,  100,  100,   92,  585, 2575,
+
+       65, 1471,   65, 2530,   88,   88,   88,   88,   88,   88,
+       96,   96,   96,   96,   96,   96,  395, 2572,  397,   92,
+       92,   92,   92,   92,   92, 1476,  395,  585,  397,   65,
+       65,   65,   65,   65,   65,   65,   65,   65,   65,   65,
+       65,   65,   65,   65,   65,   76,   84,   76,  586,   84,
+       86,  527,   76,   76,   76,  395,   84,  397,   86, 1481,
+     2726,  150,  527,  588,   86,  101,  101,  101,  101,  101,
+      101,  101,  101,  101,   76,   84,   76,  586,   84,   86,
+      527,   76,   76,   76, 2564,   84, 2530,   86,  248,  248,
+      248,  527,  588,   86,  614,  614, 1476,  614, 2563,   76,
+
+       76,   76,   76,   76,   76,  210,   90, 1635,   84,   84,
+       84,   84,   84,   84,   90,   86,   86,   86,   86,   86,
+       86,   89,  210,   90,  507,   89,   90,   95,  506,   95,
+      520,  507,   95,   89,  210,   90,  506,   89,  520,  271,
+      271,  271, 2726,   90,  150,  150,  150,  150,  150,  150,
+       89,  210,   90,  507,   89,   90,   95,  506,   95,  520,
+      507,   95,   89,  593,  597,  506,   89,  520,  593,  597,
+      589,   90,   90,   90,   90,   90,   90,  248, 1635,   95,
+       95,   95,   95,   95,   95,   89,   89,   89,   89,   89,
+       89,   93,  505,  209,   93,   97, 2542,  113,  209,  589,
+
+       93,  505,   97,   97,  518,  523,   93,  521,  590,  602,
+      209,  518,   97,  521,  523,   97,  272,  272,  272, 2538,
+       93,  505,  209,   93,   97,  112,  113,  209,  271,   93,
+      505,   97,   97,  518,  523,   93,  521,  590,  602,  209,
+      518,   97,  521,  523,   97,  113,  113,  113,  113,  113,
+      113, 1636,   93,   93,   93,   93,   93,   93,  102,  102,
+      102,  102,  102,  102,  102,  102,  102,  103,  103,  103,
+      103,  103,  103,  103,  103,  103,  104,  104,  104,  104,
+      104,  104,  104,  104,  104,  105,  105,  105,  105,  105,
+      105,  105,  105,  105,  114,  115,  112,  112,  112,  112,
+
+      112,  112,  116,  603, 2537,  272,  117,  606,  118,  119,
+      119,  119,  119,  119,  119,  119,  119,  119, 1836, 1836,
+     1843, 1843, 1636,  114,  115,  151,  151,  151,  151,  151,
+      151,  116,  603,  604,  617,  117,  606,  118,  604,  617,
+      115,  115,  115,  115,  115,  115,  114,  114,  114,  114,
+      114,  114,  117,  117,  117,  117,  117,  117,  283,  283,
+      283, 1861, 1861,  116,  116,  116,  116,  116,  116,  118,
+      118,  118,  118,  118,  118,  120,  120,  120,  120,  120,
+      120,  120,  120,  120,  121,  121,  121,  121,  121,  121,
+      121,  121,  121,  122,  122,  122,  122,  122,  122,  122,
+
+      122,  122,  123,  123,  123,  123,  123,  123,  123,  123,
+      123,  124,  124,  124,  124,  124,  124,  124,  124,  124,
+      129,  129,  129,  621,  607,  156, 2532,  608,  621,  609,
+      818,  129,  818,  129,  129,  818,  152, 1893, 1893, 1962,
+     1962,  131,  131,  131,  522,  129,  129,  283,  129,  610,
+     2529,  522,  131,  607,  131,  131,  608,  129,  609,  129,
+      587,  129,  156,  156,  156,  156,  156,  156,  133,  133,
+      133, 1970, 1970,  522,  129,  129,  587,  129,  610,  133,
+      522,  133,  133, 1985, 1985, 2528,  129, 1637,  129,  587,
+      129, 1993, 1993,  133,  143,  143,  143,  143,  143,  143,
+
+      143,  143,  143, 2027, 2027,  587,  154,  129,  129,  129,
+      129,  129,  129,  130,  130,  130,  152,  152,  152,  152,
+      152,  152,  133, 2523,  130, 2522,  130,  130,  131,  131,
+      131,  131,  131,  131,  611,  154,  612,  257,  130,  130,
+      257,  130,  251,  251,  251,  251,  251,  251,  667,  667,
+      130,  155,  130, 2517,  130,  133,  133,  133,  133,  133,
+      133, 1637, 2514,  611, 2502,  612,  257,  130,  130,  257,
+      130,  154,  154,  154,  154,  154,  154,  667,  667,  130,
+      155,  130,  142,  130,  519,  142,  142, 2501,  257,  257,
+      257,  257,  257,  257,  519,  142,  681,  686,  734,  142,
+
+      130,  130,  130,  130,  130,  130, 2477,  819, 2475,  819,
+     2471,  142,  819,  519,  142,  142,  155,  155,  155,  155,
+      155,  155, 2467,  519,  142,  681,  686,  734,  142,  144,
+      144,  144,  144,  144,  144,  144,  144,  144,  145,  145,
+      145,  145,  145,  145,  145,  145,  145,  146,  146,  146,
+      146,  146,  146,  146,  146,  146,  147,  147,  147,  147,
+      147,  147,  147,  147,  147,  148,  148,  148,  148,  148,
+      148,  148,  148,  148,  157,  157,  157,  157,  157,  157,
+      157,  157,  157,  158,  158,  158,  158,  158,  158,  158,
+      158,  158,  159,  159,  159,  159,  159,  159,  159,  159,
+
+      159,  160,  160,  160,  160,  160,  160,  160,  160,  160,
+      161,  161,  161,  161,  161,  161,  161,  161,  161,  162,
+      162,  162,  162,  162,  162,  162,  162,  162,  178,  234,
+      234,  234,  178,  756,  234, 2461,  234, 2104, 2104,  258,
+      259,  178,  234,  756,  774,  178,  237,  237,  237, 1844,
+      821,  237,  821,  237, 1844,  821,  775,  178,  781,  237,
+      260,  178,  240,  240,  240, 2459,  240,  240,  258,  259,
+      178, 2455,  756,  774,  178,  240,  262,  262,  262,  262,
+      262,  262,  262,  262,  262,  775, 1963,  781,  782,  260,
+     2453, 1963, 2447,  258,  258,  258,  258,  258,  258,  287,
+
+      287,  287,  287,  287,  287,  259,  259,  259,  259,  259,
+      259,  260,  260,  260,  260,  260,  260,  782,  234,  263,
+      263,  263,  263,  263,  263,  263,  263,  263,  284,  284,
+      284, 2444, 2431, 2415, 2409,  237,  264,  264,  264,  264,
+      264,  264,  264,  264,  264,  302,  302,  302,  302,  302,
+      302,  240,  250,  250, 1971, 2407,  250,  250, 2404, 1971,
+      250,  250,  250,  250,  250,  250,  250,  250,  250,  292,
+      250,  250,  250,  250,  250,  265,  265,  265,  265,  265,
+      265,  265,  265,  265,  266,  266,  266,  266,  266,  266,
+      266,  266,  266,  315,  315,  315, 2401,  784,  292,  785,
+
+      786,  250, 2398,  250,  267,  267,  267,  267,  267,  267,
+      267,  267,  267, 1095, 2397, 1095, 2394,  284, 1095,  293,
+      292,  292,  292,  292,  292,  292,  784, 2392,  785,  786,
+      250,  250,  250,  250,  250,  250,  250,  250,  250,  250,
+      250,  250,  250,  250,  250,  250,  286,  286,  293,  294,
+      286,  286,  977,  757,  286,  286,  286,  286,  286,  286,
+      286,  286,  286,  757,  286,  286,  286,  286,  286,  295,
+      295,  295,  295,  295,  295,  295,  295,  295,  294, 2386,
+     2385,  977,  315, 2383,  293,  293,  293,  293,  293,  293,
+     2371, 1096,  757, 1096, 1994,  286, 1096,  286, 2368, 1994,
+
+      294,  294,  294,  294,  294,  294,  296,  296,  296,  296,
+      296,  296,  296,  296,  296,  297,  297,  297,  297,  297,
+      297,  297,  297,  297,  286,  286,  286,  286,  286,  286,
+      286,  286,  286,  286,  286,  286,  286,  286,  286,  286,
       298,  298,  298,  298,  298,  298,  298,  298,  298,  299,
-      299,  299,  299,  299,  299,  299,  299,  299,  304,  305,
-      305,  305,  305,  305,  305,  305,  305,  305,  306,  306,
+      299,  299,  299,  299,  299,  299,  299,  299,  300,  300,
+      300,  300,  300,  300,  300,  300,  300,  305,  306,  306,
       306,  306,  306,  306,  306,  306,  306,  307,  307,  307,
-
-      307,  307,  307,  307,  307,  307, 2161,  304,  308,  308,
-      308,  308,  308,  308,  308,  308,  308,  309,  309,  309,
-      309,  309,  309,  309,  309,  309,  304,  304,  304,  304,
-      304,  304,  310,  310,  310,  310,  310,  310,  310,  310,
-      310,  315,  315,  315,  324,  328,  324,  324,  329,  330,
-      454,  454,  454,  454,  454,  454, 2144,  324,  332,  332,
-      332,  332,  332,  332,  332,  332,  332,  733,  773, 2135,
-     1790,  399,  774, 2133,  328, 1790, 2132,  329,  330,  399,
-      471,  471,  471,  471,  471,  471,  324,  339,  339,  339,
-      328,  328,  328,  328,  328,  328,  733,  773,  753,  753,
-
-      399,  774,  329,  329,  329,  329,  329,  329,  399,  753,
-      330,  330,  330,  330,  330,  330, 1924, 1924,  324,  324,
-      324,  324,  324,  324, 2124,  399,  399,  399,  399,  399,
-      399,  315,  317,  317, 1896, 2122,  317,  317,  753, 1896,
-      317,  317,  317,  317,  317,  317,  317,  317,  317, 1954,
-     1954,  317,  317,  317,  317,  317,  333,  333,  333,  333,
-      333,  333,  333,  333,  333,  334,  334,  334,  334,  334,
-      334,  334,  334,  334,  340,  340,  340,  339,  348,  348,
-      348,  780,  317, 2117,  317,  335,  335,  335,  335,  335,
-      335,  335,  335,  335,  336,  336,  336,  336,  336,  336,
-
-      336,  336,  336,  349,  349,  349,  359,  359,  359, 2112,
-      780,  317,  317,  317,  317,  317,  317,  317,  317,  317,
-      317,  317,  317,  317,  317,  317,  317,  337,  337,  337,
-      337,  337,  337,  337,  337,  337,  363,  363,  363,  363,
-      363,  363,  363,  363,  363,  364,  364,  364,  364,  364,
-      364,  364,  364,  364,  365,  365,  365,  365,  365,  365,
-      365,  365,  365,  781,  340, 2107,  783,  384,  348,  366,
-      366,  366,  366,  366,  366,  366,  366,  366,  367,  367,
-      367,  367,  367,  367,  367,  367,  367,  393,  393,  393,
-     2024, 2024,  781,  349,  537,  783,  359,  368,  368,  368,
-
-      368,  368,  368,  368,  368,  368,  370,  370, 1904, 2105,
-      370,  370, 2102, 1904,  370,  370,  370,  370,  370,  370,
-      370,  370,  370, 2100, 2096,  370,  370,  370,  370,  370,
-      371,  371,  371,  371,  371,  371,  371,  371,  371,  372,
-      372,  372,  372,  372,  372,  372,  372,  372,  384,  384,
-      384,  384,  384,  384, 2079,  784,  370, 2064,  370,  373,
-      373,  373,  373,  373,  373,  373,  373,  373,  374,  374,
-      374,  374,  374,  374,  374,  374,  374,  393,  537,  537,
-      537,  537,  537,  537,  784,  370,  370,  370,  370,  370,
-      370,  370,  370,  370,  370,  370,  370,  370,  370,  370,
-
-      370,  375,  375,  375,  375,  375,  375,  375,  375,  375,
-      376,  376,  376,  376,  376,  376,  376,  376,  376,  378,
-      378,  378,  378,  378,  378,  378,  378,  378,  379,  379,
-      379,  379,  379,  379,  379,  379,  379,  380,  380,  380,
-      380,  380,  380,  380,  380,  380,  381,  381,  381,  381,
-      381,  381,  381,  381,  381,  382,  382,  382,  382,  382,
-      382,  382,  382,  382,  383,  383,  383,  383,  383,  383,
-      383,  383,  383,  386,  386,  386,  386,  386,  386,  386,
-      386,  386,  387,  387,  387,  387,  387,  387,  387,  387,
-      387,  388,  388,  388,  388,  388,  388,  388,  388,  388,
-
-      389,  389,  389,  389,  389,  389,  389,  389,  389,  390,
-      390,  390,  390,  390,  390,  390,  390,  390,  391,  391,
-      391,  391,  391,  391,  391,  391,  391,  397,  400,  397,
-      397,  398,  402,  398,  405,  455,  398,  398,  785,  968,
-      397,  457,  457,  457,  457,  457,  457,  457,  457,  457,
-     2052, 2042,  533,  533, 2033,  403,  533,  400,  533,  533,
-      533,  402, 2023,  405,  624,  624,  624,  785,  968,  397,
-      404,  624,  455,  455,  455,  455,  455,  455,  402,  402,
-      402,  402,  402,  402,  403,  406,  405,  405,  405,  405,
-      405,  405, 2021,  400,  400,  400,  400,  400,  400,  404,
-
-     2019,  397,  397,  397,  397,  397,  397,  408,  398,  398,
-      398,  398,  398,  398,  406, 2013,  521,  403,  403,  403,
-      403,  403,  403,  521,  969, 2006,  970,  407,  407,  404,
-      404,  404,  404,  404,  404,  407,  408,  410,  972,  406,
-      406,  406,  406,  406,  406,  521,  973,  409,  411,  409,
-     1971, 1953,  521,  969,  624,  970,  407,  407,  409, 1923,
-     1916, 1913, 2547, 1902,  407,  409,  410,  972,  408,  408,
-      408,  408,  408,  408,  413,  973,  409,  411,  409,  453,
-      407,  407,  407,  407,  407,  407, 1894,  409,  410,  410,
-      410,  410,  410,  410,  409,  412,  411,  411,  411,  411,
-
-      411,  411,  414,  413, 1880,  414,  412,  975,  453,  418,
-     1857, 1847,  409,  409,  409,  409,  409,  409,  415,  416,
-     1831, 1807, 1805, 1802,  412,  453,  453,  453,  453,  453,
-      453,  414, 1925,  416,  414,  412,  975, 1925,  418,  413,
-      413,  413,  413,  413,  413, 2547,  417,  415,  416,  419,
-      414,  414,  414,  414,  414,  414,  412,  412,  412,  412,
-      412,  412,  416,  418,  418,  418,  418,  418,  418,  415,
-      415,  415,  415,  415,  415,  417,  420,  421,  419, 1795,
-     1788, 1781, 1773, 1768,  416,  416,  416,  416,  416,  416,
-      417,  417,  417,  417,  417,  417,  576,  576,  424,  423,
-
-      576, 1757,  576,  576,  576,  420,  421,  422,  419,  419,
-      419,  419,  419,  419,  489,  489,  489,  489,  489,  489,
-      489,  489,  422,  422, 1745, 1725, 1708,  424,  423,  421,
-      421,  421,  421,  421,  421,  425,  422,  425,  426,  420,
-      420,  420,  420,  420,  420,  424,  424,  424,  424,  424,
-      424,  422,  422,  423,  423,  423,  423,  423,  423,  427,
-      428, 1703, 1678, 1670,  425, 1663,  425,  426,  441,  422,
-      422,  422,  422,  422,  422,  429,  981,  430, 1660, 1656,
-     1646,  426,  426,  426,  426,  426,  426,  432,  427,  428,
-      425,  425,  425,  425,  425,  425, 1635,  441,  544,  544,
-
-      544,  544,  544,  544,  429,  981,  430,  427,  427,  427,
-      427,  427,  427, 1955,  431,  982,  432,  435, 1955,  441,
-      441,  441,  441,  441,  441,  428,  428,  428,  428,  428,
-      428,  429,  429,  429,  429,  429,  429,  430,  430,  430,
-      430,  430,  430,  431,  982,  433,  435,  434,  525,  432,
-      432,  432,  432,  432,  432,  437,  523,  436,  525,  437,
-      983,  815,  523,  815, 1607, 1556,  815,  815,  431,  431,
-      431,  431,  431,  431,  433, 1544,  434,  525,  435,  435,
-      435,  435,  435,  435,  437,  523,  436,  525,  437,  983,
-     1543,  523, 1541,  433,  433,  433,  433,  433,  433,  434,
-
-      434,  434,  434,  434,  434,  436,  436,  436,  436,  436,
-      436,  665,  984, 1525, 1518,  522,  437,  437,  437,  437,
-      437,  437,  438,  439,  522, 1513,  524,  438,  757,  665,
-      665,  985,  439,  524,  439,  438,  442,  438,  986,  440,
-      665,  984,  443,  438,  522,  987,  757,  440, 1485, 1483,
-     1477,  438,  439,  522,  444,  524,  438,  757,  665,  665,
-      985,  439,  524,  439,  438,  442,  438,  986,  440, 1473,
-     1471,  443,  438, 1465,  987,  757,  440,  439,  439,  439,
-      439,  439,  439,  444,  445, 1457,  452,  438,  438,  438,
-      438,  438,  438,  440,  440,  440,  440,  440,  440,  447,
-
-     1456,  442,  442,  442,  442,  442,  442,  443,  443,  443,
-      443,  443,  443,  445,  448,  452,  988,  448,  444,  444,
-      444,  444,  444,  444,  446,  637,  637,  637,  447,  637,
-     1454, 1452,  445,  445,  445,  445,  445,  445,  449, 1451,
-     1449, 1447,  449,  448,  446,  988,  448,  452,  452,  452,
-      452,  452,  452,  446,  482, 1026,  447,  447,  447,  447,
-      447,  447,  493,  493,  493,  493,  493,  449,  493,  493,
-      493,  449, 1446,  446,  754,  754,  448,  448,  448,  448,
-      448,  448,  450,  482, 1026,  754, 1444, 1027,  450,  446,
-      446,  446,  446,  446,  446,  451, 1442, 1440, 1436,  449,
-
-      449,  449,  449,  449,  449,  482,  482,  482,  482,  482,
-      482,  450, 1434, 1028,  754,  637, 1027,  450,  657,  657,
-      657,  657,  657,  657,  451,  458,  458,  458,  458,  458,
-      458,  458,  458,  458, 1431, 1429,  450,  450,  450,  450,
-      450,  450, 1028,  451,  451,  451,  451,  451,  451,  459,
+      307,  307,  307,  307,  307,  307,  308,  308,  308,  308,
+      308,  308,  308,  308,  308, 2363,  305,  309,  309,  309,
+
+      309,  309,  309,  309,  309,  309,  310,  310,  310,  310,
+      310,  310,  310,  310,  310,  305,  305,  305,  305,  305,
+      305,  311,  311,  311,  311,  311,  311,  311,  311,  311,
+      316,  316,  316,  319,  319,  319,  319,  319,  319,  325,
+      328,  325,  329, 2362, 2352, 2350, 2333, 2328,  338,  338,
+      338,  325,  331,  331,  331,  331,  331,  331,  331,  331,
+      331,  376,  376,  376,  376,  376,  376, 2326, 2323,  328,
+     2321,  329,  339,  339,  339,  347,  347,  347, 2316, 2314,
+      325,  332,  332,  332,  332,  332,  332,  332,  332,  332,
+     2311, 2306, 2305,  978,  328,  328,  328,  328,  328,  328,
+
+     2301, 2299, 2290,  329,  329,  329,  329,  329,  329, 2287,
+     2282, 2279,  325,  325,  325,  325,  325,  325, 2028,  316,
+      318,  318,  978, 2028,  318,  318, 2273, 2272,  318,  318,
+      318,  318,  318,  318,  318,  318,  318,  338,  318,  318,
+      318,  318,  318,  333,  333,  333,  333,  333,  333,  333,
+      333,  333,  334,  334,  334,  334,  334,  334,  334,  334,
+      334,  339,  361, 2259,  347,  348,  348,  348,  979,  318,
+     2258,  318,  335,  335,  335,  335,  335,  335,  335,  335,
+      335,  336,  336,  336,  336,  336,  336,  336,  336,  336,
+      358,  358,  358,  383, 2256, 2237, 2226,  979,  318,  318,
+
+      318,  318,  318,  318,  318,  318,  318,  318,  318,  318,
+      318,  318,  318,  318,  362,  362,  362,  362,  362,  362,
+      362,  362,  362,  363,  363,  363,  363,  363,  363,  363,
+      363,  363,  364,  364,  364,  364,  364,  364,  364,  364,
+      364,  392,  392,  392, 2224,  361,  361,  361,  361,  361,
+      361, 2223, 2215, 2213,  348,  365,  365,  365,  365,  365,
+      365,  365,  365,  365,  366,  366,  366,  366,  366,  366,
+      366,  366,  366,  383,  383,  383,  383,  383,  383,  358,
+      367,  367,  367,  367,  367,  367,  367,  367,  367,  369,
+      369, 2105, 2207,  369,  369, 2201, 2105,  369,  369,  369,
+
+      369,  369,  369,  369,  369,  369, 2196,  369,  369,  369,
+      369,  369,  370,  370,  370,  370,  370,  370,  370,  370,
+      370,  371,  371,  371,  371,  371,  371,  371,  371,  371,
+      392,  402,  402,  402,  402,  402,  402,  981,  369, 2194,
+      369,  372,  372,  372,  372,  372,  372,  372,  372,  372,
+      373,  373,  373,  373,  373,  373,  373,  373,  373,  455,
+      455,  455,  455,  455,  455, 2191,  981,  369,  369,  369,
+      369,  369,  369,  369,  369,  369,  369,  369,  369,  369,
+      369,  369,  369,  374,  374,  374,  374,  374,  374,  374,
+      374,  374,  375,  375,  375,  375,  375,  375,  375,  375,
+
+      375,  377,  377,  377,  377,  377,  377,  377,  377,  377,
+      378,  378,  378,  378,  378,  378,  378,  378,  378,  379,
+      379,  379,  379,  379,  379,  379,  379,  379,  380,  380,
+      380,  380,  380,  380,  380,  380,  380,  381,  381,  381,
+      381,  381,  381,  381,  381,  381,  382,  382,  382,  382,
+      382,  382,  382,  382,  382,  385,  385,  385,  385,  385,
+      385,  385,  385,  385,  386,  386,  386,  386,  386,  386,
+      386,  386,  386,  387,  387,  387,  387,  387,  387,  387,
+      387,  387,  388,  388,  388,  388,  388,  388,  388,  388,
+      388,  389,  389,  389,  389,  389,  389,  389,  389,  389,
+
+      390,  390,  390,  390,  390,  390,  390,  390,  390,  398,
+      400,  398,  399,  755,  399,  755, 2189,  399,  400, 2184,
+      524,  398, 2181,  982,  403,  755,  524,  983,  985,  401,
+      458,  458,  458,  458,  458,  458,  458,  458,  458,  400,
+      472,  472,  472,  472,  472,  472, 2168,  400,  404,  524,
+      398,  414,  982,  403,  755,  524,  983,  985,  401, 2150,
+     2149,  649,  649,  649,  400,  400,  400,  400,  400,  400,
+      403,  403,  403,  403,  403,  403,  405,  404,  418,  445,
+      414, 2135,  398,  398,  398,  398,  398,  398,  399,  399,
+      399,  399,  399,  399,  401,  401,  401,  401,  401,  401,
+
+      406,  991,  992,  409,  407,  405, 2123,  418,  445, 2114,
+      404,  404,  404,  404,  404,  404,  414,  414,  414,  414,
+      414,  414,  418,  418,  418,  418,  418,  418, 2103,  406,
+      991,  992,  409,  407, 2100,  405,  405,  405,  405,  405,
+      405,  408,  408,  445,  445,  445,  445,  445,  445,  408,
+      649,  993,  406,  406,  406,  406,  406,  406,  407,  407,
+      407,  407,  407,  407,  409,  409,  409,  409,  409,  409,
+      408,  408,  410,  411,  410, 2098,  528, 2092,  408,  994,
+      993, 2085,  412,  410,  528,  494,  494,  494,  494,  494,
+      410,  494,  494,  494,  408,  408,  408,  408,  408,  408,
+
+     2075,  410,  411,  410,  817,  528,  817,  413,  994, 2072,
+      820,  412,  410,  528,  415,  995,  817,  415,  413,  410,
+      820,  996,  997,  416,  411,  411,  411,  411,  411,  411,
+      412,  412,  412,  412,  412,  412,  413,  410,  410,  410,
+      410,  410,  410,  415,  995,  817,  415,  413, 2048,  820,
+      996,  997,  416, 2042, 2031,  998,  419,  420,  456, 2026,
+      999,  421,  415,  415,  415,  415,  415,  415,  413,  413,
+      413,  413,  413,  413,  416,  416,  416,  416,  416,  416,
+      417,  626,  626,  626,  998,  419,  420, 1992,  626,  999,
+      421, 1984, 1980,  538,  417,  456,  456,  456,  456,  456,
+
+      456,  422, 1037, 1038, 1048,  424, 1051, 1079, 1969,  417,
+      419,  419,  419,  419,  419,  419,  420,  420,  420,  420,
+      420,  420,  423,  417,  421,  421,  421,  421,  421,  421,
+      422, 1037, 1038, 1048,  424, 1051, 1079,  423,  423, 1110,
+      429, 1961,  426,  425,  426,  417,  417,  417,  417,  417,
+      417,  423, 1953,  422,  422,  422,  422,  422,  422,  424,
+      424,  424,  424,  424,  424, 1950,  423,  423, 1110,  429,
+      626,  426,  425,  426,  427,  428,  538,  538,  538,  538,
+      538,  538,  430,  433,  423,  423,  423,  423,  423,  423,
+      425,  425,  425,  425,  425,  425,  482,  426,  426,  426,
+
+      426,  426,  426,  427,  428,  429,  429,  429,  429,  429,
+      429,  430,  433, 1944, 1922,  431, 1911,  427,  427,  427,
+      427,  427,  427,  428,  428,  428,  428,  428,  428,  432,
+      545,  545,  545,  545,  545,  545, 1111,  435,  430,  430,
+      430,  430,  430,  430,  431,  433,  433,  433,  433,  433,
+      433, 1897,  434,  436, 1892,  534,  534, 1865,  432,  534,
+     1863,  534,  534,  534, 1860, 1111,  435,  482,  482,  482,
+      482,  482,  482, 1854, 1851,  431,  431,  431,  431,  431,
+      431,  434,  436,  432,  432,  432,  432,  432,  432,  435,
+      435,  435,  435,  435,  435,  437,  443,  526, 1097,  442,
+
+      434,  434,  434,  434,  434,  434,  438,  526, 1097,  440,
+      438,  440, 1114, 1115,  436,  436,  436,  436,  436,  436,
+      440,  666,  666,  666,  437,  443,  526,  440,  442,  440,
+      444,  440, 1849, 1842, 1835,  438,  526, 1097,  440,  438,
+      440, 1114, 1115,  437,  437,  437,  437,  437,  437,  440,
+      442,  442,  442,  442,  442,  442,  440, 1827,  440,  444,
+      440,  443,  443,  443,  443,  443,  443,  438,  438,  438,
+      438,  438,  438,  439,  441,  439,  441,  446,  439,  639,
+      639,  639,  448,  639,  439,  441,  439, 1822,  439,  447,
+     1818,  439,  441,  441,  439,  444,  444,  444,  444,  444,
+
+      444, 1814,  439,  441,  439,  441,  446,  439, 1808,  447,
+      666,  448, 1796,  439,  441,  439,  449,  439,  447,  449,
+      439,  441,  441,  439, 1116,  446,  446,  446,  446,  446,
+      446,  450, 1098, 1117, 1098,  450,  452, 1098,  447,  448,
+      448,  448,  448,  448,  448,  449, 1776,  453,  449, 1094,
+     1761, 1094, 1756, 1116,  447,  447,  447,  447,  447,  447,
+      450, 1094, 1117, 1751,  450,  452, 1723, 1717,  639,  451,
+      454, 1118, 1256, 1257, 1258,  451,  453, 1259,  449,  449,
+      449,  449,  449,  449,  452,  452,  452,  452,  452,  452,
+     1094, 1712,  450,  450,  450,  450,  450,  450,  451,  454,
+
+     1118, 1256, 1257, 1258,  451, 1709, 1259, 1702,  453,  453,
+      453,  453,  453,  453, 1699, 1695,  454,  454,  454,  454,
+      454,  454, 1685,  451,  451,  451,  451,  451,  451,  459,
       459,  459,  459,  459,  459,  459,  459,  459,  460,  460,
       460,  460,  460,  460,  460,  460,  460,  461,  461,  461,
       461,  461,  461,  461,  461,  461,  462,  462,  462,  462,
       462,  462,  462,  462,  462,  463,  463,  463,  463,  463,
       463,  463,  463,  463,  464,  464,  464,  464,  464,  464,
-
       464,  464,  464,  465,  465,  465,  465,  465,  465,  465,
       465,  465,  466,  466,  466,  466,  466,  466,  466,  466,
+
       466,  467,  467,  467,  467,  467,  467,  467,  467,  467,
       468,  468,  468,  468,  468,  468,  468,  468,  468,  469,
       469,  469,  469,  469,  469,  469,  469,  469,  470,  470,
-      470,  470,  470,  470,  470,  470,  470,  472,  472,  472,
-      472,  472,  472,  472,  472,  472,  473,  473,  473,  473,
+      470,  470,  470,  470,  470,  470,  470,  471,  471,  471,
+      471,  471,  471,  471,  471,  471,  473,  473,  473,  473,
       473,  473,  473,  473,  473,  474,  474,  474,  474,  474,
       474,  474,  474,  474,  475,  475,  475,  475,  475,  475,
       475,  475,  475,  476,  476,  476,  476,  476,  476,  476,
-
       476,  476,  477,  477,  477,  477,  477,  477,  477,  477,
-      477,  481,  481,  483,  486,  488,  488,  488,  488,  488,
-      488,  488,  488,  488, 1039, 1042, 1070, 1089,  484, 1090,
-      485, 1100,  563,  698,  698,  698,  698,  698,  698,  487,
-     1389, 1327,  483,  486,  490,  490,  490,  490,  490,  490,
-      490,  490,  490, 1039, 1042, 1070, 1089,  484, 1090,  485,
-     1100, 1321,  486,  486,  486,  486,  486,  486,  487,  563,
-      563,  563,  563,  563,  563,  483,  483,  483,  483,  483,
-      483, 1320, 1315,  481,  481,  481,  481,  481,  481,  484,
-      484,  484,  484,  484,  484,  485,  485,  485,  485,  485,
-
-      485, 1314, 1301, 1300,  487,  487,  487,  487,  487,  487,
-      491,  491,  491,  491,  491,  491,  491,  491,  491,  492,
-      492,  492,  492,  492,  492,  492,  492,  492,  494,  494,
-      494,  494,  494,  494,  494,  494,  494,  495,  495,  495,
-      495,  495,  495,  495,  495,  495,  498,  498,  498, 1289,
-      816,  816,  499,  499,  499, 1288, 1101,  498, 1281,  498,
-      498,  816, 1280,  499, 1270,  499,  499,  500,  500,  500,
-     1104, 2025,  498,  498, 1267,  498, 2025, 1266,  500, 1105,
-      500,  500, 1106,  507,  498, 1101,  498,  507,  498, 1107,
-      816,  507,  502,  502,  502, 1108,  507, 1260,  561, 1104,
-
-      507,  498,  498,  502,  498,  502,  502, 1258, 1105, 1256,
-     1251, 1106,  507,  498, 1121,  498,  507,  498, 1107, 1120,
-      507, 1103, 1099,  502, 1108,  507,  817,  561,  817,  507,
-     1083,  817,  817, 1071,  498,  498,  498,  498,  498,  498,
-      499,  499,  499,  499,  499,  499,  561,  561,  561,  561,
-      561,  561,  502, 1057, 1045,  500,  500,  500,  500,  500,
-      500,  508,  508,  508,  508,  508,  508,  508,  508,  508,
-      509,  509,  509,  509,  509,  509,  509,  509,  509, 1041,
-      502,  502,  502,  502,  502,  502,  510,  510,  510,  510,
-      510,  510,  510,  510,  510,  511,  511,  511,  511,  511,
-
-      511,  511,  511,  511,  512,  512,  512,  512,  512,  512,
-      512,  512,  512,  513,  513,  513,  513,  513,  513,  513,
-      513,  513,  514,  514,  514,  514,  514,  514,  514,  514,
-      514,  528,  528,  528,  528,  528,  528,  528,  528,  528,
-      529,  529,  529,  529,  529,  529,  529,  529,  529,  530,
+      477,  478,  478,  478,  478,  478,  478,  478,  478,  478,
+
+      483,  484,  659,  659,  659,  659,  659,  659,  485,  487,
+      486, 1674, 1670, 1665, 1260, 1643,  488,  489,  489,  489,
+      489,  489,  489,  489,  489,  489, 1633,  577,  577,  483,
+      484,  577, 1624,  577,  577,  577, 1602,  485,  487,  486,
+      678,  678,  678, 1260,  678,  488,  678,  678,  678, 1589,
+     1575,  483,  483,  483,  483,  483,  483,  487,  487,  487,
+      487,  487,  487,  484,  484,  484,  484,  484,  484,  485,
+      485,  485,  485,  485,  485,  486,  486,  486,  486,  486,
+      486,  488,  488,  488,  488,  488,  488,  490,  490,  490,
+      490,  490,  490,  490,  490,  491,  491,  491,  491,  491,
+
+      491,  491,  491,  491,  492,  492,  492,  492,  492,  492,
+      492,  492,  492,  493,  493,  493,  493,  493,  493,  493,
+      493,  493,  495,  495,  495,  495,  495,  495,  495,  495,
+      495,  496,  496,  496,  496,  496,  496,  496,  496,  496,
+      499,  499,  499, 1574, 1572, 1552,  500,  500,  500, 1261,
+     1545,  499, 1540,  499,  499, 1510, 1509,  500, 1507,  500,
+      500,  501,  501,  501, 1502,  499,  499, 1501,  499, 1497,
+     1495, 1133,  501, 1133,  501,  501,  508,  499, 1261,  499,
+      508,  499, 1262, 1133,  508,  503,  503,  503, 1263,  508,
+     1264, 1265, 1267,  508,  499,  499,  503,  499,  503,  503,
+
+     1489, 1483, 1482, 1480, 1478,  508,  499, 1477,  499,  508,
+      499, 1262, 1133,  508, 1268,  503, 1270, 1263,  508, 1264,
+     1265, 1267,  508, 1475, 1473, 1472, 1470,  499,  499,  499,
+      499,  499,  499,  500,  500,  500,  500,  500,  500,  633,
+      633,  633, 1468, 1268,  503, 1270,  633, 1466,  501,  501,
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+      512,  512,  512,  512,  512,  512,  513,  513,  513,  513,
+
+      513,  513,  513,  513,  513,  514,  514,  514,  514,  514,
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+      515,  515,  515,  525,  564, 1461, 1459, 1455,  633, 1453,
+      525,  573,  573,  573,  573,  573,  573,  573,  573,  525,
+      529,  529,  529,  529,  529,  529,  529,  529,  529, 1431,
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+     1344,  564,  564,  564,  564,  564,  564, 1338,  525,  530,
       530,  530,  530,  530,  530,  530,  530,  530,  531,  531,
       531,  531,  531,  531,  531,  531,  531,  532,  532,  532,
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-      534,  534,  534,  534,  534,  535,  535,  535,  535,  535,
-      535,  535,  535,  535,  538,  538,  538,  538,  538,  538,
+      532,  532,  532,  532,  532,  532,  533,  533,  533,  533,
 
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+      536,  536,  536,  539,  539,  539,  539,  539,  539,  539,
       539,  539,  540,  540,  540,  540,  540,  540,  540,  540,
       540,  541,  541,  541,  541,  541,  541,  541,  541,  541,
       542,  542,  542,  542,  542,  542,  542,  542,  542,  543,
-      543,  543,  543,  543,  543,  543,  543,  543,  545,  545,
-      545,  545,  545,  545,  545,  545,  545,  546,  546,  546,
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+      544,  544,  544,  544,  544,  544,  544,  546,  546,  546,
       546,  546,  546,  546,  546,  546,  547,  547,  547,  547,
       547,  547,  547,  547,  547,  548,  548,  548,  548,  548,
+
       548,  548,  548,  548,  549,  549,  549,  549,  549,  549,
       549,  549,  549,  550,  550,  550,  550,  550,  550,  550,
-
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       554,  555,  555,  555,  555,  555,  555,  555,  555,  555,
       556,  556,  556,  556,  556,  556,  556,  556,  556,  557,
       557,  557,  557,  557,  557,  557,  557,  557,  558,  558,
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-
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-
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-
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-
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-
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-
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-
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-      716,  716,  716,  716,  716,  716,  716,  716,  718,  718,
-
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+      558,  558,  558,  558,  558,  558,  558,  559,  559,  559,
+      559,  559,  559,  559,  559,  559, 1337, 1332,  562,  563,
+      566,  566,  566,  566,  566,  566,  566,  566,  566,  567,
+
+      567,  567,  567,  567,  567,  567,  567,  567, 1331, 1325,
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+      718,  718,  718,  718, 1323, 1322,  562,  562,  562,  562,
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+      574,  574,  574,  574,  574,  575,  575,  575,  575,  575,
+
+      575,  575,  575,  575,  576,  576,  576,  576,  576,  576,
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+      655,  655,  656,  656,  656,  656,  656,  656,  656,  656,
+
+      656,  745,  745,  745,  745,  745,  745, 1288, 1286,  652,
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+      664,  664,  664,  664,  664,  664,  664,  664,  665,  665,
+      665,  665,  665,  665,  665,  665,  665,  668,  669, 1271,
+
+     1272, 1285, 1279, 1277,  670,  673,  673,  673,  673,  673,
+      673,  673,  673,  673,  715,  715,  715,  715,  715,  671,
+      715,  715,  715, 1275, 1269, 1225,  668,  669, 1271, 1272,
+      731,  731,  672,  670,  731, 1138,  731,  731,  731, 1137,
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+      669,  669,  669,  669,  669,  670,  670,  670,  670,  670,
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+      675,  675,  675,  675,  675,  675,  675,  675,  675,  676,
+
+      676,  676,  676,  676,  676,  676,  676,  676,  677,  677,
+      677,  677,  677,  677,  677,  677,  677,  679,  679,  679,
+      679,  679,  679,  679,  679,  679,  680,  680,  680,  680,
+      680,  680,  680,  680,  680,  689,  689,  689,  693,  693,
+      693,  693,  693,  693,  693,  693,  693, 1132, 1131, 1128,
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+      695,  696,  696,  696,  696,  696,  696,  696,  696,  696,
+      697,  697,  697,  697,  697,  697,  697,  697,  697,  698,
+      698,  698,  698,  698,  698,  698,  698,  698,  700,  700,
+
+      700,  700,  700,  700,  700,  700,  700,  701,  701,  701,
+      701,  701,  701,  701,  701,  701,  789,  789,  789,  789,
+      789,  789,  789,  789,  689,  692,  692, 1109, 1100,  692,
+      692, 1093, 1091,  692,  692,  692,  692,  692,  692,  692,
+      692,  692, 1273,  692,  692,  692,  692,  692,  702,  702,
+      702,  702,  702,  702,  702,  702,  702,  703,  703,  703,
+      703,  703,  703,  703,  703,  703,  706,  706,  706, 1287,
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+      705,  705,  705,  705,  705,  707, 1334, 1404, 1287,  708,
+
+     1054, 1294, 1299,  692,  692,  692,  692,  692,  692,  692,
+      692,  692,  692,  692,  692,  692,  692,  692,  692, 1050,
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+      710,  710,  710,  710,  710,  710,  710,  710, 1020, 1018,
+      707,  707,  707,  707,  707,  707,  708,  708,  708,  708,
+      708,  708,  709, 1016, 1015,  706,  711,  711,  711,  711,
+      711,  711,  711,  711,  711, 1013,  709,  709,  709,  709,
+      709,  709,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      714,  714,  714,  714,  714,  714,  714,  714,  714,  716,
+
+      716,  716,  716,  716,  716,  716,  716,  716,  717,  717,
+      717,  717,  717,  717,  717,  717,  717,  719,  719,  719,
       719,  719,  719,  719,  719,  719,  720,  720,  720,  720,
       720,  720,  720,  720,  720,  721,  721,  721,  721,  721,
       721,  721,  721,  721,  722,  722,  722,  722,  722,  722,
       722,  722,  722,  723,  723,  723,  723,  723,  723,  723,
-      723,  723,  724,  725,  725,  725,  725,  725,  725,  725,
-      725,  725,  726,  726,  726,  726,  726,  726,  726,  726,
-      727,  727,  727,  727,  727,  727,  727,  727,  727,  351,
-      346,  724,  728,  728,  728,  728,  728,  728,  728,  728,
-      728,  729,  729,  729,  729,  729,  729,  729,  729,  729,
-
-      734,  734,  734,  724,  724,  724,  724,  724,  724,  730,
-      730,  342,  327,  730,  290,  730,  730,  730,  731,  731,
-      731,  731,  731,  731,  731,  731,  731,  732,  732,  732,
-      732,  732,  732,  732,  732,  732,  738,  738,  738,  738,
-      738,  738,  738,  738,  738,  739,  739,  739,  739,  739,
-      739,  739,  739,  739,  740,  740,  740,  740,  740,  740,
-      740,  740,  740,  741,  741,  741,  741,  741,  741,  741,
-      741,  741,  742,  742,  742,  742,  742,  742,  742,  742,
-      742,  743,  743,  743,  743,  743,  743,  743,  743,  743,
-      734,  737,  737,  280,  279,  737,  737, 1085, 1085,  737,
-
-      737,  737,  737,  737,  737,  737,  737,  737, 1085, 1243,
-      737,  737,  737,  737,  737,  745,  745,  745,  745,  745,
-      745,  745,  745,  745,  746,  746,  746,  746,  746,  746,
-      746,  746,  746,  752,  752,  752, 1244, 1085, 1243,  277,
-     1245,  737,  254,  737,  747,  747,  747,  747,  747,  747,
-      747,  747,  747,  748,  748,  748,  748,  748,  748,  748,
-      748,  748,  756,  252,  756, 1244,  243,  756,  756, 1245,
-      737,  737,  737,  737,  737,  737,  737,  737,  737,  737,
-      737,  737,  737,  737,  737,  737,  749,  749,  749,  749,
-      749,  749,  749,  749,  749,  750,  750,  750,  750,  750,
-
-      750,  750,  750,  750,  755,  758,  755,  755,  759,  788,
-      788,  788,  788,  788,  788,  788,  788,  755,  760, 1246,
-     1247, 1249,  241,  752,  761,  761,  761,  761,  761,  761,
-      761,  761,  761,  230,  758,  229,  223,  759,  222,  756,
-      756,  756,  756,  756,  756,  214,  755,  760, 1246, 1247,
-     1249,  758,  758,  758,  758,  758,  758,  213,  210,  759,
-      759,  759,  759,  759,  759,  760,  760,  760,  760,  760,
-      760,  769,  769,  769,  772,  772,  772,  209,  755,  755,
-      755,  755,  755,  755,  762,  762,  762,  762,  762,  762,
-      762,  762,  762,  763,  763,  763,  763,  763,  763,  763,
-
-      763,  763,  764,  764,  764,  764,  764,  764,  764,  764,
-      764,  765,  765,  765,  765,  765,  765,  765,  765,  765,
-      766,  766,  193,  192,  766,  766,  766,  766,  766,  767,
-      767,  767,  767,  767,  767,  767,  767,  767,  768,  768,
-      768,  768,  768,  768,  768,  768,  768,  776,  776,  776,
-      779,  779,  779,  796,  796,  796,  796,  796,  796,  796,
-      796,  769,  186,  185,  772,  787,  787,  787,  787,  787,
-      787,  787,  787,  787,  789,  789,  789,  789,  789,  789,
-      789,  789,  789,  790,  790,  790,  790,  790,  790,  790,
-      790,  790,  791,  791,  791,  791,  791,  791,  791,  791,
-
-      791,  792,  792,  178,  177,  792,   71,  792,  792,  792,
-      793,  793,  793,  793,  793,  793,  793,  793,  793,  794,
-      794,  794,  794,  794,  794,  794,  794,  794,  795,  795,
-      795,  795,  795,  795,  795,  795,  795,  776,   57,   36,
-      779,  797,  797,  797,  797,  797,  797,  797,  797,  797,
-      798,  798,  798,  798,  798,  798,  798,  798,  798,  799,
-      799,  799,  799,  799,  799,  799,  799,  799,  800,  800,
-       35,   34,  800,   33,  800,  800,  800,  801,  801,  801,
-      801,  801,  801,  801,  801,  801,  802,  802,  802,  802,
-      802,  802,  802,  802,  802,  803,  803,  803,  803,  803,
-
-      803,  803,  803,  804,  804,    0,    0,  804,    0,  804,
-      804,  804,  805,  805,  805,  805,  805,  805,  805,  805,
-      805,  806,  806,  806,  806,  806,  806,  806,  806,  807,
-      807,  807,  807,  807,  807,  807,  807,  807,  808,  808,
-      808,  808,  808,  808,  808,  808,  808,  809,  809,  809,
-      809,  809,  809,  809,  809,  809,  810,  810,  819,  819,
-      810,  821,  810,  810,  810,  811,  811,  811,  811,  811,
-      811,  811,  811,  811,  812,  812,  812,  812,  812,  812,
-      812,  812,  812,  813,  813,  813,  822,    0,    0,    0,
-      821,  841,  841,  841,  841,  841,  841,    0,    0,  823,
-
-      824,  849,  849,  849,  849,  849,  849,  825, 1250,  826,
-     1001, 1001, 1001,    0,    0,  822,  891,  891,  891,  891,
-      891,  891,  821,  821,  821,  821,  821,  821,  823,  824,
-      819,  819,  819,  819,  819,  819,  825, 1250,  826,    0,
-      822,  822,  822,  822,  822,  822,    0,  823,  823,  823,
-      823,  823,  823,  827, 1006, 1006, 1006,  824,  824,  824,
-      824,  824,  824,  828,  825,  825,  825,  825,  825,  825,
-     1252,    0, 1253,  813,  826,  826,  826,  826,  826,  826,
-        0,    0,  827,    0,  830,    0,  831,    0,    0, 1011,
-     1011, 1011,  828,  829,    0,    0,    0, 1254,  829, 1252,
-
-     1001, 1253, 1268,  832, 1269, 1277,    0,  827,  827,  827,
-      827,  827,  827,  830,  833,  831,  828,  828,  828,  828,
-      828,  828,  829, 1024, 1024, 1024, 1254,  829,    0,    0,
-        0, 1268,  832, 1269, 1277,  835,  830,  830,  830,  830,
-      830,  830,    0,  833, 1006,  829,  829,  829,  829,  829,
-      829,  831,  831,  831,  831,  831,  831,  832,  832,  832,
-      832,  832,  832,  834,  835,  836, 1282,  834,  833,  833,
-      833,  833,  833,  833,  903,  903, 1307,  838,  903, 1011,
-      903,  903,  903,  837,  899,  899,  899,  899,  899,  899,
-      899,  899,  834,  839,  836, 1282,  834, 1308,  835,  835,
-
-      835,  835,  835,  835,    0, 1307,  838,    0,    0, 1040,
-     1040, 1040,  837, 1024,    0,  836,  836,  836,  836,  836,
-      836,    0,  839,    0,  840,  842, 1308,    0,  834,  834,
-      834,  834,  834,  834,  837,  837,  837,  837,  837,  837,
-      838,  838,  838,  838,  838,  838,    0,  839,  839,  839,
-      839,  839,  839,  840,  842,  843,  845, 1317, 1383, 1384,
-      912,  912,  844,  846,  912, 1385,  912,  912,  912,  848,
-        0,  840,  840,  840,  840,  840,  840,  842,  842,  842,
-      842,  842,  842,    0,  843,  845, 1317, 1383, 1384,    0,
-        0,  844,  846,    0, 1385,    0,    0,  847,  848, 1040,
-
-        0,  845,  845,  845,  845,  845,  845,  850,  843,  843,
-      843,  843,  843,  843,  844,  844,  844,  844,  844,  844,
-      846,  846,  846,  846,  846,  846,  847,  848,  848,  848,
-      848,  848,  848,  858,    0,  851,  850,  853, 1386,  878,
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-      847,  847,  847,    0,  854,  856,    0,    0,  850,  850,
-      850,  850,  850,  850,  851,  857,  853, 1386,    0, 1387,
-      852,  858,  858,  858,  858,  858,  858,  878,  878,  878,
-      878,  878,  878,  854,  856,  855,  859,    0,  853,  853,
-      853,  853,  853,  853,  857,    0,  851,  851,  851,  851,
-
-      851,  851,  852,  852,  852,  852,  852,  852,  854,  854,
-      854,  854,  854,  854,  855,  859,  856,  856,  856,  856,
-      856,  856,  857,  857,  857,  857,  857,  857,  860,  861,
-     1388,  855,  855,  855,  855,  855,  855,  866,  862,  906,
-      906,  906,  906,  906,  906,  859,  859,  859,  859,  859,
-      859,  907,  907,  907,  907,  907,  907,  860,  861, 1388,
-        0,    0,  863,  864,  865,    0,  866,  862,    0,    0,
-     1056, 1056, 1056,  860,  860,  860,  860,  860,  860,  861,
-      861,  861,  861,  861,  861,  862,  862,  862,  862,  862,
-      862,  863,  864,  865,  867,    0,  866,  866,  866,  866,
-
-      866,  866,  868,  863,  863,  863,  863,  863,  863,    0,
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-      898,    0,    0,    0,  867,  867,  867,  867,  867,  867,
-      869,  870,  872,  873,  874, 1427,  880,  880,  880,  871,
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-      869,  869,  869,  869,  869,    0,    0,  875,    0,    0,
-        0,  872,  873,  874, 1427,  870,  870,  870,  870,  870,
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-
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-        0,    0,    0,  877,  880,  880,  880,  880,  880,  880,
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-      881,  881,  881,  881,  881,  881,    0,  884,  882,  882,
-      882,  882,  882,  882,  944,  944,    0,    0,  944,  889,
-
-      944,  944,  944,  883,  885,  883, 1428,  887,    0,    0,
-        0,    0,  884,  884,  884,  884,  884,  884,  886,  888,
-        0,  888,  883,  883,  883,  883,  883,  883,  889,  886,
-      887,  887,  887,  887,  887,  887,  885,  885,  885,  885,
-      885,  885,    0,    0,    0,    0,    0,  886,  888,  890,
-      888,  892,  919,  919,  919,  919,  919,  919,  886, 1430,
-      894, 1432, 1433,  916,  889,  889,  889,  889,  889,  889,
-      888,  888,  888,  888,  888,  888,    0,    0,  890,    0,
-      892,  886,  886,  886,  886,  886,  886,  893, 1430,  894,
-     1432, 1433,  916,    0,  895,  897,    0,  890,  890,  890,
-
-      890,  890,  890,  892,  892,  892,  892,  892,  892,  896,
-     1435, 1437, 1438,  896,    0,    0,  893,  894,  894,  894,
-      894,  894,  894,  895,  897,  916,  916,  916,  916,  916,
-      916, 1439,  893,  893,  893,  893,  893,  893,  896, 1435,
-     1437, 1438,  896, 1082, 1082, 1082,  895,  895,  895,  895,
-      895,  895,    0,  897,  897,  897,  897,  897,  897,    0,
-     1439,  896,  896,  896,  896,  896,  896,  900,  900,  900,
-      900,  900,  900,  900,  900,  900,  901,  901,  901,  901,
-      901,  901,  901,  901,  901,  902,  902,  902,  902,  902,
-      902,  902,  902,  902,  904,  904,  904,  904,  904,  904,
-
-      904,  904,  904,  905,  905,  905,  905,  905,  905,  905,
-      905,  905,  911,  911,  911,  911,  911,  911,  911,  911,
-      911,  913,  914,  915,    0, 1458,  917,  920,  920,  920,
-      920,  920,  920, 1082,    0,    0,  925,    0,  918,  923,
-      923,  923,  923,  923,  923,  923,  923,  923,    0,  929,
-      913,  914,  915,  929, 1458,  917,    0,    0,    0,    0,
-      925,  913,  913,  913,  913,  913,  913,  918,    0,    0,
-        0,  915,  915,  915,  915,  915,  915,  917,  917,  917,
-      917,  917,  917,  914,  914,  914,  914,  914,  914,  925,
-      927, 1459, 1460,  918,  918,  918,  918,  918,  918,  924,
-
-      924,  924,  924,  924,  924,  924,  924,  926,    0,    0,
-      925,  925,  925,  925,  925,  925,  926,  927,  928, 1472,
-     1459, 1460, 1478,  929,  929,  929,  929,  929,  929,    0,
-      930,  952,  952,    0, 1479,  952,  931,  952,  952,  952,
-        0,    0,  932,    0, 1511,  926,  927,  928, 1472,  962,
-      962, 1478,    0,  962,  934,  962,  962,  962,  930,    0,
-      935,    0,  932, 1479,  927,  927,  927,  927,  927,  927,
-      933,  935,  931, 1511, 1512,    0,  928,  936,    0,    0,
-        0,  926,  926,  926,  926,  926,  926,  930,  937,    0,
-      934,  932,  928,  928,  928,  928,  928,  928,  933,    0,
-
-      935,    0,    0, 1512,  930,  930,  930,  930,  930,  930,
-      931,  931,  931,  931,  931,  931,  932,  932,  932,  932,
-      932,  932,    0,    0,    0,    0,    0,  933,  934,  934,
-      934,  934,  934,  934,  935,  935,  935,  935,  935,  935,
-        0,    0,    0,    0,  933,  933,  933,  933,  933,  933,
-        0,  936,  936,  936,  936,  936,  936,    0,    0,    0,
-        0,    0,  937,  937,  937,  937,  937,  937,  938,  938,
-      938,  938,  938,  938,  938,  938,  938,  939,  939,  939,
-      939,  939,  939,  939,  939,  939,  940,  940,  940,  940,
-      940,  940,  940,  940,  941,  941,  941,  941,  941,  941,
-
-      941,  941,  941,  942,  942,  942,  942,  942,  942,  942,
-      942,  942,  943,  943,  943,  943,  943,  943,  943,  943,
-      943,  945,  945,  945,  945,  945,  945,  945,  945,  945,
-      946,  946,  946,  946,  946,  946,  946,  946,  946,  947,
-      947,  947,  947,  947,  947,  947,  947,  947,  948,  948,
-      948,  948,  948,  948,  948,  948,  949,  949,  949,  949,
-      949,  949,  949,  949,  949,  950,  950,  950,  950,  950,
-      950,  950,  950,  950,  951,  951,  951,  951,  951,  951,
-      951,  951,  951,  953,  953,  953,  953,  953,  953,  953,
-      953,  953,  954,  954,  954,  954,  954,  954,  954,  954,
-
-      954,  955,  956,  957,  957,  957,  957,  957,  957,  957,
-      957,  957,  958,  958,  958,  958,  958,  958,  958,  958,
-      959,  959,  959,  959,  959,  959,  959,  959,  959,    0,
-      955,  956,  960,  960,  960,  960,  960,  960,  960,  960,
-      960,  965,  965,  965,  965,  965,  965,  955,  955,  955,
-      955,  955,  955,    0,    0,    0,  956,  956,  956,  956,
-      956,  956,  961,  961,  961,  961,  961,  961,  961,  961,
-      961,  963,  963,  963,  963,  963,  963,  963,  963,  963,
-      964,  964,  964,  964,  964,  964,  964,  964,  964,  966,
-      966,  966,  966,  966,  966,  967,  967,  967,  967,  967,
-
-      967,  967,  967,  967, 1014, 1014, 1014, 1014, 1014, 1014,
-     1014, 1014, 1014, 1015, 1015, 1015, 1015, 1015, 1015, 1015,
-     1015, 1016, 1016, 1016, 1016, 1016, 1016, 1016, 1016, 1016,
-     1017, 1017, 1017, 1017, 1017, 1017, 1017, 1017, 1017, 1018,
-     1018, 1018, 1018, 1018, 1018, 1018, 1018, 1018, 1019, 1019,
-        0,    0, 1019,    0, 1019, 1019, 1019, 1020, 1020, 1020,
-     1020, 1020, 1020, 1020, 1020, 1020, 1021, 1021, 1021, 1021,
-     1021, 1021, 1021, 1021, 1021, 1022, 1022, 1022, 1022, 1022,
-     1022, 1022, 1022, 1023, 1023, 1029,    0, 1023,    0, 1023,
-     1023, 1023, 1030, 1032, 1524, 1537,    0, 1031, 1035, 1035,
-
-     1035, 1035, 1035, 1035, 1036, 1036, 1036, 1036, 1036, 1036,
-        0, 1051, 1051, 1538, 1029, 1051,    0, 1051, 1051, 1051,
-        0, 1030, 1032, 1524, 1537, 1034, 1031, 1033, 1047, 1047,
-     1047, 1047, 1047, 1047, 1047, 1047, 1029, 1029, 1029, 1029,
-     1029, 1029, 1538,    0, 1030, 1030, 1030, 1030, 1030, 1030,
-     1031, 1031, 1031, 1031, 1031, 1031, 1033, 1032, 1032, 1032,
-     1032, 1032, 1032, 1034, 1034, 1034, 1034, 1034, 1034,    0,
-     1098, 1098, 1098, 1033, 1033, 1033, 1033, 1033, 1033, 1038,
-     1038, 1038, 1038, 1038, 1038, 1038, 1038, 1038, 1046, 1046,
-     1046, 1046, 1046, 1046, 1046, 1046, 1046, 1048, 1048, 1048,
-
-     1048, 1048, 1048, 1048, 1048, 1048, 1049, 1049, 1049, 1049,
-     1049, 1049, 1049, 1049, 1049, 1050, 1050, 1050, 1050, 1050,
-     1050, 1050, 1050, 1050, 1052, 1052, 1052, 1052, 1052, 1052,
-     1052, 1052, 1052, 1053, 1053, 1053, 1053, 1053, 1053, 1053,
-     1053, 1053, 1054, 1054, 1054, 1054, 1054, 1054, 1054, 1054,
-     1055, 1055, 1058,    0, 1055,    0, 1055, 1055, 1055, 1060,
-     1098,    0, 1539, 1066, 1059, 1061, 1061, 1061, 1061, 1061,
-     1061, 1062, 1062, 1062, 1062, 1062, 1062,    0,    0,    0,
-        0, 1058, 1065, 1065, 1065, 1065, 1065, 1065, 1065, 1065,
-     1065, 1539, 1066, 1059,    0,    0,    0, 1060, 1060, 1060,
-
-     1060, 1060, 1060,    0, 1058, 1058, 1058, 1058, 1058, 1058,
-     1059, 1059, 1059, 1059, 1059, 1059, 1066, 1066, 1066, 1066,
-     1066, 1066, 1067, 1067, 1067, 1067, 1067, 1067, 1068, 1068,
-     1068, 1068, 1068, 1068, 1069, 1069, 1069, 1069, 1069, 1069,
-     1069, 1069, 1069, 1072, 1072, 1072, 1072, 1072, 1072, 1072,
-     1072, 1072, 1073, 1073, 1073, 1073, 1073, 1073, 1073, 1073,
-     1074, 1074, 1074, 1074, 1074, 1074, 1074, 1074, 1074, 1075,
-     1075, 1075, 1075, 1075, 1075, 1075, 1075, 1075, 1076, 1076,
-     1076, 1076, 1076, 1076, 1076, 1076, 1076, 1077, 1077, 1088,
-     1088, 1077,    0, 1077, 1077, 1077, 1078, 1078, 1078, 1078,
-
-     1078, 1078, 1078, 1078, 1078, 1079, 1079, 1079, 1079, 1079,
-     1079, 1079, 1079, 1079, 1080, 1080, 1080, 1080, 1080, 1080,
-     1080, 1080, 1081, 1081, 1091, 1092, 1081, 1109, 1081, 1081,
-     1081, 1094, 1094, 1094, 1094, 1094, 1094, 1095, 1095, 1095,
-     1095, 1095, 1095, 1097, 1097, 1097, 1097, 1097, 1097, 1097,
-     1097, 1097, 1093, 1091, 1092, 1102, 1102, 1102, 1115, 1540,
-        0, 1088, 1088, 1088, 1088, 1088, 1088, 1110,    0, 1119,
-     1119, 1119,    0,    0,    0, 1091, 1091, 1091, 1091, 1091,
-     1091, 1093, 1133, 1133, 1133, 1133, 1133, 1133, 1540, 1092,
-     1092, 1092, 1092, 1092, 1092, 1265, 1265, 1265,    0, 1093,
-
-     1093, 1093, 1093, 1093, 1093, 1116, 1542, 1546, 1547, 1549,
-        0, 1109, 1109, 1109, 1109, 1109, 1109, 1111, 1111, 1111,
-     1111, 1111, 1111, 1111, 1111, 1111, 1114, 1114, 1114, 1114,
-     1114, 1114, 1114, 1114, 1114, 1542, 1546, 1547, 1549, 1115,
-     1115, 1115, 1115, 1115, 1115, 1102,    0,    0,    0,    0,
-        0, 1110, 1110, 1110, 1110, 1110, 1110, 1112, 1112, 1119,
-        0, 1112, 1112,    0,    0, 1112, 1112, 1112, 1112, 1112,
-     1112, 1112, 1112, 1112, 1127, 1128, 1112, 1112, 1112, 1112,
-     1112,    0,    0,    0, 1130, 1265, 1116, 1116, 1116, 1116,
-     1116, 1116, 1117, 1117, 1117, 1117, 1117, 1117, 1117, 1117,
-
-     1117,    0,    0, 1127, 1128,    0,    0, 1112,    0, 1112,
-     1259, 1259, 1259, 1130, 1259,    0, 1128, 1128, 1128, 1128,
-     1128, 1128, 1127, 1127, 1127, 1127, 1127, 1127,    0, 1129,
-     1130, 1130, 1130, 1130, 1130, 1130, 1112, 1112, 1112, 1112,
-     1112, 1112, 1112, 1112, 1112, 1112, 1112, 1112, 1112, 1112,
-     1112, 1112, 1113, 1113, 1131, 1550, 1113, 1113, 1129,    0,
-     1113, 1113, 1113, 1113, 1113, 1113, 1113, 1113, 1113, 1132,
-        0, 1113, 1113, 1113, 1113, 1113, 1144, 1144, 1144, 1144,
-     1144, 1144,    0, 1131, 1550, 1548, 1129, 1129, 1129, 1129,
-     1129, 1129,    0,    0,    0, 1134,    0, 1548, 1132, 1134,
-
-     1259, 1135, 1113,    0, 1113,    0, 1131, 1131, 1131, 1131,
-     1131, 1131,    0,    0, 1548,    0,    0, 1132, 1132, 1132,
-     1132, 1132, 1132, 1136, 1134, 1137, 1548,    0, 1134,    0,
-     1135, 1113, 1113, 1113, 1113, 1113, 1113, 1113, 1113, 1113,
-     1113, 1113, 1113, 1113, 1113, 1113, 1113,    0, 1138, 1139,
-     1140,    0, 1136,    0, 1137,    0, 1134, 1134, 1134, 1134,
-     1134, 1134, 1135, 1135, 1135, 1135, 1135, 1135, 1279, 1279,
-     1279, 1137, 1137, 1137, 1137, 1137, 1137, 1138, 1139, 1140,
-     1136, 1136, 1136, 1136, 1136, 1136, 1150, 1150, 1150, 1150,
-     1150, 1150, 1141, 1142, 1138, 1138, 1138, 1138, 1138, 1138,
-
-     1143, 1147, 1148, 1139, 1139, 1139, 1139, 1139, 1139, 1154,
-     1154, 1154, 1154, 1154, 1154, 1140, 1140, 1140, 1140, 1140,
-     1140, 1141, 1142,    0,    0, 1145,    0, 1149, 1551, 1143,
-     1147, 1148,    0, 1141, 1141, 1141, 1141, 1141, 1141, 1142,
-     1142, 1142, 1142, 1142, 1142,    0,    0,    0, 1143, 1143,
-     1143, 1143, 1143, 1143, 1145, 1146, 1149, 1551, 1279, 1152,
-     1148, 1148, 1148, 1148, 1148, 1148, 1147, 1147, 1147, 1147,
-     1147, 1147,    0, 1145, 1145, 1145, 1145, 1145, 1145, 1151,
-     1155,    0,    0,    0, 1146,    0, 1153, 1552, 1152, 1149,
-     1149, 1149, 1149, 1149, 1149,    0,    0, 1160, 1160, 1160,
-
-     1146, 1146, 1146, 1146, 1146, 1146, 1156,    0, 1151, 1152,
-     1152, 1152, 1152, 1152, 1152, 1153, 1552,    0, 1155, 1155,
-     1155, 1155, 1155, 1155, 1157, 1151, 1151, 1151, 1151, 1151,
-     1151, 1158, 1553, 1545, 1161, 1156, 1545,    0, 1153, 1153,
-     1153, 1153, 1153, 1153, 1159, 1159, 1159, 1159, 1159, 1159,
-        0,    0,    0, 1157, 1156, 1156, 1156, 1156, 1156, 1156,
-     1158, 1553, 1545,    0,    0, 1545, 1157, 1157, 1157, 1157,
-     1157, 1157, 1161, 1161, 1161, 1161, 1161, 1161, 1163, 1158,
-     1158, 1158, 1158, 1158, 1158, 1160, 1160, 1160, 1160, 1160,
-     1160, 1162, 1162, 1162, 1162, 1162, 1162, 1287, 1287, 1287,
-
-        0, 1164, 1165, 1554, 1175, 1555, 1167, 1163, 1166, 1169,
-     1169, 1169, 1169, 1169, 1169, 1168, 1172, 1172, 1172,    0,
-     1299, 1299, 1299,    0, 1163, 1163, 1163, 1163, 1163, 1163,
-     1164, 1165, 1554, 1175, 1555, 1167,    0, 1166,    0,    0,
-     1170, 1313, 1313, 1313, 1168, 1175, 1175, 1175, 1175, 1175,
-     1175, 1164, 1164, 1164, 1164, 1164, 1164, 1167, 1167, 1167,
-     1167, 1167, 1167, 1165, 1165, 1165, 1165, 1165, 1165, 1170,
-     1166, 1166, 1166, 1166, 1166, 1166, 1168, 1168, 1168, 1168,
-     1168, 1168, 1171, 1173, 1583, 1584, 1189, 1287, 1170, 1170,
-     1170, 1170, 1170, 1170, 1174, 1177, 1177, 1177, 1177, 1177,
-
-     1177, 1178,    0,    0, 1172, 1172, 1172, 1172, 1172, 1172,
-     1299, 1171, 1173, 1583, 1584, 1189, 1176, 1205, 1205, 1205,
-     1205, 1205, 1205, 1174,    0, 1179, 1319, 1319, 1319,    0,
-     1178, 1313, 1180, 1189, 1189, 1189, 1189, 1189, 1189, 1171,
-     1171, 1171, 1171, 1171, 1171, 1176,    0,    0, 1173, 1173,
-     1173, 1173, 1173, 1173, 1179, 1174, 1174, 1174, 1174, 1174,
-     1174, 1180, 1178, 1178, 1178, 1178, 1178, 1178,    0,    0,
-        0, 1176, 1176, 1176, 1176, 1176, 1176, 1181, 1179, 1179,
-     1179, 1179, 1179, 1179, 1182, 1183, 1585,    0, 1588, 1590,
-     1592, 1184,    0, 1188, 1188, 1188,    0, 1180, 1180, 1180,
-
-     1180, 1180, 1180,    0,    0,    0, 1181,    0,    0, 1185,
-     1593, 1594,    0, 1182, 1183, 1585, 1319, 1588, 1590, 1592,
-     1184, 1187, 1187, 1187, 1187, 1187, 1187, 1187, 1187, 1187,
-        0, 1595, 1181, 1181, 1181, 1181, 1181, 1181, 1185, 1593,
-     1594, 1190, 1183, 1183, 1183, 1183, 1183, 1183, 1182, 1182,
-     1182, 1182, 1182, 1182, 1184, 1184, 1184, 1184, 1184, 1184,
-     1595,    0,    0,    0, 1192,    0, 1596, 1453, 1453, 1453,
-     1190, 1453, 1185, 1185, 1185, 1185, 1185, 1185, 1186, 1186,
-     1186, 1188, 1188, 1188, 1188, 1188, 1188, 1190, 1190, 1190,
-     1190, 1190, 1190, 1192, 1193, 1596,    0,    0,    0,    0,
-
-     1186,    0, 1600, 1186, 1186, 1191, 1536,    0, 1194,    0,
-     1536, 1536, 1196, 1601, 1186, 1186, 1186, 1255, 1255, 1255,
-     1186,    0,    0, 1193, 1255, 1192, 1192, 1192, 1192, 1192,
-     1192, 1600, 1186, 1186, 1191, 1536, 1195, 1194, 1197, 1536,
-     1536, 1196, 1601, 1186, 1186, 1186,    0,    0,    0, 1186,
-     1191, 1191, 1191, 1191, 1191, 1191,    0, 1453,    0, 1193,
-     1193, 1193, 1193, 1193, 1193, 1195,    0, 1197, 1186, 1194,
-     1194, 1194, 1194, 1194, 1194, 1196, 1196, 1196, 1196, 1196,
-     1196, 1198, 1200, 1195, 1195, 1195, 1195, 1195, 1195, 1199,
-     1197, 1197, 1197, 1197, 1197, 1197, 1201, 1207, 1207, 1207,
-
-     1207, 1207, 1207, 1202, 1208, 1203,    0, 1255,    0,    0,
-     1198, 1200, 1216, 1216, 1216, 1216, 1216, 1216, 1199,    0,
-        0,    0,    0,    0, 1204, 1201, 1198, 1198, 1198, 1198,
-     1198, 1198, 1202, 1206, 1203, 1199, 1199, 1199, 1199, 1199,
-     1199, 1208, 1208, 1208, 1208, 1208, 1208, 1200, 1200, 1200,
-     1200, 1200, 1200, 1204,    0, 1201, 1201, 1201, 1201, 1201,
-     1201, 1211, 1206, 1209, 1202, 1202, 1202, 1202, 1202, 1202,
-     1203, 1203, 1203, 1203, 1203, 1203, 1217,    0,    0,    0,
-     1217, 1204, 1204, 1204, 1204, 1204, 1204, 1212, 1602, 1606,
-     1211,    0, 1613,    0, 1206, 1206, 1206, 1206, 1206, 1206,
-
-     1209, 1209, 1209, 1209, 1209, 1209, 1210, 1210, 1210, 1210,
-     1210, 1210, 1210, 1210, 1210, 1213, 1212, 1602, 1606,    0,
-     1215, 1613, 1211, 1211, 1211, 1211, 1211, 1211, 1214, 1212,
-     1212, 1212, 1212, 1212, 1212, 1218,    0,    0,    0, 1218,
-        0, 1220,    0,    0, 1213, 1220, 1620, 1620, 1620, 1215,
-     1217, 1217, 1217, 1217, 1217, 1217, 1213, 1213, 1213, 1213,
-     1213, 1213, 1218, 1629,    0, 1220, 1214, 1214, 1214, 1214,
-     1214, 1214, 1215, 1215, 1215, 1215, 1215, 1215, 1219,    0,
-        0,    0, 1219,    0,    0, 1222, 1257, 1257, 1257, 1222,
-        0, 1218, 1629, 1257, 1220, 1224, 1587, 1228, 1630, 1224,
-
-     1634, 1587, 1658,    0, 1229,    0, 1219,    0, 1224, 1218,
-     1218, 1218, 1218, 1218, 1218, 1220, 1220, 1220, 1220, 1220,
-     1220, 1222, 1223,    0,    0, 1587, 1223, 1630, 1225, 1634,
-     1587, 1658, 1225,    0, 1226, 1219, 1620, 1224, 1226, 1223,
-        0,    0,    0,    0,    0, 1227,    0,    0, 1225, 1227,
-     1659, 1226, 1219, 1219, 1219, 1219, 1219, 1219, 1227, 1222,
-     1222, 1222, 1222, 1222, 1222, 1231, 1669,    0, 1223, 1224,
-     1224, 1224, 1224, 1224, 1224, 1232, 1257, 1225,    0, 1659,
-     1226, 1228, 1228, 1228, 1228, 1228, 1228, 1227, 1229, 1229,
-     1229, 1229, 1229, 1229,    0, 1669, 1223, 1223, 1223, 1223,
-
-     1223, 1223, 1225, 1225, 1225, 1225, 1225, 1225, 1226, 1226,
-     1226, 1226, 1226, 1226,    0,    0, 1680,    0,    0, 1227,
-     1227, 1227, 1227, 1227, 1227, 1230, 1230, 1230, 1230, 1230,
-     1230, 1230, 1230, 1230, 1233, 1233, 1233, 1233, 1233, 1233,
-     1233, 1233, 1233, 1234, 1235, 1680, 1231, 1231, 1231, 1231,
-     1231, 1231, 1236,    0,    0,    0, 1232, 1232, 1232, 1232,
-     1232, 1232, 1237, 1238, 1238, 1238, 1238, 1238, 1238, 1238,
-     1238, 1238,    0, 1235, 1293, 1293, 1293, 1293, 1293, 1293,
-        0, 1234, 1234, 1234, 1234, 1234, 1234,    0, 1271, 1236,
-     1236, 1236, 1236, 1236, 1236,    0, 1934, 1934, 1934, 1237,
-
-     1237, 1237, 1237, 1237, 1237, 1235, 1235, 1235, 1235, 1235,
-     1235, 1261, 1261,    0,    0, 1261, 1261, 1271, 1272, 1261,
-     1261, 1261, 1261, 1261, 1261, 1261, 1261, 1261, 1275, 1681,
-     1261, 1261, 1261, 1261, 1261, 1263, 1263, 1263, 1263, 1263,
-     1263, 1263, 1263, 1263, 1273, 1273, 1273, 1272,    0, 1273,
-        0, 1271, 1271, 1271, 1271, 1271, 1271, 1273, 1681, 1682,
-     1683, 1261,    0, 1261,    0,    0, 1275, 1275, 1275, 1275,
-     1275, 1275, 1411, 1411, 1411, 1411, 1411, 1411,    0, 1274,
-     1272, 1272, 1272, 1272, 1272, 1272, 1934,    0, 1682, 1683,
-     1261, 1261, 1261, 1261, 1261, 1261, 1261, 1261, 1261, 1261,
-
-     1261, 1261, 1261, 1261, 1261, 1261, 1262, 1262, 1274, 1276,
-     1262, 1262, 1291,    0, 1262, 1262, 1262, 1262, 1262, 1262,
-     1262, 1262, 1262,    0,    0, 1262, 1262, 1262, 1262, 1262,
-        0,    0, 1273, 1273, 1273, 1273, 1273, 1273, 1276, 1684,
-     1685, 1368, 1368, 1368, 1274, 1274, 1274, 1274, 1274, 1274,
-     1291, 1291, 1291, 1291, 1291, 1291, 1262,    0, 1262, 1285,
-     1285, 1285, 1285, 1285, 1285, 1285, 1285, 1285, 1684, 1685,
-        0,    0, 1276, 1276, 1276, 1276, 1276, 1276, 1290, 1368,
-        0,    0, 1943, 1943, 1943, 1262, 1262, 1262, 1262, 1262,
-     1262, 1262, 1262, 1262, 1262, 1262, 1262, 1262, 1262, 1262,
-
-     1262, 1283, 1283, 1292,    0, 1283, 1283, 1290, 1368, 1283,
-     1283, 1283, 1283, 1283, 1283, 1283, 1283, 1283, 1686, 1687,
-     1283, 1283, 1283, 1283, 1283, 1426, 1426, 1426, 1426, 1426,
-     1426, 1368, 1292, 1328, 1328, 1328, 1412,    0,    0,    0,
-     1290, 1290, 1290, 1290, 1290, 1290,    0, 1686, 1687,    0,
-        0, 1283,    0, 1283, 1297, 1297, 1297, 1297, 1297, 1297,
-     1297, 1297, 1297,    0,    0,    0, 1292, 1292, 1292, 1292,
-     1292, 1292, 1943, 1309, 1412, 1412, 1412, 1412, 1412, 1412,
-     1283, 1283, 1283, 1283, 1283, 1283, 1283, 1283, 1283, 1283,
-     1283, 1283, 1283, 1283, 1283, 1283, 1284, 1284, 1310, 1311,
-
-     1284, 1284, 1309,    0, 1284, 1284, 1284, 1284, 1284, 1284,
-     1284, 1284, 1284,    0,    0, 1284, 1284, 1284, 1284, 1284,
-        0, 1328, 1328, 1328, 1328, 1328, 1328, 1310, 1311,    0,
-     1331, 1331, 1331, 1688,    0,    0, 1309, 1309, 1309, 1309,
-     1309, 1309, 1332, 1332, 1332, 1689, 1284,    0, 1284, 1569,
-     1569, 1569, 1569, 1569, 1569,    0, 1311, 1311, 1311, 1311,
-     1311, 1311, 1688, 1310, 1310, 1310, 1310, 1310, 1310, 1329,
-     1329, 1329,    0, 1418, 1689, 1284, 1284, 1284, 1284, 1284,
-     1284, 1284, 1284, 1284, 1284, 1284, 1284, 1284, 1284, 1284,
-     1284, 1295, 1295,    0,    0, 1295, 1295,    0,    0, 1295,
-
-     1295, 1295, 1295, 1295, 1295, 1295, 1295, 1295, 1690, 1418,
-     1295, 1295, 1295, 1295, 1295, 1691, 1692, 1329, 1331, 1331,
-     1331, 1331, 1331, 1331, 1572, 1572, 1572, 1572, 1572, 1572,
-     1332, 1332, 1332, 1332, 1332, 1332,    0, 1690, 1336, 1336,
-     1336, 1295,    0, 1295, 1691, 1692, 1329, 1418, 1418, 1418,
-     1418, 1418, 1418, 1334, 1334, 1334,    0, 1329, 1329, 1329,
-     1329, 1329, 1329, 1336, 1330, 1330, 1330,    0,    0,    0,
-     1295, 1295, 1295, 1295, 1295, 1295, 1295, 1295, 1295, 1295,
-     1295, 1295, 1295, 1295, 1295, 1295, 1296, 1296, 1330, 1334,
-     1296, 1296, 1336, 1693, 1296, 1296, 1296, 1296, 1296, 1296,
-
-     1296, 1296, 1296,    0,    0, 1296, 1296, 1296, 1296, 1296,
-     1694, 1333, 1333, 1333,    0,    0,    0, 1330, 1334, 1335,
-     1335, 1335, 1693, 1970, 1970, 1970, 1336, 1336, 1336, 1336,
-     1336, 1336, 1338, 1338, 1338,    0, 1296, 1970, 1296, 1694,
-        0, 1334, 1334, 1334, 1334, 1334, 1334, 1337, 1337, 1337,
-        0,    0, 1330, 1330, 1330, 1330, 1330, 1330, 1333,    0,
-        0, 1335, 1339, 1339, 1339, 1296, 1296, 1296, 1296, 1296,
-     1296, 1296, 1296, 1296, 1296, 1296, 1296, 1296, 1296, 1296,
-     1296,    0, 1340, 1340, 1340,    0,    0, 1333, 1337, 1339,
-     1335, 1341, 1341, 1341,    0,    0,    0,    0,    0, 1333,
-
-     1333, 1333, 1333, 1333, 1333,    0,    0, 1335, 1335, 1335,
-     1335, 1335, 1335, 1970, 1517, 1517, 1517, 1337, 1339, 1340,
-     1338, 1338, 1338, 1338, 1338, 1338, 1344, 1344, 1344, 1517,
-        0, 1341, 1342, 1342, 1342, 1337, 1337, 1337, 1337, 1337,
-     1337, 1343, 1343, 1343,    0,    0,    0, 1695, 1340, 1696,
-     1339, 1339, 1339, 1339, 1339, 1339, 1697, 1344, 1698, 1342,
-     1341, 1699, 1443, 1443, 1443, 1345, 1345, 1345, 1343, 1443,
-     1340, 1340, 1340, 1340, 1340, 1340, 1695,    0, 1696, 1341,
-     1341, 1341, 1341, 1341, 1341, 1697, 1344, 1698, 1342,    0,
-     1699, 1448, 1448, 1448, 1346, 1346, 1346, 1343, 1448,    0,
-
-        0, 1349, 1349, 1349, 1517,    0, 1345, 1347, 1347, 1347,
-        0, 1486, 1486, 1486, 1344, 1344, 1344, 1344, 1344, 1344,
-     1342, 1342, 1342, 1342, 1342, 1342, 1348, 1348, 1348, 1343,
-     1343, 1343, 1343, 1343, 1343, 1345, 1346, 1700, 1347, 1350,
-     1350, 1350, 1701, 1702, 1724, 1352, 1352, 1352,    0, 1486,
-     1348, 1349, 1443, 1345, 1345, 1345, 1345, 1345, 1345, 1351,
-     1351, 1351,    0,    0,    0, 1346, 1700, 1347, 1355, 1355,
-     1355, 1701, 1702, 1724, 1352, 1353, 1353, 1353, 1486, 1348,
-        0, 1448, 1346, 1346, 1346, 1346, 1346, 1346,    0, 1349,
-     1349, 1349, 1349, 1349, 1349, 1347, 1347, 1347, 1347, 1347,
-
-     1347, 1486,    0, 1352, 1356, 1356, 1356,    0,    0, 1351,
-     1726, 1727, 1728, 1353, 1348, 1348, 1348, 1348, 1348, 1348,
-        0,    0,    0,    0, 1357, 1357, 1357, 1350, 1350, 1350,
-     1350, 1350, 1350, 1352, 1352, 1352, 1352, 1352, 1352, 1726,
-     1727, 1728, 1353, 1354, 1354, 1354, 1356, 1351, 1351, 1351,
-     1351, 1351, 1351, 1357, 1729,    0, 1355, 1355, 1355, 1355,
-     1355, 1355, 1357, 1353, 1353, 1353, 1353, 1353, 1353, 1730,
-     1354, 1360, 1360, 1360,    0, 1356,    0,    0, 1359, 1359,
-     1359,    0, 1357, 1729, 1361, 1361, 1361, 1731, 1732,    0,
-        0, 1357, 1356, 1356, 1356, 1356, 1356, 1356, 1730, 1354,
-
-     1358, 1358, 1358, 1358, 1358, 1358, 1358, 1358, 1358, 1359,
-     1362, 1362, 1362,    0, 1357, 1733, 1731, 1732, 1363, 1363,
-     1363,    0,    0,    0, 1361, 1362, 1734,    0, 1364, 1364,
-     1364, 1354, 1354, 1354, 1354, 1354, 1354,    0, 1359,    0,
-        0, 1365, 1365, 1365, 1733,    0,    0,    0,    0, 1363,
-     1366, 1366, 1366, 1361,    0, 1734, 1370, 1370, 1370, 1360,
-     1360, 1360, 1360, 1360, 1360, 1364, 1359, 1359, 1359, 1359,
-     1359, 1359, 1361, 1361, 1361, 1361, 1361, 1361, 1363,    0,
-     1367, 1367, 1367, 1365, 1369, 1369, 1369, 1369, 1369, 1369,
-     1369, 1369, 1369,    0, 1364, 1735, 1370,    0, 1362, 1362,
-
-     1362, 1362, 1362, 1362,    0,    0, 1363, 1363, 1363, 1363,
-     1363, 1363, 1365, 1371, 1371, 1371, 1364, 1364, 1364, 1364,
-     1364, 1364, 1367,    0, 1735, 1370, 1372, 1372, 1372, 1365,
-     1365, 1365, 1365, 1365, 1365, 1373, 1373, 1373, 1366, 1366,
-     1366, 1366, 1366, 1366, 1370, 1370, 1370, 1370, 1370, 1370,
-     1736, 1367, 1374, 1374, 1374, 1737, 1738,    0, 1376, 1376,
-     1376, 1744,    0, 1747, 1375, 1375, 1375,    0, 1367, 1367,
-     1367, 1367, 1367, 1367, 1379, 1379, 1379,    0,    0, 1736,
-     1377, 1377, 1377, 1376, 1737, 1738, 1378, 1378, 1378,    0,
-     1744, 1375, 1747, 1374, 1380, 1380, 1380,    0,    0,    0,
-
-     1763, 1371, 1371, 1371, 1371, 1371, 1371, 1377, 1764, 1378,
-     1379,    0, 1376,    0, 1372, 1372, 1372, 1372, 1372, 1372,
-     1375,    0, 1374, 1373, 1373, 1373, 1373, 1373, 1373, 1763,
-     1767, 1380, 1394, 1394, 1394,    0, 1377, 1764, 1378, 1379,
-     1374, 1374, 1374, 1374, 1374, 1374, 1376, 1376, 1376, 1376,
-     1376, 1376, 1375, 1375, 1375, 1375, 1375, 1375,    0, 1767,
-     1380,    0, 1379, 1379, 1379, 1379, 1379, 1379, 1377, 1377,
-     1377, 1377, 1377, 1377, 1378, 1378, 1378, 1378, 1378, 1378,
-        0,    0, 1380, 1380, 1380, 1380, 1380, 1380, 1381, 1381,
-     1381, 1390, 1390, 1390, 1390, 1390, 1390, 1390, 1390, 1390,
-
-     1392, 1392, 1392, 1392, 1392, 1392, 1392, 1392, 1392, 1393,
-     1393, 1393, 1462,    0, 1570,    0, 1784, 1785, 1793, 1799,
-     1394, 1394, 1394, 1394, 1394, 1394,    0, 1800,    0, 1801,
-     1381, 1463, 1463, 1463,    0,    0, 1463, 1806, 1808, 1393,
-     1396, 1396, 1396, 1570, 1463, 1784, 1785, 1793, 1799,    0,
-     1462, 1462, 1462, 1462, 1462, 1462, 1800, 1463, 1801, 1381,
-     1570, 1570, 1570, 1570, 1570, 1570, 1806, 1808, 1393,    0,
-        0, 1395, 1395, 1395,    0,    0, 1381, 1381, 1381, 1381,
-     1381, 1381, 1391, 1391, 1391,    0, 1463,    0, 1397, 1397,
-     1397,    0,    0, 1810, 1398, 1398, 1398, 1393, 1393, 1393,
-
-     1393, 1393, 1393, 1399, 1399, 1399, 1811, 1391, 1391, 1391,
-     1391, 1391, 1395, 1391, 1397, 1391, 1401, 1401, 1401, 1812,
-     1391, 1463, 1810, 1391, 1391, 1813, 1399, 1391, 1396, 1396,
-     1396, 1396, 1396, 1396,    0, 1811, 1391, 1391, 1391, 1391,
-     1391, 1395, 1391, 1397, 1391, 1400, 1400, 1400, 1812, 1391,
-        0,    0, 1391, 1391, 1813, 1399, 1391,    0,    0, 1395,
-     1395, 1395, 1395, 1395, 1395,    0,    0,    0, 1400, 1791,
-     1791, 1791, 1391, 1402, 1402, 1402, 1397, 1397, 1397, 1397,
-     1397, 1397, 1398, 1398, 1398, 1398, 1398, 1398, 1403, 1403,
-     1403, 1399, 1399, 1399, 1399, 1399, 1399, 1400,    0, 1791,
-
-     1402, 1404, 1404, 1404, 1401, 1401, 1401, 1401, 1401, 1401,
-     1405, 1405, 1405, 1425, 1814, 1403, 1406, 1406, 1406, 1815,
-     1816, 1817, 1407, 1407, 1407, 1818, 1819, 1404, 1791, 1402,
-     1409, 1409, 1409, 1400, 1400, 1400, 1400, 1400, 1400,    0,
-        0,    0, 1425, 1814, 1403, 1820, 1407,    0, 1815, 1816,
-     1817, 1408, 1408, 1408, 1818, 1819, 1404, 1406,    0, 1791,
-        0, 1402, 1402, 1402, 1402, 1402, 1402, 1413, 1425, 1425,
-     1425, 1425, 1425, 1425, 1820, 1407, 1403, 1403, 1403, 1403,
-     1403, 1403,    0,    0,    0,    0, 1406, 1408,    0, 1404,
-     1404, 1404, 1404, 1404, 1404, 1410, 1413, 1414, 1405, 1405,
-
-     1405, 1405, 1405, 1405, 1406, 1406, 1406, 1406, 1406, 1406,
-     1407, 1407, 1407, 1407, 1407, 1407, 1408, 1416, 1409, 1409,
-     1409, 1409, 1409, 1409, 1410,    0, 1414,    0,    0, 1417,
-     1413, 1413, 1413, 1413, 1413, 1413, 1419, 1821, 1822, 1408,
-     1408, 1408, 1408, 1408, 1408, 1416, 1417, 1410, 1410, 1410,
-     1410, 1410, 1410, 1421, 1809, 1419, 1414, 1414, 1414, 1414,
-     1414, 1414, 1424,    0,    0,    0, 1821, 1822, 1420,    0,
-     1461, 1823, 1809, 1825, 1416, 1417, 1423, 1490, 1490, 1490,
-     1420,    0,    0, 1809, 1419,    0,    0, 1826, 1423, 1421,
-     1827, 1416, 1416, 1416, 1416, 1416, 1416, 1422, 1424, 1461,
-
-     1823, 1809, 1825, 1417, 1417, 1417, 1417, 1417, 1417, 1420,
-     1419, 1419, 1419, 1419, 1419, 1419, 1826, 1423,    0, 1827,
-     1422, 1461, 1461, 1461, 1461, 1461, 1461, 1421, 1421, 1421,
-     1421, 1421, 1421,    0,    0,    0, 1424, 1424, 1424, 1424,
-     1424, 1424, 1420, 1420, 1420, 1420, 1420, 1420,    0, 1422,
-     1423, 1423, 1423, 1423, 1423, 1423, 1466, 1466, 1466, 1466,
-     1466, 1466, 1466, 1466, 1466, 1490, 1490, 1490, 1490, 1490,
-     1490, 1422, 1422, 1422, 1422, 1422, 1422, 1464, 1464, 1464,
-     1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464,
-     1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464,
-
-     1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464,
-     1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464,
-     1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464,
-     1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464,
-     1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464,
-     1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464,
-     1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464, 1464,
-     1464, 1464, 1467, 1848, 1851, 1468,    0,    0,    0, 1474,
-     1622, 1622, 1622, 1622, 1622, 1622,    0, 1469, 1632, 1632,
-     1632, 1632, 1632, 1632, 1475, 1766, 1766, 1766, 1766, 1766,
-
-     1766, 1467, 1848, 1851, 1468, 1487, 1487, 1487, 1487, 1487,
-     1487, 1487, 1487, 1487,    0, 1476, 1469, 1474, 1474, 1474,
-     1474, 1474, 1474, 1475,    0,    0, 1467, 1467, 1467, 1467,
-     1467, 1467, 1468, 1468, 1468, 1468, 1468, 1468, 1469, 1469,
-     1469, 1469, 1469, 1469, 1476, 1480, 1855, 1858, 1481, 1859,
-     1860, 1475, 1475, 1475, 1475, 1475, 1475, 1482, 1488, 1488,
-     1488, 1861, 1866, 1870,    0, 1577, 1476, 1476, 1476, 1476,
-     1476, 1476,    0,    0, 1480, 1855, 1858, 1481, 1859, 1860,
-     1489, 1489, 1489,    0,    0, 1488, 1482, 1491, 1491, 1491,
-     1861, 1866, 1870, 1492, 1492, 1492, 1480, 1480, 1480, 1480,
-
-     1480, 1480, 1481, 1481, 1481, 1481, 1481, 1481, 1482, 1482,
-     1482, 1482, 1482, 1482, 1488,    0, 1886, 1493, 1493, 1493,
-        0,    0,    0, 1489, 1494, 1494, 1494, 1887, 1889, 1491,
-     1495, 1495, 1495, 1906, 1907, 1912, 1496, 1496, 1496, 1577,
-     1577, 1577, 1577, 1577, 1577, 1886, 1488, 1488, 1488, 1488,
-     1488, 1488, 1489,    0,    0,    0, 1887, 1889, 1491, 1493,
-     1915, 1496, 1906, 1907, 1912, 1920, 1494,    0, 1489, 1489,
-     1489, 1489, 1489, 1489,    0, 1491, 1491, 1491, 1491, 1491,
-     1491, 1492, 1492, 1492, 1492, 1492, 1492,    0, 1493, 1915,
-     1496, 1501, 1501, 1501, 1920, 1494, 1514, 1514, 1514, 1514,
-
-     1514, 1514, 1514, 1514, 1514, 1493, 1493, 1493, 1493, 1493,
-     1493, 1921, 1494, 1494, 1494, 1494, 1494, 1494, 1495, 1495,
-     1495, 1495, 1495, 1495, 1496, 1496, 1496, 1496, 1496, 1496,
-     1497, 1497, 1497,    0, 1922,    0, 1498, 1498, 1498, 1824,
-     1921, 1927, 1928, 1499, 1499, 1499,    0,    0, 1929, 1500,
-     1500, 1500,    0,    0,    0,    0, 1930, 1497, 1499, 1931,
-     1824, 1932, 1498, 1922, 1504, 1504, 1504, 1933, 1824,    0,
-     1927, 1928,    0, 1500, 1502, 1502, 1502, 1929,    0, 1501,
-     1501, 1501, 1501, 1501, 1501, 1930, 1497, 1504, 1931, 1824,
-     1932, 1498,    0,    0,    0,    0, 1933, 1507, 1507, 1507,
-
-        0, 1502, 1500,    0,    0,    0,    0, 1503, 1503, 1503,
-        0,    0,    0, 1506, 1506, 1506, 1504,    0, 1497, 1497,
-     1497, 1497, 1497, 1497, 1498, 1498, 1498, 1498, 1498, 1498,
-     1502, 1499, 1499, 1499, 1499, 1499, 1499, 1500, 1500, 1500,
-     1500, 1500, 1500, 1503, 1505, 1505, 1505, 1935, 1936, 1506,
-        0,    0, 1504, 1504, 1504, 1504, 1504, 1504, 1509, 1509,
-     1509,    0, 1502, 1502, 1502, 1502, 1502, 1502,    0, 1508,
-     1508, 1508, 1503,    0,    0,    0, 1935, 1936, 1506, 1510,
-     1510, 1510, 1937, 1938, 1505, 1507, 1507, 1507, 1507, 1507,
-     1507, 1515, 1515, 1515, 1510, 1503, 1503, 1503, 1503, 1503,
-
-     1503, 1506, 1506, 1506, 1506, 1506, 1506,    0,    0, 1508,
-        0, 1937, 1938, 1505, 1516, 1516, 1516, 1519, 1519, 1519,
-     1519, 1519, 1519, 1519, 1519, 1519, 1939, 1515,    0, 1521,
-     1521, 1521, 1505, 1505, 1505, 1505, 1505, 1505, 1508, 1522,
-     1522, 1522,    0,    0, 1623, 1516, 1509, 1509, 1509, 1509,
-     1509, 1509, 1520, 1520, 1520, 1939, 1515, 1508, 1508, 1508,
-     1508, 1508, 1508, 1521, 1523, 1523, 1523, 1510, 1510, 1510,
-     1510, 1510, 1510, 1623, 1516, 1529, 1529, 1529,    0, 1515,
-     1515, 1515, 1515, 1515, 1515,    0,    0,    0,    0, 1531,
-     1531, 1531, 1521,    0, 1520, 1523, 1623, 1623, 1623, 1623,
-
-     1623, 1623, 1516, 1516, 1516, 1516, 1516, 1516, 1526, 1526,
-     1526, 1526, 1526, 1526, 1526, 1526, 1526, 1521, 1521, 1521,
-     1521, 1521, 1521, 1520, 1523,    0,    0, 1522, 1522, 1522,
-     1522, 1522, 1522, 1527, 1527, 1527,    0,    0,    0,    0,
-     1520, 1520, 1520, 1520, 1520, 1520, 1528, 1528, 1528,    0,
-        0,    0, 1523, 1523, 1523, 1523, 1523, 1523,    0,    0,
-     1527, 1940, 1941, 1529, 1529, 1529, 1529, 1529, 1529,    0,
-        0, 1530, 1530, 1530, 1942, 1944, 1528, 1531, 1531, 1531,
-     1531, 1531, 1531, 1945,    0,    0, 1532, 1532, 1532, 1527,
-     1940, 1941, 1533, 1533, 1533,    0,    0,    0, 1530, 1534,
-
-     1534, 1534,    0, 1942, 1944, 1528, 1558, 1558, 1558,    0,
-        0, 1532, 1945, 1535, 1535, 1535,    0,    0, 1947, 1533,
-        0, 1527, 1527, 1527, 1527, 1527, 1527, 1530, 1535, 1559,
-     1559, 1559,    0,    0, 1528, 1528, 1528, 1528, 1528, 1528,
-     1532,    0, 1534, 1558, 1560, 1560, 1560, 1947, 1533, 1557,
-     1557, 1557, 1557, 1557, 1557, 1557, 1557, 1557,    0, 1530,
-     1530, 1530, 1530, 1530, 1530,    0,    0,    0, 1562, 1562,
-     1562, 1534, 1558,    0, 1532, 1532, 1532, 1532, 1532, 1532,
-     1533, 1533, 1533, 1533, 1533, 1533,    0, 1534, 1534, 1534,
-     1534, 1534, 1534,    0, 1558, 1558, 1558, 1558, 1558, 1558,
-
-     1624, 1535, 1535, 1535, 1535, 1535, 1535, 1563, 1563, 1563,
-     1562, 1580,    0, 1561, 1561, 1561,    0, 1559, 1559, 1559,
-     1559, 1559, 1559,    0,    0, 1564, 1564, 1564,    0, 1624,
-        0,    0, 1560, 1560, 1560, 1560, 1560, 1560, 1561, 1562,
-     1564, 1566, 1566, 1566,    0, 1624, 1624, 1624, 1624, 1624,
-     1624, 1565, 1565, 1565, 1948, 1949, 1562, 1562, 1562, 1562,
-     1562, 1562, 1568, 1568, 1568,    0,    0, 1561, 1846, 1846,
-     1846, 1846, 1846, 1846, 1567, 1567, 1567,    0, 1565, 1645,
-     1645, 1645, 1574, 1948, 1949, 1580, 1580, 1580, 1580, 1580,
-     1580, 1568, 1950, 1574, 1645, 1563, 1563, 1563, 1563, 1563,
-
-     1563, 1561, 1561, 1561, 1561, 1561, 1561, 1565, 1567, 1655,
-     1655, 1655,    0, 1564, 1564, 1564, 1564, 1564, 1564, 1571,
-     1568, 1950, 1574,    0, 1655,    0,    0,    0,    0, 1566,
-     1566, 1566, 1566, 1566, 1566,    0, 1573, 1567,    0, 1565,
-     1565, 1565, 1565, 1565, 1565,    0,    0,    0, 1571, 1573,
-     1568, 1568, 1568, 1568, 1568, 1568, 1574, 1574, 1574, 1574,
-     1574, 1574, 1567, 1567, 1567, 1567, 1567, 1567, 1579, 1645,
-     1571, 1571, 1571, 1571, 1571, 1571, 1575, 1579, 1573, 1604,
-     1951,    0, 1576, 1621, 1621, 1621, 1621, 1621, 1621, 1621,
-     1621, 1621, 1963, 1575, 1964, 1576, 1965, 1966,    0, 1655,
-
-        0,    0, 1581,    0,    0, 1967, 1579, 1582, 1604, 1951,
-     1573, 1573, 1573, 1573, 1573, 1573, 1578,    0,    0, 1581,
-     1968, 1963, 1575, 1964, 1576, 1965, 1966, 1604, 1604, 1604,
-     1604, 1604, 1604, 1578, 1967, 1969, 1582, 1996, 1578,    0,
-        0,    0, 1579, 1579, 1579, 1579, 1579, 1579, 1581, 1968,
-     1575, 1575, 1575, 1575, 1575, 1575, 1576, 1576, 1576, 1576,
-     1576, 1576, 1578,    0, 1969,    0, 1996, 1578, 1582, 1582,
-     1582, 1582, 1582, 1582, 1603, 1999, 1581, 1581, 1581, 1581,
-     1581, 1581,    0, 1605, 1605, 1605, 2005,    0, 1605, 2012,
-     1578, 1578, 1578, 1578, 1578, 1578, 1605, 1608, 1608, 1608,
-
-        0,    0, 1608, 1603, 1999, 1626, 2014, 1627,    0, 1605,
-     1608, 1609, 1609, 1609,    0, 2005, 1609,    0, 2012, 2015,
-     1612, 1612, 1612, 1608, 1609, 1612,    0, 1603, 1603, 1603,
-     1603, 1603, 1603, 1612, 1626, 2014, 1627, 1609, 1605,    0,
-        0, 1631, 2020, 1628,    0, 2027, 1612, 2028, 2015, 2029,
-     1633,    0, 1608, 1626, 1626, 1626, 1626, 1626, 1626, 1627,
-     1627, 1627, 1627, 1627, 1627,    0, 1609, 1637, 1637, 1637,
-     1631, 2020, 1628, 1605, 2027, 1612, 2028,    0, 2029, 1633,
-     1638, 1638, 1638,    0,    0, 2032, 1714, 1608, 1628, 1628,
-     1628, 1628, 1628, 1628, 1631, 1631, 1631, 1631, 1631, 1631,
-
-        0, 1609, 1633, 1633, 1633, 1633, 1633, 1633,    0,    0,
-     1612, 1614, 1614, 1614, 2032, 1714, 1614,    0,    0, 1897,
-     1897, 1897, 1638,    0, 1614, 1636, 1636, 1636, 1636, 1636,
-     1636, 1636, 1636, 1636, 1639, 1639, 1639, 1614, 1714, 1714,
-     1714, 1714, 1714, 1714,    0, 1640, 1640, 1640, 2034, 1897,
-        0, 1638, 1641, 1641, 1641, 1637, 1637, 1637, 1637, 1637,
-     1637, 1642, 1642, 1642,    0,    0, 1614,    0, 1638, 1638,
-     1638, 1638, 1638, 1638,    0,    0, 1640, 2034, 1897, 1641,
-     1643, 1643, 1643, 2035, 1642, 2036, 1644, 1644, 1644, 2037,
-     1614, 1614, 1614, 1614, 1614, 1614, 1614, 1614, 1614,    0,
-
-     2038, 1614, 1615, 1615, 1615, 1640,    0, 1615, 1641, 1897,
-     2039,    0, 2035, 1642, 2036, 1615,    0,    0, 2037, 1649,
-     1649, 1649, 1639, 1639, 1639, 1639, 1639, 1639, 1615, 2038,
-        0,    0,    0, 1640, 1640, 1640, 1640, 1640, 1640, 2039,
-     1641, 1641, 1641, 1641, 1641, 1641, 1650, 1650, 1650, 1642,
-     1642, 1642, 1642, 1642, 1642,    0,    0, 1615, 1647, 1647,
-     1647, 1647, 1647, 1647, 1647, 1647, 1647, 2040, 1643, 1643,
-     1643, 1643, 1643, 1643, 1644, 1644, 1644, 1644, 1644, 1644,
-        0, 1615, 1615, 1615, 1615, 1615, 1615, 1615, 1615, 1615,
-        0,    0, 1615, 1616, 1616, 1616, 2040,    0, 1616,    0,
-
-        0,    0, 1648, 1648, 1648,    0, 1616, 1649, 1649, 1649,
-     1649, 1649, 1649,    0,    0, 1651, 1651, 1651,    0, 1616,
-     1657, 1657, 1657, 1657, 1657, 1657, 1657, 1657, 1657, 1648,
-     1652, 1652, 1652, 2043, 1650, 1650, 1650, 1650, 1650, 1650,
-     1651, 1666, 1666, 1666,    0, 2041, 2041, 2041, 1616, 1665,
-     1665, 1665, 1665, 1665, 1665, 1665, 1665, 1665, 1648, 1653,
-     1653, 1653, 2043,    0,    0,    0,    0, 1652,    0, 1651,
-        0,    0, 1616, 1616, 1616, 1616, 1616, 1616, 1616, 1616,
-     1616,    0, 1653, 1616, 1617, 1617, 1617,    0,    0, 1617,
-     1648, 1648, 1648, 1648, 1648, 1648, 1652, 1617, 2044, 1707,
-
-     1707, 1707,    0, 1651, 1651, 1651, 1651, 1651, 1651,    0,
-     1617, 1653, 2045, 2046, 1707, 1661, 1661, 1661, 1652, 1652,
-     1652, 1652, 1652, 1652, 1654, 1654, 1654, 2044,    0, 1666,
-     1666, 1666, 1666, 1666, 1666, 2041, 1662, 1662, 1662, 1617,
-        0, 2045, 2046, 1667, 1667, 1667,    0, 1653, 1653, 1653,
-     1653, 1653, 1653, 2047, 2048, 1654, 1661, 1668, 1668, 1668,
-        0, 2049, 2050, 1617, 1617, 1617, 1617, 1617, 1617, 1617,
-     1617, 1617,    0, 1662, 1617, 1618, 1618, 1618,    0,    0,
-     1618,    0, 2047, 2048, 1654, 1661,    0,    0, 1618, 1707,
-     2049, 2050, 2053, 2054, 1668, 1671, 1671, 1671,    0,    0,
-
-        0, 1618, 1662, 1661, 1661, 1661, 1661, 1661, 1661, 1672,
-     1672, 1672, 1654, 1654, 1654, 1654, 1654, 1654, 1674, 1674,
-     1674, 2053, 2054, 1668, 1662, 1662, 1662, 1662, 1662, 1662,
-     1618, 1667, 1667, 1667, 1667, 1667, 1667, 1673, 1673, 1673,
-     2055, 2057,    0,    0,    0, 1668, 1668, 1668, 1668, 1668,
-     1668, 1674, 1673, 2058, 1618, 1618, 1618, 1618, 1618, 1618,
-     1618, 1618, 1618,    0, 2059, 1618, 1619, 1619, 1619, 2055,
-     2057, 1619, 1675, 1675, 1675,    0, 1794, 1794, 1794, 1619,
-     1674,    0, 2058, 1671, 1671, 1671, 1671, 1671, 1671,    0,
-     2063, 1794, 1619, 2059, 2070, 2073,    0, 1672, 1672, 1672,
-
-     1672, 1672, 1672, 1676, 1676, 1676, 1674, 1674, 1674, 1674,
-     1674, 1674, 2074,    0, 2076, 2080, 1677, 1677, 1677, 2063,
-        0, 1619,    0, 2070, 2073, 1673, 1673, 1673, 1673, 1673,
-     1673, 1677, 1710, 1710, 1710,    0,    0,    0, 1677, 1676,
-     2093, 2074, 1677, 2076, 2080, 1619, 1619, 1619, 1619, 1619,
-     1619, 1619, 1619, 1619, 1677,    0, 1619, 1704, 1704, 1704,
-     1675, 1675, 1675, 1675, 1675, 1675, 1794,    0, 1676, 2093,
-        0, 1677, 1679, 1679, 1679, 1679, 1679, 1679, 1679, 1679,
-     1679,    0,    0, 1677, 1705, 1705, 1705, 1758, 1910, 1910,
-     1910, 1676, 1676, 1676, 1676, 1676, 1676,    0,    0, 1704,
-
-     1706, 1706, 1706, 1910, 1713, 1716, 1677, 1709, 1709, 1709,
-     1709, 1709, 1709, 1709, 1709, 1709, 1758, 1712, 1712, 1712,
-     1710, 1710, 1710, 1710, 1710, 1710, 1705, 1706, 1704,    0,
-     1711, 1711, 1711, 1713, 1758, 1758, 1758, 1758, 1758, 1758,
-        0, 1716, 2101,    0,    0, 1704, 1704, 1704, 1704, 1704,
-     1704,    0,    0,    0,    0, 1705, 1706, 1711, 1712, 1715,
-        0, 1713, 1713, 1713, 1713, 1713, 1713, 1718, 1905, 1905,
-     1905, 2101, 1705, 1705, 1705, 1705, 1705, 1705, 1910, 1716,
-     1716, 1716, 1716, 1716, 1716, 1715, 1711, 1712, 1706, 1706,
-     1706, 1706, 1706, 1706,    0, 1911, 1911, 1911, 1905, 1717,
-
-     1718,    0, 2106, 2108,    0, 1712, 1712, 1712, 1712, 1712,
-     1712, 1717, 1719,    0, 1715,    0,    0,    0, 1711, 1711,
-     1711, 1711, 1711, 1711, 1719, 1911, 1739, 1905,    0, 1718,
-     1720, 2106, 2108, 1715, 1715, 1715, 1715, 1715, 1715, 1720,
-     1717, 1718, 1718, 1718, 1718, 1718, 1718,    0,    0,    0,
-        0, 1721,    0, 1719, 1911, 1739,    0, 1722, 1905, 2130,
-     2130, 2130,    0, 1721, 2109, 2113, 1740, 2116, 1720, 1722,
-     1723, 2118, 2119, 1717, 1717, 1717, 1717, 1717, 1717, 1739,
-     1739, 1739, 1739, 1739, 1739, 1911, 1719, 1719, 1719, 1719,
-     1719, 1719, 1721, 2109, 2113, 1740, 2116,    0, 1722, 1723,
-
-     2118, 2119,    0,    0, 1720, 1720, 1720, 1720, 1720, 1720,
-        0, 1723, 1723, 1723, 1723, 1723, 1723, 1740, 1740, 1740,
-     1740, 1740, 1740,    0,    0, 1721, 1721, 1721, 1721, 1721,
-     1721, 1722, 1722, 1722, 1722, 1722, 1722, 1741, 1741, 1741,
-        0, 2120, 1741, 1742, 1742, 1742,    0,    0, 1742, 2130,
-     1741, 2123, 1743, 1743, 1743, 1882, 1742, 1743,    0, 1746,
-     1746, 1746,    0, 1741, 1746, 1743, 1759,    0, 2125, 1742,
-     2120,    0, 1746,    0, 1753, 1753, 1753,    0, 1743, 1753,
-     2123, 2098,    0,    0, 1882, 1746, 1742, 1753,    0, 1776,
-     1776, 1776, 1741,    0,    0, 1759, 2098, 2125, 1742, 2126,
-
-     1753, 1882, 1882, 1882, 1882, 1882, 1882, 1743,    0,    0,
-     2098, 1756, 1756, 1756, 1746, 1742, 1756, 1760, 1759, 1759,
-     1759, 1759, 1759, 1759, 1756, 2098,    0, 1741, 2126, 1753,
-        0, 1743,    0, 1742,    0,    0, 1761, 1756, 1762,    0,
-        0,    0, 1743,    0,    0, 2127, 1760,    0,    0, 1746,
-     1748, 1748, 1748, 1753, 1753, 1748,    0, 1753,    0, 1753,
-     1753, 1753,    0, 1748, 1753, 1761, 1756, 1762, 1760, 1760,
-     1760, 1760, 1760, 1760, 2127, 2128, 1748, 1776, 1776, 1776,
-     1776, 1776, 1776, 1761, 1761, 1761, 1761, 1761, 1761,    0,
-     1762, 1762, 1762, 1762, 1762, 1762, 1769, 1769, 1769, 2129,
-
-        0, 1756,    0,    0, 2128, 1748,    0, 1997, 1997, 1997,
-     1770, 1770, 1770,    0,    0, 1765, 2134, 1771, 1771, 1771,
-        0, 1997,    0, 1769, 1772, 1772, 1772,    0, 2129, 1748,
-     1748, 1748, 1748, 1748, 1748, 1748, 1748, 1748,    0,    0,
-     1748, 1749, 1749, 1749, 1765, 2134, 1749, 1770, 2136, 2003,
-     2003, 2003, 1769, 1771, 1749, 1775, 1775, 1775, 1775, 1775,
-     1775, 1775, 1775, 1775, 2003, 2138, 1772, 1749, 1765, 1765,
-     1765, 1765, 1765, 1765, 1840, 2139, 1770, 2136, 1777, 1777,
-     1777,    0, 1771,    0, 1769, 1769, 1769, 1769, 1769, 1769,
-     1778, 1778, 1778,    0, 2138, 1772, 1749, 1997, 1770, 1770,
-
-     1770, 1770, 1770, 1770, 2139, 1771, 1771, 1771, 1771, 1771,
-     1771, 1777, 1772, 1772, 1772, 1772, 1772, 1772, 2141,    0,
-     1749, 1749, 1749, 1749, 1749, 1749, 1749, 1749, 1749,    0,
-     2142, 1749, 1750, 1750, 1750, 1778, 2143, 1750,    0, 2003,
-     1777, 1779, 1779, 1779,    0, 1750,    0, 2141, 1840, 1840,
-     1840, 1840, 1840, 1840, 1780, 1780, 1780,    0, 1750, 2142,
-     2145, 2146,    0,    0, 1778, 2143, 1777, 1777, 1777, 1777,
-     1777, 1777,    0, 2010, 2010, 2010, 1779, 2147, 1778, 1778,
-     1778, 1778, 1778, 1778, 1797, 1797, 1797, 1750, 2010, 2145,
-     2146, 1780, 1783, 1783, 1783, 1783, 1783, 1783, 1783, 1783,
-
-     1783, 1787, 1787, 1787,    0, 1779, 2147,    0, 1786, 1786,
-     1786, 1750, 1750, 1750, 1750, 1750, 1750, 1750, 1750, 1750,
-     1780,    0, 1750, 1751, 1751, 1751,    0,    0, 1751, 1779,
-     1779, 1779, 1779, 1779, 1779, 1786, 1751, 2149,    0,    0,
-        0, 1787, 1780, 1780, 1780, 1780, 1780, 1780,    0, 1751,
-     1796, 1796, 1796, 1796, 1796, 1796, 1796, 1796, 1796, 1792,
-     1792, 1792,    0, 2010, 1786,    0, 2149, 1828, 1828, 1828,
-     1787,    0, 1797, 1797, 1797, 1797, 1797, 1797, 1751,    0,
-     2131, 2131, 2131, 1798, 1798, 1798,    0,    0, 1836, 1787,
-     1787, 1787, 1787, 1787, 1787, 1792, 1786, 1786, 1786, 1786,
-
-     1786, 1786, 1751, 1751, 1751, 1751, 1751, 1751, 1751, 1751,
-     1751,    0,    0, 1751, 1752, 1752, 1752, 1836,    0, 1752,
-        0, 2137, 2137, 2137, 1792, 1798,    0, 1752, 1804, 1804,
-     1804, 1804, 1804, 1804, 1804, 1804, 1804, 1830, 1830, 1830,
-     1752, 1836, 1836, 1836, 1836, 1836, 1836, 1792, 1792, 1792,
-     1792, 1792, 1792,    0, 1798, 1828, 1828, 1828, 1828, 1828,
-     1828, 1829, 1829, 1829,    0, 2095, 2095, 2095,    0, 1752,
-     2131, 1798, 1798, 1798, 1798, 1798, 1798, 1833, 1833, 1833,
-     1833, 1833, 1833, 1833, 1833, 1833,    0, 2150, 2095, 1835,
-     1835, 1835, 1829, 1752, 1752, 1752, 1752, 1752, 1752, 1752,
-
-     1752, 1752,    0, 2151, 1752, 1754, 1754, 1754,    0,    0,
-     1754, 2137, 2148, 2154, 1837, 2148, 2150, 2095, 1754, 2155,
-        0, 1829,    0,    0,    0, 1830, 1830, 1830, 1830, 1830,
-     1830, 1754, 2151,    0,    0, 1834, 1834, 1834, 1838, 2156,
-     2158, 2148, 2154, 1837, 2148,    0, 2162,    0, 2155, 1829,
-     1829, 1829, 1829, 1829, 1829, 2095, 1839, 2018, 2018, 2018,
-     1754, 1837, 1837, 1837, 1837, 1837, 1837, 1841, 2156, 2158,
-     2167, 2169, 2018, 1839, 1838, 2162, 1834, 1835, 1835, 1835,
-     1835, 1835, 1835, 1842, 1754, 1754, 1754, 1754, 1754, 1754,
-     1754, 1754, 1754,    0,    0, 1754, 1755, 1755, 1755, 2167,
-
-     2169, 1755, 1839,    0,    0, 1834,    0,    0, 2170, 1755,
-        0, 2152, 1838, 1838, 1838, 1838, 1838, 1838, 1843, 2172,
-     2173, 2152, 1755, 1834, 1834, 1834, 1834, 1834, 1834, 1844,
-     1839, 1839, 1839, 1839, 1839, 1839, 1845, 2170,    0, 1843,
-     2152, 1841, 1841, 1841, 1841, 1841, 1841, 2018, 2172, 2173,
-     2152, 1755, 2030, 2030, 2030, 2176, 2184, 1842, 1842, 1842,
-     1842, 1842, 1842,    0,    0,    0,    0, 2030, 1843, 1862,
-     2186, 2192, 2193, 1863,    0, 1755, 1755, 1755, 1755, 1755,
-     1755, 1755, 1755, 1755, 2176, 2184, 1755,    0,    0, 2177,
-     2177, 2177, 1843, 1843, 1843, 1843, 1843, 1843, 1862, 2186,
-
-     2192, 2193, 1863, 1844, 1844, 1844, 1844, 1844, 1844, 2177,
-     1845, 1845, 1845, 1845, 1845, 1845, 1863, 1863, 1863, 1863,
-     1863, 1863,    0, 1926, 1926, 1926, 1862, 1862, 1862, 1862,
-     1862, 1862, 1864, 1864, 1864,    0,    0, 1864, 1865, 1865,
-     1865,    0, 2030, 1865,    0, 1864,    0, 1867, 1867, 1867,
-        0, 1865, 1867, 1926, 2195, 1864, 2198, 2199, 1864,    0,
-     1867, 2200,    0, 2206, 1865, 1868, 1868, 1868,    0, 2208,
-     1868,    0,    0, 1867, 2209, 1869, 1869, 1869, 1868, 2177,
-     1869,    0, 1926, 2195, 1864, 2198, 2199, 1864, 1869,    0,
-     2200, 1868, 2206, 1865, 2212, 1874, 1874, 1874, 2208,    0,
-
-     1874, 1869, 1867, 2209,    0, 1875, 1875, 1875, 1874,    0,
-     1875,    0,    0, 1926, 1876, 1876, 1876, 1865, 1875, 1876,
-     1868, 1874, 1864, 2212, 2061, 2061, 2061, 1876, 1865, 2213,
-     1869, 1875, 2214, 1877, 1877, 1877,    0, 1867, 1877, 2061,
-     1876, 2178, 2178, 2178,    0,    0, 1877, 1881,    0, 2215,
-     1874, 1879, 1879, 1879, 1869, 1868, 1879, 2178, 2213, 1877,
-     1875, 2214,    0,    0, 1879, 1869, 1873, 1873, 1873, 1876,
-     2217, 1873, 1884, 2077, 2077, 2077, 1881, 1879, 2215, 1873,
-        0,    0,    0,    0,    0, 1874,    0, 2077, 1877, 1878,
-     1878, 1878, 1873, 2222, 1878, 1875,    0, 2224, 2228, 2217,
-
-     2230, 1884, 1878,    0, 1876,    0, 1879,    0, 1881, 1881,
-     1881, 1881, 1881, 1881, 2061, 1878,    0,    0, 2203, 2203,
-     2203, 1873, 2222, 1877,    0, 1883, 2224, 2228, 1888, 2230,
-     1879, 2178, 1878, 1884, 1884, 1884, 1884, 1884, 1884,    0,
-        0, 1879,    0,    0, 1878, 1873, 1873, 1873, 1873, 1873,
-     1873, 1873, 1873, 1873, 1883, 1885, 1873, 1888, 1890, 1890,
-     1890, 1878,    0, 2077, 1891, 1891, 1891,    0, 1883, 1883,
-     1883, 1883, 1883, 1883, 1892, 1892, 1892,    0,    0, 1878,
-     1893, 1893, 1893,    0, 1885, 1888, 1888, 1888, 1888, 1888,
-     1888, 1898, 1898, 1898, 1992, 1992, 1992, 1992, 1992, 1992,
-
-     1891, 1885, 1885, 1885, 1885, 1885, 1885, 1893, 2203,    0,
-     1914, 1914, 1914,    0,    0,    0, 1892, 1899, 1899, 1899,
-     1918, 1918, 1918, 1918, 1918, 1918, 1918, 1918, 1918, 1891,
-        0, 2231, 1900, 1900, 1900,    0, 1893, 2218, 2218, 2218,
-        0,    0, 1919, 1919, 1919, 1892, 1890, 1890, 1890, 1890,
-     1890, 1890, 1891, 1891, 1891, 1891, 1891, 1891, 1899, 1900,
-     2231,    0, 1892, 1892, 1892, 1892, 1892, 1892, 1893, 1893,
-     1893, 1893, 1893, 1893, 1901, 1901, 1901,    0,    0, 1898,
-     1898, 1898, 1898, 1898, 1898,    0,    0, 1899, 1900, 1908,
-     1908, 1908,    0,    0,    0, 1909, 1909, 1909, 1914, 1914,
-
-     1914, 1914, 1914, 1914,    0, 1899, 1899, 1899, 1899, 1899,
-     1899, 1956, 1956, 1956, 1901, 1957, 1957, 1957,    0,    0,
-     1900, 1900, 1900, 1900, 1900, 1900, 1909, 2218, 1958, 1908,
-     1919, 1919, 1919, 1919, 1919, 1919, 1952, 1952, 1952,    0,
-        0, 1956, 1960, 1901, 1995, 1995, 1995, 1995, 1995, 1995,
-        0,    0, 2189, 2189, 2189, 1909, 1961, 1958, 1908, 2000,
-     2000, 2000, 1901, 1901, 1901, 1901, 1901, 1901, 1961, 1960,
-     1956, 2233, 2189, 1952, 2220, 2220, 2220, 1908, 1908, 1908,
-     1908, 1908, 1908, 1909, 1909, 1909, 1909, 1909, 1909, 1958,
-     1958, 1958, 1958, 1958, 1958,    0,    0, 1961, 1960, 1962,
-
-     2233, 1956, 1952, 1957, 1957, 1957, 1957, 1957, 1957, 1959,
-     1972, 2234, 1962, 2004, 2004, 2004, 1960, 1960, 1960, 1960,
-     1960, 1960,    0,    0, 1952, 1952, 1952, 1952, 1952, 1952,
-     1961, 1961, 1961, 1961, 1961, 1961, 1973,    0, 1959, 1972,
-     2234, 1962, 2189, 2004,    0,    0,    0, 2000, 2000, 2000,
-     2000, 2000, 2000, 2235,    0,    0, 1972, 1972, 1972, 1972,
-     1972, 1972,    0, 2236, 2220, 1973, 1959, 1959, 1959, 1959,
-     1959, 1959, 2004, 1962, 1962, 1962, 1962, 1962, 1962,    0,
-        0, 2237, 2235, 1973, 1973, 1973, 1973, 1973, 1973, 1974,
-     1974, 1974, 2236, 2238, 1974, 1976, 1976, 1976,    0,    0,
-
-     1976,    0, 1974, 2004, 1977, 1977, 1977,    0, 1976, 1977,
-     2237, 1978, 1978, 1978,    0, 1974, 1978, 1977,    0, 2239,
-     2240, 1976, 2238, 1974, 1978,    0,    0, 1979, 1979, 1979,
-     1977,    0, 1979, 2241, 1980, 1980, 1980, 1978,    0, 1980,
-     1979, 1981, 1981, 1981, 1974, 2243, 1981, 1980, 2239, 2240,
-     1976, 2244, 1974, 1979, 1981, 2223, 2223, 2223,    0, 1977,
-     1980, 2245, 2241, 2011, 2011, 2011, 1978, 1981, 2026, 2026,
-     2026, 1982, 1982, 1982, 2243,    0, 1982, 1980,    0, 1974,
-     2244,    0, 1979,    0, 1982, 1976, 1984, 1984, 1984, 1980,
-     2245, 1984,    0, 2011, 1977,    0, 1981, 1982, 2026, 1984,
-
-     2246, 1978, 1985, 1985, 1985,    0, 1980, 1985, 1986, 1986,
-     1986,    0, 1984, 1986,    0, 1985,    0, 1979,    0,    0,
-     1981, 1986, 2011,    0, 1980,    0, 1982, 2026, 1985, 2246,
-        0, 1981,    0, 2249, 1986,    0, 1991, 2253, 1987, 1987,
-     1987, 1984,    0, 1987,    0, 2223, 2256, 1988, 1988, 1988,
-     1982, 1987, 1988, 2011, 1989, 1989, 1989, 1985, 2026, 1989,
-     1988, 1982, 2249, 1986, 1987, 1991, 2253, 1989, 2259, 1990,
-     1990, 1990,    0, 1988, 1990, 2256, 1984, 1989,    0, 2269,
-     1989, 1985, 1990, 1993, 1991, 1991, 1991, 1991, 1991, 1991,
-     1994,    0, 1985, 1987, 2276, 1990, 2277, 2259, 1986, 2001,
-
-     2001, 2001, 1988,    0,    0,    0, 1989, 1998, 2269, 1989,
-        0,    0, 1993, 2002, 2002, 2002,    0, 1987,    0, 1994,
-     2007, 2007, 2007, 2276, 1990, 2277,    0,    0, 1987,    0,
-     1993, 1993, 1993, 1993, 1993, 1993, 1998, 1988, 1994, 1994,
-     1994, 1994, 1994, 1994, 1989, 2008, 2008, 2008, 1990, 2190,
-     2190, 2190, 2068, 1998, 1998, 1998, 1998, 1998, 1998, 1990,
-        0,    0, 2009, 2009, 2009, 2190, 2031, 2031, 2031,    0,
-        0,    0, 2016, 2016, 2016,    0,    0,    0, 2017, 2017,
-     2017, 2082, 2082, 2082, 2082, 2082, 2082, 2001, 2001, 2001,
-     2001, 2001, 2001, 2009, 2281, 2282, 2031,    0, 2278, 2278,
-
-     2278, 2002, 2002, 2002, 2002, 2002, 2002,    0, 2007, 2007,
-     2007, 2007, 2007, 2007, 2016, 2069,    0, 2062, 2062, 2062,
-     2017,    0, 2009, 2281, 2282, 2031, 2068, 2068, 2068, 2068,
-     2068, 2068,    0, 2008, 2008, 2008, 2008, 2008, 2008, 2190,
-        0,    0,    0, 2016, 2060, 2060, 2060, 2062, 2287, 2017,
-     2009, 2009, 2009, 2009, 2009, 2009, 2031, 2051, 2051, 2051,
-     2016, 2016, 2016, 2016, 2016, 2016, 2017, 2017, 2017, 2017,
-     2017, 2017, 2066, 2288, 2289, 2290, 2062, 2287,    0, 2295,
-     2060,    0, 2051, 2299, 2302, 2051, 2303, 2065, 2278, 2069,
-     2069, 2069, 2069, 2069, 2069,    0, 2094, 2094, 2094, 2051,
-
-        0, 2066, 2288, 2289, 2290,    0,    0, 2062, 2295, 2060,
-     2094, 2051, 2299, 2302, 2051, 2303, 2065, 2305,    0, 2066,
-     2066, 2066, 2066, 2066, 2066, 2067, 2305,    0, 2051, 2081,
-     2081, 2081, 2060, 2060, 2060, 2060, 2060, 2060, 2065, 2065,
-     2065, 2065, 2065, 2065,    0, 2306, 2305, 2051, 2056, 2081,
-     2307, 2308, 2309, 2067, 2056, 2078, 2078, 2078, 2056, 2056,
-        0,    0,    0, 2056, 2056, 2056, 2310, 2056, 2091, 2091,
-     2091, 2091, 2091, 2091, 2306,    0, 2312, 2056, 2078, 2307,
-     2308, 2309, 2067, 2056, 2311, 2311, 2094, 2056, 2056, 2226,
-     2226, 2226, 2056, 2056, 2056, 2310, 2056, 2078,    0, 2067,
-
-     2067, 2067, 2067, 2067, 2067, 2312,    0, 2078, 2313,    0,
-     2083, 2083, 2083, 2311, 2311, 2083,    0, 2081, 2081, 2081,
-     2081, 2081, 2081, 2083,    0,    0, 2078, 2084, 2084, 2084,
-        0, 2226, 2084, 2085, 2085, 2085, 2083, 2313, 2085,    0,
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+     1188, 1737, 1193, 1186, 1186, 1186, 1186, 1186, 1186, 1192,
+        0,    0, 1188, 1188, 1188, 1188, 1188, 1188, 1191,    0,
+        0, 1189, 1738, 1187, 1187, 1187, 1187, 1187, 1187, 1192,
+     1191, 1193,    0, 1194, 1739,    0, 1190, 1190, 1190, 1190,
+     1190, 1190,    0, 1195,    0, 1740,    0, 1189, 1189, 1189,
+
+     1189, 1189, 1189, 1656,    0,    0,    0, 1474, 1192, 1191,
+     1194, 1195,    0, 1739, 1196,    0,    0, 1193, 1193, 1193,
+     1193, 1193, 1193, 1196, 1740, 1205, 1741,    0,    0,    0,
+        0, 1197, 1192, 1192, 1192, 1192, 1192, 1192, 1198, 1194,
+     1195, 1191, 1191, 1191, 1191, 1191, 1191, 1197, 1198, 1202,
+     1202, 1202, 1196, 1205, 1199, 1741, 1194, 1194, 1194, 1194,
+     1194, 1194,    0, 1202, 1199, 1742, 1195, 1195, 1195, 1195,
+     1195, 1195,    0, 1226,    0,    0, 1197, 1198,    0,    0,
+        0, 1743, 1205,    0,    0,    0,    0, 1196, 1196, 1196,
+     1196, 1196, 1196, 1199, 1742,    0,    0,    0, 1205, 1205,
+
+     1205, 1205, 1205, 1205, 1197, 1197, 1197, 1197, 1197, 1197,
+     1743, 1198, 1198, 1198, 1198, 1198, 1198, 1203, 1224, 1224,
+     1224, 1224, 1224, 1224, 1224, 1224, 1224, 1199, 1199, 1199,
+     1199, 1199, 1199, 1200, 1200, 1200, 1202, 1202, 1202, 1202,
+     1202, 1202, 1230, 1203, 1226, 1226, 1226, 1226, 1226, 1226,
+     1204,    0,    0,    0, 1200,    0,    0, 1200, 1200, 1206,
+        0,    0,    0,    0,    0, 1207,    0, 1228, 1200, 1200,
+     1200, 1206, 1203, 1207, 1200, 1744, 1208, 1204, 1745,    0,
+     1230, 1230, 1230, 1230, 1230, 1230, 1200, 1200, 1208, 1209,
+     1203, 1203, 1203, 1203, 1203, 1203, 1228, 1200, 1200, 1200,
+
+     1206, 1212, 1207, 1200, 1744,    0, 1204, 1745, 1210, 1228,
+     1228, 1228, 1228, 1228, 1228, 1209, 1215, 1208, 1210, 2003,
+     2003, 2003, 1200, 1204, 1204, 1204, 1204, 1204, 1204, 1212,
+     1215,    0, 1206, 1206, 1206, 1206, 1206, 1206, 1207, 1207,
+     1207, 1207, 1207, 1207, 1209,    0,    0, 1210, 1211, 1208,
+     1208, 1208, 1208, 1208, 1208,    0, 1245,    0, 1212, 1215,
+     1213,    0, 1209, 1209, 1209, 1209, 1209, 1209, 1623, 1211,
+     1746,    0, 1214, 1623, 1212, 1212, 1212, 1212, 1212, 1212,
+     1214, 1210, 1210, 1210, 1210, 1210, 1210, 1213, 1216, 1215,
+     1215, 1215, 1215, 1215, 1215, 1217,    0, 1623, 1211, 1746,
+
+     1216, 1219, 1623, 1217,    0,    0,    0,    0, 2003, 1214,
+        0, 1218,    0,    0,    0,    0, 1213,    0, 1220,    0,
+        0, 1211, 1211, 1211, 1211, 1211, 1211, 1218, 1221, 1216,
+     1220, 1747, 1217, 1213, 1213, 1213, 1213, 1213, 1213, 1245,
+     1245, 1245, 1245, 1245, 1245, 1214, 1214, 1214, 1214, 1214,
+     1214, 1227, 1233, 1748, 1749, 1233, 1218,    0,    0, 1220,
+     1747, 1216, 1216, 1216, 1216, 1216, 1216,    0, 1217, 1217,
+     1217, 1217, 1217, 1217, 1219, 1219, 1219, 1219, 1219, 1219,
+     1227,    0, 1748, 1749, 1218, 1218, 1218, 1218, 1218, 1218,
+        0, 1220, 1220, 1220, 1220, 1220, 1220, 1234,    0,    0,
+
+     1234, 1221, 1221, 1221, 1221, 1221, 1221, 1235, 1750,    0,
+     1235, 1775, 1227, 1227, 1227, 1227, 1227, 1227, 1238, 1248,
+     1671, 1238, 1671, 1234,    0, 1233, 1233, 1233, 1233, 1233,
+     1233, 1777, 1671, 1778, 1235, 1236, 1779, 1750, 1236, 1780,
+     1775, 1239,    0,    0, 1239,    0,    0, 1240, 1781, 1782,
+     1240,    0, 1234, 1238,    0,    0,    0, 1239, 1236, 1240,
+     1777, 1671, 1778, 1235, 1241, 1779, 1246, 1241, 1780,    0,
+     1234, 1234, 1234, 1234, 1234, 1234, 1241, 1781, 1782,    0,
+     1235, 1235, 1235, 1235, 1235, 1235, 1239, 1236, 1240,    0,
+        0, 1238, 1238, 1238, 1238, 1238, 1238,    0, 1249, 1248,
+
+     1248, 1248, 1248, 1248, 1248, 1241,    0, 1783, 1236, 1236,
+     1236, 1236, 1236, 1236, 1239, 1239, 1239, 1239, 1239, 1239,
+     1240, 1240, 1240, 1240, 1240, 1240, 1242,    0,    0, 1242,
+        0,    0, 1243,    0,    0, 1243, 1783, 1241, 1241, 1241,
+     1241, 1241, 1241, 1244,    0, 1242, 1244, 1251, 1243, 1246,
+     1246, 1246, 1246, 1246, 1246, 1244, 1247, 1247, 1247, 1247,
+     1247, 1247, 1247, 1247, 1247, 1250, 1250, 1250, 1250, 1250,
+     1250, 1250, 1250, 1250, 1242,    0,    0, 1243, 1249, 1249,
+     1249, 1249, 1249, 1249, 1244, 1251, 1251, 1251, 1251, 1251,
+     1251, 1253,    0, 1252, 1784, 1785, 1786, 1254, 1787, 1242,
+
+     1242, 1242, 1242, 1242, 1242, 1243, 1243, 1243, 1243, 1243,
+     1243,    0,    0,    0,    0,    0, 1244, 1244, 1244, 1244,
+     1244, 1244, 1252, 1784, 1785, 1786,    0, 1787, 1253, 1253,
+     1253, 1253, 1253, 1253, 1254, 1254, 1254, 1254, 1254, 1254,
+     1255, 1255, 1255, 1255, 1255, 1255, 1255, 1255, 1255,    0,
+        0,    0,    0,    0, 1252, 1252, 1252, 1252, 1252, 1252,
+     1280, 1280, 1292, 1289, 1280, 1280,    0, 1291, 1280, 1280,
+     1280, 1280, 1280, 1280, 1280, 1280, 1280,    0, 1280, 1280,
+     1280, 1280, 1280, 1282, 1282, 1282, 1282, 1282, 1282, 1282,
+     1282, 1282, 1289, 1290, 1290, 1290, 1291,    0, 1290,    0,
+
+     1292, 1292, 1292, 1292, 1292, 1292, 1290,    0,    0, 1280,
+        0, 1280, 1302, 1302, 1302, 1302, 1302, 1302, 1302, 1302,
+     1302,    0,    0,    0,    0, 1289, 1289, 1289, 1289, 1289,
+     1289, 1293, 1291, 1291, 1291, 1291, 1291, 1291, 1280, 1280,
+     1280, 1280, 1280, 1280, 1280, 1280, 1280, 1280, 1280, 1280,
+     1280, 1280, 1280, 1280, 1281, 1281,    0, 1307, 1281, 1281,
+     1293,    0, 1281, 1281, 1281, 1281, 1281, 1281, 1281, 1281,
+     1281, 1308, 1281, 1281, 1281, 1281, 1281, 1788, 1789, 1790,
+     1290, 1290, 1290, 1290, 1290, 1290, 1307, 1310, 1310, 1310,
+     1310, 1310, 1310,    0, 1293, 1293, 1293, 1293, 1293, 1293,
+
+        0,    0,    0, 1281,    0, 1281, 1788, 1789, 1790, 1308,
+     1308, 1308, 1308, 1308, 1308,    0,    0,    0,    0, 1307,
+     1307, 1307, 1307, 1307, 1307, 1309, 1434, 1434, 1434, 1434,
+     1434, 1434, 1281, 1281, 1281, 1281, 1281, 1281, 1281, 1281,
+     1281, 1281, 1281, 1281, 1281, 1281, 1281, 1281, 1300, 1300,
+        0,    0, 1300, 1300, 1309, 1795, 1300, 1300, 1300, 1300,
+     1300, 1300, 1300, 1300, 1300,    0, 1300, 1300, 1300, 1300,
+     1300, 1314, 1314, 1314, 1314, 1314, 1314, 1314, 1314, 1314,
+     1348, 1348, 1348, 1798, 1795, 1544, 1544, 1544, 1309, 1309,
+     1309, 1309, 1309, 1309, 1348, 1821, 1838, 1300,    0, 1300,
+
+     1544,    0,    0, 1326, 1815, 1326, 1815,    0, 1819,    0,
+     1819, 1327, 1798,    0,    0, 1326, 1815,    0,    0, 1327,
+     1819,    0, 1351,    0, 1821, 1838, 1300, 1300, 1300, 1300,
+     1300, 1300, 1300, 1300, 1300, 1300, 1300, 1300, 1300, 1300,
+     1300, 1300, 1301, 1301, 1326, 1815, 1301, 1301, 1327, 1819,
+     1301, 1301, 1301, 1301, 1301, 1301, 1301, 1301, 1301,    0,
+     1301, 1301, 1301, 1301, 1301,    0, 1435, 1348, 1348, 1348,
+     1348, 1348, 1348, 1839, 1544,    0, 1326, 1326, 1326, 1326,
+     1326, 1326, 1847, 1848, 1327, 1327, 1327, 1327, 1327, 1327,
+     1432, 1301,    0, 1301, 1328, 1351, 1351, 1351, 1351, 1351,
+
+     1351, 1347, 1839, 1347, 1435, 1435, 1435, 1435, 1435, 1435,
+     1328, 1847, 1848, 1347, 1853, 1352, 1388, 1388, 1388,    0,
+     1301, 1301, 1301, 1301, 1301, 1301, 1301, 1301, 1301, 1301,
+     1301, 1301, 1301, 1301, 1301, 1301, 1312, 1312,    0, 1328,
+     1312, 1312, 1347, 1853, 1312, 1312, 1312, 1312, 1312, 1312,
+     1312, 1312, 1312, 1388, 1312, 1312, 1312, 1312, 1312,    0,
+        0, 1432, 1432, 1432, 1432, 1432, 1432, 1328, 1328, 1328,
+     1328, 1328, 1328,    0, 1347, 1347, 1347, 1347, 1347, 1347,
+     1857, 1355, 1388, 1858, 1859, 1312,    0, 1312, 1352, 1352,
+     1352, 1352, 1352, 1352,    0,    0,    0,    0,    0, 1349,
+
+     1479, 1479, 1479,    0, 1479, 1388,    0,    0, 1355, 1857,
+     1357,    0, 1858, 1859, 1312, 1312, 1312, 1312, 1312, 1312,
+     1312, 1312, 1312, 1312, 1312, 1312, 1312, 1312, 1312, 1312,
+     1313, 1313, 1349,    0, 1313, 1313, 1357, 1355, 1313, 1313,
+     1313, 1313, 1313, 1313, 1313, 1313, 1313,    0, 1313, 1313,
+     1313, 1313, 1313, 1350, 1355, 1355, 1355, 1355, 1355, 1355,
+        0, 1349, 1350, 1353, 1864, 1357,    0, 1866,    0, 1358,
+        0,    0, 1349, 1349, 1349, 1349, 1349, 1349, 1868, 1313,
+        0, 1313, 1354, 1357, 1357, 1357, 1357, 1357, 1357, 1479,
+        0, 1350,    0, 1864, 1356, 1353, 1866, 1513, 1513, 1513,
+
+     1361,    0,    0, 1354, 1356,    0,    0, 1868, 1313, 1313,
+     1313, 1313, 1313, 1313, 1313, 1313, 1313, 1313, 1313, 1313,
+     1313, 1313, 1313, 1313, 1353, 1361, 1350, 1350, 1350, 1350,
+     1350, 1350, 1354, 1356, 1513, 1867, 1353, 1353, 1353, 1353,
+     1353, 1353, 1358, 1358, 1358, 1358, 1358, 1358,    0, 1359,
+        0, 1869, 1870, 1867, 1361, 1354, 1354, 1354, 1354, 1354,
+     1354, 1359, 1360, 1513, 1867, 1871, 1872, 1356, 1356, 1356,
+     1356, 1356, 1356, 1361, 1361, 1361, 1361, 1361, 1361, 1362,
+     1869, 1870, 1867,    0, 1360, 1874, 1513, 1363, 1875,    0,
+     1359, 1362, 1876,    0, 1871, 1872, 1364,    0,    0, 1363,
+
+        0, 1877,    0, 1365, 1873, 1878,    0,    0,    0, 1368,
+        0,    0, 1364, 1360, 1874, 1873, 1879, 1875, 1368, 1366,
+     1362, 1876, 1359, 1359, 1359, 1359, 1359, 1359, 1363, 1365,
+     1877, 1369,    0, 1873, 1878, 1360, 1360, 1360, 1360, 1360,
+     1360, 1364,    0, 1367, 1873, 1879, 1366, 1368,    0, 1370,
+        0,    0, 1362, 1362, 1362, 1362, 1362, 1362, 1365, 1367,
+     1363, 1363, 1363, 1363, 1363, 1363, 1369, 1371,    0, 1364,
+     1364, 1364, 1364, 1364, 1364, 1366, 1365, 1365, 1365, 1365,
+     1365, 1365, 1368, 1368, 1368, 1368, 1368, 1368, 1367, 1372,
+        0,    0, 1366, 1366, 1366, 1366, 1366, 1366, 1374,    0,
+
+     1880, 1881, 1371, 1372, 1369, 1369, 1369, 1369, 1369, 1369,
+     1374, 1375,    0,    0,    0,    0, 1367, 1367, 1367, 1367,
+     1367, 1367, 1370, 1370, 1370, 1370, 1370, 1370, 1373, 1880,
+     1881,    0, 1372,    0, 1376,    0, 1560, 1560, 1560, 1374,
+     1371, 1371, 1371, 1371, 1371, 1371, 1555, 1555, 1555,    0,
+     1882, 1373, 1378, 1378, 1378, 1378, 1378, 1378, 1378, 1378,
+     1378, 1376, 1372, 1372, 1372, 1372, 1372, 1372, 1380, 1555,
+     1560, 1374, 1374, 1374, 1374, 1374, 1374,    0, 1379, 1882,
+     1373,    0,    0,    0, 1375, 1375, 1375, 1375, 1375, 1375,
+     1376, 1377, 1377, 1377, 1379, 1381,    0, 1883, 1555, 1560,
+
+        0, 1373, 1373, 1373, 1373, 1373, 1373, 1376, 1376, 1376,
+     1376, 1376, 1376,    0,    0, 1382, 1382, 1382, 1383, 1377,
+     1381, 1885,    0, 1379,    0, 1560, 1883,    0, 1377, 1382,
+     1382, 1886, 1887, 1567, 1383, 1555, 1384, 1567, 1567,    0,
+        0, 1380, 1380, 1380, 1380, 1380, 1380, 1386, 1377, 1381,
+     1885, 1379, 1379, 1379, 1379, 1379, 1379, 1377, 1384, 1385,
+     1886, 1887, 1567, 1383,    0,    0, 1567, 1567, 1381, 1381,
+     1381, 1381, 1381, 1381, 1387, 1391, 1391, 1391,    0, 1884,
+     1377, 1392,    0,    0,    0,    0, 1385, 1384, 1888, 1391,
+     1912, 1383, 1383, 1383, 1383, 1383, 1383, 1393, 1915,    0,
+
+     1884, 1387, 1382, 1382, 1382, 1382, 1382, 1382, 1884, 1384,
+     1384, 1384, 1384, 1384, 1384, 1385, 1415, 1888,    0, 1912,
+     1386, 1386, 1386, 1386, 1386, 1386,    0, 1915, 1390, 1884,
+     1387,    0, 1385, 1385, 1385, 1385, 1385, 1385, 1389, 1389,
+     1389, 1389, 1389, 1389, 1389, 1389, 1389, 1387, 1387, 1387,
+     1387, 1387, 1387, 1390, 1392, 1392, 1392, 1392, 1392, 1392,
+     1394,    0, 1391, 1391, 1391, 1391, 1391, 1391, 1395, 1916,
+     1393, 1393, 1393, 1393, 1393, 1393,    0, 1396, 1920, 1923,
+     1395,    0, 1390, 1397, 1397, 1397, 1394, 1396, 1398, 1415,
+     1415, 1415, 1415, 1415, 1415,    0,    0, 1397, 1916, 1924,
+
+     1398, 1390, 1390, 1390, 1390, 1390, 1390, 1920, 1923, 1395,
+     1399,    0,    0,    0,    0, 1394, 1396,    0, 1399, 1400,
+     1450, 1450, 1450, 1450, 1450, 1450, 1401, 1925, 1924, 1398,
+     1926,    0,    0, 1394, 1394, 1394, 1394, 1394, 1394, 1930,
+     1400, 1395, 1395, 1395, 1395, 1395, 1395, 1399, 1401, 1402,
+     1396, 1396, 1396, 1396, 1396, 1396, 1925,    0,    0, 1926,
+     1449, 1398, 1398, 1398, 1398, 1398, 1398, 1417, 1930, 1400,
+     1397, 1397, 1397, 1397, 1397, 1397, 1402, 1401, 2014, 2014,
+     2014,    0,    0, 1399, 1399, 1399, 1399, 1399, 1399, 1449,
+        0,    0, 1400, 1400, 1400, 1400, 1400, 1400,    0, 1401,
+
+     1401, 1401, 1401, 1401, 1401, 1402, 1411, 1411, 1411, 1411,
+     1411, 1411, 1411, 1411, 1411, 1449, 1449, 1449, 1449, 1449,
+     1449, 1934, 1402, 1402, 1402, 1402, 1402, 1402, 1412, 1412,
+     1412, 1413, 1413, 1413, 1413, 1413, 1413, 1413, 1413, 1413,
+     1417, 1417, 1417, 1417, 1417, 1417, 1414, 1437, 1956,    0,
+     1934, 1412, 1412, 1412, 1412, 1412, 1412, 1419, 1412, 1973,
+     1412, 1414, 1412, 1418, 1974, 1412, 1979, 2014, 1412, 1412,
+     1416,    0, 1412, 1982, 1418, 1983, 1437, 1956, 1420,    0,
+     1412, 1412, 1412, 1412, 1412, 1412, 1420, 1412, 1973, 1412,
+     1414, 1412, 1421, 1974, 1412, 1979, 1416, 1412, 1412, 1422,
+
+     1421, 1412, 1982, 1418, 1983, 1426, 1437, 1437, 1437, 1437,
+     1437, 1437, 1684, 1684, 1684, 1420, 1423, 1412,    0, 1414,
+     1414, 1414, 1414, 1414, 1414, 1416,    0, 1684, 1423, 1421,
+     1419, 1419, 1419, 1419, 1419, 1419, 1418, 1418, 1418, 1418,
+     1418, 1418,    0, 1416, 1416, 1416, 1416, 1416, 1416,    0,
+        0, 1420, 1420, 1420, 1420, 1420, 1420, 1423,    0, 1424,
+        0,    0,    0,    0,    0, 1421, 1421, 1421, 1421, 1421,
+     1421, 1424, 1422, 1422, 1422, 1422, 1422, 1422, 1426, 1426,
+     1426, 1426, 1426, 1426, 1425, 1951, 1954, 1951, 1954, 1423,
+     1423, 1423, 1423, 1423, 1423, 1425, 1427, 1951, 1954,    0,
+
+     1424, 1684, 1428, 1486,    0,    0,    0,    0, 1430,    0,
+     1987, 1428,    0,    0,    0,    0,    0, 1429, 1989, 1990,
+     1991, 1996, 1427, 1997, 1425, 1998, 1951, 1954, 1441,    0,
+        0,    0, 1424, 1424, 1424, 1424, 1424, 1424, 1429, 1987,
+     1428, 1486, 1486, 1486, 1486, 1486, 1486, 1989, 1990, 1991,
+     1996, 1427, 1997,    0, 1998,    0,    0, 1425, 1425, 1425,
+     1425, 1425, 1425, 1441,    0,    0,    0, 1429, 1433, 1427,
+     1427, 1427, 1427, 1427, 1427, 1428, 1428, 1428, 1428, 1428,
+     1428, 1430, 1430, 1430, 1430, 1430, 1430, 1436, 1439, 1999,
+     1429, 1429, 1429, 1429, 1429, 1429, 1440, 1433,    0,    0,
+
+     2000, 1441, 1441, 1441, 1441, 1441, 1441, 2001, 2002, 1442,
+     2004, 2005, 1440, 2006, 2007, 1439, 1436, 1443, 1999,    0,
+     1433, 1433, 1433, 1433, 1433, 1433,    0, 1442, 1443, 2000,
+     2008,    0, 1444,    0,    0,    0, 2001, 2002, 1446, 2004,
+     2005, 1440, 2006, 2007, 1439,    0,    0, 2009, 1445, 2010,
+     1436, 1436, 1436, 1436, 1436, 1436, 1442, 1443, 1498, 2008,
+     1446, 1439, 1439, 1439, 1439, 1439, 1439, 1444, 1448, 1440,
+     1440, 1440, 1440, 1440, 1440, 1445, 2009, 1447, 2010,    0,
+        0,    0, 1442, 1442, 1442, 1442, 1442, 1442, 1447, 1446,
+     1443, 1443, 1443, 1443, 1443, 1443, 1498, 1498, 1498, 1498,
+
+     1498, 1498, 2011, 1448, 1445, 1444, 1444, 1444, 1444, 1444,
+     1444, 1446, 1446, 1446, 1446, 1446, 1446, 1447, 1517, 1491,
+     2012, 1445, 1445, 1445, 1445, 1445, 1445,    0, 1493, 2013,
+        0, 2011,    0,    0, 1487, 1487, 1487,    0,    0, 1487,
+     1492, 1448, 1448, 1448, 1448, 1448, 1448, 1487, 1491, 2012,
+     1447, 1447, 1447, 1447, 1447, 1447, 1499, 1493, 2013, 1487,
+     1490, 1490, 1490, 1490, 1490, 1490, 1490, 1490, 1490, 1492,
+        0,    0,    0, 1491, 1491, 1491, 1491, 1491, 1491, 1493,
+     1493, 1493, 1493, 1493, 1493, 1499,    0,    0, 1487,    0,
+     2015, 1517, 1517, 1517, 1517, 1517, 1517, 1492, 1492, 1492,
+
+     1492, 1492, 1492, 1514, 1514, 1514, 1514, 1514, 1514, 1514,
+     1514, 1514,    0, 1499, 1499, 1499, 1499, 1499, 1499, 2015,
+        0,    0,    0, 1487, 1488, 1488, 1488, 1488, 1488, 1488,
+     1488, 1488, 1488, 1488, 1488, 1488, 1488, 1488, 1488, 1488,
+     1488, 1488, 1488, 1488, 1488, 1488, 1488, 1488, 1488, 1488,
+     1488, 1488, 1488, 1488, 1488, 1488, 1488, 1488, 1488, 1488,
+     1488, 1488, 1488, 1488, 1488, 1488, 1488, 1488, 1488, 1488,
+     1488, 1488, 1488, 1488, 1488, 1488, 1488, 1488, 1488, 1488,
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+     2837, 2837, 2838, 2838,    0,    0,    0,    0,    0, 2838,
+     2839, 2839, 2840, 2840,    0, 2840, 2840,    0, 2840, 2840,
+     2841, 2841, 2841, 2842, 2842, 2843, 2843, 2843, 2844, 2844,
+        0,    0,    0,    0,    0, 2844, 2845,    0, 2845, 2846,
+        0, 2846, 2847, 2847, 2847, 2847, 2847, 2847,    0, 2847,
+     2847, 2847,    0, 2847, 2848, 2848,    0, 2848, 2848, 2848,
+
+     2848, 2848, 2848, 2848, 2848, 2848, 2849, 2849, 2849, 2849,
+     2849, 2849,    0, 2849, 2849, 2849,    0, 2849, 2850, 2850,
+        0, 2850, 2850, 2850, 2850, 2850, 2850, 2850, 2850, 2850,
+     2851, 2851,    0, 2851, 2851, 2851, 2851, 2851, 2851, 2851,
+     2851, 2851, 2852, 2852, 2852, 2852, 2852, 2852, 2852, 2852,
+     2852, 2852, 2852, 2853, 2853, 2853, 2853, 2853, 2853, 2853,
+     2853, 2853, 2853, 2853, 2854, 2854,    0, 2854, 2854, 2854,
+     2854, 2854, 2854, 2854, 2854, 2854, 2855, 2855,    0, 2855,
+     2855, 2855, 2855, 2855, 2855, 2855, 2855, 2855, 2856, 2856,
+     2857, 2857,    0, 2857, 2857, 2857, 2857, 2857, 2857, 2857,
+
+     2857, 2857, 2858, 2858,    0, 2858, 2858, 2858, 2858, 2858,
+     2858, 2858, 2858, 2858, 2859, 2859,    0, 2859, 2859, 2859,
+     2859, 2859, 2859, 2859, 2859, 2859, 2860, 2860, 2861, 2861,
+     2862, 2862,    0, 2862, 2862, 2862, 2862, 2862, 2862, 2862,
+     2862, 2862, 2863, 2863,    0, 2863, 2863, 2863, 2863, 2863,
+     2863, 2863, 2863, 2863, 2864, 2864, 2865, 2865,    0, 2865,
+     2865, 2865, 2865, 2865, 2865, 2865, 2865, 2865, 2866, 2866,
+        0, 2866, 2866, 2866, 2866, 2866, 2866, 2866, 2866, 2866,
+     2867, 2867,    0, 2867, 2867, 2867, 2867, 2867, 2867, 2867,
+     2867, 2867, 2868, 2868, 2868, 2868, 2868, 2868, 2868, 2868,
+
+     2868, 2868, 2868, 2868, 2869, 2869,    0,    0, 2869, 2870,
+     2870, 2871, 2871,    0,    0, 2871, 2872, 2872, 2873,    0,
+     2873, 2874,    0, 2874, 2875, 2875,    0, 2875, 2875, 2875,
+     2875, 2875, 2875, 2875, 2875, 2875, 2876, 2876,    0, 2876,
+     2876, 2876, 2876, 2876, 2876, 2876, 2876, 2876, 2877, 2877,
+        0, 2877, 2877, 2877, 2877, 2877, 2877, 2877, 2877, 2877,
+     2878, 2878,    0, 2878, 2878, 2878, 2878, 2878, 2878, 2878,
+     2878, 2878, 2879, 2879, 2879, 2879, 2879, 2879, 2879, 2879,
+     2879, 2879, 2879, 2879, 2880, 2880, 2881, 2881, 2881, 2881,
+     2881, 2881, 2881, 2881, 2881, 2881, 2881, 2881, 2882, 2882,
+
+        0, 2882, 2882, 2882, 2882, 2882, 2882, 2882, 2882, 2882,
+     2883, 2883, 2883, 2883, 2883, 2883, 2883, 2883, 2883, 2883,
+     2883, 2883, 2884, 2884, 2885, 2885, 2886, 2886,    0, 2886,
+     2886, 2886, 2886, 2886, 2886, 2886, 2886, 2886, 2887, 2887,
+     2887, 2887, 2887, 2887, 2887, 2887, 2887, 2887, 2887, 2887,
+     2888, 2888,    0,    0, 2888, 2889, 2889, 2889, 2889, 2889,
+     2889, 2889, 2889, 2889, 2889, 2889, 2889, 2890, 2890, 2890,
+     2890, 2890, 2890, 2890, 2890, 2890, 2890, 2890, 2890, 2891,
+     2891, 2891, 2892, 2892,    0, 2892, 2892, 2892, 2892, 2892,
+     2892, 2892, 2892, 2892, 2893, 2893,    0, 2893, 2893, 2893,
+
+     2893, 2893, 2893, 2893, 2893, 2893, 2894, 2894, 2894, 2895,
+     2895,    0, 2895, 2895, 2895, 2895, 2895, 2895, 2895, 2895,
+     2895, 2896, 2896,    0,    0, 2896, 2897, 2897,    0,    0,
+        0,    0,    0, 2897, 2898, 2898, 2899, 2899,    0,    0,
+     2899, 2899, 2900, 2900, 2900, 2901, 2901, 2901, 2902, 2902,
+     2903, 2903,    0,    0,    0,    0,    0, 2903, 2904,    0,
+     2904, 2905,    0, 2905, 2906, 2906, 2906, 2906, 2906, 2906,
+     2906, 2906, 2906, 2906, 2906, 2906, 2907, 2907, 2907, 2907,
+     2907, 2907, 2907, 2907, 2907, 2907, 2907, 2907, 2908, 2908,
+     2908, 2908, 2908, 2908, 2908, 2908, 2908, 2908, 2908, 2908,
+
+     2909, 2909,    0, 2909, 2909, 2909, 2909, 2909, 2909, 2909,
+     2909, 2909, 2910, 2910,    0, 2910, 2910, 2910, 2910, 2910,
+     2910, 2910, 2910, 2910, 2911, 2911,    0, 2911, 2911, 2911,
+     2911, 2911, 2911, 2911, 2911, 2911, 2912, 2912, 2913, 2913,
+        0, 2913, 2913, 2913, 2913, 2913, 2913, 2913, 2913, 2913,
+     2914, 2914,    0, 2914, 2914, 2914, 2914, 2914, 2914, 2914,
+     2914, 2914, 2915, 2915,    0, 2915, 2915, 2915, 2915, 2915,
+     2915, 2915, 2915, 2915, 2916, 2916,    0, 2916, 2916, 2916,
+     2916, 2916, 2916, 2916, 2916, 2916, 2917, 2917, 2918, 2918,
+     2919, 2919,    0, 2919, 2919, 2919, 2919, 2919, 2919, 2919,
+
+     2919, 2919, 2920, 2920,    0, 2920, 2920, 2920, 2920, 2920,
+     2920, 2920, 2920, 2920, 2921, 2921,    0, 2921, 2921, 2921,
+     2921, 2921, 2921, 2921, 2921, 2921, 2922, 2922,    0,    0,
+     2922, 2923, 2923,    0, 2923, 2923, 2923, 2923, 2923, 2923,
+     2923, 2923, 2923, 2924, 2924,    0, 2924, 2924, 2924, 2924,
+     2924, 2924, 2924, 2924, 2924, 2925, 2925,    0, 2925, 2925,
+     2925, 2925, 2925, 2925, 2925, 2925, 2925, 2926, 2926,    0,
+        0, 2926, 2927, 2927, 2928, 2928,    0,    0, 2928, 2929,
+     2929, 2930,    0, 2930, 2931,    0, 2931, 2932, 2932,    0,
+     2932, 2932, 2932, 2932, 2932, 2932, 2932, 2932, 2932, 2933,
+
+     2933,    0, 2933, 2933, 2933, 2933, 2933, 2933, 2933, 2933,
+     2933, 2934, 2934,    0, 2934, 2934, 2934, 2934, 2934, 2934,
+     2934, 2934, 2934, 2935, 2935,    0, 2935, 2935, 2935, 2935,
+     2935, 2935, 2935, 2935, 2935, 2936, 2936, 2937, 2937,    0,
+     2937, 2937, 2937, 2937, 2937, 2937, 2937, 2937, 2937, 2938,
+     2938,    0, 2938, 2938, 2938, 2938, 2938, 2938, 2938, 2938,
+     2938, 2939, 2939, 2940, 2940, 2940, 2940, 2940, 2940, 2940,
+     2940, 2940, 2940, 2940, 2940, 2941, 2941, 2941, 2941, 2941,
+     2941, 2941, 2941, 2941, 2941, 2941, 2941, 2942, 2942, 2942,
+     2942, 2942, 2942, 2942, 2942, 2942, 2942, 2942, 2942, 2943,
+
+     2943, 2943, 2943, 2943, 2943, 2943, 2943, 2943, 2943, 2943,
+     2943, 2944, 2944, 2944, 2944, 2944, 2944, 2944, 2944, 2944,
+     2944, 2944, 2944, 2945, 2945, 2945, 2945, 2945, 2945, 2945,
+     2945, 2945, 2945, 2945, 2945, 2946, 2946, 2946, 2946, 2946,
+     2946, 2946, 2946, 2946, 2946, 2946, 2946, 2947, 2947, 2947,
+     2947, 2947, 2947, 2947, 2947, 2947, 2947, 2947, 2947, 2948,
+     2948, 2948, 2948, 2948, 2948, 2948, 2948, 2948, 2948, 2948,
+     2948, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786, 2786,
+     2786, 2786, 2786, 2786, 2786, 2786
     } ;
 
 /* The intent behind this definition is that it'll catch
@@ -5447,10 +5603,13 @@ do {\
 
 
 
+ 
 
 
 
-#line 5455 "ob_proxy_parser_utf8_lex.c"
+/* limit the length of int_num from 1 to 17 in case of int64_t out of bound, 17 -> [ ( length of 2^64 ) - 2 ]*/
+/* binlog relate SQL */
+#line 5614 "ob_proxy_parser_utf8_lex.c"
 
 #define INITIAL 0
 #define hint 1
@@ -5477,9 +5636,10 @@ do {\
 #define prepare 22
 #define insert_all_expr 23
 #define set_expr 24
-#define show_topology 25
-#define show_tables 26
-#define proxy_icmd_state 27
+#define show_elastic_id 25
+#define show_topology 26
+#define show_tables 27
+#define proxy_icmd_state 28
 
 #ifndef YY_NO_UNISTD_H
 /* Special case for "unistd.h", since it is non-ANSI. We include it way
@@ -5721,11 +5881,11 @@ YY_DECL
 	register int yy_act;
     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
 
-#line 388 "ob_proxy_parser_utf8.l"
+#line 400 "ob_proxy_parser_utf8.l"
 
 
  /* basic dml stmt: */
-#line 5731 "ob_proxy_parser_utf8_lex.c"
+#line 5891 "ob_proxy_parser_utf8_lex.c"
 
     yylval = yylval_param;
 
@@ -5782,13 +5942,13 @@ YY_DECL
 			while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 				{
 				yy_current_state = (int) yy_def[yy_current_state];
-				if ( yy_current_state >= 2597 )
+				if ( yy_current_state >= 2787 )
 					yy_c = yy_meta[(unsigned int) yy_c];
 				}
 			yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
 			++yy_cp;
 			}
-		while ( yy_base[yy_current_state] != 17443 );
+		while ( yy_base[yy_current_state] != 17872 );
 
 yy_find_action:
 		yy_act = yy_accept[yy_current_state];
@@ -5814,86 +5974,86 @@ YY_DECL
 
 case 1:
 YY_RULE_SETUP
-#line 391 "ob_proxy_parser_utf8.l"
+#line 403 "ob_proxy_parser_utf8.l"
 { SET_DML_STMT(OBPROXY_T_SELECT); PUSH_STATE(in_expr); return SELECT; }
 	YY_BREAK
 case 2:
 YY_RULE_SETUP
-#line 392 "ob_proxy_parser_utf8.l"
+#line 404 "ob_proxy_parser_utf8.l"
 { SET_DML_STMT(OBPROXY_T_DELETE); PUSH_STATE_IF_NOT_ICMD(in_expr); return DELETE; }
 	YY_BREAK
 case 3:
 YY_RULE_SETUP
-#line 393 "ob_proxy_parser_utf8.l"
+#line 405 "ob_proxy_parser_utf8.l"
 { SET_DML_STMT(OBPROXY_T_INSERT); return INSERT; }
 	YY_BREAK
 case 4:
 YY_RULE_SETUP
-#line 394 "ob_proxy_parser_utf8.l"
+#line 406 "ob_proxy_parser_utf8.l"
 { SET_DML_STMT(OBPROXY_T_UPDATE); return UPDATE; }
 	YY_BREAK
 case 5:
 YY_RULE_SETUP
-#line 395 "ob_proxy_parser_utf8.l"
+#line 407 "ob_proxy_parser_utf8.l"
 { SET_DML_STMT(OBPROXY_T_REPLACE); return REPLACE; }
 	YY_BREAK
 case 6:
 YY_RULE_SETUP
-#line 396 "ob_proxy_parser_utf8.l"
+#line 408 "ob_proxy_parser_utf8.l"
 { SET_DML_STMT(OBPROXY_T_MERGE); return MERGE; }
 	YY_BREAK
 case 7:
 YY_RULE_SETUP
-#line 397 "ob_proxy_parser_utf8.l"
+#line 409 "ob_proxy_parser_utf8.l"
 { SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW; }
 	YY_BREAK
 case 8:
 YY_RULE_SETUP
-#line 398 "ob_proxy_parser_utf8.l"
+#line 410 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(XA); }
 	YY_BREAK
 /* if begin is for starting transaction, will set has_anonymous_block = false in yacc */
 case 9:
 YY_RULE_SETUP
-#line 400 "ob_proxy_parser_utf8.l"
+#line 412 "ob_proxy_parser_utf8.l"
 { SET_HAS_ANONYMOUS_BLOCK(); RETURN_NON_RESERVED_KEYWORD(BEGI); }
 	YY_BREAK
 case 10:
 YY_RULE_SETUP
-#line 401 "ob_proxy_parser_utf8.l"
+#line 413 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(START); }
 	YY_BREAK
 case 11:
 YY_RULE_SETUP
-#line 402 "ob_proxy_parser_utf8.l"
+#line 414 "ob_proxy_parser_utf8.l"
 { SET_BASIC_STMT(OBPROXY_T_COMMIT); RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case 12:
 YY_RULE_SETUP
-#line 403 "ob_proxy_parser_utf8.l"
+#line 415 "ob_proxy_parser_utf8.l"
 { SET_BASIC_STMT(OBPROXY_T_ROLLBACK); RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case 13:
 YY_RULE_SETUP
-#line 404 "ob_proxy_parser_utf8.l"
+#line 416 "ob_proxy_parser_utf8.l"
 { SET_BASIC_STMT(OBPROXY_T_SET); PUSH_STATE_IF_NOT_ICMD(set_expr); return SET; }
 	YY_BREAK
 case 14:
 YY_RULE_SETUP
-#line 405 "ob_proxy_parser_utf8.l"
+#line 417 "ob_proxy_parser_utf8.l"
 { SET_BASIC_STMT(OBPROXY_T_CALL); return CALL; }
 	YY_BREAK
 case 15:
 YY_RULE_SETUP
-#line 406 "ob_proxy_parser_utf8.l"
+#line 418 "ob_proxy_parser_utf8.l"
 { SET_HAS_ANONYMOUS_BLOCK(); PUSH_STATE(in_anonymous_block); }
 	YY_BREAK
 case 16:
 YY_RULE_SETUP
-#line 407 "ob_proxy_parser_utf8.l"
+#line 419 "ob_proxy_parser_utf8.l"
 { ObProxyParseResult *p = ob_proxy_parser_utf8_yyget_extra(yyscanner);
                    if (OB_NOTNULL(p)) {
-                     if (OBPROXY_T_INSERT == p->cur_stmt_type_) 
+                     if (OBPROXY_T_INSERT == p->cur_stmt_type_)
                        PUSH_STATE(insert_all_expr);
                    }
                    return WHEN; }
@@ -5901,338 +6061,338 @@ YY_RULE_SETUP
 /* basic ddl stmt */
 case 17:
 YY_RULE_SETUP
-#line 415 "ob_proxy_parser_utf8.l"
+#line 427 "ob_proxy_parser_utf8.l"
 { return CREATE; }
 	YY_BREAK
 case 18:
 YY_RULE_SETUP
-#line 416 "ob_proxy_parser_utf8.l"
+#line 428 "ob_proxy_parser_utf8.l"
 { return DROP; }
 	YY_BREAK
 case 19:
 YY_RULE_SETUP
-#line 417 "ob_proxy_parser_utf8.l"
+#line 429 "ob_proxy_parser_utf8.l"
 { return ALTER; }
 	YY_BREAK
 case 20:
 YY_RULE_SETUP
-#line 418 "ob_proxy_parser_utf8.l"
+#line 430 "ob_proxy_parser_utf8.l"
 { return TRUNCATE; }
 	YY_BREAK
 case 21:
 YY_RULE_SETUP
-#line 419 "ob_proxy_parser_utf8.l"
+#line 431 "ob_proxy_parser_utf8.l"
 { return RENAME; }
 	YY_BREAK
 case 22:
 YY_RULE_SETUP
-#line 420 "ob_proxy_parser_utf8.l"
+#line 432 "ob_proxy_parser_utf8.l"
 { return INDEX; }
 	YY_BREAK
 case 23:
 YY_RULE_SETUP
-#line 421 "ob_proxy_parser_utf8.l"
+#line 433 "ob_proxy_parser_utf8.l"
 { return TABLE; }
 	YY_BREAK
 case 24:
 YY_RULE_SETUP
-#line 422 "ob_proxy_parser_utf8.l"
+#line 434 "ob_proxy_parser_utf8.l"
 { return STATUS; }
 	YY_BREAK
 case 25:
 YY_RULE_SETUP
-#line 423 "ob_proxy_parser_utf8.l"
+#line 435 "ob_proxy_parser_utf8.l"
 { return FROM; }
 	YY_BREAK
 case 26:
 YY_RULE_SETUP
-#line 424 "ob_proxy_parser_utf8.l"
+#line 436 "ob_proxy_parser_utf8.l"
 { return UNIQUE; }
 	YY_BREAK
 /* ps stmt */
 case 27:
 YY_RULE_SETUP
-#line 427 "ob_proxy_parser_utf8.l"
+#line 439 "ob_proxy_parser_utf8.l"
 { return USING; }
 	YY_BREAK
 case 28:
 YY_RULE_SETUP
-#line 428 "ob_proxy_parser_utf8.l"
+#line 440 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(prepare); return PREPARE; }
 	YY_BREAK
 case 29:
 YY_RULE_SETUP
-#line 429 "ob_proxy_parser_utf8.l"
+#line 441 "ob_proxy_parser_utf8.l"
 { return EXECUTE; }
 	YY_BREAK
 case 30:
 YY_RULE_SETUP
-#line 430 "ob_proxy_parser_utf8.l"
-{ return DEALLOCATE; }   
+#line 442 "ob_proxy_parser_utf8.l"
+{ return DEALLOCATE; }
 	YY_BREAK
 /* oracle ddl stmt */
 case 31:
 YY_RULE_SETUP
-#line 434 "ob_proxy_parser_utf8.l"
+#line 446 "ob_proxy_parser_utf8.l"
 { return GRANT; }
 	YY_BREAK
 case 32:
 YY_RULE_SETUP
-#line 435 "ob_proxy_parser_utf8.l"
+#line 447 "ob_proxy_parser_utf8.l"
 { return REVOKE; }
 	YY_BREAK
 case 33:
 YY_RULE_SETUP
-#line 436 "ob_proxy_parser_utf8.l"
+#line 448 "ob_proxy_parser_utf8.l"
 { return ANALYZE; }
 	YY_BREAK
 case 34:
 YY_RULE_SETUP
-#line 437 "ob_proxy_parser_utf8.l"
+#line 449 "ob_proxy_parser_utf8.l"
 { return PURGE; }
 	YY_BREAK
 case 35:
 YY_RULE_SETUP
-#line 438 "ob_proxy_parser_utf8.l"
+#line 450 "ob_proxy_parser_utf8.l"
 { return COMMENT; }
 	YY_BREAK
 case 36:
 YY_RULE_SETUP
-#line 439 "ob_proxy_parser_utf8.l"
+#line 451 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(FLASHBACK); }
 	YY_BREAK
 case 37:
 YY_RULE_SETUP
-#line 440 "ob_proxy_parser_utf8.l"
+#line 452 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(AUDIT); }
 	YY_BREAK
 case 38:
 YY_RULE_SETUP
-#line 441 "ob_proxy_parser_utf8.l"
+#line 453 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(NOAUDIT); }
 	YY_BREAK
 case 39:
 YY_RULE_SETUP
-#line 443 "ob_proxy_parser_utf8.l"
+#line 455 "ob_proxy_parser_utf8.l"
 { return GROUP;}
 	YY_BREAK
 case 40:
 YY_RULE_SETUP
-#line 444 "ob_proxy_parser_utf8.l"
+#line 456 "ob_proxy_parser_utf8.l"
 { return HAVING;}
 	YY_BREAK
 case 41:
 YY_RULE_SETUP
-#line 445 "ob_proxy_parser_utf8.l"
+#line 457 "ob_proxy_parser_utf8.l"
 { return ORDER;}
 	YY_BREAK
 case 42:
 YY_RULE_SETUP
-#line 446 "ob_proxy_parser_utf8.l"
+#line 458 "ob_proxy_parser_utf8.l"
 { return FOR;}
 	YY_BREAK
 case 43:
 YY_RULE_SETUP
-#line 447 "ob_proxy_parser_utf8.l"
+#line 459 "ob_proxy_parser_utf8.l"
 { return UNION;}
 	YY_BREAK
 case 44:
 YY_RULE_SETUP
-#line 448 "ob_proxy_parser_utf8.l"
+#line 460 "ob_proxy_parser_utf8.l"
 { return AS; }
 	YY_BREAK
 case 45:
 YY_RULE_SETUP
-#line 449 "ob_proxy_parser_utf8.l"
+#line 461 "ob_proxy_parser_utf8.l"
 { return WHERE; }
 	YY_BREAK
 case 46:
 YY_RULE_SETUP
-#line 450 "ob_proxy_parser_utf8.l"
+#line 462 "ob_proxy_parser_utf8.l"
 { return VALUES; }
 	YY_BREAK
 case 47:
 YY_RULE_SETUP
-#line 451 "ob_proxy_parser_utf8.l"
+#line 463 "ob_proxy_parser_utf8.l"
 { return VALUES; }
 	YY_BREAK
 case 48:
 YY_RULE_SETUP
-#line 452 "ob_proxy_parser_utf8.l"
+#line 464 "ob_proxy_parser_utf8.l"
 { SET_HAS_EXPLAIN(); return EXPLAIN; }
 	YY_BREAK
 case 49:
 YY_RULE_SETUP
-#line 453 "ob_proxy_parser_utf8.l"
+#line 465 "ob_proxy_parser_utf8.l"
 { SET_HAS_EXPLAIN(); return DESC; }
 	YY_BREAK
 case 50:
 YY_RULE_SETUP
-#line 454 "ob_proxy_parser_utf8.l"
+#line 466 "ob_proxy_parser_utf8.l"
 { SET_HAS_EXPLAIN(); return DESCRIBE; }
 	YY_BREAK
 /*change from non_reserved to reserved according https://dev.mysql.com/doc/refman/5.6/en/keywords.html*/
 case 51:
 YY_RULE_SETUP
-#line 456 "ob_proxy_parser_utf8.l"
+#line 468 "ob_proxy_parser_utf8.l"
 { return READ; }
 	YY_BREAK
 case 52:
 YY_RULE_SETUP
-#line 457 "ob_proxy_parser_utf8.l"
+#line 469 "ob_proxy_parser_utf8.l"
 { return WITH; }
 	YY_BREAK
 case 53:
 YY_RULE_SETUP
-#line 458 "ob_proxy_parser_utf8.l"
+#line 470 "ob_proxy_parser_utf8.l"
 { return USE; }
 	YY_BREAK
 case 54:
 YY_RULE_SETUP
-#line 459 "ob_proxy_parser_utf8.l"
+#line 471 "ob_proxy_parser_utf8.l"
 { return LIMIT; }
 	YY_BREAK
 case 55:
 YY_RULE_SETUP
-#line 460 "ob_proxy_parser_utf8.l"
+#line 472 "ob_proxy_parser_utf8.l"
 { return ALL; }
 	YY_BREAK
 case 56:
 YY_RULE_SETUP
-#line 461 "ob_proxy_parser_utf8.l"
+#line 473 "ob_proxy_parser_utf8.l"
 { return LIKE; }
 	YY_BREAK
 case 57:
 YY_RULE_SETUP
-#line 462 "ob_proxy_parser_utf8.l"
+#line 474 "ob_proxy_parser_utf8.l"
 { return PARTITION; }
 	YY_BREAK
 case 58:
 YY_RULE_SETUP
-#line 463 "ob_proxy_parser_utf8.l"
+#line 475 "ob_proxy_parser_utf8.l"
 { return BINARY; }
 	YY_BREAK
 case 59:
 YY_RULE_SETUP
-#line 464 "ob_proxy_parser_utf8.l"
-{ return GROUP_NAME; }
+#line 476 "ob_proxy_parser_utf8.l"
+{ RETURN_NON_RESERVED_KEYWORD(GROUP_NAME); }
 	YY_BREAK
 /* to make bison easy, do not return these reserved keyword in non strict mode */
 case 60:
 YY_RULE_SETUP
-#line 467 "ob_proxy_parser_utf8.l"
+#line 479 "ob_proxy_parser_utf8.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case 61:
 YY_RULE_SETUP
-#line 468 "ob_proxy_parser_utf8.l"
+#line 480 "ob_proxy_parser_utf8.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case 62:
 YY_RULE_SETUP
-#line 469 "ob_proxy_parser_utf8.l"
+#line 481 "ob_proxy_parser_utf8.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case 63:
 YY_RULE_SETUP
-#line 470 "ob_proxy_parser_utf8.l"
+#line 482 "ob_proxy_parser_utf8.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case 64:
 YY_RULE_SETUP
-#line 471 "ob_proxy_parser_utf8.l"
+#line 483 "ob_proxy_parser_utf8.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
 /* no reserved keyword , don't forget to add these keyword in .y */
 /*refer: https://dev.mysql.com/doc/refman/5.6/en/keywords.html*/
 case 65:
 YY_RULE_SETUP
-#line 475 "ob_proxy_parser_utf8.l"
+#line 487 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(QUICK); }
 	YY_BREAK
 case 66:
 YY_RULE_SETUP
-#line 476 "ob_proxy_parser_utf8.l"
+#line 488 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(COUNT); }
 	YY_BREAK
 case 67:
 YY_RULE_SETUP
-#line 477 "ob_proxy_parser_utf8.l"
+#line 489 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(WARNINGS); }
 	YY_BREAK
 case 68:
 YY_RULE_SETUP
-#line 478 "ob_proxy_parser_utf8.l"
+#line 490 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(ERRORS); }
 	YY_BREAK
 case 69:
 YY_RULE_SETUP
-#line 479 "ob_proxy_parser_utf8.l"
+#line 491 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(TRACE); }
 	YY_BREAK
 case 70:
 YY_RULE_SETUP
-#line 480 "ob_proxy_parser_utf8.l"
+#line 492 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(TRANSACTION); }
 	YY_BREAK
 case 71:
 YY_RULE_SETUP
-#line 482 "ob_proxy_parser_utf8.l"
+#line 494 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(ONLY); }
 	YY_BREAK
 case 72:
 YY_RULE_SETUP
-#line 484 "ob_proxy_parser_utf8.l"
+#line 496 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(CONSISTENT); }
 	YY_BREAK
 case 73:
 YY_RULE_SETUP
-#line 485 "ob_proxy_parser_utf8.l"
+#line 497 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(SNAPSHOT); }
 	YY_BREAK
 case 74:
 YY_RULE_SETUP
-#line 487 "ob_proxy_parser_utf8.l"
+#line 499 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(HELP); }
 	YY_BREAK
 /*set names*/
 case 75:
 /* rule 75 can match eol */
 YY_RULE_SETUP
-#line 491 "ob_proxy_parser_utf8.l"
+#line 503 "ob_proxy_parser_utf8.l"
 { SET_BASIC_STMT(OBPROXY_T_SET_NAMES); return SET_NAMES; }
 	YY_BREAK
 /*set charset*/
 case 76:
 /* rule 76 can match eol */
 YY_RULE_SETUP
-#line 493 "ob_proxy_parser_utf8.l"
+#line 505 "ob_proxy_parser_utf8.l"
 { SET_BASIC_STMT(OBPROXY_T_SET_CHARSET); return SET_CHARSET; }
 	YY_BREAK
 /*set passwd*/
 case 77:
 /* rule 77 can match eol */
 YY_RULE_SETUP
-#line 495 "ob_proxy_parser_utf8.l"
+#line 507 "ob_proxy_parser_utf8.l"
 { SET_BASIC_STMT(OBPROXY_T_SET_PASSWORD); return SET_PASSWORD; }
 	YY_BREAK
 /*set default*/
 case 78:
 /* rule 78 can match eol */
 YY_RULE_SETUP
-#line 497 "ob_proxy_parser_utf8.l"
+#line 509 "ob_proxy_parser_utf8.l"
 { SET_BASIC_STMT(OBPROXY_T_SET_DEFAULT); return SET_DEFAULT; }
 	YY_BREAK
 case 79:
 /* rule 79 can match eol */
 YY_RULE_SETUP
-#line 499 "ob_proxy_parser_utf8.l"
+#line 511 "ob_proxy_parser_utf8.l"
 { SET_BASIC_STMT(OBPROXY_T_SET_OB_READ_CONSISTENCY); return SET_OB_READ_CONSISTENCY; }
 	YY_BREAK
 case 80:
 /* rule 80 can match eol */
 YY_RULE_SETUP
-#line 500 "ob_proxy_parser_utf8.l"
+#line 512 "ob_proxy_parser_utf8.l"
 { SET_BASIC_STMT(OBPROXY_T_SET_TX_READ_ONLY); return SET_TX_READ_ONLY; }
 	YY_BREAK
 /*internal cmd*/
@@ -6240,453 +6400,459 @@ YY_RULE_SETUP
 case 81:
 /* rule 81 can match eol */
 YY_RULE_SETUP
-#line 504 "ob_proxy_parser_utf8.l"
+#line 516 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_NET); return SHOW_PROXYNET; }
 	YY_BREAK
 case 82:
 YY_RULE_SETUP
-#line 505 "ob_proxy_parser_utf8.l"
+#line 517 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(THREAD); }
 	YY_BREAK
 case 83:
 YY_RULE_SETUP
-#line 506 "ob_proxy_parser_utf8.l"
+#line 518 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(CONNECTION); }
 	YY_BREAK
 case 84:
 YY_RULE_SETUP
-#line 508 "ob_proxy_parser_utf8.l"
+#line 520 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(OFFSET); }
 	YY_BREAK
 /*show session*/
 case 85:
 /* rule 85 can match eol */
 YY_RULE_SETUP
-#line 511 "ob_proxy_parser_utf8.l"
+#line 523 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_GLOBAL_SESSION); return SHOW_GLOBALSESSION; }
 	YY_BREAK
 case 86:
 /* rule 86 can match eol */
 YY_RULE_SETUP
-#line 512 "ob_proxy_parser_utf8.l"
+#line 524 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_SESSION); return SHOW_PROXYSESSION; }
 	YY_BREAK
 case 87:
 /* rule 87 can match eol */
 YY_RULE_SETUP
-#line 513 "ob_proxy_parser_utf8.l"
+#line 525 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_PROCESSLIST); return SHOW_PROCESSLIST; }
 	YY_BREAK
 case 88:
 YY_RULE_SETUP
-#line 514 "ob_proxy_parser_utf8.l"
+#line 526 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(ATTRIBUTE); }
 	YY_BREAK
 case 89:
 YY_RULE_SETUP
-#line 515 "ob_proxy_parser_utf8.l"
+#line 527 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(VARIABLES); }
 	YY_BREAK
 case 90:
 YY_RULE_SETUP
-#line 517 "ob_proxy_parser_utf8.l"
+#line 529 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(STAT); }
 	YY_BREAK
 /*show config*/
 case 91:
 /* rule 91 can match eol */
 YY_RULE_SETUP
-#line 520 "ob_proxy_parser_utf8.l"
+#line 532 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_CONFIG); PUSH_STATE(proxy_icmd_state); return SHOW_PROXYCONFIG; }
 	YY_BREAK
 case 92:
 YY_RULE_SETUP
-#line 522 "ob_proxy_parser_utf8.l"
+#line 534 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(DIFF); }
 	YY_BREAK
 case 93:
 YY_RULE_SETUP
-#line 523 "ob_proxy_parser_utf8.l"
+#line 535 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(USER); }
 	YY_BREAK
 case 94:
 YY_RULE_SETUP
-#line 524 "ob_proxy_parser_utf8.l"
+#line 536 "ob_proxy_parser_utf8.l"
 { POP_STATE(); return LIKE; }
 	YY_BREAK
 /*show sm*/
 case 95:
 /* rule 95 can match eol */
 YY_RULE_SETUP
-#line 527 "ob_proxy_parser_utf8.l"
+#line 539 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_SM); return SHOW_PROXYSM; }
 	YY_BREAK
 /*show cluster*/
 case 96:
 /* rule 96 can match eol */
 YY_RULE_SETUP
-#line 530 "ob_proxy_parser_utf8.l"
+#line 542 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_CLUSTER); return SHOW_PROXYCLUSTER; }
 	YY_BREAK
 /*show resource*/
 case 97:
 /* rule 97 can match eol */
 YY_RULE_SETUP
-#line 533 "ob_proxy_parser_utf8.l"
+#line 545 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_RESOURCE); return SHOW_PROXYRESOURCE; }
 	YY_BREAK
 /*show congestion*/
 case 98:
 /* rule 98 can match eol */
 YY_RULE_SETUP
-#line 536 "ob_proxy_parser_utf8.l"
+#line 548 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_CONGESTION); return SHOW_PROXYCONGESTION; }
 	YY_BREAK
 /*show route*/
 case 99:
 /* rule 99 can match eol */
 YY_RULE_SETUP
-#line 539 "ob_proxy_parser_utf8.l"
+#line 551 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_ROUTE); return SHOW_PROXYROUTE; }
 	YY_BREAK
 case 100:
 YY_RULE_SETUP
-#line 541 "ob_proxy_parser_utf8.l"
+#line 553 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(ROUTINE); }
 	YY_BREAK
 /*show vip*/
 case 101:
 /* rule 101 can match eol */
 YY_RULE_SETUP
-#line 544 "ob_proxy_parser_utf8.l"
+#line 556 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_VIP); return SHOW_PROXYVIP; }
 	YY_BREAK
 /*show memory*/
 case 102:
 /* rule 102 can match eol */
 YY_RULE_SETUP
-#line 547 "ob_proxy_parser_utf8.l"
+#line 559 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_MEMORY); return SHOW_PROXYMEMORY; }
 	YY_BREAK
 case 103:
 YY_RULE_SETUP
-#line 548 "ob_proxy_parser_utf8.l"
+#line 560 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(OBJPOOL); }
 	YY_BREAK
 /*show sqlaudit*/
 case 104:
 /* rule 104 can match eol */
 YY_RULE_SETUP
-#line 551 "ob_proxy_parser_utf8.l"
+#line 563 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_SQLAUDIT); return SHOW_SQLAUDIT; }
 	YY_BREAK
 /*show warnlog*/
 case 105:
 /* rule 105 can match eol */
 YY_RULE_SETUP
-#line 554 "ob_proxy_parser_utf8.l"
+#line 566 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_WARNLOG); return SHOW_WARNLOG; }
 	YY_BREAK
 /*show stat*/
 case 106:
 /* rule 106 can match eol */
 YY_RULE_SETUP
-#line 557 "ob_proxy_parser_utf8.l"
+#line 569 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_STAT); return SHOW_PROXYSTAT; }
 	YY_BREAK
 case 107:
 YY_RULE_SETUP
-#line 558 "ob_proxy_parser_utf8.l"
+#line 570 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(REFRESH); }
 	YY_BREAK
 /*show trace*/
 case 108:
 /* rule 108 can match eol */
 YY_RULE_SETUP
-#line 561 "ob_proxy_parser_utf8.l"
+#line 573 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_TRACE); return SHOW_PROXYTRACE; }
 	YY_BREAK
 /*show info*/
 case 109:
 /* rule 109 can match eol */
 YY_RULE_SETUP
-#line 564 "ob_proxy_parser_utf8.l"
+#line 576 "ob_proxy_parser_utf8.l"
 { SET_ICMD_STMT(OBPROXY_T_ICMD_SHOW_INFO); return SHOW_PROXYINFO; }
 	YY_BREAK
 case 110:
 YY_RULE_SETUP
-#line 565 "ob_proxy_parser_utf8.l"
+#line 577 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(UPGRADE); }
 	YY_BREAK
 case 111:
 YY_RULE_SETUP
-#line 566 "ob_proxy_parser_utf8.l"
+#line 578 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(IDC); }
 	YY_BREAK
 case 112:
 /* rule 112 can match eol */
 YY_RULE_SETUP
-#line 568 "ob_proxy_parser_utf8.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); PUSH_STATE(show_topology); return SHOW_TOPOLOGY; }
+#line 580 "ob_proxy_parser_utf8.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); PUSH_STATE(show_elastic_id ); return SHOW_ELASTIC_ID; }
 	YY_BREAK
 case 113:
 YY_RULE_SETUP
-#line 569 "ob_proxy_parser_utf8.l"
+#line 581 "ob_proxy_parser_utf8.l"
 { POP_STATE(); PUSH_STATE(INITIAL); return FROM; }
 	YY_BREAK
 case 114:
 YY_RULE_SETUP
-#line 570 "ob_proxy_parser_utf8.l"
+#line 582 "ob_proxy_parser_utf8.l"
 { POP_STATE(); PUSH_STATE(INITIAL); return WHERE; }
 	YY_BREAK
-case YY_STATE_EOF(show_topology):
-#line 571 "ob_proxy_parser_utf8.l"
+case YY_STATE_EOF(show_elastic_id):
+#line 583 "ob_proxy_parser_utf8.l"
 { return END_P; }
 	YY_BREAK
 case 115:
 /* rule 115 can match eol */
 YY_RULE_SETUP
-#line 572 "ob_proxy_parser_utf8.l"
+#line 584 "ob_proxy_parser_utf8.l"
 { }
 	YY_BREAK
 case 116:
 YY_RULE_SETUP
-#line 573 "ob_proxy_parser_utf8.l"
+#line 585 "ob_proxy_parser_utf8.l"
 { POP_STATE(); PUSH_STATE(INITIAL); return yytext[0]; }
 	YY_BREAK
 case 117:
 YY_RULE_SETUP
-#line 574 "ob_proxy_parser_utf8.l"
+#line 586 "ob_proxy_parser_utf8.l"
 { return ERROR; }
 	YY_BREAK
 case 118:
 /* rule 118 can match eol */
 YY_RULE_SETUP
-#line 576 "ob_proxy_parser_utf8.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_DB_VERSION; }
+#line 588 "ob_proxy_parser_utf8.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_TOPOLOGY; }
 	YY_BREAK
 case 119:
 /* rule 119 can match eol */
 YY_RULE_SETUP
-#line 577 "ob_proxy_parser_utf8.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_DATABASES; }
+#line 590 "ob_proxy_parser_utf8.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_DB_VERSION; }
 	YY_BREAK
 case 120:
 /* rule 120 can match eol */
 YY_RULE_SETUP
-#line 579 "ob_proxy_parser_utf8.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); PUSH_STATE(show_tables); return SHOW_TABLES; }
+#line 591 "ob_proxy_parser_utf8.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_DATABASES; }
 	YY_BREAK
 case 121:
 /* rule 121 can match eol */
 YY_RULE_SETUP
-#line 580 "ob_proxy_parser_utf8.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); PUSH_STATE(show_tables); return SHOW_FULL_TABLES; }
+#line 593 "ob_proxy_parser_utf8.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); PUSH_STATE(show_tables); return SHOW_TABLES; }
 	YY_BREAK
 case 122:
+/* rule 122 can match eol */
 YY_RULE_SETUP
-#line 582 "ob_proxy_parser_utf8.l"
-{ POP_STATE(); PUSH_STATE(INITIAL); return FROM; }
+#line 594 "ob_proxy_parser_utf8.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); PUSH_STATE(show_tables); return SHOW_FULL_TABLES; }
 	YY_BREAK
 case 123:
 YY_RULE_SETUP
-#line 583 "ob_proxy_parser_utf8.l"
+#line 596 "ob_proxy_parser_utf8.l"
+{ POP_STATE(); PUSH_STATE(INITIAL); return FROM; }
+	YY_BREAK
+case 124:
+YY_RULE_SETUP
+#line 597 "ob_proxy_parser_utf8.l"
 { POP_STATE(); PUSH_STATE(INITIAL); return LIKE; }
 	YY_BREAK
 case YY_STATE_EOF(show_tables):
-#line 584 "ob_proxy_parser_utf8.l"
+#line 598 "ob_proxy_parser_utf8.l"
 { return END_P; }
 	YY_BREAK
-case 124:
-/* rule 124 can match eol */
-YY_RULE_SETUP
-#line 585 "ob_proxy_parser_utf8.l"
-{ }
-	YY_BREAK
 case 125:
+/* rule 125 can match eol */
 YY_RULE_SETUP
-#line 586 "ob_proxy_parser_utf8.l"
-{ POP_STATE(); PUSH_STATE(INITIAL); return yytext[0]; }
+#line 599 "ob_proxy_parser_utf8.l"
+{ }
 	YY_BREAK
 case 126:
 YY_RULE_SETUP
-#line 587 "ob_proxy_parser_utf8.l"
-{ return ERROR; }
+#line 600 "ob_proxy_parser_utf8.l"
+{ POP_STATE(); PUSH_STATE(INITIAL); return yytext[0]; }
 	YY_BREAK
 case 127:
-/* rule 127 can match eol */
 YY_RULE_SETUP
-#line 588 "ob_proxy_parser_utf8.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_COLUMNS; }
+#line 601 "ob_proxy_parser_utf8.l"
+{ return ERROR; }
 	YY_BREAK
 case 128:
 /* rule 128 can match eol */
 YY_RULE_SETUP
-#line 589 "ob_proxy_parser_utf8.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_INDEX; }
+#line 602 "ob_proxy_parser_utf8.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_COLUMNS; }
 	YY_BREAK
 case 129:
 /* rule 129 can match eol */
 YY_RULE_SETUP
-#line 591 "ob_proxy_parser_utf8.l"
-{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_CREATE_TABLE; }
+#line 603 "ob_proxy_parser_utf8.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_INDEX; }
 	YY_BREAK
 case 130:
 /* rule 130 can match eol */
 YY_RULE_SETUP
-#line 592 "ob_proxy_parser_utf8.l"
-{ SET_DML_STMT(OBPROXY_T_SELECT); return SELECT_DATABASE; }
+#line 605 "ob_proxy_parser_utf8.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW); return SHOW_CREATE_TABLE; }
 	YY_BREAK
 case 131:
 /* rule 131 can match eol */
 YY_RULE_SETUP
-#line 593 "ob_proxy_parser_utf8.l"
-{ SET_DML_STMT(OBPROXY_T_SELECT_PROXY_VERSION); return SELECT_PROXY_VERSION; }
+#line 606 "ob_proxy_parser_utf8.l"
+{ SET_DML_STMT(OBPROXY_T_SELECT); return SELECT_DATABASE; }
 	YY_BREAK
-/*alter config*/
 case 132:
 /* rule 132 can match eol */
 YY_RULE_SETUP
-#line 596 "ob_proxy_parser_utf8.l"
-{ SET_ICMD_STMT(OBPROXY_T_ICMD_ALTER_CONFIG); return ALTER_PROXYCONFIG; }
+#line 607 "ob_proxy_parser_utf8.l"
+{ SET_DML_STMT(OBPROXY_T_SELECT_PROXY_VERSION); return SELECT_PROXY_VERSION; }
 	YY_BREAK
-/*alter resource*/
+/*alter config*/
 case 133:
 /* rule 133 can match eol */
 YY_RULE_SETUP
-#line 599 "ob_proxy_parser_utf8.l"
-{ SET_ICMD_STMT(OBPROXY_T_ICMD_ALTER_RESOURCE); return ALTER_PROXYRESOURCE; }
+#line 610 "ob_proxy_parser_utf8.l"
+{ SET_ICMD_STMT(OBPROXY_T_ICMD_ALTER_CONFIG); return ALTER_PROXYCONFIG; }
 	YY_BREAK
-/*ping proxy*/
+/*alter resource*/
 case 134:
 /* rule 134 can match eol */
 YY_RULE_SETUP
-#line 602 "ob_proxy_parser_utf8.l"
-{ SET_ICMD_STMT(OBPROXY_T_PING_PROXY); return PING_PROXY; }
+#line 613 "ob_proxy_parser_utf8.l"
+{ SET_ICMD_STMT(OBPROXY_T_ICMD_ALTER_RESOURCE); return ALTER_PROXYRESOURCE; }
 	YY_BREAK
-/*kill*/
+/*ping proxy*/
 case 135:
 /* rule 135 can match eol */
 YY_RULE_SETUP
-#line 605 "ob_proxy_parser_utf8.l"
-{ SET_ICMD_STMT(OBPROXY_T_ICMD_KILL_SESSION); return KILL_PROXYSESSION; }
+#line 616 "ob_proxy_parser_utf8.l"
+{ SET_ICMD_STMT(OBPROXY_T_PING_PROXY); return PING_PROXY; }
 	YY_BREAK
+/*kill*/
 case 136:
 /* rule 136 can match eol */
 YY_RULE_SETUP
-#line 606 "ob_proxy_parser_utf8.l"
-{ SET_ICMD_STMT(OBPROXY_T_ICMD_KILL_GLOBAL_SESSION); return KILL_GLOBALSESSION; }
+#line 619 "ob_proxy_parser_utf8.l"
+{ SET_ICMD_STMT(OBPROXY_T_ICMD_KILL_SESSION); return KILL_PROXYSESSION; }
 	YY_BREAK
 case 137:
+/* rule 137 can match eol */
 YY_RULE_SETUP
-#line 607 "ob_proxy_parser_utf8.l"
-{ SET_ICMD_STMT(OBPROXY_T_ICMD_KILL_MYSQL); return KILL; }
+#line 620 "ob_proxy_parser_utf8.l"
+{ SET_ICMD_STMT(OBPROXY_T_ICMD_KILL_GLOBAL_SESSION); return KILL_GLOBALSESSION; }
 	YY_BREAK
 case 138:
 YY_RULE_SETUP
-#line 608 "ob_proxy_parser_utf8.l"
-{ RETURN_NON_RESERVED_KEYWORD(QUERY); }
+#line 621 "ob_proxy_parser_utf8.l"
+{ SET_ICMD_STMT(OBPROXY_T_ICMD_KILL_MYSQL); return KILL; }
 	YY_BREAK
-/* obproxy_route_addr */
 case 139:
-/* rule 139 can match eol */
 YY_RULE_SETUP
-#line 611 "ob_proxy_parser_utf8.l"
-{ return SELECT_OBPROXY_ROUTE_ADDR; }
+#line 622 "ob_proxy_parser_utf8.l"
+{ RETURN_NON_RESERVED_KEYWORD(QUERY); }
 	YY_BREAK
+/* obproxy_route_addr */
 case 140:
 /* rule 140 can match eol */
 YY_RULE_SETUP
-#line 612 "ob_proxy_parser_utf8.l"
+#line 625 "ob_proxy_parser_utf8.l"
+{ return SELECT_OBPROXY_ROUTE_ADDR; }
+	YY_BREAK
+case 141:
+/* rule 141 can match eol */
+YY_RULE_SETUP
+#line 626 "ob_proxy_parser_utf8.l"
 { return SET_OBPROXY_ROUTE_ADDR; }
 	YY_BREAK
 /* identifer */
-case 141:
+case 142:
 YY_RULE_SETUP
-#line 615 "ob_proxy_parser_utf8.l"
+#line 629 "ob_proxy_parser_utf8.l"
 { SET_FOUND_ROWS(); RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 142:
+case 143:
 YY_RULE_SETUP
-#line 616 "ob_proxy_parser_utf8.l"
+#line 630 "ob_proxy_parser_utf8.l"
 { SET_ROW_COUNT(); RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 143:
+case 144:
 YY_RULE_SETUP
-#line 617 "ob_proxy_parser_utf8.l"
+#line 631 "ob_proxy_parser_utf8.l"
 { SET_LAST_INSERT_ID(); RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 144:
+case 145:
 YY_RULE_SETUP
-#line 618 "ob_proxy_parser_utf8.l"
+#line 632 "ob_proxy_parser_utf8.l"
 { return ','; }
 	YY_BREAK
-case 145:
+case 146:
 YY_RULE_SETUP
-#line 619 "ob_proxy_parser_utf8.l"
+#line 633 "ob_proxy_parser_utf8.l"
 { RETURN_INT_NUM(); }
 	YY_BREAK
-case 146:
+case 147:
 YY_RULE_SETUP
-#line 620 "ob_proxy_parser_utf8.l"
+#line 634 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 147:
+case 148:
 YY_RULE_SETUP
-#line 621 "ob_proxy_parser_utf8.l"
+#line 635 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD_WITH_QUOTE(NAME_OB, OBPROXY_QUOTE_T_SINGLE); }
 	YY_BREAK
-case 148:
+case 149:
 YY_RULE_SETUP
-#line 622 "ob_proxy_parser_utf8.l"
+#line 636 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD_WITH_QUOTE(NAME_OB, OBPROXY_QUOTE_T_DOUBLE); }
 	YY_BREAK
-case 149:
+case 150:
 YY_RULE_SETUP
-#line 623 "ob_proxy_parser_utf8.l"
+#line 637 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD_WITH_QUOTE(NAME_OB, OBPROXY_QUOTE_T_BACK); }
 	YY_BREAK
-case 150:
+case 151:
 YY_RULE_SETUP
-#line 624 "ob_proxy_parser_utf8.l"
+#line 638 "ob_proxy_parser_utf8.l"
 { RETURN_NUMBER_VAL(); }
 	YY_BREAK
-case 151:
+case 152:
 YY_RULE_SETUP
-#line 625 "ob_proxy_parser_utf8.l"
+#line 639 "ob_proxy_parser_utf8.l"
 { return PLACE_HOLDER; }
 	YY_BREAK
-case 152:
+case 153:
 YY_RULE_SETUP
-#line 626 "ob_proxy_parser_utf8.l"
+#line 640 "ob_proxy_parser_utf8.l"
 { return yytext[0]; }
 	YY_BREAK
-case 153:
+case 154:
 YY_RULE_SETUP
-#line 627 "ob_proxy_parser_utf8.l"
+#line 641 "ob_proxy_parser_utf8.l"
 { RETURN_WITH_CALL_CHECK(yytext[0]); }
 	YY_BREAK
-case 154:
+case 155:
 YY_RULE_SETUP
-#line 628 "ob_proxy_parser_utf8.l"
+#line 642 "ob_proxy_parser_utf8.l"
 { RETURN_WITH_CALL_CHECK('('); }
 	YY_BREAK
-case 155:
+case 156:
 YY_RULE_SETUP
-#line 629 "ob_proxy_parser_utf8.l"
+#line 643 "ob_proxy_parser_utf8.l"
 { RETURN_WITH_CALL_CHECK(')'); }
 	YY_BREAK
-case 156:
-/* rule 156 can match eol */
+case 157:
+/* rule 157 can match eol */
 YY_RULE_SETUP
-#line 630 "ob_proxy_parser_utf8.l"
+#line 644 "ob_proxy_parser_utf8.l"
 { }
 	YY_BREAK
 /* hint option */
-case 157:
-/* rule 157 can match eol */
+case 158:
+/* rule 158 can match eol */
 YY_RULE_SETUP
-#line 633 "ob_proxy_parser_utf8.l"
+#line 647 "ob_proxy_parser_utf8.l"
 {
   PUSH_STATE(in_expr);
   PUSH_STATE(hint);
@@ -6694,20 +6860,20 @@ YY_RULE_SETUP
   return SELECT_HINT_BEGIN;
 }
 	YY_BREAK
-case 158:
-/* rule 158 can match eol */
+case 159:
+/* rule 159 can match eol */
 YY_RULE_SETUP
-#line 639 "ob_proxy_parser_utf8.l"
+#line 653 "ob_proxy_parser_utf8.l"
 {
   PUSH_STATE(hint);
   SET_BASIC_STMT(OBPROXY_T_UPDATE);
   return UPDATE_HINT_BEGIN;
 }
 	YY_BREAK
-case 159:
-/* rule 159 can match eol */
+case 160:
+/* rule 160 can match eol */
 YY_RULE_SETUP
-#line 644 "ob_proxy_parser_utf8.l"
+#line 658 "ob_proxy_parser_utf8.l"
 {
   PUSH_STATE(in_expr);
   PUSH_STATE(hint);
@@ -6715,95 +6881,125 @@ YY_RULE_SETUP
   return DELETE_HINT_BEGIN;
 }
 	YY_BREAK
-case 160:
-/* rule 160 can match eol */
+case 161:
+/* rule 161 can match eol */
 YY_RULE_SETUP
-#line 650 "ob_proxy_parser_utf8.l"
+#line 664 "ob_proxy_parser_utf8.l"
 {
   PUSH_STATE(hint);
   SET_BASIC_STMT(OBPROXY_T_INSERT);
   return INSERT_HINT_BEGIN;
 }
 	YY_BREAK
-case 161:
-/* rule 161 can match eol */
+case 162:
+/* rule 162 can match eol */
 YY_RULE_SETUP
-#line 655 "ob_proxy_parser_utf8.l"
+#line 669 "ob_proxy_parser_utf8.l"
 {
   PUSH_STATE(hint);
   SET_BASIC_STMT(OBPROXY_T_REPLACE);
   return REPLACE_HINT_BEGIN;
 }
 	YY_BREAK
-case 162:
-/* rule 162 can match eol */
+case 163:
+/* rule 163 can match eol */
 YY_RULE_SETUP
-#line 660 "ob_proxy_parser_utf8.l"
+#line 674 "ob_proxy_parser_utf8.l"
 {
   PUSH_STATE(hint);
   SET_BASIC_STMT(OBPROXY_T_MERGE);
   return MERGE_HINT_BEGIN;
 }
 	YY_BREAK
-case 163:
-/* rule 163 can match eol */
+case 164:
+/* rule 164 can match eol */
 YY_RULE_SETUP
-#line 666 "ob_proxy_parser_utf8.l"
-{ return AUTOCOMMIT_0; }
+#line 680 "ob_proxy_parser_utf8.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW_MASTER_STATUS); return SHOW_MASTER_STATUS; }
 	YY_BREAK
-case 164:
+case 165:
+/* rule 165 can match eol */
+YY_RULE_SETUP
+#line 681 "ob_proxy_parser_utf8.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW_BINARY_LOGS); return SHOW_BINARY_LOGS; }
+	YY_BREAK
+case 166:
+/* rule 166 can match eol */
+YY_RULE_SETUP
+#line 682 "ob_proxy_parser_utf8.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW_BINLOG_EVENTS); return SHOW_BINLOG_EVENTS; }
+	YY_BREAK
+case 167:
+/* rule 167 can match eol */
+YY_RULE_SETUP
+#line 683 "ob_proxy_parser_utf8.l"
+{ SET_BASIC_STMT(OBPROXY_T_PURGE_BINARY_LOGS); return PURGE_BINARY_LOGS; }
+	YY_BREAK
+case 168:
+/* rule 168 can match eol */
 YY_RULE_SETUP
-#line 667 "ob_proxy_parser_utf8.l"
+#line 684 "ob_proxy_parser_utf8.l"
+{ SET_BASIC_STMT(OBPROXY_T_RESET_MASTER); return RESET_MASTER; }
+	YY_BREAK
+case 169:
+/* rule 169 can match eol */
+YY_RULE_SETUP
+#line 685 "ob_proxy_parser_utf8.l"
+{ SET_BASIC_STMT(OBPROXY_T_SHOW_BINLOG_SERVER_FOR_TENANT); return SHOW_BINLOG_SERVER_FOR_TENANT; }
+	YY_BREAK
+case 170:
+YY_RULE_SETUP
+#line 687 "ob_proxy_parser_utf8.l"
 { return GLOBAL; }
 	YY_BREAK
-case 165:
+case 171:
 YY_RULE_SETUP
-#line 668 "ob_proxy_parser_utf8.l"
+#line 688 "ob_proxy_parser_utf8.l"
 { return SESSION; }
 	YY_BREAK
-case 166:
+case 172:
 YY_RULE_SETUP
-#line 669 "ob_proxy_parser_utf8.l"
+#line 689 "ob_proxy_parser_utf8.l"
 { RETURN_INT_NUM(); }
 	YY_BREAK
-case 167:
+case 173:
 YY_RULE_SETUP
-#line 670 "ob_proxy_parser_utf8.l"
+#line 690 "ob_proxy_parser_utf8.l"
 { return ','; }
 	YY_BREAK
-case 168:
+case 174:
 YY_RULE_SETUP
-#line 671 "ob_proxy_parser_utf8.l"
+#line 691 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 169:
+case 175:
 YY_RULE_SETUP
-#line 672 "ob_proxy_parser_utf8.l"
+#line 692 "ob_proxy_parser_utf8.l"
 { RETURN_NUMBER_VAL(); }
 	YY_BREAK
-case 170:
-/* rule 170 can match eol */
+case 176:
+/* rule 176 can match eol */
 YY_RULE_SETUP
-#line 673 "ob_proxy_parser_utf8.l"
+#line 693 "ob_proxy_parser_utf8.l"
 { }
 	YY_BREAK
-case 171:
+case 177:
 YY_RULE_SETUP
-#line 674 "ob_proxy_parser_utf8.l"
+#line 694 "ob_proxy_parser_utf8.l"
 { return yytext[0]; }
 	YY_BREAK
 case YY_STATE_EOF(set_expr):
-#line 675 "ob_proxy_parser_utf8.l"
+#line 695 "ob_proxy_parser_utf8.l"
 { return END_P; }
 	YY_BREAK
-case 172:
+case 178:
 YY_RULE_SETUP
-#line 676 "ob_proxy_parser_utf8.l"
+#line 696 "ob_proxy_parser_utf8.l"
 { POP_STATE(); PUSH_STATE(INITIAL); return yytext[0]; }
 	YY_BREAK
-case 173:
+case 179:
 YY_RULE_SETUP
-#line 678 "ob_proxy_parser_utf8.l"
+#line 698 "ob_proxy_parser_utf8.l"
 {
   PUSH_STATE(sq);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -6814,9 +7010,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 174:
+case 180:
 YY_RULE_SETUP
-#line 688 "ob_proxy_parser_utf8.l"
+#line 708 "ob_proxy_parser_utf8.l"
 {
   PUSH_STATE(dq);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -6827,9 +7023,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 175:
+case 181:
 YY_RULE_SETUP
-#line 698 "ob_proxy_parser_utf8.l"
+#line 718 "ob_proxy_parser_utf8.l"
 {
   PUSH_STATE(bt);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -6840,90 +7036,90 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 176:
+case 182:
 YY_RULE_SETUP
-#line 707 "ob_proxy_parser_utf8.l"
+#line 727 "ob_proxy_parser_utf8.l"
 { return ERROR; }
 	YY_BREAK
-case 177:
+case 183:
 YY_RULE_SETUP
-#line 709 "ob_proxy_parser_utf8.l"
+#line 729 "ob_proxy_parser_utf8.l"
 { POP_STATE(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 178:
+case 184:
 YY_RULE_SETUP
-#line 710 "ob_proxy_parser_utf8.l"
+#line 730 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 179:
+case 185:
 YY_RULE_SETUP
-#line 712 "ob_proxy_parser_utf8.l"
+#line 732 "ob_proxy_parser_utf8.l"
 { return '('; }
 	YY_BREAK
-case 180:
+case 186:
 YY_RULE_SETUP
-#line 713 "ob_proxy_parser_utf8.l"
+#line 733 "ob_proxy_parser_utf8.l"
 { return ')'; }
 	YY_BREAK
-case 181:
+case 187:
 YY_RULE_SETUP
-#line 714 "ob_proxy_parser_utf8.l"
+#line 734 "ob_proxy_parser_utf8.l"
 { return QUERY_TIMEOUT; }
 	YY_BREAK
-case 182:
+case 188:
 YY_RULE_SETUP
-#line 715 "ob_proxy_parser_utf8.l"
+#line 735 "ob_proxy_parser_utf8.l"
 { RETURN_INT_NUM(); }
 	YY_BREAK
-case 183:
+case 189:
 YY_RULE_SETUP
-#line 716 "ob_proxy_parser_utf8.l"
+#line 736 "ob_proxy_parser_utf8.l"
 { return READ_CONSISTENCY; }
 	YY_BREAK
-case 184:
+case 190:
 YY_RULE_SETUP
-#line 717 "ob_proxy_parser_utf8.l"
+#line 737 "ob_proxy_parser_utf8.l"
 { return WEAK; }
 	YY_BREAK
-case 185:
+case 191:
 YY_RULE_SETUP
-#line 718 "ob_proxy_parser_utf8.l"
+#line 738 "ob_proxy_parser_utf8.l"
 { return STRONG; }
 	YY_BREAK
-case 186:
+case 192:
 YY_RULE_SETUP
-#line 719 "ob_proxy_parser_utf8.l"
+#line 739 "ob_proxy_parser_utf8.l"
 { return FROZEN; }
 	YY_BREAK
-case 187:
+case 193:
 YY_RULE_SETUP
-#line 720 "ob_proxy_parser_utf8.l"
+#line 740 "ob_proxy_parser_utf8.l"
 { return INDEX; }
 	YY_BREAK
-case 188:
+case 194:
 YY_RULE_SETUP
-#line 721 "ob_proxy_parser_utf8.l"
+#line 741 "ob_proxy_parser_utf8.l"
 { return yytext[0]; }
 	YY_BREAK
-case 189:
+case 195:
 YY_RULE_SETUP
-#line 722 "ob_proxy_parser_utf8.l"
+#line 742 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 190:
+case 196:
 YY_RULE_SETUP
-#line 723 "ob_proxy_parser_utf8.l"
+#line 743 "ob_proxy_parser_utf8.l"
 { POP_STATE(); return HINT_END; }
 	YY_BREAK
-case 191:
+case 197:
 YY_RULE_SETUP
-#line 724 "ob_proxy_parser_utf8.l"
+#line 744 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
 /* comment */
-case 192:
+case 198:
 YY_RULE_SETUP
-#line 727 "ob_proxy_parser_utf8.l"
+#line 747 "ob_proxy_parser_utf8.l"
 {
   PUSH_STATE(in_c_comment);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -6938,25 +7134,25 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 193:
+case 199:
 YY_RULE_SETUP
-#line 741 "ob_proxy_parser_utf8.l"
+#line 761 "ob_proxy_parser_utf8.l"
 { POP_STATE(); }
 	YY_BREAK
-case 194:
-/* rule 194 can match eol */
+case 200:
+/* rule 200 can match eol */
 YY_RULE_SETUP
-#line 742 "ob_proxy_parser_utf8.l"
+#line 762 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 195:
+case 201:
 YY_RULE_SETUP
-#line 743 "ob_proxy_parser_utf8.l"
+#line 763 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 196:
+case 202:
 YY_RULE_SETUP
-#line 745 "ob_proxy_parser_utf8.l"
+#line 765 "ob_proxy_parser_utf8.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -6967,15 +7163,15 @@ YY_RULE_SETUP
   return COMMENT_END;
 }
 	YY_BREAK
-case 197:
+case 203:
 YY_RULE_SETUP
-#line 755 "ob_proxy_parser_utf8.l"
+#line 775 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_old_comment_expr); }
 	YY_BREAK
-case 198:
-/* rule 198 can match eol */
+case 204:
+/* rule 204 can match eol */
 YY_RULE_SETUP
-#line 756 "ob_proxy_parser_utf8.l"
+#line 776 "ob_proxy_parser_utf8.l"
 {
   PUSH_STATE(in_old_comment_expr);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -6985,10 +7181,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 199:
-/* rule 199 can match eol */
+case 205:
+/* rule 205 can match eol */
 YY_RULE_SETUP
-#line 765 "ob_proxy_parser_utf8.l"
+#line 785 "ob_proxy_parser_utf8.l"
 {
   PUSH_STATE(in_old_comment_expr);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7000,9 +7196,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 200:
+case 206:
 YY_RULE_SETUP
-#line 776 "ob_proxy_parser_utf8.l"
+#line 796 "ob_proxy_parser_utf8.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7011,9 +7207,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 201:
+case 207:
 YY_RULE_SETUP
-#line 784 "ob_proxy_parser_utf8.l"
+#line 804 "ob_proxy_parser_utf8.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7024,29 +7220,29 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 202:
+case 208:
 YY_RULE_SETUP
-#line 794 "ob_proxy_parser_utf8.l"
+#line 814 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 203:
+case 209:
 YY_RULE_SETUP
-#line 795 "ob_proxy_parser_utf8.l"
+#line 815 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD_WITH_QUOTE(NAME_OB, OBPROXY_QUOTE_T_SINGLE); }
 	YY_BREAK
-case 204:
+case 210:
 YY_RULE_SETUP
-#line 796 "ob_proxy_parser_utf8.l"
+#line 816 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD_WITH_QUOTE(NAME_OB, OBPROXY_QUOTE_T_DOUBLE); }
 	YY_BREAK
-case 205:
+case 211:
 YY_RULE_SETUP
-#line 797 "ob_proxy_parser_utf8.l"
+#line 817 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD_WITH_QUOTE(NAME_OB, OBPROXY_QUOTE_T_BACK); }
 	YY_BREAK
-case 206:
+case 212:
 YY_RULE_SETUP
-#line 798 "ob_proxy_parser_utf8.l"
+#line 818 "ob_proxy_parser_utf8.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7058,160 +7254,171 @@ YY_RULE_SETUP
   return COMMENT_END;
 }
 	YY_BREAK
-case 207:
+case 213:
 YY_RULE_SETUP
-#line 808 "ob_proxy_parser_utf8.l"
+#line 828 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 208:
+case 214:
 YY_RULE_SETUP
-#line 810 "ob_proxy_parser_utf8.l"
+#line 830 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(ODP_COMMENT); }
 	YY_BREAK
-case 209:
-/* rule 209 can match eol */
+case 215:
+/* rule 215 can match eol */
 YY_RULE_SETUP
-#line 811 "ob_proxy_parser_utf8.l"
+#line 831 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(GROUP_ID); }
 	YY_BREAK
-case 210:
-/* rule 210 can match eol */
+case 216:
+/* rule 216 can match eol */
 YY_RULE_SETUP
-#line 812 "ob_proxy_parser_utf8.l"
+#line 832 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(TABLE_ID); }
 	YY_BREAK
-case 211:
-/* rule 211 can match eol */
+case 217:
+/* rule 217 can match eol */
 YY_RULE_SETUP
-#line 813 "ob_proxy_parser_utf8.l"
+#line 833 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(TABLE_NAME); }
 	YY_BREAK
-case 212:
-/* rule 212 can match eol */
+case 218:
+/* rule 218 can match eol */
 YY_RULE_SETUP
-#line 814 "ob_proxy_parser_utf8.l"
+#line 834 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(ELASTIC_ID); }
 	YY_BREAK
-case 213:
-/* rule 213 can match eol */
+case 219:
+/* rule 219 can match eol */
 YY_RULE_SETUP
-#line 815 "ob_proxy_parser_utf8.l"
+#line 835 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(TESTLOAD); }
 	YY_BREAK
-case 214:
-/* rule 214 can match eol */
+case 220:
+/* rule 220 can match eol */
 YY_RULE_SETUP
-#line 816 "ob_proxy_parser_utf8.l"
+#line 836 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(DISASTER_STATUS); }
 	YY_BREAK
-case 215:
-/* rule 215 can match eol */
+case 221:
+/* rule 221 can match eol */
 YY_RULE_SETUP
-#line 817 "ob_proxy_parser_utf8.l"
+#line 837 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(TNT_ID); }
 	YY_BREAK
-case 216:
-/* rule 216 can match eol */
+case 222:
+/* rule 222 can match eol */
 YY_RULE_SETUP
-#line 818 "ob_proxy_parser_utf8.l"
+#line 838 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(TRACE_ID); }
 	YY_BREAK
-case 217:
-/* rule 217 can match eol */
+case 223:
+/* rule 223 can match eol */
 YY_RULE_SETUP
-#line 819 "ob_proxy_parser_utf8.l"
+#line 839 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT_NAME_OB_DOT(NAME_OB_DOT); }
 	YY_BREAK
-case 218:
-/* rule 218 can match eol */
+case 224:
+/* rule 224 can match eol */
 YY_RULE_SETUP
-#line 820 "ob_proxy_parser_utf8.l"
+#line 840 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_odp_comment_expr); RETURN_SHARD_COMMENT(RPC_ID); }
 	YY_BREAK
-case 219:
+case 225:
+/* rule 225 can match eol */
 YY_RULE_SETUP
-#line 822 "ob_proxy_parser_utf8.l"
+#line 841 "ob_proxy_parser_utf8.l"
+{ PUSH_STATE(in_odp_comment_expr); return TARGET_DB_SERVER; }
+	YY_BREAK
+case 226:
+YY_RULE_SETUP
+#line 843 "ob_proxy_parser_utf8.l"
 { return GROUP_ID; }
 	YY_BREAK
-case 220:
+case 227:
 YY_RULE_SETUP
-#line 823 "ob_proxy_parser_utf8.l"
+#line 844 "ob_proxy_parser_utf8.l"
 { return TABLE_ID; }
 	YY_BREAK
-case 221:
+case 228:
 YY_RULE_SETUP
-#line 824 "ob_proxy_parser_utf8.l"
+#line 845 "ob_proxy_parser_utf8.l"
 { return TABLE_NAME; }
 	YY_BREAK
-case 222:
+case 229:
 YY_RULE_SETUP
-#line 825 "ob_proxy_parser_utf8.l"
+#line 846 "ob_proxy_parser_utf8.l"
 { return ELASTIC_ID; }
 	YY_BREAK
-case 223:
+case 230:
 YY_RULE_SETUP
-#line 826 "ob_proxy_parser_utf8.l"
+#line 847 "ob_proxy_parser_utf8.l"
 { return TESTLOAD; }
 	YY_BREAK
-case 224:
+case 231:
 YY_RULE_SETUP
-#line 827 "ob_proxy_parser_utf8.l"
+#line 848 "ob_proxy_parser_utf8.l"
 { return DISASTER_STATUS; }
 	YY_BREAK
-case 225:
+case 232:
 YY_RULE_SETUP
-#line 828 "ob_proxy_parser_utf8.l"
+#line 849 "ob_proxy_parser_utf8.l"
 { return TNT_ID; }
 	YY_BREAK
-case 226:
+case 233:
 YY_RULE_SETUP
-#line 829 "ob_proxy_parser_utf8.l"
+#line 850 "ob_proxy_parser_utf8.l"
 { return TRACE_ID; }
 	YY_BREAK
-case 227:
+case 234:
 YY_RULE_SETUP
-#line 830 "ob_proxy_parser_utf8.l"
+#line 851 "ob_proxy_parser_utf8.l"
 { return RPC_ID; }
 	YY_BREAK
-case 228:
+case 235:
 YY_RULE_SETUP
-#line 831 "ob_proxy_parser_utf8.l"
+#line 852 "ob_proxy_parser_utf8.l"
+{ return TARGET_DB_SERVER; }
+	YY_BREAK
+case 236:
+YY_RULE_SETUP
+#line 853 "ob_proxy_parser_utf8.l"
 { ENTER_QUOTE_STATE(comment_sq); }
 	YY_BREAK
-case 229:
+case 237:
 YY_RULE_SETUP
-#line 832 "ob_proxy_parser_utf8.l"
+#line 854 "ob_proxy_parser_utf8.l"
 { return ','; }
 	YY_BREAK
-case 230:
+case 238:
 YY_RULE_SETUP
-#line 833 "ob_proxy_parser_utf8.l"
+#line 855 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 231:
+case 239:
 YY_RULE_SETUP
-#line 834 "ob_proxy_parser_utf8.l"
+#line 856 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_odp_comment_value_expr); return yytext[0]; }
 	YY_BREAK
-case 232:
+case 240:
 YY_RULE_SETUP
-#line 835 "ob_proxy_parser_utf8.l"
+#line 857 "ob_proxy_parser_utf8.l"
 { return yytext[0]; }
 	YY_BREAK
-case 233:
-/* rule 233 can match eol */
+case 241:
+/* rule 241 can match eol */
 YY_RULE_SETUP
-#line 836 "ob_proxy_parser_utf8.l"
+#line 858 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 234:
+case 242:
 YY_RULE_SETUP
-#line 837 "ob_proxy_parser_utf8.l"
+#line 859 "ob_proxy_parser_utf8.l"
 { return ERROR; }
 	YY_BREAK
-case 235:
+case 243:
 YY_RULE_SETUP
-#line 838 "ob_proxy_parser_utf8.l"
+#line 860 "ob_proxy_parser_utf8.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7223,22 +7430,22 @@ YY_RULE_SETUP
   return COMMENT_END;
 }
 	YY_BREAK
-case 236:
+case 244:
 YY_RULE_SETUP
-#line 849 "ob_proxy_parser_utf8.l"
+#line 871 "ob_proxy_parser_utf8.l"
 { ENTER_QUOTE_STATE(comment_sq); }
 	YY_BREAK
-case 237:
+case 245:
 YY_RULE_SETUP
-#line 850 "ob_proxy_parser_utf8.l"
+#line 872 "ob_proxy_parser_utf8.l"
 {
   POP_STATE();
   return ',';
 }
 	YY_BREAK
-case 238:
+case 246:
 YY_RULE_SETUP
-#line 854 "ob_proxy_parser_utf8.l"
+#line 876 "ob_proxy_parser_utf8.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7251,15 +7458,15 @@ YY_RULE_SETUP
   return COMMENT_END;
 }
 	YY_BREAK
-case 239:
-/* rule 239 can match eol */
+case 247:
+/* rule 247 can match eol */
 YY_RULE_SETUP
-#line 865 "ob_proxy_parser_utf8.l"
+#line 887 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 240:
+case 248:
 YY_RULE_SETUP
-#line 866 "ob_proxy_parser_utf8.l"
+#line 888 "ob_proxy_parser_utf8.l"
 {
   do {
     PUSH_STATE(in_odp_comment_value_expr_calc)
@@ -7272,10 +7479,10 @@ YY_RULE_SETUP
   } while (0);
 }
 	YY_BREAK
-case 241:
-/* rule 241 can match eol */
+case 249:
+/* rule 249 can match eol */
 YY_RULE_SETUP
-#line 878 "ob_proxy_parser_utf8.l"
+#line 900 "ob_proxy_parser_utf8.l"
 {
   POP_STATE();
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7288,9 +7495,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 242:
+case 250:
 YY_RULE_SETUP
-#line 890 "ob_proxy_parser_utf8.l"
+#line 912 "ob_proxy_parser_utf8.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7298,90 +7505,95 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 243:
+case 251:
 YY_RULE_SETUP
-#line 897 "ob_proxy_parser_utf8.l"
+#line 919 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_dbp_comment_expr); RETURN_SHARD_COMMENT(DBP_COMMENT); }
 	YY_BREAK
-case 244:
+case 252:
 YY_RULE_SETUP
-#line 898 "ob_proxy_parser_utf8.l"
+#line 920 "ob_proxy_parser_utf8.l"
 { return ROUTE_TAG; }
 	YY_BREAK
-case 245:
+case 253:
 YY_RULE_SETUP
-#line 899 "ob_proxy_parser_utf8.l"
+#line 921 "ob_proxy_parser_utf8.l"
 { return SYS_TAG; }
 	YY_BREAK
-case 246:
+case 254:
 YY_RULE_SETUP
-#line 900 "ob_proxy_parser_utf8.l"
+#line 922 "ob_proxy_parser_utf8.l"
 { return SCAN_ALL; }
 	YY_BREAK
-case 247:
+case 255:
 YY_RULE_SETUP
-#line 901 "ob_proxy_parser_utf8.l"
+#line 923 "ob_proxy_parser_utf8.l"
+{ return STICKY_SESSION; }
+	YY_BREAK
+case 256:
+YY_RULE_SETUP
+#line 924 "ob_proxy_parser_utf8.l"
 { return SHARD_KEY; }
 	YY_BREAK
-case 248:
+case 257:
 YY_RULE_SETUP
-#line 902 "ob_proxy_parser_utf8.l"
+#line 925 "ob_proxy_parser_utf8.l"
 { return TABLE_NAME;}
 	YY_BREAK
-case 249:
+case 258:
 YY_RULE_SETUP
-#line 903 "ob_proxy_parser_utf8.l"
+#line 926 "ob_proxy_parser_utf8.l"
 { return PARALL; }
 	YY_BREAK
-case 250:
+case 259:
 YY_RULE_SETUP
-#line 904 "ob_proxy_parser_utf8.l"
+#line 927 "ob_proxy_parser_utf8.l"
 { return GROUP_ID; }
 	YY_BREAK
-case 251:
+case 260:
 YY_RULE_SETUP
-#line 905 "ob_proxy_parser_utf8.l"
+#line 928 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_dbp_comment_trace_expr); return TRACE; }
 	YY_BREAK
-case 252:
+case 261:
 YY_RULE_SETUP
-#line 906 "ob_proxy_parser_utf8.l"
+#line 929 "ob_proxy_parser_utf8.l"
 { ENTER_QUOTE_STATE(comment_sq); }
 	YY_BREAK
-case 253:
+case 262:
 YY_RULE_SETUP
-#line 907 "ob_proxy_parser_utf8.l"
+#line 930 "ob_proxy_parser_utf8.l"
 { return yytext[0]; }
 	YY_BREAK
-case 254:
+case 263:
 YY_RULE_SETUP
-#line 908 "ob_proxy_parser_utf8.l"
+#line 931 "ob_proxy_parser_utf8.l"
 { return '('; }
 	YY_BREAK
-case 255:
+case 264:
 YY_RULE_SETUP
-#line 909 "ob_proxy_parser_utf8.l"
+#line 932 "ob_proxy_parser_utf8.l"
 { return ')'; }
 	YY_BREAK
-case 256:
+case 265:
 YY_RULE_SETUP
-#line 910 "ob_proxy_parser_utf8.l"
+#line 933 "ob_proxy_parser_utf8.l"
 { return ','; }
 	YY_BREAK
-case 257:
-/* rule 257 can match eol */
+case 266:
+/* rule 266 can match eol */
 YY_RULE_SETUP
-#line 911 "ob_proxy_parser_utf8.l"
+#line 934 "ob_proxy_parser_utf8.l"
 { }
 	YY_BREAK
-case 258:
+case 267:
 YY_RULE_SETUP
-#line 912 "ob_proxy_parser_utf8.l"
+#line 935 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 259:
+case 268:
 YY_RULE_SETUP
-#line 914 "ob_proxy_parser_utf8.l"
+#line 937 "ob_proxy_parser_utf8.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7393,39 +7605,39 @@ YY_RULE_SETUP
   return COMMENT_END;
 }
 	YY_BREAK
-case 260:
+case 269:
 YY_RULE_SETUP
-#line 924 "ob_proxy_parser_utf8.l"
+#line 947 "ob_proxy_parser_utf8.l"
 {return yytext[0];}
 	YY_BREAK
-case 261:
+case 270:
 YY_RULE_SETUP
-#line 925 "ob_proxy_parser_utf8.l"
+#line 948 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_dbp_comment_trace_value_expr); return '('; }
 	YY_BREAK
-case 262:
-/* rule 262 can match eol */
+case 271:
+/* rule 271 can match eol */
 YY_RULE_SETUP
-#line 926 "ob_proxy_parser_utf8.l"
+#line 949 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 263:
+case 272:
 YY_RULE_SETUP
-#line 928 "ob_proxy_parser_utf8.l"
+#line 951 "ob_proxy_parser_utf8.l"
 { ENTER_QUOTE_STATE(comment_sq); }
 	YY_BREAK
-case 264:
+case 273:
 YY_RULE_SETUP
-#line 929 "ob_proxy_parser_utf8.l"
+#line 952 "ob_proxy_parser_utf8.l"
 {
   POP_STATE();
   POP_STATE();
   return ')';
 }
 	YY_BREAK
-case 265:
+case 274:
 YY_RULE_SETUP
-#line 934 "ob_proxy_parser_utf8.l"
+#line 957 "ob_proxy_parser_utf8.l"
 {
   do {
     PUSH_STATE(in_dbp_comment_trace_value_expr_calc)
@@ -7439,9 +7651,9 @@ YY_RULE_SETUP
   } while (0);
 }
 	YY_BREAK
-case 266:
+case 275:
 YY_RULE_SETUP
-#line 946 "ob_proxy_parser_utf8.l"
+#line 969 "ob_proxy_parser_utf8.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7455,15 +7667,15 @@ YY_RULE_SETUP
   return COMMENT_END;
 }
 	YY_BREAK
-case 267:
-/* rule 267 can match eol */
+case 276:
+/* rule 276 can match eol */
 YY_RULE_SETUP
-#line 958 "ob_proxy_parser_utf8.l"
+#line 981 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 268:
+case 277:
 YY_RULE_SETUP
-#line 959 "ob_proxy_parser_utf8.l"
+#line 982 "ob_proxy_parser_utf8.l"
 {
   do {
     PUSH_STATE(in_dbp_comment_trace_value_expr_calc)
@@ -7476,10 +7688,10 @@ YY_RULE_SETUP
   } while (0);
 }
 	YY_BREAK
-case 269:
-/* rule 269 can match eol */
+case 278:
+/* rule 278 can match eol */
 YY_RULE_SETUP
-#line 971 "ob_proxy_parser_utf8.l"
+#line 994 "ob_proxy_parser_utf8.l"
 {
   POP_STATE();
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7492,9 +7704,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 270:
+case 279:
 YY_RULE_SETUP
-#line 983 "ob_proxy_parser_utf8.l"
+#line 1006 "ob_proxy_parser_utf8.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7503,9 +7715,9 @@ YY_RULE_SETUP
 }
 	YY_BREAK
 /* quote */
-case 271:
+case 280:
 YY_RULE_SETUP
-#line 991 "ob_proxy_parser_utf8.l"
+#line 1014 "ob_proxy_parser_utf8.l"
 {
   PUSH_STATE(sq);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7516,10 +7728,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 272:
-/* rule 272 can match eol */
+case 281:
+/* rule 281 can match eol */
 YY_RULE_SETUP
-#line 1001 "ob_proxy_parser_utf8.l"
+#line 1024 "ob_proxy_parser_utf8.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7527,9 +7739,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 273:
+case 282:
 YY_RULE_SETUP
-#line 1008 "ob_proxy_parser_utf8.l"
+#line 1031 "ob_proxy_parser_utf8.l"
 {
   POP_STATE();
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7547,32 +7759,32 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 274:
+case 283:
 YY_RULE_SETUP
-#line 1025 "ob_proxy_parser_utf8.l"
+#line 1048 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 275:
-/* rule 275 can match eol */
+case 284:
+/* rule 284 can match eol */
 YY_RULE_SETUP
-#line 1026 "ob_proxy_parser_utf8.l"
+#line 1049 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 276:
-/* rule 276 can match eol */
+case 285:
+/* rule 285 can match eol */
 YY_RULE_SETUP
-#line 1027 "ob_proxy_parser_utf8.l"
+#line 1050 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
 case YY_STATE_EOF(sq):
-#line 1028 "ob_proxy_parser_utf8.l"
+#line 1051 "ob_proxy_parser_utf8.l"
 { return ERROR; }
 	YY_BREAK
 /* comment sq return name_str */
-case 277:
-/* rule 277 can match eol */
+case 286:
+/* rule 286 can match eol */
 YY_RULE_SETUP
-#line 1031 "ob_proxy_parser_utf8.l"
+#line 1054 "ob_proxy_parser_utf8.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7580,9 +7792,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 278:
+case 287:
 YY_RULE_SETUP
-#line 1038 "ob_proxy_parser_utf8.l"
+#line 1061 "ob_proxy_parser_utf8.l"
 {
   POP_STATE();
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7594,31 +7806,31 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 279:
+case 288:
 YY_RULE_SETUP
-#line 1049 "ob_proxy_parser_utf8.l"
+#line 1072 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 280:
-/* rule 280 can match eol */
+case 289:
+/* rule 289 can match eol */
 YY_RULE_SETUP
-#line 1050 "ob_proxy_parser_utf8.l"
+#line 1073 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 281:
-/* rule 281 can match eol */
+case 290:
+/* rule 290 can match eol */
 YY_RULE_SETUP
-#line 1051 "ob_proxy_parser_utf8.l"
+#line 1074 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
 case YY_STATE_EOF(comment_sq):
-#line 1052 "ob_proxy_parser_utf8.l"
+#line 1075 "ob_proxy_parser_utf8.l"
 { return ERROR; }
 	YY_BREAK
 /* dquote */
-case 282:
+case 291:
 YY_RULE_SETUP
-#line 1055 "ob_proxy_parser_utf8.l"
+#line 1078 "ob_proxy_parser_utf8.l"
 {
   PUSH_STATE(dq);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7629,10 +7841,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 283:
-/* rule 283 can match eol */
+case 292:
+/* rule 292 can match eol */
 YY_RULE_SETUP
-#line 1065 "ob_proxy_parser_utf8.l"
+#line 1088 "ob_proxy_parser_utf8.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (OB_NOTNULL(p)) {
@@ -7640,9 +7852,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 284:
+case 293:
 YY_RULE_SETUP
-#line 1072 "ob_proxy_parser_utf8.l"
+#line 1095 "ob_proxy_parser_utf8.l"
 {
   POP_STATE();
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7660,31 +7872,31 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 285:
+case 294:
 YY_RULE_SETUP
-#line 1089 "ob_proxy_parser_utf8.l"
+#line 1112 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 286:
-/* rule 286 can match eol */
+case 295:
+/* rule 295 can match eol */
 YY_RULE_SETUP
-#line 1090 "ob_proxy_parser_utf8.l"
+#line 1113 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 287:
-/* rule 287 can match eol */
+case 296:
+/* rule 296 can match eol */
 YY_RULE_SETUP
-#line 1091 "ob_proxy_parser_utf8.l"
+#line 1114 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
 case YY_STATE_EOF(dq):
-#line 1092 "ob_proxy_parser_utf8.l"
+#line 1115 "ob_proxy_parser_utf8.l"
 { return ERROR; }
 	YY_BREAK
 /* backtick */
-case 288:
+case 297:
 YY_RULE_SETUP
-#line 1096 "ob_proxy_parser_utf8.l"
+#line 1119 "ob_proxy_parser_utf8.l"
 {
   PUSH_STATE(bt);
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7695,9 +7907,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 289:
+case 298:
 YY_RULE_SETUP
-#line 1106 "ob_proxy_parser_utf8.l"
+#line 1129 "ob_proxy_parser_utf8.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (NULL != p && NULL != p->tmp_buf_ && p->tmp_len_ + 1 < OBPROXY_MAX_NAME_LENGTH) {
@@ -7705,10 +7917,10 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 290:
-/* rule 290 can match eol */
+case 299:
+/* rule 299 can match eol */
 YY_RULE_SETUP
-#line 1113 "ob_proxy_parser_utf8.l"
+#line 1136 "ob_proxy_parser_utf8.l"
 {
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
   if (NULL != p && NULL != p->tmp_buf_ && p->tmp_len_ + yyleng < OBPROXY_MAX_NAME_LENGTH) {
@@ -7717,9 +7929,9 @@ YY_RULE_SETUP
   }
 }
 	YY_BREAK
-case 291:
+case 300:
 YY_RULE_SETUP
-#line 1121 "ob_proxy_parser_utf8.l"
+#line 1144 "ob_proxy_parser_utf8.l"
 {
   POP_STATE();
   ObProxyParseResult *p = (ObProxyParseResult *)yyextra;
@@ -7733,248 +7945,242 @@ YY_RULE_SETUP
 }
 	YY_BREAK
 case YY_STATE_EOF(bt):
-#line 1133 "ob_proxy_parser_utf8.l"
+#line 1156 "ob_proxy_parser_utf8.l"
 {
   return ERROR;
 }
 	YY_BREAK
-case 292:
+case 301:
 YY_RULE_SETUP
-#line 1137 "ob_proxy_parser_utf8.l"
+#line 1160 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 293:
-/* rule 293 can match eol */
+case 302:
+/* rule 302 can match eol */
 YY_RULE_SETUP
-#line 1138 "ob_proxy_parser_utf8.l"
+#line 1161 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
-case 294:
+case 303:
 YY_RULE_SETUP
-#line 1139 "ob_proxy_parser_utf8.l"
+#line 1162 "ob_proxy_parser_utf8.l"
 { POP_STATE(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case YY_STATE_EOF(bt_in_expr):
-#line 1140 "ob_proxy_parser_utf8.l"
+#line 1163 "ob_proxy_parser_utf8.l"
 { return ERROR; }
 	YY_BREAK
 /* some useful keyword */
-case 295:
-/* rule 295 can match eol */
+case 304:
+/* rule 304 can match eol */
 YY_RULE_SETUP
-#line 1143 "ob_proxy_parser_utf8.l"
+#line 1166 "ob_proxy_parser_utf8.l"
 { RETURN_IGNORED_WORD_FOR_DUAL(); }
 	YY_BREAK
-case 296:
+case 305:
 YY_RULE_SETUP
-#line 1144 "ob_proxy_parser_utf8.l"
+#line 1167 "ob_proxy_parser_utf8.l"
 { POP_STATE(); PUSH_STATE(INITIAL); return FROM; }
 	YY_BREAK
-case 297:
+case 306:
 YY_RULE_SETUP
-#line 1145 "ob_proxy_parser_utf8.l"
+#line 1168 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_subquery); return '('; }
 	YY_BREAK
-case 298:
+case 307:
 YY_RULE_SETUP
-#line 1146 "ob_proxy_parser_utf8.l"
+#line 1169 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(dq); }
 	YY_BREAK
-case 299:
+case 308:
 YY_RULE_SETUP
-#line 1147 "ob_proxy_parser_utf8.l"
+#line 1170 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(sq); }
 	YY_BREAK
-case 300:
+case 309:
 YY_RULE_SETUP
-#line 1148 "ob_proxy_parser_utf8.l"
+#line 1171 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(bt_in_expr); }
 	YY_BREAK
-case 301:
+case 310:
 YY_RULE_SETUP
-#line 1149 "ob_proxy_parser_utf8.l"
+#line 1172 "ob_proxy_parser_utf8.l"
 { SET_FOUND_ROWS(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 302:
+case 311:
 YY_RULE_SETUP
-#line 1150 "ob_proxy_parser_utf8.l"
+#line 1173 "ob_proxy_parser_utf8.l"
 { SET_ROW_COUNT(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 303:
+case 312:
 YY_RULE_SETUP
-#line 1151 "ob_proxy_parser_utf8.l"
+#line 1174 "ob_proxy_parser_utf8.l"
 { SET_LAST_INSERT_ID(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 304:
+case 313:
 YY_RULE_SETUP
-#line 1152 "ob_proxy_parser_utf8.l"
+#line 1175 "ob_proxy_parser_utf8.l"
 { SET_GLOBAL_SET_STMT(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 305:
-/* rule 305 can match eol */
+case 314:
+/* rule 314 can match eol */
 YY_RULE_SETUP
-#line 1153 "ob_proxy_parser_utf8.l"
+#line 1176 "ob_proxy_parser_utf8.l"
 { RETURN_COL_NAME(TX_READ_ONLY); }
 	YY_BREAK
-case 306:
-/* rule 306 can match eol */
-YY_RULE_SETUP
-#line 1154 "ob_proxy_parser_utf8.l"
-{ return AUTOCOMMIT_0; }
-	YY_BREAK
-case 307:
+case 315:
 YY_RULE_SETUP
-#line 1155 "ob_proxy_parser_utf8.l"
+#line 1177 "ob_proxy_parser_utf8.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case YY_STATE_EOF(in_expr):
-#line 1156 "ob_proxy_parser_utf8.l"
+#line 1178 "ob_proxy_parser_utf8.l"
 { return END_P; }
 	YY_BREAK
-case 308:
-/* rule 308 can match eol */
+case 316:
+/* rule 316 can match eol */
 YY_RULE_SETUP
-#line 1157 "ob_proxy_parser_utf8.l"
+#line 1179 "ob_proxy_parser_utf8.l"
 { }
 	YY_BREAK
-case 309:
+case 317:
 YY_RULE_SETUP
-#line 1158 "ob_proxy_parser_utf8.l"
+#line 1180 "ob_proxy_parser_utf8.l"
 { POP_STATE(); PUSH_STATE(INITIAL); return yytext[0]; }
 	YY_BREAK
-case 310:
+case 318:
 YY_RULE_SETUP
-#line 1159 "ob_proxy_parser_utf8.l"
+#line 1181 "ob_proxy_parser_utf8.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 311:
+case 319:
 YY_RULE_SETUP
-#line 1161 "ob_proxy_parser_utf8.l"
+#line 1183 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_expr); return SELECT; }
 	YY_BREAK
-case 312:
+case 320:
 YY_RULE_SETUP
-#line 1162 "ob_proxy_parser_utf8.l"
+#line 1184 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_subquery); return '('; }
 	YY_BREAK
-case 313:
+case 321:
 YY_RULE_SETUP
-#line 1163 "ob_proxy_parser_utf8.l"
+#line 1185 "ob_proxy_parser_utf8.l"
 { POP_STATE(); return ')'; }
 	YY_BREAK
-case 314:
+case 322:
 YY_RULE_SETUP
-#line 1164 "ob_proxy_parser_utf8.l"
+#line 1186 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(dq); }
 	YY_BREAK
-case 315:
+case 323:
 YY_RULE_SETUP
-#line 1165 "ob_proxy_parser_utf8.l"
+#line 1187 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(sq); }
 	YY_BREAK
 case YY_STATE_EOF(in_subquery):
-#line 1166 "ob_proxy_parser_utf8.l"
+#line 1188 "ob_proxy_parser_utf8.l"
 { return END_P; }
 	YY_BREAK
-case 316:
-/* rule 316 can match eol */
+case 324:
+/* rule 324 can match eol */
 YY_RULE_SETUP
-#line 1167 "ob_proxy_parser_utf8.l"
+#line 1189 "ob_proxy_parser_utf8.l"
 { }
 	YY_BREAK
-case 317:
+case 325:
 YY_RULE_SETUP
-#line 1168 "ob_proxy_parser_utf8.l"
+#line 1190 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_no_select_query); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 318:
+case 326:
 YY_RULE_SETUP
-#line 1170 "ob_proxy_parser_utf8.l"
+#line 1192 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(in_subquery); return '('; }
 	YY_BREAK
-case 319:
+case 327:
 YY_RULE_SETUP
-#line 1171 "ob_proxy_parser_utf8.l"
+#line 1193 "ob_proxy_parser_utf8.l"
 { POP_STATE(); POP_STATE(); return ')'; }
 	YY_BREAK
-case 320:
+case 328:
 YY_RULE_SETUP
-#line 1172 "ob_proxy_parser_utf8.l"
+#line 1194 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(dq); }
 	YY_BREAK
-case 321:
+case 329:
 YY_RULE_SETUP
-#line 1173 "ob_proxy_parser_utf8.l"
+#line 1195 "ob_proxy_parser_utf8.l"
 { PUSH_STATE(sq); }
 	YY_BREAK
-case 322:
+case 330:
 YY_RULE_SETUP
-#line 1174 "ob_proxy_parser_utf8.l"
+#line 1196 "ob_proxy_parser_utf8.l"
 { SET_FOUND_ROWS(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 323:
+case 331:
 YY_RULE_SETUP
-#line 1175 "ob_proxy_parser_utf8.l"
+#line 1197 "ob_proxy_parser_utf8.l"
 { SET_ROW_COUNT(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 324:
+case 332:
 YY_RULE_SETUP
-#line 1176 "ob_proxy_parser_utf8.l"
+#line 1198 "ob_proxy_parser_utf8.l"
 { SET_LAST_INSERT_ID(); RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 325:
+case 333:
 YY_RULE_SETUP
-#line 1177 "ob_proxy_parser_utf8.l"
+#line 1199 "ob_proxy_parser_utf8.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
 case YY_STATE_EOF(in_no_select_query):
-#line 1178 "ob_proxy_parser_utf8.l"
+#line 1200 "ob_proxy_parser_utf8.l"
 { return END_P; }
 	YY_BREAK
-case 326:
-/* rule 326 can match eol */
+case 334:
+/* rule 334 can match eol */
 YY_RULE_SETUP
-#line 1179 "ob_proxy_parser_utf8.l"
+#line 1201 "ob_proxy_parser_utf8.l"
 { }
 	YY_BREAK
-case 327:
+case 335:
 YY_RULE_SETUP
-#line 1180 "ob_proxy_parser_utf8.l"
+#line 1202 "ob_proxy_parser_utf8.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 328:
+case 336:
 YY_RULE_SETUP
-#line 1182 "ob_proxy_parser_utf8.l"
+#line 1204 "ob_proxy_parser_utf8.l"
 { return FROM; }
 	YY_BREAK
-case 329:
+case 337:
 YY_RULE_SETUP
-#line 1183 "ob_proxy_parser_utf8.l"
+#line 1205 "ob_proxy_parser_utf8.l"
 { return yytext[0]; }
 	YY_BREAK
-case 330:
+case 338:
 YY_RULE_SETUP
-#line 1184 "ob_proxy_parser_utf8.l"
+#line 1206 "ob_proxy_parser_utf8.l"
 { RETURN_NON_RESERVED_KEYWORD(NAME_OB); }
 	YY_BREAK
-case 331:
+case 339:
 YY_RULE_SETUP
-#line 1185 "ob_proxy_parser_utf8.l"
+#line 1207 "ob_proxy_parser_utf8.l"
 { POP_STATE(); }
 	YY_BREAK
-case 332:
+case 340:
 YY_RULE_SETUP
-#line 1186 "ob_proxy_parser_utf8.l"
+#line 1208 "ob_proxy_parser_utf8.l"
 { POP_STATE(); }
 	YY_BREAK
-case 333:
+case 341:
 YY_RULE_SETUP
-#line 1188 "ob_proxy_parser_utf8.l"
-{ POP_STATE(); return BEGI;}
+#line 1210 "ob_proxy_parser_utf8.l"
+{ POP_STATE(); RETURN_NON_RESERVED_KEYWORD(BEGI);}
 	YY_BREAK
-case 334:
+case 342:
 YY_RULE_SETUP
-#line 1189 "ob_proxy_parser_utf8.l"
+#line 1211 "ob_proxy_parser_utf8.l"
 {}
 	YY_BREAK
 case YY_STATE_EOF(INITIAL):
@@ -7993,21 +8199,22 @@ case YY_STATE_EOF(in_dbp_comment_trace_value_expr_calc):
 case YY_STATE_EOF(in_anonymous_block):
 case YY_STATE_EOF(prepare):
 case YY_STATE_EOF(insert_all_expr):
+case YY_STATE_EOF(show_topology):
 case YY_STATE_EOF(proxy_icmd_state):
-#line 1191 "ob_proxy_parser_utf8.l"
+#line 1213 "ob_proxy_parser_utf8.l"
 { return END_P; }
 	YY_BREAK
-case 335:
+case 343:
 YY_RULE_SETUP
-#line 1192 "ob_proxy_parser_utf8.l"
+#line 1214 "ob_proxy_parser_utf8.l"
 { RETURN_IGNORED_WORD(); }
 	YY_BREAK
-case 336:
+case 344:
 YY_RULE_SETUP
-#line 1193 "ob_proxy_parser_utf8.l"
+#line 1215 "ob_proxy_parser_utf8.l"
 ECHO;
 	YY_BREAK
-#line 8013 "ob_proxy_parser_utf8_lex.c"
+#line 8220 "ob_proxy_parser_utf8_lex.c"
 
 	case YY_END_OF_BUFFER:
 		{
@@ -8299,7 +8506,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 		while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 			{
 			yy_current_state = (int) yy_def[yy_current_state];
-			if ( yy_current_state >= 2597 )
+			if ( yy_current_state >= 2787 )
 				yy_c = yy_meta[(unsigned int) yy_c];
 			}
 		yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
@@ -8328,11 +8535,11 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 	while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 		{
 		yy_current_state = (int) yy_def[yy_current_state];
-		if ( yy_current_state >= 2597 )
+		if ( yy_current_state >= 2787 )
 			yy_c = yy_meta[(unsigned int) yy_c];
 		}
 	yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
-	yy_is_jam = (yy_current_state == 2596);
+	yy_is_jam = (yy_current_state == 2786);
 
 	return yy_is_jam ? 0 : yy_current_state;
 }
@@ -9157,7 +9364,7 @@ static int yy_flex_strlen (yyconst char * s , yyscan_t yyscanner)
 
 #define YYTABLES_NAME "yytables"
 
-#line 1193 "ob_proxy_parser_utf8.l"
+#line 1215 "ob_proxy_parser_utf8.l"
 
 
 inline void *ob_proxy_parser_utf8_yyalloc(size_t bytes,void *yyscanner)
@@ -9367,96 +9574,104 @@ extern int ob_proxy_parser_utf8_yydebug;
      UNION = 333,
      FOR = 334,
      TX_READ_ONLY = 335,
-     AUTOCOMMIT_0 = 336,
-     SELECT_OBPROXY_ROUTE_ADDR = 337,
-     SET_OBPROXY_ROUTE_ADDR = 338,
-     NAME_OB_DOT = 339,
-     NAME_OB = 340,
-     EXPLAIN = 341,
-     DESC = 342,
-     DESCRIBE = 343,
-     NAME_STR = 344,
-     USE = 345,
-     HELP = 346,
-     SET_NAMES = 347,
-     SET_CHARSET = 348,
-     SET_PASSWORD = 349,
-     SET_DEFAULT = 350,
-     SET_OB_READ_CONSISTENCY = 351,
-     SET_TX_READ_ONLY = 352,
-     GLOBAL = 353,
-     SESSION = 354,
-     NUMBER_VAL = 355,
-     GROUP_ID = 356,
-     TABLE_ID = 357,
-     ELASTIC_ID = 358,
-     TESTLOAD = 359,
-     ODP_COMMENT = 360,
-     TNT_ID = 361,
-     DISASTER_STATUS = 362,
-     TRACE_ID = 363,
-     RPC_ID = 364,
+     SELECT_OBPROXY_ROUTE_ADDR = 336,
+     SET_OBPROXY_ROUTE_ADDR = 337,
+     NAME_OB_DOT = 338,
+     NAME_OB = 339,
+     EXPLAIN = 340,
+     DESC = 341,
+     DESCRIBE = 342,
+     NAME_STR = 343,
+     USE = 344,
+     HELP = 345,
+     SET_NAMES = 346,
+     SET_CHARSET = 347,
+     SET_PASSWORD = 348,
+     SET_DEFAULT = 349,
+     SET_OB_READ_CONSISTENCY = 350,
+     SET_TX_READ_ONLY = 351,
+     GLOBAL = 352,
+     SESSION = 353,
+     NUMBER_VAL = 354,
+     GROUP_ID = 355,
+     TABLE_ID = 356,
+     ELASTIC_ID = 357,
+     TESTLOAD = 358,
+     ODP_COMMENT = 359,
+     TNT_ID = 360,
+     DISASTER_STATUS = 361,
+     TRACE_ID = 362,
+     RPC_ID = 363,
+     TARGET_DB_SERVER = 364,
      DBP_COMMENT = 365,
      ROUTE_TAG = 366,
      SYS_TAG = 367,
      TABLE_NAME = 368,
      SCAN_ALL = 369,
-     PARALL = 370,
-     SHARD_KEY = 371,
-     INT_NUM = 372,
-     SHOW_PROXYNET = 373,
-     THREAD = 374,
-     CONNECTION = 375,
-     LIMIT = 376,
-     OFFSET = 377,
-     SHOW_PROCESSLIST = 378,
-     SHOW_PROXYSESSION = 379,
-     SHOW_GLOBALSESSION = 380,
-     ATTRIBUTE = 381,
-     VARIABLES = 382,
-     ALL = 383,
-     STAT = 384,
-     SHOW_PROXYCONFIG = 385,
-     DIFF = 386,
-     USER = 387,
-     LIKE = 388,
-     SHOW_PROXYSM = 389,
-     SHOW_PROXYCLUSTER = 390,
-     SHOW_PROXYRESOURCE = 391,
-     SHOW_PROXYCONGESTION = 392,
-     SHOW_PROXYROUTE = 393,
-     PARTITION = 394,
-     ROUTINE = 395,
-     SHOW_PROXYVIP = 396,
-     SHOW_PROXYMEMORY = 397,
-     OBJPOOL = 398,
-     SHOW_SQLAUDIT = 399,
-     SHOW_WARNLOG = 400,
-     SHOW_PROXYSTAT = 401,
-     REFRESH = 402,
-     SHOW_PROXYTRACE = 403,
-     SHOW_PROXYINFO = 404,
-     BINARY = 405,
-     UPGRADE = 406,
-     IDC = 407,
-     SHOW_TOPOLOGY = 408,
-     GROUP_NAME = 409,
-     SHOW_DB_VERSION = 410,
-     SHOW_DATABASES = 411,
-     SHOW_TABLES = 412,
-     SHOW_FULL_TABLES = 413,
-     SELECT_DATABASE = 414,
-     SHOW_CREATE_TABLE = 415,
-     SELECT_PROXY_VERSION = 416,
-     SHOW_COLUMNS = 417,
-     SHOW_INDEX = 418,
-     ALTER_PROXYCONFIG = 419,
-     ALTER_PROXYRESOURCE = 420,
-     PING_PROXY = 421,
-     KILL_PROXYSESSION = 422,
-     KILL_GLOBALSESSION = 423,
-     KILL = 424,
-     QUERY = 425
+     STICKY_SESSION = 370,
+     PARALL = 371,
+     SHARD_KEY = 372,
+     INT_NUM = 373,
+     SHOW_PROXYNET = 374,
+     THREAD = 375,
+     CONNECTION = 376,
+     LIMIT = 377,
+     OFFSET = 378,
+     SHOW_PROCESSLIST = 379,
+     SHOW_PROXYSESSION = 380,
+     SHOW_GLOBALSESSION = 381,
+     ATTRIBUTE = 382,
+     VARIABLES = 383,
+     ALL = 384,
+     STAT = 385,
+     SHOW_PROXYCONFIG = 386,
+     DIFF = 387,
+     USER = 388,
+     LIKE = 389,
+     SHOW_PROXYSM = 390,
+     SHOW_PROXYCLUSTER = 391,
+     SHOW_PROXYRESOURCE = 392,
+     SHOW_PROXYCONGESTION = 393,
+     SHOW_PROXYROUTE = 394,
+     PARTITION = 395,
+     ROUTINE = 396,
+     SHOW_PROXYVIP = 397,
+     SHOW_PROXYMEMORY = 398,
+     OBJPOOL = 399,
+     SHOW_SQLAUDIT = 400,
+     SHOW_WARNLOG = 401,
+     SHOW_PROXYSTAT = 402,
+     REFRESH = 403,
+     SHOW_PROXYTRACE = 404,
+     SHOW_PROXYINFO = 405,
+     BINARY = 406,
+     UPGRADE = 407,
+     IDC = 408,
+     SHOW_ELASTIC_ID = 409,
+     SHOW_TOPOLOGY = 410,
+     GROUP_NAME = 411,
+     SHOW_DB_VERSION = 412,
+     SHOW_DATABASES = 413,
+     SHOW_TABLES = 414,
+     SHOW_FULL_TABLES = 415,
+     SELECT_DATABASE = 416,
+     SHOW_CREATE_TABLE = 417,
+     SELECT_PROXY_VERSION = 418,
+     SHOW_COLUMNS = 419,
+     SHOW_INDEX = 420,
+     ALTER_PROXYCONFIG = 421,
+     ALTER_PROXYRESOURCE = 422,
+     PING_PROXY = 423,
+     KILL_PROXYSESSION = 424,
+     KILL_GLOBALSESSION = 425,
+     KILL = 426,
+     QUERY = 427,
+     SHOW_MASTER_STATUS = 428,
+     SHOW_BINARY_LOGS = 429,
+     SHOW_BINLOG_EVENTS = 430,
+     PURGE_BINARY_LOGS = 431,
+     RESET_MASTER = 432,
+     SHOW_BINLOG_SERVER_FOR_TENANT = 433
    };
 #endif
 
diff --git a/src/obproxy/opsql/parser/ob_proxy_parser_utf8_lex.h b/src/obproxy/opsql/parser/ob_proxy_parser_utf8_lex.h
index 486cb751..4cb2afb9 100644
--- a/src/obproxy/opsql/parser/ob_proxy_parser_utf8_lex.h
+++ b/src/obproxy/opsql/parser/ob_proxy_parser_utf8_lex.h
@@ -244,9 +244,10 @@ void ob_proxy_parser_utf8_yyfree (void * ,yyscan_t yyscanner );
 #define prepare 22
 #define insert_all_expr 23
 #define set_expr 24
-#define show_topology 25
-#define show_tables 26
-#define proxy_icmd_state 27
+#define show_elastic_id 25
+#define show_topology 26
+#define show_tables 27
+#define proxy_icmd_state 28
 
 #endif
 
@@ -364,9 +365,9 @@ extern int ob_proxy_parser_utf8_yylex \
 #undef YY_DECL
 #endif
 
-#line 1193 "ob_proxy_parser_utf8.l"
+#line 1215 "ob_proxy_parser_utf8.l"
 
 
-#line 371 "ob_proxy_parser_utf8_lex.h"
+#line 372 "ob_proxy_parser_utf8_lex.h"
 #undef ob_proxy_parser_utf8_yyIN_HEADER
 #endif /* ob_proxy_parser_utf8_yyHEADER_H */
diff --git a/src/obproxy/opsql/parser/ob_proxy_parser_utf8_tab.c b/src/obproxy/opsql/parser/ob_proxy_parser_utf8_tab.c
index 48704e9f..0ae9f526 100644
--- a/src/obproxy/opsql/parser/ob_proxy_parser_utf8_tab.c
+++ b/src/obproxy/opsql/parser/ob_proxy_parser_utf8_tab.c
@@ -112,9 +112,6 @@ static inline void handle_stmt_end(ObProxyParseResult* result)
       case OBPROXY_T_SELECT_TX_RO:
         result->stmt_type_ = OBPROXY_T_SELECT;
         break;
-      case OBPROXY_T_SET_AC_0:
-        result->stmt_type_ = OBPROXY_T_OTHERS;
-        break;
       case OBPROXY_T_BEGIN:
         result->stmt_type_ = OBPROXY_T_OTHERS;
         break;
@@ -133,7 +130,7 @@ static inline void handle_stmt_end(ObProxyParseResult* result)
     }
   } else {
     result->stmt_type_ = result->cur_stmt_type_;
-  } 
+  }
 
   if (OBPROXY_T_TEXT_PS_PREPARE == result->text_ps_inner_stmt_type_) {
     ObProxyBasicStmtType tmp_type = result->cur_stmt_type_;
@@ -459,96 +456,104 @@ extern int ob_proxy_parser_utf8_yydebug;
      UNION = 333,
      FOR = 334,
      TX_READ_ONLY = 335,
-     AUTOCOMMIT_0 = 336,
-     SELECT_OBPROXY_ROUTE_ADDR = 337,
-     SET_OBPROXY_ROUTE_ADDR = 338,
-     NAME_OB_DOT = 339,
-     NAME_OB = 340,
-     EXPLAIN = 341,
-     DESC = 342,
-     DESCRIBE = 343,
-     NAME_STR = 344,
-     USE = 345,
-     HELP = 346,
-     SET_NAMES = 347,
-     SET_CHARSET = 348,
-     SET_PASSWORD = 349,
-     SET_DEFAULT = 350,
-     SET_OB_READ_CONSISTENCY = 351,
-     SET_TX_READ_ONLY = 352,
-     GLOBAL = 353,
-     SESSION = 354,
-     NUMBER_VAL = 355,
-     GROUP_ID = 356,
-     TABLE_ID = 357,
-     ELASTIC_ID = 358,
-     TESTLOAD = 359,
-     ODP_COMMENT = 360,
-     TNT_ID = 361,
-     DISASTER_STATUS = 362,
-     TRACE_ID = 363,
-     RPC_ID = 364,
+     SELECT_OBPROXY_ROUTE_ADDR = 336,
+     SET_OBPROXY_ROUTE_ADDR = 337,
+     NAME_OB_DOT = 338,
+     NAME_OB = 339,
+     EXPLAIN = 340,
+     DESC = 341,
+     DESCRIBE = 342,
+     NAME_STR = 343,
+     USE = 344,
+     HELP = 345,
+     SET_NAMES = 346,
+     SET_CHARSET = 347,
+     SET_PASSWORD = 348,
+     SET_DEFAULT = 349,
+     SET_OB_READ_CONSISTENCY = 350,
+     SET_TX_READ_ONLY = 351,
+     GLOBAL = 352,
+     SESSION = 353,
+     NUMBER_VAL = 354,
+     GROUP_ID = 355,
+     TABLE_ID = 356,
+     ELASTIC_ID = 357,
+     TESTLOAD = 358,
+     ODP_COMMENT = 359,
+     TNT_ID = 360,
+     DISASTER_STATUS = 361,
+     TRACE_ID = 362,
+     RPC_ID = 363,
+     TARGET_DB_SERVER = 364,
      DBP_COMMENT = 365,
      ROUTE_TAG = 366,
      SYS_TAG = 367,
      TABLE_NAME = 368,
      SCAN_ALL = 369,
-     PARALL = 370,
-     SHARD_KEY = 371,
-     INT_NUM = 372,
-     SHOW_PROXYNET = 373,
-     THREAD = 374,
-     CONNECTION = 375,
-     LIMIT = 376,
-     OFFSET = 377,
-     SHOW_PROCESSLIST = 378,
-     SHOW_PROXYSESSION = 379,
-     SHOW_GLOBALSESSION = 380,
-     ATTRIBUTE = 381,
-     VARIABLES = 382,
-     ALL = 383,
-     STAT = 384,
-     SHOW_PROXYCONFIG = 385,
-     DIFF = 386,
-     USER = 387,
-     LIKE = 388,
-     SHOW_PROXYSM = 389,
-     SHOW_PROXYCLUSTER = 390,
-     SHOW_PROXYRESOURCE = 391,
-     SHOW_PROXYCONGESTION = 392,
-     SHOW_PROXYROUTE = 393,
-     PARTITION = 394,
-     ROUTINE = 395,
-     SHOW_PROXYVIP = 396,
-     SHOW_PROXYMEMORY = 397,
-     OBJPOOL = 398,
-     SHOW_SQLAUDIT = 399,
-     SHOW_WARNLOG = 400,
-     SHOW_PROXYSTAT = 401,
-     REFRESH = 402,
-     SHOW_PROXYTRACE = 403,
-     SHOW_PROXYINFO = 404,
-     BINARY = 405,
-     UPGRADE = 406,
-     IDC = 407,
-     SHOW_TOPOLOGY = 408,
-     GROUP_NAME = 409,
-     SHOW_DB_VERSION = 410,
-     SHOW_DATABASES = 411,
-     SHOW_TABLES = 412,
-     SHOW_FULL_TABLES = 413,
-     SELECT_DATABASE = 414,
-     SHOW_CREATE_TABLE = 415,
-     SELECT_PROXY_VERSION = 416,
-     SHOW_COLUMNS = 417,
-     SHOW_INDEX = 418,
-     ALTER_PROXYCONFIG = 419,
-     ALTER_PROXYRESOURCE = 420,
-     PING_PROXY = 421,
-     KILL_PROXYSESSION = 422,
-     KILL_GLOBALSESSION = 423,
-     KILL = 424,
-     QUERY = 425
+     STICKY_SESSION = 370,
+     PARALL = 371,
+     SHARD_KEY = 372,
+     INT_NUM = 373,
+     SHOW_PROXYNET = 374,
+     THREAD = 375,
+     CONNECTION = 376,
+     LIMIT = 377,
+     OFFSET = 378,
+     SHOW_PROCESSLIST = 379,
+     SHOW_PROXYSESSION = 380,
+     SHOW_GLOBALSESSION = 381,
+     ATTRIBUTE = 382,
+     VARIABLES = 383,
+     ALL = 384,
+     STAT = 385,
+     SHOW_PROXYCONFIG = 386,
+     DIFF = 387,
+     USER = 388,
+     LIKE = 389,
+     SHOW_PROXYSM = 390,
+     SHOW_PROXYCLUSTER = 391,
+     SHOW_PROXYRESOURCE = 392,
+     SHOW_PROXYCONGESTION = 393,
+     SHOW_PROXYROUTE = 394,
+     PARTITION = 395,
+     ROUTINE = 396,
+     SHOW_PROXYVIP = 397,
+     SHOW_PROXYMEMORY = 398,
+     OBJPOOL = 399,
+     SHOW_SQLAUDIT = 400,
+     SHOW_WARNLOG = 401,
+     SHOW_PROXYSTAT = 402,
+     REFRESH = 403,
+     SHOW_PROXYTRACE = 404,
+     SHOW_PROXYINFO = 405,
+     BINARY = 406,
+     UPGRADE = 407,
+     IDC = 408,
+     SHOW_ELASTIC_ID = 409,
+     SHOW_TOPOLOGY = 410,
+     GROUP_NAME = 411,
+     SHOW_DB_VERSION = 412,
+     SHOW_DATABASES = 413,
+     SHOW_TABLES = 414,
+     SHOW_FULL_TABLES = 415,
+     SELECT_DATABASE = 416,
+     SHOW_CREATE_TABLE = 417,
+     SELECT_PROXY_VERSION = 418,
+     SHOW_COLUMNS = 419,
+     SHOW_INDEX = 420,
+     ALTER_PROXYCONFIG = 421,
+     ALTER_PROXYRESOURCE = 422,
+     PING_PROXY = 423,
+     KILL_PROXYSESSION = 424,
+     KILL_GLOBALSESSION = 425,
+     KILL = 426,
+     QUERY = 427,
+     SHOW_MASTER_STATUS = 428,
+     SHOW_BINARY_LOGS = 429,
+     SHOW_BINLOG_EVENTS = 430,
+     PURGE_BINARY_LOGS = 431,
+     RESET_MASTER = 432,
+     SHOW_BINLOG_SERVER_FOR_TENANT = 433
    };
 #endif
 
@@ -811,22 +816,22 @@ union yyalloc
 #endif
 
 /* YYFINAL -- State number of the termination state.  */
-#define YYFINAL  322
+#define YYFINAL  314
 /* YYLAST -- Last index in YYTABLE.  */
-#define YYLAST   1614
+#define YYLAST   1384
 
 /* YYNTOKENS -- Number of terminals.  */
-#define YYNTOKENS  182
+#define YYNTOKENS  190
 /* YYNNTS -- Number of nonterminals.  */
-#define YYNNTS  137
+#define YYNNTS  138
 /* YYNRULES -- Number of rules.  */
-#define YYNRULES  442
+#define YYNRULES  435
 /* YYNRULES -- Number of states.  */
-#define YYNSTATES  713
+#define YYNSTATES  715
 
 /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
 #define YYUNDEFTOK  2
-#define YYMAXUTOK   425
+#define YYMAXUTOK   433
 
 #define YYTRANSLATE(YYX)						\
   ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
@@ -837,16 +842,16 @@ static const yytype_uint8 yytranslate[] =
        0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,     2,     2,   180,     2,     2,     2,     2,
-     175,   176,   181,     2,   173,     2,   177,     2,     2,     2,
-       2,     2,     2,     2,     2,     2,     2,     2,     2,   171,
-       2,   174,     2,     2,   172,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,   188,     2,     2,     2,     2,
+     183,   184,   189,     2,   181,     2,   185,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,   179,
+       2,   182,     2,     2,   180,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,   178,     2,   179,     2,     2,     2,     2,
+       2,     2,     2,   186,     2,   187,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
@@ -876,7 +881,8 @@ static const yytype_uint8 yytranslate[] =
      135,   136,   137,   138,   139,   140,   141,   142,   143,   144,
      145,   146,   147,   148,   149,   150,   151,   152,   153,   154,
      155,   156,   157,   158,   159,   160,   161,   162,   163,   164,
-     165,   166,   167,   168,   169,   170
+     165,   166,   167,   168,   169,   170,   171,   172,   173,   174,
+     175,   176,   177,   178
 };
 
 #if YYDEBUG
@@ -887,234 +893,231 @@ static const yytype_uint16 yyprhs[] =
        0,     0,     3,     5,     7,     9,    12,    15,    18,    22,
       24,    27,    31,    33,    36,    38,    40,    42,    44,    46,
       48,    50,    52,    54,    56,    58,    60,    62,    64,    66,
-      68,    70,    72,    74,    76,    78,    80,    82,    84,    88,
-      91,    94,    97,   100,   103,   106,   108,   110,   113,   115,
-     117,   119,   121,   122,   124,   126,   129,   131,   133,   135,
-     137,   139,   141,   143,   145,   148,   153,   156,   158,   160,
-     164,   167,   171,   174,   177,   181,   185,   187,   189,   191,
-     193,   195,   197,   199,   201,   203,   206,   208,   210,   212,
-     213,   216,   217,   219,   222,   228,   232,   234,   238,   241,
-     245,   247,   249,   251,   253,   255,   257,   259,   261,   263,
-     265,   267,   269,   271,   273,   276,   279,   283,   289,   293,
-     299,   300,   303,   304,   307,   311,   315,   321,   323,   325,
-     329,   335,   343,   345,   349,   351,   353,   355,   357,   359,
-     361,   367,   369,   373,   379,   380,   382,   386,   388,   390,
-     392,   395,   399,   401,   403,   406,   408,   411,   415,   419,
-     421,   423,   425,   426,   430,   432,   436,   440,   446,   449,
-     452,   457,   460,   463,   467,   469,   474,   481,   486,   492,
-     499,   504,   508,   510,   512,   514,   516,   519,   523,   529,
-     536,   543,   550,   557,   564,   572,   579,   586,   593,   600,
-     609,   618,   619,   622,   625,   628,   630,   634,   636,   641,
-     646,   650,   657,   662,   667,   674,   678,   680,   684,   685,
-     689,   693,   697,   701,   705,   709,   713,   717,   721,   725,
-     731,   735,   736,   738,   739,   741,   743,   745,   747,   750,
-     752,   755,   757,   760,   763,   767,   768,   770,   773,   775,
-     778,   780,   783,   786,   787,   790,   795,   797,   802,   808,
-     810,   815,   820,   826,   827,   829,   831,   833,   834,   836,
-     840,   844,   847,   849,   851,   853,   855,   857,   859,   861,
-     863,   865,   867,   869,   871,   873,   875,   877,   879,   881,
-     883,   885,   887,   889,   891,   893,   894,   897,   902,   907,
-     908,   911,   912,   915,   918,   920,   922,   926,   929,   933,
-     938,   940,   943,   944,   947,   951,   954,   957,   960,   961,
-     964,   968,   971,   975,   978,   982,   986,   991,   993,   996,
-     999,  1003,  1006,  1009,  1010,  1012,  1014,  1017,  1020,  1024,
-    1027,  1029,  1032,  1034,  1037,  1040,  1043,  1046,  1047,  1049,
-    1053,  1059,  1062,  1066,  1069,  1070,  1072,  1075,  1078,  1081,
-    1084,  1089,  1095,  1101,  1105,  1107,  1110,  1114,  1118,  1121,
-    1124,  1128,  1132,  1133,  1136,  1138,  1142,  1146,  1150,  1151,
-    1153,  1155,  1159,  1162,  1166,  1169,  1172,  1174,  1175,  1178,
-    1183,  1186,  1188,  1192,  1195,  1200,  1204,  1210,  1212,  1214,
-    1216,  1218,  1220,  1222,  1224,  1226,  1228,  1230,  1232,  1234,
-    1236,  1238,  1240,  1242,  1244,  1246,  1248,  1250,  1252,  1254,
-    1256,  1258,  1260,  1262,  1264,  1266,  1268,  1270,  1272,  1274,
-    1276,  1278,  1280,  1282,  1284,  1286,  1288,  1290,  1292,  1294,
-    1296,  1298,  1300
+      68,    70,    72,    74,    76,    78,    80,    82,    84,    86,
+      90,    93,    96,    99,   102,   105,   108,   110,   112,   115,
+     117,   119,   121,   123,   124,   126,   128,   131,   133,   135,
+     137,   139,   141,   143,   145,   147,   150,   155,   158,   160,
+     162,   166,   169,   173,   176,   179,   183,   187,   189,   191,
+     193,   195,   197,   199,   201,   203,   205,   208,   210,   212,
+     214,   215,   218,   219,   221,   224,   230,   234,   236,   240,
+     242,   244,   246,   248,   250,   252,   254,   256,   258,   260,
+     262,   264,   266,   268,   271,   274,   278,   284,   288,   294,
+     295,   298,   299,   302,   306,   310,   316,   318,   320,   324,
+     330,   338,   340,   344,   346,   350,   352,   354,   356,   358,
+     360,   362,   368,   370,   374,   380,   381,   383,   387,   389,
+     391,   393,   396,   400,   402,   404,   407,   409,   412,   416,
+     420,   422,   424,   426,   427,   431,   433,   437,   441,   447,
+     450,   453,   458,   461,   464,   468,   470,   475,   482,   487,
+     493,   500,   505,   509,   511,   513,   515,   517,   520,   524,
+     530,   537,   544,   551,   558,   565,   573,   580,   587,   594,
+     601,   610,   619,   626,   627,   630,   633,   636,   638,   642,
+     644,   649,   654,   658,   665,   669,   674,   679,   686,   690,
+     692,   696,   697,   701,   705,   709,   713,   717,   721,   725,
+     729,   733,   737,   741,   747,   751,   752,   754,   755,   757,
+     759,   761,   763,   766,   768,   771,   773,   776,   779,   783,
+     784,   786,   789,   791,   794,   796,   799,   802,   803,   806,
+     811,   813,   818,   824,   826,   831,   836,   842,   843,   845,
+     847,   849,   850,   852,   856,   860,   863,   865,   867,   869,
+     871,   873,   875,   877,   879,   881,   883,   885,   887,   889,
+     891,   893,   895,   897,   899,   901,   903,   905,   907,   909,
+     911,   913,   915,   917,   919,   921,   922,   925,   930,   935,
+     936,   939,   940,   943,   946,   948,   950,   954,   957,   961,
+     966,   968,   971,   972,   975,   979,   982,   985,   988,   989,
+     992,   996,   999,  1003,  1006,  1010,  1014,  1019,  1021,  1024,
+    1027,  1031,  1034,  1037,  1038,  1040,  1042,  1045,  1048,  1052,
+    1055,  1057,  1060,  1062,  1065,  1068,  1071,  1074,  1075,  1077,
+    1081,  1087,  1090,  1094,  1097,  1098,  1100,  1103,  1106,  1109,
+    1112,  1117,  1123,  1129,  1133,  1135,  1138,  1142,  1146,  1149,
+    1152,  1156,  1160,  1161,  1164,  1166,  1170,  1174,  1178,  1179,
+    1181,  1183,  1187,  1190,  1194,  1197,  1200,  1202,  1203,  1206,
+    1211,  1214,  1216,  1220,  1223,  1228,  1232,  1238,  1240,  1242,
+    1244,  1246,  1248,  1250,  1252,  1254,  1256,  1258,  1260,  1262,
+    1264,  1266,  1268,  1270,  1272,  1274,  1276,  1278,  1280,  1282,
+    1284,  1286,  1288,  1290,  1292,  1294
 };
 
 /* YYRHS -- A `-1'-separated list of the rules' RHS.  */
 static const yytype_int16 yyrhs[] =
 {
-     183,     0,    -1,   184,    -1,     1,    -1,   185,    -1,   184,
-     185,    -1,   186,    50,    -1,   186,   171,    -1,   186,   171,
-      50,    -1,   171,    -1,   171,    50,    -1,    56,   186,   171,
-      -1,   187,    -1,   246,   187,    -1,   188,    -1,   237,    -1,
-     242,    -1,   238,    -1,   239,    -1,   240,    -1,   189,    -1,
-     307,    -1,   272,    -1,   208,    -1,   273,    -1,   311,    -1,
-     312,    -1,   220,    -1,   221,    -1,   222,    -1,   223,    -1,
-     224,    -1,   225,    -1,   226,    -1,   190,    -1,   199,    -1,
-     241,    -1,   313,    -1,   260,   204,   203,    -1,   201,   188,
-      -1,   201,   237,    -1,   201,   239,    -1,   201,   240,    -1,
-     201,   238,    -1,   201,   241,    -1,   191,    -1,   200,    -1,
-      14,   192,    -1,    15,    -1,    16,    -1,    17,    -1,    18,
-      -1,    -1,    19,    -1,    64,    -1,    21,    64,    -1,   188,
-      -1,   237,    -1,   238,    -1,   240,    -1,   239,    -1,   313,
-      -1,   226,    -1,   241,    -1,   172,    85,    -1,   194,   173,
-     172,    85,    -1,   172,    85,    -1,   195,    -1,   193,    -1,
-      29,   318,    27,    -1,    30,   318,    -1,    30,   318,    31,
-      -1,   197,   196,    -1,   198,   194,    -1,    15,    29,   318,
-      -1,    32,    29,   318,    -1,    22,    -1,    23,    -1,    24,
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+     118,   118,    -1,   150,   151,    -1,   150,   152,    -1,   150,
+     153,    -1,   166,    12,    84,   182,    -1,   166,    12,    84,
+     182,    84,    -1,   166,    12,    84,   182,   118,    -1,   167,
+       6,    84,    -1,   168,    -1,   169,   118,    -1,   169,   118,
+     118,    -1,   170,    84,   118,    -1,   170,    84,    -1,   171,
+     118,    -1,   171,   121,   118,    -1,   171,   172,   118,    -1,
+      -1,    70,   189,    -1,    56,    -1,    57,    58,   317,    -1,
+      65,    56,    84,    -1,    65,    57,    84,    -1,    -1,   318,
+      -1,   319,    -1,   318,   181,   319,    -1,    59,    60,    -1,
+      61,    62,    63,    -1,    89,    84,    -1,    90,    84,    -1,
+      84,    -1,    -1,   140,    84,    -1,   140,   183,    84,   184,
+      -1,   325,   323,    -1,   327,    -1,   327,   185,   327,    -1,
+     327,   327,    -1,   327,   185,   327,   327,    -1,   327,    71,
+     327,    -1,   327,   185,   327,    71,   327,    -1,    57,    -1,
+      65,    -1,    56,    -1,    58,    -1,    62,    -1,    67,    -1,
+      66,    -1,    70,    -1,    69,    -1,    68,    -1,   120,    -1,
+     121,    -1,   123,    -1,   127,    -1,   128,    -1,   130,    -1,
+     132,    -1,   133,    -1,   144,    -1,   148,    -1,   152,    -1,
+     153,    -1,   172,    -1,   156,    -1,    53,    -1,    54,    -1,
+      55,    -1,    84,    -1,   326,    -1
 };
 
 /* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
 static const yytype_uint16 yyrline[] =
 {
-       0,   336,   336,   337,   339,   340,   342,   343,   344,   345,
-     346,   347,   349,   350,   352,   353,   354,   355,   356,   357,
-     358,   359,   360,   361,   362,   363,   364,   365,   366,   367,
-     368,   369,   370,   371,   372,   373,   374,   375,   377,   379,
-     380,   381,   382,   383,   384,   386,   387,   389,   390,   391,
-     392,   393,   395,   396,   397,   398,   400,   401,   402,   403,
-     404,   405,   406,   407,   409,   416,   424,   432,   433,   436,
-     442,   447,   453,   456,   459,   464,   470,   471,   472,   473,
-     474,   475,   476,   477,   479,   480,   482,   483,   484,   486,
-     487,   489,   490,   492,   493,   494,   496,   497,   499,   500,
-     502,   503,   504,   505,   506,   507,   509,   510,   511,   512,
-     513,   514,   515,   516,   517,   518,   524,   529,   536,   541,
-     548,   549,   551,   552,   554,   558,   563,   568,   570,   571,
-     576,   581,   588,   591,   597,   598,   599,   600,   601,   602,
-     605,   607,   611,   616,   624,   627,   632,   637,   642,   647,
-     652,   657,   662,   670,   671,   673,   675,   676,   677,   679,
-     680,   682,   684,   685,   687,   688,   690,   694,   695,   696,
-     697,   698,   703,   705,   706,   708,   712,   716,   720,   724,
-     728,   732,   736,   741,   746,   752,   753,   755,   756,   757,
-     758,   759,   760,   761,   762,   768,   769,   770,   771,   772,
-     773,   775,   776,   778,   779,   780,   782,   783,   785,   790,
-     795,   796,   797,   799,   800,   802,   803,   805,   813,   814,
-     816,   817,   818,   819,   820,   821,   822,   823,   824,   825,
-     831,   833,   834,   836,   837,   839,   840,   842,   843,   844,
-     845,   846,   847,   848,   849,   851,   852,   853,   855,   856,
-     857,   858,   859,   860,   861,   863,   864,   865,   866,   871,
-     872,   873,   874,   876,   877,   878,   879,   881,   882,   885,
-     886,   887,   890,   891,   892,   893,   894,   895,   896,   897,
-     898,   899,   900,   901,   902,   903,   904,   905,   906,   907,
-     908,   909,   910,   911,   912,   917,   919,   923,   928,   936,
-     937,   941,   942,   945,   947,   948,   949,   953,   954,   955,
-     959,   961,   963,   964,   965,   966,   967,   970,   972,   973,
-     974,   975,   976,   977,   978,   979,   980,   984,   985,   989,
-     990,   995,   998,  1000,  1001,  1002,  1003,  1007,  1008,  1009,
-    1013,  1014,  1018,  1019,  1023,  1024,  1027,  1029,  1030,  1031,
-    1032,  1036,  1037,  1040,  1042,  1043,  1044,  1048,  1049,  1050,
-    1054,  1055,  1056,  1060,  1064,  1068,  1069,  1073,  1074,  1078,
-    1079,  1080,  1083,  1084,  1087,  1091,  1092,  1093,  1095,  1096,
-    1098,  1099,  1102,  1103,  1106,  1112,  1115,  1117,  1118,  1119,
-    1121,  1126,  1129,  1133,  1137,  1142,  1146,  1152,  1153,  1154,
-    1155,  1156,  1157,  1158,  1159,  1160,  1161,  1162,  1163,  1164,
-    1165,  1166,  1167,  1168,  1169,  1170,  1171,  1172,  1173,  1174,
-    1175,  1176,  1177,  1178,  1179,  1180,  1181,  1182,  1183,  1184,
-    1185,  1186,  1187,  1188,  1189,  1190,  1191,  1192,  1193,  1194,
-    1195,  1197,  1198
+       0,   334,   334,   335,   337,   338,   340,   341,   342,   343,
+     344,   345,   347,   348,   350,   351,   352,   353,   354,   355,
+     356,   357,   358,   359,   360,   361,   362,   363,   364,   365,
+     366,   367,   368,   369,   370,   371,   372,   373,   374,   376,
+     378,   379,   380,   381,   382,   383,   385,   386,   388,   389,
+     390,   391,   392,   394,   395,   396,   397,   399,   400,   401,
+     402,   403,   404,   405,   406,   408,   415,   423,   431,   432,
+     435,   441,   446,   452,   455,   458,   463,   469,   470,   471,
+     472,   473,   474,   475,   476,   478,   479,   481,   482,   483,
+     485,   486,   488,   489,   491,   492,   493,   495,   496,   498,
+     499,   500,   501,   502,   504,   505,   506,   507,   508,   509,
+     510,   511,   512,   513,   514,   521,   526,   533,   538,   545,
+     546,   548,   549,   551,   555,   560,   565,   567,   568,   573,
+     578,   585,   586,   592,   595,   601,   602,   603,   604,   605,
+     606,   609,   611,   615,   620,   628,   631,   636,   641,   646,
+     651,   656,   661,   666,   674,   675,   677,   679,   680,   681,
+     683,   684,   686,   688,   689,   691,   692,   694,   698,   699,
+     700,   701,   702,   707,   709,   710,   712,   716,   720,   724,
+     728,   732,   736,   740,   745,   750,   756,   757,   759,   760,
+     761,   762,   763,   764,   765,   766,   772,   773,   774,   775,
+     776,   777,   778,   779,   780,   782,   783,   784,   786,   787,
+     789,   794,   799,   800,   801,   802,   804,   805,   807,   808,
+     810,   818,   819,   821,   822,   823,   824,   825,   826,   827,
+     828,   829,   830,   831,   837,   839,   840,   842,   843,   845,
+     846,   848,   849,   850,   851,   852,   853,   854,   855,   857,
+     858,   859,   861,   862,   863,   864,   865,   866,   867,   869,
+     870,   871,   872,   877,   878,   879,   880,   882,   883,   884,
+     885,   887,   888,   891,   892,   893,   896,   897,   898,   899,
+     900,   901,   902,   903,   904,   905,   906,   907,   908,   909,
+     910,   911,   912,   913,   914,   915,   916,   917,   918,   920,
+     921,   922,   923,   924,   925,   930,   932,   936,   941,   949,
+     950,   954,   955,   958,   960,   961,   962,   966,   967,   968,
+     972,   974,   976,   977,   978,   979,   980,   983,   985,   986,
+     987,   988,   989,   990,   991,   992,   993,   997,   998,  1002,
+    1003,  1008,  1011,  1013,  1014,  1015,  1016,  1020,  1021,  1022,
+    1026,  1027,  1031,  1032,  1036,  1037,  1040,  1042,  1043,  1044,
+    1045,  1049,  1050,  1053,  1055,  1056,  1057,  1061,  1062,  1063,
+    1067,  1068,  1069,  1073,  1077,  1081,  1082,  1086,  1087,  1091,
+    1092,  1093,  1096,  1097,  1100,  1104,  1105,  1106,  1108,  1109,
+    1111,  1112,  1115,  1116,  1119,  1125,  1128,  1130,  1131,  1132,
+    1134,  1139,  1142,  1146,  1150,  1155,  1159,  1165,  1166,  1167,
+    1168,  1169,  1170,  1171,  1172,  1173,  1174,  1175,  1176,  1177,
+    1178,  1179,  1180,  1181,  1182,  1183,  1184,  1185,  1186,  1187,
+    1188,  1189,  1190,  1191,  1193,  1194
 };
 #endif
 
@@ -1137,26 +1140,29 @@ static const char *const yytname[] =
   "ONLY", "WITH", "CONSISTENT", "SNAPSHOT", "INDEX", "XA", "WARNINGS",
   "ERRORS", "TRACE", "QUICK", "COUNT", "AS", "WHERE", "VALUES", "ORDER",
   "GROUP", "HAVING", "INTO", "UNION", "FOR", "TX_READ_ONLY",
-  "AUTOCOMMIT_0", "SELECT_OBPROXY_ROUTE_ADDR", "SET_OBPROXY_ROUTE_ADDR",
-  "NAME_OB_DOT", "NAME_OB", "EXPLAIN", "DESC", "DESCRIBE", "NAME_STR",
-  "USE", "HELP", "SET_NAMES", "SET_CHARSET", "SET_PASSWORD", "SET_DEFAULT",
+  "SELECT_OBPROXY_ROUTE_ADDR", "SET_OBPROXY_ROUTE_ADDR", "NAME_OB_DOT",
+  "NAME_OB", "EXPLAIN", "DESC", "DESCRIBE", "NAME_STR", "USE", "HELP",
+  "SET_NAMES", "SET_CHARSET", "SET_PASSWORD", "SET_DEFAULT",
   "SET_OB_READ_CONSISTENCY", "SET_TX_READ_ONLY", "GLOBAL", "SESSION",
   "NUMBER_VAL", "GROUP_ID", "TABLE_ID", "ELASTIC_ID", "TESTLOAD",
   "ODP_COMMENT", "TNT_ID", "DISASTER_STATUS", "TRACE_ID", "RPC_ID",
-  "DBP_COMMENT", "ROUTE_TAG", "SYS_TAG", "TABLE_NAME", "SCAN_ALL",
-  "PARALL", "SHARD_KEY", "INT_NUM", "SHOW_PROXYNET", "THREAD",
-  "CONNECTION", "LIMIT", "OFFSET", "SHOW_PROCESSLIST", "SHOW_PROXYSESSION",
-  "SHOW_GLOBALSESSION", "ATTRIBUTE", "VARIABLES", "ALL", "STAT",
-  "SHOW_PROXYCONFIG", "DIFF", "USER", "LIKE", "SHOW_PROXYSM",
-  "SHOW_PROXYCLUSTER", "SHOW_PROXYRESOURCE", "SHOW_PROXYCONGESTION",
-  "SHOW_PROXYROUTE", "PARTITION", "ROUTINE", "SHOW_PROXYVIP",
-  "SHOW_PROXYMEMORY", "OBJPOOL", "SHOW_SQLAUDIT", "SHOW_WARNLOG",
-  "SHOW_PROXYSTAT", "REFRESH", "SHOW_PROXYTRACE", "SHOW_PROXYINFO",
-  "BINARY", "UPGRADE", "IDC", "SHOW_TOPOLOGY", "GROUP_NAME",
-  "SHOW_DB_VERSION", "SHOW_DATABASES", "SHOW_TABLES", "SHOW_FULL_TABLES",
-  "SELECT_DATABASE", "SHOW_CREATE_TABLE", "SELECT_PROXY_VERSION",
-  "SHOW_COLUMNS", "SHOW_INDEX", "ALTER_PROXYCONFIG", "ALTER_PROXYRESOURCE",
-  "PING_PROXY", "KILL_PROXYSESSION", "KILL_GLOBALSESSION", "KILL", "QUERY",
+  "TARGET_DB_SERVER", "DBP_COMMENT", "ROUTE_TAG", "SYS_TAG", "TABLE_NAME",
+  "SCAN_ALL", "STICKY_SESSION", "PARALL", "SHARD_KEY", "INT_NUM",
+  "SHOW_PROXYNET", "THREAD", "CONNECTION", "LIMIT", "OFFSET",
+  "SHOW_PROCESSLIST", "SHOW_PROXYSESSION", "SHOW_GLOBALSESSION",
+  "ATTRIBUTE", "VARIABLES", "ALL", "STAT", "SHOW_PROXYCONFIG", "DIFF",
+  "USER", "LIKE", "SHOW_PROXYSM", "SHOW_PROXYCLUSTER",
+  "SHOW_PROXYRESOURCE", "SHOW_PROXYCONGESTION", "SHOW_PROXYROUTE",
+  "PARTITION", "ROUTINE", "SHOW_PROXYVIP", "SHOW_PROXYMEMORY", "OBJPOOL",
+  "SHOW_SQLAUDIT", "SHOW_WARNLOG", "SHOW_PROXYSTAT", "REFRESH",
+  "SHOW_PROXYTRACE", "SHOW_PROXYINFO", "BINARY", "UPGRADE", "IDC",
+  "SHOW_ELASTIC_ID", "SHOW_TOPOLOGY", "GROUP_NAME", "SHOW_DB_VERSION",
+  "SHOW_DATABASES", "SHOW_TABLES", "SHOW_FULL_TABLES", "SELECT_DATABASE",
+  "SHOW_CREATE_TABLE", "SELECT_PROXY_VERSION", "SHOW_COLUMNS",
+  "SHOW_INDEX", "ALTER_PROXYCONFIG", "ALTER_PROXYRESOURCE", "PING_PROXY",
+  "KILL_PROXYSESSION", "KILL_GLOBALSESSION", "KILL", "QUERY",
+  "SHOW_MASTER_STATUS", "SHOW_BINARY_LOGS", "SHOW_BINLOG_EVENTS",
+  "PURGE_BINARY_LOGS", "RESET_MASTER", "SHOW_BINLOG_SERVER_FOR_TENANT",
   "';'", "'@'", "','", "'='", "'('", "')'", "'.'", "'{'", "'}'", "'#'",
   "'*'", "$accept", "root", "sql_stmts", "sql_stmt", "comment_stmt",
   "stmt", "select_stmt", "explain_stmt", "ddl_stmt", "mysql_ddl_stmt",
@@ -1165,10 +1171,10 @@ static const char *const yytname[] =
   "text_ps_prepare_stmt", "text_ps_execute_stmt", "text_ps_stmt",
   "oracle_ddl_stmt", "explain_or_desc_stmt", "explain_or_desc", "opt_from",
   "select_expr_list", "select_tx_read_only_stmt",
-  "select_proxy_version_stmt", "set_autocommit_0_stmt", "hooked_stmt",
-  "shard_special_stmt", "show_columns_stmt", "show_index_stmt",
-  "opt_show_like", "opt_show_from", "show_tables_stmt",
-  "show_table_status_stmt", "show_db_version_stmt", "show_es_id_stmt",
+  "select_proxy_version_stmt", "hooked_stmt", "shard_special_stmt",
+  "show_columns_stmt", "show_index_stmt", "opt_show_like", "opt_show_from",
+  "show_tables_stmt", "show_table_status_stmt", "show_db_version_stmt",
+  "show_es_id_stmt", "show_topology_stmt",
   "select_obproxy_route_addr_stmt", "set_obproxy_route_addr_stmt",
   "set_names_stmt", "set_charset_stmt", "set_password_stmt",
   "set_default_stmt", "set_ob_read_consistency_stmt",
@@ -1185,8 +1191,8 @@ static const char *const yytname[] =
   "insert_with_opt_hint", "insert_all_when", "replace_with_opt_hint",
   "merge_with_opt_hint", "hint_list_with_end", "hint_list", "hint",
   "opt_read_consistency", "opt_quick", "show_stmt", "icmd_stmt",
-  "opt_limit", "opt_like", "opt_large_like", "show_proxynet",
-  "opt_show_net", "show_proxyconfig", "show_processlist",
+  "binlog_stmt", "opt_limit", "opt_like", "opt_large_like",
+  "show_proxynet", "opt_show_net", "show_proxyconfig", "show_processlist",
   "show_globalsession", "opt_show_global_session", "show_proxysession",
   "opt_show_session", "show_proxysm", "show_proxycluster",
   "show_proxyresource", "show_proxycongestion", "opt_show_congestion",
@@ -1224,59 +1230,58 @@ static const yytype_uint16 yytoknum[] =
      395,   396,   397,   398,   399,   400,   401,   402,   403,   404,
      405,   406,   407,   408,   409,   410,   411,   412,   413,   414,
      415,   416,   417,   418,   419,   420,   421,   422,   423,   424,
-     425,    59,    64,    44,    61,    40,    41,    46,   123,   125,
-      35,    42
+     425,   426,   427,   428,   429,   430,   431,   432,   433,    59,
+      64,    44,    61,    40,    41,    46,   123,   125,    35,    42
 };
 # endif
 
 /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
 static const yytype_uint16 yyr1[] =
 {
-       0,   182,   183,   183,   184,   184,   185,   185,   185,   185,
-     185,   185,   186,   186,   187,   187,   187,   187,   187,   187,
-     187,   187,   187,   187,   187,   187,   187,   187,   187,   187,
-     187,   187,   187,   187,   187,   187,   187,   187,   188,   189,
-     189,   189,   189,   189,   189,   190,   190,   191,   191,   191,
-     191,   191,   192,   192,   192,   192,   193,   193,   193,   193,
-     193,   193,   193,   193,   194,   194,   195,   196,   196,   197,
-     198,   198,   199,   199,   199,   199,   200,   200,   200,   200,
-     200,   200,   200,   200,   201,   201,   202,   202,   202,   203,
-     203,   204,   204,   205,   205,   205,   206,   206,   207,   207,
-     208,   208,   208,   208,   208,   208,   209,   209,   209,   209,
-     209,   209,   209,   209,   209,   209,   210,   210,   211,   211,
-     212,   212,   213,   213,   214,   214,   215,   216,   217,   217,
-     217,   217,   218,   219,   220,   221,   222,   223,   224,   225,
-     226,   227,   227,   227,   228,   228,   228,   229,   229,   229,
-     229,   229,   229,   230,   230,   231,   232,   232,   232,   233,
-     233,   234,   235,   235,   236,   236,   237,   237,   238,   239,
-     240,   241,   242,   243,   243,   244,   244,   244,   244,   244,
-     244,   244,   245,   245,   245,   246,   246,   247,   247,   247,
-     247,   247,   247,   247,   247,   247,   247,   247,   247,   247,
-     247,   248,   248,   249,   249,   249,   250,   250,   251,   251,
-     251,   251,   251,   252,   252,   253,   253,   254,   255,   255,
-     256,   256,   256,   256,   256,   256,   256,   256,   256,   256,
-     256,   257,   257,   258,   258,   259,   259,   260,   260,   261,
-     261,   262,   262,   263,   263,   264,   264,   264,   265,   265,
-     266,   266,   267,   268,   268,   269,   269,   269,   269,   269,
-     269,   269,   269,   270,   270,   270,   270,   271,   271,   272,
-     272,   272,   273,   273,   273,   273,   273,   273,   273,   273,
-     273,   273,   273,   273,   273,   273,   273,   273,   273,   273,
-     273,   273,   273,   273,   273,   274,   274,   274,   274,   275,
-     275,   276,   276,   277,   278,   278,   278,   279,   279,   279,
-     280,   281,   282,   282,   282,   282,   282,   283,   284,   284,
-     284,   284,   284,   284,   284,   284,   284,   285,   285,   286,
-     286,   287,   288,   289,   289,   289,   289,   290,   290,   290,
-     291,   291,   292,   292,   293,   293,   294,   295,   295,   295,
-     295,   296,   296,   297,   298,   298,   298,   299,   299,   299,
-     300,   300,   300,   301,   302,   303,   303,   304,   304,   305,
-     305,   305,   306,   306,   307,   307,   307,   307,   308,   308,
-     309,   309,   310,   310,   311,   312,   313,   314,   314,   314,
-     315,   316,   316,   316,   316,   316,   316,   317,   317,   317,
-     317,   317,   317,   317,   317,   317,   317,   317,   317,   317,
-     317,   317,   317,   317,   317,   317,   317,   317,   317,   317,
-     317,   317,   317,   317,   317,   317,   317,   317,   317,   317,
-     317,   317,   317,   317,   317,   317,   317,   317,   317,   317,
-     317,   318,   318
+       0,   190,   191,   191,   192,   192,   193,   193,   193,   193,
+     193,   193,   194,   194,   195,   195,   195,   195,   195,   195,
+     195,   195,   195,   195,   195,   195,   195,   195,   195,   195,
+     195,   195,   195,   195,   195,   195,   195,   195,   195,   196,
+     197,   197,   197,   197,   197,   197,   198,   198,   199,   199,
+     199,   199,   199,   200,   200,   200,   200,   201,   201,   201,
+     201,   201,   201,   201,   201,   202,   202,   203,   204,   204,
+     205,   206,   206,   207,   207,   207,   207,   208,   208,   208,
+     208,   208,   208,   208,   208,   209,   209,   210,   210,   210,
+     211,   211,   212,   212,   213,   213,   213,   214,   214,   215,
+     215,   215,   215,   215,   216,   216,   216,   216,   216,   216,
+     216,   216,   216,   216,   216,   217,   217,   218,   218,   219,
+     219,   220,   220,   221,   221,   222,   223,   224,   224,   224,
+     224,   225,   225,   226,   227,   228,   229,   230,   231,   232,
+     233,   234,   235,   235,   235,   236,   236,   236,   237,   237,
+     237,   237,   237,   237,   238,   238,   239,   240,   240,   240,
+     241,   241,   242,   243,   243,   244,   244,   245,   245,   246,
+     247,   248,   249,   250,   251,   251,   252,   252,   252,   252,
+     252,   252,   252,   253,   253,   253,   254,   254,   255,   255,
+     255,   255,   255,   255,   255,   255,   255,   255,   255,   255,
+     255,   255,   255,   256,   256,   257,   257,   257,   258,   258,
+     259,   259,   259,   259,   259,   259,   260,   260,   261,   261,
+     262,   263,   263,   264,   264,   264,   264,   264,   264,   264,
+     264,   264,   264,   264,   264,   265,   265,   266,   266,   267,
+     267,   268,   268,   269,   269,   270,   270,   271,   271,   272,
+     272,   272,   273,   273,   274,   274,   275,   276,   276,   277,
+     277,   277,   277,   277,   277,   277,   277,   278,   278,   278,
+     278,   279,   279,   280,   280,   280,   281,   281,   281,   281,
+     281,   281,   281,   281,   281,   281,   281,   281,   281,   281,
+     281,   281,   281,   281,   281,   281,   281,   281,   281,   282,
+     282,   282,   282,   282,   282,   283,   283,   283,   283,   284,
+     284,   285,   285,   286,   287,   287,   287,   288,   288,   288,
+     289,   290,   291,   291,   291,   291,   291,   292,   293,   293,
+     293,   293,   293,   293,   293,   293,   293,   294,   294,   295,
+     295,   296,   297,   298,   298,   298,   298,   299,   299,   299,
+     300,   300,   301,   301,   302,   302,   303,   304,   304,   304,
+     304,   305,   305,   306,   307,   307,   307,   308,   308,   308,
+     309,   309,   309,   310,   311,   312,   312,   313,   313,   314,
+     314,   314,   315,   315,   316,   316,   316,   316,   317,   317,
+     318,   318,   319,   319,   320,   321,   322,   323,   323,   323,
+     324,   325,   325,   325,   325,   325,   325,   326,   326,   326,
+     326,   326,   326,   326,   326,   326,   326,   326,   326,   326,
+     326,   326,   326,   326,   326,   326,   326,   326,   326,   326,
+     326,   326,   326,   326,   327,   327
 };
 
 /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
@@ -1285,31 +1290,32 @@ static const yytype_uint8 yyr2[] =
        0,     2,     1,     1,     1,     2,     2,     2,     3,     1,
        2,     3,     1,     2,     1,     1,     1,     1,     1,     1,
        1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
-       1,     1,     1,     1,     1,     1,     1,     1,     3,     2,
-       2,     2,     2,     2,     2,     1,     1,     2,     1,     1,
-       1,     1,     0,     1,     1,     2,     1,     1,     1,     1,
-       1,     1,     1,     1,     2,     4,     2,     1,     1,     3,
-       2,     3,     2,     2,     3,     3,     1,     1,     1,     1,
-       1,     1,     1,     1,     1,     2,     1,     1,     1,     0,
-       2,     0,     1,     2,     5,     3,     1,     3,     2,     3,
+       1,     1,     1,     1,     1,     1,     1,     1,     1,     3,
+       2,     2,     2,     2,     2,     2,     1,     1,     2,     1,
+       1,     1,     1,     0,     1,     1,     2,     1,     1,     1,
+       1,     1,     1,     1,     1,     2,     4,     2,     1,     1,
+       3,     2,     3,     2,     2,     3,     3,     1,     1,     1,
+       1,     1,     1,     1,     1,     1,     2,     1,     1,     1,
+       0,     2,     0,     1,     2,     5,     3,     1,     3,     1,
+       1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
+       1,     1,     1,     2,     2,     3,     5,     3,     5,     0,
+       2,     0,     2,     3,     3,     5,     1,     1,     3,     5,
+       7,     1,     3,     1,     3,     1,     1,     1,     1,     1,
+       1,     5,     1,     3,     5,     0,     1,     3,     1,     1,
+       1,     2,     3,     1,     1,     2,     1,     2,     3,     3,
+       1,     1,     1,     0,     3,     1,     3,     3,     5,     2,
+       2,     4,     2,     2,     3,     1,     4,     6,     4,     5,
+       6,     4,     3,     1,     1,     1,     1,     2,     3,     5,
+       6,     6,     6,     6,     6,     7,     6,     6,     6,     6,
+       8,     8,     6,     0,     2,     2,     2,     1,     3,     1,
+       4,     4,     3,     6,     3,     4,     4,     6,     3,     1,
+       3,     0,     3,     3,     3,     3,     3,     3,     3,     3,
+       3,     3,     3,     5,     3,     0,     1,     0,     1,     1,
+       1,     1,     2,     1,     2,     1,     2,     2,     3,     0,
+       1,     2,     1,     2,     1,     2,     2,     0,     2,     4,
+       1,     4,     5,     1,     4,     4,     5,     0,     1,     1,
+       1,     0,     1,     3,     3,     2,     1,     1,     1,     1,
        1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
-       1,     1,     1,     1,     2,     2,     3,     5,     3,     5,
-       0,     2,     0,     2,     3,     3,     5,     1,     1,     3,
-       5,     7,     1,     3,     1,     1,     1,     1,     1,     1,
-       5,     1,     3,     5,     0,     1,     3,     1,     1,     1,
-       2,     3,     1,     1,     2,     1,     2,     3,     3,     1,
-       1,     1,     0,     3,     1,     3,     3,     5,     2,     2,
-       4,     2,     2,     3,     1,     4,     6,     4,     5,     6,
-       4,     3,     1,     1,     1,     1,     2,     3,     5,     6,
-       6,     6,     6,     6,     7,     6,     6,     6,     6,     8,
-       8,     0,     2,     2,     2,     1,     3,     1,     4,     4,
-       3,     6,     4,     4,     6,     3,     1,     3,     0,     3,
-       3,     3,     3,     3,     3,     3,     3,     3,     3,     5,
-       3,     0,     1,     0,     1,     1,     1,     1,     2,     1,
-       2,     1,     2,     2,     3,     0,     1,     2,     1,     2,
-       1,     2,     2,     0,     2,     4,     1,     4,     5,     1,
-       4,     4,     5,     0,     1,     1,     1,     0,     1,     3,
-       3,     2,     1,     1,     1,     1,     1,     1,     1,     1,
        1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
        1,     1,     1,     1,     1,     0,     2,     4,     4,     0,
        2,     0,     2,     2,     1,     1,     3,     2,     3,     4,
@@ -1324,9 +1330,7 @@ static const yytype_uint8 yyr2[] =
        2,     1,     3,     2,     4,     3,     5,     1,     1,     1,
        1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
        1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
-       1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
-       1,     1,     1,     1,     1,     1,     1,     1,     1,     1,
-       1,     1,     1
+       1,     1,     1,     1,     1,     1
 };
 
 /* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
@@ -1334,532 +1338,486 @@ static const yytype_uint8 yyr2[] =
    means the default is an error.  */
 static const yytype_uint16 yydefact[] =
 {
-       0,     3,   237,   241,   245,   239,   248,   250,   372,     0,
-       0,    52,    48,    49,    50,    51,    76,    77,    78,    79,
-      81,     0,     0,     0,   253,   253,   253,   253,   253,   253,
-     201,    80,    82,    83,   374,     0,     0,   132,     0,   386,
-      86,    87,    88,     0,     0,   134,   135,   136,   137,   138,
-     139,     0,   310,   318,   312,   299,   327,   299,   299,   333,
-     301,   340,   342,   295,   347,   299,   354,     0,   128,   127,
-     109,   122,   122,   108,     0,    96,     0,     0,     0,     0,
-     364,     0,     0,     0,     9,     0,     2,     4,     0,    12,
-      14,    20,    34,    45,     0,     0,    35,    46,     0,    84,
-     100,   101,   102,    23,   105,   112,   113,   110,   111,   107,
-     106,   103,   104,    27,    28,    29,    30,    31,    32,    33,
-      15,    17,    18,    19,    36,    16,     0,   185,    91,     0,
-     267,     0,     0,     0,    22,    24,   272,   273,   274,   276,
-     275,   277,   278,   279,   280,   281,   282,   283,   284,   285,
-     286,   287,   288,   289,   290,   291,   292,   293,   294,    21,
-      25,    26,    37,    93,   246,   243,     0,   271,     0,     0,
-      98,     0,     0,     0,     0,   172,   174,   438,   439,   440,
-     399,   397,   400,   401,   437,   398,   403,   402,   406,   405,
-     404,   441,   420,   421,   422,   423,   425,   426,   427,   428,
-     429,   430,   431,   432,   433,   435,   434,   436,   407,   408,
-     409,   410,   411,   412,   413,   414,   415,   416,   417,   418,
-     424,   419,     0,   442,   141,    53,     0,    54,    47,     0,
-       0,    70,     0,     0,     0,     0,   259,   256,   238,     0,
-     253,   240,   242,   245,   249,   251,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,   374,
-       0,   378,     0,     0,     0,   384,   385,   304,   305,   303,
-     299,   299,   299,   317,     0,     0,   311,   299,     0,   307,
-     328,   299,   329,   331,   334,   335,   332,     0,   339,   301,
-     337,   341,   343,   345,     0,   344,   348,   346,   299,   351,
-     355,   353,   357,   358,   359,     0,     0,     0,   120,   120,
-     114,     0,     0,     0,     0,     0,   365,   368,   369,     0,
-       0,    10,     1,     5,     6,     7,   237,     0,    56,    68,
-      67,    72,    62,    57,    58,    60,    59,    63,    61,     0,
-      73,    39,    40,    43,    41,    42,    44,    85,   115,    13,
-     186,     0,    89,    92,   153,   155,   161,   169,   160,   159,
-     387,   391,   268,     0,   387,   168,   171,     0,    95,   247,
-     122,   373,   269,   270,    99,     0,     0,     0,     0,     0,
-       0,   144,     0,    55,    74,    69,    71,    75,     0,   263,
-       0,     0,   252,   254,   244,     0,     0,     0,     0,     0,
+       0,     3,   241,   245,   249,   243,   252,   254,   382,     0,
+       0,    53,    49,    50,    51,    52,    77,    78,    79,    80,
+      82,     0,     0,     0,   257,   257,   257,   257,   257,   257,
+     203,    81,    83,    84,   384,     0,     0,   133,     0,   396,
+      87,    88,    89,     0,     0,   135,   136,   137,   138,   139,
+     140,     0,   320,   328,   322,   309,   337,   309,   309,   343,
+     311,   350,   352,   305,   357,   309,   364,     0,   127,   131,
+     126,   108,   121,   121,   107,     0,    97,     0,     0,     0,
+       0,   374,     0,     0,     0,   299,   300,   301,   302,   303,
+     304,     9,     0,     2,     4,     0,    12,    14,    20,    34,
+      46,     0,     0,    35,    47,     0,    85,    99,   100,    23,
+     103,   111,   112,   109,   110,   106,   104,   105,   101,   102,
+      27,    28,    29,    30,    31,    32,    33,    15,    17,    18,
+      19,    36,    16,     0,   186,    92,     0,   271,     0,     0,
+       0,    22,    24,    37,   276,   277,   278,   280,   279,   281,
+     282,   283,   284,   285,   286,   287,   288,   289,   290,   291,
+     292,   293,   294,   295,   296,   297,   298,    21,    25,    26,
+      38,    94,   250,   247,     0,   275,     0,     0,     0,     0,
+       0,     0,   173,   175,   431,   432,   433,   409,   407,   410,
+     411,   408,   413,   412,   416,   415,   414,   434,   417,   418,
+     419,   420,   421,   422,   423,   424,   425,   426,   427,   428,
+     430,   429,     0,   435,   142,    54,     0,    55,    48,     0,
+       0,    71,     0,     0,     0,     0,   263,   260,   242,     0,
+     257,   244,   246,   249,   253,   255,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-     218,     0,     0,   231,   231,     0,     0,     0,   187,     0,
-       0,   205,   202,    11,     0,     0,   375,   379,   380,   376,
-     377,   133,   295,   299,   319,   299,   299,   323,   299,   321,
-     313,   315,     0,   316,   299,   308,   300,   330,   336,   302,
-     338,   296,     0,   352,   356,   129,     0,   123,     0,   124,
-     125,    97,   116,   118,     0,   363,   366,   367,   370,   371,
-       8,    66,    64,     0,   156,     0,     0,     0,    38,   154,
-       0,   390,     0,     0,   393,     0,   162,     0,   120,   182,
-     184,   183,   181,     0,     0,     0,     0,     0,     0,   173,
-     152,   147,   149,   148,     0,     0,   145,   142,     0,   264,
-     265,   266,     0,     0,     0,     0,   233,   235,   236,   218,
-     218,   218,   218,   233,     0,     0,     0,     0,     0,     0,
-       0,   231,   231,     0,     0,   218,   218,   218,   232,   218,
-       0,     0,   218,   203,   204,   382,     0,     0,   306,   320,
-     324,   299,   325,   322,   314,   309,     0,     0,   349,     0,
-       0,   121,     0,     0,   360,     0,   157,   158,    90,   388,
-       0,   395,   392,   170,     0,     0,    94,   126,   177,   180,
-     175,     0,     0,     0,   150,     0,     0,   140,     0,   255,
-     257,     0,     0,   261,   260,   218,   234,     0,     0,     0,
-       0,   230,     0,   220,   221,   223,   224,   227,   228,   225,
-     226,   222,   188,     0,     0,     0,     0,     0,     0,     0,
-       0,   383,   381,   326,   298,   297,     0,     0,   130,   117,
-     119,   361,   362,    65,     0,     0,   394,   164,     0,   167,
-     178,     0,     0,   151,   146,   143,   258,   262,     0,   191,
-     189,   192,   193,   233,   219,   197,   198,   195,   196,     0,
-       0,     0,     0,     0,   207,     0,     0,   190,   350,     0,
-     389,   396,     0,   163,   176,   179,   194,   229,     0,     0,
-       0,     0,     0,     0,   231,     0,   131,   165,     0,     0,
-       0,   210,     0,     0,   216,   199,   206,     0,   200,   208,
-     209,     0,     0,   212,     0,   213,   231,     0,   217,   215,
-       0,   211,   214
+     384,     0,   388,     0,     0,     0,   394,   395,   314,   315,
+     313,   309,   309,   309,   327,     0,     0,   321,   309,     0,
+     317,   338,   309,   339,   341,   344,   345,   342,     0,   349,
+     311,   347,   351,   353,   355,     0,   354,   358,   356,   309,
+     361,   365,   363,   367,   368,   369,     0,     0,     0,     0,
+     119,   119,   113,     0,     0,     0,     0,     0,   375,   378,
+     379,     0,     0,    10,     1,     5,     6,     7,   241,     0,
+      57,    69,    68,    73,    63,    58,    59,    61,    60,    64,
+      62,     0,    74,    40,    41,    44,    42,    43,    45,    86,
+     114,    13,   187,     0,    90,    93,   154,   156,   162,   170,
+     161,   160,   397,   401,   272,     0,   397,   169,   172,     0,
+      96,   251,   121,   383,   273,   274,     0,     0,     0,     0,
+       0,     0,   145,     0,    56,    75,    70,    72,    76,     0,
+     267,     0,     0,   256,   258,   248,     0,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,   221,     0,     0,   235,   235,     0,     0,     0,
+       0,   188,     0,     0,   207,   204,    11,     0,     0,   385,
+     389,   390,   386,   387,   134,   305,   309,   329,   309,   309,
+     333,   309,   331,   323,   325,     0,   326,   309,   318,   310,
+     340,   346,   312,   348,   306,     0,   362,   366,   128,     0,
+     132,   122,     0,   123,   124,    98,   115,   117,     0,   373,
+     376,   377,   380,   381,     8,    67,    65,     0,   157,     0,
+       0,     0,    39,   155,     0,   400,     0,     0,   403,     0,
+     163,     0,   119,   183,   185,   184,   182,     0,     0,     0,
+       0,     0,     0,   174,   153,   148,   150,   149,     0,     0,
+     146,   143,     0,   268,   269,   270,     0,     0,     0,     0,
+     237,   239,   240,   221,   221,   221,   221,   237,     0,     0,
+       0,     0,     0,     0,     0,   235,   235,     0,     0,     0,
+     221,   221,   221,   236,   221,   221,     0,     0,   221,   205,
+     206,   392,     0,     0,   316,   330,   334,   309,   335,   332,
+     324,   319,     0,     0,   359,     0,     0,   120,     0,     0,
+     370,     0,   158,   159,    91,   398,     0,   405,   402,   171,
+       0,     0,    95,   125,   178,   181,   176,     0,     0,     0,
+     151,     0,     0,   141,     0,   259,   261,     0,     0,   265,
+     264,   221,   238,     0,     0,     0,     0,   234,     0,   223,
+     224,   226,   227,   230,   231,   228,   229,   232,   225,   189,
+       0,     0,     0,     0,     0,     0,     0,     0,     0,   393,
+     391,   336,   308,   307,     0,     0,   129,   116,   118,   371,
+     372,    66,     0,     0,   404,   165,     0,   168,   179,     0,
+       0,   152,   147,   144,   262,   266,     0,   192,   190,   193,
+     194,   237,   222,   198,   199,   196,   197,   202,     0,     0,
+       0,     0,     0,     0,   209,     0,     0,   191,   360,     0,
+     399,   406,     0,   164,   177,   180,   195,   233,     0,     0,
+       0,     0,     0,     0,     0,   235,     0,   130,   166,     0,
+       0,     0,   212,   214,     0,     0,   219,   200,   208,     0,
+     201,   210,   211,     0,     0,   215,     0,   216,   235,     0,
+     220,   218,     0,   213,   217
 };
 
 /* YYDEFGOTO[NTERM-NUM].  */
 static const yytype_int16 yydefgoto[] =
 {
-      -1,    85,    86,    87,    88,    89,   356,    91,    92,    93,
-     228,   329,   340,   330,   331,    94,    95,    96,    97,    98,
-      99,   478,   352,   100,   101,   102,   103,   104,   105,   106,
-     459,   308,   107,   108,   109,   110,   111,   112,   113,   114,
-     115,   116,   117,   118,   119,   222,   505,   506,   353,   354,
-     355,   357,   358,   575,   638,   120,   121,   122,   123,   124,
-     125,   175,   176,   492,   126,   127,   258,   422,   663,   664,
-     666,   693,   694,   534,   410,   537,   595,   538,   128,   129,
-     130,   131,   165,   132,   133,   238,   239,   240,   512,   363,
-     134,   135,   295,   279,   290,   136,   269,   137,   138,   139,
-     276,   140,   273,   141,   142,   143,   144,   286,   145,   146,
-     147,   148,   149,   297,   150,   151,   301,   152,   153,   154,
-     155,   156,   157,   158,   169,   159,   426,   427,   428,   160,
-     161,   162,   481,   359,   360,   223,   361
+      -1,    92,    93,    94,    95,    96,   348,    98,    99,   100,
+     218,   321,   332,   322,   323,   101,   102,   103,   104,   105,
+     106,   472,   344,   107,   108,   109,   110,   111,   112,   453,
+     300,   113,   114,   115,   116,   117,   118,   119,   120,   121,
+     122,   123,   124,   125,   126,   212,   499,   500,   345,   346,
+     347,   349,   350,   571,   636,   127,   128,   129,   130,   131,
+     132,   182,   183,   486,   133,   134,   249,   415,   663,   664,
+     666,   695,   696,   529,   402,   532,   591,   533,   135,   136,
+     137,   138,   173,   139,   140,   228,   229,   230,   506,   355,
+     141,   142,   143,   286,   270,   281,   144,   260,   145,   146,
+     147,   267,   148,   264,   149,   150,   151,   152,   277,   153,
+     154,   155,   156,   157,   288,   158,   159,   292,   160,   161,
+     162,   163,   164,   165,   166,   177,   167,   419,   420,   421,
+     168,   169,   170,   475,   351,   352,   213,   353
 };
 
 /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
    STATE-NUM.  */
-#define YYPACT_NINF -485
+#define YYPACT_NINF -479
 static const yytype_int16 yypact[] =
 {
-     392,  -485,    32,  -485,    42,  -485,  -485,  -485,    49,   -12,
-    1337,    63,    91,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  1337,  1337,   172,    31,    31,    31,    31,    31,    31,
-     145,  -485,  -485,  -485,   830,   151,   161,  -485,   102,  -485,
-    -485,  -485,  -485,   138,   210,  -485,  -485,  -485,  -485,  -485,
-    -485,   124,  -485,   105,   -33,   169,   190,   -45,   176,    -5,
-      57,   231,   174,    34,   203,    35,   204,    56,    50,  -485,
-    -485,   291,   291,  -485,  1337,   251,   296,   297,   313,   320,
-    -485,   211,   242,   -65,   279,   330,   559,  -485,    17,  -485,
-    -485,  -485,  -485,  -485,    23,   159,  -485,  -485,   230,  1444,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,   995,   292,   158,   680,
-     265,  1337,   680,  1337,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,    -8,   283,  -485,   316,  -485,   156,   193,
-     158,   164,   254,   255,   -31,  -485,   168,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,   167,  -485,   166,  -485,   280,  -485,  -485,  1337,
-     318,   315,  1337,   175,   177,   178,   179,  -485,  -485,   308,
-      31,  -485,  -485,    42,  -485,  -485,   272,   185,   186,   188,
-     189,   171,   191,   192,   194,   195,   201,   196,    68,  -485,
-     202,   244,   276,   282,   232,  -485,  -485,  -485,   247,  -485,
-      26,   -36,    30,  -485,   -32,   286,  -485,   150,   289,  -485,
-    -485,   176,  -485,  -485,  -485,   290,  -485,   293,  -485,   243,
-    -485,  -485,  -485,  -485,   266,  -485,   208,  -485,   176,  -485,
-     267,  -485,  -485,  -485,  -485,   300,   233,   301,   256,   256,
-    -485,  1337,   305,   306,   307,   309,   278,   294,  -485,   295,
-     302,  -485,  -485,  -485,  -485,   346,  -485,   328,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,   335,
-     250,  -485,  -485,  -485,  -485,  -485,  -485,    12,  -485,  -485,
-    -485,     9,   404,   158,  -485,  -485,  -485,  -485,  -485,  -485,
-     298,  1112,  -485,   406,   298,  -485,  -485,   407,    -4,  -485,
-     291,  -485,  -485,  -485,   158,    33,   261,   262,   268,   106,
-     -20,    14,  1337,  -485,  -485,  -485,  -485,  -485,   321,   223,
-     354,   -14,  -485,  -485,  -485,   269,    39,    39,    39,    39,
-     -83,   270,   277,   281,   284,   285,   287,   288,   317,   319,
-    -485,    39,    39,    39,    39,   322,   323,    39,  -485,   355,
-     356,  -485,  -485,  -485,   390,   391,  -485,   303,  -485,  -485,
-    -485,  -485,   331,   176,  -485,   176,    60,  -485,   176,  -485,
-    -485,  -485,   369,  -485,   176,  -485,  -485,  -485,  -485,  -485,
-    -485,   -52,   339,  -485,  -485,   388,   324,  -485,   378,  -485,
-    -485,  -485,   437,   438,   325,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,   299,  -485,   314,   139,   680,  -485,  -485,
-     -35,  -485,  1337,  1337,  -485,   680,   -13,   680,   256,  -485,
-    -485,  -485,  -485,    33,    33,    33,   326,   381,   382,  -485,
-    -485,  -485,  -485,  -485,   -11,   -27,  -485,   304,   327,  -485,
-    -485,  -485,   329,   383,   -50,   332,    39,  -485,  -485,  -485,
-    -485,  -485,  -485,    39,   384,    39,    39,    39,    39,    39,
-      39,    39,    39,    39,   -17,  -485,  -485,  -485,  -485,  -485,
-     333,   334,  -485,  -485,  -485,  -485,   429,   244,  -485,  -485,
-    -485,   176,  -485,  -485,  -485,  -485,   353,   377,   336,   347,
-     417,  -485,   419,   421,    -2,   422,  -485,  -485,  -485,  -485,
-     428,  -485,  1230,  -485,   433,    80,  -485,  -485,  -485,  -485,
-    -485,    33,   340,   345,  -485,   435,    14,  -485,  1337,  -485,
-    -485,   348,   349,  -485,  -485,  -485,  -485,   -16,    -7,    -1,
-       0,  -485,   357,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,   171,     2,     3,     5,     6,    86,   453,
-       7,  -485,  -485,  -485,  -485,  -485,   447,   361,  -485,  -485,
-    -485,  -485,  -485,  -485,   363,  1337,  -485,  -485,   123,  -485,
-    -485,    33,    33,  -485,  -485,  -485,  -485,  -485,     8,  -485,
-    -485,  -485,  -485,    39,  -485,  -485,  -485,  -485,  -485,   367,
-     368,   371,   405,   344,   413,   412,   365,  -485,  -485,   494,
-    -485,  -485,   505,  -485,  -485,  -485,  -485,  -485,    39,    39,
-     -70,   513,   560,    86,    39,   561,  -485,  -485,   424,   427,
-     430,  -485,   431,   432,   434,  -485,  -485,    18,  -485,  -485,
-    -485,    39,    39,  -485,   513,  -485,    39,   441,  -485,  -485,
-     442,  -485,  -485
+     418,  -479,    36,  -479,   -62,  -479,  -479,  -479,    47,   -14,
+    1104,    50,    68,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  1104,  1104,   116,     8,     8,     8,     8,     8,     8,
+     300,  -479,  -479,  -479,   770,   109,    51,  -479,    29,  -479,
+    -479,  -479,  -479,   137,   157,  -479,  -479,  -479,  -479,  -479,
+    -479,   129,  -479,   221,    54,    71,   210,   -54,   124,    -2,
+     -36,   182,   172,    92,   217,   -15,   224,   148,    49,   297,
+    -479,  -479,   319,   319,  -479,  1104,   285,   328,   330,   348,
+     355,  -479,   254,   291,   -40,  -479,  -479,  -479,  -479,  -479,
+    -479,   327,   379,   595,  -479,    -8,  -479,  -479,  -479,  -479,
+    -479,    11,   200,  -479,  -479,   360,  1212,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,   944,   341,   201,    95,   316,  1104,    95,
+    1104,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,     0,   334,  -479,   367,  -479,   199,   218,   208,   305,
+     308,   -11,  -479,   230,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,   216,  -479,   227,  -479,   350,  -479,  -479,  1104,
+     388,   385,  1104,   234,   235,   237,   238,  -479,  -479,   383,
+       8,  -479,  -479,   -62,  -479,  -479,   353,   256,   257,   263,
+     264,   212,   267,   275,   277,   278,   279,   198,   280,    46,
+    -479,   286,    76,   380,   384,   345,  -479,  -479,  -479,   351,
+    -479,   -25,   -44,    38,  -479,   -16,   386,  -479,   207,   392,
+    -479,  -479,   124,  -479,  -479,  -479,   393,  -479,   394,  -479,
+     346,  -479,  -479,  -479,  -479,   361,  -479,   301,  -479,   124,
+    -479,   363,  -479,  -479,  -479,  -479,   400,   329,   402,   403,
+     354,   354,  -479,  1104,   405,   406,   407,   409,   376,   377,
+    -479,   378,   397,  -479,  -479,  -479,  -479,   447,  -479,   414,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,   417,   325,  -479,  -479,  -479,  -479,  -479,  -479,    13,
+    -479,  -479,  -479,    10,   489,   201,  -479,  -479,  -479,  -479,
+    -479,  -479,   381,   206,  -479,   490,   381,  -479,  -479,   491,
+       3,  -479,   319,  -479,  -479,  -479,   120,   337,   338,   340,
+     147,   -14,     2,  1104,  -479,  -479,  -479,  -479,  -479,   408,
+     284,   439,    -7,  -479,  -479,  -479,   342,   136,   136,   136,
+     136,   -27,   343,   347,   349,   352,   356,   357,   358,   359,
+     364,   365,  -479,   136,   136,   136,   136,   136,   366,   368,
+     136,  -479,   443,   444,  -479,  -479,  -479,   470,   471,  -479,
+     370,  -479,  -479,  -479,  -479,   410,   124,  -479,   124,    41,
+    -479,   124,  -479,  -479,  -479,   451,  -479,   124,  -479,  -479,
+    -479,  -479,  -479,  -479,   -69,   427,  -479,  -479,   464,   387,
+    -479,  -479,   468,  -479,  -479,  -479,   532,   535,   389,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,   390,  -479,   382,
+     169,    95,  -479,  -479,   -29,  -479,  1104,  1104,  -479,    95,
+      -9,    95,   354,  -479,  -479,  -479,  -479,   120,   120,   120,
+     416,   506,   515,  -479,  -479,  -479,  -479,  -479,     7,   110,
+    -479,   429,   431,  -479,  -479,  -479,   432,   538,   -53,   442,
+     136,  -479,  -479,  -479,  -479,  -479,  -479,   136,   550,   136,
+     136,   136,   136,   136,   136,   136,   136,   136,   136,   -13,
+    -479,  -479,  -479,  -479,  -479,  -479,   450,   452,  -479,  -479,
+    -479,  -479,   574,    76,  -479,  -479,  -479,   124,  -479,  -479,
+    -479,  -479,   521,   522,   460,   486,   559,  -479,   560,   561,
+      26,   562,  -479,  -479,  -479,  -479,   563,  -479,  1070,  -479,
+     569,    70,  -479,  -479,  -479,  -479,  -479,   120,   472,   473,
+    -479,   572,     2,  -479,  1104,  -479,  -479,   474,   475,  -479,
+    -479,  -479,  -479,    -5,    -4,    -3,    -1,  -479,   479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+     212,     9,    15,    17,    18,    19,   140,   589,    20,  -479,
+    -479,  -479,  -479,  -479,   578,   481,  -479,  -479,  -479,  -479,
+    -479,  -479,   480,  1104,  -479,  -479,   111,  -479,  -479,   120,
+     120,  -479,  -479,  -479,  -479,  -479,    21,  -479,  -479,  -479,
+    -479,   136,  -479,  -479,  -479,  -479,  -479,  -479,   482,   483,
+     484,   485,   487,   488,   492,   495,   496,  -479,  -479,   585,
+    -479,  -479,   587,  -479,  -479,  -479,  -479,  -479,   136,   136,
+     -59,   508,   588,   633,   140,   136,   652,  -479,  -479,   510,
+     511,   514,  -479,  -479,   516,   513,   518,  -479,  -479,    42,
+    -479,  -479,  -479,   136,   136,  -479,   588,  -479,   136,   517,
+    -479,  -479,   519,  -479,  -479
 };
 
 /* YYPGOTO[NTERM-NUM].  */
 static const yytype_int16 yypgoto[] =
 {
-    -485,  -485,  -485,   520,   575,   484,     4,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,   448,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -296,   -62,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,   525,    55,  -485,    36,  -148,  -302,
-    -485,  -129,    45,  -485,  -485,   126,   147,   163,   187,   200,
-    -485,   241,  -485,  -477,   496,  -485,  -485,  -485,   -57,  -485,
-    -485,   -77,  -485,  -309,    15,  -387,  -484,  -391,  -485,  -485,
-    -485,  -485,   386,  -485,  -485,   264,   393,  -485,  -485,  -485,
-    -485,  -485,   198,   -56,   342,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,
-    -485,  -485,  -485,  -485,  -485,  -485,  -485,  -485,    85,  -485,
-    -485,   540,   271,  -485,   173,  -485,   -10
+    -479,  -479,  -479,   607,   668,   571,     1,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,   534,  -479,  -479,  -479,  -479,  -479,  -479,  -287,
+     -60,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,   605,   632,  -479,   126,  -146,  -281,
+    -479,  -134,   138,  -479,  -479,   128,   131,   141,   151,   164,
+    -479,   339,  -479,  -455,   577,  -479,  -479,  -479,    28,  -479,
+    -479,    12,  -479,  -227,   103,  -402,  -478,  -381,  -479,  -479,
+    -479,  -479,   494,  -479,  -479,   253,   493,  -479,  -479,  -479,
+    -479,  -479,  -479,   290,   -55,   436,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,
+    -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,  -479,   174,
+    -479,  -479,   621,   369,  -479,    97,  -479,   -10
 };
 
 /* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
    positive, shift that token.  If negative, reduce the rule which
    number is the opposite.  If zero, do what YYDEFACT says.
    If YYTABLE_NINF, syntax error.  */
-#define YYTABLE_NINF -442
+#define YYTABLE_NINF -435
 static const yytype_int16 yytable[] =
 {
-     224,   282,   283,   365,    90,   519,   520,   521,   522,   299,
-     309,   230,   231,   460,   326,   368,   578,   579,   580,   -91,
-     535,   536,   374,   -92,   612,   649,   542,   539,   326,     3,
-       4,     5,     6,     7,   650,   592,    10,  -166,    90,   601,
-     651,   652,    24,   655,   656,   690,   657,   658,   667,   676,
-     569,   479,   318,   440,   378,   319,    24,    25,    26,    27,
-      28,    29,  -441,   500,   224,   171,   479,   324,   166,   170,
-     556,   514,   479,   171,   584,   233,   234,   305,   172,   173,
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-       0,     0,     0,     0,     0,   191,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,   192,   193,   194,   195,   196,   197,   198,   199,   200,
-     201,   202,   203,   204,   205,   206,   207,     0,     0,   208,
-     209,     0,   210,     0,     0,     0,   211,   212,     0,   213,
-       0,   214,   215,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,   216,     0,     0,     0,   217,     0,     0,
-       0,   218,   219,     0,   220,     0,     0,     0,     0,     0,
-     177,   178,   179,   180,   181,   182,     0,     0,     0,   183,
-     221,   184,   185,   186,   187,   188,   189,   190,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,   191,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,   192,   193,
-     194,   195,   196,   197,   198,   199,   200,   201,   202,   203,
-     204,   205,   206,   207,     0,     0,   208,   209,     0,   210,
-       0,     0,     0,   211,   212,     0,   213,     0,   214,   215,
+       0,     0,   198,   199,     0,   200,     0,     0,     0,   201,
+     202,     0,   203,     0,   204,   205,     0,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,   206,     0,     0,     0,
+     207,     0,     0,     0,   208,   209,     0,     0,   210,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-     216,     0,     0,     0,   217,     0,     0,     0,   218,   219,
-       0,   220,     0,     0,     0,     0,     0,   177,   178,   179,
-     180,   181,   182,     0,     0,     0,   183,   221,   184,   185,
-     186,   187,   188,   189,   190,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,   347,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,   192,   193,   194,   195,   196,
-     197,   198,   199,   200,   201,   202,   203,   204,   205,   206,
-     207,     0,     0,   208,   209,     0,   210,     0,     0,     0,
-     211,   212,     0,   213,     0,   214,   215,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,   216,     0,     0,
-       0,   217,     0,     0,     0,   218,   219,     0,   220,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,   221
+       0,     0,     0,     0,   211
 };
 
 static const yytype_int16 yycheck[] =
 {
-      10,    57,    58,   132,     0,   396,   397,   398,   399,    65,
-      72,    21,    22,   309,     5,   163,   493,   494,   495,    27,
-     411,   412,   170,    27,    41,    41,   417,   414,     5,     6,
-       7,     8,     9,    10,    41,    85,    13,    50,    34,   523,
-      41,    41,    33,    41,    41,   115,    41,    41,    41,    41,
-      85,   353,   117,    85,    85,   120,    33,    34,    35,    36,
-      37,    38,    50,    49,    74,    85,   368,    50,    19,    81,
-     122,    85,   374,    85,    85,    44,    45,    27,    98,    99,
-      85,   117,    19,    85,    21,     5,    98,    99,   133,    99,
-      86,   174,   128,   126,   177,    64,   128,   133,    94,    85,
-     133,   133,    98,   117,   581,   170,   176,   152,    85,    41,
-      42,    43,    80,    33,   100,   117,    85,    68,    85,    70,
-      29,   173,    72,   128,    85,   516,   176,    64,    89,    74,
-     126,   117,   523,   100,   525,   526,   527,   528,   529,   530,
-     175,   172,   533,   117,   531,   532,   173,   117,   117,   176,
-     117,   117,   172,    85,    99,   121,   173,   173,   171,   133,
-     172,   172,   175,   133,   641,   642,   173,   175,   133,   653,
-     128,   175,   173,   173,   476,   173,   173,   117,   173,   173,
-     173,   173,   147,   171,   175,   176,   172,   101,   171,   177,
-     133,    85,   488,   133,   176,   172,   139,   140,   180,   113,
-     114,    29,   116,   351,    98,    99,   150,   151,   152,    58,
-     519,   520,   521,   522,   270,   271,   272,    56,    57,   229,
-      94,   277,   232,    85,    98,   281,   535,   536,   537,    84,
-     539,   126,   127,   542,   129,     5,     6,     7,     8,     9,
-      10,    94,   298,   119,   120,    98,   101,   102,   103,   104,
-     105,   106,   107,   108,   109,   110,    85,    94,   113,    66,
-      67,    98,   653,    33,    34,    35,    36,    37,    38,    46,
-      47,    48,   101,   102,   103,   104,   174,   106,   107,   108,
-     109,    94,   132,   133,   113,    98,   595,   678,   679,    25,
-      26,    27,    28,    29,    94,    85,   173,   684,    98,   176,
-     131,   311,   133,    59,   131,    61,   133,   117,   370,   133,
-     701,   702,   111,   112,   175,   176,    85,   143,    27,   706,
-     117,   117,    71,    27,    27,    12,     6,    85,   117,    50,
-       0,   172,    40,   175,    69,    52,    20,   181,   174,    85,
-      85,   173,   175,   177,    64,    27,    31,    39,   477,   117,
-     175,   361,   175,   175,   175,   351,   485,    85,   487,   174,
-     174,    85,   174,   174,   117,   174,   174,    85,   174,   174,
-     174,    85,   382,   171,    85,    85,   133,   433,    85,   435,
-     436,   173,   438,   117,   117,    85,    85,   154,   444,   133,
-      85,    85,    85,     1,    85,   117,    50,     5,     6,     7,
-       8,     9,    10,    11,    12,    13,    14,    15,    16,    17,
-      18,   117,   117,    85,    22,    23,    24,    25,    26,   117,
-      85,    29,    30,   173,    32,    33,    34,    35,    36,    37,
-      38,    27,    40,    27,    27,   174,   174,   139,   117,    85,
-      85,    85,   174,   174,   174,    53,    54,    55,    56,    57,
-      60,   174,   121,    62,    85,   174,   117,    65,   174,   174,
-      72,   174,   174,    85,    27,    27,    85,    85,    85,    85,
-     117,   172,   482,   483,    82,    83,   173,    85,    86,    87,
-      88,   177,    90,    91,    92,    93,    94,    95,    96,    97,
-     176,   174,    63,   174,   117,   551,   174,   174,   174,   174,
-     174,   154,    85,   176,    85,   176,    85,    85,   176,   173,
-     118,   178,   178,    85,   174,   123,   124,   125,    85,   174,
-      85,    68,   130,   179,   176,   176,   134,   135,   136,   137,
-     138,   174,    85,   141,   142,   174,   144,   145,   146,   176,
-     148,   149,   175,   175,   179,   153,   175,   155,   156,   157,
-     158,   159,   160,   161,   162,   163,   164,   165,   166,   167,
-     168,   169,   572,   171,     5,     6,     7,     8,     9,    10,
-      11,    12,    13,    14,    15,    16,    17,    18,   588,    85,
-     175,    22,    23,    24,    25,    26,   173,   175,    29,    30,
-      85,    32,    33,    34,    35,    36,    37,    38,    85,    40,
-     176,    41,    41,   176,   174,   174,    86,   173,   176,    34,
-     126,   163,    53,    54,    55,    56,    57,   176,   176,    94,
-     575,   380,   586,   127,    65,   635,   683,   704,   613,   243,
-     432,   289,   547,   240,    94,   364,    -1,    -1,    -1,    -1,
-      -1,    82,    83,    -1,    85,    86,    87,    88,    -1,    90,
-      91,    92,    93,    94,    95,    96,    97,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,   118,    -1,    -1,
-      -1,    -1,   123,   124,   125,     5,    -1,    -1,    -1,   130,
-      -1,    -1,    -1,   134,   135,   136,   137,   138,    -1,    -1,
-     141,   142,    -1,   144,   145,   146,    -1,   148,   149,    -1,
-      -1,    -1,   153,    33,   155,   156,   157,   158,   159,   160,
-     161,   162,   163,   164,   165,   166,   167,   168,   169,    -1,
-     171,    -1,    -1,    53,    54,    55,    56,    57,    58,    -1,
-      -1,    -1,    62,    -1,    64,    65,    66,    67,    68,    69,
-      70,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    85,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,   101,   102,   103,   104,   105,   106,   107,   108,   109,
-     110,   111,   112,   113,   114,   115,   116,    -1,    -1,   119,
-     120,    -1,   122,    -1,    -1,    -1,   126,   127,    -1,   129,
-      -1,   131,   132,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,   143,    -1,    -1,    -1,   147,    -1,    -1,
-      -1,   151,   152,    -1,   154,     5,     6,     7,     8,     9,
+      10,     0,    57,    58,   406,   139,   387,   388,   389,   390,
+      65,    21,    22,    73,   301,     5,     5,     6,     7,     8,
+       9,    10,   403,   404,    13,   171,   407,    27,    41,   410,
+      27,    84,   487,   488,   489,    34,    41,    41,    41,   517,
+      41,    50,    50,    33,    33,    34,    35,    36,    37,    38,
+      41,    49,    44,    45,   123,    84,    41,   116,    41,    41,
+      41,    41,    41,    50,   345,    75,    19,   129,    84,    19,
+      84,    21,    64,    84,   118,     5,    27,    84,   118,   360,
+     134,   121,    84,    97,    98,   129,    84,    41,    42,    43,
+     134,    84,    84,   118,    93,    84,   106,    29,   134,   153,
+       5,    99,   101,    33,   140,   141,   105,    56,    57,   134,
+      84,   118,   181,   129,    64,    68,    80,    70,   134,   134,
+     118,    72,   577,   525,   526,   184,   118,   129,    33,   510,
+      84,   184,   172,   148,   133,    59,   517,    61,   519,   520,
+     521,   522,   523,   524,   118,    29,   527,   528,    53,    54,
+      55,    56,    57,    58,   183,   182,   118,    62,   185,   118,
+      65,    66,    67,    68,    69,    70,   180,    58,   181,   180,
+     179,   179,   134,   651,   183,   134,   181,   181,   181,    84,
+     181,   127,   180,   183,   639,   640,   183,   180,   134,   470,
+     181,   180,   179,   183,   184,   482,   181,   343,   181,   181,
+     181,   181,   181,   132,    84,   134,   261,   262,   263,   219,
+     118,   182,   222,   268,   122,   120,   121,   272,   123,    99,
+      84,    84,   127,   128,    88,   130,   184,   132,   133,   101,
+     188,    84,   101,   105,   289,   138,   105,   140,   118,   144,
+     100,    84,   101,   148,    97,    98,   105,   152,   153,   120,
+     121,   156,   101,   113,   114,   115,   105,   117,   134,    53,
+      54,    55,    56,    57,    58,   101,    84,   172,    62,   105,
+     651,    65,    66,    67,    68,    69,    70,    71,    25,    26,
+      27,    28,    29,   685,    66,    67,   513,   514,   515,   516,
+      84,   181,   181,   303,   184,   184,    84,   678,   679,   151,
+     152,   153,   362,   530,   531,   532,   708,   534,   535,   111,
+     112,   538,   100,   101,   102,   103,   144,   105,   106,   107,
+     108,   109,   703,   704,    27,   113,   120,   121,   118,   123,
+      46,    47,    48,   127,   128,   118,   130,   471,   132,   133,
+     133,   134,   118,   353,   343,   479,    27,   481,   127,   128,
+     144,   130,   183,   184,   148,    27,    71,    27,   152,   153,
+      12,     6,   156,   373,   591,     5,     6,     7,     8,     9,
+      10,   426,   118,   428,   429,    84,   431,    50,   172,     0,
+     180,    40,   437,    83,   183,    69,    52,    20,   189,    84,
+     182,   185,    84,    33,    34,    35,    36,    37,    38,   183,
+     100,   101,   102,   103,   104,   105,   106,   107,   108,   109,
+     110,   181,   185,   113,    64,    27,    31,   183,   183,     1,
+     183,   183,    39,     5,     6,     7,     8,     9,    10,    11,
+      12,    13,    14,    15,    16,    17,    18,    84,   182,   182,
+      22,    23,    24,    25,    26,   182,   182,    29,    30,   182,
+      32,    33,    34,    35,    36,    37,    38,   182,    40,   182,
+     182,   182,   182,   118,    84,   179,   476,   477,    84,   118,
+      84,    53,    54,    55,    56,    57,    84,    84,    84,   118,
+     134,   118,   181,    65,    84,   156,    84,    84,   134,    84,
+      84,    84,   547,    84,   118,   118,   118,    50,    84,    81,
+      82,    84,    84,    85,    86,    87,   181,    89,    90,    91,
+      92,    93,    94,    95,    96,   118,    27,    27,    27,   182,
+     182,   140,   182,    84,   182,   182,   118,    84,    84,   182,
+      60,   182,   122,    62,   182,    84,    72,   119,   182,   182,
+     182,   182,   124,   125,   126,   118,   182,   182,   182,   131,
+     182,   181,    84,   135,   136,   137,   138,   139,   568,    27,
+     142,   143,    27,   145,   146,   147,   184,   149,   150,   182,
+     180,   182,   154,   155,   584,   157,   158,   159,   160,   161,
+     162,   163,   164,   165,   166,   167,   168,   169,   170,   171,
+      84,   173,   174,   175,   176,   177,   178,   179,   182,    84,
+       5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
+      15,    16,    17,    18,   185,   184,   184,    22,    23,    24,
+      25,    26,    84,   633,    29,    30,   184,    32,    33,    34,
+      35,    36,    37,    38,    84,    40,   186,    63,   186,   118,
+     118,   181,   156,    84,    84,    84,    84,    84,    53,    54,
+      55,    56,    57,    84,   182,   182,    84,    68,   184,   184,
+      65,   182,    84,   182,   184,   183,   183,   183,   183,    84,
+     183,    84,    84,   181,    41,   187,    81,    82,   183,    84,
+      85,    86,    87,   187,    89,    90,    91,    92,    93,    94,
+      95,    96,   184,    41,   184,   184,   182,   184,   182,   181,
+      93,   184,    34,   184,   133,   171,   101,    75,   582,   571,
+     371,   134,   684,   610,   119,   425,   280,   543,   706,   124,
+     125,   126,   101,   230,    -1,   356,   131,   233,    -1,    -1,
+     135,   136,   137,   138,   139,    -1,    -1,   142,   143,    -1,
+     145,   146,   147,    -1,   149,   150,    -1,    -1,    -1,   154,
+     155,    -1,   157,   158,   159,   160,   161,   162,   163,   164,
+     165,   166,   167,   168,   169,   170,   171,    -1,   173,   174,
+     175,   176,   177,   178,   179,     5,     6,     7,     8,     9,
       10,    11,    12,    13,    14,    15,    16,    17,    18,    -1,
-     170,    -1,    22,    23,    24,    25,    26,    -1,    -1,    29,
+      -1,    -1,    22,    23,    24,    25,    26,    -1,    -1,    29,
       30,    -1,    32,    33,    34,    35,    36,    37,    38,    -1,
       40,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
       -1,    -1,    -1,    53,    54,    55,    56,    57,    -1,    -1,
       -1,    -1,    -1,    -1,    -1,    65,    -1,    -1,    -1,    -1,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    82,    83,    -1,    85,    86,    87,    88,    -1,
-      90,    91,    92,    93,    94,    95,    96,    97,    -1,    -1,
+      -1,    81,    82,    -1,    84,    85,    86,    87,    -1,    89,
+      90,    91,    92,    93,    94,    95,    96,    -1,    -1,    -1,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,   118,    -1,
-      -1,    -1,    -1,   123,   124,   125,    -1,    -1,    -1,    -1,
-     130,    -1,    -1,    -1,   134,   135,   136,   137,   138,    -1,
-      -1,   141,   142,    -1,   144,   145,   146,    -1,   148,   149,
-      -1,    -1,    -1,   153,    -1,   155,   156,   157,   158,   159,
+      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,   119,
+      -1,    -1,    -1,    -1,   124,   125,   126,    -1,    -1,    -1,
+      -1,   131,    -1,    -1,    -1,   135,   136,   137,   138,   139,
+      -1,    -1,   142,   143,    -1,   145,   146,   147,    -1,   149,
+     150,    -1,    -1,    -1,   154,   155,    -1,   157,   158,   159,
      160,   161,   162,   163,   164,   165,   166,   167,   168,   169,
-       5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
-      15,    16,    17,    18,    -1,    -1,    -1,    22,    23,    24,
-      25,    26,    -1,    -1,    29,    30,    -1,    32,    33,    34,
-      35,    36,    37,    38,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    53,    54,
-      55,    56,    57,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      65,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    82,    83,    -1,
-      85,    86,    87,    88,    -1,    90,    91,    92,    93,    94,
-      95,    96,    97,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
+     170,   171,    -1,   173,   174,   175,   176,   177,   178,     5,
+       6,     7,     8,     9,    10,    11,    12,    13,    14,    15,
+      16,    17,    18,    -1,    -1,    -1,    22,    23,    24,    25,
+      26,    -1,    -1,    29,    30,    -1,    32,    33,    34,    35,
+      36,    37,    38,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
+      -1,    -1,    -1,    -1,    -1,    -1,    -1,    53,    54,    55,
+      56,    57,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    65,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,   118,    -1,    -1,    -1,    -1,   123,   124,
-     125,    -1,    -1,    -1,    -1,   130,    -1,    -1,    -1,   134,
-     135,   136,   137,   138,    -1,    -1,   141,   142,    -1,   144,
-     145,   146,    -1,   148,   149,    -1,    -1,    -1,   153,    -1,
-     155,   156,   157,   158,   159,   160,   161,   162,   163,   164,
-     165,   166,   167,   168,   169,    53,    54,    55,    56,    57,
-      58,    -1,    -1,    -1,    62,    -1,    64,    65,    66,    67,
-      68,    69,    70,    71,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    85,    -1,    -1,
+      -1,    -1,    -1,    -1,    -1,    81,    82,    -1,    84,    85,
+      86,    87,    -1,    89,    90,    91,    92,    93,    94,    95,
+      96,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,   101,   102,   103,   104,   105,   106,   107,
-     108,   109,   110,   111,   112,   113,   114,   115,   116,    -1,
-      -1,   119,   120,    -1,   122,    -1,    -1,    -1,   126,   127,
-      -1,   129,    -1,   131,   132,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,   143,    -1,    -1,    -1,   147,
-      -1,    -1,    -1,   151,   152,    -1,   154,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,   170,    53,    54,    55,    56,    57,    58,   177,
-      -1,    -1,    62,    -1,    64,    65,    66,    67,    68,    69,
+      -1,    -1,    -1,   119,    -1,    -1,    -1,    -1,   124,   125,
+     126,    -1,    -1,    -1,    -1,   131,    -1,    -1,    -1,   135,
+     136,   137,   138,   139,    -1,    -1,   142,   143,    -1,   145,
+     146,   147,    -1,   149,   150,    -1,    -1,    -1,   154,   155,
+      -1,   157,   158,   159,   160,   161,   162,   163,   164,   165,
+     166,   167,   168,   169,   170,   171,    -1,   173,   174,   175,
+     176,   177,   178,    53,    54,    55,    56,    57,    58,    -1,
+      -1,    -1,    62,    -1,    -1,    65,    66,    67,    68,    69,
       70,    71,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    85,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,   101,   102,   103,   104,   105,   106,   107,   108,   109,
-     110,   111,   112,   113,   114,   115,   116,    -1,    -1,   119,
-     120,    -1,   122,    -1,    -1,    -1,   126,   127,    -1,   129,
-      -1,   131,   132,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,   143,    -1,    -1,    -1,   147,    -1,    -1,
-      -1,   151,   152,    -1,   154,    -1,    -1,    -1,    -1,    -1,
-      53,    54,    55,    56,    57,    58,    -1,    -1,    -1,    62,
-     170,    64,    65,    66,    67,    68,    69,    70,    -1,    -1,
+      -1,    -1,    -1,    -1,    84,    -1,    -1,    53,    54,    55,
+      56,    57,    58,    -1,    -1,    -1,    62,    -1,    -1,    65,
+      66,    67,    68,    69,    70,    -1,    -1,    -1,    -1,    -1,
+      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    84,    -1,
+     120,   121,    -1,   123,    -1,    -1,    -1,   127,   128,    -1,
+     130,    -1,   132,   133,    -1,    -1,    -1,    -1,    -1,    -1,
+      -1,    -1,    -1,    -1,   144,    -1,    -1,    -1,   148,    -1,
+      -1,    -1,   152,   153,   120,   121,   156,   123,    -1,    -1,
+      -1,   127,   128,    -1,   130,    -1,   132,   133,    -1,    -1,
+      -1,    -1,   172,    -1,    -1,    -1,    -1,    -1,   144,    -1,
+      -1,    -1,   148,    -1,    -1,    -1,   152,   153,    -1,    -1,
+     156,    -1,    -1,    -1,    -1,    53,    54,    55,    56,    57,
+      58,    -1,    -1,    -1,    62,    -1,   172,    65,    66,    67,
+      68,    69,    70,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
+      -1,    -1,    -1,    -1,    -1,    -1,    84,    -1,    -1,    -1,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    85,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,   101,   102,
-     103,   104,   105,   106,   107,   108,   109,   110,   111,   112,
-     113,   114,   115,   116,    -1,    -1,   119,   120,    -1,   122,
-      -1,    -1,    -1,   126,   127,    -1,   129,    -1,   131,   132,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-     143,    -1,    -1,    -1,   147,    -1,    -1,    -1,   151,   152,
-      -1,   154,    -1,    -1,    -1,    -1,    -1,    53,    54,    55,
-      56,    57,    58,    -1,    -1,    -1,    62,   170,    64,    65,
-      66,    67,    68,    69,    70,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    85,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,   101,   102,   103,   104,   105,
-     106,   107,   108,   109,   110,   111,   112,   113,   114,   115,
-     116,    -1,    -1,   119,   120,    -1,   122,    -1,    -1,    -1,
-     126,   127,    -1,   129,    -1,   131,   132,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    -1,   143,    -1,    -1,
-      -1,   147,    -1,    -1,    -1,   151,   152,    -1,   154,    -1,
+      -1,    -1,   120,   121,    -1,   123,    -1,    -1,    -1,   127,
+     128,    -1,   130,    -1,   132,   133,    -1,    -1,    -1,    -1,
+      -1,    -1,    -1,    -1,    -1,    -1,   144,    -1,    -1,    -1,
+     148,    -1,    -1,    -1,   152,   153,    -1,    -1,   156,    -1,
       -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,   170
+      -1,    -1,    -1,    -1,   172
 };
 
 /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
@@ -1869,75 +1827,75 @@ static const yytype_uint16 yystos[] =
        0,     1,     5,     6,     7,     8,     9,    10,    11,    12,
       13,    14,    15,    16,    17,    18,    22,    23,    24,    25,
       26,    29,    30,    32,    33,    34,    35,    36,    37,    38,
-      40,    53,    54,    55,    56,    57,    65,    82,    83,    85,
-      86,    87,    88,    90,    91,    92,    93,    94,    95,    96,
-      97,   118,   123,   124,   125,   130,   134,   135,   136,   137,
-     138,   141,   142,   144,   145,   146,   148,   149,   153,   155,
-     156,   157,   158,   159,   160,   161,   162,   163,   164,   165,
-     166,   167,   168,   169,   171,   183,   184,   185,   186,   187,
-     188,   189,   190,   191,   197,   198,   199,   200,   201,   202,
-     205,   206,   207,   208,   209,   210,   211,   214,   215,   216,
-     217,   218,   219,   220,   221,   222,   223,   224,   225,   226,
-     237,   238,   239,   240,   241,   242,   246,   247,   260,   261,
-     262,   263,   265,   266,   272,   273,   277,   279,   280,   281,
-     283,   285,   286,   287,   288,   290,   291,   292,   293,   294,
-     296,   297,   299,   300,   301,   302,   303,   304,   305,   307,
-     311,   312,   313,    80,   128,   264,    19,    68,    70,   306,
-      81,    85,    98,    99,   172,   243,   244,    53,    54,    55,
-      56,    57,    58,    62,    64,    65,    66,    67,    68,    69,
-      70,    85,   101,   102,   103,   104,   105,   106,   107,   108,
-     109,   110,   111,   112,   113,   114,   115,   116,   119,   120,
-     122,   126,   127,   129,   131,   132,   143,   147,   151,   152,
-     154,   170,   227,   317,   318,    19,    21,    64,   192,    29,
-     318,   318,    29,    44,    45,    64,    85,   117,   267,   268,
-     269,   267,   267,   267,   267,   267,    84,   101,   102,   103,
-     104,   105,   106,   107,   108,   109,   110,   113,   248,    56,
-     186,    58,    56,    57,   174,    85,    85,   119,   120,   278,
-     126,   127,   129,   284,   126,   133,   282,   131,   133,   275,
-     117,   152,   275,   275,    85,   128,   289,   133,   139,   140,
-     276,    85,   143,   117,   121,   274,   117,   295,   147,   275,
-     117,   298,   150,   151,   152,    27,    72,    27,   213,   213,
-     227,    71,    27,    27,    12,     6,   117,    85,   117,   120,
-     170,    50,     0,   185,    50,   171,     5,   172,   188,   193,
-     195,   196,   226,   237,   238,   239,   240,   241,   313,   172,
-     194,   188,   237,   238,   239,   240,   241,    85,   227,   187,
-     246,   175,   204,   230,   231,   232,   188,   233,   234,   315,
-     316,   318,    69,   271,   316,   233,   316,   204,   230,    52,
-      20,   181,    66,    67,   230,   174,    85,    85,    85,   172,
-     173,   175,   177,    64,   318,    27,    31,   318,   175,   175,
-     175,   175,    39,   268,   264,    85,   174,   174,   174,   174,
-      85,   101,   102,   103,   104,   106,   107,   108,   109,   113,
-     256,   174,   174,   174,   174,   111,   112,   174,    41,    42,
-      43,    85,   249,   171,    59,    61,   308,   309,   310,    85,
-      85,   117,   117,   117,   275,   117,   128,   275,   117,   275,
-      85,   128,   133,    85,   132,   275,    85,   275,    85,    85,
-     276,   117,   173,   275,   117,    85,   154,    85,   133,   212,
-     212,   318,    85,    85,    85,    85,   117,   117,   117,   117,
-      50,    85,    85,   173,   176,   188,   230,    27,   203,   231,
-     139,   314,    71,   177,   318,    27,   314,    27,   213,    85,
-     100,   117,   245,   174,   174,   174,    85,    98,    99,   243,
-      49,    85,   100,   117,   172,   228,   229,   318,   117,    46,
-      47,    48,   270,    85,    85,   117,   174,    85,    89,   259,
-     259,   259,   259,   174,   177,   174,   174,   174,   174,   174,
-     174,   174,   174,   174,   255,   259,   259,   257,   259,   257,
-     174,   174,   259,    85,    85,    60,    62,   173,   274,   275,
-     275,   117,   275,   275,    85,   275,   122,   173,   117,    72,
-     174,    85,    27,    27,   174,   172,   176,   176,   233,    85,
-     175,   318,   318,   233,   175,   235,   233,   212,   245,   245,
-     245,   174,    85,    85,    85,   172,   173,   176,   177,   176,
-     176,    85,    85,   176,   176,   258,   259,   255,   255,   255,
-     255,   258,    85,   259,   259,   259,   259,   259,   259,   257,
-     257,   259,    41,   173,   255,   255,   255,   255,   178,   178,
-     255,    63,   310,   275,   117,   117,   173,   154,    85,    85,
-      85,    85,   117,    85,    85,    71,   318,    85,   236,   234,
-     245,   174,   174,    85,   229,   318,   176,   176,   255,    41,
-      41,    41,    41,   174,   256,    41,    41,    41,    41,   101,
-     113,   114,   116,   250,   251,    68,   252,    41,    85,   174,
-     176,   318,   173,   176,   245,   245,    41,   258,   175,   175,
-     175,   175,   179,   173,   175,   179,    85,    85,   259,   259,
-     115,   176,    85,   253,   254,    41,   250,   257,    41,   176,
-     176,   174,   174,   176,   173,   176,   180,   259,   259,   253,
-     257,   176,   176
+      40,    53,    54,    55,    56,    57,    65,    81,    82,    84,
+      85,    86,    87,    89,    90,    91,    92,    93,    94,    95,
+      96,   119,   124,   125,   126,   131,   135,   136,   137,   138,
+     139,   142,   143,   145,   146,   147,   149,   150,   154,   155,
+     157,   158,   159,   160,   161,   162,   163,   164,   165,   166,
+     167,   168,   169,   170,   171,   173,   174,   175,   176,   177,
+     178,   179,   191,   192,   193,   194,   195,   196,   197,   198,
+     199,   205,   206,   207,   208,   209,   210,   213,   214,   215,
+     216,   217,   218,   221,   222,   223,   224,   225,   226,   227,
+     228,   229,   230,   231,   232,   233,   234,   245,   246,   247,
+     248,   249,   250,   254,   255,   268,   269,   270,   271,   273,
+     274,   280,   281,   282,   286,   288,   289,   290,   292,   294,
+     295,   296,   297,   299,   300,   301,   302,   303,   305,   306,
+     308,   309,   310,   311,   312,   313,   314,   316,   320,   321,
+     322,    80,   129,   272,    19,    68,    70,   315,    84,    97,
+      98,   180,   251,   252,    53,    54,    55,    56,    57,    58,
+      62,    65,    66,    67,    68,    69,    70,    84,   120,   121,
+     123,   127,   128,   130,   132,   133,   144,   148,   152,   153,
+     156,   172,   235,   326,   327,    19,    21,    64,   200,    29,
+     327,   327,    29,    44,    45,    64,    84,   118,   275,   276,
+     277,   275,   275,   275,   275,   275,    83,   100,   101,   102,
+     103,   104,   105,   106,   107,   108,   109,   110,   113,   256,
+      56,   194,    58,    56,    57,   182,    84,    84,   120,   121,
+     287,   127,   128,   130,   293,   127,   134,   291,   132,   134,
+     284,   118,   153,   284,   284,    84,   129,   298,   134,   140,
+     141,   285,    84,   144,   118,   122,   283,   118,   304,   148,
+     284,   118,   307,   151,   152,   153,    27,    72,    27,    27,
+     220,   220,   235,    71,    27,    27,    12,     6,   118,    84,
+     118,   121,   172,    50,     0,   193,    50,   179,     5,   180,
+     196,   201,   203,   204,   234,   245,   246,   247,   248,   249,
+     322,   180,   202,   196,   245,   246,   247,   248,   249,    84,
+     327,   195,   254,   183,   212,   238,   239,   240,   196,   241,
+     242,   324,   325,   327,    69,   279,   325,   241,   325,   212,
+     238,    52,    20,   189,    66,    67,   182,    84,    84,    84,
+     180,   181,   183,   185,    64,   327,    27,    31,   327,   183,
+     183,   183,   183,    39,   276,   272,    84,   182,   182,   182,
+     182,    84,   100,   101,   102,   103,   105,   106,   107,   108,
+     109,   113,   264,   182,   182,   182,   182,   182,   111,   112,
+     182,    41,    42,    43,    84,   257,   179,    59,    61,   317,
+     318,   319,    84,    84,   118,   118,   118,   284,   118,   129,
+     284,   118,   284,    84,   129,   134,    84,   133,   284,    84,
+     284,    84,    84,   285,   118,   181,   284,   118,    84,   156,
+      84,    84,   134,   219,   219,   327,    84,    84,    84,    84,
+     118,   118,   118,   118,    50,    84,    84,   181,   184,   196,
+     238,    27,   211,   239,   140,   323,    71,   185,   327,    27,
+     323,    27,   220,    84,    99,   118,   253,   182,   182,   182,
+      84,    97,    98,   251,    49,    84,    99,   118,   180,   236,
+     237,   327,   118,    46,    47,    48,   278,    84,    84,   118,
+     182,    84,    88,   267,   267,   267,   267,   182,   185,   182,
+     182,   182,   182,   182,   182,   182,   182,   182,   182,   263,
+     267,   267,   265,   267,   265,   267,   182,   182,   267,    84,
+      84,    60,    62,   181,   283,   284,   284,   118,   284,   284,
+      84,   284,   123,   181,   118,    72,   182,    84,    27,    27,
+     182,   180,   184,   184,   241,    84,   183,   327,   327,   241,
+     183,   243,   241,   219,   253,   253,   253,   182,    84,    84,
+      84,   180,   181,   184,   185,   184,   184,    84,    84,   184,
+     184,   266,   267,   263,   263,   263,   263,   266,    84,   267,
+     267,   267,   267,   267,   267,   265,   265,   267,   267,    41,
+     181,   263,   263,   263,   263,   263,   186,   186,   263,    63,
+     319,   284,   118,   118,   181,   156,    84,    84,    84,    84,
+     118,    84,    84,    71,   327,    84,   244,   242,   253,   182,
+     182,    84,   237,   327,   184,   184,   263,    41,    41,    41,
+      41,   182,   264,    41,    41,    41,    41,    41,   100,   113,
+     114,   115,   117,   258,   259,    68,   260,    41,    84,   182,
+     184,   327,   181,   184,   253,   253,    41,   266,   183,   183,
+     183,   183,   183,   187,   181,   183,   187,    84,    84,   267,
+     267,   116,   184,   184,    84,   261,   262,    41,   258,   265,
+      41,   184,   184,   182,   182,   184,   181,   184,   188,   267,
+     267,   261,   265,   184,   184
 };
 
 #define yyerrok		(yyerrstatus = 0)
@@ -2945,42 +2903,42 @@ YYLTYPE yylloc;
 
   case 37:
 
-    { result->cur_stmt_type_ = OBPROXY_T_OTHERS; ;}
+    {;}
     break;
 
-  case 47:
+  case 38:
 
-    { result->cur_stmt_type_ = OBPROXY_T_CREATE; ;}
+    { result->cur_stmt_type_ = OBPROXY_T_OTHERS; ;}
     break;
 
   case 48:
 
-    { result->cur_stmt_type_ = OBPROXY_T_DROP; ;}
+    { result->cur_stmt_type_ = OBPROXY_T_CREATE; ;}
     break;
 
   case 49:
 
-    { result->cur_stmt_type_ = OBPROXY_T_ALTER; ;}
+    { result->cur_stmt_type_ = OBPROXY_T_DROP; ;}
     break;
 
   case 50:
 
-    { result->cur_stmt_type_ = OBPROXY_T_TRUNCATE; ;}
+    { result->cur_stmt_type_ = OBPROXY_T_ALTER; ;}
     break;
 
   case 51:
 
-    { result->cur_stmt_type_ = OBPROXY_T_RENAME; ;}
+    { result->cur_stmt_type_ = OBPROXY_T_TRUNCATE; ;}
     break;
 
-  case 53:
+  case 52:
 
-    { result->sub_stmt_type_ = OBPROXY_T_SUB_CREATE_TABLE; ;}
+    { result->cur_stmt_type_ = OBPROXY_T_RENAME; ;}
     break;
 
   case 54:
 
-    { result->sub_stmt_type_ = OBPROXY_T_SUB_CREATE_INDEX; ;}
+    { result->sub_stmt_type_ = OBPROXY_T_SUB_CREATE_TABLE; ;}
     break;
 
   case 55:
@@ -2990,7 +2948,7 @@ YYLTYPE yylloc;
 
   case 56:
 
-    {;}
+    { result->sub_stmt_type_ = OBPROXY_T_SUB_CREATE_INDEX; ;}
     break;
 
   case 57:
@@ -3030,6 +2988,11 @@ YYLTYPE yylloc;
 
   case 64:
 
+    {;}
+    break;
+
+  case 65:
+
     {
                                 ObProxyTextPsParseNode *node = NULL;
                                 malloc_parse_node(node);
@@ -3038,7 +3001,7 @@ YYLTYPE yylloc;
                               ;}
     break;
 
-  case 65:
+  case 66:
 
     {
                                 ObProxyTextPsParseNode *node = NULL;
@@ -3048,7 +3011,7 @@ YYLTYPE yylloc;
                               ;}
     break;
 
-  case 66:
+  case 67:
 
     {
                           ObProxyTextPsParseNode *node = NULL;
@@ -3058,7 +3021,7 @@ YYLTYPE yylloc;
                         ;}
     break;
 
-  case 69:
+  case 70:
 
     {
                       result->text_ps_inner_stmt_type_ = OBPROXY_T_TEXT_PS_PREPARE;
@@ -3066,7 +3029,7 @@ YYLTYPE yylloc;
                     ;}
     break;
 
-  case 70:
+  case 71:
 
     {
                       result->cur_stmt_type_ = OBPROXY_T_TEXT_PS_EXECUTE;
@@ -3074,7 +3037,7 @@ YYLTYPE yylloc;
                     ;}
     break;
 
-  case 71:
+  case 72:
 
     {
                       result->cur_stmt_type_ = OBPROXY_T_TEXT_PS_EXECUTE;
@@ -3082,19 +3045,19 @@ YYLTYPE yylloc;
                     ;}
     break;
 
-  case 72:
+  case 73:
 
     {
             ;}
     break;
 
-  case 73:
+  case 74:
 
     {
             ;}
     break;
 
-  case 74:
+  case 75:
 
     {
               result->cur_stmt_type_ = OBPROXY_T_TEXT_PS_DROP;
@@ -3102,7 +3065,7 @@ YYLTYPE yylloc;
             ;}
     break;
 
-  case 75:
+  case 76:
 
     {
               result->cur_stmt_type_ = OBPROXY_T_TEXT_PS_DROP;
@@ -3110,74 +3073,74 @@ YYLTYPE yylloc;
             ;}
     break;
 
-  case 76:
+  case 77:
 
     { result->cur_stmt_type_ = OBPROXY_T_GRANT; ;}
     break;
 
-  case 77:
+  case 78:
 
     { result->cur_stmt_type_ = OBPROXY_T_REVOKE; ;}
     break;
 
-  case 78:
+  case 79:
 
     { result->cur_stmt_type_ = OBPROXY_T_ANALYZE; ;}
     break;
 
-  case 79:
+  case 80:
 
     { result->cur_stmt_type_ = OBPROXY_T_PURGE; ;}
     break;
 
-  case 80:
+  case 81:
 
     { result->cur_stmt_type_ = OBPROXY_T_FLASHBACK; ;}
     break;
 
-  case 81:
+  case 82:
 
     { result->cur_stmt_type_ = OBPROXY_T_COMMENT; ;}
     break;
 
-  case 82:
+  case 83:
 
     { result->cur_stmt_type_ = OBPROXY_T_AUDIT; ;}
     break;
 
-  case 83:
+  case 84:
 
     { result->cur_stmt_type_ = OBPROXY_T_NOAUDIT; ;}
     break;
 
-  case 86:
+  case 87:
 
     {;}
     break;
 
-  case 87:
+  case 88:
 
     {;}
     break;
 
-  case 88:
+  case 89:
 
     {;}
     break;
 
-  case 93:
+  case 94:
 
     { result->cur_stmt_type_ = OBPROXY_T_SELECT_TX_RO; ;}
     break;
 
-  case 97:
+  case 98:
 
     { result->col_name_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 98:
+  case 99:
 
-    { result->cur_stmt_type_ = OBPROXY_T_SET_AC_0; ;}
+    {;}
     break;
 
   case 100:
@@ -3217,17 +3180,17 @@ YYLTYPE yylloc;
 
   case 107:
 
-    {;}
+    { result->sub_stmt_type_ = OBPROXY_T_SUB_SELECT_DATABASE; ;}
     break;
 
   case 108:
 
-    { result->sub_stmt_type_ = OBPROXY_T_SUB_SELECT_DATABASE; ;}
+    { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_DATABASES; ;}
     break;
 
   case 109:
 
-    { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_DATABASES; ;}
+    {;}
     break;
 
   case 110:
@@ -3247,23 +3210,19 @@ YYLTYPE yylloc;
 
   case 113:
 
-    {;}
-    break;
-
-  case 114:
-
     { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_CREATE_TABLE; ;}
     break;
 
-  case 115:
+  case 114:
 
     {
+                      result->table_info_.table_name_ = (yyvsp[(2) - (2)].str);
                       result->cur_stmt_type_ = OBPROXY_T_DESC;
                       result->sub_stmt_type_ = OBPROXY_T_SUB_DESC_TABLE;
                   ;}
     break;
 
-  case 116:
+  case 115:
 
     {
                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_COLUMNS;
@@ -3271,7 +3230,7 @@ YYLTYPE yylloc;
                   ;}
     break;
 
-  case 117:
+  case 116:
 
     {
                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_COLUMNS;
@@ -3280,7 +3239,7 @@ YYLTYPE yylloc;
                   ;}
     break;
 
-  case 118:
+  case 117:
 
     {
                  result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_INDEX;
@@ -3288,7 +3247,7 @@ YYLTYPE yylloc;
                ;}
     break;
 
-  case 119:
+  case 118:
 
     {
                  result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_INDEX;
@@ -3297,98 +3256,106 @@ YYLTYPE yylloc;
                ;}
     break;
 
-  case 120:
+  case 119:
 
     {;}
     break;
 
-  case 121:
+  case 120:
 
     { result->table_info_.table_name_ = (yyvsp[(2) - (2)].str); ;}
     break;
 
-  case 122:
+  case 121:
 
     {;}
     break;
 
-  case 123:
+  case 122:
 
     { result->table_info_.database_name_ = (yyvsp[(2) - (2)].str); ;}
     break;
 
-  case 124:
+  case 123:
 
     {
                   result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TABLES;
                 ;}
     break;
 
-  case 125:
+  case 124:
 
     {
                   result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_FULL_TABLES;
                 ;}
     break;
 
-  case 126:
+  case 125:
 
     {
                         result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TABLE_STATUS;
                       ;}
     break;
 
-  case 127:
+  case 126:
 
     { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_DB_VERSION; ;}
     break;
 
-  case 128:
+  case 127:
 
-    { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY; ;}
+    { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_ELASTIC_ID; ;}
     break;
 
-  case 129:
+  case 128:
 
     {
                      SET_ICMD_ONE_STRING((yyvsp[(3) - (3)].str));
-                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY;
+                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_ELASTIC_ID;
                  ;}
     break;
 
-  case 130:
+  case 129:
 
     {
                      SET_ICMD_SECOND_STRING((yyvsp[(5) - (5)].str));
-                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY;
+                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_ELASTIC_ID;
                  ;}
     break;
 
-  case 131:
+  case 130:
 
     {
                      SET_ICMD_ONE_STRING((yyvsp[(3) - (7)].str));
                      SET_ICMD_SECOND_STRING((yyvsp[(7) - (7)].str));
-                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY;
+                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_ELASTIC_ID;
                  ;}
     break;
 
+  case 131:
+
+    { result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY; ;}
+    break;
+
   case 132:
 
-    { result->cur_stmt_type_ = OBPROXY_T_SELECT_ROUTE_ADDR; ;}
+    {
+                     result->table_info_.table_name_ = (yyvsp[(3) - (3)].str);
+                     result->sub_stmt_type_ = OBPROXY_T_SUB_SHOW_TOPOLOGY;
+                 ;}
     break;
 
   case 133:
 
-    {
-                              result->cur_stmt_type_ = OBPROXY_T_SET_ROUTE_ADDR;
-                              result->cmd_info_.integer_[0] = (yyvsp[(3) - (3)].num);
-                           ;}
+    { result->cur_stmt_type_ = OBPROXY_T_SELECT_ROUTE_ADDR; ;}
     break;
 
   case 134:
 
-    {;}
+    {
+                              result->cur_stmt_type_ = OBPROXY_T_SET_ROUTE_ADDR;
+                              result->cmd_info_.integer_[0] = (yyvsp[(3) - (3)].num);
+                           ;}
     break;
 
   case 135:
@@ -3416,14 +3383,19 @@ YYLTYPE yylloc;
     {;}
     break;
 
-  case 141:
+  case 140:
+
+    {;}
+    break;
+
+  case 142:
 
     {
                    result->table_info_.table_name_ = (yyvsp[(1) - (1)].str);
                  ;}
     break;
 
-  case 142:
+  case 143:
 
     {
                    result->table_info_.package_name_ = (yyvsp[(1) - (3)].str);
@@ -3431,7 +3403,7 @@ YYLTYPE yylloc;
                  ;}
     break;
 
-  case 143:
+  case 144:
 
     {
                    result->table_info_.database_name_ = (yyvsp[(1) - (5)].str);
@@ -3440,14 +3412,14 @@ YYLTYPE yylloc;
                  ;}
     break;
 
-  case 144:
+  case 145:
 
     {
                 result->call_parse_info_.node_count_ = 0;
               ;}
     break;
 
-  case 145:
+  case 146:
 
     {
                 result->call_parse_info_.node_count_ = 0;
@@ -3455,14 +3427,14 @@ YYLTYPE yylloc;
               ;}
     break;
 
-  case 146:
+  case 147:
 
     {
                 add_call_node(result->call_parse_info_, (yyvsp[(3) - (3)].node));
               ;}
     break;
 
-  case 147:
+  case 148:
 
     {
             malloc_call_node((yyval.node), CALL_TOKEN_STR_VAL);
@@ -3470,7 +3442,7 @@ YYLTYPE yylloc;
          ;}
     break;
 
-  case 148:
+  case 149:
 
     {
            malloc_call_node((yyval.node), CALL_TOKEN_INT_VAL);
@@ -3478,7 +3450,7 @@ YYLTYPE yylloc;
          ;}
     break;
 
-  case 149:
+  case 150:
 
     {
            malloc_call_node((yyval.node), CALL_TOKEN_NUMBER_VAL);
@@ -3486,7 +3458,7 @@ YYLTYPE yylloc;
          ;}
     break;
 
-  case 150:
+  case 151:
 
     {
            malloc_call_node((yyval.node), CALL_TOKEN_USER_VAR);
@@ -3494,7 +3466,7 @@ YYLTYPE yylloc;
          ;}
     break;
 
-  case 151:
+  case 152:
 
     {
            malloc_call_node((yyval.node), CALL_TOKEN_SYS_VAR);
@@ -3502,7 +3474,7 @@ YYLTYPE yylloc;
          ;}
     break;
 
-  case 152:
+  case 153:
 
     {
            result->placeholder_list_idx_++;
@@ -3511,7 +3483,7 @@ YYLTYPE yylloc;
          ;}
     break;
 
-  case 166:
+  case 167:
 
     {
                                                                   handle_stmt_end(result);
@@ -3519,7 +3491,7 @@ YYLTYPE yylloc;
                                                                 ;}
     break;
 
-  case 171:
+  case 172:
 
     {
                                                  handle_stmt_end(result);
@@ -3527,56 +3499,56 @@ YYLTYPE yylloc;
                                                ;}
     break;
 
-  case 175:
+  case 176:
 
     {
           add_set_var_node(result->set_parse_info_, (yyvsp[(4) - (4)].var_node), (yyvsp[(2) - (4)].str), SET_VAR_USER);
         ;}
     break;
 
-  case 176:
+  case 177:
 
     {
           add_set_var_node(result->set_parse_info_, (yyvsp[(6) - (6)].var_node), (yyvsp[(4) - (6)].str), SET_VAR_SYS);
         ;}
     break;
 
-  case 177:
+  case 178:
 
     {
           add_set_var_node(result->set_parse_info_, (yyvsp[(4) - (4)].var_node), (yyvsp[(2) - (4)].str), SET_VAR_SYS);
         ;}
     break;
 
-  case 178:
+  case 179:
 
     {
           add_set_var_node(result->set_parse_info_, (yyvsp[(5) - (5)].var_node), (yyvsp[(3) - (5)].str), SET_VAR_SYS);
         ;}
     break;
 
-  case 179:
+  case 180:
 
     {
           add_set_var_node(result->set_parse_info_, (yyvsp[(6) - (6)].var_node), (yyvsp[(4) - (6)].str), SET_VAR_SYS);
         ;}
     break;
 
-  case 180:
+  case 181:
 
     {
           add_set_var_node(result->set_parse_info_, (yyvsp[(4) - (4)].var_node), (yyvsp[(2) - (4)].str), SET_VAR_SYS);
         ;}
     break;
 
-  case 181:
+  case 182:
 
     {
           add_set_var_node(result->set_parse_info_, (yyvsp[(3) - (3)].var_node), (yyvsp[(1) - (3)].str), SET_VAR_SYS);
         ;}
     break;
 
-  case 182:
+  case 183:
 
     {
                malloc_set_var_node((yyval.var_node), SET_VALUE_TYPE_STR);
@@ -3584,7 +3556,7 @@ YYLTYPE yylloc;
              ;}
     break;
 
-  case 183:
+  case 184:
 
     {
                malloc_set_var_node((yyval.var_node), SET_VALUE_TYPE_INT);
@@ -3592,7 +3564,7 @@ YYLTYPE yylloc;
              ;}
     break;
 
-  case 184:
+  case 185:
 
     {
                malloc_set_var_node((yyval.var_node), SET_VALUE_TYPE_NUMBER);
@@ -3600,42 +3572,42 @@ YYLTYPE yylloc;
              ;}
     break;
 
-  case 187:
+  case 188:
 
     {;}
     break;
 
-  case 188:
+  case 189:
 
     {;}
     break;
 
-  case 189:
+  case 190:
 
     { result->dbmesh_route_info_.tb_idx_str_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 190:
+  case 191:
 
     { result->dbmesh_route_info_.table_name_str_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 191:
+  case 192:
 
     { result->dbmesh_route_info_.group_idx_str_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 192:
+  case 193:
 
     { result->dbmesh_route_info_.es_idx_str_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 193:
+  case 194:
 
     { result->dbmesh_route_info_.testload_str_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 194:
+  case 195:
 
     {
               malloc_shard_column_node((yyval.shard_node), (yyvsp[(2) - (7)].str), (yyvsp[(3) - (7)].str), DBMESH_TOKEN_STR_VAL);
@@ -3644,52 +3616,57 @@ YYLTYPE yylloc;
             ;}
     break;
 
-  case 195:
+  case 196:
 
     { result->trace_id_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 196:
+  case 197:
 
     { result->rpc_id_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 197:
+  case 198:
 
     { result->dbmesh_route_info_.tnt_id_str_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 198:
+  case 199:
 
     { result->dbmesh_route_info_.disaster_status_str_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
-  case 199:
+  case 200:
 
     {;}
     break;
 
-  case 200:
+  case 201:
 
     {;}
     break;
 
-  case 201:
+  case 202:
 
-    {;}
+    { result->target_db_server_ = (yyvsp[(4) - (6)].str); ;}
     break;
 
   case 203:
 
+    {;}
+    break;
+
+  case 205:
+
     { result->has_simple_route_info_ = true; result->simple_route_info_.table_name_ = (yyvsp[(2) - (2)].str); ;}
     break;
 
-  case 204:
+  case 206:
 
     { result->simple_route_info_.part_key_ = (yyvsp[(2) - (2)].str); ;}
     break;
 
-  case 208:
+  case 210:
 
     {
               result->dbp_route_info_.has_group_info_ = true;
@@ -3697,7 +3674,7 @@ YYLTYPE yylloc;
             ;}
     break;
 
-  case 209:
+  case 211:
 
     {
               result->dbp_route_info_.has_group_info_ = true;
@@ -3705,37 +3682,42 @@ YYLTYPE yylloc;
             ;}
     break;
 
-  case 210:
+  case 212:
 
     { result->dbp_route_info_.scan_all_ = true; ;}
     break;
 
-  case 211:
+  case 213:
 
     { result->dbp_route_info_.scan_all_ = true; ;}
     break;
 
-  case 212:
+  case 214:
+
+    { result->dbp_route_info_.sticky_session_ = true; ;}
+    break;
+
+  case 215:
 
     {result->dbp_route_info_.has_shard_key_ = true;;}
     break;
 
-  case 213:
+  case 216:
 
     { result->trace_id_ = (yyvsp[(3) - (4)].str); ;}
     break;
 
-  case 214:
+  case 217:
 
     { result->trace_id_ = (yyvsp[(3) - (6)].str); result->rpc_id_ = (yyvsp[(5) - (6)].str); ;}
     break;
 
-  case 215:
+  case 218:
 
     {;}
     break;
 
-  case 217:
+  case 220:
 
     {
                    if (result->dbp_route_info_.shard_key_count_ < OBPROXY_MAX_DBP_SHARD_KEY_NUM) {
@@ -3746,52 +3728,57 @@ YYLTYPE yylloc;
                  ;}
     break;
 
-  case 220:
+  case 223:
 
     { result->dbmesh_route_info_.group_idx_str_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 221:
+  case 224:
 
     { result->dbmesh_route_info_.tb_idx_str_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 222:
+  case 225:
 
     { result->dbmesh_route_info_.table_name_str_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 223:
+  case 226:
 
     { result->dbmesh_route_info_.es_idx_str_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 224:
+  case 227:
 
     { result->dbmesh_route_info_.testload_str_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 225:
+  case 228:
 
     { result->trace_id_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 226:
+  case 229:
 
     { result->rpc_id_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 227:
+  case 230:
 
     { result->dbmesh_route_info_.tnt_id_str_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 228:
+  case 231:
 
     { result->dbmesh_route_info_.disaster_status_str_ = (yyvsp[(3) - (3)].str); ;}
     break;
 
-  case 229:
+  case 232:
+
+    { result->target_db_server_ = (yyvsp[(3) - (3)].str); ;}
+    break;
+
+  case 233:
 
     {
              malloc_shard_column_node((yyval.shard_node), (yyvsp[(1) - (5)].str), (yyvsp[(3) - (5)].str), DBMESH_TOKEN_STR_VAL);
@@ -3800,32 +3787,32 @@ YYLTYPE yylloc;
            ;}
     break;
 
-  case 230:
+  case 234:
 
     {;}
     break;
 
-  case 231:
+  case 235:
 
     { (yyval.str).str_ = NULL; (yyval.str).str_len_ = 0; ;}
     break;
 
-  case 233:
+  case 237:
 
     { (yyval.str).str_ = NULL; (yyval.str).str_len_ = 0; ;}
     break;
 
-  case 255:
+  case 259:
 
     { result->query_timeout_ = (yyvsp[(3) - (4)].num); ;}
     break;
 
-  case 256:
+  case 260:
 
     {;}
     break;
 
-  case 258:
+  case 262:
 
     {
       add_hint_index(result->dbmesh_route_info_, (yyvsp[(3) - (5)].str));
@@ -3833,75 +3820,105 @@ YYLTYPE yylloc;
     ;}
     break;
 
-  case 259:
+  case 263:
 
     {;}
     break;
 
-  case 260:
+  case 264:
 
     {;}
     break;
 
-  case 261:
+  case 265:
 
     {;}
     break;
 
-  case 262:
+  case 266:
 
     {;}
     break;
 
-  case 263:
+  case 267:
 
     {;}
     break;
 
-  case 264:
+  case 268:
 
     { SET_READ_CONSISTENCY(OBPROXY_READ_CONSISTENCY_WEAK); ;}
     break;
 
-  case 265:
+  case 269:
 
     { SET_READ_CONSISTENCY(OBPROXY_READ_CONSISTENCY_STRONG); ;}
     break;
 
-  case 266:
+  case 270:
 
     { SET_READ_CONSISTENCY(OBPROXY_READ_CONSISTENCY_FROZEN); ;}
     break;
 
-  case 269:
+  case 273:
 
     { result->cur_stmt_type_ = OBPROXY_T_SHOW_WARNINGS; ;}
     break;
 
-  case 270:
+  case 274:
 
     { result->cur_stmt_type_ = OBPROXY_T_SHOW_ERRORS; ;}
     break;
 
-  case 271:
+  case 275:
 
     { result->cur_stmt_type_ = OBPROXY_T_SHOW_TRACE; ;}
     break;
 
-  case 295:
+  case 299:
+
+    {;}
+    break;
+
+  case 300:
+
+    {;}
+    break;
+
+  case 301:
+
+    {;}
+    break;
+
+  case 302:
+
+    {;}
+    break;
+
+  case 303:
+
+    {;}
+    break;
+
+  case 304:
+
+    {;}
+    break;
+
+  case 305:
 
     {
 ;}
     break;
 
-  case 296:
+  case 306:
 
     {
    result->cmd_info_.integer_[2] = (yyvsp[(2) - (2)].num);/*row*/
 ;}
     break;
 
-  case 297:
+  case 307:
 
     {
    result->cmd_info_.integer_[1] = (yyvsp[(2) - (4)].num);/*offset*/
@@ -3909,7 +3926,7 @@ YYLTYPE yylloc;
 ;}
     break;
 
-  case 298:
+  case 308:
 
     {
    result->cmd_info_.integer_[1] = (yyvsp[(4) - (4)].num);/*offset*/
@@ -3917,342 +3934,342 @@ YYLTYPE yylloc;
 ;}
     break;
 
-  case 299:
+  case 309:
 
     {;}
     break;
 
-  case 300:
+  case 310:
 
     { result->cmd_info_.string_[0] = (yyvsp[(2) - (2)].str);;}
     break;
 
-  case 301:
+  case 311:
 
     {;}
     break;
 
-  case 302:
+  case 312:
 
     { result->cmd_info_.string_[1] = (yyvsp[(2) - (2)].str);;}
     break;
 
-  case 304:
+  case 314:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_NET_THREAD); ;}
     break;
 
-  case 305:
+  case 315:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_NET_CONNECTION); ;}
     break;
 
-  case 306:
+  case 316:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_NET_CONNECTION, (yyvsp[(2) - (3)].num)); ;}
     break;
 
-  case 307:
+  case 317:
 
     {;}
     break;
 
-  case 308:
+  case 318:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_CONFIG_DIFF); ;}
     break;
 
-  case 309:
+  case 319:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_CONFIG_DIFF_USER); ;}
     break;
 
-  case 310:
+  case 320:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_SESSION_LIST); ;}
     break;
 
-  case 312:
+  case 322:
 
     {SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_GLOBAL_SESSION_LIST);;}
     break;
 
-  case 313:
+  case 323:
 
     {SET_ICMD_SUB_AND_ONE_STRING(OBPROXY_T_SUB_GLOBAL_SESSION_LIST_INFO, (yyvsp[(2) - (2)].str));;}
     break;
 
-  case 314:
+  case 324:
 
     {SET_ICMD_SUB_AND_ONE_STRING(OBPROXY_T_SUB_GLOBAL_SESSION_LIST_LIKE, (yyvsp[(3) - (3)].str));;}
     break;
 
-  case 315:
+  case 325:
 
     {SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_GLOBAL_SESSION_LIST_INFO_ALL);;}
     break;
 
-  case 316:
+  case 326:
 
     {result->cmd_info_.string_[0] = (yyvsp[(2) - (2)].str);;}
     break;
 
-  case 318:
+  case 328:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_SESSION_LIST_INTERNAL); ;}
     break;
 
-  case 319:
+  case 329:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_SESSION_ATTRIBUTE); ;}
     break;
 
-  case 320:
+  case 330:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_SESSION_ATTRIBUTE, (yyvsp[(2) - (3)].num)); ;}
     break;
 
-  case 321:
+  case 331:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_SESSION_STAT); ;}
     break;
 
-  case 322:
+  case 332:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_SESSION_STAT, (yyvsp[(2) - (3)].num)); ;}
     break;
 
-  case 323:
+  case 333:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_SESSION_VARIABLES_LOCAL); ;}
     break;
 
-  case 324:
+  case 334:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_SESSION_VARIABLES_LOCAL, (yyvsp[(2) - (3)].num)); ;}
     break;
 
-  case 325:
+  case 335:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_SESSION_VARIABLES_ALL); ;}
     break;
 
-  case 326:
+  case 336:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_SESSION_VARIABLES_ALL, (yyvsp[(3) - (4)].num)); ;}
     break;
 
-  case 327:
+  case 337:
 
     {;}
     break;
 
-  case 328:
+  case 338:
 
     { SET_ICMD_ONE_ID((yyvsp[(2) - (2)].num)); ;}
     break;
 
-  case 329:
+  case 339:
 
     {;}
     break;
 
-  case 330:
+  case 340:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_INFO_IDC); ;}
     break;
 
-  case 331:
+  case 341:
 
     {;}
     break;
 
-  case 333:
+  case 343:
 
     {;}
     break;
 
-  case 334:
+  case 344:
 
     { SET_ICMD_ONE_STRING((yyvsp[(1) - (1)].str)); ;}
     break;
 
-  case 335:
+  case 345:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_CONGEST_ALL);;}
     break;
 
-  case 336:
+  case 346:
 
     { SET_ICMD_SUB_AND_ONE_STRING(OBPROXY_T_SUB_CONGEST_ALL, (yyvsp[(2) - (2)].str));;}
     break;
 
-  case 337:
+  case 347:
 
     {;}
     break;
 
-  case 338:
+  case 348:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_ROUTE_ROUTINE); ;}
     break;
 
-  case 339:
+  case 349:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_ROUTE_PARTITION); ;}
     break;
 
-  case 340:
+  case 350:
 
     {;}
     break;
 
-  case 341:
+  case 351:
 
     { SET_ICMD_ONE_STRING((yyvsp[(2) - (2)].str)); ;}
     break;
 
-  case 342:
+  case 352:
 
     {;}
     break;
 
-  case 343:
+  case 353:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_MEMORY_OBJPOOL); ;}
     break;
 
-  case 344:
+  case 354:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_SQLAUDIT_AUDIT_ID); ;}
     break;
 
-  case 345:
+  case 355:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_SQLAUDIT_SM_ID, (yyvsp[(2) - (2)].num)); ;}
     break;
 
-  case 347:
+  case 357:
 
     {;}
     break;
 
-  case 348:
+  case 358:
 
     { SET_ICMD_SECOND_ID((yyvsp[(1) - (1)].num)); ;}
     break;
 
-  case 349:
+  case 359:
 
     { SET_ICMD_TWO_ID((yyvsp[(3) - (3)].num), (yyvsp[(1) - (3)].num)); ;}
     break;
 
-  case 350:
+  case 360:
 
     { SET_ICMD_TWO_ID((yyvsp[(3) - (5)].num), (yyvsp[(1) - (5)].num)); SET_ICMD_ONE_STRING((yyvsp[(5) - (5)].str)); ;}
     break;
 
-  case 351:
+  case 361:
 
     {;}
     break;
 
-  case 352:
+  case 362:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_STAT_REFRESH); ;}
     break;
 
-  case 354:
+  case 364:
 
     {;}
     break;
 
-  case 355:
+  case 365:
 
     { SET_ICMD_ONE_ID((yyvsp[(1) - (1)].num));  ;}
     break;
 
-  case 356:
+  case 366:
 
     { SET_ICMD_SUB_AND_TWO_ID(OBPROXY_T_SUB_TRACE_LIMIT, (yyvsp[(1) - (2)].num),(yyvsp[(2) - (2)].num)); ;}
     break;
 
-  case 357:
+  case 367:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_INFO_BINARY); ;}
     break;
 
-  case 358:
+  case 368:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_INFO_UPGRADE); ;}
     break;
 
-  case 359:
+  case 369:
 
     { SET_ICMD_SUB_TYPE(OBPROXY_T_SUB_INFO_IDC); ;}
     break;
 
-  case 360:
+  case 370:
 
     { SET_ICMD_ONE_STRING((yyvsp[(3) - (4)].str)); ;}
     break;
 
-  case 361:
+  case 371:
 
     { SET_ICMD_TWO_STRING((yyvsp[(3) - (5)].str), (yyvsp[(5) - (5)].str)); ;}
     break;
 
-  case 362:
+  case 372:
 
     { SET_ICMD_CONFIG_INT_VALUE((yyvsp[(3) - (5)].str), (yyvsp[(5) - (5)].num)); ;}
     break;
 
-  case 363:
+  case 373:
 
     { SET_ICMD_ONE_STRING((yyvsp[(3) - (3)].str)); ;}
     break;
 
-  case 364:
+  case 374:
 
     {;}
     break;
 
-  case 365:
+  case 375:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_KILL_CS, (yyvsp[(2) - (2)].num)); ;}
     break;
 
-  case 366:
+  case 376:
 
     { SET_ICMD_SUB_AND_TWO_ID(OBPROXY_T_SUB_KILL_SS, (yyvsp[(2) - (3)].num), (yyvsp[(3) - (3)].num)); ;}
     break;
 
-  case 367:
+  case 377:
 
     {SET_ICMD_TYPE_STRING_INT_VALUE(OBPROXY_T_SUB_KILL_GLOBAL_SS_ID, (yyvsp[(2) - (3)].str),(yyvsp[(3) - (3)].num));;}
     break;
 
-  case 368:
+  case 378:
 
     {SET_ICMD_SUB_AND_ONE_STRING(OBPROXY_T_SUB_KILL_GLOBAL_SS_DBKEY, (yyvsp[(2) - (2)].str));;}
     break;
 
-  case 369:
+  case 379:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_KILL_CONNECTION, (yyvsp[(2) - (2)].num)); ;}
     break;
 
-  case 370:
+  case 380:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_KILL_CONNECTION, (yyvsp[(3) - (3)].num)); ;}
     break;
 
-  case 371:
+  case 381:
 
     { SET_ICMD_SUB_AND_ONE_ID(OBPROXY_T_SUB_KILL_QUERY, (yyvsp[(3) - (3)].num)); ;}
     break;
 
-  case 374:
+  case 384:
 
     {
                                                                 result->has_anonymous_block_ = false ;
@@ -4260,22 +4277,22 @@ YYLTYPE yylloc;
                                                               ;}
     break;
 
-  case 375:
+  case 385:
 
     { result->cur_stmt_type_ = OBPROXY_T_BEGIN; ;}
     break;
 
-  case 376:
+  case 386:
 
     { result->cur_stmt_type_ = OBPROXY_T_BEGIN; ;}
     break;
 
-  case 377:
+  case 387:
 
     { result->cur_stmt_type_ = OBPROXY_T_BEGIN; ;}
     break;
 
-  case 384:
+  case 394:
 
     {
                             result->cur_stmt_type_ = OBPROXY_T_USE_DB;
@@ -4283,27 +4300,27 @@ YYLTYPE yylloc;
                           ;}
     break;
 
-  case 385:
+  case 395:
 
     { result->cur_stmt_type_ = OBPROXY_T_HELP; ;}
     break;
 
-  case 387:
+  case 397:
 
     {;}
     break;
 
-  case 388:
+  case 398:
 
     { result->part_name_ = (yyvsp[(2) - (2)].str); ;}
     break;
 
-  case 389:
+  case 399:
 
     { result->part_name_ = (yyvsp[(3) - (4)].str); ;}
     break;
 
-  case 390:
+  case 400:
 
     {
                                                   handle_stmt_end(result);
@@ -4311,14 +4328,14 @@ YYLTYPE yylloc;
                                                 ;}
     break;
 
-  case 391:
+  case 401:
 
     {
                           result->table_info_.table_name_ = (yyvsp[(1) - (1)].str);
                         ;}
     break;
 
-  case 392:
+  case 402:
 
     {
                                       result->table_info_.database_name_ = (yyvsp[(1) - (3)].str);
@@ -4326,7 +4343,7 @@ YYLTYPE yylloc;
                                     ;}
     break;
 
-  case 393:
+  case 403:
 
     {
                                     UPDATE_ALIAS_NAME((yyvsp[(2) - (2)].str));
@@ -4334,7 +4351,7 @@ YYLTYPE yylloc;
                                   ;}
     break;
 
-  case 394:
+  case 404:
 
     {
                                                 UPDATE_ALIAS_NAME((yyvsp[(4) - (4)].str));
@@ -4343,7 +4360,7 @@ YYLTYPE yylloc;
                                               ;}
     break;
 
-  case 395:
+  case 405:
 
     {
                                       UPDATE_ALIAS_NAME((yyvsp[(3) - (3)].str));
@@ -4351,7 +4368,7 @@ YYLTYPE yylloc;
                                     ;}
     break;
 
-  case 396:
+  case 406:
 
     {
                                                   UPDATE_ALIAS_NAME((yyvsp[(5) - (5)].str));
diff --git a/src/obproxy/opsql/parser/ob_proxy_parser_utf8_tab.h b/src/obproxy/opsql/parser/ob_proxy_parser_utf8_tab.h
index 7ce9c0f2..16705243 100644
--- a/src/obproxy/opsql/parser/ob_proxy_parser_utf8_tab.h
+++ b/src/obproxy/opsql/parser/ob_proxy_parser_utf8_tab.h
@@ -134,96 +134,104 @@ extern int ob_proxy_parser_utf8_yydebug;
      UNION = 333,
      FOR = 334,
      TX_READ_ONLY = 335,
-     AUTOCOMMIT_0 = 336,
-     SELECT_OBPROXY_ROUTE_ADDR = 337,
-     SET_OBPROXY_ROUTE_ADDR = 338,
-     NAME_OB_DOT = 339,
-     NAME_OB = 340,
-     EXPLAIN = 341,
-     DESC = 342,
-     DESCRIBE = 343,
-     NAME_STR = 344,
-     USE = 345,
-     HELP = 346,
-     SET_NAMES = 347,
-     SET_CHARSET = 348,
-     SET_PASSWORD = 349,
-     SET_DEFAULT = 350,
-     SET_OB_READ_CONSISTENCY = 351,
-     SET_TX_READ_ONLY = 352,
-     GLOBAL = 353,
-     SESSION = 354,
-     NUMBER_VAL = 355,
-     GROUP_ID = 356,
-     TABLE_ID = 357,
-     ELASTIC_ID = 358,
-     TESTLOAD = 359,
-     ODP_COMMENT = 360,
-     TNT_ID = 361,
-     DISASTER_STATUS = 362,
-     TRACE_ID = 363,
-     RPC_ID = 364,
+     SELECT_OBPROXY_ROUTE_ADDR = 336,
+     SET_OBPROXY_ROUTE_ADDR = 337,
+     NAME_OB_DOT = 338,
+     NAME_OB = 339,
+     EXPLAIN = 340,
+     DESC = 341,
+     DESCRIBE = 342,
+     NAME_STR = 343,
+     USE = 344,
+     HELP = 345,
+     SET_NAMES = 346,
+     SET_CHARSET = 347,
+     SET_PASSWORD = 348,
+     SET_DEFAULT = 349,
+     SET_OB_READ_CONSISTENCY = 350,
+     SET_TX_READ_ONLY = 351,
+     GLOBAL = 352,
+     SESSION = 353,
+     NUMBER_VAL = 354,
+     GROUP_ID = 355,
+     TABLE_ID = 356,
+     ELASTIC_ID = 357,
+     TESTLOAD = 358,
+     ODP_COMMENT = 359,
+     TNT_ID = 360,
+     DISASTER_STATUS = 361,
+     TRACE_ID = 362,
+     RPC_ID = 363,
+     TARGET_DB_SERVER = 364,
      DBP_COMMENT = 365,
      ROUTE_TAG = 366,
      SYS_TAG = 367,
      TABLE_NAME = 368,
      SCAN_ALL = 369,
-     PARALL = 370,
-     SHARD_KEY = 371,
-     INT_NUM = 372,
-     SHOW_PROXYNET = 373,
-     THREAD = 374,
-     CONNECTION = 375,
-     LIMIT = 376,
-     OFFSET = 377,
-     SHOW_PROCESSLIST = 378,
-     SHOW_PROXYSESSION = 379,
-     SHOW_GLOBALSESSION = 380,
-     ATTRIBUTE = 381,
-     VARIABLES = 382,
-     ALL = 383,
-     STAT = 384,
-     SHOW_PROXYCONFIG = 385,
-     DIFF = 386,
-     USER = 387,
-     LIKE = 388,
-     SHOW_PROXYSM = 389,
-     SHOW_PROXYCLUSTER = 390,
-     SHOW_PROXYRESOURCE = 391,
-     SHOW_PROXYCONGESTION = 392,
-     SHOW_PROXYROUTE = 393,
-     PARTITION = 394,
-     ROUTINE = 395,
-     SHOW_PROXYVIP = 396,
-     SHOW_PROXYMEMORY = 397,
-     OBJPOOL = 398,
-     SHOW_SQLAUDIT = 399,
-     SHOW_WARNLOG = 400,
-     SHOW_PROXYSTAT = 401,
-     REFRESH = 402,
-     SHOW_PROXYTRACE = 403,
-     SHOW_PROXYINFO = 404,
-     BINARY = 405,
-     UPGRADE = 406,
-     IDC = 407,
-     SHOW_TOPOLOGY = 408,
-     GROUP_NAME = 409,
-     SHOW_DB_VERSION = 410,
-     SHOW_DATABASES = 411,
-     SHOW_TABLES = 412,
-     SHOW_FULL_TABLES = 413,
-     SELECT_DATABASE = 414,
-     SHOW_CREATE_TABLE = 415,
-     SELECT_PROXY_VERSION = 416,
-     SHOW_COLUMNS = 417,
-     SHOW_INDEX = 418,
-     ALTER_PROXYCONFIG = 419,
-     ALTER_PROXYRESOURCE = 420,
-     PING_PROXY = 421,
-     KILL_PROXYSESSION = 422,
-     KILL_GLOBALSESSION = 423,
-     KILL = 424,
-     QUERY = 425
+     STICKY_SESSION = 370,
+     PARALL = 371,
+     SHARD_KEY = 372,
+     INT_NUM = 373,
+     SHOW_PROXYNET = 374,
+     THREAD = 375,
+     CONNECTION = 376,
+     LIMIT = 377,
+     OFFSET = 378,
+     SHOW_PROCESSLIST = 379,
+     SHOW_PROXYSESSION = 380,
+     SHOW_GLOBALSESSION = 381,
+     ATTRIBUTE = 382,
+     VARIABLES = 383,
+     ALL = 384,
+     STAT = 385,
+     SHOW_PROXYCONFIG = 386,
+     DIFF = 387,
+     USER = 388,
+     LIKE = 389,
+     SHOW_PROXYSM = 390,
+     SHOW_PROXYCLUSTER = 391,
+     SHOW_PROXYRESOURCE = 392,
+     SHOW_PROXYCONGESTION = 393,
+     SHOW_PROXYROUTE = 394,
+     PARTITION = 395,
+     ROUTINE = 396,
+     SHOW_PROXYVIP = 397,
+     SHOW_PROXYMEMORY = 398,
+     OBJPOOL = 399,
+     SHOW_SQLAUDIT = 400,
+     SHOW_WARNLOG = 401,
+     SHOW_PROXYSTAT = 402,
+     REFRESH = 403,
+     SHOW_PROXYTRACE = 404,
+     SHOW_PROXYINFO = 405,
+     BINARY = 406,
+     UPGRADE = 407,
+     IDC = 408,
+     SHOW_ELASTIC_ID = 409,
+     SHOW_TOPOLOGY = 410,
+     GROUP_NAME = 411,
+     SHOW_DB_VERSION = 412,
+     SHOW_DATABASES = 413,
+     SHOW_TABLES = 414,
+     SHOW_FULL_TABLES = 415,
+     SELECT_DATABASE = 416,
+     SHOW_CREATE_TABLE = 417,
+     SELECT_PROXY_VERSION = 418,
+     SHOW_COLUMNS = 419,
+     SHOW_INDEX = 420,
+     ALTER_PROXYCONFIG = 421,
+     ALTER_PROXYRESOURCE = 422,
+     PING_PROXY = 423,
+     KILL_PROXYSESSION = 424,
+     KILL_GLOBALSESSION = 425,
+     KILL = 426,
+     QUERY = 427,
+     SHOW_MASTER_STATUS = 428,
+     SHOW_BINARY_LOGS = 429,
+     SHOW_BINLOG_EVENTS = 430,
+     PURGE_BINARY_LOGS = 431,
+     RESET_MASTER = 432,
+     SHOW_BINLOG_SERVER_FOR_TENANT = 433
    };
 #endif
 
diff --git a/src/obproxy/optimizer/ob_sharding_select_log_plan.cpp b/src/obproxy/optimizer/ob_sharding_select_log_plan.cpp
index b5c667c0..3c3a654b 100644
--- a/src/obproxy/optimizer/ob_sharding_select_log_plan.cpp
+++ b/src/obproxy/optimizer/ob_sharding_select_log_plan.cpp
@@ -155,7 +155,7 @@ int ObShardingSelectLogPlan::do_handle_avg_expr(ObProxyExprAvg *agg_expr, T *&ex
       MEMCPY(buf, sql_string.ptr(), sql_string.length());
       expr->set_expr_name(buf, sql_string.length());
       if (OB_FAIL(handle_derived(expr))) {
-       LOG_WARN("fail to handle derived", K(ret));
+        LOG_WARN("fail to handle derived", K(ret));
       }
     }
   }
@@ -490,8 +490,8 @@ int ObShardingSelectLogPlan::handle_derived(ObProxyExpr *expr, bool column_first
     ObProxyExprType expr_type = expr->get_expr_type();
 
     if (OB_PROXY_EXPR_TYPE_COLUMN == expr_type || OB_PROXY_EXPR_TYPE_SHARDING_CONST == expr_type || expr->is_func_expr()) {
-      ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(client_request_.get_parse_result().get_proxy_stmt());
-      ObIArray<ObProxyExpr*> &select_expr_array = select_stmt->select_exprs_;
+      ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(client_request_.get_parse_result().get_proxy_stmt());
+      ObIArray<ObProxyExpr*> &select_expr_array = dml_stmt->select_exprs_;
 
       // Priority is given to finding derived columns, all derived columns have aliases and can be uniquely located
       if (bret && do_need_derived(derived_exprs_, expr, column_first, bret)) {
@@ -572,8 +572,8 @@ int ObShardingSelectLogPlan::analyze_group_by_clause()
 {
   int ret = OB_SUCCESS;
 
-  ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(client_request_.get_parse_result().get_proxy_stmt());
-  ObIArray<ObProxyGroupItem*> &group_by_exprs = select_stmt->group_by_exprs_;
+  ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(client_request_.get_parse_result().get_proxy_stmt());
+  ObIArray<ObProxyGroupItem*> &group_by_exprs = dml_stmt->group_by_exprs_;
 
   for (int64_t i = 0; OB_SUCC(ret) && i < group_by_exprs.count(); i++) {
     ObProxyGroupItem *group_item = dynamic_cast<ObProxyGroupItem *>(group_by_exprs.at(i));
@@ -596,8 +596,8 @@ int ObShardingSelectLogPlan::analyze_order_by_clause()
 {
   int ret = OB_SUCCESS;
 
-  ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(client_request_.get_parse_result().get_proxy_stmt());
-  ObIArray<ObProxyOrderItem*> &order_by_exprs = select_stmt->order_by_exprs_;
+  ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(client_request_.get_parse_result().get_proxy_stmt());
+  ObIArray<ObProxyOrderItem*> &order_by_exprs = dml_stmt->order_by_exprs_;
 
   for (int64_t i = 0; OB_SUCC(ret) && i < order_by_exprs.count(); i++) {
     ObProxyOrderItem *order_item = dynamic_cast<ObProxyOrderItem *>(order_by_exprs.at(i));
@@ -619,8 +619,8 @@ int ObShardingSelectLogPlan::analyze_order_by_clause()
 int ObShardingSelectLogPlan::analyze_select_clause()
 {
   int ret = OB_SUCCESS;
-  ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(client_request_.get_parse_result().get_proxy_stmt());
-  ObIArray<ObProxyExpr*> &select_expr_array = select_stmt->select_exprs_;
+  ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(client_request_.get_parse_result().get_proxy_stmt());
+  ObIArray<ObProxyExpr*> &select_expr_array = dml_stmt->select_exprs_;
 
   for (int64_t i = 0; OB_SUCC(ret) && i < select_expr_array.count(); i++) {
     ObProxyExpr *select_expr = select_expr_array.at(i);
@@ -636,9 +636,9 @@ int ObShardingSelectLogPlan::append_derived_order_by(bool &is_same_group_and_ord
 {
   int ret = OB_SUCCESS;
 
-  ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(client_request_.get_parse_result().get_proxy_stmt());
-  ObIArray<ObProxyGroupItem*> &group_by_exprs = select_stmt->group_by_exprs_;
-  ObIArray<ObProxyOrderItem*> &order_by_exprs = select_stmt->order_by_exprs_;
+  ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(client_request_.get_parse_result().get_proxy_stmt());
+  ObIArray<ObProxyGroupItem*> &group_by_exprs = dml_stmt->group_by_exprs_;
+  ObIArray<ObProxyOrderItem*> &order_by_exprs = dml_stmt->order_by_exprs_;
 
   if (!group_by_exprs.empty() && order_by_exprs.empty()) {
     is_same_group_and_order = true;
@@ -680,28 +680,28 @@ int ObShardingSelectLogPlan::append_derived_order_by(bool &is_same_group_and_ord
 int ObShardingSelectLogPlan::rewrite_sql(ObSqlString &new_sql)
 {
   int ret = OB_SUCCESS;
-  ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(client_request_.get_parse_result().get_proxy_stmt());
+  ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(client_request_.get_parse_result().get_proxy_stmt());
   ObString sql = client_request_.get_sql();
 
   if (derived_columns_.empty() && derived_orders_.empty()
-      && (select_stmt->limit_size_ == -1 || select_stmt->limit_size_ == 0)) {
+      && (dml_stmt->limit_size_ == -1 || dml_stmt->limit_size_ == 0)) {
     new_sql.append(sql);
   } else {
     const char *sql_ptr = sql.ptr();
     int64_t sql_len = sql.length();
 
     if (derived_columns_.empty() && derived_orders_.empty()) {
-      int64_t limit_position = select_stmt->limit_token_off_;
+      int64_t limit_position = dml_stmt->limit_token_off_;
       new_sql.append(sql_ptr, limit_position);
       new_sql.append("LIMIT ");
-      if (select_stmt->limit_size_ == 0) {
-        new_sql.append_fmt("%d", select_stmt->limit_size_);
+      if (dml_stmt->limit_size_ == 0) {
+        new_sql.append_fmt("%d", dml_stmt->limit_size_);
       } else {
-        new_sql.append_fmt("%d", select_stmt->limit_offset_ + select_stmt->limit_size_);
+        new_sql.append_fmt("%d", dml_stmt->limit_offset_ + dml_stmt->limit_size_);
       }
     } else {
-      int64_t from_position = select_stmt->get_from_token_off();
-      int64_t limit_position = select_stmt->limit_token_off_;
+      int64_t from_position = dml_stmt->get_from_token_off();
+      int64_t limit_position = dml_stmt->limit_token_off_;
       new_sql.append(sql_ptr, from_position);
 
       if (!derived_columns_.empty()) {
@@ -747,10 +747,10 @@ int ObShardingSelectLogPlan::rewrite_sql(ObSqlString &new_sql)
 
       if (limit_position > 0) {
         new_sql.append("LIMIT ");
-        if (select_stmt->limit_size_ == 0) {
-          new_sql.append_fmt("%d", select_stmt->limit_size_);
+        if (dml_stmt->limit_size_ == 0) {
+          new_sql.append_fmt("%d", dml_stmt->limit_size_);
         } else {
-          new_sql.append_fmt("%d", select_stmt->limit_offset_ + select_stmt->limit_size_);
+          new_sql.append_fmt("%d", dml_stmt->limit_offset_ + dml_stmt->limit_size_);
         }
       }
     }
@@ -764,8 +764,8 @@ int ObShardingSelectLogPlan::add_agg_operator(bool need_set_limit)
 {
   int ret = OB_SUCCESS;
 
-  ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(client_request_.get_parse_result().get_proxy_stmt());
-  ObIArray<ObProxyGroupItem*> &group_by_exprs = select_stmt->group_by_exprs_;
+  ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(client_request_.get_parse_result().get_proxy_stmt());
+  ObIArray<ObProxyGroupItem*> &group_by_exprs = dml_stmt->group_by_exprs_;
 
   T *agg_operator = NULL;
   ObProxyAggInput *agg_input = NULL;
@@ -779,8 +779,8 @@ int ObShardingSelectLogPlan::add_agg_operator(bool need_set_limit)
     LOG_WARN("set child failed", K(ret));
   } else {
     if (need_set_limit) {
-      agg_input->set_limit_offset(select_stmt->limit_offset_);
-      agg_input->set_limit_size(select_stmt->limit_size_);
+      agg_input->set_limit_offset(dml_stmt->limit_offset_);
+      agg_input->set_limit_size(dml_stmt->limit_size_);
       is_set_limit_ = true;
     }
     plan_root_ = agg_operator;
@@ -816,8 +816,8 @@ int ObShardingSelectLogPlan::add_sort_operator(bool need_set_limit)
 {
   int ret = OB_SUCCESS;
 
-  ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(client_request_.get_parse_result().get_proxy_stmt());
-  ObIArray<ObProxyOrderItem*> &order_by_exprs = select_stmt->order_by_exprs_;
+  ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(client_request_.get_parse_result().get_proxy_stmt());
+  ObIArray<ObProxyOrderItem*> &order_by_exprs = dml_stmt->order_by_exprs_;
 
   T *sort_operator = NULL;
   ObProxySortInput *sort_input = NULL;
@@ -829,8 +829,8 @@ int ObShardingSelectLogPlan::add_sort_operator(bool need_set_limit)
     LOG_WARN("set child failed", K(ret));
   } else {
     if (need_set_limit) {
-      sort_input->set_limit_offset(select_stmt->limit_offset_);
-      sort_input->set_limit_size(select_stmt->limit_size_);
+      sort_input->set_limit_offset(dml_stmt->limit_offset_);
+      sort_input->set_limit_size(dml_stmt->limit_size_);
       is_set_limit_ = true;
     }
     plan_root_ = sort_operator;
@@ -865,9 +865,9 @@ int ObShardingSelectLogPlan::add_agg_and_sort_operator(bool is_same_group_and_or
 {
   int ret = OB_SUCCESS;
 
-  ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(client_request_.get_parse_result().get_proxy_stmt());
-  ObIArray<ObProxyGroupItem*> &group_by_exprs = select_stmt->group_by_exprs_;
-  ObIArray<ObProxyOrderItem*> &order_by_exprs = select_stmt->order_by_exprs_;
+  ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(client_request_.get_parse_result().get_proxy_stmt());
+  ObIArray<ObProxyGroupItem*> &group_by_exprs = dml_stmt->group_by_exprs_;
+  ObIArray<ObProxyOrderItem*> &order_by_exprs = dml_stmt->order_by_exprs_;
 
   if (!group_by_exprs.empty() || !agg_exprs_.empty()) {
     if (!is_same_group_and_order) {
@@ -908,7 +908,7 @@ int ObShardingSelectLogPlan::add_table_scan_operator(ObIArray<dbconfig::ObShardC
   int ret = OB_SUCCESS;
   const uint32_t PARSE_EXTRA_CHAR_NUM = 2;
 
-  ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(client_request_.get_parse_result().get_proxy_stmt());
+  ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(client_request_.get_parse_result().get_proxy_stmt());
   ObProxyTableScanOp *table_scan_op = NULL;
   ObProxyTableScanInput *table_scan_input = NULL;
   char *buf = NULL;
@@ -920,7 +920,7 @@ int ObShardingSelectLogPlan::add_table_scan_operator(ObIArray<dbconfig::ObShardC
   } else {
     MEMCPY(buf, new_sql.ptr(), new_sql.length());
     MEMSET(buf + new_sql.length(), '\0', PARSE_EXTRA_CHAR_NUM);
-    ObString request_sql(new_sql.length() + PARSE_EXTRA_CHAR_NUM, buf);
+    ObString request_sql(new_sql.length(), buf);
     if (OB_FAIL(table_scan_input->set_db_key_names(shard_connector_array))) {
       LOG_WARN("fail to set db key name", K(ret));
     } else if (OB_FAIL(table_scan_input->set_shard_props(shard_prop_array))) {
@@ -931,9 +931,9 @@ int ObShardingSelectLogPlan::add_table_scan_operator(ObIArray<dbconfig::ObShardC
       LOG_WARN("fail to set calc expr", K(ret));
     } else if (OB_FAIL(table_scan_input->set_agg_exprs(agg_exprs_))) {
       LOG_WARN("fail to set agg expr", K(ret));
-    } else if (OB_FAIL(table_scan_input->set_group_exprs(select_stmt->group_by_exprs_))) {
+    } else if (OB_FAIL(table_scan_input->set_group_exprs(dml_stmt->group_by_exprs_))) {
       LOG_WARN("fail to set group exprs", K(ret));
-    } else if (OB_FAIL(table_scan_input->set_order_exprs(select_stmt->order_by_exprs_))) {
+    } else if (OB_FAIL(table_scan_input->set_order_exprs(dml_stmt->order_by_exprs_))) {
       LOG_WARN("fail to set order exprs", K(ret));
     } else {
       table_scan_input->set_request_sql(request_sql);
@@ -948,7 +948,7 @@ int ObShardingSelectLogPlan::add_table_scan_operator(ObIArray<dbconfig::ObShardC
 int ObShardingSelectLogPlan::add_projection_operator()
 {
   int ret = OB_SUCCESS;
-  ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(client_request_.get_parse_result().get_proxy_stmt());
+  ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(client_request_.get_parse_result().get_proxy_stmt());
 
   ObProxyProOp *op = NULL;
   ObProxyProInput *input = NULL;
@@ -959,8 +959,8 @@ int ObShardingSelectLogPlan::add_projection_operator()
     input->set_calc_exprs(calc_exprs_);
     input->set_derived_column_count(derived_column_count_);
     if (!is_set_limit_) {
-      input->set_limit_offset(select_stmt->limit_offset_);
-      input->set_limit_size(select_stmt->limit_size_);
+      input->set_limit_offset(dml_stmt->limit_offset_);
+      input->set_limit_size(dml_stmt->limit_size_);
       is_set_limit_ = true;
     }
     if (OB_FAIL(op->set_child(0, plan_root_))) {
@@ -977,9 +977,9 @@ int ObShardingSelectLogPlan::compare_group_and_order(bool &is_same_group_and_ord
 {
   int ret = OB_SUCCESS;
 
-  ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(client_request_.get_parse_result().get_proxy_stmt());
-  ObIArray<ObProxyGroupItem*> &group_by_exprs = select_stmt->group_by_exprs_;
-  ObIArray<ObProxyOrderItem*> &order_by_exprs = select_stmt->order_by_exprs_;
+  ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(client_request_.get_parse_result().get_proxy_stmt());
+  ObIArray<ObProxyGroupItem*> &group_by_exprs = dml_stmt->group_by_exprs_;
+  ObIArray<ObProxyOrderItem*> &order_by_exprs = dml_stmt->order_by_exprs_;
 
   if (!group_by_exprs.empty() && !order_by_exprs.empty()
       && group_by_exprs.count() == order_by_exprs.count()) {
diff --git a/src/obproxy/packet/ob_mysql_packet_reader.cpp b/src/obproxy/packet/ob_mysql_packet_reader.cpp
index d4800d9a..d28ba1ba 100644
--- a/src/obproxy/packet/ob_mysql_packet_reader.cpp
+++ b/src/obproxy/packet/ob_mysql_packet_reader.cpp
@@ -12,7 +12,6 @@
 
 #define USING_LOG_PREFIX PROXY
 #include "packet/ob_mysql_packet_reader.h"
-#include "rpc/obmysql/ob_mysql_util.h"
 #include "rpc/obmysql/packet/ompk_ok.h"
 
 using namespace oceanbase::common;
@@ -111,20 +110,20 @@ inline int ObMysqlPacketReader::get_buf(ObIOBufferReader &buf_reader, const int6
   return ret;
 }
 
-inline int ObMysqlPacketReader::get_content_len_and_seq(ObIOBufferReader &buf_reader,
-                             const int64_t offset, int64_t &content_len, uint8_t &seq)
+int ObMysqlPacketReader::is_eof_packet(ObIOBufferReader &buf_reader, const int64_t offset, bool &is_eof) 
 {
   int ret = OB_SUCCESS;
   char *pbuf = NULL;
-  if (OB_FAIL(get_buf(buf_reader, OB_MYSQL_NET_HEADER_LENGTH, offset, pbuf))) {
+  is_eof = false;
+  if (OB_FAIL(get_buf(buf_reader, proxy::MYSQL_NET_META_LENGTH, offset, pbuf))) {
     LOG_WARN("fail to get header buf", K(ret));
   } else if (OB_ISNULL(pbuf)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("pbuf is null, which is unexpected", K(pbuf), K(ret));
   } else {
-    content_len = static_cast<int64_t>(uint3korr(pbuf));
-    seq = static_cast<int64_t>(uint1korr(pbuf + 3));
-  }
+    int64_t eof = static_cast<int64_t>(uint1korr(pbuf + 4));
+    is_eof = (proxy::MYSQL_EOF_PACKET_TYPE == eof);
+  } 
   return ret;
 }
 
@@ -191,12 +190,18 @@ int ObMysqlPacketReader::get_ok_packet_server_status(ObIOBufferReader &buf_reade
 
 int ObMysqlPacketReader::get_packet(ObIOBufferReader &buf_reader,
                                     ObMySQLPacket &packet)
+{
+  return get_packet(buf_reader, 0, packet);
+}
+
+int ObMysqlPacketReader::get_packet(ObIOBufferReader &buf_reader,
+                                    const int64_t offset,
+                                    ObMySQLPacket &packet)
 {
   int ret = OB_SUCCESS;
   char *content_buf = NULL;
   int64_t content_len = 0;
   uint8_t seq = 0;
-  int64_t offset = 0;
   if (OB_FAIL(get_content_len_and_seq(buf_reader, offset, content_len, seq))) {
     LOG_WARN("fail to get content length and seq", K(content_len), K(seq), K(offset), K(ret));
   } else if (OB_FAIL(get_buf(buf_reader, content_len, offset + OB_MYSQL_NET_HEADER_LENGTH, content_buf))) {
diff --git a/src/obproxy/packet/ob_mysql_packet_reader.h b/src/obproxy/packet/ob_mysql_packet_reader.h
index 75dadab0..a95758e3 100644
--- a/src/obproxy/packet/ob_mysql_packet_reader.h
+++ b/src/obproxy/packet/ob_mysql_packet_reader.h
@@ -15,6 +15,8 @@
 
 #include "utils/ob_proxy_lib.h"
 #include "iocore/eventsystem/ob_io_buffer.h"
+#include "proxy/mysqllib/ob_mysql_common_define.h"
+#include "rpc/obmysql/ob_mysql_util.h"
 
 namespace oceanbase
 {
@@ -44,6 +46,8 @@ class ObMysqlPacketReader
   // === GET function will not comsume the packet
   int get_content_len_and_seq(event::ObIOBufferReader &buf_reader, const int64_t offset, int64_t &content_len, uint8_t &seq);
 
+  int is_eof_packet(event::ObIOBufferReader &buf_reader, const int64_t offset, bool &is_eof);
+
   // DESC: get the next ok packet from MIOBuffer
   // NOTE: 1. get function will NOT consume buffer as packet may hold some string int mio_buf
   //       2. if mio_buf.consume or reader.reset is called, do NOT use the packet any more
@@ -71,6 +75,9 @@ class ObMysqlPacketReader
                     obmysql::OMPKOK &ok_pkt);
   int get_packet(event::ObIOBufferReader &buf_reader,
                  obmysql::ObMySQLPacket &packet);
+  int get_packet(event::ObIOBufferReader &buf_reader,
+                 const int64_t offset,
+                 obmysql::ObMySQLPacket &packet);
   int get_ok_packet_server_status(event::ObIOBufferReader &buf_reader,
                                   obmysql::ObServerStatusFlags &server_status);
   // === READ function will comsume the packet
@@ -134,6 +141,26 @@ inline int ObMysqlPacketReader::read_packet_str(event::ObIOBufferReader &buf_rea
   return ret;
 }
 
+inline int ObMysqlPacketReader::get_content_len_and_seq(event::ObIOBufferReader &buf_reader,
+                                                        const int64_t offset, 
+                                                        int64_t &content_len, 
+                                                        uint8_t &seq)
+{
+  int ret = OB_SUCCESS;
+  char *pbuf = NULL;
+  if (OB_FAIL(get_buf(buf_reader, OB_MYSQL_NET_HEADER_LENGTH, offset, pbuf))) {
+    PROXY_LOG(WARN, "fail to get header buf", K(ret));
+  } else if (OB_ISNULL(pbuf)) {
+    ret = OB_ERR_UNEXPECTED;
+    PROXY_LOG(WARN, "pbuf is null, which is unexpected", K(pbuf), K(ret));
+  } else {
+    content_len = static_cast<int64_t>(uint3korr(pbuf));
+    seq = static_cast<int64_t>(uint1korr(pbuf + 3));
+  }
+
+  return ret;
+}
+
 } // end of namespace packet
 } // end of namespace obproxy
 } // end of namespace oceanbase
diff --git a/src/obproxy/packet/ob_mysql_packet_util.cpp b/src/obproxy/packet/ob_mysql_packet_util.cpp
index 6fe455e8..74eb479c 100644
--- a/src/obproxy/packet/ob_mysql_packet_util.cpp
+++ b/src/obproxy/packet/ob_mysql_packet_util.cpp
@@ -72,14 +72,36 @@ int ObMysqlPacketUtil::encode_header(ObMIOBuffer &write_buf,
   return ret;
 }
 
+int ObMysqlPacketUtil::encode_field_packet(ObMIOBuffer &write_buf,
+                                           uint8_t &seq,
+                                           ObMySQLField &field) {
+  int ret = OB_SUCCESS;
+  OMPKField field_packet(field);
+  field_packet.set_seq(seq++);
+  if (OB_FAIL(ObMysqlPacketWriter::write_field_packet(write_buf, field_packet))) {
+    LOG_WARN("fail to write field", K(field_packet), K(field), K(ret));
+    --seq;
+  }
+  return ret;
+}
+
 int ObMysqlPacketUtil::encode_row_packet(ObMIOBuffer &write_buf,
                                          uint8_t &seq,
                                          const ObNewRow &row,
                                          ObIArray<ObField> *fields)
+{
+  return encode_row_packet(write_buf, TEXT, seq, row, fields);
+}
+
+int ObMysqlPacketUtil::encode_row_packet(ObMIOBuffer &write_buf,
+                                         MYSQL_PROTOCOL_TYPE protocol_type,
+                                         uint8_t &seq,
+                                         const ObNewRow &row,
+                                         ObIArray<ObField> *fields)
 {
   int ret = OB_SUCCESS;
 
-  ObSMRow sm_row(TEXT, row, NULL, fields);
+  ObSMRow sm_row(protocol_type, row, NULL, fields);
   OMPKRow row_packet(sm_row);
   row_packet.set_seq(seq++);
 
@@ -108,99 +130,6 @@ int ObMysqlPacketUtil::encode_eof_packet(ObMIOBuffer &write_buf,
   return ret;
 }
 
-int ObMysqlPacketUtil::encode_executor_response_packet(ObMIOBuffer *write_buf, uint8_t &seq,
-                                                       engine::ObProxyResultResp *result_resp)
-{
-  int ret = OB_SUCCESS;
-
-  int64_t column_count = result_resp->get_column_count();
-  ObSEArray<ObMySQLField, 1, common::ObIAllocator&> *fields = NULL;
-  ObSEArray<ObField, 4> ob_fields;
-
-  // header , cols , first eof
-  if (OB_SUCC(ret)) {
-    if (OB_FAIL(result_resp->get_fields(fields))) {
-      LOG_WARN("faild to push field", K(fields), K(ret));
-    } else if (OB_ISNULL(fields)) {
-      ret = OB_ERR_UNEXPECTED;
-      LOG_WARN("fields should not be null", K(ret));
-    } else if (OB_UNLIKELY(fields->count() != column_count)) {
-      ret = OB_ERR_UNEXPECTED;
-      LOG_WARN("fields count should equal column_count", K(column_count), "fileds count", fields->count(), K(ret));
-    } else if (OB_FAIL(ObMysqlPacketUtil::encode_header(*write_buf, seq, *fields))) {
-      LOG_WARN("faild to encode header", K(fields), K(seq), K(ret));
-    } else {
-      for (int64_t i = 0; OB_SUCC(ret) && i < column_count; i++) {
-        ObMySQLField &mysql_field = fields->at(i);
-        ObField ob_field;
-        if (OB_FAIL(ObSMUtils::to_ob_field(mysql_field, ob_field))) {
-          LOG_WARN("faild to ob field", K(mysql_field), K(ret));
-        } else if (OB_FAIL(ob_fields.push_back(ob_field))) {
-          LOG_WARN("faild to push ob field", K(ob_field), K(ret));
-        }
-      }
-    }
-  }
-
-  // rows
-  if (OB_SUCC(ret)) {
-    ObObj *objs = NULL;
-    int64_t buf_len = sizeof(ObObj) * column_count;
-
-    if (OB_ISNULL(objs = static_cast<ObObj *>(op_fixed_mem_alloc(buf_len)))) {
-      ret = OB_ERR_UNEXPECTED;
-      LOG_WARN("faild to alloc obj array", K(column_count), K(ret));
-    } else {
-      ObNewRow row;
-      //ObSEArray<common::ObObj, 4> *row_array;
-      ObSEArray<common::ObObj*, 4, common::ObIAllocator&> *row_array;
-      while ((OB_SUCC(ret)) && (OB_SUCC(result_resp->next(row_array)))) {
-        if (OB_ISNULL(row_array)) {
-          ret = OB_ERR_UNEXPECTED;
-          LOG_WARN("row_array should not be null", K(ret));
-        } else if (OB_UNLIKELY(row_array->count() != column_count)) {
-          ret = OB_ERR_UNEXPECTED;
-          LOG_WARN("row_array count should equal column_count", K(column_count),
-                   "row_array count", row_array->count(), K(ret));
-        }
-
-        for (int64_t i = 0; OB_SUCC(ret) && i < column_count; i++) {
-          objs[i] = *(row_array->at(i));
-        }
-
-        if (OB_SUCC(ret)) {
-          row.cells_ = objs;
-          row.count_ = column_count;
-          if (OB_FAIL(ObMysqlPacketUtil::encode_row_packet(*write_buf, seq, row, &ob_fields))) {
-            LOG_WARN("faild to encode row", K(seq), K(row), K(ret));
-          } else {
-            row.reset();
-            row_array = NULL;
-          }
-        }
-      }
-
-      if (OB_ITER_END == ret) {
-        ret = OB_SUCCESS;
-      }
-    }
-
-    if (OB_NOT_NULL(objs)) {
-      op_fixed_mem_free(objs, buf_len);
-      objs = NULL;
-    }
-  }
-
-  // second eof
-  if (OB_SUCC(ret)) {
-    if (OB_FAIL(ObMysqlPacketUtil::encode_eof_packet(*write_buf, seq))) {
-      LOG_WARN("faild to encode row", K(seq), K(ret));
-    }
-  }
-
-  return ret;
-}
-
 int ObMysqlPacketUtil::encode_err_packet(ObMIOBuffer &write_buf, uint8_t &seq, const int errcode, const char *msg_buf)
 {
   return encode_err_packet(write_buf, seq, errcode, ObString::make_string(msg_buf));
diff --git a/src/obproxy/packet/ob_mysql_packet_util.h b/src/obproxy/packet/ob_mysql_packet_util.h
index f9cc349d..2073997e 100644
--- a/src/obproxy/packet/ob_mysql_packet_util.h
+++ b/src/obproxy/packet/ob_mysql_packet_util.h
@@ -47,13 +47,20 @@ class ObMysqlPacketUtil
   static int encode_header(event::ObMIOBuffer &write_buf, uint8_t &seq,
                            common::ObIArray<obmysql::ObMySQLField> &fields,
                            uint16_t status_flag = 0);
-  static int encode_row_packet(event::ObMIOBuffer &write_buf, uint8_t &seq,
+  static int encode_field_packet(event::ObMIOBuffer &write_buf,
+                                 uint8_t &seq,
+                                 obmysql::ObMySQLField &field);
+  static int encode_row_packet(event::ObMIOBuffer &write_buf,
+                               uint8_t &seq,
+                               const common::ObNewRow &row,
+                               common::ObIArray<common::ObField> *fields = NULL);
+  static int encode_row_packet(event::ObMIOBuffer &write_buf,
+                               obmysql::MYSQL_PROTOCOL_TYPE protocol_type,
+                               uint8_t &seq,
                                const common::ObNewRow &row,
                                common::ObIArray<common::ObField> *fields = NULL);
   static int encode_eof_packet(event::ObMIOBuffer &write_buf, uint8_t &seq,
                                uint16_t status_flag = 0);
-  static int encode_executor_response_packet(event::ObMIOBuffer *write_buf, uint8_t &seq,
-                                             engine::ObProxyResultResp *result_resp);
 
   static int encode_err_packet(event::ObMIOBuffer &write_buf, uint8_t &seq, const int errcode, const char *msg_buf);
 
diff --git a/src/obproxy/packet/ob_proxy_packet_writer.cpp b/src/obproxy/packet/ob_proxy_packet_writer.cpp
index f879d1b7..d5d1a108 100644
--- a/src/obproxy/packet/ob_proxy_packet_writer.cpp
+++ b/src/obproxy/packet/ob_proxy_packet_writer.cpp
@@ -35,18 +35,20 @@ namespace obproxy
 namespace packet
 {
 
-int ObProxyPacketWriter::write_packet(event::ObMIOBuffer &write_buf, ObMysqlClientSession &client_session,
+int ObProxyPacketWriter::write_packet(event::ObMIOBuffer &write_buf,
+                                      ObMysqlClientSession &client_session,
+                                      const ObProxyProtocol protocol,
                                       obmysql::ObMySQLPacket &packet)
 {
   int ret = OB_SUCCESS;
-  ObProxyProtocol protocol = client_session.get_client_session_protocol();
-    
+
   if (protocol == ObProxyProtocol::PROTOCOL_OB20) {
     Ob20ProtocolHeader &ob20_head = client_session.get_session_info().ob20_request_.ob20_header_;
     uint8_t compressed_seq = static_cast<uint8_t>(client_session.get_compressed_seq() + 1);
     Ob20ProtocolHeaderParam ob20_head_param(client_session.get_cs_id(), ob20_head.request_id_, compressed_seq,
-                                            compressed_seq, true, false,
-                                            client_session.is_client_support_new_extra_info());
+                                            compressed_seq, true, false, false,
+                                            client_session.is_client_support_new_extra_info(),
+                                            client_session.is_trans_internal_routing());
     if (OB_FAIL(ObMysqlOB20PacketWriter::write_packet(write_buf, packet, ob20_head_param))) {
       LOG_WARN("fail to write ob20 packet", K(ret));
     } else {
@@ -61,18 +63,20 @@ int ObProxyPacketWriter::write_packet(event::ObMIOBuffer &write_buf, ObMysqlClie
   return ret;
 }
 
-int ObProxyPacketWriter::write_raw_packet(event::ObMIOBuffer &write_buf, ObMysqlClientSession &client_session,
+int ObProxyPacketWriter::write_raw_packet(event::ObMIOBuffer &write_buf,
+                                          ObMysqlClientSession &client_session,
+                                          const ObProxyProtocol protocol,
                                           ObString &pkt_str)
 {
   int ret = OB_SUCCESS;
-  ObProxyProtocol client_protocol = client_session.get_client_session_protocol();
 
-  if (client_protocol == ObProxyProtocol::PROTOCOL_OB20) {
+  if (protocol == ObProxyProtocol::PROTOCOL_OB20) {
     Ob20ProtocolHeader &ob20_head = client_session.get_session_info().ob20_request_.ob20_header_;
     uint8_t compressed_seq = static_cast<uint8_t>(client_session.get_compressed_seq() + 1);
     Ob20ProtocolHeaderParam ob20_head_param(client_session.get_cs_id(), ob20_head.request_id_,
-                                            compressed_seq, compressed_seq, true, false,
-                                            client_session.is_client_support_new_extra_info());
+                                            compressed_seq, compressed_seq, true, false, false,
+                                            client_session.is_client_support_new_extra_info(),
+                                            client_session.is_trans_internal_routing());
     if (OB_FAIL(ObMysqlOB20PacketWriter::write_raw_packet(write_buf, pkt_str, ob20_head_param))) {
       LOG_WARN("fail to write raw packet in ob20 format", K(ret));
     } else {
@@ -87,19 +91,23 @@ int ObProxyPacketWriter::write_raw_packet(event::ObMIOBuffer &write_buf, ObMysql
   return ret;
 }
 
-int ObProxyPacketWriter::write_kv_resultset(event::ObMIOBuffer &write_buf, ObMysqlClientSession &client_session,
-                                            uint8_t &seq, const obmysql::ObMySQLField &field, ObObj &field_value,
+int ObProxyPacketWriter::write_kv_resultset(event::ObMIOBuffer &write_buf,
+                                            ObMysqlClientSession &client_session,
+                                            const ObProxyProtocol protocol,
+                                            uint8_t &seq,
+                                            const obmysql::ObMySQLField &field,
+                                            ObObj &field_value,
                                             const uint16_t status_flag)
 {
   int ret = OB_SUCCESS;
-  ObProxyProtocol client_protocol = client_session.get_client_session_protocol();
 
-  if (client_protocol == ObProxyProtocol::PROTOCOL_OB20) {
+  if (protocol == ObProxyProtocol::PROTOCOL_OB20) {
     Ob20ProtocolHeader &ob20_head = client_session.get_session_info().ob20_request_.ob20_header_;
     uint8_t compressed_seq = static_cast<uint8_t>(client_session.get_compressed_seq() + 1);
     Ob20ProtocolHeaderParam ob20_head_param(client_session.get_cs_id(), ob20_head.request_id_, compressed_seq,
-                                            compressed_seq, true, false,
-                                            client_session.is_client_support_new_extra_info());
+                                            compressed_seq, true, false, false,
+                                            client_session.is_client_support_new_extra_info(),
+                                            client_session.is_trans_internal_routing());
     if (OB_FAIL(ObProto20Utils::encode_kv_resultset(write_buf, ob20_head_param, seq, field,
                                                     field_value, status_flag))) {
       LOG_WARN("fail to encode kv resultset", K(ret));
@@ -114,19 +122,22 @@ int ObProxyPacketWriter::write_kv_resultset(event::ObMIOBuffer &write_buf, ObMys
   return ret;
 }
 
-int ObProxyPacketWriter::write_ok_packet(event::ObMIOBuffer &write_buf, ObMysqlClientSession &client_session,
-                                         uint8_t &seq, const int64_t affected_rows,
+int ObProxyPacketWriter::write_ok_packet(event::ObMIOBuffer &write_buf,
+                                         ObMysqlClientSession &client_session,
+                                         const ObProxyProtocol protocol,
+                                         uint8_t &seq,
+                                         const int64_t affected_rows,
                                          const obmysql::ObMySQLCapabilityFlags &capability)
 {
   int ret = OB_SUCCESS;
-  ObProxyProtocol protocol = client_session.get_client_session_protocol();
 
   if (protocol == ObProxyProtocol::PROTOCOL_OB20) {
     Ob20ProtocolHeader &ob20_head = client_session.get_session_info().ob20_request_.ob20_header_;
     uint8_t compressed_seq = static_cast<uint8_t>(client_session.get_compressed_seq() + 1);
     Ob20ProtocolHeaderParam ob20_head_param(client_session.get_cs_id(), ob20_head.request_id_, compressed_seq,
-                                            compressed_seq, true, false,
-                                            client_session.is_client_support_new_extra_info());
+                                            compressed_seq, true, false, false,
+                                            client_session.is_client_support_new_extra_info(),
+                                            client_session.is_trans_internal_routing());
     if (OB_FAIL(ObProto20Utils::encode_ok_packet(write_buf, ob20_head_param, seq, affected_rows, capability))) {
       LOG_WARN("fail to encode ok packet in ob20 format", K(ret));
     } else {
@@ -141,31 +152,6 @@ int ObProxyPacketWriter::write_ok_packet(event::ObMIOBuffer &write_buf, ObMysqlC
   return ret;
 }
 
-int ObProxyPacketWriter::write_executor_resp_packet(event::ObMIOBuffer *write_buf,
-                                                    ObMysqlClientSession *client_session, uint8_t &seq,
-                                                    engine::ObProxyResultResp *result_resp)
-{
-  int ret = OB_SUCCESS;
-  ObProxyProtocol client_protocol = client_session->get_client_session_protocol();
-
-  if (client_protocol == ObProxyProtocol::PROTOCOL_OB20) {
-    Ob20ProtocolHeader &ob20_head = client_session->get_session_info().ob20_request_.ob20_header_;
-    uint8_t compressed_seq = static_cast<uint8_t>(client_session->get_compressed_seq() + 1);
-    Ob20ProtocolHeaderParam ob20_head_param(client_session->get_cs_id(), ob20_head.request_id_, compressed_seq,
-                                            compressed_seq, true, false,
-                                            client_session->is_client_support_new_extra_info());
-    if (OB_FAIL(ObProto20Utils::encode_executor_response_packet(write_buf, ob20_head_param, seq, result_resp))) {
-      LOG_WARN("fail to encode executor response ob20 packet", K(ret));
-    }
-  } else {
-    if (OB_FAIL(ObMysqlPacketUtil::encode_executor_response_packet(write_buf, seq, result_resp))) {
-      LOG_WARN("fail to encode executor response packet", K(ret));
-    }
-  }
-
-  return ret;
-}
-
 int ObProxyPacketWriter::get_err_buf(int err_code, char *&buf)
 {
   int ret = OB_SUCCESS;
@@ -195,19 +181,27 @@ int ObProxyPacketWriter::get_err_buf(int err_code, char *&buf)
   return ret;
 }
 
-int ObProxyPacketWriter::write_error_packet(event::ObMIOBuffer &write_buf, proxy::ObMysqlClientSession *client_session,
-                                            uint8_t &seq, const int err_code, const char *msg_buf)
+// build error packet back to client
+int ObProxyPacketWriter::write_error_packet(event::ObMIOBuffer &write_buf,
+                                            proxy::ObMysqlClientSession *client_session,
+                                            const ObProxyProtocol protocol,
+                                            uint8_t &seq,
+                                            const int err_code,
+                                            const char *msg_buf)
 {
-  return write_error_packet(write_buf, client_session, seq, err_code, common::ObString::make_string(msg_buf));  
+  return write_error_packet(write_buf, client_session, protocol, seq, err_code, common::ObString::make_string(msg_buf));
 }
 
-int ObProxyPacketWriter::write_error_packet(event::ObMIOBuffer &write_buf, proxy::ObMysqlClientSession *client_session,
-                                            uint8_t &seq, const int err_code, const ObString &msg_buf)
+int ObProxyPacketWriter::write_error_packet(event::ObMIOBuffer &write_buf,
+                                            proxy::ObMysqlClientSession *client_session,
+                                            const ObProxyProtocol protocol,
+                                            uint8_t &seq,
+                                            const int err_code,
+                                            const ObString &msg_buf)
 {
   int ret = OB_SUCCESS;
-  ObProxyProtocol client_protocol = client_session->get_client_session_protocol();
 
-  if (client_protocol == ObProxyProtocol::PROTOCOL_OB20) {
+  if (protocol == ObProxyProtocol::PROTOCOL_OB20) {
     if (OB_ISNULL(client_session)) {
       ret = OB_INVALID_ARGUMENT;
       LOG_WARN("invalid client session ptr in ob20 mode", K(ret));
@@ -215,8 +209,9 @@ int ObProxyPacketWriter::write_error_packet(event::ObMIOBuffer &write_buf, proxy
       Ob20ProtocolHeader &ob20_head = client_session->get_session_info().ob20_request_.ob20_header_;
       uint8_t compressed_seq = static_cast<uint8_t>(client_session->get_compressed_seq() + 1);
       Ob20ProtocolHeaderParam ob20_head_param(client_session->get_cs_id(), ob20_head.request_id_, 
-                                              compressed_seq, compressed_seq, true, false,
-                                              client_session->is_client_support_new_extra_info());
+                                              compressed_seq, compressed_seq, true, false, false,
+                                              client_session->is_client_support_new_extra_info(),
+                                              client_session->is_trans_internal_routing());
       if (OB_FAIL(ObProto20Utils::encode_err_packet(write_buf, ob20_head_param, seq, err_code, msg_buf))) {
         LOG_WARN("fail to encode err packet in ob20 format", K(ret));
       }
diff --git a/src/obproxy/packet/ob_proxy_packet_writer.h b/src/obproxy/packet/ob_proxy_packet_writer.h
index 1fb184c8..4b58c4db 100644
--- a/src/obproxy/packet/ob_proxy_packet_writer.h
+++ b/src/obproxy/packet/ob_proxy_packet_writer.h
@@ -33,16 +33,18 @@ class ObProxyPacketWriter {
   // packet
   static int write_packet(event::ObMIOBuffer &write_buf,
                           proxy::ObMysqlClientSession &client_session,
+                          const proxy::ObProxyProtocol protocol,
                           obmysql::ObMySQLPacket &packet);
-  static int write_raw_packet(event::ObMIOBuffer &write_buf, proxy::ObMysqlClientSession &client_session,
+  static int write_raw_packet(event::ObMIOBuffer &write_buf,
+                              proxy::ObMysqlClientSession &client_session,
+                              const proxy::ObProxyProtocol protocol,
                               ObString &pkt_str);
   static int write_kv_resultset(event::ObMIOBuffer &write_buf, proxy::ObMysqlClientSession &client_session,
-                                uint8_t &seq, const obmysql::ObMySQLField &field, ObObj &field_value,
-                                const uint16_t status_flag);
-  static int write_ok_packet(event::ObMIOBuffer &write_buf, proxy::ObMysqlClientSession &client_session, uint8_t &seq,
-                             const int64_t affected_rows, const obmysql::ObMySQLCapabilityFlags &capability);
-  static int write_executor_resp_packet(event::ObMIOBuffer *write_buf, proxy::ObMysqlClientSession *client_session,
-                                        uint8_t &seq, engine::ObProxyResultResp *result_resp);
+                                const proxy::ObProxyProtocol protocol, uint8_t &seq,
+                                const obmysql::ObMySQLField &field, ObObj &field_value, const uint16_t status_flag);
+  static int write_ok_packet(event::ObMIOBuffer &write_buf, proxy::ObMysqlClientSession &client_session,
+                             const proxy::ObProxyProtocol protocol, uint8_t &seq, const int64_t affected_rows,
+                             const obmysql::ObMySQLCapabilityFlags &capability);
   
   // get thread err buffer
   static int get_err_buf(int err_code, char *&buf);
@@ -74,9 +76,11 @@ class ObProxyPacketWriter {
   }
   
   static int write_error_packet(event::ObMIOBuffer &write_buf, proxy::ObMysqlClientSession *client_session,
-                                uint8_t &seq, const int err_code, const char *msg_buf);
+                                const proxy::ObProxyProtocol protocol, uint8_t &seq,
+                                const int err_code, const char *msg_buf);
   static int write_error_packet(event::ObMIOBuffer &write_buf, proxy::ObMysqlClientSession *client_session,
-                                uint8_t &seq, const int err_code, const ObString &msg_buf);
+                                const proxy::ObProxyProtocol protocol, uint8_t &seq, const int err_code,
+                                const ObString &msg_buf);
 
 };
 
diff --git a/src/obproxy/prometheus/ob_prometheus_processor.h b/src/obproxy/prometheus/ob_prometheus_processor.h
index 106516a8..44525392 100644
--- a/src/obproxy/prometheus/ob_prometheus_processor.h
+++ b/src/obproxy/prometheus/ob_prometheus_processor.h
@@ -88,7 +88,7 @@ class ObPrometheusProcessor
   obutils::ObAsyncCommonTask *prometheus_sync_cont_;
 
   char version_[100];
-  char proxy_ip_[common::OB_IP_STR_BUFF]; // ip primary key
+  char proxy_ip_[common::MAX_IP_ADDR_LENGTH]; // ip primary key
   common::ObVector<ObPrometheusLabel> default_constant_labels_;
 
   ObPrometheusFamilyHashTable family_hash_;
diff --git a/src/obproxy/proxy/api/ob_api_internal.h b/src/obproxy/proxy/api/ob_api_internal.h
index d309439f..a956efb1 100644
--- a/src/obproxy/proxy/api/ob_api_internal.h
+++ b/src/obproxy/proxy/api/ob_api_internal.h
@@ -93,6 +93,9 @@ class ObFeatureAPIHooks
   // Remove all hooks.
   void destroy();
 
+  // Remove hooks indicated by id
+  void destroy(ID id);
+
   // Add the hook cont to the front of the hooks for id.
   int prepend(ID id, ObContInternal *cont);
 
@@ -120,7 +123,7 @@ class ObFeatureAPIHooks
 
 private:
   bool hooks_p_; // Flag for (not) empty container.
-
+  
   // The array of hooks lists.
   ObAPIHooks hooks_[N];
 };
@@ -203,6 +206,23 @@ inline void ObFeatureAPIHooks<ID, N>::destroy()
   hooks_p_ = false;
 }
 
+template <typename ID, ID N>
+inline void ObFeatureAPIHooks<ID, N>::destroy(ID id)
+{
+  if (is_valid(id)) {
+    hooks_[id].destroy();
+
+    bool has_hooks_or_not = false;
+    for (int i = 0; i < N; ++i) {
+      if (!hooks_[i].is_empty()) {
+        has_hooks_or_not = true;
+        break;
+      }
+    }
+    hooks_p_ = has_hooks_or_not;
+  }
+}
+
 template <typename ID, ID N>
 inline int ObFeatureAPIHooks<ID, N>::prepend(ID id, ObContInternal *cont)
 {
diff --git a/src/obproxy/proxy/api/ob_mysql_sm_api.h b/src/obproxy/proxy/api/ob_mysql_sm_api.h
index 8d70ed8e..4099ffea 100644
--- a/src/obproxy/proxy/api/ob_mysql_sm_api.h
+++ b/src/obproxy/proxy/api/ob_mysql_sm_api.h
@@ -116,6 +116,7 @@ class ObMysqlSMApi
   void txn_hook_append(const ObMysqlHookID id, ObContInternal *cont);
   void txn_hook_prepend(const ObMysqlHookID id, ObContInternal *cont);
   ObAPIHook *txn_hook_get(const ObMysqlHookID id);
+  void txn_destroy_hook(const ObMysqlHookID id);
 
 public:
   // Tunneling request to plugin
@@ -180,6 +181,11 @@ inline ObAPIHook *ObMysqlSMApi::txn_hook_get(const ObMysqlHookID id)
   return api_hooks_.get(id);
 }
 
+inline void ObMysqlSMApi::txn_destroy_hook(const ObMysqlHookID id)
+{
+  api_hooks_.destroy(id);
+}
+
 } // end of namespace proxy
 } // end of namespace obproxy
 } // end of namespace oceanbase
diff --git a/src/obproxy/proxy/client/Makemodule.am b/src/obproxy/proxy/client/Makemodule.am
index 33b73fdd..d62193b0 100644
--- a/src/obproxy/proxy/client/Makemodule.am
+++ b/src/obproxy/proxy/client/Makemodule.am
@@ -8,4 +8,6 @@ obproxy/proxy/client/ob_mysql_client_pool.cpp\
 obproxy/proxy/client/ob_raw_mysql_client.h\
 obproxy/proxy/client/ob_raw_mysql_client.cpp\
 obproxy/proxy/client/ob_mysql_proxy.h\
-obproxy/proxy/client/ob_mysql_proxy.cpp
+obproxy/proxy/client/ob_mysql_proxy.cpp\
+obproxy/proxy/client/ob_driver_client.h\
+obproxy/proxy/client/ob_driver_client.cpp
diff --git a/src/obproxy/proxy/client/ob_client_utils.cpp b/src/obproxy/proxy/client/ob_client_utils.cpp
index 20bf5365..cfc78c7b 100644
--- a/src/obproxy/proxy/client/ob_client_utils.cpp
+++ b/src/obproxy/proxy/client/ob_client_utils.cpp
@@ -17,7 +17,7 @@
 #include "rpc/obmysql/packet/ompk_handshake_response.h"
 #include "packet/ob_mysql_packet_reader.h"
 #include "packet/ob_mysql_packet_writer.h"
-
+#include "omt/ob_proxy_config_table_processor.h"
 
 using namespace oceanbase::common;
 using namespace oceanbase::obmysql;
@@ -25,6 +25,8 @@ using namespace oceanbase::obproxy;
 using namespace oceanbase::obproxy::proxy;
 using namespace oceanbase::obproxy::event;
 using namespace oceanbase::obproxy::packet;
+using namespace oceanbase::obproxy::omt;
+using namespace oceanbase::obproxy::obutils;
 
 namespace oceanbase
 {
@@ -41,7 +43,10 @@ void ObMysqlRequestParam::reset()
   current_idc_name_.reset();
   is_user_idc_name_set_ = false;
   need_print_trace_stat_ = false;
-
+  target_addr_.reset();
+  ob_client_flags_.flags_ = 0;
+  mysql_client_ = NULL;
+  is_detect_client_ = false;
 }
 
 void ObMysqlRequestParam::reset_sql()
@@ -81,6 +86,9 @@ int ObMysqlRequestParam::deep_copy(const ObMysqlRequestParam &other)
     is_user_idc_name_set_ = other.is_user_idc_name_set_;
     need_print_trace_stat_ = other.need_print_trace_stat_;
     target_addr_ = other.target_addr_;
+    ob_client_flags_.flags_ = other.ob_client_flags_.flags_;
+    mysql_client_ = other.mysql_client_;
+    is_detect_client_ = other.is_detect_client_;
     if (other.is_user_idc_name_set_ && !other.current_idc_name_.empty()) {
       MEMCPY(current_idc_name_buf_, other.current_idc_name_.ptr(), other.current_idc_name_.length());
       current_idc_name_.assign_ptr(current_idc_name_buf_, other.current_idc_name_.length());
@@ -265,15 +273,15 @@ int64_t ObMysqlResultHandler::to_string(char *buf, const int64_t buf_len) const
   return pos;
 }
 
-//------------------------- ObClientReuqestInfo--------------------------------//
-void ObClientReuqestInfo::reset()
+//------------------------- ObClientRequestInfo --------------------------------//
+void ObClientRequestInfo::reset()
 {
   reset_names();
   need_skip_stage2_ = false;
   request_param_.reset();
 }
 
-void ObClientReuqestInfo::reset_names()
+void ObClientRequestInfo::reset_names()
 {
   if ((NULL != name_) && (name_len_ > 0)) {
     op_fixed_mem_free(name_, name_len_);
@@ -282,31 +290,35 @@ void ObClientReuqestInfo::reset_names()
   name_len_ = 0;
   user_name_.reset();
   database_name_.reset();
+  cluster_name_.reset();
   password_.reset();
   password0_.reset();
   password1_.reset();
   using_password_num_ = -1;
+  password_version_ = 0;
 }
 
-void ObClientReuqestInfo::reset_sql()
+void ObClientRequestInfo::reset_sql()
 {
   request_param_.reset();
 }
 
-int64_t ObClientReuqestInfo::to_string(char *buf, const int64_t buf_len) const
+int64_t ObClientRequestInfo::to_string(char *buf, const int64_t buf_len) const
 {
   int64_t pos = 0;
   J_OBJ_START();
   J_KV(K_(user_name),
        K_(database_name),
+       K_(cluster_name),
        K_(request_param));
   J_OBJ_END();
   return pos;
 }
 
-int ObClientReuqestInfo::set_names(const ObString &user_name,
+int ObClientRequestInfo::set_names(const ObString &user_name,
                                    const ObString &password,
                                    const ObString &database_name,
+                                   const ObString &cluster_name,
                                    const ObString &password1)
 {
   int ret = OB_SUCCESS;
@@ -315,13 +327,24 @@ int ObClientReuqestInfo::set_names(const ObString &user_name,
     LOG_WARN("user_name can not be NULL", K(user_name), K(ret));
   } else {
     reset_names();
-    int64_t total_len = user_name.length() + password.length() + password1.length() + database_name.length();
+    int64_t total_len = user_name.length() + password.length() + password1.length()
+                        + database_name.length() + cluster_name.length();
+    if (user_name.prefix_case_match(ObProxyTableInfo::READ_ONLY_USERNAME)) {
+      if (password.empty()) {
+        total_len += ENC_STRING_BUF_LEN - 2;
+      }
+      if (password1.empty()) {
+        total_len += ENC_STRING_BUF_LEN - 2;
+      }
+    }
+
     if (OB_ISNULL(name_ = static_cast<char *>(op_fixed_mem_alloc(total_len)))) {
       ret = OB_ALLOCATE_MEMORY_FAILED;
       LOG_WARN("fail to allocate mem", "alloc size", total_len, K(ret));
     } else {
       int64_t pos = 0;
       name_len_ = total_len;
+      memset(name_, 0, total_len);
       MEMCPY(name_, user_name.ptr(), user_name.length());
       user_name_.assign_ptr(name_, user_name.length());
       pos += user_name.length();
@@ -329,25 +352,41 @@ int ObClientReuqestInfo::set_names(const ObString &user_name,
       if (!password.empty()) {
         MEMCPY(name_ + pos, password.ptr(), password.length());
         password_.assign_ptr(name_ + pos, password.length());
+        using_password_num_ = 0;
         password0_ = password_;
         pos += password.length();
+      } else if (user_name.prefix_case_match(ObProxyTableInfo::READ_ONLY_USERNAME)) {
+        password0_.assign_ptr(name_ + pos, ENC_STRING_BUF_LEN - 2);
+        pos += ENC_STRING_BUF_LEN - 2;
       }
 
       if (!password1.empty()) {
         MEMCPY(name_ + pos, password1.ptr(), password1.length());
         password1_.assign_ptr(name_ + pos, password1.length());
         pos += password1.length();
+        if (password_.empty()) {
+          password_ = password1_;
+          using_password_num_ = 1;
+        }
+      } else if (user_name.prefix_case_match(ObProxyTableInfo::READ_ONLY_USERNAME)) {
+        password1_.assign_ptr(name_ + pos, ENC_STRING_BUF_LEN - 2);
+        pos+= ENC_STRING_BUF_LEN - 2;
       }
 
-      if (!password.empty() && !password1.empty()) {
+      if (user_name.prefix_case_match(ObProxyTableInfo::READ_ONLY_USERNAME) && password0_.empty() && password1_.empty()) {
         using_password_num_ = 0;
       }
-
       if (!database_name.empty()) {
         MEMCPY(name_ + pos, database_name.ptr(), database_name.length());
         database_name_.assign_ptr(name_ + pos, database_name.length());
         pos += database_name.length();
       }
+
+      if (!cluster_name.empty()) {
+        MEMCPY(name_ + pos, cluster_name.ptr(), cluster_name.length());
+        cluster_name_.assign_ptr(name_ + pos, cluster_name.length());
+        pos += cluster_name.length();
+      }
       if (pos != total_len) {
         ret = OB_ERR_UNEXPECTED;
         LOG_WARN("pos must be equal to total len", K(pos), K(total_len), K(ret));
@@ -358,7 +397,7 @@ int ObClientReuqestInfo::set_names(const ObString &user_name,
   return ret;
 }
 
-int ObClientReuqestInfo::set_request_param(const ObMysqlRequestParam &request_param)
+int ObClientRequestInfo::set_request_param(const ObMysqlRequestParam &request_param)
 {
   int ret = OB_SUCCESS;
   if (OB_UNLIKELY(!request_param.is_valid())) {
@@ -418,7 +457,7 @@ int ObClientUtils::get_scramble(ObIOBufferReader *response_reader, char *buf,
 
 int ObClientUtils::build_handshake_response_packet(
     ObClientMysqlResp *handshake,
-    ObClientReuqestInfo *info,
+    ObClientRequestInfo *info,
     ObMIOBuffer *handshake_resp_buf)
 {
   int ret = OB_SUCCESS;
@@ -486,6 +525,45 @@ int ObClientUtils::build_handshake_response_packet(
   return ret;
 }
 
+const ObString& ObClientRequestInfo::get_password()
+{
+  int ret = OB_SUCCESS;
+  uint64_t global_version = get_global_proxy_config_table_processor().get_config_version();
+  if (!cluster_name_.empty() && password_version_ != global_version && user_name_.prefix_case_match(ObProxyTableInfo::READ_ONLY_USERNAME)) {
+    ObConfigItem item;
+    ObVipAddr addr;
+    password_.reset();
+    if (OB_FAIL(get_global_config_processor().get_proxy_config(
+            addr, cluster_name_, "", ObProxyTableInfo::OBSERVER_SYS_PASSWORD, item))) {
+      LOG_WARN("get observer_sys_password config failed", K_(cluster_name), K(ret));
+    } else if (40 == strlen(item.str())) {
+      MEMCPY(password0_.ptr(), item.str(), strlen(item.str()));
+      password_ = password0_;
+    } else {
+      memset(password0_.ptr(), 0, password0_.length());
+    }
+
+    using_password_num_ = 0;
+
+    if (OB_SUCC(ret)) {
+      if (OB_FAIL(get_global_config_processor().get_proxy_config(
+              addr, cluster_name_, "", ObProxyTableInfo::OBSERVER_SYS_PASSWORD1, item))) {
+        LOG_WARN("get observer_sys_password1 config failed", K_(cluster_name), K(ret));
+      } else if (40 == strlen(item.str())) {
+        MEMCPY(password1_.ptr(), item.str(), strlen(item.str()));
+      } else {
+        memset(password1_.ptr(), 0, sizeof(password1_.length()));
+      }
+    }
+    if (OB_SUCC(ret)) {
+      password_version_ = global_version;
+    }
+    LOG_DEBUG("get new password success", K(password0_), K(password1_));
+  }
+
+  return password_;
+}
+
 } // end of namespace proxy
 } // end of namespace obproxy
 } // end of namespace oceanbase
diff --git a/src/obproxy/proxy/client/ob_client_utils.h b/src/obproxy/proxy/client/ob_client_utils.h
index 6e94f66b..bd281ddb 100644
--- a/src/obproxy/proxy/client/ob_client_utils.h
+++ b/src/obproxy/proxy/client/ob_client_utils.h
@@ -16,6 +16,7 @@
 #include "iocore/net/ob_net.h"
 #include "proxy/mysqllib/ob_mysql_transaction_analyzer.h"
 #include "proxy/mysqllib/ob_resultset_fetcher.h"
+#include "utils/ob_proxy_table_define.h"
 
 namespace oceanbase
 {
@@ -23,25 +24,50 @@ namespace obproxy
 {
 namespace proxy
 {
+class ObMysqlClient;
+
+union ObClientFlags
+{
+  ObClientFlags() : flags_(0) {}
+  explicit ObClientFlags(uint32_t flag) : flags_(flag) {}
+
+  bool is_skip_autocommit() const { return 1 == client_flags_.OB_CLIENT_SKIP_AUTOCOMMIT; }
+  bool is_send_request_direct() const { return 1 == client_flags_.OB_CLIENT_SEND_REQUEST_DIRECT; }
+
+  uint32_t flags_;
+  struct ClinetFlags
+  {
+    uint32_t OB_CLIENT_SKIP_AUTOCOMMIT:          1;
+    uint32_t OB_CLIENT_SEND_REQUEST_DIRECT:      1;
+    uint32_t OB_CLIENT_FLAG_RESERVED_NOT_USE:   30;
+  } client_flags_;
+};
+
 class ObMysqlRequestParam
 {
 public:
   ObMysqlRequestParam() : sql_(), is_deep_copy_(false), is_user_idc_name_set_(false),
-                          need_print_trace_stat_(false), current_idc_name_(), target_addr_() {};
+                          need_print_trace_stat_(false), current_idc_name_(),
+                          target_addr_(), ob_client_flags_(0), mysql_client_(NULL),
+                          is_detect_client_(false) {};
   explicit ObMysqlRequestParam(const char *sql)
     : sql_(sql), is_deep_copy_(false), is_user_idc_name_set_(false),
-      need_print_trace_stat_(false), current_idc_name_(), target_addr_() {};
+      need_print_trace_stat_(false), current_idc_name_(), target_addr_(),
+      ob_client_flags_(0), mysql_client_(NULL), is_detect_client_(false) {};
   ObMysqlRequestParam(const char *sql, const ObString &idc_name)
     : sql_(sql), is_deep_copy_(false), is_user_idc_name_set_(true),
-      need_print_trace_stat_(true), current_idc_name_(idc_name), target_addr_() {};
+      need_print_trace_stat_(true), current_idc_name_(idc_name), target_addr_(),
+      ob_client_flags_(0), mysql_client_(NULL), is_detect_client_(false) {};
   void reset();
   void reset_sql();
   void set_target_addr(const common::ObAddr addr) { target_addr_ = addr; }
+  void set_mysql_client(ObMysqlClient *mysql_client) { mysql_client_ = mysql_client; }
+  void set_is_detect_client(const bool is_detect_client) { is_detect_client_ = is_detect_client; }
   bool is_valid() const { return !sql_.empty(); }
   int deep_copy(const ObMysqlRequestParam &other);
   int deep_copy_sql(const common::ObString &sql);
   TO_STRING_KV(K_(sql), K_(is_deep_copy), K_(current_idc_name), K_(is_user_idc_name_set),
-               K_(need_print_trace_stat), K_(target_addr));
+               K_(need_print_trace_stat), K_(target_addr), K(ob_client_flags_.flags_), K_(is_detect_client));
 
   common::ObString sql_;
   bool is_deep_copy_;
@@ -50,6 +76,11 @@ class ObMysqlRequestParam
   common::ObString current_idc_name_;
   char current_idc_name_buf_[OB_PROXY_MAX_IDC_NAME_LENGTH];
   common::ObAddr target_addr_;
+  // using flags to affect client_vc acition
+  // bit 1: whether set autocommit
+  ObClientFlags ob_client_flags_;
+  ObMysqlClient* mysql_client_;
+  bool is_detect_client_;
 };
 
 class ObClientMysqlResp
@@ -153,15 +184,15 @@ inline int ObMysqlResultHandler::get_double(const char *col_name, double &double
   return (NULL == rs_fetcher_) ? (common::OB_INNER_STAT_ERROR) : (rs_fetcher_->get_double(col_name, double_val));
 }
 
-class ObClientReuqestInfo
+class ObClientRequestInfo
 {
 public:
-   ObClientReuqestInfo()
-    : user_name_(), database_name_(), password_(),
+   ObClientRequestInfo()
+    : user_name_(), database_name_(), cluster_name_(), password_(),
       password0_(), password1_(), using_password_num_(-1),
       request_param_(), name_(NULL), name_len_(0),
-      need_skip_stage2_(false) {}
-  ~ObClientReuqestInfo() { reset(); }
+      need_skip_stage2_(false), password_version_(0) {}
+  ~ObClientRequestInfo() { reset(); }
 
   void reset();
   void reset_names();
@@ -173,21 +204,28 @@ class ObClientReuqestInfo
   int set_names(const common::ObString &user_name,
                 const common::ObString &password,
                 const common::ObString &database_name,
+                const common::ObString &cluster_name,
                 const common::ObString &password1 = "");
   int set_request_param(const ObMysqlRequestParam &request_param);
 
   const common::ObString &get_user_name() const { return user_name_; }
   const common::ObString &get_database_name() const { return database_name_; }
-  const common::ObString &get_password() const { return password_; }
+  const common::ObString &get_password();
   bool change_password()
   {
     bool bret = false;
-    if (using_password_num_ != -1) {
+    if (using_password_num_ != -1 && user_name_.prefix_case_match(ObProxyTableInfo::READ_ONLY_USERNAME)) {
       using_password_num_ = (using_password_num_ + 1) % 2;
       if (using_password_num_ == 0) {
         password_ = password0_;
+        if ('\0' == *password0_.ptr()) {
+          password_.reset();
+        }
       } else {
         password_ = password1_;
+        if ('\0' == *password1_.ptr()) {
+          password_.reset();
+        }
       }
       bret = true;
     }
@@ -202,6 +240,7 @@ class ObClientReuqestInfo
 private:
   common::ObString user_name_;
   common::ObString database_name_;
+  common::ObString cluster_name_;
   common::ObString password_;
   common::ObString password0_;
   common::ObString password1_;
@@ -210,8 +249,9 @@ class ObClientReuqestInfo
   char *name_;
   int64_t name_len_;
   bool need_skip_stage2_;
+  int64_t password_version_;
 
-  DISALLOW_COPY_AND_ASSIGN(ObClientReuqestInfo);
+  DISALLOW_COPY_AND_ASSIGN(ObClientRequestInfo);
 };
 
 class ObClientUtils
@@ -227,7 +267,7 @@ class ObClientUtils
                           const int64_t buf_len, int64_t &copy_len);
 
   static int build_handshake_response_packet(ObClientMysqlResp *handshake,
-                                             ObClientReuqestInfo *info,
+                                             ObClientRequestInfo *info,
                                              event::ObMIOBuffer *handshake_resp_buf);
 };
 
diff --git a/src/obproxy/proxy/client/ob_client_vc.cpp b/src/obproxy/proxy/client/ob_client_vc.cpp
index e5935a1f..8c80d7c3 100644
--- a/src/obproxy/proxy/client/ob_client_vc.cpp
+++ b/src/obproxy/proxy/client/ob_client_vc.cpp
@@ -18,9 +18,11 @@
 #include "proxy/mysql/ob_mysql_client_session.h"
 #include "obutils/ob_resource_pool_processor.h"
 #include "proxy/mysql/ob_mysql_sm.h"
+#include "utils/ob_proxy_table_define.h"
 
 using namespace oceanbase::common;
 using namespace oceanbase::obmysql;
+using namespace oceanbase::obproxy;
 using namespace oceanbase::obproxy::event;
 using namespace oceanbase::obproxy::packet;
 using namespace oceanbase::obproxy::obutils;
@@ -43,7 +45,7 @@ static int64_t const RESCHEDULE_GET_NETHANDLER_LOCK_INTERVAL = HRTIME_MSECONDS(1
 
 ObClientVC::ObClientVC(ObMysqlClient &client_core)
   : ObNetVConnection(), magic_(CLIENT_MAGIC_ALIVE), disconnect_by_client_(false),
-    is_request_sent_(false), is_resp_received_(false), core_client_(&client_core),
+    is_request_sent_(false), core_client_(&client_core),
     pending_action_(NULL), read_state_(), write_state_(), addr_()
 {
   SET_HANDLER(&ObClientVC::main_handler);
@@ -82,9 +84,8 @@ int ObClientVC::main_handler(int event, void *data)
       }
       case CLIENT_INFORM_MYSQL_CLIENT_TRANSFER_RESP_EVENT: {
         pending_action_ = NULL;
-        // notify ObMysqlClient to read mysql response
-        if (NULL != core_client_) {
-          core_client_->handle_event(VC_EVENT_READ_READY, &write_state_.vio_);
+        if (OB_FAIL(transfer_bytes())) {
+          LOG_ERROR("fail to transfer bytes", K(ret));
         }
         break;
       }
@@ -177,7 +178,6 @@ void ObClientVC::do_io_close(const int lerrno)
   }
 
   is_request_sent_ = false;
-  is_resp_received_ = false;
 
   if (NULL != core_client_ && !disconnect_by_client_) {
     core_client_->handle_event(CLIENT_VC_DISCONNECT_EVENT, NULL);
@@ -195,21 +195,17 @@ void ObClientVC::reenable_re(ObVIO *vio)
       read_avail = reader->read_avail();
     }
     _LOG_DEBUG("client_vc reenable_re %s, read_avail=%ld, reader=%p, thread=%p, "
-               "is_request_sent=%d, is_resp_received=%d",
+               "is_request_sent=%d",
                (ObVIO::WRITE == vio->op_) ? "Write" : "Read", read_avail,
-               reader, this_ethread(), is_request_sent_, is_resp_received_);
+               reader, this_ethread(), is_request_sent_);
 
     if (ObVIO::WRITE == vio->op_) { // write_vio
-      if (NULL != core_client_) {
-        if (read_avail > 0 && !is_resp_received_) {
-          int ret = OB_SUCCESS;
-          if (OB_ISNULL(pending_action_ = mutex_->thread_holding_->schedule_imm(
-                  this, CLIENT_INFORM_MYSQL_CLIENT_TRANSFER_RESP_EVENT))) {
-            ret = OB_ERR_UNEXPECTED;
-            LOG_ERROR("fail to schedule imm", K(ret));
-          } else {
-            is_resp_received_ = true;
-          }
+      if (NULL != core_client_ && NULL == pending_action_ && read_avail > 0) {
+        int ret = OB_SUCCESS;
+        if (OB_ISNULL(pending_action_ = mutex_->thread_holding_->schedule_imm(
+                this, CLIENT_INFORM_MYSQL_CLIENT_TRANSFER_RESP_EVENT))) {
+          ret = OB_ERR_UNEXPECTED;
+          LOG_ERROR("fail to schedule imm", K(ret));
         }
       }
     } else if (ObVIO::READ == vio->op_) { // read_vio
@@ -217,8 +213,7 @@ void ObClientVC::reenable_re(ObVIO *vio)
         if (!is_request_sent_) {
           if (addr_.is_valid()) {
             ObMysqlSM *sm = reinterpret_cast<ObMysqlSM*>(read_state_.vio_.cont_);
-            sm->trans_state_.server_info_.set_addr(addr_.get_ipv4(),
-                           static_cast<uint16_t>(addr_.get_port()));
+            sm->trans_state_.server_info_.set_addr(net::ops_ip_sa_cast(addr_.get_sockaddr()));
             sm->trans_state_.force_retry_congested_ = true;
             sm->trans_state_.need_retry_ = false;
           }
@@ -231,10 +226,59 @@ void ObClientVC::reenable_re(ObVIO *vio)
   }
 }
 
+int ObClientVC::transfer_bytes()
+{
+  int ret = OB_SUCCESS;
+
+  // Check the state of our write buffer as well as ntodo
+  ObVIO &vio = write_state_.vio_;
+  int64_t ntodo = vio.ntodo();
+  ObIOBufferReader *reader = vio.get_reader();
+  if (OB_ISNULL(reader)) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("fail to get reader", K(ret));
+  } else {
+    int64_t bytes_avail = reader->read_avail();
+    int64_t act_on = MIN(bytes_avail, ntodo);
+    int64_t total_added = 0;
+    ObMIOBuffer *transfer_to = core_client_->get_client_buf();
+
+    if (act_on <= 0) {
+      ret = OB_INVALID_ARGUMENT;
+      _LOG_WARN("act on data can not <= 0, avail=%ld, ntodo=%ld, "
+                "act_on=%ld, ret=%d", bytes_avail, ntodo, act_on, ret);
+    } else if (OB_ISNULL(transfer_to)) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("resp buffer can not be NULL", K(transfer_to), K(ret));
+    } else if (OB_FAIL(transfer_to->write(reader, act_on, total_added, 0))
+        || act_on != total_added) {
+      LOG_WARN("failed to transfer data from iobuffer reader to iobfer",
+          K(act_on), K(total_added), K(ret));
+    } else if (OB_FAIL(reader->consume(total_added))) {
+      LOG_WARN("fail to consume", K(total_added), K(ret));
+    } else {
+      vio.ndone_ += total_added;
+      LOG_DEBUG("transfer_bytes succ", "ndone", vio.ndone_, "nbytes", vio.nbytes_);
+      if (write_state_.vio_.ntodo() > 0) {
+        if (NULL != write_state_.vio_.cont_) {
+          write_state_.vio_.cont_->handle_event(VC_EVENT_WRITE_READY, &write_state_.vio_);
+        }
+      } else {
+        // notify ObMysqlClient to read mysql response
+        if (NULL != core_client_) {
+          core_client_->handle_event(VC_EVENT_READ_READY, &write_state_.vio_);
+        }
+      }
+    }
+  }
+
+  return ret;
+}
+
 ObMysqlClient::ObMysqlClient()
   : ObContinuation(), magic_(CLIENT_MAGIC_ALIVE), reentrancy_count_(0), terminate_(false),
     is_inited_(false), in_use_(false), is_request_complete_(false), use_short_connection_(false),
-    client_vc_(NULL), pool_(NULL),
+    client_vc_(NULL), pool_(NULL), cr_(NULL),
     active_timeout_action_(NULL), common_mutex_(), action_(), active_timeout_ms_(0),
     next_action_(CLIENT_ACTION_UNDEFINED), request_buf_(NULL),
     request_reader_(NULL), mysql_resp_(NULL), info_(), is_session_pool_client_(false),
@@ -248,6 +292,7 @@ int ObMysqlClient::init(ObMysqlClientPool *pool,
                         const ObString &password,
                         const ObString &database,
                         const bool is_meta_mysql_client,
+                        const ObString &cluster_name,
                         const ObString &password1,
                         ClientPoolOption* client_pool_option)
 {
@@ -262,8 +307,8 @@ int ObMysqlClient::init(ObMysqlClientPool *pool,
   } else if (OB_ISNULL(mutex = new_proxy_mutex(CLIENT_VC_LOCK))) {
     ret = OB_ALLOCATE_MEMORY_FAILED;
     LOG_WARN("fail to allocate mutex", K(ret));
-  } else if (OB_FAIL(info_.set_names(user_name, password, database, password1))) {
-    LOG_WARN("fail to set names", K(user_name), K(password), K(database), K(ret));
+  } else if (OB_FAIL(info_.set_names(user_name, password, database, cluster_name, password1))) {
+    LOG_WARN("fail to set names", K(user_name), K(password), K(database), K(cluster_name), K(ret));
   } else {
     if (client_pool_option != NULL) {
       info_.set_need_skip_stage2(client_pool_option->need_skip_stage2_);
@@ -282,6 +327,31 @@ int ObMysqlClient::init(ObMysqlClientPool *pool,
   return ret;
 }
 
+int ObMysqlClient::init_detect_client(ObClusterResource *cr)
+{
+  int ret = OB_SUCCESS;
+  ObProxyMutex *mutex = NULL;
+  ObString password(get_global_proxy_config().observer_sys_password.str());
+  if (OB_UNLIKELY(is_inited_ ||NULL == cr)) {
+    ret = OB_INIT_TWICE;
+    LOG_WARN("init twice", K_(is_inited), K(ret));
+  } else if (OB_ISNULL(mutex = new_proxy_mutex(CLIENT_VC_LOCK))) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    LOG_WARN("fail to allocate mutex", K(ret));
+  } else if (OB_FAIL(info_.set_names(ObProxyTableInfo::DETECT_USERNAME_USER, password, "obproxy", "obproxy"))) {
+    LOG_WARN("fail to set names", K(ret));
+  } else {
+    common_mutex_ = mutex;
+    mutex_ = common_mutex_;
+    next_action_ = CLIENT_ACTION_CONNECT;
+    cr->inc_ref();
+    cr_ = cr;
+    is_inited_ = true;
+    use_short_connection_ = true;
+  }
+  return ret;
+}
+
 int ObMysqlClient::post_request(
     ObContinuation *cont,
     const ObMysqlRequestParam &request_param,
@@ -378,7 +448,7 @@ int ObMysqlClient::post_request(
       mysql_resp_ = NULL;
     }
     action = NULL;
-    release();
+    release(false);
   }
 
   return ret;
@@ -439,12 +509,7 @@ int ObMysqlClient::main_handler(int event, void *data)
     }
   }
 
-  --reentrancy_count_;
-  if (OB_UNLIKELY(reentrancy_count_ < 0)) {
-    LOG_ERROR("invalid reentrancy_count", K_(reentrancy_count), K(this));
-  }
-
-  if (0 == reentrancy_count_) {
+  if (1 == reentrancy_count_) {
     // here common_mutex_ is free or held by this thread, so we can ensure lock it
     MUTEX_LOCK(lock, common_mutex_, this_ethread());
     if (OB_SUCCESS == ret && need_connect_retry_ && CLIENT_ACTION_CONNECT == next_action_) {
@@ -465,6 +530,11 @@ int ObMysqlClient::main_handler(int event, void *data)
       if (OB_SUCC(ret)) {
         do_post_request();
       }
+
+      --reentrancy_count_;
+      if (OB_UNLIKELY(reentrancy_count_ < 0)) {
+        LOG_ERROR("invalid reentrancy_count", K_(reentrancy_count), K(this));
+      }
     } else {
       if (is_request_complete_) {
         if (OB_FAIL(handle_request_complete())) {
@@ -475,9 +545,20 @@ int ObMysqlClient::main_handler(int event, void *data)
       if (terminate_) {
         kill_this();
         he_ret = EVENT_DONE;
+      } else {
+        --reentrancy_count_;
+        if (OB_UNLIKELY(reentrancy_count_ < 0)) {
+          LOG_ERROR("invalid reentrancy_count", K_(reentrancy_count), K(this));
+        }
       }
     }
+  } else {
+    --reentrancy_count_;
+    if (OB_UNLIKELY(reentrancy_count_ < 0)) {
+      LOG_ERROR("invalid reentrancy_count", K_(reentrancy_count), K(this));
+    }
   }
+
   return he_ret;
 }
 
@@ -537,7 +618,7 @@ int ObMysqlClient::handle_request_complete()
         }
       }
 
-      release();
+      release(true);
       if (need_callback) {
         cont->handle_event(CLIENT_TRANSPORT_MYSQL_RESP_EVENT, mysql_resp);
       }
@@ -723,7 +804,9 @@ int ObMysqlClient::do_next_action(void *data)
         break;
       }
       case CLIENT_ACTION_READ_LOGIN_RESP: {
-        if (OB_FAIL(transfer_and_analyze_response(vio, OB_MYSQL_COM_LOGIN))) {
+        if (info_.get_request_param().is_detect_client_) {
+          is_request_complete_ = true;
+        } else if (OB_FAIL(transfer_and_analyze_response(vio, OB_MYSQL_COM_LOGIN))) {
           LOG_WARN("fail to transfer and analyze resposne", K(ret));
         } else if (!mysql_resp_->is_resp_completed()) {
           ret = OB_ERR_UNEXPECTED;
@@ -735,6 +818,12 @@ int ObMysqlClient::do_next_action(void *data)
             if (OB_FAIL(transport_mysql_resp())) {
               LOG_WARN("fail to transfrom mysql resp", K(ret));
             }
+          } else if (info_.get_request_param().ob_client_flags_.is_skip_autocommit()) {
+            if (OB_FAIL(setup_read_normal_resp())) {
+              LOG_WARN("fail to setup read normal resp", K(ret));
+            } else if (OB_FAIL(forward_mysql_request())) {
+              LOG_WARN("fail to schedule post request", K(ret));
+            }
           } else {
             retry_times_ = 0;
             if (OB_FAIL(setup_read_autocommit_resp())) {
@@ -797,61 +886,19 @@ int ObMysqlClient::do_next_action(void *data)
 int ObMysqlClient::transfer_and_analyze_response(ObVIO &vio, const obmysql::ObMySQLCmd cmd)
 {
   int ret = OB_SUCCESS;
-  // Check the state of our write buffer as well as ntodo
-  int64_t ntodo = vio.ntodo();
-  ObIOBufferReader *reader = vio.get_reader();
-  if (OB_ISNULL(reader)) {
-    ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("fail to get reader", K(ret));
-  } else {
-    int64_t bytes_avail = reader->read_avail();
-    int64_t act_on = MIN(bytes_avail, ntodo);
-    int64_t added = 0;
-    ObMIOBuffer *transfer_to = mysql_resp_->get_resp_miobuf();
 
-    if (act_on <= 0) {
-      ret = OB_INVALID_ARGUMENT;
-      _LOG_WARN("act on data can not <= 0, avail=%ld, ntodo=%ld, "
-                "act_on=%ld, ret=%d", bytes_avail, ntodo, act_on, ret);
-    } else if (OB_ISNULL(transfer_to)) {
+  if (vio.ndone_ == vio.nbytes_) {
+    LOG_DEBUG("transfer_and_analyze_response");
+    if (OB_FAIL(mysql_resp_->analyze_resp(cmd))) {
+      LOG_WARN("fail to analyze_trans_response", K(ret));
+    } else if (!mysql_resp_->is_resp_completed()) {
       ret = OB_ERR_UNEXPECTED;
-      LOG_WARN("resp buffer can not be NULL", K(transfer_to), K(ret));
-    } else if (OB_FAIL(transfer_bytes(*transfer_to, *reader, act_on, added))) {
-      LOG_WARN("fail to transfer_bytes", K(ret));
-    } else {
-      vio.ndone_ += added;
-      LOG_DEBUG("transfer_bytes succ", "ndone", vio.ndone_, "nbytes", vio.nbytes_);
-      if (vio.ndone_ == vio.nbytes_) {
-        LOG_DEBUG("transder_and_analyze_response", K(added));
-        if (OB_FAIL(mysql_resp_->analyze_resp(cmd))) {
-          LOG_WARN("fail to analyze_trans_response", K(ret));
-        } else if (!mysql_resp_->is_resp_completed()) {
-          ret = OB_ERR_UNEXPECTED;
-          LOG_WARN("mysql response must be received completed here", K(ret));
-        }
-      } else {
-        ret = OB_ERR_UNEXPECTED;
-        LOG_WARN("ndone should be equal to nbytes",
-                 K_(vio.ndone), K_(vio.nbytes), K(ret));
-      }
+      LOG_WARN("mysql response must be received completed here", K(ret));
     }
-  }
-
-  return ret;
-}
-
-int ObMysqlClient::transfer_bytes(ObMIOBuffer &transfer_to,
-                                  ObIOBufferReader &transfer_from,
-                                  const int64_t act_on, int64_t &total_added)
-{
-  int ret = OB_SUCCESS;
-
-  if (OB_FAIL(transfer_to.write(&transfer_from, act_on, total_added, 0))
-      || act_on != total_added) {
-    LOG_WARN("failed to transfer data from iobuffer reader to iobfer",
-             K(act_on), K(total_added), K(ret));
-  } else if (OB_FAIL(transfer_from.consume(total_added))) {
-    LOG_WARN("fail to consume", K(total_added), K(ret));
+  } else {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("ndone should be equal to nbytes",
+             K_(vio.ndone), K_(vio.nbytes), K(ret));
   }
 
   return ret;
@@ -864,7 +911,6 @@ int ObMysqlClient::forward_mysql_request()
 
   if (request_reader_->read_avail() > 0) {
     client_vc_->clear_request_sent();
-    client_vc_->clear_resp_received();
     client_vc_->reenable_read();
   }
 
@@ -1010,7 +1056,13 @@ int ObMysqlClient::do_new_connection_with_cr(ObMysqlClientSession *client_sessio
 {
   int ret = OB_SUCCESS;
 
-  ObClusterResource *cr = pool_->acquire_cluster_resource(); // inc ref
+  ObClusterResource *cr = NULL;
+  if (NULL != cr_) {
+    cr_->inc_ref();
+    cr = cr_;
+  } else {
+    cr = pool_->acquire_cluster_resource(); // inc ref
+  }
   LOG_DEBUG("new connection", K(cr), KPC(cr));
   if (OB_ISNULL(cr)) {
     ret = OB_ERR_UNEXPECTED;
@@ -1039,6 +1091,10 @@ int ObMysqlClient::setup_read_handshake()
   } else {
     client_vc_->mutex_ = mutex_;
     client_session->set_proxy_mysql_client();
+    if (info_.get_request_param().ob_client_flags_.is_send_request_direct()) {
+      client_session->set_can_send_request();
+      client_session->is_need_update_dummy_entry_ = true;
+    }
     client_session->set_session_pool_client(is_session_pool_client_);
     if (is_session_pool_client_) {
       // client_session->set_is_dbmesh_user(false);
@@ -1048,10 +1104,9 @@ int ObMysqlClient::setup_read_handshake()
     client_session->set_server_addr(server_addr_);
     client_session->set_first_dml_sql_got();
     client_session->inner_request_param_ = &info_.get_request_param();
-    client_vc_->clear_resp_received();
 
     next_action_ = CLIENT_ACTION_READ_HANDSHAKE;
-    if (pool_->is_cluster_param()) {
+    if ((NULL != pool_ && pool_->is_cluster_param()) || NULL != cr_) {
       if (OB_FAIL(do_new_connection_with_cr(client_session))) {
         LOG_WARN("fail to new connection with cr", K(ret));
       }
@@ -1079,9 +1134,9 @@ int ObMysqlClient::setup_read_handshake()
   return ret;
 }
 
-void ObMysqlClient::release()
+void ObMysqlClient::release(bool is_need_check_reentry)
 {
-  if (OB_LIKELY(0 == reentrancy_count_) && OB_LIKELY(!terminate_)) {
+  if (OB_LIKELY(!is_need_check_reentry || 1 == reentrancy_count_) && OB_LIKELY(!terminate_)) {
     int ret = OB_SUCCESS;
     if (OB_FAIL(cancel_active_timeout())) {
       LOG_ERROR("fail to cancel timeout action,"
@@ -1089,9 +1144,11 @@ void ObMysqlClient::release()
     } else {
       // for defense, make sure client vc's mutex is common mutex when release to client pool;
       // Never free client vc in mysql client, it will be free by mysql_sm
-      if (NULL != client_vc_ && client_vc_->mutex_ != common_mutex_) {
+      if (!info_.get_request_param().is_detect_client_ && NULL != client_vc_ && client_vc_->mutex_ != common_mutex_) {
         client_vc_->handle_event(CLIENT_VC_SWAP_MUTEX_EVENT, common_mutex_.ptr_);
-        client_vc_->mutex_ = common_mutex_;
+        if (NULL != client_vc_) {
+          client_vc_->mutex_ = common_mutex_;
+        }
       }
       action_.set_continuation(NULL);
       action_.cancelled_ = false;
@@ -1101,7 +1158,9 @@ void ObMysqlClient::release()
       in_use_ = false;
       is_request_complete_ = false;
       mutex_ = common_mutex_; // when idle, keep common_mutex_
-      pool_->release_mysql_client(this);
+      if (NULL != pool_) {
+        pool_->release_mysql_client(this);
+      }
     }
   }
 }
@@ -1130,6 +1189,11 @@ void ObMysqlClient::kill_this()
     pool_ = NULL;
   }
 
+  if (NULL != cr_) {
+    cr_->dec_ref();
+    cr_ = NULL;
+  }
+
   is_inited_ = false;
   in_use_ = false;
   use_short_connection_ = false;
@@ -1156,7 +1220,7 @@ void ObMysqlClient::kill_this()
 
 int ObMysqlClient::alloc(ObMysqlClientPool *pool, ObMysqlClient *&client,
     const ObString &user_name, const ObString &password,
-    const ObString &database, const bool is_meta_mysql_client,
+    const ObString &database, const bool is_meta_mysql_client, const ObString &cluster_name,
     const ObString &password1, ClientPoolOption* client_pool_option)
 {
   int ret = OB_SUCCESS;
@@ -1164,7 +1228,7 @@ int ObMysqlClient::alloc(ObMysqlClientPool *pool, ObMysqlClient *&client,
   if (OB_ISNULL(client = op_alloc(ObMysqlClient))) {
     ret = OB_ALLOCATE_MEMORY_FAILED;
     LOG_WARN("fail to allocate ObMysqlClient", K(ret));
-  } else if (OB_FAIL(client->init(pool, user_name, password, database, is_meta_mysql_client, password1, client_pool_option))) {
+  } else if (OB_FAIL(client->init(pool, user_name, password, database, is_meta_mysql_client, cluster_name, password1, client_pool_option))) {
     LOG_WARN("fail to init client", K(ret));
   }
   if (OB_FAIL(ret) && (NULL != client)) {
diff --git a/src/obproxy/proxy/client/ob_client_vc.h b/src/obproxy/proxy/client/ob_client_vc.h
index 9ccf8c46..19560323 100644
--- a/src/obproxy/proxy/client/ob_client_vc.h
+++ b/src/obproxy/proxy/client/ob_client_vc.h
@@ -80,6 +80,7 @@ class ObClientVC : public net::ObNetVConnection
   virtual void reenable(event::ObVIO *vio) { reenable_re(vio); }
   virtual void reenable_re(event::ObVIO *vio);
   void reenable_read() { reenable_re(&read_state_.vio_); }
+  int transfer_bytes();
 
   // Timeouts
   virtual int set_active_timeout(ObHRTime timeout_in) { UNUSED(timeout_in); return 0; }
@@ -101,14 +102,12 @@ class ObClientVC : public net::ObNetVConnection
   virtual int apply_options() { return 0; }
 
   void clear_request_sent() { is_request_sent_ = false; }
-  void clear_resp_received() { is_resp_received_ = false; }
   void set_addr(const common::ObAddr &addr) { addr_ = addr; }
 
 private:
   uint32_t magic_;
   bool disconnect_by_client_; // dissconnect by received VC_EVENT_EOS, sent by ObMysqlClient
   bool is_request_sent_; // used to inform client session read request only once
-  bool is_resp_received_; // used to inform mysql client read resp onely once
   ObMysqlClient *core_client_;
   event::ObAction *pending_action_;
 
@@ -142,6 +141,7 @@ class ObMysqlClient : public event::ObContinuation
                    const common::ObString &password,
                    const common::ObString &database,
                    const bool is_meta_mysql_client,
+                   const common::ObString &cluster_name = "",
                    const common::ObString &password1 = "",
                    ClientPoolOption* client_pool_option = NULL);
 
@@ -150,9 +150,12 @@ class ObMysqlClient : public event::ObContinuation
            const common::ObString &password,
            const common::ObString &database,
            const bool is_meta_mysql_client,
+           const common::ObString &cluster_name = "",
            const common::ObString &password1 = "",
            ClientPoolOption* client_pool_option = NULL);
 
+  int init_detect_client(obutils::ObClusterResource *cr);
+
   // must be used under the mutex_'s lock
   bool is_avail() const { return !in_use_; }
 
@@ -167,6 +170,8 @@ class ObMysqlClient : public event::ObContinuation
   static const char *get_client_event_name(const int64_t event);
 
   event::ObProxyMutex *get_common_mutex() { return common_mutex_.ptr_; }
+  void kill_this();
+  event::ObMIOBuffer *get_client_buf() { return mysql_resp_->get_resp_miobuf(); }
 
 private:
   static const char *get_client_action_name(const ObClientActionType type);
@@ -174,8 +179,6 @@ class ObMysqlClient : public event::ObContinuation
   int do_post_request();
   int do_next_action(void *data);
   int transfer_and_analyze_response(event::ObVIO &vio, const obmysql::ObMySQLCmd cmd);
-  int transfer_bytes(event::ObMIOBuffer &transfer_to, event::ObIOBufferReader &transfer_from,
-                     const int64_t act_on, int64_t &added);
 
   int notify_transfer_completed();
 
@@ -187,7 +190,6 @@ class ObMysqlClient : public event::ObContinuation
   int setup_read_normal_resp();
   bool is_in_auth() const;
   int transport_mysql_resp();
-  void kill_this();
   int handle_client_vc_disconnect();
   int forward_mysql_request();
 
@@ -196,7 +198,7 @@ class ObMysqlClient : public event::ObContinuation
   int handle_active_timeout();
   int handle_request_complete();
 
-  void release();
+  void release(bool is_need_check_reentry);
 
 public:
   SLINK(ObMysqlClient, link_);
@@ -215,6 +217,8 @@ class ObMysqlClient : public event::ObContinuation
   bool use_short_connection_;
   ObClientVC *client_vc_;
   ObMysqlClientPool *pool_;
+  // in some situtaion, we can create obmysql client without ClientPool
+  obutils::ObClusterResource *cr_;
 
   event::ObAction *active_timeout_action_;
   common::ObPtr<event::ObProxyMutex> common_mutex_;
@@ -227,7 +231,7 @@ class ObMysqlClient : public event::ObContinuation
   event::ObIOBufferReader *request_reader_;
 
   ObClientMysqlResp *mysql_resp_;
-  ObClientReuqestInfo info_;
+  ObClientRequestInfo info_;
 
   bool is_session_pool_client_;
   ObProxySchemaKey schema_key_;
diff --git a/src/obproxy/proxy/client/ob_driver_client.cpp b/src/obproxy/proxy/client/ob_driver_client.cpp
new file mode 100644
index 00000000..29d1711f
--- /dev/null
+++ b/src/obproxy/proxy/client/ob_driver_client.cpp
@@ -0,0 +1,375 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ *
+ * *************************************************************
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "proxy/client/ob_driver_client.h"
+#include "proxy/mysql/ob_mysql_client_session.h"
+#include "iocore/eventsystem/ob_action.h"
+#include "iocore/net/ob_socket_manager.h"
+
+using namespace oceanbase::common;
+using namespace oceanbase::obproxy::event;
+using namespace oceanbase::obproxy::net;
+
+#define SET_NONBLOCKING(fd) {           \
+        int tmp_ret = OB_SUCCESS;      \
+        int flags = fcntl(fd, F_GETFL); \
+        int res = -1;                   \
+        flags |= O_NONBLOCK;            \
+        if (OB_SUCCESS != (tmp_ret = ObSocketManager::fcntl(fd, F_SETFL, flags, res))) { \
+          OBPROXY_DRIVER_CLIENT_LOG(WARN, "fail to set nonblocking", K(tmp_ret), K(errno), K(strerror(errno))); \
+          if (OB_SUCCESS == ret) {  \
+            ret = tmp_ret;  \
+          } \
+        }      \
+}
+
+#define SET_BLOCKING(fd) {              \
+        int tmp_ret = OB_SUCCESS;       \
+        int flags = fcntl(fd, F_GETFL); \
+        int res = -1;                   \
+        flags &= ~O_NONBLOCK;           \
+        if (OB_SUCCESS != (tmp_ret = ObSocketManager::fcntl(fd, F_SETFL, flags, res))) { \
+          OBPROXY_DRIVER_CLIENT_LOG(WARN, "fail to set blocking", K(ret), K(errno), K(strerror(errno))); \
+          if (OB_SUCCESS == ret) { \
+            ret = tmp_ret; \
+          } \
+        }      \
+}
+
+namespace oceanbase
+{
+namespace obproxy
+{
+namespace proxy
+{
+
+ObDriverClient::ObDriverClient() : is_inited_(false), unix_fd_(-1), connect_timeout_(0), recv_timeout_(0), send_timeout_(0), cs_id_(-1)
+{
+}
+
+ObDriverClient::~ObDriverClient()
+{
+  destroy();
+}
+
+void ObDriverClient::destroy()
+{
+  is_inited_ = false;
+  if (unix_fd_ != -1) {
+    close(unix_fd_);
+    unix_fd_ = -1;
+  }
+  connect_timeout_ = 0;
+  send_timeout_ = 0;
+  recv_timeout_ = 0;
+  cs_id_ = -1;
+}
+
+int ObDriverClient::init()
+{
+  int ret = OB_SUCCESS;
+  if (OB_UNLIKELY(is_inited_)) {
+    ret = OB_INIT_TWICE;
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "driver client init twice", K(this), K(ret));
+  } else if (OB_FAIL(ObSocketManager::socket(AF_UNIX, SOCK_STREAM, 0, unix_fd_))) {
+    OBPROXY_DRIVER_CLIENT_LOG(ERROR, "dirver client create socket failed", K(this), K(ret));
+  } else {
+    OBPROXY_DRIVER_CLIENT_LOG(DEBUG, "init driver client", K(this), K_(cs_id));
+    is_inited_ = true;
+  }
+  return ret;
+}
+
+int ObDriverClient::sync_connect()
+{
+  int ret = OB_SUCCESS;
+  struct sockaddr_un addr;
+  addr.sun_family = AF_UNIX;
+  memset(addr.sun_path, 0, sizeof(addr.sun_path));
+  strncpy(addr.sun_path, get_global_layout().get_unix_domain_path(), sizeof(addr.sun_path) - 1);
+  if (OB_FAIL(ObSocketManager::connect(unix_fd_, (struct sockaddr*)&addr, sizeof(addr)))) {
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "driver client connect unix domain failed", K(this), K(errno), K(ret));
+  } else {
+    OBPROXY_DRIVER_CLIENT_LOG(DEBUG, "driver client connect success" , K(this));
+  }
+  return ret;
+}
+
+int ObDriverClient::sync_connect_with_timeout()
+{
+  int ret = OB_SUCCESS;
+  if (connect_timeout_ < 0) {
+    ret = OB_ERR_UNEXPECTED;
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "connect timeout value unexpected", K(connect_timeout_), K(ret));
+  } else if (connect_timeout_ == 0) {
+    ret = sync_connect();
+  } else {
+    int64_t timeout = connect_timeout_;
+    struct sockaddr_un addr;
+    addr.sun_family = AF_UNIX;
+    memset(addr.sun_path, 0, sizeof(addr.sun_path));
+    strncpy(addr.sun_path, get_global_layout().get_unix_domain_path(), sizeof(addr.sun_path) - 1);
+    SET_NONBLOCKING(unix_fd_);
+
+    int connect_rv = 0;
+    while (OB_SUCC(ret)) {
+      connect_rv = connect(unix_fd_, (struct sockaddr*)&addr, sizeof(addr));
+      if (connect_rv < 0) {
+        int64_t prev_time = get_current_time();
+        if (errno != EINPROGRESS && errno != EWOULDBLOCK && errno != EAGAIN) {
+          ret = ob_get_sys_errno();
+          OBPROXY_DRIVER_CLIENT_LOG(WARN, "connect failed", K(ret));
+        } else if (errno == EWOULDBLOCK || errno == EAGAIN) {
+          // The unix socket encounters the above socket sleep 1ms to prevent it from being called all the time.
+          // Refer to https://stackoverflow.com/questions/48222690/set-connect-timeout-on-unix-domain-socket
+          usleep(1000);
+          int64_t new_time = get_current_time();
+          timeout -= (new_time - prev_time);
+          prev_time = new_time;
+          if (timeout <= 0) {
+            ret = OB_TIMEOUT;
+            OBPROXY_DRIVER_CLIENT_LOG(WARN ,"connect timeout", K_(connect_timeout), K(ret));
+          }
+        } else if (errno == EINPROGRESS) {
+          while (OB_SUCC(ret)) {
+            struct pollfd pfd;
+            pfd.fd = unix_fd_;
+            pfd.events = POLLOUT;
+            connect_rv = poll(&pfd, 1, static_cast<int>(timeout));
+            if (connect_rv > 0) {
+              break;
+            } else if (connect_rv == 0) {
+              ret = OB_TIMEOUT;
+              OBPROXY_DRIVER_CLIENT_LOG(WARN ,"connect timeout", K_(connect_timeout), K(ret));
+            } else {
+              if (errno != EINTR) {
+                ret = ob_get_sys_errno();
+                OBPROXY_DRIVER_CLIENT_LOG(WARN, "poll failed", K(ret));
+              } else {
+                int64_t new_time = get_current_time();
+                timeout -= (new_time - prev_time);
+                prev_time = new_time;
+                if (timeout <= 0) {
+                  ret = OB_TIMEOUT;
+                  OBPROXY_DRIVER_CLIENT_LOG(WARN ,"connect timeout", K_(connect_timeout), K(ret));
+                }
+              }
+            }
+          }
+          if (OB_SUCC(ret) && connect_rv > 0) {
+            OBPROXY_DRIVER_CLIENT_LOG(DEBUG, "connect with timeout success", K_(connect_timeout), K(ret));
+            break;
+          }
+        }
+      } else {
+        OBPROXY_DRIVER_CLIENT_LOG(DEBUG, "connect with timeout success", K_(connect_timeout), K(ret));
+        break;
+      }
+    }
+    SET_BLOCKING(unix_fd_);
+  }
+
+  return ret;
+}
+
+int ObDriverClient::sync_recv_internal(char *buf, int64_t buf_len, int64_t &recv_len, int recv_flags)
+{
+  int ret = OB_SUCCESS;
+
+  if (OB_UNLIKELY(NULL == buf || 0 >= buf_len)) {
+    ret = OB_ERR_UNEXPECTED;
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "buf is null or len is invalid", K(buf_len), K(this), K_(cs_id), K(ret));
+  } else {
+
+    do {
+      recv_len = recv(unix_fd_, buf, buf_len, recv_flags);
+    } while (recv_len == -1 && EINTR == errno);
+
+    OBPROXY_DRIVER_CLIENT_LOG(DEBUG, "sync_recv_internal recv finish", K(recv_len), K(errno));
+
+    if (EAGAIN == errno || EWOULDBLOCK == errno) {
+      // will call this func again, do nothing
+    } else if (-1 == recv_len) {
+      ret = ob_get_sys_errno();
+      OBPROXY_DRIVER_CLIENT_LOG(WARN, "recv failed", K(ret), KP(buf), K(buf_len), K(recv_len), K(recv_flags));
+    } else {
+      // success, do nothing
+    }
+  }
+
+  return ret;
+}
+
+int ObDriverClient::sync_wait_io_or_timeout(bool is_recv)
+{
+  int ret = OB_SUCCESS;
+  struct pollfd pfd;
+  int rv = 0;
+  int64_t timeout = 0;
+  int64_t prev_time = get_current_time();
+  int64_t new_time = 0;
+    
+  memset(&pfd, 0, sizeof(pfd));
+  pfd.fd = unix_fd_;
+  if (is_recv) {
+    timeout = recv_timeout_ <= 0 ? -1 : recv_timeout_;
+    pfd.events = POLLIN | POLLERR;
+  } else {
+    timeout = send_timeout_ <= 0 ? -1 : send_timeout_;
+    pfd.events = POLLOUT;
+  }
+
+  OBPROXY_DRIVER_CLIENT_LOG(DEBUG, "sync_wait_io_or_timeout call poll", K(is_recv), K(timeout));
+
+  do {
+    // Prevent continuous interruptions, resulting in waiting
+    if (timeout > 0) {
+      new_time = get_current_time();
+      timeout -= new_time - prev_time;
+      if (timeout < 0) {
+        timeout = 0;
+      }
+      prev_time = new_time;
+    }
+    rv = poll(&pfd, 1, static_cast<int>(timeout));
+  } while (rv == -1 && errno == EINTR);
+
+  if (rv < 0) {
+    ret = ob_get_sys_errno();
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "poll error", K(ret));
+  } else if (rv == 0) {
+    ret = OB_TIMEOUT;
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "poll timeout", K(timeout), K(ret));
+  } else {
+    // recv >= 0 , do nothing
+  }
+
+  return ret;
+}
+
+int ObDriverClient::sync_recv_with_timeout(char *buf, int64_t buf_len, int64_t &recv_len)
+{
+  int ret = OB_SUCCESS;
+
+  if (OB_UNLIKELY(NULL == buf || 0 >= buf_len)) {
+    ret = OB_ERR_UNEXPECTED;
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "buf is null or len is invalid", K(buf_len), K(this), K_(cs_id), K(ret));
+  } else {
+    int recv_flags= MSG_DONTWAIT;
+    recv_len = -1;
+
+    while (OB_SUCC(ret) && -1 == recv_len) {
+      if (OB_FAIL(sync_recv_internal(buf, buf_len, recv_len, recv_flags))) {
+        OBPROXY_DRIVER_CLIENT_LOG(WARN, "fail to call sync_recv_internal", K(buf_len), K(recv_len), K(ret));
+      } else if (-1 == recv_len && OB_FAIL(sync_wait_io_or_timeout(true))) {
+        OBPROXY_DRIVER_CLIENT_LOG(WARN, "fail to call sync_wait_io_or_timeout", K(ret));
+      } else {
+        // do nothing
+      }
+    }
+
+    if (OB_FAIL(ret)) {
+      OBPROXY_DRIVER_CLIENT_LOG(WARN, "driver client recv failed", K(this), K(recv_len), K(recv_flags), K_(cs_id), K_(unix_fd), K(ret));
+    }
+
+  }
+
+  return ret;
+}
+
+int ObDriverClient::sync_send_internal(const char *buf, int64_t buf_len, int64_t &send_len, int send_flags)
+{
+  int ret = OB_SUCCESS;
+
+  if (OB_UNLIKELY(NULL == buf || 0 >= buf_len)) {
+    ret = OB_ERR_UNEXPECTED;
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "buf is null or len is invalid", K(buf_len), K(this), K_(cs_id), K(ret));
+  } else {
+
+    do {
+      send_len = send(unix_fd_, buf, buf_len, send_flags);
+    } while (send_len == -1 && EINTR == errno);
+
+    OBPROXY_DRIVER_CLIENT_LOG(DEBUG, "sync_send_internal send finish", K(send_len), K(errno));
+
+    if (EAGAIN == errno || EWOULDBLOCK == errno) {
+      // will call this func again, do nothing
+    } else if (-1 == send_len) {
+      ret = ob_get_sys_errno();
+      OBPROXY_DRIVER_CLIENT_LOG(WARN, "send failed", K(ret), KP(buf), K(buf_len), K(send_len), K(send_flags));
+    } else {
+      // success, do nothing
+    }
+  }
+
+  return ret;
+}
+
+int ObDriverClient::sync_send_with_timeout(const char *buf, int64_t buf_len, int64_t &send_len)
+{
+  int ret = OB_SUCCESS;
+
+  if (OB_UNLIKELY(NULL == buf || 0 >= buf_len)) {
+    ret = OB_ERR_UNEXPECTED;
+    OBPROXY_DRIVER_CLIENT_LOG(WARN, "buf is null or len is invalid", K(buf_len), K(this), K_(cs_id), K(ret));
+  } else {
+    int send_flags = MSG_DONTWAIT | MSG_NOSIGNAL;
+    send_len = -1;
+
+    while (OB_SUCC(ret) && -1 == send_len) {
+      if (OB_FAIL(sync_send_internal(buf, buf_len, send_len, send_flags))) {
+        OBPROXY_DRIVER_CLIENT_LOG(WARN, "fail to call sync_send_internal", K(buf_len), K(send_len), K(ret));
+      } else if (-1 == send_len && OB_FAIL(sync_wait_io_or_timeout(false))) {
+        OBPROXY_DRIVER_CLIENT_LOG(WARN, "fail to call sync_wait_io_or_timeout", K(ret));
+      } else {
+        // do nothing
+      }
+    }
+
+    if (OB_FAIL(ret)) {
+      OBPROXY_DRIVER_CLIENT_LOG(WARN, "driver client send failed", K(this), K(send_len), K(send_flags), K_(cs_id), K_(unix_fd), K(ret));
+    }
+
+  }
+
+  return ret;
+}
+
+int64_t ObDriverClient::get_current_time()
+{
+  timeval tv;
+  gettimeofday(&tv, NULL);
+  int64_t current_time = tv.tv_sec * 1000 + tv.tv_usec / 1000;
+  return current_time;
+}
+
+} // end of proxy
+} // end of obproxy
+} // end of oceanbase
diff --git a/src/obproxy/proxy/client/ob_driver_client.h b/src/obproxy/proxy/client/ob_driver_client.h
new file mode 100644
index 00000000..0e345c46
--- /dev/null
+++ b/src/obproxy/proxy/client/ob_driver_client.h
@@ -0,0 +1,86 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ *
+ * *************************************************************
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef OB_DRIVER_CLIENT_H_
+#define OB_DRIVER_CLIENT_H_
+
+#include "proxy/client/ob_client_utils.h"
+#include "iocore/net/ob_net_vconnection.h"
+#include "iocore/eventsystem/ob_ethread.h"
+
+namespace oceanbase
+{
+namespace obproxy
+{
+namespace proxy
+{
+
+class ObDriverClient
+{
+public:
+  ObDriverClient();
+  virtual ~ObDriverClient();
+  int init();
+  int sync_connect();
+  int sync_connect_with_timeout();
+  int sync_recv_with_timeout(char *buf, int64_t buf_len, int64_t &recv_len);
+  int sync_send_with_timeout(const char *buf, int64_t buf_len, int64_t &send_len);
+  inline void set_connect_timeout(const int64_t timeout) { connect_timeout_ = timeout; }
+  inline void set_cs_id(const int64_t cs_id) { cs_id_ = cs_id; }
+  void destroy();
+
+  int64_t get_connect_timeout() const { return connect_timeout_; }
+  int64_t get_recv_timeout() const { return recv_timeout_; }
+  void set_recv_timeout(const int64_t timeout) { recv_timeout_ = timeout; }
+  int64_t get_send_timeout() const { return send_timeout_; }
+  void set_send_timeout(const int64_t timeout) { send_timeout_ = timeout; }
+
+private:
+  inline int64_t get_current_time();
+  int sync_recv_internal(char *buf, int64_t buf_len, int64_t &recv_len, int recv_flags);
+  int sync_send_internal(const char *buf, int64_t buf_len, int64_t &send_len, int send_flags);
+  int sync_wait_io_or_timeout(bool is_recv);
+
+private:
+  bool is_inited_;
+  int unix_fd_;
+  int64_t connect_timeout_;
+  int64_t recv_timeout_;
+  int64_t send_timeout_;
+  int64_t cs_id_;
+private:
+DISALLOW_COPY_AND_ASSIGN(ObDriverClient);
+};
+
+} // end of namespace proxy
+} // end of namespace obproxy
+} // end of namespace oceanbase
+
+#endif
diff --git a/src/obproxy/proxy/client/ob_mysql_client_pool.cpp b/src/obproxy/proxy/client/ob_mysql_client_pool.cpp
index 99ba5d7b..423b2904 100644
--- a/src/obproxy/proxy/client/ob_mysql_client_pool.cpp
+++ b/src/obproxy/proxy/client/ob_mysql_client_pool.cpp
@@ -158,6 +158,7 @@ int ObMysqlClientPool::init(
     const ObString &user_name,
     const ObString &password,
     const ObString &database,
+    const ObString &cluster_name,
     const ObString &password1,
     ClientPoolOption* client_pool_option)
 {
@@ -175,7 +176,8 @@ int ObMysqlClientPool::init(
     ObMysqlClient *mysql_client = NULL;
     const int64_t mc_count = get_mysql_client_pool_count(is_meta_mysql_client);
     for (int64_t i = 0; (i < mc_count && OB_SUCC(ret)); ++i) {
-      if (OB_FAIL(ObMysqlClient::alloc(this, mysql_client, user_name, password, database, is_meta_mysql_client, password1, client_pool_option))) {
+      if (OB_FAIL(ObMysqlClient::alloc(this, mysql_client, user_name, password, database, is_meta_mysql_client,
+                                       cluster_name, password1, client_pool_option))) {
         LOG_WARN("fail to alloc mysql client", K(user_name), K(password),
                  K(database), "idx", i, K(is_meta_mysql_client), K(ret));
       } else if (OB_ISNULL(mysql_client)) {
diff --git a/src/obproxy/proxy/client/ob_mysql_client_pool.h b/src/obproxy/proxy/client/ob_mysql_client_pool.h
index 3e5e9b33..e02f2719 100644
--- a/src/obproxy/proxy/client/ob_mysql_client_pool.h
+++ b/src/obproxy/proxy/client/ob_mysql_client_pool.h
@@ -52,6 +52,7 @@ class ObMysqlClientPool : public common::ObSharedRefCount
            const common::ObString &user_name,
            const common::ObString &password,
            const common::ObString &database,
+           const common::ObString &cluster_name = "",
            const common::ObString &password1 = "",
            ClientPoolOption* client_pool_option = NULL);
   void destroy();
diff --git a/src/obproxy/proxy/client/ob_mysql_proxy.cpp b/src/obproxy/proxy/client/ob_mysql_proxy.cpp
index 377a50a1..97b40250 100644
--- a/src/obproxy/proxy/client/ob_mysql_proxy.cpp
+++ b/src/obproxy/proxy/client/ob_mysql_proxy.cpp
@@ -173,7 +173,7 @@ int ObMysqlProxyCont::async_post_request(const ObMysqlRequestParam &request_para
   action = NULL;
   if (OB_UNLIKELY(!request_param.is_valid())
       || OB_UNLIKELY(timeout_ms <= 0)
-      || OB_ISNULL(client_pool)) {
+      || (!request_param.is_detect_client_ && OB_ISNULL(client_pool))) {
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("invalid input value", K(request_param), K(timeout_ms), K(ret));
   } else if (OB_FAIL(request_param_.deep_copy(request_param))) {
@@ -181,8 +181,10 @@ int ObMysqlProxyCont::async_post_request(const ObMysqlRequestParam &request_para
   } else {
     is_nonblock_ = true;
     timeout_ms_ = timeout_ms;
-    client_pool->inc_ref();
-    client_pool_ = client_pool;
+    if (NULL != client_pool) {
+      client_pool->inc_ref();
+      client_pool_ = client_pool;
+    }
   }
 
   if (OB_SUCC(ret)) {
@@ -322,7 +324,13 @@ int ObMysqlProxyCont::do_post_request()
     if (OB_SUCC(ret)) {
       ret = OB_EAGAIN;
       if (NULL == mysql_client_) {
-        mysql_client_ = client_pool_->acquire_mysql_client();
+        // For probing requests, in order to prevent competition for connection pool connections,
+        // use a separate mysql_client
+        if (NULL != request_param_.mysql_client_) {
+          mysql_client_ = request_param_.mysql_client_;
+        } else {
+          mysql_client_ = client_pool_->acquire_mysql_client();
+        }
       }
       if (NULL != mysql_client_) {
         ObAction *action = NULL;
@@ -463,6 +471,7 @@ int ObMysqlProxy::init(const int64_t timeout_ms,
                        const ObString &user_name,
                        const ObString &password,
                        const ObString &database,
+                       const ObString &cluster_name,
                        const ObString &password1)
 {
   int ret = OB_SUCCESS;
@@ -472,7 +481,7 @@ int ObMysqlProxy::init(const int64_t timeout_ms,
   } else if (OB_UNLIKELY(timeout_ms <= 0)) {
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("invalid input value", K(timeout_ms), K(ret));
-  } else if (OB_FAIL(raw_mysql_client_.init(user_name, password, database, password1))) {
+  } else if (OB_FAIL(raw_mysql_client_.init(user_name, password, database, cluster_name, password1))) {
     LOG_WARN("fail to init raw mysql client", K(ret));
   } else {
     timeout_ms_ = timeout_ms;
@@ -500,7 +509,7 @@ int ObMysqlProxy::rebuild_client_pool(ObShardConnector *shard_conn,
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("invalid input value", K(user_name));
   } else {
-    if (OB_FAIL(alloc_client_pool(is_meta_mysql_client, user_name, password, database, password1, client_pool_option))) {
+    if (OB_FAIL(alloc_client_pool(is_meta_mysql_client, user_name, password, database, "", password1, client_pool_option))) {
       LOG_WARN("fail to alloc client pool", K(is_meta_mysql_client), K(user_name), K(database), K(ret));
     } else {
       client_pool_->set_shard_conn(shard_conn);
@@ -539,7 +548,7 @@ int ObMysqlProxy::rebuild_client_pool(ObClusterResource *cluster_resource,
     } else {
       ObString full_username(full_user_name);
       if (OB_FAIL(alloc_client_pool(is_meta_mysql_client, full_username,
-                                             password, database, password1, client_pool_option))) {
+                                             password, database, cluster_name, password1, client_pool_option))) {
         LOG_WARN("fail to alloc client pool", K(user_name), K(database), K(ret));
       } else {
         client_pool_->set_cluster_resource(cluster_resource);
@@ -613,7 +622,7 @@ int ObMysqlProxy::async_execute(ObContinuation *cont,
     LOG_DEBUG("ObMysqlProxy::async_execute", K(cont), K(request_param), K(timeout_ms), K(ret));
     ObMysqlProxyCont *mp_cont = NULL;
     ObMysqlClientPool *pool = NULL;
-    if (OB_ISNULL(pool = acquire_client_pool())) {
+    if (!request_param.is_detect_client_ && OB_ISNULL(pool = acquire_client_pool())) {
       ret = OB_ENTRY_NOT_EXIST;
       LOG_WARN("client pool is null", K(ret));
     } else {
@@ -825,6 +834,7 @@ int ObMysqlProxy::alloc_client_pool(const bool is_meta_mysql_client,
                                     const ObString &user_name,
                                     const ObString &password,
                                     const ObString &database,
+                                    const ObString &cluster_name,
                                     const ObString &password1,
                                     ClientPoolOption* client_pool_option)
 {
@@ -839,7 +849,7 @@ int ObMysqlProxy::alloc_client_pool(const bool is_meta_mysql_client,
   } else if (FALSE_IT(client_pool->inc_ref())) {
     // will dec_ref in destroy()
   } else if (OB_FAIL(client_pool->init(is_meta_mysql_client, user_name,
-             password, database, password1, client_pool_option))) {
+             password, database, cluster_name, password1, client_pool_option))) {
     LOG_WARN("fail to init client pool", K(user_name), K(password),
              K(database), K(is_meta_mysql_client), K(ret));
   } else {
@@ -851,14 +861,14 @@ int ObMysqlProxy::alloc_client_pool(const bool is_meta_mysql_client,
     client_pool_ = client_pool;
 
     // update raw mysql client info
-    ObClientReuqestInfo &info = raw_mysql_client_.get_request_info();
+    ObClientRequestInfo &info = raw_mysql_client_.get_request_info();
     info.reset_names();
     bool need_skip_stage2 = false;
     if (client_pool_option) {
       need_skip_stage2 = client_pool_option->need_skip_stage2_;
     }
     info.set_need_skip_stage2(need_skip_stage2);
-    if (OB_FAIL(info.set_names(user_name, password, database))) {
+    if (OB_FAIL(info.set_names(user_name, password, database, cluster_name))) {
       LOG_WARN("fail to set raw mysql client request info", K(ret));
     }
   }
diff --git a/src/obproxy/proxy/client/ob_mysql_proxy.h b/src/obproxy/proxy/client/ob_mysql_proxy.h
index 1f1d8f5c..f671d55f 100644
--- a/src/obproxy/proxy/client/ob_mysql_proxy.h
+++ b/src/obproxy/proxy/client/ob_mysql_proxy.h
@@ -57,6 +57,7 @@ class ObMysqlProxy
            const common::ObString &user_name,
            const common::ObString &password,
            const common::ObString &database,
+           const common::ObString &cluster_name = "",
            const common::ObString &password1 = "");
   bool is_inited() const { return is_inited_; }
   void destroy();
@@ -116,6 +117,7 @@ class ObMysqlProxy
                         const common::ObString &user_name,
                         const common::ObString &password,
                         const common::ObString &database,
+                        const common::ObString &cluster_name = "",
                         const common::ObString &password1 = "",
                         ClientPoolOption* client_pool_option = NULL);
 public:
diff --git a/src/obproxy/proxy/client/ob_raw_mysql_client.cpp b/src/obproxy/proxy/client/ob_raw_mysql_client.cpp
index 8bdbb589..08614b88 100644
--- a/src/obproxy/proxy/client/ob_raw_mysql_client.cpp
+++ b/src/obproxy/proxy/client/ob_raw_mysql_client.cpp
@@ -39,7 +39,7 @@ ObRawMysqlClientActor::ObRawMysqlClientActor()
      addr_(), request_buf_(NULL), request_reader_(NULL)
 {}
 
-int ObRawMysqlClientActor::init(ObClientReuqestInfo &info)
+int ObRawMysqlClientActor::init(ObClientRequestInfo &info)
 {
   int ret = OB_SUCCESS;
   if (OB_UNLIKELY(is_inited_)) {
@@ -149,7 +149,7 @@ int ObRawMysqlClientActor::connect(const ObAddr &addr, const int64_t timeout_ms)
     options.f_blocking_ = true; // blocking read or send
 
     ObIpEndpoint ip;
-    ops_ip_copy(ip.sa_, addr.get_ipv4(), static_cast<uint16_t>(addr.get_port()));
+    ip.assign(addr.get_sockaddr());
     if (OB_FAIL(con_.open(options))) {
       LOG_WARN("fail to open connection", K(ret));
     } else if (OB_FAIL(con_.connect(ip.sa_, options))) {
@@ -401,6 +401,7 @@ int ObRawMysqlClientActor::read_response(const ObMySQLCmd cmd)
 int ObRawMysqlClient::init(const ObString &user_name,
                            const ObString &password,
                            const ObString &database,
+                           const ObString &cluster_name,
                            const ObString &password1)
 {
   int ret = OB_SUCCESS;
@@ -412,7 +413,7 @@ int ObRawMysqlClient::init(const ObString &user_name,
     LOG_WARN("init twice", K_(is_inited), K(ret));
   } else if (OB_FAIL(mutex_init(&mutex_))) {
     LOG_WARN("fail to init mutex", K(ret));
-  } else if (OB_FAIL(info_.set_names(user_name, password, database, password1))) {
+  } else if (OB_FAIL(info_.set_names(user_name, password, database, cluster_name, password1))) {
     LOG_WARN("fail to set names", K(user_name), K(password), K(password1), K(database), K(ret));
     int tmp_ret = OB_SUCCESS;
     if (OB_SUCCESS != (tmp_ret = mutex_destroy(&mutex_))) {
diff --git a/src/obproxy/proxy/client/ob_raw_mysql_client.h b/src/obproxy/proxy/client/ob_raw_mysql_client.h
index 37ff9a54..f489aa10 100644
--- a/src/obproxy/proxy/client/ob_raw_mysql_client.h
+++ b/src/obproxy/proxy/client/ob_raw_mysql_client.h
@@ -33,7 +33,7 @@ class ObRawMysqlClientActor
   ObRawMysqlClientActor();
   ~ObRawMysqlClientActor() { destroy(); }
 
-  int init(ObClientReuqestInfo &info);
+  int init(ObClientRequestInfo &info);
   int sync_raw_execute(const char *sql, const int64_t timeout_ms, ObClientMysqlResp *&resp);
   void reset() { destroy(); }
   bool is_avail() { return is_avail_; }
@@ -51,7 +51,7 @@ class ObRawMysqlClientActor
 private:
   bool is_inited_;
   bool is_avail_;
-  ObClientReuqestInfo *info_;
+  ObClientRequestInfo *info_;
   ObClientMysqlResp *resp_;
   net::ObConnection con_;
   common::ObAddr addr_;
@@ -82,13 +82,14 @@ class ObRawMysqlClient
   int init(const common::ObString &user_name,
            const common::ObString &password,
            const common::ObString &database,
+           const common::ObString &cluster_name,
            const common::ObString &password1 = "");
 
   int sync_raw_execute(const char *sql, const int64_t timeout_ms, ObClientMysqlResp *&resp);
 
   int set_server_addr(const common::ObIArray<common::ObAddr> &addrs);
   int set_target_server(const common::ObIArray<ObProxyReplicaLocation> &replicas);
-  ObClientReuqestInfo &get_request_info() { return info_; }
+  ObClientRequestInfo &get_request_info() { return info_; }
 
   int disconnect();
   void destroy();
@@ -98,7 +99,7 @@ class ObRawMysqlClient
 private:
   static const int64_t DEFAULT_SERVER_ADDRS_COUNT = 3;
   bool is_inited_;
-  ObClientReuqestInfo info_;
+  ObClientRequestInfo info_;
   ObProxyReplicaLocation target_server_[DEFAULT_SERVER_ADDRS_COUNT];
   ObRawMysqlClientActor actor_;
   ObMutex mutex_;
diff --git a/src/obproxy/proxy/mysql/ob_mysql_client_session.cpp b/src/obproxy/proxy/mysql/ob_mysql_client_session.cpp
index 9018da7b..aae717e1 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_client_session.cpp
+++ b/src/obproxy/proxy/mysql/ob_mysql_client_session.cpp
@@ -63,19 +63,21 @@ ObMutex g_debug_cs_list_mutex;
 #endif
 
 ObMysqlClientSession::ObMysqlClientSession()
-    : can_direct_ok_(false), is_proxy_mysql_client_(false), active_(false), test_server_addr_(),
+    : can_direct_ok_(false), is_proxy_mysql_client_(false), can_direct_send_request_(false),
+      active_(false), test_server_addr_(),
       vc_ready_killed_(false), is_waiting_trans_first_request_(false),
       is_need_send_trace_info_(true), is_already_send_trace_info_(false),
-      is_first_handle_request_(true), is_in_trans_for_close_request_(false),
-      is_need_return_last_bound_ss_(false),
-      need_delete_cluster_(false), is_first_dml_sql_got_(false), compressed_seq_(0),
+      is_first_handle_request_(true), is_in_trans_for_close_request_(false), is_last_request_in_trans_(false),
+      is_trans_internal_routing_(false), is_need_return_last_bound_ss_(false), need_delete_cluster_(false),
+      is_first_dml_sql_got_(false), is_proxy_enable_trans_internal_routing_(false), compressed_seq_(0),
       cluster_resource_(NULL), dummy_entry_(NULL), is_need_update_dummy_entry_(false),
-      dummy_ldc_(),  dummy_entry_valid_time_ns_(0), server_state_version_(0),
+      dummy_ldc_(), dummy_entry_valid_time_ns_(0), server_state_version_(0),
       inner_request_param_(NULL), tcp_init_cwnd_set_(false), half_close_(false),
       conn_decrease_(false), conn_prometheus_decrease_(false), vip_connection_decrease_(false),
       magic_(MYSQL_CS_MAGIC_DEAD), create_thread_(NULL), is_local_connection_(false),
       client_vc_(NULL), in_list_stat_(LIST_INIT), current_tid_(-1),
-      cs_id_(0), proxy_sessid_(0), bound_ss_(NULL), cur_ss_(NULL), lii_ss_(NULL), last_bound_ss_(NULL), read_buffer_(NULL),
+      cs_id_(0), proxy_sessid_(0), bound_ss_(NULL), cur_ss_(NULL), lii_ss_(NULL), last_bound_ss_(NULL),
+      trans_coordinator_ss_addr_(), read_buffer_(NULL),
       buffer_reader_(NULL), mysql_sm_(NULL), read_state_(MCS_INIT), ka_vio_(NULL),
       server_ka_vio_(NULL), trace_stats_(NULL), select_plan_(NULL),
       ps_id_(0), cursor_id_(CURSOR_ID_START), using_ldg_(false)
@@ -157,13 +159,17 @@ void ObMysqlClientSession::destroy()
   is_already_send_trace_info_ = false;
   is_first_handle_request_ = true;
   is_in_trans_for_close_request_ = false;
+  is_last_request_in_trans_ = false;
+  is_trans_internal_routing_ = false;
   is_need_return_last_bound_ss_ = false;
   is_first_dml_sql_got_ = false;
+  is_proxy_enable_trans_internal_routing_ = false;
   compressed_seq_ = 0;
-
+  trans_coordinator_ss_addr_.reset();
   schema_key_.reset();
   ObProxyClientSession::cleanup();
   create_thread_ = NULL;
+  using_ldg_ = false;
   op_reclaim_free(this);
 }
 
@@ -369,17 +375,14 @@ int ObMysqlClientSession::new_connection(
             if (OB_FAIL(fetch_tenant_by_vip())) {
               PROXY_CS_LOG(WARN, "fail to fetch tenant by vip", K(ret));
               ret = OB_SUCCESS;
-            } else {
-              session_info_.set_is_read_only_user(ct_info_.vip_tenant_.is_read_only());
-              session_info_.set_is_request_follower_user(ct_info_.vip_tenant_.is_request_follower());
-              session_info_.set_vip_addr_name(ct_info_.vip_tenant_.vip_addr_.addr_);
+            } else if (is_vip_lookup_success()) {
               ObString user_name;
               if (!get_global_white_list_table_processor().can_ip_pass(
                 ct_info_.vip_tenant_.cluster_name_, ct_info_.vip_tenant_.tenant_name_,
-                user_name, client_addr.ip_.v4_, false)) {
+                user_name, client_vc_->get_real_client_addr())) {
                 ret = OB_ERR_CAN_NOT_PASS_WHITELIST;
                 PROXY_CS_LOG(DEBUG, "can not pass white_list", K(ct_info_.vip_tenant_.cluster_name_),
-                            K(ct_info_.vip_tenant_.tenant_name_), K(client_addr), K(ret));
+                             K(ct_info_.vip_tenant_.tenant_name_), K(client_addr), K(ret));
               }
             }
           }
@@ -406,15 +409,30 @@ int ObMysqlClientSession::new_connection(
 int ObMysqlClientSession::fetch_tenant_by_vip()
 {
   int ret = OB_SUCCESS;
-  if (OB_FAIL(get_global_vip_tenant_processor().get_vip_tenant(ct_info_.vip_tenant_))) {
-    //if login succ latter, we will desc cache miss stat.
-    MYSQL_SSN_INCREMENT_DYN_STAT(VIP_TO_TENANT_CACHE_MISS);
-    ct_info_.lookup_success_ = false;
-    PROXY_CS_LOG(INFO, "fail to get_vip_tenant", "vip_tenant", ct_info_.vip_tenant_, K(ret));
-  } else {
-    MYSQL_SSN_INCREMENT_DYN_STAT(VIP_TO_TENANT_CACHE_HIT);
-    ct_info_.lookup_success_ = true;
-    PROXY_CS_LOG(DEBUG, "succ to get_vip_tenant name", "vip_tenant", ct_info_.vip_tenant_);
+  ct_info_.lookup_success_ = false;
+  ObVipAddr addr = ct_info_.vip_tenant_.vip_addr_;
+  ObConfigItem tenant_item, cluster_item;
+  bool found = false;
+  if (OB_FAIL(get_global_config_processor().get_proxy_config_with_level(
+    addr, "", "", "proxy_tenant_name", tenant_item, "LEVEL_VIP", found))) {
+    PROXY_CS_LOG(WARN, "get proxy tenant name config failed", K(addr), K(ret));
+  } 
+
+  if (OB_SUCC(ret) && found) {
+    if (OB_FAIL(get_global_config_processor().get_proxy_config_with_level(
+      addr, "", "", "rootservice_cluster_name", cluster_item, "LEVEL_VIP", found))) {
+      PROXY_CS_LOG(WARN, "get cluster name config failed", K(addr), K(ret));
+    }
+  }
+
+  if (OB_SUCC(ret) && found) {
+    if (OB_FAIL(ct_info_.vip_tenant_.set_tenant_cluster(tenant_item.str(), cluster_item.str()))) {
+      PROXY_CS_LOG(WARN, "set tenant and cluster name failed", K(tenant_item), K(cluster_item), K(ret));
+    } else {
+      session_info_.set_vip_addr_name(addr.addr_);
+      ct_info_.lookup_success_ = true;
+      PROXY_CS_LOG(DEBUG, "succ to get conn info", "vip_tenant", ct_info_.vip_tenant_);
+    }
   }
   return ret;
 }
@@ -422,13 +440,9 @@ int ObMysqlClientSession::fetch_tenant_by_vip()
 int ObMysqlClientSession::get_vip_addr()
 {
   int ret = OB_SUCCESS;
-  int32_t ip;
-  int32_t port;
   int64_t vid;
-  ip = ntohl(client_vc_->get_virtual_ip());
-  port = static_cast<int32_t>(client_vc_->get_virtual_port());
   vid = static_cast<int64_t>(client_vc_->get_virtual_vid());
-  ct_info_.vip_tenant_.vip_addr_.set(ip, port, vid);
+  ct_info_.vip_tenant_.vip_addr_.set(client_vc_->get_virtual_addr(), vid);
 
   // TODO, get client ip, slb ip from kernal
 
@@ -580,6 +594,7 @@ int ObMysqlClientSession::create_scramble()
 
 uint64_t ObMysqlClientSession::get_next_proxy_sessid()
 {
+  // TODO: Consider IPv6 support
   static uint64_t next_proxy_sessid = 1;
   const ObAddr &addr = get_global_hot_upgrade_info().local_addr_;
   int64_t ipv4 = static_cast<int64_t>(addr.get_ipv4());
@@ -800,6 +815,8 @@ int ObMysqlClientSession::state_server_keep_alive(int event, void *data)
       case VC_EVENT_READ_READY:
       case VC_EVENT_EOS:
         // The server session closed or something is amiss
+      case VC_EVENT_DETECT_SERVER_DEAD:
+        // find server dead
 
       case VC_EVENT_ACTIVE_TIMEOUT:
       case VC_EVENT_INACTIVITY_TIMEOUT:
@@ -864,7 +881,8 @@ int ObMysqlClientSession::state_keep_alive(int event, void *data)
       // fallthrough
       case VC_EVENT_ERROR:
       case VC_EVENT_ACTIVE_TIMEOUT:
-      case VC_EVENT_INACTIVITY_TIMEOUT: {
+      case VC_EVENT_INACTIVITY_TIMEOUT:
+      case VC_EVENT_DETECT_SERVER_DEAD: {
         if (MCS_HALF_CLOSED == read_state_) {
           half_close_ = false;
         }
@@ -1411,7 +1429,8 @@ bool ObMysqlClientSession::is_authorised_proxysys(const ObProxyLoginUserType typ
   int ret = OB_SUCCESS;
 
   //1.check ip
-  if (!get_global_proxy_config().skip_proxy_sys_private_check
+  if (RUN_MODE_PROXY == g_run_mode
+      && !get_global_proxy_config().skip_proxy_sys_private_check
       && !ops_is_ip_private(client_vc_->get_remote_addr())
       && !ops_is_ip_loopback(client_vc_->get_remote_addr())) {
     char src_ip[INET6_ADDRSTRLEN];
@@ -1463,7 +1482,9 @@ bool ObMysqlClientSession::is_authorised_proxysys(const ObProxyLoginUserType typ
 
 bool ObMysqlClientSession::is_need_convert_vip_to_tname()
 {
-  return (get_global_proxy_config().need_convert_vip_to_tname && !this->is_proxy_mysql_client_ );
+  return (get_global_proxy_config().need_convert_vip_to_tname
+          && !this->is_proxy_mysql_client_
+          && RUN_MODE_PROXY == g_run_mode);
 }
 
 inline bool ObMysqlClientSession::need_close() const
@@ -1614,7 +1635,7 @@ int ObMysqlClientSession::check_update_ldc()
           } else {
             need_ignore = true;
           }
-          PROXY_CS_LOG(ERROR, "fail to tryrdlock server_state_lock, ignore this update",
+          PROXY_CS_LOG(WARN, "fail to tryrdlock server_state_lock, ignore this update",
                        K(err_no),
                        "old_idc_name", dummy_ldc_.get_idc_name(),
                        K(new_idc_name),
diff --git a/src/obproxy/proxy/mysql/ob_mysql_client_session.h b/src/obproxy/proxy/mysql/ob_mysql_client_session.h
index c3401c4b..d991d91f 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_client_session.h
+++ b/src/obproxy/proxy/mysql/ob_mysql_client_session.h
@@ -27,6 +27,7 @@
 #include "optimizer/ob_sharding_select_log_plan.h"
 #include "optimizer/ob_proxy_optimizer_processor.h"
 #include "iocore/net/ob_unix_net_vconnection.h"
+#include "ob_proxy_init.h"
 
 namespace oceanbase
 {
@@ -107,10 +108,12 @@ class ObMysqlClientSession : public ObProxyClientSession
   inline ObMysqlServerSession *get_cur_server_session() const { return cur_ss_; }
   inline ObMysqlServerSession *get_lii_server_session() const { return lii_ss_; }
   inline ObMysqlServerSession *get_last_bound_server_session() const { return last_bound_ss_; }
+  inline net::ObIpEndpoint &get_trans_coordinator_ss_addr() { return trans_coordinator_ss_addr_; }
   inline void set_server_session(ObMysqlServerSession *ssession) { bound_ss_ = ssession; }
   inline void set_cur_server_session(ObMysqlServerSession *ssession) { cur_ss_ = ssession; }
   inline void set_lii_server_session(ObMysqlServerSession *ssession) { lii_ss_ = ssession; }
   inline void set_last_bound_server_session(ObMysqlServerSession *ssession) { last_bound_ss_ = ssession; }
+  inline void set_trans_coordinator_ss_addr(const sockaddr &addr) { trans_coordinator_ss_addr_.assign(addr); }
   bool is_hold_conn_id(const uint32_t conn_id);
 
   // Functions for manipulating api hooks
@@ -133,13 +136,6 @@ class ObMysqlClientSession : public ObProxyClientSession
   //proxy inner mysql_client do need convert vip to tenant
   bool is_need_convert_vip_to_tname();
 
-  // client protocol judgement
-  ObProxyProtocol get_client_session_protocol() const
-  {
-    return session_info_.is_client_support_ob20_protocol() ?
-             ObProxyProtocol::PROTOCOL_OB20 : ObProxyProtocol::PROTOCOL_NORMAL;
-  }
-
   // client cap judgement
   bool is_client_support_full_link_trace() const { return session_info_.is_client_support_full_link_trace(); }
   bool is_client_support_new_extra_info() const { return session_info_.is_client_support_new_extra_info(); }
@@ -236,6 +232,7 @@ class ObMysqlClientSession : public ObProxyClientSession
 
   void set_need_delete_cluster() { need_delete_cluster_ = true; }
   void set_proxy_mysql_client() { is_proxy_mysql_client_ = true; }
+  void set_can_send_request() { can_direct_send_request_ = true; }
   void set_session_pool_client(bool is_session_pool_client) {
     session_info_.is_session_pool_client_ = is_session_pool_client;
   }
@@ -256,9 +253,14 @@ class ObMysqlClientSession : public ObProxyClientSession
   bool is_first_handle_request() const { return is_first_handle_request_; }
   void set_in_trans_for_close_request(bool is_in_trans_for_close_request) { is_in_trans_for_close_request_ = is_in_trans_for_close_request; }
   bool is_in_trans_for_close_request() const { return is_in_trans_for_close_request_; }
+  void set_last_request_in_trans(bool is_in_trans) { is_last_request_in_trans_ = is_in_trans; }
+  bool is_last_request_in_trans() { return is_last_request_in_trans_; }
+  void set_trans_internal_routing(bool is_internal_routing) { is_trans_internal_routing_ = is_internal_routing; }
+  bool is_trans_internal_routing() const { return is_trans_internal_routing_; }
   void set_need_return_last_bound_ss(bool is_need_return_last_bound_ss) { is_need_return_last_bound_ss_ = is_need_return_last_bound_ss; }
   bool is_need_return_last_bound_ss() const { return is_need_return_last_bound_ss_; }
-
+  void set_proxy_enable_trans_internal_routing(bool is_enable_internal_route) { is_proxy_enable_trans_internal_routing_ = is_enable_internal_route; }
+  bool is_proxy_enable_trans_internal_routing() const { return is_proxy_enable_trans_internal_routing_; }
   bool enable_analyze_internal_cmd() const { return session_info_.enable_analyze_internal_cmd(); }
   bool is_metadb_user() const { return session_info_.is_metadb_user(); }
   bool is_proxysys_user() const { return session_info_.is_proxysys_user(); }
@@ -332,6 +334,7 @@ class ObMysqlClientSession : public ObProxyClientSession
 
   bool can_direct_ok_;
   bool is_proxy_mysql_client_; // used for ObMysqlClient
+  bool can_direct_send_request_; // used for ObMysqlClient
   bool can_server_session_release_;  //used for session release
   proxy::ObCommonAddr common_addr_; // session pool server_addr
 
@@ -350,11 +353,13 @@ class ObMysqlClientSession : public ObProxyClientSession
   bool is_already_send_trace_info_;
   bool is_first_handle_request_;
   bool is_in_trans_for_close_request_;
+  bool is_last_request_in_trans_;
+  bool is_trans_internal_routing_;
   bool is_need_return_last_bound_ss_;
   bool need_delete_cluster_;
   bool is_first_dml_sql_got_;//default false, will route with merge status careless
                              //it is true after user first dml sql arrived.
-
+  bool is_proxy_enable_trans_internal_routing_; // from config, update each tranasction start
   uint8_t compressed_seq_;   // seq management between client & proxy
 
   obutils::ObClusterResource *cluster_resource_;
@@ -379,8 +384,6 @@ class ObMysqlClientSession : public ObProxyClientSession
 #endif
 
 private:
-  static const uint32_t LOCAL_IPV4_ADDR = 0x100007F;
-
   enum ObClientReadState
   {
     MCS_INIT = 0,
@@ -431,6 +434,9 @@ class ObMysqlClientSession : public ObProxyClientSession
   ObMysqlServerSession *lii_ss_;
   ObMysqlServerSession *last_bound_ss_;
 
+  // coordinator session address in transaction
+  net::ObIpEndpoint trans_coordinator_ss_addr_;
+
   event::ObMIOBuffer *read_buffer_;
   event::ObIOBufferReader *buffer_reader_;
 
@@ -459,11 +465,11 @@ class ObMysqlClientSession : public ObProxyClientSession
 
 inline void ObMysqlClientSession::set_local_connection()
 {
-  if (is_proxy_mysql_client_) {
+  if (is_proxy_mysql_client_ || RUN_MODE_CLIENT == g_run_mode) {
     is_local_connection_ = true;
   } else {
     if (OB_NOT_NULL(client_vc_)) {
-      is_local_connection_ = LOCAL_IPV4_ADDR == client_vc_->get_local_ip();
+      is_local_connection_ = net::ops_is_ip_loopback(client_vc_->get_local_addr());
     }
   }
 }
@@ -481,13 +487,13 @@ inline uint32_t ObMysqlClientSession::get_next_ps_stmt_id()
 inline common::ObAddr ObMysqlClientSession::get_real_client_addr(net::ObNetVConnection *server_vc)
 {
   common::ObAddr ret_addr;
-  if (is_proxy_mysql_client_) {
+  if (is_proxy_mysql_client_ || RUN_MODE_CLIENT == g_run_mode) {
     if (OB_NOT_NULL(server_vc)) {
-      ret_addr.set_ipv4_addr(ntohl(server_vc->get_local_ip()), server_vc->get_local_port());
+      ret_addr.set_sockaddr(server_vc->get_local_addr());
     }
   } else {
     if (OB_NOT_NULL(client_vc_)) {
-      ret_addr.set_ipv4_addr(ntohl(client_vc_->get_real_client_ip()), client_vc_->get_real_client_port());
+      ret_addr.set_sockaddr(client_vc_->get_real_client_addr());
     }
   }
   PROXY_CS_LOG(DEBUG, "succ to get real client addr", K(ret_addr));
diff --git a/src/obproxy/proxy/mysql/ob_mysql_debug_names.cpp b/src/obproxy/proxy/mysql/ob_mysql_debug_names.cpp
index 67c56fc6..2489e507 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_debug_names.cpp
+++ b/src/obproxy/proxy/mysql/ob_mysql_debug_names.cpp
@@ -68,6 +68,10 @@ const char *ObMysqlDebugNames::get_event_name(const int event)
       ret = "VC_EVENT_ACTIVE_TIMEOUT";
       break;
 
+    case VC_EVENT_DETECT_SERVER_DEAD:
+      ret = "VC_EVENT_DETECT_SERVER_DEAD";
+      break;
+
     case EVENT_INTERVAL:
       ret = "VC_EVENT_INTERVAL";
       break;
diff --git a/src/obproxy/proxy/mysql/ob_mysql_global_session_manager.cpp b/src/obproxy/proxy/mysql/ob_mysql_global_session_manager.cpp
index cc70732b..8216b465 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_global_session_manager.cpp
+++ b/src/obproxy/proxy/mysql/ob_mysql_global_session_manager.cpp
@@ -81,6 +81,7 @@ int ObMysqlServerSessionList::main_handler(int event, void *data)
     case VC_EVENT_ERROR:
     case VC_EVENT_INACTIVITY_TIMEOUT:
     case VC_EVENT_ACTIVE_TIMEOUT:
+    case VC_EVENT_DETECT_SERVER_DEAD:
       net_vc = static_cast<ObNetVConnection*>((static_cast<ObVIO*>(data))->vc_server_);
       break;
 
@@ -1042,4 +1043,4 @@ ObMysqlContJobList<SchemaKeyConnInfo>& get_global_server_conn_job_list()
 
 } // end of namespace proxy
 } // end of namespace obproxy
-} // end of namespace oceanbase
\ No newline at end of file
+} // end of namespace oceanbase
diff --git a/src/obproxy/proxy/mysql/ob_mysql_proxy_port.cpp b/src/obproxy/proxy/mysql/ob_mysql_proxy_port.cpp
index 3d602d94..24a794a0 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_proxy_port.cpp
+++ b/src/obproxy/proxy/mysql/ob_mysql_proxy_port.cpp
@@ -23,10 +23,16 @@ namespace obproxy
 {
 namespace proxy
 {
-ObMysqlProxyPort &get_global_proxy_port()
+ObMysqlProxyPort &get_global_proxy_ipv4_port()
 {
-  static ObMysqlProxyPort g_proxy_port;
-  return g_proxy_port;
+  static ObMysqlProxyPort g_proxy_ipv4_port;
+  return g_proxy_ipv4_port;
+}
+
+ObMysqlProxyPort &get_global_proxy_ipv6_port()
+{
+  static ObMysqlProxyPort g_proxy_ipv6_port;
+  return g_proxy_ipv6_port;
 }
 
 void ObMysqlProxyPort::reset()
diff --git a/src/obproxy/proxy/mysql/ob_mysql_proxy_port.h b/src/obproxy/proxy/mysql/ob_mysql_proxy_port.h
index 45fb1afb..f94c93b9 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_proxy_port.h
+++ b/src/obproxy/proxy/mysql/ob_mysql_proxy_port.h
@@ -55,7 +55,8 @@ struct ObMysqlProxyPort
   net::ObIpAddr inbound_ip_;
 };
 
-ObMysqlProxyPort &get_global_proxy_port();
+ObMysqlProxyPort &get_global_proxy_ipv4_port();
+ObMysqlProxyPort &get_global_proxy_ipv6_port();
 
 } // end of namespace proxy
 } // end of namespace obproxy
diff --git a/src/obproxy/proxy/mysql/ob_mysql_proxy_server_main.cpp b/src/obproxy/proxy/mysql/ob_mysql_proxy_server_main.cpp
index 80953a0b..59ab305f 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_proxy_server_main.cpp
+++ b/src/obproxy/proxy/mysql/ob_mysql_proxy_server_main.cpp
@@ -22,9 +22,11 @@
 #include "iocore/eventsystem/ob_blocking_task.h"
 #include "iocore/eventsystem/ob_grpc_task.h"
 #include "iocore/eventsystem/ob_shard_watch_task.h"
+#include "iocore/eventsystem/ob_shard_scan_all_task.h"
 #include "obutils/ob_congestion_manager.h"
 #include "obutils/ob_proxy_config.h"
 #include "dbconfig/ob_proxy_db_config_processor.h"
+#include "ob_proxy_init.h"
 
 using namespace oceanbase::common;
 using namespace oceanbase::obproxy::event;
@@ -41,7 +43,8 @@ namespace proxy
 {
 
 // global acceptor, ObMysqlProxyAccept
-ObMysqlProxyAcceptor g_mysql_proxy_acceptor;
+ObMysqlProxyAcceptor g_mysql_proxy_ipv4_acceptor;
+ObMysqlProxyAcceptor g_mysql_proxy_ipv6_acceptor;
 
 // called from ob_api.cpp
 int ObMysqlProxyServerMain::make_net_accept_options(
@@ -105,7 +108,7 @@ int ObMysqlProxyServerMain::init_mysql_proxy_server(const ObMysqlConfigParams &c
   // enable reclaim mysql sm
   op_reclaim_sparse_opt(ObMysqlSM, ObMysqlSM::instantiate_func, ENABLE_RECLAIM, 1);
 
-  if (OB_FAIL(init_mysql_proxy_port(config_params))) {
+  if (RUN_MODE_PROXY == g_run_mode && OB_FAIL(init_mysql_proxy_port(config_params))) {
     LOG_ERROR("fail to init mysql proxy port", K(ret));
   } else if (OB_FAIL(init_mysql_stats())) {
     LOG_ERROR("fail to init_mysql_stats", K(ret));
@@ -119,11 +122,23 @@ int ObMysqlProxyServerMain::init_mysql_proxy_server(const ObMysqlConfigParams &c
   }
 #endif
 
-  if (OB_SUCC(ret)) {
+  int64_t ip_mode = config_params.ip_listen_mode_;
+  bool enable_ipv4 = (ip_mode == 1 || ip_mode == 3);
+  bool enable_ipv6 = (ip_mode == 2 || ip_mode == 3);
+
+  if (OB_SUCC(ret) && enable_ipv4) {
     // do the configuration defined ports
     if (OB_FAIL(make_mysql_proxy_acceptor(config_params,
-                                          get_global_proxy_port(),
-                                          g_mysql_proxy_acceptor))) {
+                                          get_global_proxy_ipv4_port(),
+                                          g_mysql_proxy_ipv4_acceptor))) {
+      LOG_ERROR("fail to make mysql proxy acceptor", K(ret));
+    }
+  }
+
+  if (OB_SUCC(ret) && enable_ipv6) {
+    if (OB_FAIL(make_mysql_proxy_acceptor(config_params,
+                                          get_global_proxy_ipv6_port(),
+                                          g_mysql_proxy_ipv6_acceptor))) {
       LOG_ERROR("fail to make mysql proxy acceptor", K(ret));
     }
   }
@@ -133,15 +148,23 @@ int ObMysqlProxyServerMain::init_mysql_proxy_server(const ObMysqlConfigParams &c
 int ObMysqlProxyServerMain::start_mysql_proxy_acceptor()
 {
   int ret = OB_SUCCESS;
-  ObMysqlProxyPort &proxy_port = get_global_proxy_port();
+  int64_t ip_mode = get_global_proxy_config().ip_listen_mode;
+  bool enable_ipv4 = (ip_mode == 1 || ip_mode == 3);
+  bool enable_ipv6 = (ip_mode == 2 || ip_mode == 3);
   // start accepting connections
   // although we make a good pretence here, I don't believe that ObNetProcessor::main_accept()
   // ever actually returns NULL. It would be useful to be able to detect errors
   // and spew them here though.
-  if (OB_ISNULL(g_net_processor.main_accept(*(g_mysql_proxy_acceptor.accept_), proxy_port.fd_,
-                                            g_mysql_proxy_acceptor.net_opt_))) {
+  if (enable_ipv4 && OB_ISNULL(g_net_processor.main_accept(*(g_mysql_proxy_ipv4_acceptor.accept_),
+                                                           get_global_proxy_ipv4_port().fd_,
+                                                           g_mysql_proxy_ipv4_acceptor.net_opt_))) {
     ret = OB_ERR_UNEXPECTED;
-    LOG_ERROR("fail to execute main accept", K(ret));
+    LOG_ERROR("fail to execute ipv4 main accept", K(ret));
+  } else if (enable_ipv6 && OB_ISNULL(g_net_processor.main_accept(*(g_mysql_proxy_ipv6_acceptor.accept_),
+                                                            get_global_proxy_ipv6_port().fd_,
+                                                            g_mysql_proxy_ipv6_acceptor.net_opt_))) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_ERROR("fail to execute ipv6 main accept", K(ret));
   }
 
   return ret;
@@ -161,6 +184,7 @@ int ObMysqlProxyServerMain::start_processor_threads(const ObMysqlConfigParams &c
   int ret = OB_SUCCESS;
   int64_t stack_size = config_params.stack_size_;
   int64_t event_threads = config_params.work_thread_num_;
+  int64_t shard_scan_threads = config_params.shard_scan_thread_num_;
   int64_t task_threads = config_params.task_thread_num_;
   bool enable_cpu_topology = config_params.enable_cpu_topology_;
   bool automatic_match_work_thread = config_params.automatic_match_work_thread_;
@@ -188,6 +212,11 @@ int ObMysqlProxyServerMain::start_processor_threads(const ObMysqlConfigParams &c
   } else if (get_global_proxy_config().enable_sharding
       && OB_FAIL(g_shard_watch_task_processor.start(grpc_watch_threads, stack_size))) {
     LOG_ERROR("fail to start grpc parent task processor", K(stack_size), K(ret));
+  } else if (get_global_proxy_config().enable_sharding
+      && OB_FAIL(g_shard_scan_all_task_processor.start(shard_scan_threads > 0 ? shard_scan_threads
+                                                       : g_event_processor.thread_count_for_type_[ET_CALL] / 2,
+                                                       stack_size))) {
+    LOG_ERROR("fail to start grpc parent task processor", K(stack_size), K(ret));
   } else if (OB_FAIL(init_cs_map_for_thread())) {
     LOG_ERROR("fail to init cs_map for thread", K(ret));
   } else if (OB_FAIL(init_table_map_for_thread())) {
@@ -210,30 +239,60 @@ int ObMysqlProxyServerMain::start_processor_threads(const ObMysqlConfigParams &c
   return ret;
 }
 
+int ObMysqlProxyServerMain::init_inherited_info(ObMysqlProxyPort &proxy_port, const int fd)
+{
+  int ret = OB_SUCCESS;
+  proxy_port.fd_ = fd;
+  struct sockaddr_storage sock_addr;
+  int64_t namelen = sizeof(sock_addr);
+  memset(&sock_addr, 0, namelen);
+  if (OB_FAIL(ObSocketManager::getsockname(proxy_port.fd_, (struct sockaddr*)(&sock_addr), &namelen))) {
+    LOG_ERROR("fail to get sock name", K(ret));
+  } else {
+    // This step of conversion is mainly to obtain the port number, sockaddr_in and sockaddr_in6 port number positions are compatible
+    struct sockaddr_in *ain = (sockaddr_in *)&sock_addr;
+    proxy_port.inbound_ip_.assign(*(struct sockaddr*)(&sock_addr));
+    proxy_port.port_ = static_cast<in_port_t>((ntohs)(ain->sin_port));
+    LOG_INFO("succ init mysql proxy port by inherited fd", K(proxy_port));
+  }
+  return ret;
+}
+
 int ObMysqlProxyServerMain::init_mysql_proxy_port(const ObMysqlConfigParams &config_params)
 {
   int ret = OB_SUCCESS;
-  ObMysqlProxyPort &proxy_port = get_global_proxy_port();
+  ObMysqlProxyPort &proxy_ipv4_port = get_global_proxy_ipv4_port();
+  ObMysqlProxyPort &proxy_ipv6_port = get_global_proxy_ipv6_port();
   const ObHotUpgraderInfo &info = get_global_hot_upgrade_info();
+  int64_t ip_mode = config_params.ip_listen_mode_;
+  bool enable_ipv4 = (ip_mode == 1 || ip_mode == 3);
+  bool enable_ipv6 = (ip_mode == 2 || ip_mode == 3);
 
   // init from inherited fd
   if (info.is_inherited_) {
-    proxy_port.fd_ = info.fd_;
-    struct sockaddr sock_addr;
-    int64_t namelen = sizeof(sock_addr);
-    memset(&sock_addr, 0, namelen);
-    if (OB_FAIL(ObSocketManager::getsockname(proxy_port.fd_, &sock_addr , &namelen))) {
-      LOG_ERROR("fail to get sock name", K(ret), K(ret));
-    } else {
-      struct sockaddr_in *ain = (sockaddr_in *)&sock_addr;
-      proxy_port.inbound_ip_.assign(sock_addr);
-      proxy_port.port_ = static_cast<in_port_t>((ntohs)(ain->sin_port));
-      LOG_INFO("succ init mysql proxy port by inherited fd", K(proxy_port));
+    if (enable_ipv4) {
+      if (OB_FAIL(init_inherited_info(proxy_ipv4_port, info.ipv4_fd_))) {
+        LOG_WARN("fail to init inherited info", K(ret));
+      }
+    }
+
+    if (OB_SUCC(ret) && enable_ipv6) {
+      if (OB_FAIL(init_inherited_info(proxy_ipv6_port, info.ipv6_fd_))) {
+        LOG_WARN("fail to init inherited info", K(ret));
+      }
     }
   } else { // init from config
-    proxy_port.port_ = static_cast<in_port_t>(config_params.listen_port_);
-    proxy_port.inbound_ip_ = config_params.local_bound_ip_;
-    LOG_INFO("succ init mysql proxy port by config", K(proxy_port));
+    if (enable_ipv4) {
+      proxy_ipv4_port.port_ = static_cast<in_port_t>(config_params.listen_port_);
+      proxy_ipv4_port.inbound_ip_ = config_params.local_bound_ip_;
+      LOG_INFO("succ init mysql proxy ipv4 port by config", K(proxy_ipv4_port));
+    }
+
+    if (enable_ipv6) {
+      proxy_ipv6_port.port_ = static_cast<in_port_t>(config_params.listen_port_);
+      proxy_ipv6_port.inbound_ip_ = config_params.local_bound_ipv6_ip_;
+      LOG_INFO("succ init mysql proxy ipv6 port by config", K(proxy_ipv6_port));
+    }
   }
   return ret;
 }
diff --git a/src/obproxy/proxy/mysql/ob_mysql_proxy_server_main.h b/src/obproxy/proxy/mysql/ob_mysql_proxy_server_main.h
index 290d2127..01195d51 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_proxy_server_main.h
+++ b/src/obproxy/proxy/mysql/ob_mysql_proxy_server_main.h
@@ -70,6 +70,7 @@ class ObMysqlProxyServerMain
   static int start_processor_threads(const ObMysqlConfigParams &config_params);
 
   static int init_mysql_proxy_port(const ObMysqlConfigParams &config_params);
+  static int init_inherited_info(ObMysqlProxyPort &proxy_port, const int fd);
 };
 
 } // end of namespace proxy
diff --git a/src/obproxy/proxy/mysql/ob_mysql_server_session.cpp b/src/obproxy/proxy/mysql/ob_mysql_server_session.cpp
index 051d571b..7409bb54 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_server_session.cpp
+++ b/src/obproxy/proxy/mysql/ob_mysql_server_session.cpp
@@ -15,6 +15,7 @@
 #include "prometheus/ob_sql_prometheus.h"
 #include "proxy/mysql/ob_mysql_global_session_manager.h"
 #include "obutils/ob_proxy_config.h"
+#include "utils/ob_proxy_table_define.h"
 
 using namespace oceanbase::common;
 using namespace oceanbase::obproxy::event;
@@ -142,7 +143,15 @@ void ObMysqlServerSession::do_io_shutdown(const ShutdownHowToType howto)
 
 void ObMysqlServerSession::do_io_close(const int alerrno)
 {
-  PROXY_SS_LOG(INFO, "server session do_io_close", K(*this), KP(server_vc_), KP(this));
+  bool need_print = true;
+  if(NULL != client_session_ &&
+     client_session_->get_session_info().get_priv_info().user_name_ == ObProxyTableInfo::DETECT_USERNAME_USER) {
+    need_print = false;
+  }
+
+  if (need_print) {
+    PROXY_SS_LOG(INFO, "server session do_io_close", K(*this), KP(server_vc_), KP(this));
+  }
   if (MSS_ACTIVE == state_) {
     MYSQL_DECREMENT_DYN_STAT(CURRENT_SERVER_TRANSACTIONS);
     --server_trans_stat_;
@@ -174,9 +183,14 @@ void ObMysqlServerSession::do_io_close(const int alerrno)
     if (this == client_session_->get_last_bound_server_session()) {
       client_session_->set_last_bound_server_session(NULL);
     }
-    PROXY_SS_LOG(INFO, "server session is closing", K_(ss_id), K_(server_sessid), K_(server_ip),
-                 "cs_id", client_session_->get_cs_id(),
-                 "proxy_sessid", client_session_->get_proxy_sessid());
+    if (server_ip_ == client_session_->get_trans_coordinator_ss_addr()) {
+      client_session_->get_trans_coordinator_ss_addr().reset();
+    }
+    if (need_print) {
+      PROXY_SS_LOG(INFO, "server session is closing", K_(ss_id), K_(server_sessid), K_(server_ip),
+          "cs_id", client_session_->get_cs_id(),
+          "proxy_sessid", client_session_->get_proxy_sessid());
+    }
   } else {
     PROXY_SS_LOG(INFO, "server session has not bound to client session", K(*this));
   }
diff --git a/src/obproxy/proxy/mysql/ob_mysql_session_manager.cpp b/src/obproxy/proxy/mysql/ob_mysql_session_manager.cpp
index 44f4bb27..01741a12 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_session_manager.cpp
+++ b/src/obproxy/proxy/mysql/ob_mysql_session_manager.cpp
@@ -187,6 +187,7 @@ int ObServerSessionPool::event_handler(int event, void *data)
       case VC_EVENT_ERROR:
       case VC_EVENT_INACTIVITY_TIMEOUT:
       case VC_EVENT_ACTIVE_TIMEOUT:
+      case VC_EVENT_DETECT_SERVER_DEAD:
         net_vc = static_cast<ObNetVConnection*>((static_cast<ObVIO*>(data))->vc_server_);
         break;
 
diff --git a/src/obproxy/proxy/mysql/ob_mysql_sm.cpp b/src/obproxy/proxy/mysql/ob_mysql_sm.cpp
index 560b37ca..3297af19 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_sm.cpp
+++ b/src/obproxy/proxy/mysql/ob_mysql_sm.cpp
@@ -68,12 +68,15 @@
 #include "omt/ob_conn_table_processor.h"
 #include "omt/ob_ssl_config_table_processor.h"
 #include "iocore/net/ob_inet.h"
+#include "iocore/eventsystem/ob_shard_scan_all_task.h"
 #include "prometheus/ob_thread_prometheus.h"
+#include "ob_proxy_init.h"
 #include "common/obsm_utils.h"
 #include "proxy/mysqllib/ob_proxy_ob20_request.h"
 #include "proxy/mysqllib/ob_mysql_resp_analyzer.h"
 #include "obproxy/packet/ob_proxy_packet_writer.h"
 #include "obproxy/cmd/ob_internal_cmd_processor.h"
+#include "engine/ob_proxy_operator_cont.h"
 
 using namespace oceanbase::share;
 using namespace oceanbase::common;
@@ -198,7 +201,8 @@ ObMysqlSM::ObMysqlSM()
       need_renew_cluster_resource_(false), is_in_trans_(true),
       retry_acquire_server_session_count_(0), start_acquire_server_session_time_(0),
       skip_plugin_(false), add_detect_server_cnt_(false), enable_cloud_full_username_(false),
-      enable_client_ssl_(false), enable_server_ssl_(false), config_version_(0)
+      enable_client_ssl_(false), enable_server_ssl_(false), enable_read_write_split_(false),
+      enable_transaction_split_(false), enable_ob_protocol_v2_(false), config_version_(0), target_db_server_(NULL)
 {
   static bool scatter_inited = false;
 
@@ -230,6 +234,10 @@ inline void ObMysqlSM::cleanup()
     sm_cluster_resource_->dec_ref();
     sm_cluster_resource_ = NULL;
   }
+  if (OB_NOT_NULL(target_db_server_)) {
+    op_free(target_db_server_);
+    target_db_server_ = NULL;
+  }
 }
 
 inline void ObMysqlSM::destroy()
@@ -478,29 +486,6 @@ inline int ObMysqlSM::setup_client_request_read()
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("client session failed to do_io_read", K_(sm_id), K(ret));
   } else {
-    // consume the ob20 tail crc(4) in client buf reader while analyzed all the mysql packet in ob20 payload
-    ObClientSessionInfo &client_session_info = get_client_session()->get_session_info();
-    
-    ObProxyProtocol client_proto = get_client_session_protocol();
-    bool ob20_req_received_done = client_session_info.ob20_request_.ob20_request_received_done_;
-    int64_t ob20_req_remain_payload_len = client_session_info.ob20_request_.remain_payload_len_;
-    LOG_DEBUG("setup client req read", K(client_proto), K(ob20_req_received_done), K(ob20_req_remain_payload_len));
-    
-    if (client_proto == ObProxyProtocol::PROTOCOL_OB20
-        && ob20_req_received_done
-        && ob20_req_remain_payload_len == 0) {
-      client_session_info.ob20_request_.reset();
-      LOG_DEBUG("setup client request read consume ob20 tail crc len 4");
-      int64_t read_avail = client_buffer_reader_->read_avail();
-      if (OB_LIKELY(read_avail >= OB20_PROTOCOL_TAILER_LENGTH)) {
-        if (OB_FAIL(client_buffer_reader_->consume(OB20_PROTOCOL_TAILER_LENGTH))) {
-          LOG_WARN("fail to consume the last crc buffer in client request buffer", K(ret));
-        }
-      } else {
-        LOG_DEBUG("client buffer reader has consumed all, no need consume the tail 4 crc in buffer", K(read_avail));
-      }
-    }
-
     if (OB_SUCC(ret)) {
       int64_t read_avail = client_buffer_reader_->read_avail();
       if (read_avail > 0
@@ -543,6 +528,9 @@ int ObMysqlSM::state_client_request_read(int event, void *data)
         milestones_.trans_start_ = get_based_hrtime();
       }
     }
+
+    // record the config of enable_transaction_internal_routing
+    client_session_->set_proxy_enable_trans_internal_routing(trans_state_.mysql_config_params_->enable_transaction_internal_routing_ && is_enable_ob_protocol_v2());
   }
 
   if (OB_UNLIKELY(get_global_performance_params().enable_trace_)) {
@@ -597,7 +585,8 @@ int ObMysqlSM::state_client_request_read(int event, void *data)
       }
 
       case VC_EVENT_ERROR:
-      case VC_EVENT_ACTIVE_TIMEOUT: {
+      case VC_EVENT_ACTIVE_TIMEOUT:
+      case VC_EVENT_DETECT_SERVER_DEAD: {
         LOG_WARN("ObMysqlSM::state_client_request_read", "event",
                  ObMysqlDebugNames::get_event_name(event), K_(sm_id),
                  "client_vc", client_session_ == NULL ? "NULL" : P(client_session_->get_netvc()));
@@ -615,7 +604,8 @@ int ObMysqlSM::state_client_request_read(int event, void *data)
   }
 
 
-  if (OB_SUCC(ret) && !client_session_->is_proxy_mysql_client_) {
+  if (OB_SUCC(ret) && !client_session_->is_proxy_mysql_client_
+      && RUN_MODE_PROXY == g_run_mode) {
     ObNetVConnection *vc = client_session_->get_netvc();
 
     if (OB_UNLIKELY(NULL != vc && vc->options_.sockopt_flags_ != trans_state_.mysql_config_params_->client_sock_option_flag_out_)) {
@@ -772,8 +762,8 @@ int ObMysqlSM::state_client_request_read(int event, void *data)
         set_client_wait_timeout();
 
         // no request data to read, reset read trigger and avoid unnecessary reading
-        ObUnixNetVConnection* vc = static_cast<ObUnixNetVConnection *>(client_session_->get_netvc());
         if (!client_session_->is_proxy_mysql_client_) {
+          ObUnixNetVConnection* vc = static_cast<ObUnixNetVConnection *>(client_session_->get_netvc());
           if (!handling_ssl_request_) {
             vc->reset_read_trigger();
           }
@@ -908,6 +898,7 @@ int ObMysqlSM::state_handle_shard_ddl(int event, void *data)
     case VC_EVENT_EOS:
     case VC_EVENT_ACTIVE_TIMEOUT:
     case VC_EVENT_INACTIVITY_TIMEOUT:
+    case VC_EVENT_DETECT_SERVER_DEAD:
       LOG_WARN("handle shard ddl meet error, will disconnect", K_(sm_id),
                "event", ObMysqlDebugNames::get_event_name(event), K(ret));
       ret = OB_CONNECT_ERROR;
@@ -953,18 +944,20 @@ int ObMysqlSM::process_shard_ddl_result(ObShardDDLStatus *ddl_status)
   }
 
   if (OB_SUCC(ret)) {
+    ObProxyProtocol client_protocol = get_client_session_protocol();
     ObMysqlClientSession *client_session = get_client_session();
+    
     if (ddl_status->is_success()) {
       const ObMySQLCapabilityFlags &capability = client_session->get_session_info().get_orig_capability_flags();
-      if (OB_FAIL(ObMysqlPacketUtil::encode_ok_packet(*buf, seq, 0, capability))) {
-        LOG_WARN("[ObMysqlSM::do_internal_request] fail to encode login response ok packet",
+      if (OB_FAIL(ObProxyPacketWriter::write_ok_packet(*buf, *client_session_, client_protocol, seq, 0, capability))) {
+        LOG_WARN("[ObMysqlSM::do_internal_request] fail to encode shard ddl ok packet",
                  K_(sm_id), K(ret));
       }
     } else {
       int64_t error_code = 0;
       if (OB_FAIL(get_int_value(ddl_status->get_error_code(), error_code))) {
         LOG_WARN("fail to get int error code", "errcode", ddl_status->get_error_code(), K(ret));
-      } else if (OB_FAIL(ObProxyPacketWriter::write_error_packet(*buf, client_session,
+      } else if (OB_FAIL(ObProxyPacketWriter::write_error_packet(*buf, client_session, client_protocol,
                                                                  seq, static_cast<int>(-error_code),
                                                                  ddl_status->get_error_message()))) {
         LOG_WARN("fail to encode err pacekt buf", K(seq), "errmsg", ddl_status->get_error_message(),
@@ -987,19 +980,17 @@ int ObMysqlSM::setup_handle_execute_plan()
 
   ObShardingSelectLogPlan* plan = NULL;
   ObProxyOperator* operator_root = NULL;
+  ObProxyOperatorCont *operator_cont = NULL;
 
+  ObProxyMysqlRequest &client_request = trans_state_.trans_info_.client_request_;
   int64_t total_len = client_buffer_reader_->read_avail();
-  if (total_len > trans_state_.trans_info_.client_request_.get_packet_meta().pkt_len_) {
-    total_len = trans_state_.trans_info_.client_request_.get_packet_meta().pkt_len_;
+  if (total_len > client_request.get_packet_meta().pkt_len_) {
+    total_len = client_request.get_packet_meta().pkt_len_;
   }
 
-  ObShardProp *shard_prop = client_session_->get_session_info().get_shard_prop();
-  ObHRTime execute_timeout = 0;
-  if (OB_NOT_NULL(shard_prop)) {
-    execute_timeout = HRTIME_MSECONDS(shard_prop->get_socket_timeout());
-  } else {
-    execute_timeout = client_session_->get_session_info().get_query_timeout();
-  }
+  uint8_t seq = static_cast<uint8_t>(client_request.get_packet_meta().pkt_seq_ + 1);
+
+  ObHRTime execute_timeout = get_query_timeout();
 
   // consume data in client buffer reader
   if (OB_FAIL(client_buffer_reader_->consume(total_len))) {
@@ -1013,16 +1004,23 @@ int ObMysqlSM::setup_handle_execute_plan()
   } else if (OB_NOT_NULL(pending_action_)){
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("pending_action must be NULL here", K_(pending_action), K_(sm_id), K(ret));
-  } else if (OB_FAIL(operator_root->open(this, pending_action_, hrtime_to_msec(execute_timeout)))) {
-    LOG_WARN("fail to open operator", K_(sm_id), K(execute_timeout), K(ret));
-  } else if (OB_FAIL(operator_root->get_next_row())) {
-    LOG_WARN("fail to get next row", K_(sm_id), K(ret));
-  } else if (OB_ISNULL(pending_action_)) {
-    LOG_WARN("pending action should not be null", K_(sm_id), K(ret));
+  } else if (OB_ISNULL(operator_cont = new(std::nothrow) ObProxyOperatorCont(this, &self_ethread()))) {
+    LOG_WARN("fail to alloc parallel execute cont", K(ret));
+  } else if (OB_FAIL(operator_cont->init(operator_root, seq, hrtime_to_msec(execute_timeout)))) {
+    LOG_WARN("fail to init execute cont", K(ret));
+  } else if (OB_ISNULL(g_shard_scan_all_task_processor.schedule_imm(operator_cont, ET_SHARD_SCAN_ALL))) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("fail to schedule parallel execute cont", K(ret));
   } else {
+    pending_action_ = &operator_cont->get_action();
     client_session_->set_inactivity_timeout(execute_timeout);
   }
 
+  if (OB_FAIL(ret) && OB_LIKELY(NULL != operator_cont)) {
+    operator_cont->destroy();
+    operator_cont = NULL;
+  }
+
   return ret;
 }
 
@@ -1034,14 +1032,14 @@ int ObMysqlSM::state_handle_execute_plan(int event, void *data)
 
   ObShardingSelectLogPlan* plan = NULL;
   ObProxyOperator* operator_root = NULL;
-  pending_action_ = NULL;
 
   switch (event) {
-    case VC_EVENT_READ_COMPLETE:
+    case ASYNC_PROCESS_DONE_EVENT:
+      pending_action_ = NULL;
       if (OB_ISNULL(data)) {
         ret = OB_ERR_NULL_VALUE;
         LOG_WARN("data is NULL", K_(sm_id), K(ret));
-      } else if (OB_FAIL(process_executor_result(reinterpret_cast<ObProxyResultResp*>(data)))) {
+      } else if (OB_FAIL(process_executor_result(reinterpret_cast<ObIOBufferReader*>(data)))) {
         LOG_WARN("fail to process executor result, will disconnect", K_(sm_id), K(ret));
       } else {
         trans_state_.next_action_ = ObMysqlTransact::SM_ACTION_INTERNAL_NOOP;
@@ -1051,6 +1049,7 @@ int ObMysqlSM::state_handle_execute_plan(int event, void *data)
     case VC_EVENT_EOS:
     case VC_EVENT_ACTIVE_TIMEOUT:
     case VC_EVENT_INACTIVITY_TIMEOUT:
+    case VC_EVENT_DETECT_SERVER_DEAD:
       LOG_WARN("handle execute plan meet error, will disconnect", K_(sm_id),
               "event", ObMysqlDebugNames::get_event_name(event), K(ret));
       ret = OB_CONNECT_ERROR;
@@ -1067,9 +1066,23 @@ int ObMysqlSM::state_handle_execute_plan(int event, void *data)
     }
   }
 
+  if (OB_NOT_NULL(pending_action_)) {
+    int tmp_ret = OB_SUCCESS;
+    if (OB_SUCCESS != (tmp_ret = pending_action_->cancel())) {
+      LOG_WARN("failed to cancel pending action", K_(pending_action), K_(sm_id), K(tmp_ret));
+    }
+
+    if (OB_SUCC(ret)) {
+      ret = tmp_ret;
+    }
+    pending_action_ = NULL;
+  }
+
   if (OB_ISNULL(plan = client_session_->get_sharding_select_log_plan())) {
+    ret = OB_ERR_UNEXPECTED;
     LOG_WARN("select log plan should not be null", K_(sm_id), K(ret));
   } else if (OB_ISNULL(operator_root = plan->get_plan_root())) {
+    ret = OB_ERR_UNEXPECTED;
     LOG_WARN("operator should not be null", K_(sm_id), K(ret));
   } else {
     operator_root->close();
@@ -1084,12 +1097,10 @@ int ObMysqlSM::state_handle_execute_plan(int event, void *data)
   return VC_EVENT_NONE;
 }
 
-int ObMysqlSM::process_executor_result(ObProxyResultResp *result_resp)
+int ObMysqlSM::process_executor_result(ObIOBufferReader *resp_reader)
 {
   int ret = OB_SUCCESS;
 
-  ObProxyMysqlRequest &client_request = trans_state_.trans_info_.client_request_;
-  uint8_t seq = static_cast<uint8_t>(client_request.get_packet_meta().pkt_seq_ + 1);
   ObMIOBuffer *buf = NULL;
 
   if (NULL != trans_state_.internal_buffer_) {
@@ -1104,15 +1115,33 @@ int ObMysqlSM::process_executor_result(ObProxyResultResp *result_resp)
 
   if (OB_SUCC(ret)) {
     ObMysqlClientSession *client_session = get_client_session();
-    if (result_resp->is_resultset_resp()) {
-      if (OB_FAIL(ObProxyPacketWriter::write_executor_resp_packet(buf, client_session, seq, result_resp))) {
-        LOG_WARN("fail to build shard scan resp", K(ret));
+    ObProxyProtocol client_protocol = get_client_session_protocol();
+
+    if (client_protocol == ObProxyProtocol::PROTOCOL_OB20) {
+      Ob20ProtocolHeader &ob20_head = client_session->get_session_info().ob20_request_.ob20_header_;
+      uint8_t compressed_seq = static_cast<uint8_t>(client_session->get_compressed_seq() + 1); 
+      Ob20ProtocolHeaderParam ob20_head_param(client_session->get_cs_id(), ob20_head.request_id_, compressed_seq,
+                                              compressed_seq, true, false, false,
+                                              client_session->is_client_support_new_extra_info(),
+                                              client_session->is_trans_internal_routing());
+      if (OB_FAIL(ObProto20Utils::consume_and_compress_data(resp_reader, buf,
+                                                            resp_reader->read_avail(), ob20_head_param))) {
+        LOG_WARN("fail to consume and compress data for executor response packet in ob20", K(ret));
+      } else {
+        LOG_DEBUG("succ to executor response in ob20 packet");
       }
     } else {
-      if (OB_FAIL(ObProxyPacketWriter::write_error_packet(*buf, client_session, seq, result_resp->get_err_code(),
-                                                          result_resp->get_err_msg()))) {
-        LOG_WARN("fail to encode err pacekt buf", K(seq), "errmsg", result_resp->get_err_msg(),
-                 "errcode", result_resp->get_err_code(), K(ret));
+      int64_t data_size = resp_reader->read_avail();
+      int64_t bytes_written = 0;
+      if (OB_FAIL(buf->remove_append(resp_reader, bytes_written))) {
+        LOG_ERROR("Error while remove_append to buf", "Attempted size", data_size,
+                  "wrote size", bytes_written, K(ret));
+      } else if (OB_UNLIKELY(bytes_written != data_size)) {
+        ret = OB_ERR_UNEXPECTED;
+        LOG_WARN("unexpected result", "Attempted size", data_size,
+                 "wrote size", bytes_written, K(ret));
+      } else {
+        LOG_DEBUG("succ to write to client", "Attempted size", bytes_written);
       }
     }
   }
@@ -1137,8 +1166,7 @@ int ObMysqlSM::handle_shard_request(bool &need_response_for_stmt, bool &need_wai
   ObDbConfigLogicDb *db_info = NULL;
 
   if (!session_info.is_sharding_user()
-      || parse_result.is_shard_special_cmd()
-      || ObProxyShardUtils::is_special_db(trans_state_)) {
+      || parse_result.is_shard_special_cmd()) {
     // do nothing
   } else {
     if (obmysql::OB_MYSQL_COM_FIELD_LIST == req_cmd) {
@@ -1146,10 +1174,12 @@ int ObMysqlSM::handle_shard_request(bool &need_response_for_stmt, bool &need_wai
       LOG_WARN("com_field_list cmd is unsupported for sharding table", K(ret));
     } else if (obmysql::OB_MYSQL_COM_QUERY != req_cmd) {
       //do nothing
-    } else if (parse_result.is_invalid_stmt() && parse_result.has_shard_comment()) {
-      ret = OB_ERR_PARSER_SYNTAX;
-      LOG_WARN("fail to parse shard sql with shard comment",
-               "sql", client_request.get_sql(), K(ret));
+    } else if (ObProxyShardUtils::is_special_db(parse_result)) {
+      if (OB_FAIL(ObProxyShardUtils::handle_information_schema_request(*client_session_,
+                                                                       trans_state_,
+                                                                       *client_buffer_reader_))) {
+        LOG_WARN("fail to handle information schema request", K(ret));
+      }
     } else {
       //  get logic db and check auth
       if (OB_FAIL(ObProxyShardUtils::get_logic_db_info(trans_state_,
@@ -1164,14 +1194,24 @@ int ObMysqlSM::handle_shard_request(bool &need_response_for_stmt, bool &need_wai
         LOG_WARN("fail to check shard request", K(ret));
       } else if (parse_result.is_dual_request()) {
         //do nothing
+      } else if (parse_result.is_ddl_stmt()) {
+        const ObString runtime_env = get_global_proxy_config().runtime_env.str();
+        if (0 == runtime_env.case_compare(OB_PROXY_DBP_RUNTIME_ENV)) {
+          if (OB_FAIL(ObProxyShardUtils::handle_ddl_request(this, *client_session_, trans_state_, *db_info, need_wait_callback))) {
+            LOG_WARN("fail to handle ddl request", K(ret));
+          }
+        } else {
+          ret = OB_NOT_SUPPORTED;
+          LOG_WARN("ddl stmt is unsupported for sharding table", K(ret));
+        }
       } else if (db_info->is_single_shard_db_table()) {
         // sindle db table
-        if (OB_FAIL(ObProxyShardUtils::handle_single_shard_request(this, *client_session_,
-                        trans_state_, *client_buffer_reader_, *db_info, need_wait_callback))) {
+        if (OB_FAIL(ObProxyShardUtils::handle_single_shard_request(*client_session_,
+                        trans_state_, *client_buffer_reader_, *db_info))) {
           LOG_WARN("fail to handle single shard request", K(ret));
         }
-      } else if (OB_FAIL(ObProxyShardUtils::handle_shard_request(this, *client_session_,
-                      trans_state_, *client_buffer_reader_, *db_info, need_wait_callback))) {
+      } else if (OB_FAIL(ObProxyShardUtils::handle_shard_request(*client_session_,
+                      trans_state_, *client_buffer_reader_, *db_info))) {
           LOG_WARN("fail to handle shard request", K(ret));
       }
     }
@@ -1726,14 +1766,18 @@ inline bool ObMysqlSM::check_connection_throttle()
 bool ObMysqlSM::can_pass_white_list()
 {
   bool can_pass = false;
-  ObStringKV string_kv;
-  ObClientSessionInfo &session_info = client_session_->get_session_info();
-  ObHSRResult &hsr = session_info.get_login_req().get_hsr_result();
-  ObUnixNetVConnection* unix_vc = static_cast<ObUnixNetVConnection *>(client_session_->get_netvc());
-  if (OB_UNLIKELY(NULL == unix_vc)) {
-    LOG_WARN("invalid unix_vc");
-  } else if (get_global_white_list_table_processor().can_ip_pass(hsr.cluster_name_, hsr.tenant_name_, hsr.user_name_, unix_vc->get_real_client_ip(), true)) {
+  if (RUN_MODE_CLIENT == g_run_mode) {
     can_pass = true;
+  } else {
+    ObStringKV string_kv;
+    ObClientSessionInfo &session_info = client_session_->get_session_info();
+    ObHSRResult &hsr = session_info.get_login_req().get_hsr_result();
+    ObUnixNetVConnection* unix_vc = static_cast<ObUnixNetVConnection *>(client_session_->get_netvc());
+    if (OB_UNLIKELY(NULL == unix_vc)) {
+        LOG_WARN("invalid unix_vc");
+    } else if (get_global_white_list_table_processor().can_ip_pass(hsr.cluster_name_, hsr.tenant_name_, hsr.user_name_, unix_vc->get_real_client_addr())) {
+        can_pass = true;
+    }
   }
 
   return can_pass;
@@ -1783,16 +1827,22 @@ int ObMysqlSM::analyze_capacity_flag_from_client()
   }
 
   // whether client truely support ob2.0 or not
-  if (!session_info.is_client_support_ob20_protocol()
-      || !is_client_send_client_mode) {
-    // reset ob2.0 cap
-    uint64_t client_cap = session_info.get_client_ob_capability();
-    client_cap &= ~(OB_CAP_OB_PROTOCOL_V2);
-    session_info.set_client_ob_capability(client_cap);
+  // whether proxy config flag set or not
+  if (OB_SUCC(ret)) {
+    uint64_t origin_client_cap = session_info.get_client_ob_capability();
+    if (!session_info.is_client_support_ob20_protocol()
+        || !is_client_send_client_mode
+        || !get_global_proxy_config().enable_ob_protocol_v2_with_client) {
+      origin_client_cap &= ~(OB_CAP_OB_PROTOCOL_V2);
+      session_info.set_client_ob_capability(origin_client_cap);
+    }
   }
 
-  uint64_t last_client_cap = session_info.get_client_ob_capability();
-  LOG_INFO("final client capability flag", K(last_client_cap));
+  if (OB_SUCC(ret)) {
+    const uint64_t last_client_cap = session_info.get_client_ob_capability();
+    const bool is_client_support_ob20 = session_info.is_client_support_ob20_protocol();
+    LOG_INFO("final client capability flag in negotiation", K(last_client_cap), K(is_client_support_ob20));
+  }
   
   return ret;
 }
@@ -2002,7 +2052,12 @@ void ObMysqlSM::analyze_mysql_request(ObMysqlAnalyzeStatus &status, const bool i
       // 3. if BEGIN or START TRANSACTION, try to hold it
       if (OB_LIKELY(OB_MYSQL_COM_QUERY == req_cmd)) {
         MYSQL_INCREMENT_DYN_STAT(TOTAL_QUERY_COUNT);
-        if (OB_UNLIKELY(client_request.get_parse_result().need_hold_start_trans())) {
+        // Not set start trans sql
+        // 1. already in transaction
+        // 2. already hold xa start
+        if (OB_UNLIKELY(client_request.get_parse_result().need_hold_start_trans()
+                        && trans_state_.is_trans_first_request_
+                        && !trans_state_.is_hold_xa_start_)) {
           if (OB_FAIL(session_info.set_start_trans_sql(client_request.get_sql()))) {
             LOG_WARN("fail to set start transaction sqld", K_(sm_id), K(ret));
           }
@@ -2027,7 +2082,7 @@ void ObMysqlSM::analyze_mysql_request(ObMysqlAnalyzeStatus &status, const bool i
         if (OB_FAIL(analyze_login_request(ctx, status))) {
           LOG_WARN("fail to analyze login request", K(ret));
         }
-      } else if (OB_MYSQL_COM_CHANGE_USER == req_cmd || OB_MYSQL_COM_RESET_CONNECTION == req_cmd) {
+      } else if (OB_MYSQL_COM_RESET_CONNECTION == req_cmd) {
         if (session_info.is_sharding_user() || session_info.is_session_pool_client_) {
           if (OB_FAIL(encode_error_message(OB_NOT_SUPPORTED))) {
             LOG_WARN("fail to encode unsupport change user error message", K(ret));
@@ -2067,6 +2122,31 @@ void ObMysqlSM::analyze_mysql_request(ObMysqlAnalyzeStatus &status, const bool i
       } else if (OB_MYSQL_COM_STMT_PREPARE_EXECUTE == req_cmd) {
         if (OB_FAIL(analyze_ps_prepare_execute_request())) {
           LOG_WARN("fail to analyze ps prepare execute request", K(ret));
+        // Not set start trans sql
+        // 1. already in transaction
+        // 2. already hold xa start
+        // 3. already hold begin
+        } else if (get_global_proxy_config().enable_xa_route 
+                   && client_request.get_parse_result().need_hold_xa_start() 
+                   && trans_state_.is_trans_first_request_
+                   && !trans_state_.is_hold_start_trans_
+                   && !trans_state_.is_hold_xa_start_) {
+          LOG_DEBUG("[ObMysqlSM::analyze_mysql_request] save xa start request packet");
+          session_info.set_start_trans_sql(client_request.get_req_pkt());
+          // save the xa start ps id, session_info.ps_id_ will be reset at ObMysqlSM::setup_cmd_complete()
+          session_info.set_xa_start_ps_id(session_info.get_client_ps_id());
+        }   
+      } else if (OB_MYSQL_COM_CHANGE_USER == req_cmd) {
+        if (OB_UNLIKELY(session_info.is_sharding_user() || client_session_->using_ldg())) {
+          if (OB_FAIL(encode_error_message(OB_NOT_SUPPORTED))) {
+            LOG_WARN("fail to encode unsupport change user error message", K(ret));
+          } else {
+            LOG_WARN("sharding or ldg not support change user", K(session_info.is_sharding_user()),
+                KPC_(client_session), K(ret));
+          }
+          status = ANALYZE_ERROR;
+        } else if (OB_FAIL(analyze_change_user_request())) {
+          LOG_WARN("fail to analyze change user request", K(ret));
         }
       } else {
         // do nothing
@@ -2106,6 +2186,129 @@ void ObMysqlSM::analyze_mysql_request(ObMysqlAnalyzeStatus &status, const bool i
     milestone_diff(milestones_.client_.analyze_request_begin_, milestones_.client_.analyze_request_end_);
 }
 
+int ObMysqlSM::analyze_change_user_request()
+{
+  int ret = OB_SUCCESS;
+  ObClientSessionInfo& client_info = client_session_->get_session_info();
+  // len represents the size of the entire OB_MYSQL_COM_CHANGE_USER message
+  int64_t len = trans_state_.trans_info_.client_request_.get_packet_meta().pkt_len_;
+  if (OB_UNLIKELY(len <= 0)) {
+    ret = OB_INVALID_ARGUMENT;
+    LOG_WARN("invalid len", K(len), K(ret));
+  } else {
+    ObVariableLenBuffer<128> user_buffer;
+    if (OB_FAIL(user_buffer.init(len))) {
+      LOG_WARN("fail to init user buffer", K(ret));
+    } else {
+      char *start = const_cast<char *>(user_buffer.ptr());
+      char *written_pos = client_buffer_reader_->copy(start, len, 0);
+      if (OB_UNLIKELY(written_pos != start + len)) {
+        ret = OB_ERR_UNEXPECTED;
+        LOG_WARN("write pos not expected", K(written_pos), K(start), K(len), K(ret));
+      } else if (OB_FAIL(client_buffer_reader_->consume_all())) {
+        LOG_WARN("client_buffer_reader consume_all failed", K(ret));
+      } else {
+        ObMIOBuffer *write_buffer = client_buffer_reader_->writer();
+        // buf points to the username part of OB_MYSQL_COM_CHANGE_USER
+        char *buf = start + MYSQL_NET_META_LENGTH;
+        ObString username = ObString::make_string(buf);
+        int64_t name_len = strlen(buf);
+        ObHSRResult result;
+        int64_t written_len = 0;
+        ObString& tenant_name = client_info.get_login_req().get_hsr_result().tenant_name_;
+        ObString& cluster_name = client_info.get_login_req().get_hsr_result().cluster_name_;
+        if (OB_FAIL(ObProxyAuthParser::parse_full_user_name(username, tenant_name, cluster_name, result))) {
+          LOG_WARN("parse full user name failed", K(ret));
+        } else if (OB_FAIL(write_buffer->write(start, MYSQL_NET_META_LENGTH, written_len))) {
+          LOG_WARN("fail to write header", K(ret));
+        } else if (OB_UNLIKELY(MYSQL_NET_META_LENGTH != written_len)) {
+          ret = OB_ERR_UNEXPECTED;
+          LOG_WARN("not write completely", K(written_len), K(ret));
+        } 
+        // write username
+        if (OB_SUCC(ret)) {
+          if (OB_FAIL(write_buffer->write(result.user_name_.ptr(), result.user_name_.length(), written_len))) {
+            LOG_WARN("fail to write username", K(ret));
+          } else if (OB_UNLIKELY(result.user_name_.length() != written_len)) {
+            ret = OB_ERR_UNEXPECTED;
+            LOG_WARN("not write completely", K(written_len), K(ret));
+          }
+        }
+        // write tenant name
+        int64_t new_name_len = 0;
+        if (OB_SUCC(ret)) {
+          if (result.has_tenant_username_ && result.has_cluster_username_) {
+            if (OB_UNLIKELY(tenant_name != result.tenant_name_ || cluster_name != result.cluster_name_)) {
+              ret = OB_ERR_UNEXPECTED;
+              LOG_WARN("name not match", K(result), K(tenant_name), K(cluster_name), K(ret));
+            }
+          } else if (result.has_tenant_username_ && !result.has_cluster_username_) {
+            if (OB_UNLIKELY(tenant_name != result.tenant_name_)) {
+              ret = OB_ERR_UNEXPECTED;
+              LOG_WARN("name not match", K(result), K(tenant_name), K(ret));
+            }
+          } else if (!result.has_tenant_username_ && !result.has_cluster_username_) {
+            // do nothing
+          } else {
+            ret = OB_ERR_UNEXPECTED;
+            LOG_WARN("should not come here", K(result), K(ret));
+          }
+          if (OB_SUCC(ret)) {
+            if (OB_FAIL(write_buffer->write("@", 1, written_len))) {
+              LOG_WARN("fail to write @", K(ret));
+            } else if (1 != written_len) {
+              ret = OB_ERR_UNEXPECTED;
+              LOG_WARN("not write completely", K(written_len), K(ret));
+            } else if (OB_FAIL(write_buffer->write(tenant_name.ptr(), tenant_name.length(), written_len))) {
+              LOG_WARN("fail to write tenant_name", K(ret));
+            } else if (tenant_name.length() != written_len) {
+              ret = OB_ERR_UNEXPECTED;
+              LOG_WARN("not write completely", K(written_len), K(ret));
+            } else {
+              new_name_len = tenant_name.length() + result.user_name_.length() + 1;
+            }
+          }
+          LOG_DEBUG("change user name", K(result), K(tenant_name));
+        }
+        // Write the rest of the message
+        if (OB_SUCC(ret)) {
+          if (OB_FAIL(write_buffer->write("\0", 1, written_len))) {
+            LOG_WARN("fail to write string null", K(ret));
+          } else if (1 != written_len) {
+            ret = OB_ERR_UNEXPECTED;
+            LOG_WARN("not write completely", K(written_len), K(ret));
+          } else if (OB_FAIL(write_buffer->write(buf + name_len + 1, len - MYSQL_NET_META_LENGTH - name_len - 1, written_len))) {
+            LOG_WARN("fail to write left buffer", K(ret));
+          } else if (written_len != len - MYSQL_NET_META_LENGTH - name_len - 1) {
+            ret = OB_ERR_UNEXPECTED;
+            LOG_WARN("not write completely", K(written_len), K(ret));
+          } else if (get_client_session_protocol() == ObProxyProtocol::PROTOCOL_OB20) {
+            char crc_buf[4];
+            memset(crc_buf, 0, sizeof(crc_buf));
+            if (OB_FAIL(write_buffer->write(crc_buf, 4, written_len))) {
+              LOG_WARN("fail to write crc_buf", K(ret));
+            } else if (4 != written_len) {
+              ret = OB_ERR_UNEXPECTED;
+              LOG_WARN("not write completely", K(written_len), K(ret));
+            }
+          }
+        }
+        // Re-modify the message length
+        if (OB_SUCC(ret)) {
+          uint32_t new_len = static_cast<uint32_t>(len - MYSQL_NET_HEADER_LENGTH + new_name_len - name_len);
+          client_buffer_reader_->replace(reinterpret_cast<const char*>(&new_len), 3, 0);
+          ObProxyMysqlRequest &client_request = trans_state_.trans_info_.client_request_;
+          client_request.get_packet_meta().pkt_len_ =  new_len + MYSQL_NET_HEADER_LENGTH;
+          if (OB_FAIL(client_request.add_request(client_buffer_reader_, trans_state_.mysql_config_params_->request_buffer_length_))) {
+            LOG_WARN("fail to add com request", K(ret));
+          }
+        }
+      }
+    }
+  }
+  return ret;
+}
+
 int ObMysqlSM::analyze_login_request(ObRequestAnalyzeCtx &ctx, ObMysqlAnalyzeStatus &status)
 {
   int ret = OB_SUCCESS;
@@ -2116,7 +2319,7 @@ int ObMysqlSM::analyze_login_request(ObRequestAnalyzeCtx &ctx, ObMysqlAnalyzeSta
   ObUnixNetVConnection* unix_vc = static_cast<ObUnixNetVConnection *>(client_session_->get_netvc());
   if (NULL == unix_vc) {
     ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("client unix vc is null", K(ret));
+    LOG_WARN("client entry vc is null", K(ret));
   } else if (!client_session_->is_proxy_mysql_client_ && hsr.response_.is_ssl_request() && !unix_vc->ssl_connected()) {
     if (OB_FAIL(unix_vc->ssl_init(ObUnixNetVConnection::SSL_SERVER,
                                   client_session_->get_vip_cluster_name(),
@@ -2204,11 +2407,7 @@ int ObMysqlSM::analyze_login_request(ObRequestAnalyzeCtx &ctx, ObMysqlAnalyzeSta
 
     if (!client_session_->is_proxy_mysql_client_) {
       net::ObIpEndpoint client_addr;
-      if (client_session_->is_need_convert_vip_to_tname()) {
-        net::ops_ip_copy(client_addr, client_session_->get_netvc()->get_real_client_addr());
-      } else {
-        net::ops_ip_copy(client_addr, client_session_->get_netvc()->get_remote_addr());
-      }
+      net::ops_ip_copy(client_addr, ops_ip_sa_cast(client_session_->get_real_client_addr().get_sockaddr()));
       LOG_INFO("client login audit", K(client_addr), K(hsr.cluster_name_), K(hsr.tenant_name_), K(hsr.user_name_),
                 "status", ret == OB_SUCCESS && status != ANALYZE_ERROR ? "success" : "failed");
     }
@@ -2227,24 +2426,19 @@ int ObMysqlSM::do_analyze_ps_prepare_request(const ObString &ps_sql)
   ObProxyMysqlRequest &client_request = trans_state_.trans_info_.client_request_;
 
   ObPsEntry *ps_entry = NULL;
+  ObGlobalPsEntry *global_ps_entry = NULL;
   ObPsIdEntry *ps_id_entry = NULL;
-  bool is_new_ps_entry = false;
-
-  ObBasePsEntryCache &ps_entry_cache = self_ethread().get_ps_entry_cache();
-  ps_entry_cache.get_ps_entry(ps_sql, ps_entry);
-
-  if (NULL == ps_entry) {
-    if (OB_FAIL(ObPsEntry::alloc_and_init_ps_entry(ps_sql, client_request.get_parse_result(), ps_entry))) {
-      LOG_WARN("fail to alloc and init ps entry", K(ret));
-    } else if (OB_FAIL(ps_entry_cache.set_ps_entry(ps_entry))) {
-      LOG_WARN("fail to add ps entry to cache", K(ret));
-      if (OB_LIKELY(NULL != ps_entry)) {
-        ps_entry->destroy();
-        ps_entry = NULL;
-      }
+  if (get_global_proxy_config().enable_global_ps_cache) {
+    ObBasePsEntryGlobalCache& ps_entry_global_cache = get_global_ps_entry_cache();
+    if (OB_FAIL(ps_entry_global_cache.acquire_or_create_ps_entry(ps_sql, client_request.get_parse_result(), global_ps_entry))) {
+      LOG_WARN("create ps entry failed", K(ps_sql), K(ret));
     } else {
-      ps_entry->inc_ref();
-      is_new_ps_entry = true;
+      ps_entry = global_ps_entry;
+    }
+  } else {
+    ObBasePsEntryThreadCache &ps_entry_thread_cache = self_ethread().get_ps_entry_cache();
+    if (OB_FAIL(ps_entry_thread_cache.acquire_or_create_ps_entry(ps_sql, client_request.get_parse_result(), ps_entry))) {
+      LOG_WARN("create ps entry failed", K(ps_sql), K(ret));
     }
   }
 
@@ -2254,21 +2448,20 @@ int ObMysqlSM::do_analyze_ps_prepare_request(const ObString &ps_sql)
       LOG_WARN("fail to alloc ps id entry", K(ret));
     } else if (OB_FAIL(session_info.add_ps_id_entry(ps_id_entry))) {
       LOG_WARN("fail to add ps id entry", KPC(ps_entry), K(ret));
-      if (OB_LIKELY(NULL != ps_id_entry)) {
-        ps_id_entry->destroy();
-        ps_id_entry = NULL;
-      }
     } else {
       // set current ps info
       session_info.set_ps_entry(ps_id_entry->ps_entry_);
       session_info.set_client_ps_id(ps_id_entry->ps_id_);
       session_info.set_ps_id_entry(ps_id_entry);
     }
-  }
-
-  if (is_new_ps_entry) {
-    ps_entry->dec_ref();
-    ps_entry = NULL;
+    if (OB_FAIL(ret)) {
+      if (OB_LIKELY(NULL != ps_id_entry)) {
+        ps_id_entry->destroy();
+        ps_id_entry = NULL;
+      } else if (OB_LIKELY(NULL == ps_id_entry && NULL != ps_entry)) {
+        ps_entry->dec_ref();
+      }
+    }
   }
   return ret;
 }
@@ -2567,7 +2760,7 @@ int ObMysqlSM::analyze_text_ps_prepare_request(const ObRequestAnalyzeCtx &ctx)
 }
 
 int ObMysqlSM::do_parse_text_ps_prepare_sql(char*& text_ps_prepare_buf,
-    int64_t& text_ps_prepare_buf_len, 
+    int64_t& text_ps_prepare_buf_len,
     ObString& text_ps_sql, const ObRequestAnalyzeCtx& ctx)
 {
   int ret = OB_SUCCESS;
@@ -2579,8 +2772,8 @@ int ObMysqlSM::do_parse_text_ps_prepare_sql(char*& text_ps_prepare_buf,
   // This prepare statement needs to be parsed once
   ObProxyTextPsInfo prepare_info = client_request.get_parse_result().text_ps_info_;
   if (1 == prepare_info.param_count_) {
-    ObProxyTextPsParam &param = prepare_info.params_.at(0);
-    ObString user_name = param.str_value_.string_;
+    ObProxyTextPsParam* param = prepare_info.params_.at(0);
+    ObString user_name = param->str_value_.config_string_;
     ObObj user_value;
     if (OB_FAIL(cs_info.get_user_variable_value(user_name, user_value))) {
       LOG_WARN("get user variable failed", K(ret), K(user_name));
@@ -2635,7 +2828,7 @@ int ObMysqlSM::do_analyze_text_ps_prepare_request(const ObString& text_ps_sql)
   ObProxyMysqlRequest &client_request = trans_state_.trans_info_.client_request_;
 
   ObTextPsEntry *text_ps_entry = NULL;
-  bool is_new_text_ps_entry = false;
+  ObGlobalTextPsEntry *global_text_ps_entry = NULL;
   ObString text_ps_name = client_request.get_parse_result().get_text_ps_name();
   ObTextPsNameEntry *text_ps_name_entry = session_info.get_text_ps_name_entry(text_ps_name);
   LOG_DEBUG("prepare text ps name", K(client_request.get_parse_result().get_text_ps_name()));
@@ -2661,21 +2854,17 @@ int ObMysqlSM::do_analyze_text_ps_prepare_request(const ObString& text_ps_sql)
     }
   }
 
-  ObBasePsEntryCache& text_ps_entry_cache = self_ethread().get_text_ps_entry_cache();
-  text_ps_entry_cache.get_text_ps_entry(text_ps_sql, text_ps_entry);
-  if (OB_SUCC(ret) && NULL == text_ps_entry) {
-    if (OB_FAIL(ObTextPsEntry::alloc_and_init_text_ps_entry(
-      text_ps_sql, client_request.get_parse_result(), text_ps_entry))) {
-      LOG_WARN("fail to alloc and init text ps entry", K(ret));
-    } else if (OB_FAIL(text_ps_entry_cache.set_text_ps_entry(text_ps_entry))) {
-      LOG_WARN("fail to add text ps entry to cache", K(ret));
-      if (OB_LIKELY(NULL != text_ps_entry)) {
-        text_ps_entry->destroy();
-        text_ps_entry = NULL;
-      }
+  if (get_global_proxy_config().enable_global_ps_cache) {
+    ObBasePsEntryGlobalCache& text_ps_entry_global_cache = get_global_text_ps_entry_cache();
+    if (OB_FAIL(text_ps_entry_global_cache.acquire_or_create_ps_entry(text_ps_sql, client_request.get_parse_result(), global_text_ps_entry))) {
+      LOG_WARN("create text ps entry failed", K(text_ps_sql), K(ret));
     } else {
-      text_ps_entry->inc_ref();
-      is_new_text_ps_entry = true;
+      text_ps_entry = global_text_ps_entry;
+    }
+  } else {
+    ObBasePsEntryThreadCache &text_ps_entry_thread_cache = self_ethread().get_text_ps_entry_cache();
+    if (OB_FAIL(text_ps_entry_thread_cache.acquire_or_create_ps_entry(text_ps_sql, client_request.get_parse_result(), text_ps_entry))) {
+      LOG_WARN("create text ps entry failed", K(text_ps_sql), K(ret));
     }
   }
 
@@ -2685,25 +2874,21 @@ int ObMysqlSM::do_analyze_text_ps_prepare_request(const ObString& text_ps_sql)
       LOG_WARN("fail to alloc text ps name entry", K(ret));
     } else if (OB_FAIL(session_info.add_text_ps_name_entry(text_ps_name_entry))) {
       LOG_WARN("fail to add text ps name entry", KPC(text_ps_name_entry), K(ret));
+    } else {
+      text_ps_name_entry->version_ = client_session_->inc_and_get_ps_id();
+      session_info.set_client_ps_id(text_ps_name_entry->version_);
+      session_info.set_text_ps_name_entry(text_ps_name_entry);
+      LOG_DEBUG("session info add text ps name", K(client_request.get_parse_result().get_text_ps_name()));
+    }
+    if (OB_FAIL(ret)) {
       if (OB_LIKELY(NULL != text_ps_name_entry)) {
         text_ps_name_entry->destroy();
         text_ps_name_entry = NULL;
+      } else if (OB_LIKELY(NULL == text_ps_name_entry && NULL != text_ps_entry)) {
+        text_ps_entry->destroy();
       }
-    } else {
-      text_ps_name_entry->version_ = client_session_->inc_and_get_ps_id();
     }
   }
-
-  if (OB_SUCC(ret)) {
-    session_info.set_client_ps_id(text_ps_name_entry->version_);
-    session_info.set_text_ps_name_entry(text_ps_name_entry);
-    LOG_DEBUG("session info add text ps name", K(client_request.get_parse_result().get_text_ps_name()));
-  }
-
-  if (is_new_text_ps_entry) {
-    text_ps_entry->dec_ref();
-    text_ps_entry = NULL;
-  }
   return ret;
 }
 
@@ -2854,6 +3039,7 @@ int ObMysqlSM::state_watch_for_client_abort(int event, void *data)
       case VC_EVENT_ERROR:
       case VC_EVENT_ACTIVE_TIMEOUT:
       case VC_EVENT_INACTIVITY_TIMEOUT:
+      case VC_EVENT_DETECT_SERVER_DEAD:
         if (tunnel_.is_tunnel_active()) {
           // Check to see if the client is part of the tunnel.
           // If so forward the event to the tunnel. Otherwise,
@@ -2883,6 +3069,16 @@ int ObMysqlSM::state_watch_for_client_abort(int event, void *data)
         milestones_.client_.client_end_ = get_based_hrtime();
         set_client_abort(ObMysqlTransact::ABORTED, event);
         update_congestion_entry(event);
+        if (OB_MYSQL_COM_QUIT != trans_state_.trans_info_.client_request_.get_packet_meta().cmd_) {
+          if (NULL != trans_state_.congestion_entry_) {
+            trans_state_.congestion_entry_->set_client_feedback_failed_at(event::get_hrtime());
+            if (trans_state_.congestion_entry_->client_feedback_congested_) {
+              if (NULL != sm_cluster_resource_) {
+                sm_cluster_resource_->alive_addr_set_.set_refactored(trans_state_.congestion_entry_->server_ip_);
+              }
+            }
+          }
+        }
         terminate_sm_ = true;
         break;
 
@@ -3143,7 +3339,6 @@ int ObMysqlSM::state_observer_open(int event, void *data)
                 trans_state_.current_.send_action_ = ObMysqlTransact::SERVER_SEND_HANDSHAKE;
               }
               LOG_DEBUG("succ to establish server sesssion", K_(sm_id));
-
               handle_observer_open();
             }
           }
@@ -3228,6 +3423,7 @@ int ObMysqlSM::state_server_response_read(int event, void *data)
       // fall through
       case VC_EVENT_ERROR:
       case VC_EVENT_ACTIVE_TIMEOUT:
+      case VC_EVENT_DETECT_SERVER_DEAD:
         LOG_WARN("ObMysqlSM::state_server_response_read", "event",
                  ObMysqlDebugNames::get_event_name(event), K_(sm_id));
         // Error handling function
@@ -3279,8 +3475,7 @@ int ObMysqlSM::state_server_response_read(int event, void *data)
     }
 
     bool need_receive_completed = false;
-    if (OB_UNLIKELY((NULL != client_session_ && client_session_->is_proxy_mysql_client_)
-        || ObMysqlTransact::SERVER_SEND_REQUEST != trans_state_.current_.send_action_)) {
+    if (ObMysqlTransact::SERVER_SEND_REQUEST != trans_state_.current_.send_action_) {
       need_receive_completed = true;
     }
 
@@ -3441,7 +3636,8 @@ ObProxyProtocol ObMysqlSM::get_server_session_protocol() const
   if (NULL == server_session_ || (!server_session_->is_checksum_supported() && !server_session_->is_ob_protocol_v2_supported())
           || ObMysqlTransact::SERVER_SEND_SAVED_LOGIN == trans_state_.current_.send_action_
           || ObMysqlTransact::SERVER_SEND_LOGIN == trans_state_.current_.send_action_
-          || ObMysqlTransact::SERVER_SEND_HANDSHAKE == trans_state_.current_.send_action_) {
+          || ObMysqlTransact::SERVER_SEND_HANDSHAKE == trans_state_.current_.send_action_
+          || ObMysqlTransact::is_binlog_request(trans_state_)) {
     return ObProxyProtocol::PROTOCOL_NORMAL;
   } else if (server_session_->is_ob_protocol_v2_supported()) {
     return ObProxyProtocol::PROTOCOL_OB20;
@@ -3613,7 +3809,9 @@ inline int ObMysqlSM::handle_first_compress_response_packet(ObMysqlAnalyzeStatus
 
   if (server_buffer_reader_->is_read_avail_more_than(MYSQL_COMPRESSED_HEALDER_LENGTH)) {
     ObMysqlCompressAnalyzer::AnalyzeMode mode;
-    if (!need_receive_completed || ObMysqlTransact::SERVER_SEND_REQUEST != trans_state_.current_.send_action_) {
+    if (ObMysqlTransact::SERVER_SEND_XA_START == trans_state_.current_.send_action_) {
+      mode = ObMysqlCompressAnalyzer::DECOMPRESS_MODE;
+    } else if (!need_receive_completed || ObMysqlTransact::SERVER_SEND_REQUEST != trans_state_.current_.send_action_) {
       mode = ObMysqlCompressAnalyzer::SIMPLE_MODE;
     } else {
       mode = ObMysqlCompressAnalyzer::DECOMPRESS_MODE;
@@ -3838,6 +4036,7 @@ inline int ObMysqlSM::handle_first_normal_response_packet(ObMysqlAnalyzeStatus &
   bool is_autocommit_0 = false;
   if (OB_FAIL(client_session_->get_session_info().field_mgr_.get_common_sys_variable_value("autocommit", obj))) {
     LOG_DEBUG("fail to get autocommit val", K(ret));
+    ret = OB_SUCCESS;
   } else if (obj.get_int() == 0) {
     LOG_DEBUG("autocommit is 0");
     is_autocommit_0 = true;
@@ -3845,7 +4044,8 @@ inline int ObMysqlSM::handle_first_normal_response_packet(ObMysqlAnalyzeStatus &
 
   if (OB_LIKELY(server_buffer_reader_->is_read_avail_more_than(MYSQL_NET_META_LENGTH))) {
     if (OB_UNLIKELY(!client_session_->get_session_info().is_oceanbase_server()
-        || trans_state_.mysql_config_params_->is_mysql_routing_mode())) {
+        || trans_state_.mysql_config_params_->is_mysql_routing_mode()
+        || ObMysqlTransact::is_binlog_request(trans_state_))) {
       LOG_DEBUG("handle_first_normal_response_packet", K(trans_state_.current_.state_),
                 K(is_in_trans_), K(is_autocommit_0));
       analyzer_.set_server_cmd(trans_state_.trans_info_.sql_cmd_, STANDARD_MYSQL_PROTOCOL_MODE,
@@ -4016,18 +4216,11 @@ void ObMysqlSM::analyze_status_after_analyze_mysql_in_ob20_payload(ObMysqlAnalyz
                                                                    ObClientSessionInfo &client_session_info)
 {
   int64_t mysql_packet_len = trans_state_.trans_info_.client_request_.get_packet_len();
+  int ret = OB_SUCCESS;
   if (OB_LIKELY(status == ANALYZE_DONE)) {
-    int ret = OB_SUCCESS;
     if (OB_UNLIKELY(mysql_packet_len == MYSQL_PACKET_MAX_LENGTH)) {
       status = ANALYZE_NOT_SUPPORT;
       LOG_WARN("do not support full mysql packet in ob2.0 payload now", K(status));
-    } else if (OB_FAIL(analyze_ob20_remain_after_analyze_mysql_request_done(client_session_info))) {
-      if (ret == OB_NOT_SUPPORTED) {
-        status = ANALYZE_NOT_SUPPORT;
-      } else {
-        status = ANALYZE_ERROR;
-        LOG_WARN("fail to analyze ob20 remain after mysql req done", K(ret), K(status));
-      }
     }
   } else if (OB_UNLIKELY(status == ANALYZE_CONT)) {
     status = ANALYZE_NOT_SUPPORT;
@@ -4037,6 +4230,17 @@ void ObMysqlSM::analyze_status_after_analyze_mysql_in_ob20_payload(ObMysqlAnalyz
   } else {
     LOG_WARN("unexpected status after analyze mysql in ob20 payload", K(status));
   }  
+
+  if (OB_FAIL(analyze_ob20_remain_after_analyze_mysql_request_done(client_session_info))) {
+    if (OB_LIKELY(status == ANALYZE_DONE)) {
+      if (ret == OB_NOT_SUPPORTED) {
+        status = ANALYZE_NOT_SUPPORT;
+      } else {
+        status = ANALYZE_ERROR;
+        LOG_WARN("fail to analyze ob20 remain after mysql req done", K(ret), K(status));
+      }
+    }
+  }
 }
 
 int ObMysqlSM::analyze_ob20_remain_after_analyze_mysql_request_done(ObClientSessionInfo &client_session_info)
@@ -4047,6 +4251,7 @@ int ObMysqlSM::analyze_ob20_remain_after_analyze_mysql_request_done(ObClientSess
   int64_t remain_payload_len = client_session_info.ob20_request_.remain_payload_len_;
   if (remain_payload_len < mysql_packet_len) {
     ret = OB_NOT_SUPPORTED;
+    client_session_info.ob20_request_.remain_payload_len_ = 0;
     LOG_WARN("unexpected situation after received total compress packet and total mysql packet",
              K(ret), K(remain_payload_len), K(mysql_packet_len));
   } else {
@@ -4340,6 +4545,7 @@ int ObMysqlSM::state_server_request_send(int event, void *data)
       case VC_EVENT_ERROR:
       case VC_EVENT_ACTIVE_TIMEOUT:
       case VC_EVENT_INACTIVITY_TIMEOUT:
+      case VC_EVENT_DETECT_SERVER_DEAD:
         LOG_WARN("ObMysqlSM::state_server_request_send", "event",
                  ObMysqlDebugNames::get_event_name(event), K_(sm_id));
         // if something unusual happened in sending request, also need to get request write time
@@ -4885,9 +5091,10 @@ int ObMysqlSM::tunnel_handler_response_transfered(int event, void *data)
     ret = OB_INNER_STAT_ERROR;
     LOG_WARN("client_entry or server entry is null, disconnect", K_(client_entry), K(ret));
   } else {
-    // only the first request in one transaction will need to update pl,
+    // only the first request in one transaction or internal routing transaction will need to update pl,
     // begin(start transaction), or set autocommit = 0 is not the first request;
-    if (trans_state_.is_trans_first_request_) {
+    if ((trans_state_.is_trans_first_request_ || client_session_->is_trans_internal_routing())
+        && !ObMysqlTransact::is_binlog_request(trans_state_)) {
       ObMysqlTransact::handle_pl_update(trans_state_);
     }
 
@@ -4967,6 +5174,7 @@ int ObMysqlSM::tunnel_handler_server(int event, ObMysqlTunnelProducer &p)
     switch (event) {
       case VC_EVENT_INACTIVITY_TIMEOUT:
       case VC_EVENT_ACTIVE_TIMEOUT:
+      case VC_EVENT_DETECT_SERVER_DEAD:
       case VC_EVENT_ERROR:
         // fall through
       case VC_EVENT_EOS:
@@ -4978,6 +5186,7 @@ int ObMysqlSM::tunnel_handler_server(int event, ObMysqlTunnelProducer &p)
             trans_state_.current_.state_ = ObMysqlTransact::ACTIVE_TIMEOUT;
             break;
           case VC_EVENT_ERROR:
+          case VC_EVENT_DETECT_SERVER_DEAD:
             trans_state_.current_.state_ = ObMysqlTransact::CONNECTION_ERROR;
             break;
           case VC_EVENT_EOS:
@@ -5165,7 +5374,8 @@ void ObMysqlSM::print_mysql_complete_log(ObMysqlTunnelProducer *p)
     bool print_warn_log = false;
     bool print_info_log = false;
     if (OB_LIKELY(NULL != client_session_)) {
-      if (OB_UNLIKELY(result.is_error_resp() && client_session_->is_proxy_mysql_client_)) {
+      if (OB_UNLIKELY(result.is_error_resp() && client_session_->is_proxy_mysql_client_
+          && client_session_->get_session_info().get_priv_info().user_name_ != ObProxyTableInfo::DETECT_USERNAME_USER)) {
         if (result.is_not_supported_error()) {
           print_info_log = true;
         } else {
@@ -5269,8 +5479,7 @@ void ObMysqlSM::update_safe_read_snapshot()
   ObSafeSnapshotEntry *entry = NULL;
   bool is_need_force_sync = true;
   ObAddr last_addr;
-  last_addr.set_ipv4_addr(trans_state_.server_info_.addr_.get_ip4_host_order(),
-                          static_cast<int32_t>(trans_state_.server_info_.addr_.get_port_host_order()));
+  last_addr.set_sockaddr(trans_state_.server_info_.addr_.sa_);
 
   if (result.is_partition_hit()) {
     entry = sm_cluster_resource_->safe_snapshot_mgr_.get(last_addr);
@@ -5384,7 +5593,7 @@ int ObMysqlSM::trim_ok_packet(ObIOBufferReader &reader)
     if (OK_PACKET_ACTION_CONSUME == analyze_result.get_ok_packet_action_type()) {
       if (OB_FAIL(ObProxySessionInfoHandler::analyze_extra_ok_packet(
           reader, client_session->get_session_info(),
-          server_session->get_session_info(), need_handle_sysvar, analyze_result))) {
+          server_session->get_session_info(), need_handle_sysvar, analyze_result, trans_state_.trace_log_))) {
         LOG_WARN("fail to analyze extra ok packet",  K_(sm_id), K(ret));
       }
     } else if (OK_PACKET_ACTION_REWRITE == analyze_result.get_ok_packet_action_type()) {
@@ -5399,6 +5608,7 @@ int ObMysqlSM::trim_ok_packet(ObIOBufferReader &reader)
                                                                trans_state_.is_auth_request_,
                                                                need_handle_sysvar,
                                                                analyze_result,
+                                                               trans_state_.trace_log_,
                                                                is_save_to_common_sys))) {
         LOG_WARN("fail to analyze rewrite ok packet",  K_(sm_id), K(ret));
       }
@@ -5417,10 +5627,14 @@ int ObMysqlSM::trim_ok_packet(ObIOBufferReader &reader)
 
     // handle other variables
     if (OB_SUCC(ret)) {
+      bool is_only_sync_trans_sess = trans_state_.trans_info_.server_response_.get_analyze_result().is_error_resp();
       if (OB_FAIL(handle_saved_session_variables())) {
         LOG_WARN("fail to handle saved session varialbes", K(ret));
-      } else if (OB_FAIL(ObProxySessionInfoHandler::save_changed_sess_info(
-        client_session->get_session_info(), server_session->get_session_info(), analyze_result.get_extra_info()))) {
+      } else if (OB_FAIL(ObProxySessionInfoHandler::save_changed_sess_info(client_session->get_session_info(),
+                                                                           server_session->get_session_info(),
+                                                                           analyze_result.get_extra_info(),
+                                                                           trans_state_.trace_log_,
+                                                                           is_only_sync_trans_sess))) {
         LOG_WARN("fail to save changed session info", K(ret));
       }
     }
@@ -5459,8 +5673,17 @@ int ObMysqlSM::tunnel_handler_client(int event, ObMysqlTunnelConsumer &c)
       case VC_EVENT_INACTIVITY_TIMEOUT:
       case VC_EVENT_ACTIVE_TIMEOUT:
       case VC_EVENT_ERROR:
-        LOG_WARN("ObMysqlSM::tunnel_handler_client", "event",
-                 ObMysqlDebugNames::get_event_name(event), K_(sm_id));
+      case VC_EVENT_DETECT_SERVER_DEAD: {
+        // Probe user does not print disconnection log
+        bool is_detect_user = false;
+        if (NULL != client_session_ && client_session_->get_session_info().get_priv_info().user_name_ == ObProxyTableInfo::DETECT_USERNAME_USER) {
+          is_detect_user = true;
+        }
+
+        if (!is_detect_user) {
+          LOG_WARN("ObMysqlSM::tunnel_handler_client", "event",
+              ObMysqlDebugNames::get_event_name(event), K_(sm_id));
+        }
         // The client died or aborted. Check to see
         // if we should setup a background fill
         set_client_abort(ObMysqlTransact::ABORTED, event);
@@ -5482,7 +5705,7 @@ int ObMysqlSM::tunnel_handler_client(int event, ObMysqlTunnelConsumer &c)
         // session and client session
         close_connection = true;
         break;
-
+      }
       case VC_EVENT_WRITE_COMPLETE: {
         c.write_success_ = true;
         trans_state_.client_info_.abort_ = ObMysqlTransact::DIDNOT_ABORT;
@@ -5557,6 +5780,7 @@ int ObMysqlSM::tunnel_handler_request_transfer_client(int event, ObMysqlTunnelPr
     case VC_EVENT_ERROR:
     case VC_EVENT_INACTIVITY_TIMEOUT:
     case VC_EVENT_ACTIVE_TIMEOUT:
+    case VC_EVENT_DETECT_SERVER_DEAD:
       LOG_WARN("ObMysqlSM::tunnel_handler_request_transfer_client", "event",
                ObMysqlDebugNames::get_event_name(event), K_(sm_id));
       // Did not complete request transfer tunneling. Abort the
@@ -5644,6 +5868,7 @@ int ObMysqlSM::tunnel_handler_request_transfer_server(int event, ObMysqlTunnelCo
     case VC_EVENT_ERROR:
     case VC_EVENT_INACTIVITY_TIMEOUT:
     case VC_EVENT_ACTIVE_TIMEOUT:
+    case VC_EVENT_DETECT_SERVER_DEAD:
     {
       LOG_WARN("ObMysqlSM::tunnel_handler_request_transfer_server", "event",
                ObMysqlDebugNames::get_event_name(event), K_(sm_id));
@@ -5781,17 +6006,21 @@ void ObMysqlSM::do_congestion_control_lookup()
   // 2. cur congestion is avail(base servers has been added)
   // 3. need pl lookup
   // 4. not mysql route mode
-  //
+  // 5. need use coordinator session in transaction (included in 'need pl lookup')
   // Attention! when force_retry_congested_, also need do congestion lookup
   if (OB_UNLIKELY(enable_congestion
       && sm_cluster_resource_->is_congestion_avail()
-      && trans_state_.need_pl_lookup_
+      && trans_state_.is_need_pl_lookup()
       && !trans_state_.mysql_config_params_->is_mysql_routing_mode()
       && !trans_state_.mysql_config_params_->is_mock_routing_mode())) {
     trans_state_.need_congestion_lookup_ = true;
+    LOG_DEBUG("need to do congestion lookup",
+              K(trans_state_.is_need_pl_lookup()),
+              K(trans_state_.pl_lookup_state_));
   } else {
     LOG_DEBUG("no need do congestion lookup", K_(sm_id), K(enable_congestion),
-              K(sm_cluster_resource_->is_congestion_avail()), "need_pl_lookup", trans_state_.need_pl_lookup_,
+              K(sm_cluster_resource_->is_congestion_avail()),
+              "pl_lookup_state", ObMysqlTransact::get_pl_lookup_state_string(trans_state_.pl_lookup_state_),
               "force_retry_congestion", trans_state_.force_retry_congested_,
               "route_mode", trans_state_.mysql_config_params_->server_routing_mode_);
     trans_state_.need_congestion_lookup_ = false;
@@ -5990,6 +6219,75 @@ void ObMysqlSM::do_partition_location_lookup()
   }
 }
 
+void ObMysqlSM::do_binlog_location_lookup()
+{
+  int ret = OB_SUCCESS;
+  if (OB_UNLIKELY(get_global_performance_params().enable_trace_)) {
+    milestones_.bl_lookup_begin_ = get_based_hrtime();
+    milestones_.bl_lookup_end_ = 0;
+  }
+
+  LOG_DEBUG("do binlog location lookup");
+  MYSQL_SM_SET_DEFAULT_HANDLER(&ObMysqlSM::state_binlog_location_lookup);
+  if (OB_UNLIKELY(NULL != pending_action_)) {
+    trans_state_.pll_info_.lookup_success_ = false;
+    LOG_ERROR("do_binlog_location_lookup, pending_action_ should be NULL",
+              K_(pending_action), K_(sm_id));
+    call_transact_and_set_next_state(NULL);
+  } else if (trans_state_.server_info_.addr_.is_valid()) {
+    trans_state_.pll_info_.lookup_success_ = true;
+    call_transact_and_set_next_state(NULL);
+  } else {
+    const ObTableEntryName &name = trans_state_.pll_info_.te_name_;
+    ObAction *bl_lookup_action_handle = NULL;
+    bool find_entry = false;
+    // Obtained from the cache, no longer retrieved from the remote end
+    ObTableRefHashMap &table_map = self_ethread().get_table_map();
+    ObTableEntry *tmp_entry = NULL;
+    ObTableEntryKey key(name, 0, 0);
+    tmp_entry = table_map.get(key);
+    if (OB_LIKELY(NULL != tmp_entry)) {
+      tmp_entry->renew_last_access_time();
+      ObMysqlRouteResult result;
+      result.table_entry_ = tmp_entry;
+      result.is_table_entry_from_remote_ = false;
+      tmp_entry->set_need_force_flush(false);
+      find_entry = true;
+      LOG_DEBUG("ObMysqlRoute get table entry succ", KPC(tmp_entry));
+      state_binlog_location_lookup(TABLE_ENTRY_EVENT_LOOKUP_DONE, &result);
+    }
+
+    if (OB_UNLIKELY(!find_entry)) {
+      ObRouteParam param;
+      param.cont_ = this;
+      param.need_pl_route_ = false;
+      param.force_renew_ = trans_state_.pll_info_.is_force_renew();
+      param.is_need_force_flush_ = trans_state_.pll_info_.is_need_force_flush();
+      param.mysql_proxy_ = &sm_cluster_resource_->mysql_proxy_;
+      param.timeout_us_ = hrtime_to_usec(trans_state_.mysql_config_params_->short_async_task_timeout_);
+      param.name_.shallow_copy(name);
+      param.cr_version_ = 0;
+      param.cr_id_ = 0;
+
+      LOG_DEBUG("Doing binlog location lookup", K_(sm_id), K(param));
+      bl_lookup_action_handle = NULL;
+      ret = ObMysqlRoute::get_route_entry(param, sm_cluster_resource_, bl_lookup_action_handle);
+    }
+
+    if (OB_SUCC(ret)) {
+      if (NULL == bl_lookup_action_handle) {
+        // do nothing
+      } else {
+        pending_action_ = bl_lookup_action_handle;
+      }
+    } else {
+      trans_state_.pll_info_.lookup_success_ = false;
+      LOG_WARN("fail to get binlog table entry", K_(sm_id), K(name), K(ret));
+      call_transact_and_set_next_state(NULL);
+    }
+  }
+}
+
 void ObMysqlSM::do_server_addr_lookup()
 {
   ObProxyKillQueryInfo *query_info = trans_state_.trans_info_.client_request_.query_info_;
@@ -5998,7 +6296,7 @@ void ObMysqlSM::do_server_addr_lookup()
     // call ObMysqlTransact::handle_server_addr_lookup() to handle fail / success
     call_transact_and_set_next_state(NULL);
 
-  } else if (!trans_state_.need_pl_lookup_) {
+  } else if (!trans_state_.is_need_pl_lookup()) {
     // need use last server session
     query_info->errcode_ = OB_NOT_SUPPORTED;
     LOG_WARN("[ObMysqlSM::do_server_addr_lookup] As we need use last server session, "
@@ -6028,7 +6326,7 @@ void ObMysqlSM::do_server_addr_lookup()
       // call ObMysqlTransact::handle_server_addr_lookup() to handle fail / success
       call_transact_and_set_next_state(NULL);
     }
-  }//end of trans_state_.need_pl_lookup_
+  }//end of is_need_pl_lookup
 }
 
 int ObMysqlSM::state_congestion_control_lookup(int event, void *data)
@@ -6059,7 +6357,9 @@ void ObMysqlSM::set_detect_server_info(net::ObIpEndpoint target_addr, int cnt, i
   if (OB_LIKELY(target_addr.is_valid()
       && NULL != sm_cluster_resource_
       && NULL != client_session_
-      && !client_session_->is_proxy_mysql_client_)) {
+      && !client_session_->is_proxy_mysql_client_
+      //Optimize the performance in closed scenes, 1 means accurate detection
+      && (1 == get_global_proxy_config().server_detect_mode || add_detect_server_cnt_))) {
     bool found = false;
     common::DRWLock &server_state_lock1 = sm_cluster_resource_->get_server_state_lock(0);
     common::DRWLock &server_state_lock2 = sm_cluster_resource_->get_server_state_lock(1);
@@ -6069,8 +6369,7 @@ void ObMysqlSM::set_detect_server_info(net::ObIpEndpoint target_addr, int cnt, i
       sm_cluster_resource_->get_server_state_info(sm_cluster_resource_->server_state_version_);
     for (int i = 0; !found && i < server_state_info.count(); i++) {
       ObServerStateSimpleInfo &info = server_state_info.at(i);
-      ObIpEndpoint addr;
-      ops_ip_copy(addr.sa_, info.addr_.ip_.v4_, static_cast<uint16_t>(info.addr_.port_));
+      ObIpEndpoint addr(info.addr_.get_sockaddr());
       if (addr == target_addr) {
         // add_detect_server_cnt_ prevents do_observer_open from failing before, and subtracts 1 from cnt
         if (cnt > 0 && 1 == get_global_proxy_config().server_detect_mode) {
@@ -6131,7 +6430,7 @@ int ObMysqlSM::do_observer_open()
     if (OB_UNLIKELY(trans_state_.is_rerouted_)) {
       release_server_session();
     }
-    
+
     if (add_detect_server_cnt_) {
       set_detect_server_info(trans_state_.pre_server_info_.addr_, -1, 0);
     }
@@ -6322,23 +6621,41 @@ inline int ObMysqlSM::do_oceanbase_internal_observer_open(ObMysqlServerSession *
 
   last_session = client_session_->get_server_session();
   // if need_pl_lookup is false, we must use last server session
-  // allow no last server session when OB_MYSQL_COM_STMT_CLOSE/OB_MYSQL_COM_STMT_FETCH and need_pl_lookup_ = false
+  // allow no last server session when OB_MYSQL_COM_STMT_CLOSE/OB_MYSQL_COM_STMT_FETCH and NEED_PL_LOOKUP
   obmysql::ObMySQLCmd cmd = trans_state_.trans_info_.sql_cmd_;
-  if (!trans_state_.need_pl_lookup_
+  bool is_text_ps_close = trans_state_.trans_info_.client_request_.get_parse_result().is_text_ps_drop_stmt();
+  if (!trans_state_.is_need_pl_lookup()
       && ((OB_MYSQL_COM_STMT_CLOSE != cmd
            && OB_MYSQL_COM_STMT_FETCH != cmd
-           && OB_MYSQL_COM_STMT_RESET != cmd)
+           && OB_MYSQL_COM_STMT_RESET != cmd
+           && OB_MYSQL_COM_STMT_GET_PIECE_DATA != cmd
+           && !is_text_ps_close)
           || !client_session_->is_need_return_last_bound_ss())) {
-    if (OB_ISNULL(last_session)) {
-      ret = OB_ERR_UNEXPECTED;
-      LOG_WARN("last server session is NULL, disconnect", K_(sm_id), K(ret));
-    } else if (OB_UNLIKELY(last_session->server_ip_ != trans_state_.server_info_.addr_)) {
-      ret = OB_ERR_UNEXPECTED;
-      LOG_ERROR("last server session ip is unexpected",
-                K_(last_session->server_ip), K_(trans_state_.server_info_.addr), K_(sm_id), K(ret));
-    } else {
+    ObMysqlServerSession *target_session = NULL;
+    if (trans_state_.pl_lookup_state_ == ObMysqlTransact::USE_COORDINATOR_SESSION) {
+      if (OB_FAIL(client_session_->acquire_svr_session(trans_state_.server_info_.addr_.sa_, false, target_session))) {
+        ret = OB_ERR_UNEXPECTED;
+        LOG_WARN("acquire coordinator session fail, disconnect", K_(sm_id), K(ret));
+      }
+      LOG_DEBUG("use coordinator server session", K_(sm_id));
+    } else if (trans_state_.pl_lookup_state_ == ObMysqlTransact::USE_LAST_SERVER_SESSION){
+      target_session = last_session;
       LOG_DEBUG("use last server session", K_(sm_id));
-      selected_session = last_session;
+    } else {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("unexpected pl lookup state", K(trans_state_.pl_lookup_state_));
+    }
+    if (OB_SUCC(ret)) {
+      if (OB_ISNULL(target_session)) {
+        ret = OB_ERR_UNEXPECTED;
+        LOG_WARN("target server session is NULL, disconnect", K_(sm_id), K(ret));
+      } else if (OB_UNLIKELY(target_session->server_ip_ != trans_state_.server_info_.addr_)) {
+        ret = OB_ERR_UNEXPECTED;
+        LOG_ERROR("target session ip is unexpected",
+                  K_(target_session->server_ip), K_(trans_state_.server_info_.addr), K_(sm_id), K(ret));
+      } else {
+        selected_session = target_session;
+      }
     }
   } else {
     LOG_DEBUG("sql cmd", K(cmd), K(client_session_->is_session_pool_client()));
@@ -6426,6 +6743,7 @@ inline int ObMysqlSM::do_internal_observer_open()
   int ret = OB_SUCCESS;
   ObMysqlServerSession *selected_session = NULL;
   ObProxyMysqlRequest &client_request = trans_state_.trans_info_.client_request_;
+  bool is_in_trans = ObMysqlTransact::is_in_trans(trans_state_);
 
   if (OB_LIKELY(client_session_->get_session_info().is_oceanbase_server())) {
     if (OB_FAIL(do_oceanbase_internal_observer_open(selected_session))) {
@@ -6478,20 +6796,36 @@ inline int ObMysqlSM::do_internal_observer_open()
                 "client_session version", client_info.get_session_version(),
                 "server version", server_info.get_session_var_version(),
                 "cmd", cmd);
+
+      trans_state_.trace_log_.log_it("[get_conn]",
+                                     "time", get_based_hrtime(),
+                                     "lookup", trans_state_.pl_lookup_state_,
+                                     "sql_cmd", trans_state_.trans_info_.sql_cmd_,
+                                     "stmt_type", trans_state_.trans_info_.client_request_.get_parse_result().get_stmt_type(),
+                                     "in_trans", is_in_trans,
+                                     "internal_route", get_client_session()->is_trans_internal_routing() && is_in_trans,
+                                     "svr", server_session_->server_ip_,
+                                     "sessid", server_session_->get_server_sessid());
+
       if (OB_UNLIKELY(OB_MYSQL_COM_STMT_CLOSE == cmd
-                      || OB_MYSQL_COM_STMT_RESET == cmd)) {
+                      || OB_MYSQL_COM_STMT_RESET == cmd
+                      || ObMysqlTransact::is_binlog_request(trans_state_)
+                      || client_session_->can_direct_send_request_)) {
         // no need sync var on OB_MYSQL_COM_STMT_CLOSE
         trans_state_.current_.send_action_ = ObMysqlTransact::SERVER_SEND_REQUEST;
       } else if (OB_UNLIKELY(client_info.need_reset_database(server_info))) {
         trans_state_.current_.send_action_ = ObMysqlTransact::SERVER_SEND_USE_DATABASE;
-      } else if (OB_UNLIKELY(client_info.need_reset_session_vars(server_info))) {
+      } else if (OB_UNLIKELY(client_info.is_server_support_session_var_sync() &&
+                             client_info.need_reset_user_session_vars(server_info))) {
+        trans_state_.current_.send_action_ = ObMysqlTransact::SERVER_SEND_SESSION_USER_VARS;
+      } else if (OB_UNLIKELY(!(client_info.is_server_support_session_var_sync()) &&
+                               client_info.need_reset_session_vars(server_info))) {
         trans_state_.current_.send_action_ = ObMysqlTransact::SERVER_SEND_SESSION_VARS;
-      } else if (OB_UNLIKELY(client_info.need_reset_last_insert_id(server_info))) {
-        // TODO: current version proxy parse can't judge last_insert_id exactly,
-        // so we do not judge, whether sql_reuslt has_last_insert_id here
-        trans_state_.current_.send_action_ = ObMysqlTransact::SERVER_SEND_LAST_INSERT_ID;
       } else if (OB_UNLIKELY(trans_state_.is_hold_start_trans_)) {
         trans_state_.current_.send_action_ = ObMysqlTransact::SERVER_SEND_START_TRANS;
+      } else if (OB_UNLIKELY(trans_state_.is_hold_xa_start_)) {
+        trans_state_.current_.send_action_ = ObMysqlTransact::SERVER_SEND_XA_START;
+        LOG_DEBUG("[ObMysqlSM::do_internal_observer_open] set send action SERVER_SEND_XA_START to sync xa start");
       } else if (OB_UNLIKELY(((OB_MYSQL_COM_STMT_EXECUTE == cmd)
                               || (OB_MYSQL_COM_STMT_SEND_PIECE_DATA == cmd)
                               || (OB_MYSQL_COM_STMT_SEND_LONG_DATA == cmd))
@@ -6507,6 +6841,16 @@ inline int ObMysqlSM::do_internal_observer_open()
     } else {
       if (OB_FAIL(connect_observer())) {
         LOG_WARN("failed to connection observer", K_(sm_id), K(ret));
+      } else {
+
+        trans_state_.trace_log_.log_it("[create_conn]",
+                                       "time", get_based_hrtime(),
+                                       "lookup", trans_state_.pl_lookup_state_,
+                                       "sql_cmd", trans_state_.trans_info_.sql_cmd_,
+                                       "stmt_type", trans_state_.trans_info_.client_request_.get_parse_result().get_stmt_type(),
+                                       "in_trans", is_in_trans,
+                                       "internal_route", get_client_session()->is_trans_internal_routing() && is_in_trans,
+                                       "svr", trans_state_.server_info_.addr_);
       }
     }
   }
@@ -6577,6 +6921,7 @@ int ObMysqlSM::do_internal_request_for_sharding_init_db(ObMIOBuffer *buf)
   ObProxyMysqlRequest &client_request = trans_state_.trans_info_.client_request_;
   ObMysqlClientSession *client_session = get_client_session();
   ObClientSessionInfo &client_info = client_session->get_session_info();
+  ObProxyProtocol client_procotol = get_client_session_protocol();
   
   // handle use db stmt or OB_MYSQL_COM_INIT_DB cmd when sharding
   LOG_DEBUG("sharding init db");
@@ -6606,9 +6951,11 @@ int ObMysqlSM::do_internal_request_for_sharding_init_db(ObMIOBuffer *buf)
     LOG_WARN("fail to save user login info", K_(sm_id), K(ret));
   } else {
     // if start trans is hold, we treat this resp is in trans
-    bool is_in_trans = (trans_state_.is_hold_start_trans_ || ObMysqlTransact::is_in_trans(trans_state_));
+    bool is_in_trans = (trans_state_.is_hold_xa_start_
+                        || trans_state_.is_hold_start_trans_
+                        || ObMysqlTransact::is_in_trans(trans_state_));
     if (OB_FAIL(ObMysqlResponseBuilder::build_ok_resq_with_state_changed(*buf, client_request, *client_session,
-                                                                         is_in_trans))) {
+                                                                         client_procotol, is_in_trans))) {
       LOG_WARN("[ObMysqlSM::do_internal_request] fail to build ok res", K_(sm_id), K(ret));
     }
   }
@@ -6623,12 +6970,13 @@ int ObMysqlSM::do_internal_request_for_sharding_show_db_version(ObMIOBuffer *buf
   ObProxyMysqlRequest &client_request = trans_state_.trans_info_.client_request_;
   ObMysqlClientSession *client_session = get_client_session();
   ObClientSessionInfo &client_info = client_session->get_session_info();
-  ObProxyProtocol client_protocol = client_session->get_client_session_protocol();
+  ObProxyProtocol client_protocol = get_client_session_protocol();
   Ob20ProtocolHeader &ob20_head = client_session->get_session_info().ob20_request_.ob20_header_;
   uint8_t compressed_seq = static_cast<uint8_t>(client_session->get_compressed_seq() + 1);
   Ob20ProtocolHeaderParam ob20_head_param(client_session->get_cs_id(), ob20_head.request_id_, compressed_seq,
-                                          compressed_seq, true, false,
-                                          client_session->is_client_support_new_extra_info());
+                                          compressed_seq, true, false, false,
+                                          client_session->is_client_support_new_extra_info(),
+                                          client_session->is_trans_internal_routing());
   ObCmdInfo info(static_cast<uint8_t>(client_request.get_packet_meta().pkt_seq_ + 1),
                  trans_state_.mysql_config_params_->internal_cmd_mem_limited_, client_protocol, ob20_head_param);
 
@@ -6660,12 +7008,13 @@ int ObMysqlSM::do_internal_request_for_sharding_show_db(ObMIOBuffer *buf)
   ObProxyMysqlRequest &client_request = trans_state_.trans_info_.client_request_;
   ObMysqlClientSession *client_session = get_client_session();
   ObClientSessionInfo &client_info = client_session->get_session_info();
-  ObProxyProtocol client_protocol = client_session->get_client_session_protocol();
+  ObProxyProtocol client_protocol = get_client_session_protocol();
   Ob20ProtocolHeader &ob20_head = client_session->get_session_info().ob20_request_.ob20_header_;
   uint8_t compressed_seq = static_cast<uint8_t>(client_session->get_compressed_seq() + 1);
   Ob20ProtocolHeaderParam ob20_head_param(client_session->get_cs_id(), ob20_head.request_id_, compressed_seq,
-                                          compressed_seq, true, false,
-                                          client_session->is_client_support_new_extra_info());
+                                          compressed_seq, true, false, false,
+                                          client_session->is_client_support_new_extra_info(),
+                                          client_session->is_trans_internal_routing());
   ObCmdInfo info(static_cast<uint8_t>(client_request.get_packet_meta().pkt_seq_ + 1),
                  trans_state_.mysql_config_params_->internal_cmd_mem_limited_, client_protocol, ob20_head_param);
 
@@ -6688,12 +7037,13 @@ int ObMysqlSM::do_internal_request_for_sharding_show_table(ObMIOBuffer *buf)
   ObProxyMysqlRequest &client_request = trans_state_.trans_info_.client_request_;
   ObMysqlClientSession *client_session = get_client_session();
   ObClientSessionInfo &client_info = client_session->get_session_info();
-  ObProxyProtocol client_protocol = client_session->get_client_session_protocol();
+  ObProxyProtocol client_protocol = get_client_session_protocol();
   Ob20ProtocolHeader &ob20_head = client_session->get_session_info().ob20_request_.ob20_header_;
   uint8_t compressed_seq = static_cast<uint8_t>(client_session->get_compressed_seq() + 1);
   Ob20ProtocolHeaderParam ob20_head_param(client_session->get_cs_id(), ob20_head.request_id_, compressed_seq,
-                                          compressed_seq, true, false,
-                                          client_session->is_client_support_new_extra_info());
+                                          compressed_seq, true, false, false,
+                                          client_session->is_client_support_new_extra_info(),
+                                          client_session->is_trans_internal_routing());
   ObCmdInfo info(static_cast<uint8_t>(client_request.get_packet_meta().pkt_seq_ + 1),
                  trans_state_.mysql_config_params_->internal_cmd_mem_limited_, client_protocol, ob20_head_param);
 
@@ -6727,7 +7077,7 @@ int ObMysqlSM::do_internal_request_for_sharding_show_table_status(ObMIOBuffer *b
   ObProxyMysqlRequest &client_request = trans_state_.trans_info_.client_request_;
   ObMysqlClientSession *client_session = get_client_session();
   ObClientSessionInfo &client_info = client_session->get_session_info();
-  ObProxyProtocol client_protocol = client_session->get_client_session_protocol();
+  ObProxyProtocol client_protocol = get_client_session_protocol();
   Ob20ProtocolHeader &ob20_head = client_session->get_session_info().ob20_request_.ob20_header_;
   uint8_t compressed_seq = static_cast<uint8_t>(client_session->get_compressed_seq() + 1);
 
@@ -6738,8 +7088,9 @@ int ObMysqlSM::do_internal_request_for_sharding_show_table_status(ObMIOBuffer *b
   ObString logic_tenant_name;
 
   Ob20ProtocolHeaderParam ob20_head_param(client_session->get_cs_id(), ob20_head.request_id_, compressed_seq,
-                                          compressed_seq, true, false,
-                                          client_session->is_client_support_new_extra_info());
+                                          compressed_seq, true, false, false,
+                                          client_session->is_client_support_new_extra_info(),
+                                          client_session->is_trans_internal_routing());
   ObCmdInfo info(static_cast<uint8_t>(client_request.get_packet_meta().pkt_seq_ + 1),
                  trans_state_.mysql_config_params_->internal_cmd_mem_limited_, client_protocol, ob20_head_param);
 
@@ -6761,28 +7112,29 @@ int ObMysqlSM::do_internal_request_for_sharding_show_table_status(ObMIOBuffer *b
   return ret;
 }
 
-int ObMysqlSM::do_internal_request_for_sharding_show_topology(ObMIOBuffer *buf)
+int ObMysqlSM::do_internal_request_for_sharding_show_elastic_id(ObMIOBuffer *buf)
 {
   int ret = OB_SUCCESS;
 
   ObProxyMysqlRequest &client_request = trans_state_.trans_info_.client_request_;
   ObMysqlClientSession *client_session = get_client_session();
   ObClientSessionInfo &client_info = client_session->get_session_info();
-  ObProxyProtocol client_protocol = client_session->get_client_session_protocol();
+  ObProxyProtocol client_protocol = get_client_session_protocol();
   Ob20ProtocolHeader &ob20_head = client_session->get_session_info().ob20_request_.ob20_header_;
   uint8_t compressed_seq = static_cast<uint8_t>(client_session->get_compressed_seq() + 1);
   Ob20ProtocolHeaderParam ob20_head_param(client_session->get_cs_id(), ob20_head.request_id_, compressed_seq,
-                                          compressed_seq, true, false,
-                                          client_session->is_client_support_new_extra_info());
+                                          compressed_seq, true, false, false,
+                                          client_session->is_client_support_new_extra_info(),
+                                          client_session->is_trans_internal_routing());
   ObCmdInfo info(static_cast<uint8_t>(client_request.get_packet_meta().pkt_seq_ + 1),
                  trans_state_.mysql_config_params_->internal_cmd_mem_limited_, client_protocol, ob20_head_param);
 
-  // handle show topology when sharding
+  // handle show elastic id when sharding
   ObInternalCmdInfo &cmd_info = *client_request.cmd_info_;
   ObString logic_db_name = cmd_info.get_like_string();
   ObString logic_tenant_name;
   ObString group_name = cmd_info.get_value_string();
-  LOG_DEBUG("sharding show topology", K(logic_db_name), K(group_name));
+  LOG_DEBUG("sharding show elastic id", K(logic_db_name), K(group_name));
   if (logic_db_name.empty()) {
     if (OB_FAIL(client_info.get_logic_database_name(logic_db_name))) {
       LOG_WARN("fail to get_logic_db_name", K(ret));
@@ -6790,13 +7142,52 @@ int ObMysqlSM::do_internal_request_for_sharding_show_topology(ObMIOBuffer *buf)
   }
   if (OB_FAIL(ret)) {
     // do nothing
-  } if (OB_FAIL(client_info.get_logic_tenant_name(logic_tenant_name))) {
+  } else if (OB_FAIL(client_info.get_logic_tenant_name(logic_tenant_name))) {
     LOG_WARN("fail to get_logic_tenant_name", K(ret));
-  } else if (OB_FAIL(ObShowTopologyHandler::show_topology_cmd_callback(buf, info, logic_tenant_name,
-                                                                       logic_db_name, group_name))) {
-    LOG_WARN("[ObMysqlSM::do_internal_request] fail to handle show topology", K_(sm_id), K(ret));
+  } else if (OB_FAIL(ObShowTopologyHandler::show_elastic_id_cmd_callback(buf, info,
+                      logic_tenant_name, logic_db_name, group_name))) {
+    LOG_WARN("[ObMysqlSM::do_internal_request] fail to handle show elastic id", K_(sm_id), K(ret));
   }
+  return ret;
+}
 
+
+int ObMysqlSM::do_internal_request_for_sharding_show_topology(ObMIOBuffer *buf)
+{
+  int ret = OB_SUCCESS;
+
+  ObProxyMysqlRequest &client_request = trans_state_.trans_info_.client_request_;
+  ObMysqlClientSession *client_session = get_client_session();
+  ObClientSessionInfo &client_info = client_session->get_session_info();
+  ObProxyProtocol client_protocol = get_client_session_protocol();
+  Ob20ProtocolHeader &ob20_head = client_session->get_session_info().ob20_request_.ob20_header_;
+  uint8_t compressed_seq = static_cast<uint8_t>(client_session->get_compressed_seq() + 1);
+  Ob20ProtocolHeaderParam ob20_head_param(client_session->get_cs_id(), ob20_head.request_id_, compressed_seq,
+                                          compressed_seq, true, false, false,
+                                          client_session->is_client_support_new_extra_info(),
+                                          client_session->is_proxy_enable_trans_internal_routing());
+  ObCmdInfo info(static_cast<uint8_t>(client_request.get_packet_meta().pkt_seq_ + 1),
+                 trans_state_.mysql_config_params_->internal_cmd_mem_limited_, client_protocol, ob20_head_param);
+
+  // handle show topology when sharding
+  ObString logic_db_name;
+  ObString logic_tenant_name;
+  ObString logic_table_name = client_request.get_parse_result().get_table_name();
+  LOG_DEBUG("sharding show topology", K(logic_db_name));
+  if (logic_db_name.empty()) {
+    if (OB_FAIL(client_info.get_logic_database_name(logic_db_name))) {
+      LOG_WARN("fail to get_logic_db_name", K(ret));
+    }
+  }
+  if (OB_FAIL(ret)) {
+    // do nothing
+  } else if (OB_FAIL(client_info.get_logic_tenant_name(logic_tenant_name))) {
+    LOG_WARN("fail to get_logic_tenant_name", K(ret));
+  } else if (OB_FAIL(client_info.get_logic_database_name(logic_db_name))) {
+  } else if (OB_FAIL(ObShowTopologyHandler::show_topology_cmd_callback(buf, info,
+                      logic_tenant_name, logic_db_name, logic_table_name))) {
+    LOG_WARN("[ObMysqlSM::do_internal_request] fail to handle show topology", K_(sm_id), K(ret));
+  }
   return ret;
 }
 
@@ -6807,12 +7198,13 @@ int ObMysqlSM::do_internal_request_for_sharding_select_db(ObMIOBuffer *buf)
   ObProxyMysqlRequest &client_request = trans_state_.trans_info_.client_request_;
   ObMysqlClientSession *client_session = get_client_session();
   ObClientSessionInfo &client_info = client_session->get_session_info();
-  ObProxyProtocol client_protocol = client_session->get_client_session_protocol();
+  ObProxyProtocol client_protocol = get_client_session_protocol();
   Ob20ProtocolHeader &ob20_head = client_session->get_session_info().ob20_request_.ob20_header_;
   uint8_t compressed_seq = static_cast<uint8_t>(client_session->get_compressed_seq() + 1);
   Ob20ProtocolHeaderParam ob20_head_param(client_session->get_cs_id(), ob20_head.request_id_, compressed_seq,
-                                          compressed_seq, true, false,
-                                          client_session->is_client_support_new_extra_info());
+                                          compressed_seq, true, false, false,
+                                          client_session->is_client_support_new_extra_info(),
+                                          client_session->is_trans_internal_routing());
   ObCmdInfo info(static_cast<uint8_t>(client_request.get_packet_meta().pkt_seq_ + 1),
                  trans_state_.mysql_config_params_->internal_cmd_mem_limited_, client_protocol, ob20_head_param);
 
@@ -6850,6 +7242,8 @@ void ObMysqlSM::do_internal_request()
               K_(sm_id), K(ret));
   } else {
     buf = trans_state_.internal_buffer_;
+    ObProxyProtocol client_protocol = get_client_session_protocol();
+    
     switch (trans_state_.trans_info_.sql_cmd_) {
       case OB_MYSQL_COM_HANDSHAKE: {
         OMPKHandshake handshake;
@@ -6885,7 +7279,7 @@ void ObMysqlSM::do_internal_request()
           }
         }
 
-        if (FAILEDx(ObProxyPacketWriter::write_packet(*buf, *client_session_, handshake))) {
+        if (FAILEDx(ObProxyPacketWriter::write_packet(*buf, *client_session_, client_protocol, handshake))) {
           LOG_WARN("fail to build handshake packet", K_(sm_id), K(ret));
         } else {
           ObMySQLCapabilityFlags capability(handshake.get_server_capability());
@@ -6905,7 +7299,8 @@ void ObMysqlSM::do_internal_request()
           ObMysqlAuthRequest &orig_auth_req = client_session_->get_session_info().get_login_req();
           const ObMySQLCapabilityFlags &capability = client_session_->get_session_info().get_orig_capability_flags();
           uint8_t pkt_seq = static_cast<uint8_t>(orig_auth_req.get_packet_meta().pkt_seq_ + 1);
-          if (OB_FAIL(ObProxyPacketWriter::write_ok_packet(*buf, *client_session_, pkt_seq, 0, capability))) {
+          if (OB_FAIL(ObProxyPacketWriter::write_ok_packet(*buf, *client_session_, client_protocol,
+                                                           pkt_seq, 0, capability))) {
             LOG_WARN("fail to write ok packet", K(ret));
           }
         }
@@ -6915,7 +7310,8 @@ void ObMysqlSM::do_internal_request()
         LOG_DEBUG("proxy response OB_MYSQL_COM_PING ok packet", K_(sm_id), "cs_id", client_session_->get_cs_id());
         uint8_t pkt_seq = static_cast<uint8_t>(trans_state_.trans_info_.client_request_.get_packet_meta().pkt_seq_ + 1);
         const ObMySQLCapabilityFlags &capability = client_session_->get_session_info().get_orig_capability_flags();
-        if (OB_FAIL(ObProxyPacketWriter::write_ok_packet(*buf, *client_session_, pkt_seq, 0, capability))) {
+        if (OB_FAIL(ObProxyPacketWriter::write_ok_packet(*buf, *client_session_, client_protocol,
+                                                         pkt_seq, 0, capability))) {
           LOG_WARN("fail to encode OB_MYSQL_COM_PING response ok packet", K(ret));
         }
         break;
@@ -6946,7 +7342,8 @@ void ObMysqlSM::do_internal_request()
 
         uint8_t pkt_seq = static_cast<uint8_t>(trans_state_.trans_info_.client_request_.get_packet_meta().pkt_seq_ + 1);
         const ObMySQLCapabilityFlags &capability = client_info.get_orig_capability_flags();
-        if (OB_FAIL(ObProxyPacketWriter::write_ok_packet(*buf, *client_session_, pkt_seq, 0, capability))) {
+        if (OB_FAIL(ObProxyPacketWriter::write_ok_packet(*buf, *client_session_, client_protocol,
+                                                         pkt_seq, 0, capability))) {
           LOG_WARN("[ObMysqlSM::do_internal_request] fail to build OB_MYSQL_COM_STMT_RESET response ok packet",
                    K_(sm_id), K(client_ps_id), K(ret));
         }
@@ -6970,17 +7367,28 @@ void ObMysqlSM::do_internal_request()
       case OB_MYSQL_COM_DELAYED_INSERT:
       case OB_MYSQL_COM_CHANGE_USER:
       case OB_MYSQL_COM_SHUTDOWN:
+      case OB_MYSQL_COM_STMT_PREPARE_EXECUTE:
       case OB_MYSQL_COM_DAEMON: {
         ObProxyMysqlRequest &client_request = trans_state_.trans_info_.client_request_;
         ObClientSessionInfo &client_info = client_session_->get_session_info();
         uint8_t next_seq = static_cast<uint8_t>(client_request.get_packet_meta().pkt_seq_ + 1);
         // 1. hold_start_trans
         if (client_request.get_parse_result().need_hold_start_trans()) {
+          // hold begin reset hold xa start
           trans_state_.is_hold_start_trans_ = true;
-          if (OB_FAIL(ObMysqlResponseBuilder::build_start_trans_resp(*buf, client_request, *client_session_))) {
+          if (OB_FAIL(ObMysqlResponseBuilder::build_start_trans_resp(*buf, client_request,
+                                                                     *client_session_, client_protocol))) {
             LOG_WARN("[ObMysqlSM::do_internal_request] fail to build start trans resp", K_(sm_id), K(ret));
           }
-
+        // hold_xa_start
+        } else if (client_request.get_parse_result().need_hold_xa_start()) {
+          LOG_DEBUG("[ObMysqlSM::do_internal_request] to build xa start resp");
+          // hold xa start reset hold begin
+          trans_state_.is_hold_xa_start_ = true;
+          if (OB_FAIL(ObMysqlResponseBuilder::build_prepare_execute_xa_start_resp(*buf, client_request,
+                                                                                  *client_session_, client_protocol))) {
+            LOG_WARN("[ObMysqlSM::do_internal_request] fail to build xa start resp", K_(sm_id), K(ret));
+          }
         // 2. bad_route_request
         } else if (ObMysqlTransact::is_bad_route_request(trans_state_)) {
           trans_state_.mysql_errcode_ = OB_NOT_SUPPORTED;
@@ -6992,6 +7400,7 @@ void ObMysqlSM::do_internal_request()
           } else {
             // throw away the former 'begin' or 'start transaction'
             trans_state_.is_hold_start_trans_ = false;
+            trans_state_.is_hold_xa_start_ = false;
           }
 
          // 3. not_supported
@@ -7004,32 +7413,21 @@ void ObMysqlSM::do_internal_request()
         // 4. select_tx_ro
         } else if (client_request.get_parse_result().is_select_tx_ro()) {
           // if start trans is hold, we treat this resp is in trans
-          bool is_in_trans = (trans_state_.is_hold_start_trans_ || ObMysqlTransact::is_in_trans(trans_state_));
+          bool is_in_trans = (trans_state_.is_hold_xa_start_
+                              || trans_state_.is_hold_start_trans_
+                              || ObMysqlTransact::is_in_trans(trans_state_));
           if (OB_FAIL(ObMysqlResponseBuilder::build_select_tx_ro_resp(*buf, client_request, *client_session_,
-                                                                      is_in_trans))) {
+                                                                      client_protocol, is_in_trans))) {
             LOG_WARN("[ObMysqlSM::do_internal_request] fail to build select @@tx_read_only", K_(sm_id), K(ret));
           }
-
-        // 5. set_autocommit_0
-        } else if (client_request.get_parse_result().is_set_autocommit_0()) {
-          // if start trans is hold, we treat this resp is in trans
-          bool is_in_trans = (trans_state_.is_hold_start_trans_ || ObMysqlTransact::is_in_trans(trans_state_));
-          ObObj value;
-          value.set_int(0);
-          if (client_info.update_common_sys_variable("autocommit", value, true, false)) {
-            LOG_WARN("fail to update sys variable", K_(sm_id), K(ret));
-          } else if (OB_FAIL(ObMysqlResponseBuilder::build_ok_resq_with_state_changed(*buf, client_request,
-                                                                                 *client_session_, is_in_trans))) {
-            LOG_WARN("[ObMysqlSM::do_internal_request] fail to build set autocommit = 0", K_(sm_id), K(ret));
-          }
-
         // 6. ping_proxy
         } else if (client_request.get_parse_result().is_ping_proxy_cmd()
                    && !client_request.get_parse_result().is_internal_error_cmd()) {
           if (OB_LIKELY(get_global_hot_upgrade_info().need_conn_accept_)) {
             uint8_t pkt_seq = static_cast<uint8_t>(trans_state_.trans_info_.client_request_.get_packet_meta().pkt_seq_ + 1);
             const ObMySQLCapabilityFlags &capability = client_session_->get_session_info().get_orig_capability_flags();
-            if (OB_FAIL(ObProxyPacketWriter::write_ok_packet(*buf, *client_session_, pkt_seq, 0, capability))) {
+            if (OB_FAIL(ObProxyPacketWriter::write_ok_packet(*buf, *client_session_, client_protocol,
+                                                             pkt_seq, 0, capability))) {
               LOG_WARN("fail to write ok packet", K(ret));
             }
           } else {
@@ -7044,7 +7442,8 @@ void ObMysqlSM::do_internal_request()
             // python mysql will send 'SET autocommit=0' after connected, proxysys need resp ok packet
             uint8_t pkt_seq = static_cast<uint8_t>(trans_state_.trans_info_.client_request_.get_packet_meta().pkt_seq_ + 1);
             const ObMySQLCapabilityFlags &capability = client_session_->get_session_info().get_orig_capability_flags();
-            if (OB_FAIL(ObProxyPacketWriter::write_ok_packet(*buf, *client_session_, pkt_seq, 0, capability))) {
+            if (OB_FAIL(ObProxyPacketWriter::write_ok_packet(*buf, *client_session_, client_protocol,
+                                                             pkt_seq, 0, capability))) {
               LOG_WARN("fail to build ok packet", K(ret));
             }
           } else {
@@ -7058,15 +7457,14 @@ void ObMysqlSM::do_internal_request()
         // 8. select route_addr
         } else if (client_request.get_parse_result().is_select_route_addr()) {
           ObMysqlServerSession *last_session = client_session_->get_server_session();
-          int64_t addr = 0;
           if (NULL != last_session && NULL != last_session->get_netvc()) {
-            addr = ObMysqlTransact::build_addr_from_ip_port(
-                      ntohl(last_session->get_netvc()->get_remote_ip()),
-                      last_session->get_netvc()->get_remote_port());
             // if start trans is hold, we treat this resp is in trans
-            bool is_in_trans = (trans_state_.is_hold_start_trans_ || ObMysqlTransact::is_in_trans(trans_state_));
+            bool is_in_trans = (trans_state_.is_hold_xa_start_
+                                || trans_state_.is_hold_start_trans_
+                                || ObMysqlTransact::is_in_trans(trans_state_));
             if (OB_FAIL(ObMysqlResponseBuilder::build_select_route_addr_resp(*buf, client_request,
-                                                                             *client_session_, is_in_trans, addr))) {
+                                                        *client_session_, client_protocol, is_in_trans,
+                                                        last_session->get_netvc()->get_remote_addr()))) {
               LOG_WARN("[ObMysqlSM::do_internal_request] fail to build select @obproxy_route_addr", K_(sm_id), K(ret));
             }
           } else {
@@ -7081,9 +7479,11 @@ void ObMysqlSM::do_internal_request()
         } else if (client_request.get_parse_result().is_set_route_addr()) {
           client_info.set_obproxy_route_addr(client_request.get_parse_result().cmd_info_.integer_[0]);
           // if start trans is hold, we treat this resp is in trans
-          bool is_in_trans = (trans_state_.is_hold_start_trans_ || ObMysqlTransact::is_in_trans(trans_state_));
+          bool is_in_trans = (trans_state_.is_hold_xa_start_
+                              || trans_state_.is_hold_start_trans_
+                              || ObMysqlTransact::is_in_trans(trans_state_));
           if (OB_FAIL(ObMysqlResponseBuilder::build_set_route_addr_resp(*buf, client_request, *client_session_,
-                                                                        is_in_trans))) {
+                                                                        client_protocol, is_in_trans))) {
             LOG_WARN("[ObMysqlSM::do_internal_request] fail to build set @obproxy_route_addr", K_(sm_id), K(ret));
           } else {
             LOG_DEBUG("@obproxy_route_addr is set", K(client_info.get_obproxy_route_addr()));
@@ -7145,6 +7545,11 @@ void ObMysqlSM::do_internal_request()
           if (OB_FAIL(do_internal_request_for_sharding_show_table_status(buf))) {
             LOG_WARN("fail to do internal request for sharding show db", K_(sm_id), K(ret));
           }
+        } else if (client_session_->get_session_info().is_sharding_user()
+                   && client_request.get_parse_result().is_show_elastic_id_stmt()) {
+          if (OB_FAIL(do_internal_request_for_sharding_show_elastic_id(buf))) {
+            LOG_WARN("fail to do internal request for sharding show db", K_(sm_id), K(ret));
+          }
         } else if (client_session_->get_session_info().is_sharding_user()
                    && client_request.get_parse_result().is_show_topology_stmt()) {
           if (OB_FAIL(do_internal_request_for_sharding_show_topology(buf))) {
@@ -7158,9 +7563,11 @@ void ObMysqlSM::do_internal_request()
         // 13. select_proxy_version
         } else if (client_request.get_parse_result().is_select_proxy_version()) {
           // if start trans is hold, we treat this resp is in trans
-          bool is_in_trans = (trans_state_.is_hold_start_trans_ || ObMysqlTransact::is_in_trans(trans_state_));
-          if (OB_FAIL(ObMysqlResponseBuilder::build_select_proxy_version_resp(*buf, client_request,
-                                                                              *client_session_, is_in_trans))) {
+          bool is_in_trans = (trans_state_.is_hold_xa_start_
+                              || trans_state_.is_hold_start_trans_
+                              || ObMysqlTransact::is_in_trans(trans_state_));
+          if (OB_FAIL(ObMysqlResponseBuilder::build_select_proxy_version_resp(*buf, client_request, *client_session_,
+                                                                              client_protocol, is_in_trans))) {
             LOG_WARN("[ObMysqlSM::do_internal_request] fail to build select proxy_version", K_(sm_id), K(ret));
           }
         // 14. drop prepare stmt
@@ -7169,9 +7576,9 @@ void ObMysqlSM::do_internal_request()
           uint32_t client_ps_id = client_info.get_client_ps_id();
           uint8_t pkt_seq = static_cast<uint8_t>(trans_state_.trans_info_.client_request_.get_packet_meta().pkt_seq_ + 1);
           const ObMySQLCapabilityFlags &capability = client_info.get_orig_capability_flags();
-          if (OB_FAIL(ObMysqlPacketUtil::encode_ok_packet(*buf, pkt_seq, 0, capability))) {
-            LOG_WARN("[ObMysqlSM::do_internal_request] fail to encode drop/deallocate prepare stmt response ok packet",
-                     K_(sm_id), K(client_ps_id), K(ret));
+          if (OB_FAIL(ObProxyPacketWriter::write_ok_packet(*buf, *client_session_, client_protocol,
+                                                           pkt_seq, 0, capability))) {
+            LOG_WARN("fail to write ok packet", K(ret));
           } else {
             client_info.delete_text_ps_name_entry(text_ps_name);
             client_info.remove_ps_id_addrs(client_ps_id);
@@ -7195,9 +7602,10 @@ void ObMysqlSM::do_internal_request()
             Ob20ProtocolHeader &ob20_head = client_session_->get_session_info().ob20_request_.ob20_header_;
             uint8_t compressed_seq = static_cast<uint8_t>(client_session_->get_compressed_seq() + 1);
             Ob20ProtocolHeaderParam ob20_head_param(client_session_->get_cs_id(), ob20_head.request_id_, compressed_seq,
-                                                    compressed_seq, true, false,
-                                                    client_session_->is_client_support_new_extra_info());
-            cmd_info.set_protocol(client_session_->get_client_session_protocol());
+                                                    compressed_seq, true, false, false,
+                                                    client_session_->is_client_support_new_extra_info(),
+                                                    client_session_->is_trans_internal_routing());
+            cmd_info.set_protocol(get_client_session_protocol());
             cmd_info.set_ob20_head_param(ob20_head_param);
 
             ObAction *cmd_handler = NULL;
@@ -7270,6 +7678,7 @@ inline void ObMysqlSM::set_client_abort(const ObMysqlTransact::ObAbortStateType
       break;
 
     case VC_EVENT_ERROR:
+    case VC_EVENT_DETECT_SERVER_DEAD:
       trans_state_.client_info_.state_ = ObMysqlTransact::CONNECTION_ERROR;
       xflush_head = XFH_CONNECTION_ERROR;
       break;
@@ -7310,7 +7719,7 @@ inline void ObMysqlSM::set_client_abort(const ObMysqlTransact::ObAbortStateType
              "request_cmd", get_mysql_cmd_str(trans_state_.trans_info_.client_request_.get_packet_meta().cmd_),
              "sql_cmd", get_mysql_cmd_str(trans_state_.trans_info_.sql_cmd_),
              "sql", trans_state_.trans_info_.get_print_sql());
-  } else {
+  } else if (client_session_->get_session_info().get_priv_info().user_name_ != ObProxyTableInfo::DETECT_USERNAME_USER) {
     LOG_WARN("client will abort soon",
              K_(sm_id),
              K(cs_id),
@@ -7515,9 +7924,10 @@ void ObMysqlSM::handle_observer_open()
         //fall through
       case ObMysqlTransact::SERVER_SEND_SESSION_VARS:
         //fall through
-      case ObMysqlTransact::SERVER_SEND_LAST_INSERT_ID:
+      case ObMysqlTransact::SERVER_SEND_SESSION_USER_VARS:
         //fall through
       case ObMysqlTransact::SERVER_SEND_START_TRANS:
+      case ObMysqlTransact::SERVER_SEND_XA_START:
         //fall through
       case ObMysqlTransact::SERVER_SEND_PREPARE:
       case ObMysqlTransact::SERVER_SEND_TEXT_PS_PREPARE:
@@ -7654,7 +8064,8 @@ void ObMysqlSM::handle_server_setup_error(int event, void *data)
                                           : ObMysqlTransact::CONNECTION_CLOSED);
           break;
         }
-        case VC_EVENT_ERROR: {
+        case VC_EVENT_ERROR:
+        case VC_EVENT_DETECT_SERVER_DEAD: {
           trans_state_.current_.state_ = ObMysqlTransact::CONNECTION_ERROR;
           break;
         }
@@ -7786,13 +8197,15 @@ int ObMysqlSM::setup_client_transfer(ObMysqlVCType to_vc_type)
       switch (to_vc_type) {
         case MYSQL_TRANSFORM_VC:
           MYSQL_SM_SET_DEFAULT_HANDLER(&ObMysqlSM::state_request_wait_for_transform_read);
-          if (OB_ISNULL(api_.request_transform_info_.entry_)
-              || api_.request_transform_info_.entry_->vc_ != api_.request_transform_info_.vc_) {
+          if (OB_ISNULL(api_.request_transform_info_.entry_)) {
+            ret = OB_ERR_UNEXPECTED;
+            LOG_WARN("invalid internal state", KP_(api_.request_transform_info_.vc), K_(sm_id), K(ret));
+          } else if (api_.request_transform_info_.entry_->vc_ != api_.request_transform_info_.vc_) {
             ret = OB_ERR_UNEXPECTED;
             LOG_WARN("invalid internal state",
-                     K_(api_.request_transform_info_.entry),
-                     K_(api_.request_transform_info_.entry_->vc),
-                     K_(api_.request_transform_info_.vc), K_(sm_id), K(ret));
+                     KP_(api_.request_transform_info_.entry),
+                     KP_(api_.request_transform_info_.entry_->vc),
+                     KP_(api_.request_transform_info_.vc), K_(sm_id), K(ret));
           } else if (OB_ISNULL(c = tunnel_.add_consumer(api_.request_transform_info_.entry_->vc_,
                                                         client_entry_->vc_,
                                                         &ObMysqlSM::tunnel_handler_transform_write,
@@ -8015,7 +8428,8 @@ int ObMysqlSM::setup_server_request_send()
       server_entry_->write_buffer_ = (buf_start != client_buffer_reader_) ? buf_start->writer() : NULL;
 
       // set query_timeout to each request, ddl stmt will never timeout
-      if (OB_UNLIKELY(trans_state_.trans_info_.client_request_.get_parse_result().is_ddl_stmt())) {
+      if (OB_UNLIKELY(trans_state_.trans_info_.client_request_.get_parse_result().is_ddl_stmt()
+                      || ObMysqlTransact::is_binlog_request(trans_state_))) {
         cancel_server_query_timeout();
       // if PL/SQL:
       //  1. if in trans, use trx timeout
@@ -8026,7 +8440,9 @@ int ObMysqlSM::setup_server_request_send()
       } else if (OB_UNLIKELY(trans_state_.trans_info_.client_request_.get_parse_result().is_call_stmt()
                  || trans_state_.trans_info_.client_request_.get_parse_result().is_text_ps_call_stmt()
                  || trans_state_.trans_info_.client_request_.get_parse_result().has_anonymous_block())) {
-        if (trans_state_.is_hold_start_trans_ || ObMysqlTransact::is_in_trans(trans_state_)) {
+        if (trans_state_.is_hold_xa_start_
+            || trans_state_.is_hold_start_trans_
+            || ObMysqlTransact::is_in_trans(trans_state_)) {
           set_server_trx_timeout();
         } else {
           cancel_server_query_timeout();
@@ -8237,7 +8653,9 @@ int ObMysqlSM::setup_internal_transfer(MysqlSMHandler handler_arg)
           // if the internal request is not the first request and not proxysys,
           // it means that it is in trans (or hold trans), in this case we do NOT change the trans_state_
           if (trans_state_.is_trans_first_request_) {
-            if (trans_state_.is_auth_request_ || trans_state_.is_hold_start_trans_) {
+            if (trans_state_.is_auth_request_
+                || trans_state_.is_hold_start_trans_
+                || trans_state_.is_hold_xa_start_) {
               trans_state_.current_.state_ = ObMysqlTransact::CMD_COMPLETE;
             } else {
               // proxysys && !OB_MYSQL_COM_LOGIN &&!OB_MYSQL_COM_HANDSHAKE will also enter here
@@ -8349,6 +8767,11 @@ int ObMysqlSM::setup_server_transfer()
       if (is_resultset) {
         LOG_ERROR("compress protocol's never reach here", K(is_resultset));
       }
+    } else if (get_global_proxy_config().enable_binlog_service
+        && (OB_MYSQL_COM_REGISTER_SLAVE == trans_state_.trans_info_.sql_cmd_
+        || OB_MYSQL_COM_BINLOG_DUMP == trans_state_.trans_info_.sql_cmd_
+        || OB_MYSQL_COM_BINLOG_DUMP_GTID == trans_state_.trans_info_.sql_cmd_)) {
+      analyzer = &analyzer_;
     } else {
       analyzer = is_resultset ? &analyzer_ : NULL;
     }
@@ -8384,6 +8807,7 @@ int ObMysqlSM::setup_cmd_complete()
               reinterpret_cast<const void*>(client_session_->get_last_bound_server_session()),
               K_(sm_id), K(ret));
   } else {
+    ObMysqlTransact::record_trans_state(trans_state_, ObMysqlTransact::is_in_trans(trans_state_));
     set_detect_server_info(trans_state_.server_info_.addr_, -1, ObTimeUtility::current_time());
     if (OB_UNLIKELY(add_detect_server_cnt_)) {
       LOG_ERROR("setup_cmd_complete, add_detect_server_cnt_ should be false");
@@ -8458,32 +8882,63 @@ int ObMysqlSM::setup_cmd_complete()
       }
     }
 
-    // it's necessary to end full link trace resource after trans/resp finished
-    if (OB_FAIL(handle_resp_for_end_flt_trace(ObMysqlTransact::TRANSACTION_COMPLETE == trans_state_.current_.state_))) {
-      LOG_WARN("fail to handle resp for end flt trace", K(ret));
-    } else {
-      cmd_size_stats_.reset();
-      if (OB_UNLIKELY(get_global_performance_params().enable_trace_)) {
-        cmd_time_stats_.reset();
-      }
-      trans_state_.reset();
-      // reset ps info
-      if (NULL != server_session_) {
-        server_session_->get_session_info().reset_server_ps_id();
-      }
-      if (NULL != client_session_) {
-        client_session_->get_session_info().reset_recv_client_ps_id();
-        client_session_->get_session_info().reset_client_ps_id();
-        client_session_->get_session_info().reset_ps_entry();
-        client_session_->get_session_info().reset_client_cursor_id();
+    // consume the ob20 tail crc(4) in client buf reader while analyzed all the mysql packet in ob20 payload
+    ObClientSessionInfo &client_session_info = get_client_session()->get_session_info();
+    ObProxyProtocol client_proto = get_client_session_protocol();
+    bool ob20_req_received_done = client_session_info.ob20_request_.ob20_request_received_done_;
+    int64_t ob20_req_remain_payload_len = client_session_info.ob20_request_.remain_payload_len_;
+    if (client_proto == ObProxyProtocol::PROTOCOL_OB20
+        && ob20_req_received_done
+        && ob20_req_remain_payload_len == 0) {
+      client_session_info.ob20_request_.reset();
+      int64_t read_avail = client_buffer_reader_->read_avail();
+      LOG_DEBUG("before handle tail crc in setup cmd complete", K(read_avail));
+      if (OB_LIKELY(read_avail >= OB20_PROTOCOL_TAILER_LENGTH)) {
+        if (OB_FAIL(client_buffer_reader_->consume(OB20_PROTOCOL_TAILER_LENGTH))) {
+          LOG_WARN("fail to consume the last crc buffer in client request buffer", K(ret));
+        }
+      } else {
+        // nothing
+        // cause buffer could be consumed all before, eg: handle internal request
       }
+    }
 
-      // wait new client request
-      if (OB_FAIL(setup_client_request_read())) {
-        LOG_WARN("failed to setup_client_request_read", K_(sm_id), K(ret));
+    // it's necessary to end full link trace resource after trans/resp finished
+    if (OB_SUCC(ret)) {
+      if (OB_FAIL(handle_resp_for_end_flt_trace(ObMysqlTransact::TRANSACTION_COMPLETE
+                                                == trans_state_.current_.state_))) {
+        LOG_WARN("fail to handle resp for end flt trace", K(ret));
+      } else {
+        cmd_size_stats_.reset();
+        if (OB_UNLIKELY(get_global_performance_params().enable_trace_)) {
+          cmd_time_stats_.reset();
+        }
+        if (ObMysqlTransact::is_in_trans(trans_state_) && client_session_->is_trans_internal_routing()) {
+          trans_state_.server_info_.reset();
+          trans_state_.pll_info_.reset();
+          trans_state_.current_.attempts_ = 1;
+          trans_state_.reset_congestion_entry();
+        }
+        trans_state_.reset();
+        // reset ps info
+        if (NULL != server_session_) {
+          server_session_->get_session_info().reset_server_ps_id();
+        }
+        if (NULL != client_session_) {
+          client_session_->get_session_info().reset_recv_client_ps_id();
+          client_session_->get_session_info().reset_client_ps_id();
+          client_session_->get_session_info().reset_ps_entry();
+          client_session_->get_session_info().reset_client_cursor_id();
+        }
+
+        // wait new client request
+        if (OB_FAIL(setup_client_request_read())) {
+          LOG_WARN("failed to setup_client_request_read", K_(sm_id), K(ret));
+        }
       }
     }
   }
+  
   return ret;
 }
 
@@ -8500,14 +8955,14 @@ bool ObMysqlSM::need_close_last_used_ss()
   if (OB_LIKELY(NULL != client_session_)
       && NULL != (last_ss = client_session_->get_server_session())
       && client_session_->get_session_info().is_read_consistency_set()
-      && client_session_->dummy_ldc_.is_readonly_zone_exist()) {
+      && client_session_->dummy_ldc_.is_readonly_zone_exist()
+      && !ObMysqlTransact::is_in_trans(trans_state_)) {
     common::ObAddr tmp_addr;
-    (void)tmp_addr.set_ipv4_addr(last_ss->server_ip_.get_ip4_host_order(), static_cast<int32_t>(last_ss->server_ip_.get_port_host_order()));
+    (void)tmp_addr.set_sockaddr(last_ss->server_ip_.sa_);
     const bool is_last_route_readonly_zone = client_session_->dummy_ldc_.is_readonly_zone(tmp_addr);
     const bool is_weak_read = (common::WEAK == static_cast<ObConsistencyLevel>(client_session_->get_session_info().get_read_consistency()));
     common::ObAddr current_addr;
-    (void)current_addr.set_ipv4_addr(trans_state_.server_info_.addr_.get_ip4_host_order(),
-        static_cast<int32_t>(trans_state_.server_info_.addr_.get_port_host_order()));
+    (void)current_addr.set_sockaddr(trans_state_.server_info_.addr_.sa_);
     const bool is_current_route_readonly_zone = client_session_->dummy_ldc_.is_readonly_zone(current_addr);
     // if readonly zone exist, should choose readonly zone when weak read and close connection which connect to readwrite zone
     if (is_last_route_readonly_zone != is_current_route_readonly_zone) {
@@ -8523,7 +8978,9 @@ bool ObMysqlSM::need_close_last_used_ss()
 bool ObMysqlSM::can_server_session_release()
 {
   bool result = false;
-  bool is_in_trans = (trans_state_.is_hold_start_trans_ || ObMysqlTransact::is_in_trans(trans_state_));
+  bool is_in_trans = (trans_state_.is_hold_start_trans_ 
+                      || trans_state_.is_hold_xa_start_
+                      || ObMysqlTransact::is_in_trans(trans_state_));
   bool is_allowed_state_  = (ObMysqlTransact::STATE_UNDEFINED == trans_state_.current_.state_ ||
     ObMysqlTransact::TRANSACTION_COMPLETE == trans_state_.current_.state_);
   // here should handle some case before release
@@ -8744,7 +9201,8 @@ inline void ObMysqlSM::update_congestion_entry(const int event)
   int64_t client_connect_timeout = 0;
   if ((VC_EVENT_EOS == event
        || VC_EVENT_INACTIVITY_TIMEOUT == event
-       || VC_EVENT_ACTIVE_TIMEOUT == event)
+       || VC_EVENT_ACTIVE_TIMEOUT == event
+       || VC_EVENT_DETECT_SERVER_DEAD)
       && ObMysqlTransact::SM_ACTION_OBSERVER_OPEN == trans_state_.next_action_
       && 0 == milestones_.server_connect_end_
       && OB_LIKELY(NULL != pending_action_)
@@ -9225,8 +9683,9 @@ inline void ObMysqlSM::update_cmd_stats()
   trans_stats_.send_all_session_vars_time_ += cmd_time_stats_.server_send_all_session_variable_time_;
   trans_stats_.send_use_database_time_ += cmd_time_stats_.server_send_use_database_time_;
   trans_stats_.send_session_vars_time_ += cmd_time_stats_.server_send_session_variable_time_;
-  trans_stats_.send_last_insert_id_time_ += cmd_time_stats_.server_send_last_insert_id_time_;
+  trans_stats_.send_session_user_vars_time_ += cmd_time_stats_.server_send_session_user_variable_time_;
   trans_stats_.send_start_trans_time_ += cmd_time_stats_.server_send_start_trans_time_;
+  trans_stats_.send_xa_start_time_ += cmd_time_stats_.server_send_xa_start_time_;
   trans_stats_.build_server_request_time_ += cmd_time_stats_.build_server_request_time_;
 
   int64_t slow_time_threshold = trans_state_.mysql_config_params_->slow_query_time_threshold_;
@@ -9258,9 +9717,13 @@ inline void ObMysqlSM::update_cmd_stats()
     ObString cluster_name;
     ObString logic_tenant_name;
     ObString logic_database_name;
+    ObString trans_internal_routing_state;
+    bool is_in_trans = ObMysqlTransact::is_in_trans(trans_state_);
+    bool is_trans_internal_routing = false;
     if (NULL != client_session_) {
       proxy_sessid = client_session_->get_proxy_sessid();
       cs_id = client_session_->get_cs_id();
+      is_trans_internal_routing = client_session_->is_trans_internal_routing();
       const ObClientSessionInfo &cs_info = client_session_->get_session_info();
       cs_info.get_user_name(user_name);
       cs_info.get_tenant_name(tenant_name);
@@ -9268,6 +9731,7 @@ inline void ObMysqlSM::update_cmd_stats()
       cs_info.get_logic_database_name(logic_database_name);
       cs_info.get_logic_tenant_name(logic_tenant_name);
     }
+    trans_internal_routing_state = is_in_trans ? (is_trans_internal_routing ? "trans internal routing" : "trans not internal routing") : "not in trans";
     get_server_session_ids(server_sessid, ss_id);
 
     if (print_info_log) {
@@ -9291,7 +9755,8 @@ inline void ObMysqlSM::update_cmd_stats()
                K_(sm_id),
                K_(cmd_size_stats),
                K_(cmd_time_stats),
-               "sql", trans_state_.trans_info_.get_print_sql());
+               "sql", trans_state_.trans_info_.get_print_sql(),
+               K(trans_internal_routing_state));
     } else {
       LOG_WARN(log_head,
                "client_ip", trans_state_.client_info_.addr_,
@@ -9312,7 +9777,8 @@ inline void ObMysqlSM::update_cmd_stats()
                K_(sm_id),
                K_(cmd_size_stats),
                K_(cmd_time_stats),
-               "sql", trans_state_.trans_info_.get_print_sql());
+               "sql", trans_state_.trans_info_.get_print_sql(),
+               K(trans_internal_routing_state));
     }
   }
 
@@ -9563,6 +10029,10 @@ inline void ObMysqlSM::set_next_state()
       do_partition_location_lookup();
       break;
 
+    case ObMysqlTransact::SM_ACTION_BINLOG_LOCATION_LOOKUP:
+      do_binlog_location_lookup();
+      break;
+
     case ObMysqlTransact::SM_ACTION_CONGESTION_CONTROL_LOOKUP:
       do_congestion_control_lookup();
       break;
@@ -9621,6 +10091,44 @@ inline void ObMysqlSM::set_next_state()
   }
 }
 
+int ObMysqlSM::state_binlog_location_lookup(int event, void *data)
+{
+  int ret = OB_SUCCESS;
+  STATE_ENTER(ObMysqlSM::state_binlog_location_lookup, event);
+  pending_action_ = NULL;
+  if (OB_UNLIKELY(get_global_performance_params().enable_trace_)) {
+    milestones_.bl_lookup_end_ = get_based_hrtime();
+    cmd_time_stats_.bl_lookup_time_ += milestone_diff(milestones_.bl_lookup_begin_, milestones_.bl_lookup_end_);
+    milestones_.bl_process_begin_ = milestones_.bl_lookup_end_;
+  }
+
+  if (OB_UNLIKELY(TABLE_ENTRY_EVENT_LOOKUP_DONE != event) || OB_ISNULL(data)) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_ERROR("unexpected event type, it should not happen", K(event), K(data), K(ret));
+  } else {
+    ObMysqlRouteResult *result = reinterpret_cast<ObMysqlRouteResult *>(data);
+    if (OB_UNLIKELY(NULL == result || NULL == result->table_entry_)) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("get binlog entry failed", K(result), K(ret));
+    } else {
+      trans_state_.pll_info_.set_route_info(*result);
+      trans_state_.pll_info_.lookup_success_ = true;
+      call_transact_and_set_next_state(NULL);
+    }
+  }
+
+  if (OB_FAIL(ret)) {
+    trans_state_.inner_errcode_ = ret;
+    // failed, disconnect
+    trans_state_.pll_info_.lookup_success_ = false;
+    trans_state_.current_.state_ = ObMysqlTransact::INTERNAL_ERROR;
+    // call ObMysqlTransact::handle_bl_lookup() to handle fail / success
+    call_transact_and_set_next_state(NULL);
+  }
+
+  return EVENT_DONE;
+}
+
 } // end of namespace proxy
 } // end of namespace obproxy
 } // end of namespace oceanbase
diff --git a/src/obproxy/proxy/mysql/ob_mysql_sm.h b/src/obproxy/proxy/mysql/ob_mysql_sm.h
index 15415c24..ec159024 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_sm.h
+++ b/src/obproxy/proxy/mysql/ob_mysql_sm.h
@@ -33,6 +33,7 @@
 
 #include "utils/ob_proxy_lib.h"
 #include "utils/ob_proxy_monitor_utils.h"
+#include "utils/ob_target_db_server.h"
 #include "iocore/eventsystem/ob_event_system.h"
 #include "proxy/mysqllib/ob_mysql_request_analyzer.h"
 #include "proxy/mysqllib/ob_mysql_compress_analyzer.h"
@@ -157,14 +158,15 @@ class ObMysqlSM : public event::ObContinuation
   int process_shard_ddl_result(ObShardDDLStatus *ddl_status);
   int setup_handle_execute_plan();
   int state_handle_execute_plan(int event, void *data);
-  int process_executor_result(engine::ObProxyResultResp *result_resp);
-  
+  int process_executor_result(event::ObIOBufferReader *resp_reader);
+
   int handle_shard_request(bool &need_response_for_stmt, bool &need_wait_callback);
 
   int check_user_identity(const ObString &user_name, const ObString &tenant_name, const ObString &cluster_name);
   int save_user_login_info(ObClientSessionInfo &session_info, ObHSRResult &hsr_result);
   void analyze_mysql_request(ObMysqlAnalyzeStatus &status, const bool is_mysql_req_in_ob20 = false);
   int analyze_login_request(ObRequestAnalyzeCtx &ctx, ObMysqlAnalyzeStatus &status);
+  int analyze_change_user_request();
   int analyze_ps_prepare_request();
   int do_analyze_ps_prepare_request(const ObString &ps_sql);
   int analyze_ps_execute_request(bool is_large_request = false);
@@ -306,6 +308,7 @@ class ObMysqlSM : public event::ObContinuation
   int state_watch_for_client_abort(int event, void *data);
   int state_server_addr_lookup(int event, void *data);
   int state_partition_location_lookup(int event, void *data);
+  int state_binlog_location_lookup(int event, void *data);
   int state_add_to_list(int event, void *data);
   int state_remove_from_list(int event, void *data);
 
@@ -336,6 +339,7 @@ class ObMysqlSM : public event::ObContinuation
   int tunnel_handler_plugin_client(int event, ObMysqlTunnelConsumer &c);
 
   void do_partition_location_lookup();
+  void do_binlog_location_lookup();
   void do_congestion_control_lookup();
   void do_server_addr_lookup();
   int do_observer_open();
@@ -348,6 +352,7 @@ class ObMysqlSM : public event::ObContinuation
   int do_internal_request_for_sharding_show_db(event::ObMIOBuffer *buf);
   int do_internal_request_for_sharding_show_table(event::ObMIOBuffer *buf);
   int do_internal_request_for_sharding_show_table_status(event::ObMIOBuffer *buf);
+  int do_internal_request_for_sharding_show_elastic_id(event::ObMIOBuffer *buf);
   int do_internal_request_for_sharding_show_topology(event::ObMIOBuffer *buf);
   int do_internal_request_for_sharding_select_db(event::ObMIOBuffer *buf);
   int connect_observer();
@@ -438,7 +443,8 @@ class ObMysqlSM : public event::ObContinuation
   int handle_req_to_generate_root_span_by_proxy();
   int handle_for_end_proxy_trace(trace::UUID &trace_id);
   int handle_resp_for_end_flt_trace(bool is_trans_completed);
-
+  void set_enable_ob_protocol_v2(const bool enable_ob_protocol_v2) { enable_ob_protocol_v2_ = enable_ob_protocol_v2; }
+  bool is_enable_ob_protocol_v2() const { return enable_ob_protocol_v2_; }
 private:
   static const int64_t HISTORY_SIZE = 32;
 
@@ -486,7 +492,11 @@ class ObMysqlSM : public event::ObContinuation
   bool enable_cloud_full_username_;
   bool enable_client_ssl_;
   bool enable_server_ssl_;
+  bool enable_read_write_split_;
+  bool enable_transaction_split_;
+  bool enable_ob_protocol_v2_; // limit the scope of changing enable_protocol_v2_ to client session level 
   uint64_t config_version_;
+  ObTargetDbServer *target_db_server_;
 
 private:
   // private functions
@@ -589,16 +599,16 @@ inline void ObMysqlSM::set_internal_cmd_timeout(const ObHRTime timeout)
 inline int64_t ObMysqlSM::get_query_timeout()
 {
   int64_t timeout = HRTIME_NSECONDS(trans_state_.mysql_config_params_->observer_query_timeout_delta_);
-  if (OB_LIKELY(NULL != client_session_) && OB_LIKELY(NULL != server_session_)) {
-    dbconfig::ObShardProp *shard_prop = client_session_->get_session_info().get_shard_prop();
-    if (OB_NOT_NULL(shard_prop)) {
-      timeout = HRTIME_MSECONDS(shard_prop->get_socket_timeout());
+  if (OB_LIKELY(NULL != client_session_)) {
+    int64_t hint_query_timeout = trans_state_.trans_info_.client_request_.get_parse_result().get_hint_query_timeout();
+    // if the request contains query_timeout in hint, we use it
+    if (hint_query_timeout > 0) {
+      // the query timeout in hint is in microseconds(us), so convert it into nanoseconds
+      timeout += HRTIME_USECONDS(hint_query_timeout);
     } else {
-      int64_t hint_query_timeout = trans_state_.trans_info_.client_request_.get_parse_result().get_hint_query_timeout();
-      // if the request contains query_timeout in hint, we use it
-      if (hint_query_timeout > 0) {
-        // the query timeout in hint is in microseconds(us), so convert it into nanoseconds
-        timeout += HRTIME_USECONDS(hint_query_timeout);
+      dbconfig::ObShardProp *shard_prop = client_session_->get_session_info().get_shard_prop();
+      if (OB_NOT_NULL(shard_prop)) {
+        timeout = HRTIME_MSECONDS(shard_prop->get_socket_timeout());
       } else {
         // we do parse in trans now, so we can use query_timeout in anycase
         timeout += client_session_->get_session_info().get_query_timeout();
diff --git a/src/obproxy/proxy/mysql/ob_mysql_sm_time_stat.cpp b/src/obproxy/proxy/mysql/ob_mysql_sm_time_stat.cpp
index f8bd5480..6efcbb0b 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_sm_time_stat.cpp
+++ b/src/obproxy/proxy/mysql/ob_mysql_sm_time_stat.cpp
@@ -37,6 +37,9 @@ int64_t ObCmdTimeStat::to_string(char *buf, const int64_t buf_len) const
   TO_STRING_TIME_US(pl_lookup_time_);
   TO_STRING_TIME_US(pl_process_time_);
 
+  TO_STRING_TIME_US(bl_lookup_time_);
+  TO_STRING_TIME_US(bl_process_time_);
+
 #if OB_DETAILED_SLOW_QUERY
   TO_STRING_TIME_US(debug_assign_time_);
   TO_STRING_TIME_US(debug_consistency_time_);
@@ -58,9 +61,10 @@ int64_t ObCmdTimeStat::to_string(char *buf, const int64_t buf_len) const
   TO_STRING_TIME_US(server_send_saved_login_time_);
   TO_STRING_TIME_US(server_send_use_database_time_);
   TO_STRING_TIME_US(server_send_session_variable_time_);
+  TO_STRING_TIME_US(server_send_session_user_variable_time_);
   TO_STRING_TIME_US(server_send_all_session_variable_time_);
-  TO_STRING_TIME_US(server_send_last_insert_id_time_);
   TO_STRING_TIME_US(server_send_start_trans_time_);
+  TO_STRING_TIME_US(server_send_xa_start_time_);
   TO_STRING_TIME_US(build_server_request_time_);
   TO_STRING_TIME_US(plugin_compress_request_time_);
   TO_STRING_TIME_US(prepare_send_request_to_server_time_);
@@ -100,9 +104,10 @@ int64_t ObTransactionStat::to_string(char *buf, const int64_t buf_len) const
   TO_STRING_TIME_US(send_saved_login_time_);
   TO_STRING_TIME_US(send_use_database_time_);
   TO_STRING_TIME_US(send_session_vars_time_);
+  TO_STRING_TIME_US(send_session_user_vars_time_);
   TO_STRING_TIME_US(send_all_session_vars_time_);
-  TO_STRING_TIME_US(send_last_insert_id_time_);
   TO_STRING_TIME_US(send_start_trans_time_);
+  TO_STRING_TIME_US(send_xa_start_time_);
   TO_STRING_TIME_US(build_server_request_time_);
   TO_STRING_TIME_US(plugin_compress_request_time_);
   TO_STRING_TIME_US(prepare_send_request_to_server_time_);
diff --git a/src/obproxy/proxy/mysql/ob_mysql_sm_time_stat.h b/src/obproxy/proxy/mysql/ob_mysql_sm_time_stat.h
index 04b11120..45d19c9d 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_sm_time_stat.h
+++ b/src/obproxy/proxy/mysql/ob_mysql_sm_time_stat.h
@@ -69,7 +69,8 @@ struct ObTransactionMilestones
   ObTransactionMilestones()
       : last_client_cmd_end_(0), server_connect_begin_(0), server_connect_end_(0),
         server_first_write_begin_(0), pl_lookup_begin_(0), pl_lookup_end_(0),
-        pl_process_begin_(0), pl_process_end_(0), congestion_control_begin_(0),
+        pl_process_begin_(0), pl_process_end_(0), bl_lookup_begin_(0), bl_lookup_end_(0),
+        bl_process_begin_(0), bl_process_end_(0), congestion_control_begin_(0),
         congestion_control_end_(0), congestion_process_begin_(0), congestion_process_end_(0),
         cluster_resource_create_begin_(0), cluster_resource_create_end_(0),
         trans_start_(0), trans_finish_(0), do_observer_open_begin_(0), do_observer_open_end_(0)
@@ -111,6 +112,14 @@ struct ObTransactionMilestones
   ObHRTime pl_process_begin_;
   ObHRTime pl_process_end_;
 
+  // binlog location lookup
+  ObHRTime bl_lookup_begin_;
+  ObHRTime bl_lookup_end_;
+
+  // binlog location process
+  ObHRTime bl_process_begin_;
+  ObHRTime bl_process_end_;
+
   // congestion_control_lookup
   ObHRTime congestion_control_begin_;
   ObHRTime congestion_control_end_;
@@ -154,6 +163,8 @@ struct ObCmdTimeStat
   ObHRTime cluster_resource_create_time_;
   ObHRTime pl_lookup_time_;
   ObHRTime pl_process_time_;
+  ObHRTime bl_lookup_time_;
+  ObHRTime bl_process_time_;
 
 #if OB_DETAILED_SLOW_QUERY
   ObHRTime debug_assign_time_;
@@ -177,9 +188,10 @@ struct ObCmdTimeStat
   ObHRTime server_send_saved_login_time_;
   ObHRTime server_send_use_database_time_;
   ObHRTime server_send_session_variable_time_;
+  ObHRTime server_send_session_user_variable_time_;
   ObHRTime server_send_all_session_variable_time_;
-  ObHRTime server_send_last_insert_id_time_;
   ObHRTime server_send_start_trans_time_;
+  ObHRTime server_send_xa_start_time_;
 
   ObHRTime build_server_request_time_;
   ObHRTime plugin_compress_request_time_;
@@ -241,9 +253,10 @@ struct ObTransactionStat
   ObHRTime send_saved_login_time_;
   ObHRTime send_use_database_time_;
   ObHRTime send_session_vars_time_;
+  ObHRTime send_session_user_vars_time_;
   ObHRTime send_all_session_vars_time_;
-  ObHRTime send_last_insert_id_time_;
   ObHRTime send_start_trans_time_;
+  ObHRTime send_xa_start_time_;
 
   ObHRTime build_server_request_time_;
   ObHRTime plugin_compress_request_time_;
diff --git a/src/obproxy/proxy/mysql/ob_mysql_transact.cpp b/src/obproxy/proxy/mysql/ob_mysql_transact.cpp
index 9988c2bb..c4d134bd 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_transact.cpp
+++ b/src/obproxy/proxy/mysql/ob_mysql_transact.cpp
@@ -38,6 +38,7 @@
 #include "lib/encrypt/ob_encrypted_helper.h"
 #include "proxy/shard/obproxy_shard_utils.h"
 #include "rpc/obmysql/packet/ompk_change_user.h"
+#include "rpc/obmysql/packet/ompk_prepare_execute.h"
 #include "omt/ob_proxy_config_table_processor.h"
 
 using namespace oceanbase::share;
@@ -61,6 +62,62 @@ namespace proxy
 #define MYSQL_INCREMENT_TRANS_STAT(X) update_stat(s, X, 1);
 #define MYSQL_SUM_TIME_STAT(X, cost) update_stat(s, X, cost);
 
+bool ObMysqlTransact::is_in_trans(ObTransState &s)
+{
+  // if a trans is commit, the state will be set to TRANSACTION_COMPLETE,
+  // so if current state is CMD_COMPLETE, it means that we have send a sql successfully and
+  // the trans has not commit, that is to say "in trans"
+  // so far, there are three cases NOT in trans:
+  // 1. handshake response (login packet) need pl lookup
+  // 2. the first sql of one transaction
+  // 3. the second sql of one transaction, if the first sql is 'begin' or 'start transaction'
+
+  // s.current_.state_ may changed to CONNECTION_ALIVE on state_server_response_read, 
+  // here add last_request_in_trans to correct transaction state
+
+  bool is_in_trans = false;
+  if (!s.is_auth_request_ && !s.is_hold_start_trans_ && !s.is_hold_xa_start_) {
+    if (ObMysqlTransact::CMD_COMPLETE == s.current_.state_) {
+      is_in_trans = true;
+    } else if (ObMysqlTransact::TRANSACTION_COMPLETE != s.current_.state_ 
+               && s.sm_->client_session_ != NULL
+               && s.sm_->client_session_->is_last_request_in_trans()) {
+      is_in_trans = true;
+    } 
+  }
+  return is_in_trans;
+}
+
+void ObMysqlTransact::record_trans_state(ObTransState &s, bool is_in_trans)
+{
+  ObMysqlClientSession *client_session = s.sm_->get_client_session();
+  bool last_request_in_trans = client_session->is_last_request_in_trans();
+  if (client_session->is_proxy_enable_trans_internal_routing()) {
+    // set distributed transaction route flag
+    bool server_trans_internal_routing = s.trans_info_.server_response_.get_analyze_result().is_server_trans_internal_routing();
+    bool is_trans_internal_routing = ObMysqlTransact::handle_set_trans_internal_routing(s, server_trans_internal_routing);
+
+    if (!last_request_in_trans && is_in_trans) {
+      client_session->set_trans_coordinator_ss_addr(s.server_info_.addr_.sa_);
+      LOG_DEBUG("start internal routing transaction", "coordinator addr", client_session->get_trans_coordinator_ss_addr());
+      s.trace_log_.set_need_print(is_trans_internal_routing);
+      s.trace_log_.log_it("[trans_start]",
+                          "proxy_sessid", client_session->get_proxy_sessid(),
+                          "coordinator", s.server_info_.addr_,
+                          "sql_cmd", s.trans_info_.sql_cmd_,
+                          "stmt_type", s.trans_info_.client_request_.get_parse_result().get_stmt_type());
+    } else if (last_request_in_trans && !is_in_trans) {
+      // close txn, refresh enable_transaction_internal_routing_
+      LOG_DEBUG("internal routing transaction close", "coordinator addr", client_session->get_trans_coordinator_ss_addr());
+      client_session->get_trans_coordinator_ss_addr().reset();
+    }
+
+    client_session->set_trans_internal_routing(is_trans_internal_routing);
+    LOG_DEBUG("set transaction internal routing flag", "internal routing state", is_trans_internal_routing);
+  }
+  client_session->set_last_request_in_trans(is_in_trans);
+}
+
 void ObMysqlTransact::handle_error_jump(ObTransState &s)
 {
   LOG_WARN("[ObMysqlTransact::handle_error_jump]");
@@ -127,6 +184,31 @@ bool ObMysqlTransact::ObTransState::is_for_update_sql(common::ObString src_sql)
   return bret;
 }
 
+ObConsistencyLevel ObMysqlTransact::ObTransState::get_read_write_consistency_level(ObClientSessionInfo &session_info)
+{
+  ObConsistencyLevel ret_level = common::STRONG;
+  bool enable_weak_read = false;
+  if (ObMysqlTransact::is_in_trans(sm_->trans_state_) 
+      || 0 == session_info.get_cached_variables().get_autocommit()
+      || is_hold_start_trans_
+      || is_hold_xa_start_) {
+    if (ObMysqlTransact::is_in_trans(sm_->trans_state_)
+      || is_hold_start_trans_
+      || is_hold_xa_start_) {
+      enable_weak_read = false;
+    } else {
+      enable_weak_read = sm_->enable_read_write_split_ && sm_->enable_transaction_split_;
+    }
+  } else {
+    enable_weak_read = sm_->enable_read_write_split_;
+  }
+
+  if (enable_weak_read) {
+    ret_level = common::WEAK;
+  }
+  return ret_level;
+}
+
 ObConsistencyLevel ObMysqlTransact::ObTransState::get_trans_consistency_level(
     ObClientSessionInfo &cs_info)
 {
@@ -152,14 +234,20 @@ ObConsistencyLevel ObMysqlTransact::ObTransState::get_trans_consistency_level(
       trans_info_.client_request_.get_parse_result().is_text_ps_select_stmt()) {
       const ObConsistencyLevel sql_hint = trans_info_.client_request_.get_parse_result().get_hint_consistency_level();
       const ObConsistencyLevel sys_var = static_cast<ObConsistencyLevel>(cs_info.get_read_consistency());
+      const ObConsistencyLevel read_write_consistence_level = get_read_write_consistency_level(cs_info);
       if (common::STRONG == sql_hint || common::WEAK == sql_hint) {
         ret_level = sql_hint;
       } else {
-        if (common::STRONG == sys_var || common::WEAK == sys_var) {
+        if (common::WEAK == sys_var) {
           ret_level = sys_var;
         } else {
-          PROXY_LOG(DEBUG, "unsupport ob_read_consistency vars, maybe proxy is old, use strong read "
+          if (common::STRONG == read_write_consistence_level || common::WEAK == read_write_consistence_level) {
+            ret_level = read_write_consistence_level;
+          }
+          if (common::STRONG != sys_var) {
+            PROXY_LOG(DEBUG, "unsupport ob_read_consistency vars, maybe proxy is old, use strong read "
                     "instead", "sys_var", get_consistency_level_str(sys_var));
+          }
         }
       }
       if (common::WEAK == ret_level) {
@@ -296,10 +384,8 @@ void ObMysqlTransact::acquire_cached_server_session(ObTransState &s)
   } else if (get_global_proxy_config().enable_cached_server
              && !s.sm_->client_session_->is_proxy_mysql_client_
              && NULL != last_session && OB_LIKELY(!s.mysql_config_params_->is_random_routing_mode())) {
-    const int32_t ip = ops_ip4_addr_host_order(last_session->get_netvc()->get_remote_addr());
-    const int32_t port = static_cast<int32_t>(ops_ip_port_host_order(last_session->get_netvc()->get_remote_addr()));
     ObAddr last_addr;
-    last_addr.set_ipv4_addr(ip, port);
+    last_addr.set_sockaddr(last_session->get_netvc()->get_remote_addr());
 #if OB_DETAILED_SLOW_QUERY
     ObHRTime t1 = common::get_hrtime_internal();
 #endif
@@ -367,8 +453,13 @@ bool ObMysqlTransact::can_direct_ok_for_login(ObTransState &s)
 {
   bool bret = false;
   ObClientSessionInfo &cs_info = s.sm_->client_session_->get_session_info();
-  if (!(obmysql::OB_MYSQL_COM_LOGIN == s.trans_info_.sql_cmd_ && s.is_auth_request_ && s.sm_->client_session_->is_session_pool_client())) {
-    // should only session_pool_client and LOGIN for auth
+  if (!(obmysql::OB_MYSQL_COM_LOGIN == s.trans_info_.sql_cmd_ && s.is_auth_request_)) {
+    // should only LOGIN for auth
+  } else if (s.sm_->client_session_->can_direct_send_request_) {
+    //scan all return ok
+    bret = true;
+  } else if (!s.sm_->client_session_->is_session_pool_client()) {
+    // should only session_pool_client
   } else if (cs_info.is_sharding_user()) {
     bret = true;
   } else if (!s.sm_->client_session_->is_proxy_mysql_client_ && get_global_proxy_config().enable_no_sharding_skip_real_conn) {
@@ -497,7 +588,7 @@ void ObMysqlTransact::handle_mysql_request(ObTransState &s)
   int ret = OB_SUCCESS;
   sockaddr sa;
   memset(&sa, 0, sizeof(sa));
-  bool need_pl_lookup = ObMysqlTransact::need_pl_lookup(s);
+  bool need_pl_lookup = (ObMysqlTransact::need_pl_lookup(s) == NEED_PL_LOOKUP);
   ObMysqlServerSession *last_session = s.sm_->client_session_->get_server_session();
   if (need_pl_lookup) {
     ObMysqlServerSession *svr_session = NULL;
@@ -567,32 +658,59 @@ void ObMysqlTransact::handle_ps_close_reset(ObTransState &s)
   int ret = OB_SUCCESS;
   ObMysqlClientSession *client_session = s.sm_->get_client_session();
 
-  ObPsIdAddrs::ADDR_HASH_SET &remove_addrs = client_session->get_session_info().get_request_send_addrs();
+  ObIArray<ObIpEndpoint> &remove_addrs = client_session->get_session_info().get_request_send_addrs();
   // At the end of each request, server_entry_ and server_session_ will be placed,
   // including the internal jump of the close command multiple times.
   if (!client_session->is_first_handle_request()) {
     s.sm_->release_server_session();
     // If it is not the first time to come in, it will also be judged according to the transaction status of the first time.
-    s.need_pl_lookup_ = s.need_pl_lookup_ && !client_session->is_in_trans_for_close_request();
+    bool need_pl_lookup = s.is_need_pl_lookup() && !client_session->is_in_trans_for_close_request();
+    // sync pl_lookup_state_
+    if (!need_pl_lookup) {
+      if (client_session->is_proxy_enable_trans_internal_routing()) {
+        s.pl_lookup_state_ = USE_COORDINATOR_SESSION;
+      } else {
+        s.pl_lookup_state_ = USE_LAST_SERVER_SESSION;
+      }
+    }
   } else {
     // The first time you come in, record the previous transaction status
     client_session->set_in_trans_for_close_request(is_in_trans(s));
 
     remove_addrs.reuse();
+    bool found = false;
     uint32_t client_ps_id = client_session->get_session_info().get_client_ps_id();
     // If greater than 1 << 31L, it means cursor_id; otherwise, it is ps_id
     if (client_ps_id >= (CURSOR_ID_START)) {
       ObCursorIdAddr *cursor_id_addr = client_session->get_session_info().get_cursor_id_addr(client_ps_id);
       if (NULL != cursor_id_addr) {
-        remove_addrs.set_refactored(cursor_id_addr->get_addr());
+        for (int64_t i = 0; !found && i< remove_addrs.count(); i++) {
+          if (remove_addrs.at(i) == cursor_id_addr->get_addr()) {
+            found = true;
+          }
+        }
+        if (!found) {
+          if (OB_FAIL(remove_addrs.push_back(cursor_id_addr->get_addr()))) {
+            LOG_WARN("fail to push back addr", K(ret));
+          }
+        }
       }
     } else {
       ObPsIdAddrs *ps_id_addrs = client_session->get_session_info().get_ps_id_addrs(client_ps_id);
-      if (NULL != ps_id_addrs && 0 != ps_id_addrs->get_addrs().size()) {
-        ObPsIdAddrs::ADDR_HASH_SET::iterator iter = ps_id_addrs->get_addrs().begin();
-        ObPsIdAddrs::ADDR_HASH_SET::iterator iter_end = ps_id_addrs->get_addrs().end();
-        for (; iter != iter_end; iter++) {
-          remove_addrs.set_refactored(iter->first);
+      if (NULL != ps_id_addrs && 0 != ps_id_addrs->get_addrs().count()) {
+        ObIArray<ObIpEndpoint> &array = ps_id_addrs->get_addrs();
+        for (int64_t i = 0; i < array.count(); i++) {
+          found = false;
+          for (int64_t j = 0; !found && j < remove_addrs.count(); j++) {
+            if (remove_addrs.at(j) == array.at(i)) {
+              found = true;
+            }
+          }
+          if (!found) {
+            if (OB_FAIL(remove_addrs.push_back(array.at(i)))) {
+              LOG_WARN("fail to push back addr", K(ret));
+            }
+          }
         }
       }
     }
@@ -605,7 +723,7 @@ void ObMysqlTransact::handle_ps_close_reset(ObTransState &s)
    *  1. last_session does not exist.
    *  2. last_bound_session is not null.
    */
-  if (!s.need_pl_lookup_ && client_session->is_first_handle_request()
+  if (!s.is_need_pl_lookup() && client_session->is_first_handle_request()
       && (NULL == last_session || NULL != last_bound_session)) {
     LOG_ERROR("[ObMysqlTransact::handle request] something is wrong, we have to disconnect",
         "is_first_handle_close_request_", client_session->is_first_handle_request(),
@@ -616,35 +734,32 @@ void ObMysqlTransact::handle_ps_close_reset(ObTransState &s)
     bool is_need_send_to_bound_ss = false;
     ObIpEndpoint addr;
 
-    if (0 != remove_addrs.size()) {
+    if (0 != remove_addrs.count()) {
       is_need_send_cmd = true;
       /* If no routing is required, and it is the first time to come in
        * Then check if there is any need to send to bound_ss, if so, send it first,
        * otherwise migrate the connection, and then migrate back
        */
-      if (!s.need_pl_lookup_
+      if (!s.is_need_pl_lookup()
           && client_session->is_first_handle_request()) {
-        ObPsIdAddrs::ADDR_HASH_SET::iterator iter = remove_addrs.begin();
-        ObPsIdAddrs::ADDR_HASH_SET::iterator iter_end = remove_addrs.end();
-
-        for (; iter != iter_end; iter++) {
-          if (iter->first == ObIpEndpoint(last_session->get_netvc()->get_remote_addr())) {
+        for (int64_t i = 0; i < remove_addrs.count(); i++) {
+          if (remove_addrs.at(i) == ObIpEndpoint(last_session->get_netvc()->get_remote_addr())) {
             is_need_send_to_bound_ss = true;
-            addr = iter->first;
+            addr = remove_addrs.at(i);
             break;
           }
         }
       }
 
       if (!is_need_send_to_bound_ss) {
-        addr = remove_addrs.begin()->first;
+        addr = remove_addrs.at(0);
       }
     }
 
     if (is_need_send_cmd) {
       // If no routing is required, and there is no last server session in the server to be sent, migrate
       ObMysqlServerSession *last_bound_session = client_session->get_last_bound_server_session();
-      if (!s.need_pl_lookup_
+      if (!s.is_need_pl_lookup()
           && !is_need_send_to_bound_ss
           && NULL == last_bound_session) {
         client_session->attach_server_session(NULL);
@@ -660,6 +775,7 @@ void ObMysqlTransact::handle_ps_close_reset(ObTransState &s)
         start_access_control(s);
       }
     } else {
+      LOG_DEBUG("handle_ps_close_reset don't need send cmd");
       // This indicates that session migration has occurred and needs to be migrated back
       if (client_session->is_need_return_last_bound_ss()) {
         if (NULL != last_bound_session) {
@@ -693,12 +809,16 @@ void ObMysqlTransact::handle_oceanbase_request(ObTransState &s)
   int ret = OB_SUCCESS;
   ObClientSessionInfo &cs_info = get_client_session_info(s);
   ObProxyMysqlRequest &client_request = s.trans_info_.client_request_;
-  if (OB_LIKELY(cs_info.is_allow_use_last_session())) {
-    s.need_pl_lookup_ = need_pl_lookup(s);
-  } else {
-    s.need_pl_lookup_ = true;
+  ObPLLookupState state = need_pl_lookup(s);
+  // if target db server set
+  bool hint_target_db = OB_NOT_NULL(client_request.get_parse_result().get_target_db_server())  
+                               && !client_request.get_parse_result().get_target_db_server()->is_empty();
+  bool conf_target_db = OB_NOT_NULL(s.sm_->target_db_server_) 
+                                 && !s.sm_->target_db_server_->is_empty();
+  s.pl_lookup_state_ = state;
+  if (OB_UNLIKELY(!cs_info.is_allow_use_last_session())) {
+    s.pl_lookup_state_ = NEED_PL_LOOKUP;
   }
-
   // generate span before each request
   if (s.sm_->get_client_session()->is_first_handle_request()) {
     if (OB_FAIL(s.sm_->handle_req_for_begin_proxy_root_span())) {
@@ -707,18 +827,25 @@ void ObMysqlTransact::handle_oceanbase_request(ObTransState &s)
   }
   
   obmysql::ObMySQLCmd cmd = s.trans_info_.sql_cmd_;
-
-  if (OB_UNLIKELY(cs_info.is_sharding_user())
-       && OB_FAIL(ObProxyShardUtils::update_sys_read_consistency_if_need(cs_info))) {
+  if (is_in_trans(s) 
+      && s.sm_->get_client_session()->is_proxy_enable_trans_internal_routing()
+      && OB_UNLIKELY(!s.sm_->get_client_session()->get_trans_coordinator_ss_addr().is_valid())) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("coordinator session addr is invalid, we have to disconnect", K(ret));
+    TRANSACT_RETURN(SM_ACTION_SEND_ERROR_NOOP, NULL); // disconnect
+  } else if (OB_UNLIKELY(cs_info.is_sharding_user())
+             && OB_FAIL(ObProxyShardUtils::update_sys_read_consistency_if_need(cs_info))) {
     LOG_WARN("fail to update_sys_read_consistency_if_need", K(ret));
     TRANSACT_RETURN(SM_ACTION_SEND_ERROR_NOOP, NULL); // disconnect
+  } else if (s.sm_->get_client_session()->get_session_info().get_priv_info().user_name_ == ObProxyTableInfo::DETECT_USERNAME_USER && s.server_info_.addr_.is_valid()) {
+    lookup_skip_open_server(s);
   } else if (OB_UNLIKELY(need_server_session_lookup(s))) {
     TRANSACT_RETURN(SM_ACTION_SERVER_ADDR_LOOKUP, handle_server_addr_lookup);
   } else if (OB_UNLIKELY(obmysql::OB_MYSQL_COM_STMT_CLOSE == cmd || obmysql::OB_MYSQL_COM_STMT_RESET == cmd)) {
     handle_ps_close_reset(s);
   } else if (client_request.get_parse_result().is_text_ps_drop_stmt()) {
     handle_ps_close_reset(s);
-  } else if (OB_LIKELY(s.need_pl_lookup_)) {
+  } else if (OB_LIKELY(s.is_need_pl_lookup())) {
     // if need pl lookup, we should extract pl info first
     if (OB_FAIL(extract_partition_info(s))) {
       LOG_WARN("fail to extract partition info", K(ret));
@@ -780,26 +907,80 @@ void ObMysqlTransact::handle_oceanbase_request(ObTransState &s)
           LOG_DEBUG("succ to set target addr for send piece/prepare execute/send long data", "address",
                     s.server_info_.addr_, KPC(info));
         }
-      } else if ((s.mysql_config_params_->is_mock_routing_mode() && !s.sm_->client_session_->is_proxy_mysql_client_)
-                 || s.mysql_config_params_->is_mysql_routing_mode()) {
-        if (OB_FAIL(s.mysql_config_params_->get_one_test_server_addr(s.server_info_.addr_))) {
-          LOG_INFO("mysql or mock mode, but test server addr in not set, do normal pl lookup", K(ret));
-          if (NULL == s.sm_->client_session_->dummy_entry_) {
-            s.sm_->client_session_->is_need_update_dummy_entry_ = true;
-          }
-          ret = OB_SUCCESS;
-        } else {
-          s.sm_->client_session_->test_server_addr_ = s.server_info_.addr_;
-          s.pll_info_.lookup_success_ = true;
-          LOG_DEBUG("mysql mode, test server is valid, just use it and skip pl lookup",
+      } else { /* do nothing */}
+
+      // Specified server addr
+      // 1. target_db_server (comment & multi levle config)
+      // 2. test_server_addr & server_routing_mode (deprecated global config) 
+  
+      // target db server (sql comment & multi level config)
+      if (OB_SUCC(ret) && !s.pll_info_.lookup_success_) {
+        // Use target_db_server
+        // exsit in sql comment parsed result
+        if (hint_target_db) {
+          if (OB_FAIL(client_request.get_parse_result().get_target_db_server()->get(s.server_info_.addr_))) {
+            LOG_WARN("fail to get target db server from sql comment", K(ret));
+            TRANSACT_RETURN(SM_ACTION_SEND_ERROR_NOOP, NULL);
+          } else {
+            // in case of dummy entry is NULL
+            if (NULL == s.sm_->client_session_->dummy_entry_) {
+              s.sm_->client_session_->is_need_update_dummy_entry_ = true;
+            }
+            s.pll_info_.lookup_success_ = true;
+            LOG_DEBUG("succ to get target db server from sql comment",
                     "address", s.server_info_.addr_);
+          }
+        // exist in multi level config target_db_server
+        } else if (conf_target_db) {
+          s.sm_->target_db_server_->reuse();
+          if (OB_FAIL(s.sm_->target_db_server_->get(s.server_info_.addr_))) {
+            LOG_WARN("fail to get target db server from multi level config", K(ret));
+            TRANSACT_RETURN(SM_ACTION_SEND_ERROR_NOOP, NULL);
+          } else {
+            // in case of dummy entry is NULL
+            if (NULL == s.sm_->client_session_->dummy_entry_) {
+              s.sm_->client_session_->is_need_update_dummy_entry_ = true;
+            }
+            s.pll_info_.lookup_success_ = true;
+            LOG_DEBUG("succ to get target db server from multi level config",
+                      "address", s.server_info_.addr_);
+          }
+        } else { /* do nothing */}
+      } else if (OB_SUCC(ret)) {
+        if ((hint_target_db && !client_request.get_parse_result().get_target_db_server()->contains(s.server_info_.addr_)) ||
+            (!hint_target_db && conf_target_db && !s.sm_->target_db_server_->contains(s.server_info_.addr_))) {
+          ret = OB_OP_NOT_ALLOW;
+          LOG_WARN("Not allow to route to", "choosen server", s.server_info_.addr_, K(ret));
+          TRANSACT_RETURN(SM_ACTION_SEND_ERROR_NOOP, NULL);
         }
-      } else if (OB_UNLIKELY(!s.mysql_config_params_->is_random_routing_mode()
+      }
+      // deprecated global config
+      if (OB_SUCC(ret) && !s.pll_info_.lookup_success_) {
+        if ((s.mysql_config_params_->is_mock_routing_mode() && !s.sm_->client_session_->is_proxy_mysql_client_)
+                   || s.mysql_config_params_->is_mysql_routing_mode()) {
+          if (OB_FAIL(s.mysql_config_params_->get_one_test_server_addr(s.server_info_.addr_))) {
+            LOG_INFO("mysql or mock mode, but test server addr in not set, do normal pl lookup", K(ret));
+            if (NULL == s.sm_->client_session_->dummy_entry_) {
+              s.sm_->client_session_->is_need_update_dummy_entry_ = true;
+            }
+            ret = OB_SUCCESS;
+          } else {
+            s.sm_->client_session_->test_server_addr_ = s.server_info_.addr_;
+            s.pll_info_.lookup_success_ = true;
+            LOG_DEBUG("mysql mode, test server is valid, just use it and skip pl lookup",
+                      "address", s.server_info_.addr_);
+          }
+        } else { /* do nothing */}
+      }
+
+      if (OB_SUCC(ret) && !s.pll_info_.lookup_success_) {
+        if (OB_UNLIKELY(!s.mysql_config_params_->is_random_routing_mode() 
                              && !s.api_server_addr_set_
-                             && s.pll_info_.te_name_.is_all_dummy_table()
+                             && s.pll_info_.te_name_.is_all_dummy_table() 
                              && cs_info.is_allow_use_last_session())) {
-        acquire_cached_server_session(s);
-      } // end of !is_in_test_mode
+          acquire_cached_server_session(s);
+        }
+      }
 
       if (OB_SUCC(ret)) {
         TRANSACT_RETURN(SM_ACTION_PARTITION_LOCATION_LOOKUP, handle_pl_lookup);
@@ -807,11 +988,30 @@ void ObMysqlTransact::handle_oceanbase_request(ObTransState &s)
     }
   } else {
     // !need_pl_lookup
-    LOG_DEBUG("[ObMysqlTransact::handle request] force to use last server session");
-    ObMysqlServerSession *last_session = s.sm_->client_session_->get_server_session();
+    LOG_DEBUG("[ObMysqlTransact::handle request] force to use last server session/coordinator server session", K(get_pl_lookup_state_string(s.pl_lookup_state_)));
     ObMysqlClientSession *client_session = s.sm_->get_client_session();
+    ObMysqlServerSession *last_session = client_session->get_server_session();
+    sockaddr target_addr;
+
+    if (s.pl_lookup_state_ == USE_COORDINATOR_SESSION) {
+      LOG_DEBUG("use coordinator session");
+      target_addr = client_session->get_trans_coordinator_ss_addr().sa_;
+    } else if (s.pl_lookup_state_ == USE_LAST_SERVER_SESSION) {
+      LOG_DEBUG("use last server session");
+      if (OB_UNLIKELY(NULL == last_session )) {
+        TRANSACT_RETURN(SM_ACTION_SEND_ERROR_NOOP, NULL);
+        ret = OB_ERR_UNEXPECTED;
+        LOG_WARN("[ObMysqlTransact::handle request] last server session is invalid, we have to disconnect", K(ret));
+      } else {
+        target_addr = last_session->get_netvc()->get_remote_addr();
+      }
+    } else {
+      TRANSACT_RETURN(SM_ACTION_SEND_ERROR_NOOP, NULL);
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("[ObMysqlTransact::handle request] unexpected pl lookup state, we have to disconnect", K(s.pl_lookup_state_), K(ret));
+    }
 
-    if (OB_LIKELY(NULL != last_session)) {
+    if (OB_SUCC(ret)) {
       if (obmysql::OB_MYSQL_COM_STMT_FETCH == cmd) {
         ObCursorIdAddr *cursor_id_addr = NULL;
         if (OB_FAIL(cs_info.get_cursor_id_addr(cursor_id_addr))) {
@@ -822,11 +1022,16 @@ void ObMysqlTransact::handle_oceanbase_request(ObTransState &s)
             TRANSACT_RETURN(SM_ACTION_SEND_ERROR_NOOP, NULL);
           }
         } else {
-          if (OB_UNLIKELY(cursor_id_addr->get_addr() != last_session->get_netvc()->get_remote_addr())) {
-            client_session->attach_server_session(NULL);
-            last_session->do_io_read(client_session, 0, NULL);
-            client_session->set_last_bound_server_session(last_session);
-            client_session->set_need_return_last_bound_ss(true);
+          if (OB_SUCC(ret) && OB_UNLIKELY(!ops_ip_addr_port_eq(cursor_id_addr->get_addr(), target_addr))) {
+            if (USE_COORDINATOR_SESSION == s.pl_lookup_state_) {
+              // under internal routing transaction, OB_MYSQL_COM_STMT_FETCH may be routed to participant
+              // don't need compare target server
+            } else {
+              client_session->attach_server_session(NULL);
+              last_session->do_io_read(client_session, 0, NULL);
+              client_session->set_last_bound_server_session(last_session);
+              client_session->set_need_return_last_bound_ss(true);
+            }
           }
 
           s.server_info_.set_addr(cursor_id_addr->get_addr());
@@ -841,26 +1046,31 @@ void ObMysqlTransact::handle_oceanbase_request(ObTransState &s)
           } else {
             TRANSACT_RETURN(SM_ACTION_SEND_ERROR_NOOP, NULL);
           }
-        } else if (OB_UNLIKELY(cursor_id_addr->get_addr() != last_session->get_netvc()->get_remote_addr())) {
-          s.mysql_errcode_ = OB_ERR_DISTRIBUTED_NOT_SUPPORTED;
-          s.mysql_errmsg_ = "fetch cursor target server is not the trans server";
-          int tmp_ret = OB_SUCCESS;
-          if (OB_UNLIKELY(OB_SUCCESS != (tmp_ret = build_error_packet(s, client_session)))) {
-            LOG_WARN("fail to build err packet", K(tmp_ret));
+        } else if (OB_UNLIKELY(!ops_ip_addr_port_eq(cursor_id_addr->get_addr(), target_addr))) {
+          if (USE_COORDINATOR_SESSION == s.pl_lookup_state_) {
+            // under internal routing transaction, OB_MYSQL_COM_STMT_GET_PIECE_DATA may be routed to participant
+            // don't need compare target server
+            target_addr = cursor_id_addr->get_addr().sa_;
           } else {
-            LOG_WARN("fetch cursor target server is not the trans server",
-                     "fetch cursor target server", cursor_id_addr->get_addr(),
-                     "trans server", ObIpEndpoint(last_session->get_netvc()->get_remote_addr()));
-          }
+            s.mysql_errcode_ = OB_ERR_DISTRIBUTED_NOT_SUPPORTED;
+            s.mysql_errmsg_ = "fetch cursor target server is not the trans server";
+            int tmp_ret = OB_SUCCESS;
+            if (OB_UNLIKELY(OB_SUCCESS != (tmp_ret = build_error_packet(s, client_session)))) {
+              LOG_WARN("fail to build err packet", K(tmp_ret));
+            } else {
+              LOG_WARN("fetch cursor target server is not the trans server",
+                      "fetch cursor target server", cursor_id_addr->get_addr(),
+                      "trans server", ObIpEndpoint(target_addr));
+            }
 
-          ret = OB_ERR_DISTRIBUTED_NOT_SUPPORTED;
-          s.inner_errcode_ = ret;
-          s.current_.state_ = ObMysqlTransact::INTERNAL_ERROR;
-          TRANSACT_RETURN(SM_ACTION_INTERNAL_NOOP, NULL);
+            ret = OB_ERR_DISTRIBUTED_NOT_SUPPORTED;
+            s.inner_errcode_ = ret;
+            s.current_.state_ = ObMysqlTransact::INTERNAL_ERROR;
+            TRANSACT_RETURN(SM_ACTION_INTERNAL_NOOP, NULL);
+          }
         }
-
         if (OB_SUCC(ret)) {
-          s.server_info_.set_addr(last_session->get_netvc()->get_remote_addr());
+          s.server_info_.set_addr(target_addr);
           s.pll_info_.lookup_success_ = true;
         }
       } else if (obmysql::OB_MYSQL_COM_STMT_SEND_PIECE_DATA == cmd
@@ -881,7 +1091,7 @@ void ObMysqlTransact::handle_oceanbase_request(ObTransState &s)
           ret = OB_ERR_UNEXPECTED;
           LOG_WARN("info is invalid", K(ret));
           TRANSACT_RETURN(SM_ACTION_SEND_ERROR_NOOP, NULL);
-        } else if (OB_UNLIKELY(info->get_addr() != last_session->get_netvc()->get_remote_addr())) {
+        } else if (OB_UNLIKELY(!ops_ip_addr_port_eq(info->get_addr(), target_addr))) {
           s.mysql_errcode_ = OB_ERR_DISTRIBUTED_NOT_SUPPORTED;
           s.mysql_errmsg_ = "send piece info target server is not the trans server";
           int tmp_ret = OB_SUCCESS;
@@ -890,7 +1100,7 @@ void ObMysqlTransact::handle_oceanbase_request(ObTransState &s)
           } else {
             LOG_WARN("send piece/long data target server is not the trans server",
                      "target server", info->get_addr(),
-                     "trans server", ObIpEndpoint(last_session->get_netvc()->get_remote_addr()));
+                     "trans server", ObIpEndpoint(target_addr));
           }
 
           ret = OB_ERR_DISTRIBUTED_NOT_SUPPORTED;
@@ -900,22 +1110,29 @@ void ObMysqlTransact::handle_oceanbase_request(ObTransState &s)
         }
 
         if (OB_SUCC(ret)) {
-          s.server_info_.set_addr(last_session->get_netvc()->get_remote_addr());
+          s.server_info_.set_addr(target_addr);
           s.pll_info_.lookup_success_ = true;
         }
       } else {
-        s.server_info_.set_addr(last_session->get_netvc()->get_remote_addr());
+        s.server_info_.set_addr(target_addr);
         s.pll_info_.lookup_success_ = true;
       }
 
       if (OB_SUCC(ret)) {
-        start_access_control(s);
+        // if target db server set, then make sure target db server is the choosen server 
+        if ((hint_target_db && !client_request.get_parse_result().get_target_db_server()->contains(s.server_info_.addr_)) ||
+            (!hint_target_db && conf_target_db && !s.sm_->target_db_server_->contains(s.server_info_.addr_))) {
+          ret = OB_OP_NOT_ALLOW;
+          LOG_WARN("Not allow to route to", "choosen server", s.server_info_.addr_, K(ret));
+          TRANSACT_RETURN(SM_ACTION_SEND_ERROR_NOOP, NULL);
+        } else { 
+          start_access_control(s);
+        }
       }
-    } else {
-      LOG_WARN("[ObMysqlTransact::handle request] last session is NULL, we have to disconnect");
-      TRANSACT_RETURN(SM_ACTION_SEND_ERROR_NOOP, NULL);
     }
   } // end of !s.need_pl_lookup
+
+  LOG_DEBUG("handle oceanbase request, is addr valid:", K(s.server_info_.addr_.is_valid()));
 }
 
 void ObMysqlTransact::handle_fetch_request(ObTransState &s)
@@ -998,6 +1215,8 @@ void ObMysqlTransact::handle_request(ObTransState &s)
     }
     // so it's an internal request
     TRANSACT_RETURN(SM_ACTION_INTERNAL_REQUEST, handle_internal_request);
+  } else if (OB_UNLIKELY(is_binlog_request(s))) {
+    handle_binlog_request(s);
   } else {
     if (OB_UNLIKELY(get_global_performance_params().enable_stat_)) {
       if (obmysql::OB_MYSQL_COM_QUERY == s.trans_info_.sql_cmd_) {
@@ -1049,31 +1268,131 @@ void ObMysqlTransact::handle_request(ObTransState &s)
   }
 }
 
-inline bool ObMysqlTransact::need_use_last_server_session(ObTransState &s)
+inline bool ObMysqlTransact::need_use_coordinator_session(ObTransState &s) {
+  // session in trans internal routing state
+  bool use_coordinator = false;
+  int ret = OB_SUCCESS;
+  ObSqlParseResult &parser_result = s.trans_info_.client_request_.get_parse_result();
+  ObClientSessionInfo &session_info = s.sm_->get_client_session()->get_session_info();
+  if (ObMysqlTransact::is_trans_specified(s)) {
+    if (s.sm_->get_client_session() != NULL
+        && s.sm_->get_client_session()->get_server_session() != NULL
+        && ops_ip_addr_port_eq (s.sm_->get_client_session()->get_trans_coordinator_ss_addr(), 
+                                s.sm_->get_client_session()->get_server_session()->get_netvc()->get_remote_addr())) {
+      LOG_WARN("internal routing transaction specified, coordinator session not equal with last session", K(ret));
+    }
+    use_coordinator = true;
+  } else if (s.trans_info_.request_content_length_ > 0) {
+    // large request, route to coordinator session
+    use_coordinator = true;
+  } else if (s.sm_->get_client_session()->is_trans_internal_routing() 
+      && is_sql_able_to_route_participant_in_trans(parser_result, s.trans_info_.sql_cmd_)) {
+    use_coordinator = false;
+  } else if (s.sm_->get_client_session()->is_trans_internal_routing() && parser_result.is_text_ps_execute_stmt()) {
+    ObTextPsEntry* text_ps_entry = NULL;
+    ObTextPsNameEntry* text_ps_name_entry = session_info.get_text_ps_name_entry();
+    if (OB_ISNULL(text_ps_name_entry)) {
+      use_coordinator = true;
+      ret = OB_ERR_PREPARE_STMT_NOT_FOUND;
+      LOG_WARN("need use coordinator on text ps execute stmt, get text ps name entry failed", K(ret));
+    } else if (OB_ISNULL(text_ps_entry = text_ps_name_entry->text_ps_entry_) || !text_ps_entry->is_valid()) {
+      use_coordinator = true;
+      ret = OB_INVALID_ERROR;
+      LOG_WARN("need use coordinator on text ps execute stmt, get text ps entry failed", K(ret));
+    } else {
+      use_coordinator = !is_sql_able_to_route_participant_in_trans(text_ps_entry->get_base_ps_parse_result(), s.trans_info_.sql_cmd_);
+    }
+  } else {
+    // the rest of sql, use coordinator session
+    use_coordinator = true;
+  }
+  return use_coordinator;
+}
+
+bool ObMysqlTransact::is_sql_able_to_route_participant_in_trans(obutils::ObSqlParseResult& base_sql_parse_result, obmysql::ObMySQLCmd  sql_cmd) {
+  // transaction internal routing rule
+  // (1) route dml with table name to participant
+  // (2) route OB_MYSQL_COM_STMT_EXECUTE or text ps execute with inner sql like (1) to participant
+  // (3) route sql command except OB_MYSQL_COM_QUERY/OB_MYSQL_COM_STMT_PREPARE/OB_MYSQL_COM_STMT_EXECUTE to coordinator
+  // (4) route dual request to coordinator, in case of sql like `select DBMS_XA.XA_START(DBMS_XA_XID(?,?,?), 65536) from dual;` start xa transaction
+  // (5) route multi-stmt to coordinator
+
+  bool able_to_route = false;
+  switch (sql_cmd) {
+    case obmysql::OB_MYSQL_COM_QUERY:
+    case obmysql::OB_MYSQL_COM_STMT_PREPARE:
+    case obmysql::OB_MYSQL_COM_STMT_EXECUTE:
+      able_to_route = true;
+      break;
+    
+    default:
+      able_to_route = false;
+      break;
+  }
+  if (able_to_route) {
+    if (base_sql_parse_result.is_dual_request()) {
+      able_to_route = false;
+    } else {
+      able_to_route = (base_sql_parse_result.is_text_ps_prepare_stmt() 
+                      && base_sql_parse_result.is_text_ps_inner_dml_stmt()
+                      && !base_sql_parse_result.is_text_ps_call_stmt()
+                      && !base_sql_parse_result.is_multi_semicolon_in_stmt()
+                      && base_sql_parse_result.get_table_name_length() > 0)
+                    || (base_sql_parse_result.is_dml_stmt() 
+                        && !base_sql_parse_result.is_multi_stmt()
+                        && !base_sql_parse_result.is_multi_semicolon_in_stmt()
+                        && base_sql_parse_result.get_table_name_length() > 0);
+    }
+  }
+  return able_to_route;
+} 
+
+inline ObMysqlTransact::ObPLLookupState ObMysqlTransact::need_pl_lookup(ObTransState &s)
 {
-  // there are three cases we must force to use last server session
-  // 1. trans has begin, other sql must send to the same server session
-  // 2. a func depend on last execute sql
-  // 3. has already specified transaction characteristics (set transaction xxx), not commit yet,
-  return (is_in_trans(s)
-          || OB_UNLIKELY(NULL != s.sm_->client_session_
-              && !s.sm_->client_session_->is_session_pool_client()
-              && (s.trans_info_.client_request_.get_parse_result().has_dependent_func()
-                || s.sm_->client_session_->get_session_info().is_trans_specified())));
+  ObPLLookupState state = NEED_PL_LOOKUP;
+  bool trans_specified = is_trans_specified(s);
+  bool is_dep_func = has_dependent_func(s);
+  bool in_trans = is_in_trans(s);
+  if (in_trans && s.sm_->get_client_session()->is_proxy_enable_trans_internal_routing()) {
+    if (is_dep_func) {
+      state = USE_LAST_SERVER_SESSION;
+    } else {
+      state = need_use_coordinator_session(s) ? USE_COORDINATOR_SESSION : NEED_PL_LOOKUP;
+    }
+  } else {
+    state =(in_trans || trans_specified || is_dep_func) ? USE_LAST_SERVER_SESSION : NEED_PL_LOOKUP;
+  }
+  // if we don't use last server session/coordinator session, we must do pl lookup
+  LOG_DEBUG("need pl lookup", "state", get_pl_lookup_state_string(state),
+            "sql_cmd", ObProxyParserUtils::get_sql_cmd_name(s.trans_info_.sql_cmd_),
+            "is trans specified", trans_specified,
+            "has dependent func", is_dep_func,
+            "is in trans", in_trans);
+
+  return state;
+}
+
+inline bool ObMysqlTransact::is_trans_specified(ObTransState &s)
+{
+  return OB_UNLIKELY(NULL != s.sm_->client_session_
+                     && !s.sm_->client_session_->is_session_pool_client()
+                     && s.sm_->client_session_->get_session_info().is_trans_specified());
 }
 
-inline bool ObMysqlTransact::need_pl_lookup(ObTransState &s)
+inline bool ObMysqlTransact::has_dependent_func(ObTransState &s)
 {
-  // if we don't use last server session, we must do pl lookup
-  return !need_use_last_server_session(s);
+  return OB_UNLIKELY(NULL != s.sm_->client_session_
+                     && !s.sm_->client_session_->is_session_pool_client()
+                     && (s.trans_info_.client_request_.get_parse_result().has_dependent_func()));
 }
 
 //reroute conditions:
-// 1. Transaction first SQL
+// 1. Transaction first SQL/FREE TRANSACTION ROUTE
 // 2. No reroute has occurred
 // 3. It is not a large request, and the request is less than 4K
 // (because the data in the read_buffer will be consumed again here, and the second routing will be copied from the 4K Buffer)
 // 4. In case of EXECUTE or PREPARE_EXECUTE request, no pieceInfo structure exists
+// 5.Non-designated primary zone/IP routing
 inline bool ObMysqlTransact::is_need_reroute(ObMysqlTransact::ObTransState &s)
 {
   int ret = OB_SUCCESS;
@@ -1082,10 +1401,17 @@ inline bool ObMysqlTransact::is_need_reroute(ObMysqlTransact::ObTransState &s)
   bool is_need_reroute = false;
 
   is_need_reroute = s.mysql_config_params_->enable_reroute_
-                    && !s.is_rerouted_ && s.need_pl_lookup_
-                    && s.is_trans_first_request_
+                    && '\0' == s.mysql_config_params_->proxy_primary_zone_name_[0]
+                    && !s.is_rerouted_ && s.is_need_pl_lookup()
+                    && (s.is_trans_first_request_
+                        || (ObMysqlTransact::is_in_trans(s) 
+                            && s.sm_->client_session_->is_trans_internal_routing()))
                     && !s.trans_info_.client_request_.is_large_request()
-                    && total_request_packet_len == cached_request_packet_len;
+                    && total_request_packet_len == cached_request_packet_len
+                    && (OB_ISNULL(s.trans_info_.client_request_.get_parse_result().get_target_db_server()) 
+                        || s.trans_info_.client_request_.get_parse_result().get_target_db_server()->is_empty())
+                    && (OB_ISNULL(s.sm_->target_db_server_) || s.sm_->target_db_server_->is_empty());
+
 
   if (is_need_reroute
       && (obmysql::OB_MYSQL_COM_STMT_PREPARE_EXECUTE == s.trans_info_.client_request_.get_packet_meta().cmd_
@@ -1159,37 +1485,48 @@ int ObMysqlTransact::extract_partition_info(ObTransState &s)
 
     } else {
       is_table_name_from_parser = true;
-      database_name = parse_result.get_database_name();
-      if (OB_LIKELY(database_name.empty())) {
+      if (OB_LIKELY(parse_result.get_database_name().empty())) {
         if (OB_SUCCESS != cs_info.get_database_name(database_name)) {
           database_name = OB_SYS_DATABASE_NAME;
         }
+        ObProxyParseString tmp_database_name;
+        tmp_database_name.str_ = database_name.ptr();
+        tmp_database_name.end_ptr_ = database_name.ptr() + database_name.length() - 1;
+        tmp_database_name.str_len_ = database_name.length();
+        tmp_database_name.quote_type_ = OBPROXY_QUOTE_T_INVALID;
+        if (OB_FAIL(parse_result.set_db_name(tmp_database_name))) {
+          LOG_WARN("parse result set db name failed", K(ret));
+        }
       } else {
         is_database_name_from_parser = true;
       }
 
-      package_name = parse_result.get_package_name();
-      if (OB_UNLIKELY(!package_name.empty())) {
-        is_package_name_from_parser = true;
-      }
-
-      // if run here, means table name and db name all come from parse result
-      if (OB_UNLIKELY(s.sm_->client_session_->get_session_info().is_oracle_mode())) {
-        if (is_table_name_from_parser && OBPROXY_QUOTE_T_INVALID == parse_result.get_table_name_quote()) {
-          string_to_upper_case(table_name.ptr(), table_name.length());
-        }
-        if (is_database_name_from_parser && OBPROXY_QUOTE_T_INVALID == parse_result.get_database_name_quote()) {
-          string_to_upper_case(database_name.ptr(), database_name.length());
+      if (OB_SUCC(ret)) {
+        database_name = parse_result.get_database_name();
+        package_name = parse_result.get_package_name();
+        if (OB_UNLIKELY(!package_name.empty())) {
+          is_package_name_from_parser = true;
         }
-        if (is_package_name_from_parser && OBPROXY_QUOTE_T_INVALID == parse_result.get_package_name_quote()) {
-          string_to_upper_case(package_name.ptr(), package_name.length());
+
+        // if run here, means table name and db name all come from parse result
+        if (OB_UNLIKELY(s.sm_->client_session_->get_session_info().is_oracle_mode())) {
+          if (is_table_name_from_parser && OBPROXY_QUOTE_T_INVALID == parse_result.get_table_name_quote()) {
+            string_to_upper_case(table_name.ptr(), table_name.length());
+          }
+          if (is_database_name_from_parser && OBPROXY_QUOTE_T_INVALID == parse_result.get_database_name_quote()) {
+            string_to_upper_case(database_name.ptr(), database_name.length());
+          }
+          if (is_package_name_from_parser && OBPROXY_QUOTE_T_INVALID == parse_result.get_package_name_quote()) {
+            string_to_upper_case(package_name.ptr(), package_name.length());
+          }
         }
       }
     }
 
     if (OB_SUCC(ret)) {
       if (IS_CLUSTER_VERSION_LESS_THAN_V4(s.sm_->sm_cluster_resource_->cluster_version_)
-          && tenant_name == OB_SYS_TENANT_NAME && database_name == OB_SYS_DATABASE_NAME) {
+          && tenant_name == OB_SYS_TENANT_NAME && database_name == OB_SYS_DATABASE_NAME
+          && !get_global_proxy_config().enable_qa_mode) {
         table_name = OB_ALL_DUMMY_TNAME;
       }
     }
@@ -1550,6 +1887,12 @@ void ObMysqlTransact::handle_congestion_control_lookup(ObTransState &s)
                      "and will expand its retry interval to avoid other connections use this server",
                      KPC(cgt_entry));
             cgt_entry->set_alive_failed_at(get_hrtime());
+            if (get_global_proxy_config().server_detect_mode != 0) {
+              if (OB_LIKELY(NULL != s.sm_->sm_cluster_resource_)) {
+                s.sm_->sm_cluster_resource_->alive_addr_set_.set_refactored(cgt_entry->server_ip_);
+              }
+              is_in_alive_congested = true;
+            }
           } else {
             is_in_alive_congested = true;
           }
@@ -1656,8 +1999,7 @@ void ObMysqlTransact::check_safe_read_snapshot(ObTransState &s)
   ObSafeSnapshotEntry *entry = NULL;
   const ObProxyPartitionLocation *pl = s.pll_info_.route_.cur_chosen_pl_;
   ObAddr addr;
-  addr.set_ipv4_addr(s.server_info_.addr_.get_ip4_host_order(),
-                     static_cast<int32_t>(s.server_info_.addr_.get_port_host_order()));
+  addr.set_sockaddr(s.server_info_.addr_.sa_);
   if (OB_ISNULL(pl) || pl->is_server_changed()) {
     // get the max snapshot server of all server
     int64_t count = s.sm_->client_session_->dummy_ldc_.count();
@@ -1809,6 +2151,22 @@ void ObMysqlTransact::handle_pl_lookup(ObTransState &s)
                 "addr", s.server_info_.addr_,
                 "attempts", s.current_.attempts_,
                 "sm_id", s.sm_->sm_id_);
+    } else if (OB_UNLIKELY(is_server_addr_set 
+                           && ((OB_NOT_NULL(s.sm_->target_db_server_) && !s.sm_->target_db_server_->is_empty())
+                               || (OB_NOT_NULL(s.trans_info_.client_request_.get_parse_result().get_target_db_server())
+                                   && !s.trans_info_.client_request_.get_parse_result().get_target_db_server()->is_empty())))) {
+      if (OB_NOT_NULL(s.sm_->client_session_->dummy_entry_)
+          && s.sm_->client_session_->dummy_entry_->is_avail_state()
+          && s.sm_->client_session_->dummy_entry_->is_valid()
+          && is_addr_logonly(s.server_info_.addr_, s.sm_->client_session_->dummy_entry_->get_tenant_servers())) {
+        ret = OB_OP_NOT_ALLOW;
+        LOG_WARN("Not allow to route to logonly replica", "choosen server", s.server_info_.addr_, K(ret));
+      }
+      LOG_DEBUG("[ObMysqlTransact::handle_pl_lookup] use target db server and server addr is set, "
+                "use cached session",
+                "addr", s.server_info_.addr_,
+                "attempts", s.current_.attempts_,
+                "sm_id", s.sm_->sm_id_);
     } else {
       const ObProxyReplicaLocation *replica = NULL;
 #if OB_DETAILED_SLOW_QUERY
@@ -1845,7 +2203,7 @@ void ObMysqlTransact::handle_pl_lookup(ObTransState &s)
             const ObProxyReplicaLocation *replica = pl->get_replica(i);
             if (NULL != replica && replica->is_leader()) {
               fill_addr = true;
-              s.server_info_.set_addr(replica->server_.get_ipv4(), static_cast<uint16_t>(replica->server_.get_port()));
+              s.server_info_.set_addr(ops_ip_sa_cast(replica->server_.get_sockaddr()));
               LOG_DEBUG("set addr here", K(s.server_info_.addr_));
               s.pll_info_.route_.cur_chosen_server_.replica_ = replica;
               s.pll_info_.route_.leader_item_.is_used_ = true;
@@ -1870,7 +2228,7 @@ void ObMysqlTransact::handle_pl_lookup(ObTransState &s)
         ObSEArray<ObServerStateSimpleInfo, ObServerStateRefreshCont::DEFAULT_SERVER_COUNT> simple_servers_info(
             ObServerStateRefreshCont::DEFAULT_SERVER_COUNT, *allocator);
         get_region_name_and_server_info(s, simple_servers_info, region_names);
-        ObString proxy_primary_zone_name(s.mysql_config_params_->proxy_primary_zone_name_); 
+        ObString proxy_primary_zone_name(s.mysql_config_params_->proxy_primary_zone_name_);
 
         if (OB_FAIL(s.pll_info_.route_.fill_replicas(
                 consistency_level,
@@ -1927,9 +2285,8 @@ void ObMysqlTransact::handle_pl_lookup(ObTransState &s)
             ret = OB_ERR_UNEXPECTED;
             LOG_WARN("no replica avail", K(replica), K(ret));
           } else {
-            s.server_info_.set_addr(replica->server_.get_ipv4(),
-                                    static_cast<uint16_t>(replica->server_.get_port()));
-            LOG_DEBUG("set addr here", K(s.server_info_.addr_));
+            s.server_info_.set_addr(ops_ip_sa_cast(replica->server_.get_sockaddr()));
+            LOG_DEBUG("get replica by pl lookup, set addr", K(s.server_info_.addr_));
           }
 
           if (found_leader_force_congested) {
@@ -1981,25 +2338,32 @@ void ObMysqlTransact::handle_server_addr_lookup(ObTransState &s)
     // server session lookup failed, response err/ok packet
     LOG_DEBUG("[ObMysqlTransact::handle_server_addr_lookup] server addr lookup "
               "failed, response err/ok packet", "errcode", query_info->errcode_);
+
     ObMIOBuffer *buf = NULL;
+    ObMysqlSM *sm = s.sm_;
+    
     // consume data in client buffer reader
-    if (OB_FAIL(s.sm_->get_client_buffer_reader()->consume_all())) {
+    if (OB_ISNULL(sm)) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("unexpect empty sm", K(ret));
+    } else if (OB_FAIL(sm->get_client_buffer_reader()->consume_all())) {
       LOG_WARN("[ObMysqlTransact::handle_server_addr_lookup] fail to consume client_buffer_reader_", K(ret));
     } else if (OB_FAIL(s.alloc_internal_buffer(MYSQL_BUFFER_SIZE))) {
       LOG_WARN("[ObMysqlTransact::handle_server_addr_lookup] fail to allocate internal miobuffer", K(ret));
     } else {
       buf = s.internal_buffer_;
       uint8_t seq = static_cast<uint8_t>(s.trans_info_.client_request_.get_packet_meta().pkt_seq_ + 1);
-      ObMysqlClientSession *client_session = s.sm_->get_client_session();
+      ObMysqlClientSession *client_session = sm->get_client_session();
+      ObProxyProtocol client_protocol = sm->get_client_session_protocol();
 
       switch (query_info->errcode_) {
         case OB_SUCCESS: {
-          if (OB_ISNULL(s.sm_->client_session_)) {
+          if (OB_ISNULL(client_session)) {
             ret = OB_ERR_UNEXPECTED;
             LOG_WARN("[ObMysqlTransact::handle_server_addr_lookup] client session is NULL, will disconnect", K(ret));
           } else {
             const ObMySQLCapabilityFlags &capability = get_client_session_info(s).get_orig_capability_flags();
-            if (OB_FAIL(ObMysqlPacketUtil::encode_ok_packet(*buf, seq, 0, capability))) {
+            if (ObProxyPacketWriter::write_ok_packet(*buf, *client_session, client_protocol, seq, 0, capability)) {
               LOG_WARN("[ObMysqlTransact::handle_server_addr_lookup] fail to build ok resp "
                        "packet", K(ret));
             }
@@ -2011,8 +2375,8 @@ void ObMysqlTransact::handle_server_addr_lookup(ObTransState &s)
           char *err_msg = NULL;
           if (OB_FAIL(ObProxyPacketWriter::get_user_err_buf(query_info->errcode_, err_msg, query_info->cs_id_))) {
             LOG_WARN("fail to get user err buf", K(ret));
-          } else if (OB_FAIL(ObProxyPacketWriter::write_error_packet(*buf, client_session, seq,
-                                                                     query_info->errcode_, err_msg))) {
+          } else if (OB_FAIL(ObProxyPacketWriter::write_error_packet(*buf, client_session, client_protocol,
+                                                                     seq, query_info->errcode_, err_msg))) {
             LOG_WARN("[ObMysqlTransact::build_error_packet] fail to build not supported err resp", K(ret));
           }
           break;
@@ -2021,8 +2385,8 @@ void ObMysqlTransact::handle_server_addr_lookup(ObTransState &s)
           char *err_msg = NULL;
           if (OB_FAIL(ObProxyPacketWriter::get_user_err_buf(query_info->errcode_, err_msg, query_info->priv_name_))) {
             LOG_WARN("fail to get user err buf", K(ret));
-          } else if (OB_FAIL(ObProxyPacketWriter::write_error_packet(*buf, client_session, seq,
-                                                                     query_info->errcode_, err_msg))) {
+          } else if (OB_FAIL(ObProxyPacketWriter::write_error_packet(*buf, client_session, client_protocol,
+                                                                     seq, query_info->errcode_, err_msg))) {
             LOG_WARN("[ObMysqlTransact::handle_server_addr_lookup] fail to build no privilege err resp packet",
                      K(ret), "priv_name", query_info->priv_name_);
           }
@@ -2032,8 +2396,8 @@ void ObMysqlTransact::handle_server_addr_lookup(ObTransState &s)
           char *err_msg = NULL;
           if (OB_FAIL(ObProxyPacketWriter::get_err_buf(query_info->errcode_, err_msg))) {
             LOG_WARN("fail to get err buf", K(ret));
-          } else if (OB_FAIL(ObProxyPacketWriter::write_error_packet(*buf, client_session, seq,
-                                                                     query_info->errcode_, err_msg))) {
+          } else if (OB_FAIL(ObProxyPacketWriter::write_error_packet(*buf, client_session, client_protocol,
+                                                                     seq, query_info->errcode_, err_msg))) {
             LOG_WARN("[ObMysqlTransact::build_error_packet] fail to build err resp packet", K(ret));
           }
           break;
@@ -2074,7 +2438,7 @@ void ObMysqlTransact::handle_server_addr_lookup(ObTransState &s)
 
 inline void ObMysqlTransact::start_access_control(ObTransState &s)
 {
-  if (s.need_pl_lookup_) {
+  if (s.is_need_pl_lookup()) {
     TRANSACT_RETURN(SM_ACTION_API_OBSERVER_PL, ObMysqlTransact::lookup_skip_open_server);
     s.sm_->set_skip_plugin(true);
   } else {
@@ -2087,26 +2451,6 @@ inline void ObMysqlTransact::lookup_skip_open_server(ObTransState &s)
   TRANSACT_RETURN(SM_ACTION_OBSERVER_OPEN, ObMysqlTransact::handle_response);
 }
 
-inline int ObMysqlTransact::build_user_request(
-    ObTransState &s, ObIOBufferReader *client_buffer_reader,
-    ObIOBufferReader *&reader, int64_t &request_len)
-{
-  int ret = OB_SUCCESS;
-
-  if (s.sm_->client_session_->get_session_info().is_oceanbase_server()) {
-    if (OB_FAIL(build_oceanbase_user_request(s, client_buffer_reader, reader, request_len))) {
-      LOG_WARN("fail to build oceanbase user request", K(ret));
-    }
-  } else {
-    // no need compress, send directly
-    int64_t client_request_len = s.trans_info_.client_request_.get_packet_len();
-    request_len = client_request_len;
-    reader = client_buffer_reader;
-  }
-
-  return ret;
-}
-
 int ObMysqlTransact::rewrite_stmt_id(ObTransState &s, ObIOBufferReader *client_buffer_reader)
 {
   int ret = OB_SUCCESS;
@@ -2172,12 +2516,32 @@ int ObMysqlTransact::rewrite_stmt_id(ObTransState &s, ObIOBufferReader *client_b
   return ret;
 }
 
+inline int ObMysqlTransact::build_user_request(
+    ObTransState &s, ObIOBufferReader *client_buffer_reader,
+    ObIOBufferReader *&reader, int64_t &request_len)
+{
+  int ret = OB_SUCCESS;
+
+  if (s.sm_->client_session_->get_session_info().is_oceanbase_server()) {
+    if (OB_FAIL(build_oceanbase_user_request(s, client_buffer_reader, reader, request_len))) {
+      LOG_WARN("fail to build oceanbase user request", K(ret));
+    }
+  } else {
+    // no need compress, send directly
+    int64_t client_request_len = s.trans_info_.client_request_.get_packet_len();
+    request_len = client_request_len;
+    reader = client_buffer_reader;
+  }
+
+  return ret;
+}
+
 inline int ObMysqlTransact::build_oceanbase_user_request(
     ObTransState &s, ObIOBufferReader *client_buffer_reader,
     ObIOBufferReader *&reader, int64_t &request_len)
 {
   int ret = OB_SUCCESS;
-  ObProxyProtocol ob_proxy_protocol = s.sm_->get_server_session_protocol();
+  ObProxyProtocol server_protocol = s.sm_->get_server_session_protocol();
   int64_t client_request_len = s.trans_info_.client_request_.get_packet_len();
   // obproxy only send one mysql request packet at once;
   // if received multi request packets, we will send it one by one;
@@ -2197,10 +2561,11 @@ inline int ObMysqlTransact::build_oceanbase_user_request(
     } else if (OB_FAIL(rewrite_stmt_id(s, client_buffer_reader))) {
       LOG_WARN("rewrite stmt id failed", K(ret));
     } else {
+      obmysql::ObMySQLCmd req_cmd_type = s.trans_info_.client_request_.get_packet_meta().cmd_;
       ObIOBufferReader *request_buffer_reader = client_buffer_reader;
       ObMIOBuffer *write_buffer = NULL;
-      if (ObProxyProtocol::PROTOCOL_OB20 == ob_proxy_protocol
-          || ObProxyProtocol::PROTOCOL_CHECKSUM == ob_proxy_protocol) { // convert standard mysql protocol to compression protocol
+      if (ObProxyProtocol::PROTOCOL_OB20 == server_protocol
+          || ObProxyProtocol::PROTOCOL_CHECKSUM == server_protocol) { // convert standard mysql protocol to compression protocol
         uint8_t compress_seq = 0;
         if (OB_ISNULL(write_buffer = new_miobuffer(MYSQL_BUFFER_SIZE))) {
           ret = OB_ALLOCATE_MEMORY_FAILED;
@@ -2208,18 +2573,46 @@ inline int ObMysqlTransact::build_oceanbase_user_request(
         } else if (OB_ISNULL(reader = write_buffer->alloc_reader())) {
           ret = OB_ERR_UNEXPECTED;
           LOG_WARN("[ObMysqlTransact::build_user_request] failed to allocate iobuffer reader", K(ret));
-        } else if ((obmysql::OB_MYSQL_COM_STMT_CLOSE == s.trans_info_.client_request_.get_packet_meta().cmd_
-                    || obmysql::OB_MYSQL_COM_STMT_RESET == s.trans_info_.client_request_.get_packet_meta().cmd_
+        } else if ((obmysql::OB_MYSQL_COM_STMT_CLOSE == req_cmd_type
+                    || obmysql::OB_MYSQL_COM_STMT_RESET == req_cmd_type
                     || s.trans_info_.client_request_.get_parse_result().is_text_ps_drop_stmt())
             && OB_ISNULL(request_buffer_reader = client_buffer_reader->clone())) {
           ret = OB_ERR_UNEXPECTED;
           LOG_WARN("[ObMysqlTransact::build_user_request] failed to clone client buffer reader", K(ret));
         } else {
-          if (ObProxyProtocol::PROTOCOL_OB20 == ob_proxy_protocol) {
+          if (ObProxyProtocol::PROTOCOL_OB20 == server_protocol) {
             if (OB_FAIL(build_oceanbase_ob20_user_request(s, *write_buffer, *request_buffer_reader,
                                                           client_request_len, compress_seq))) {
               LOG_WARN("fail to build oceanbase ob20 user request", K(ret), K(client_request_len), K(compress_seq));
-            }
+            } else {
+              // handle tail crc for other cmd type, close will send to every server, do not clear buf here
+              if (obmysql::OB_MYSQL_COM_STMT_CLOSE != req_cmd_type
+                  && obmysql::OB_MYSQL_COM_STMT_RESET != req_cmd_type
+                  && !s.trans_info_.client_request_.get_parse_result().is_text_ps_drop_stmt()) {
+                ObProxyProtocol client_protocol = s.sm_->get_client_session_protocol();
+                if (client_protocol == ObProxyProtocol::PROTOCOL_OB20) {
+                  ObClientSessionInfo &cs_info = s.sm_->get_client_session()->get_session_info();
+                  const bool ob20_req_received_done = cs_info.ob20_request_.ob20_request_received_done_;
+                  const int64_t ob20_req_remain_payload_len = cs_info.ob20_request_.remain_payload_len_;
+                  if (ob20_req_received_done
+                      && ob20_req_remain_payload_len == 0) {
+                    cs_info.ob20_request_.ob20_request_received_done_ = false;
+                    int64_t read_avail = client_buffer_reader->read_avail();
+                    LOG_DEBUG("after build user ob req, handle ob20 tail crc in buffer",
+                              K(ob20_req_received_done), K(ob20_req_remain_payload_len), K(read_avail));
+                    if (read_avail >= OB20_PROTOCOL_TAILER_LENGTH) {
+                      if (OB_FAIL(client_buffer_reader->consume(OB20_PROTOCOL_TAILER_LENGTH))) {
+                        LOG_WARN("fail to consume the last crc buffer in client request buffer", K(ret));
+                      }
+                    } else {
+                      ret = OB_ERR_UNEXPECTED;
+                      LOG_WARN("unexpected enter here, client-proxy use ob2.0, handled mysql packet in payload done,"
+                               " unexpected remain buffer len, expect tail crc 4", K(ret), K(read_avail));
+                    }
+                  }
+                }
+              }
+            } // else
           } else {
             // compress protocol
             const bool use_fast_compress = true;
@@ -2231,8 +2624,8 @@ inline int ObMysqlTransact::build_oceanbase_user_request(
             }
           }
 
-          if (obmysql::OB_MYSQL_COM_STMT_CLOSE == s.trans_info_.client_request_.get_packet_meta().cmd_
-              || obmysql::OB_MYSQL_COM_STMT_RESET == s.trans_info_.client_request_.get_packet_meta().cmd_
+          if (obmysql::OB_MYSQL_COM_STMT_CLOSE == req_cmd_type
+              || obmysql::OB_MYSQL_COM_STMT_RESET == req_cmd_type
               || s.trans_info_.client_request_.get_parse_result().is_text_ps_drop_stmt()) {
             request_buffer_reader->dealloc();
             request_buffer_reader = NULL;
@@ -2241,15 +2634,15 @@ inline int ObMysqlTransact::build_oceanbase_user_request(
           if (OB_SUCC(ret)) {
             s.sm_->get_server_session()->set_compressed_seq(compress_seq);
             request_len = reader->read_avail();
-            LOG_DEBUG("build user compressed request succ", K(ob_proxy_protocol),
+            LOG_DEBUG("build user compressed request succ", K(server_protocol),
                       "origin len", client_request_len, "compress len", request_len, "compress seq", compress_seq);
           }
         }
       } else {
         // no need compress, send directly
         request_len = client_request_len;
-        if (obmysql::OB_MYSQL_COM_STMT_CLOSE == s.trans_info_.client_request_.get_packet_meta().cmd_
-            || obmysql::OB_MYSQL_COM_STMT_RESET == s.trans_info_.client_request_.get_packet_meta().cmd_
+        if (obmysql::OB_MYSQL_COM_STMT_CLOSE == req_cmd_type
+            || obmysql::OB_MYSQL_COM_STMT_RESET == req_cmd_type
             || s.trans_info_.client_request_.get_parse_result().is_text_ps_drop_stmt()) {
           int64_t written_len = 0;
           if (OB_ISNULL(write_buffer = new_miobuffer(MYSQL_BUFFER_SIZE))) {
@@ -2280,7 +2673,7 @@ inline int ObMysqlTransact::build_oceanbase_user_request(
   }
 
   LOG_DEBUG("[ObMysqlTransact::build_user_request] send request to observer",
-            "sm_id", s.sm_->sm_id_, K(ob_proxy_protocol), K(client_request_len),
+            "sm_id", s.sm_->sm_id_, K(server_protocol), K(client_request_len),
             "total_client_request_len", (reader != NULL) ? reader->read_avail() : 0,
             "request len send to server", request_len,
             K(s.trans_info_.request_content_length_),
@@ -2306,11 +2699,13 @@ int ObMysqlTransact::build_oceanbase_ob20_user_request(ObTransState &s, ObMIOBuf
     bool generated_extra_info = false;
     bool is_last_packet = false;
     const bool need_reroute = is_need_reroute(s);
+    const bool is_weak_read = (WEAK == s.sm_->trans_state_.get_trans_consistency_level(s.sm_->get_client_session()->get_session_info()));
     ObSEArray<ObObJKV, 3> extra_info;
     ObSqlString sess_info_value;
-    char client_ip_buf[MAX_IP_BUFFER_LEN] = "0";
-    char server_extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "0";
+    char client_ip_buf[MAX_IP_BUFFER_LEN] = "\0";
+    char server_extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
     ObMysqlServerSession *server_session = s.sm_->get_server_session();
+    ObMysqlClientSession *client_session = s.sm_->get_client_session();
     uint32_t req_id = server_session->get_next_server_request_id();
     
     while (OB_SUCC(ret) && remain_req_len > 0) {
@@ -2335,8 +2730,9 @@ int ObMysqlTransact::build_oceanbase_ob20_user_request(ObTransState &s, ObMIOBuf
 
       if (OB_SUCC(ret)) {
         Ob20ProtocolHeaderParam ob20_head_param(server_session->get_server_sessid(),
-                                                req_id, compress_seq, compress_seq, is_last_packet, need_reroute,
-                                                server_session->get_session_info().is_new_extra_info_supported());
+                                                req_id, compress_seq, compress_seq, is_last_packet, is_weak_read, need_reroute,
+                                                server_session->get_session_info().is_new_extra_info_supported(),
+                                                client_session->is_trans_internal_routing());
         if (OB_FAIL(ObProto20Utils::consume_and_compress_data(&request_buffer_reader, &write_buffer,
                                                               curr_req_len, ob20_head_param, &extra_info))) {
           LOG_WARN("fail to consume and compress ob20 data", K(ret));
@@ -2353,6 +2749,24 @@ int ObMysqlTransact::build_oceanbase_ob20_user_request(ObTransState &s, ObMIOBuf
   return ret;
 }
 
+bool ObMysqlTransact::handle_set_trans_internal_routing(ObMysqlTransact::ObTransState &s, bool server_transaction_routing_flag)
+{
+  // used to set the header flag
+  // if session in a transaction, return the config of enable_internal_transaction_routing in server 
+  // else return the config enable_internal_transaction_routing
+  bool internal_routing_flag = false;
+  if (is_trans_specified(s)) {
+    // trans_spcified, disable trans internal routing
+    internal_routing_flag = false;
+  } else if (!is_in_trans(s)) {
+    // do nothing, return config of enable_internal_transaction
+    internal_routing_flag = s.sm_->get_client_session()->is_proxy_enable_trans_internal_routing();
+  } else {
+    internal_routing_flag = s.sm_->get_client_session()->is_proxy_enable_trans_internal_routing() && server_transaction_routing_flag;
+  }
+  return internal_routing_flag;
+}
+
 inline int ObMysqlTransact::build_normal_login_request(
     ObTransState &s, ObIOBufferReader *&reader, int64_t &request_len)
 {
@@ -2429,6 +2843,9 @@ inline int ObMysqlTransact::build_normal_login_request(
 int ObMysqlTransact::build_server_request(ObTransState &s, ObIOBufferReader *&reader, int64_t &request_len)
 {
   int ret = OB_SUCCESS;
+  LOG_DEBUG("[ObMysqlTransact::build_server_request] checking sending sql",
+            "cur_send_action", ObMysqlTransact::get_send_action_name(s.current_.send_action_), K(s.trans_info_.get_print_sql()), K(is_in_trans(s)),
+            K(s.sm_->get_client_session()->get_cs_id()));
   ObIOBufferReader *client_buffer_reader = NULL;
   BuildFunc build_func = NULL;
   reader = NULL;
@@ -2476,7 +2893,9 @@ int ObMysqlTransact::build_server_request(ObTransState &s, ObIOBufferReader *&re
       }
 
       case SERVER_SEND_SAVED_LOGIN:
-        if (s.sm_->client_session_->get_session_info().is_oceanbase_server()) {
+        if (is_binlog_request(s)) {
+          build_func = ObMysqlRequestBuilder::build_binlog_login_packet;
+        } else if (s.sm_->client_session_->get_session_info().is_oceanbase_server()) {
           // write the buffor using saved login packet directly
           build_func = ObMysqlRequestBuilder::build_saved_login_packet;
         } else {
@@ -2497,14 +2916,18 @@ int ObMysqlTransact::build_server_request(ObTransState &s, ObIOBufferReader *&re
       case SERVER_SEND_SESSION_VARS:
         build_func = ObMysqlRequestBuilder::build_session_vars_sync_packet;
         break;
-
-      case SERVER_SEND_LAST_INSERT_ID:
-        build_func = ObMysqlRequestBuilder::build_last_insert_id_sync_packet;
+      
+      case SERVER_SEND_SESSION_USER_VARS:
+        build_func = ObMysqlRequestBuilder::build_session_user_vars_sync_packet;
         break;
 
       case SERVER_SEND_START_TRANS:
         build_func = ObMysqlRequestBuilder::build_start_trans_request;
         break;
+      
+      case SERVER_SEND_XA_START:
+        build_func = ObMysqlRequestBuilder::build_xa_start_request;
+        break;
 
       case SERVER_SEND_PREPARE:
         build_func = ObMysqlRequestBuilder::build_prepare_request;
@@ -2658,7 +3081,7 @@ inline int ObMysqlTransact::do_handle_prepare_succ(ObTransState &s, uint32_t ser
   ObClientSessionInfo &cs_info = get_client_session_info(s);
   ObServerSessionInfo &ss_info = get_server_session_info(s);
 
-  uint32_t client_ps_id = cs_info.get_client_ps_id();
+  uint32_t client_ps_id = s.is_hold_xa_start_? cs_info.get_xa_start_ps_id() : cs_info.get_client_ps_id();
   ObPsIdPair *ps_id_pair = ss_info.get_ps_id_pair(client_ps_id);
   /* here two case:
    *  if first in:
@@ -2747,7 +3170,7 @@ inline int ObMysqlTransact::do_handle_execute_succ(ObTransState &s)
   ObClientSessionInfo &cs_info = get_client_session_info(s);
   ObServerSessionInfo &ss_info = get_server_session_info(s);
 
-  uint32_t client_ps_id = cs_info.get_client_ps_id();
+  uint32_t client_ps_id = s.is_hold_xa_start_? cs_info.get_xa_start_ps_id() : cs_info.get_client_ps_id();  
   ObPsIdPair *ps_id_pair = ss_info.get_ps_id_pair(client_ps_id);
   ObCursorIdPair *cursor_id_pair = ss_info.get_curosr_id_pair(client_ps_id);
   if (OB_ISNULL(ps_id_pair)) {
@@ -2797,6 +3220,79 @@ inline int ObMysqlTransact::do_handle_execute_succ(ObTransState &s)
   return ret;
 }
 
+inline int ObMysqlTransact::do_handle_prepare_execute_xa_succ(ObIOBufferReader &buf_reader) {
+  int ret = OB_SUCCESS;
+  int64_t offset = 0;
+  int64_t content_len = 0;
+  uint8_t seq = 0;
+  ObMysqlPacketReader pkt_reader;
+  ObNewRow row;
+  ObSMRow sm_row(BINARY, row);
+  OMPKRow row_pkt(sm_row);
+  OMPKPrepareExecute prepare_execute_pkt;
+  int32_t eof_count_before_result_set = 0;
+  // read prepare execute resp
+  if (OB_FAIL(pkt_reader.get_packet(buf_reader, prepare_execute_pkt))) {
+    LOG_WARN("fail to get prepare execute resp of xa start", K(ret));
+  } else if (prepare_execute_pkt.get_column_num() > 0 && FALSE_IT(++eof_count_before_result_set)) {
+  } else if (prepare_execute_pkt.get_param_num() > 0 && FALSE_IT(++eof_count_before_result_set)) {
+  } else {
+    LOG_DEBUG("succ to get eof count of resp of xa start sync", K(eof_count_before_result_set));
+  }
+
+  int32_t eof_count = 0;
+  // num-param * coldef & eof & one row coldef & eof
+   while (OB_SUCC(ret) && eof_count < eof_count_before_result_set) {
+    bool is_eof = false;
+    if (OB_FAIL(pkt_reader.is_eof_packet(buf_reader, offset, is_eof))) {
+      LOG_WARN("fail test eof of resp of xa start sync", K(ret));
+    } else if (OB_FAIL(pkt_reader.get_content_len_and_seq(buf_reader, offset, content_len, seq))) {
+      LOG_WARN("fail to read packet len and seq of resp of xa start sync", K(ret));
+    } else {
+      offset += content_len + MYSQL_NET_HEADER_LENGTH;
+    }
+    if (is_eof) {
+      ++eof_count;
+      LOG_DEBUG("succ to read eof of resp of xa start sync", K(eof_count));
+    }
+  }
+  
+  // read ProtocolBinary::ResultsetRow
+  if (OB_SUCC(ret)) {
+    if (OB_FAIL(pkt_reader.get_packet(buf_reader, offset, row_pkt))) {
+      LOG_WARN("fail to get result set row packet of resp of xa start sync", K(ret));
+    } else {
+      // 0a 00 00 08 00 00 00 00 00 00 00 00 00 00
+      // ^^^^^^^^^^^ header
+      //             ^^ packet header
+      //                ^^ bitmap
+      //                   ^^^^^^^^^^^^^^^^^^^^^^^ long/int(8/4bytes)
+      const char *content_buf = row_pkt.get_cdata();
+      int64_t content_len = row_pkt.get_clen();
+      int8_t pkt_hdr = -1;
+      int8_t bitmap = -1;
+      int32_t xa_result = -1;
+      if (OB_FAIL(ObMysqlPacketUtil::get_int1(content_buf, content_len, pkt_hdr))) {
+        LOG_WARN("fail to get pkt hdr from row packet of resp of xa start sync", K(ret));
+      } else if (OB_FAIL(ObMysqlPacketUtil::get_int1(content_buf, content_len, bitmap))) {
+        LOG_WARN("fail to get bitmap from row packet of resp of xa start sync", K(ret));
+      } else if (OB_UNLIKELY(pkt_hdr != 0x00)) {
+        ret = OB_ERR_UNEXPECTED;
+        LOG_WARN("wrong result set row pkt hdr of resp of xa start sync", K(ret), K(pkt_hdr));
+      } else if (OB_FAIL(ObMysqlPacketUtil::get_int4(content_buf, content_len, xa_result))) {
+        LOG_WARN("fail to get xa result of resp of xa start sync", K(ret));
+      } else if (OB_UNLIKELY(xa_result != 0)) {
+        ret = OB_ERR_UNEXPECTED;
+        LOG_WARN("fail to sync xa start", K(xa_result), K(ret));
+      } else {
+        LOG_DEBUG("succ to sync xa start");
+      }
+    }
+  }
+
+  return ret;
+}
+
 inline void ObMysqlTransact::handle_execute_succ(ObTransState &s)
 {
   int ret = OB_SUCCESS;
@@ -2842,11 +3338,12 @@ inline void ObMysqlTransact::handle_prepare_execute_succ(ObTransState &s)
     } else if (OB_FAIL(do_handle_prepare_succ(s, server_ps_id))) {
       LOG_WARN("fail to do handle prepare succ", K(ret));
     }
-
     if (OB_SUCC(ret) && s.trans_info_.server_response_.get_analyze_result().is_resultset_resp()) {
       if (OB_FAIL(do_handle_execute_succ(s))) {
         LOG_WARN("fail to do handle execute succ", K(ret));
-      }
+      } else if (s.is_hold_xa_start_ && OB_FAIL(do_handle_prepare_execute_xa_succ(*buf_reader))) {
+        LOG_WARN("fail to do handle prepare execute xa succ", K(ret));
+      } else {}
     }
   }
 
@@ -2915,6 +3412,7 @@ int ObMysqlTransact::handle_text_ps_drop_succ(ObTransState &s, bool &is_user_req
   int ret = OB_SUCCESS;
   is_user_request = false;
 
+  // text_ps_drop can not handle session info in trim_ok_packet, handle here
   ObClientSessionInfo &cs_info = get_client_session_info(s);
   ObServerSessionInfo &ss_info = get_server_session_info(s);
   uint32_t ps_id = cs_info.get_client_ps_id();
@@ -2923,8 +3421,14 @@ int ObMysqlTransact::handle_text_ps_drop_succ(ObTransState &s, bool &is_user_req
     LOG_WARN("fail to erase server addr", K(ret));
   } else if (OB_FAIL(ss_info.remove_text_ps_version(ps_id))) {
     LOG_WARN("fail to remove text ps id", K(ret));
+  } else if (OB_FAIL(ObProxySessionInfoHandler::save_changed_sess_info(s.sm_->get_client_session()->get_session_info(),
+                                                                       s.sm_->get_server_session()->get_session_info(),
+                                                                       s.trans_info_.server_response_.get_analyze_result().get_extra_info(),
+                                                                       s.trace_log_,
+                                                                       false))) {
+      LOG_WARN("fail to save changed session info", K(get_send_action_name(s.current_.send_action_)));
+      s.current_.state_ = INTERNAL_ERROR;
   }
-
   return ret;
 }
 
@@ -3060,7 +3564,7 @@ int ObMysqlTransact::handle_reset_connection_request_succ(ObTransState &s)
 int ObMysqlTransact::clear_session_related_source(ObTransState &s)
 {
   int ret = OB_SUCCESS;
-  
+
   ObClientSessionInfo &client_info = get_client_session_info(s);
   ObServerSessionInfo &server_info = get_server_session_info(s);
 
@@ -3086,7 +3590,7 @@ int ObMysqlTransact::clear_session_related_source(ObTransState &s)
     if (OB_NOT_NULL(client_session)) {
       client_session->get_session_manager().purge_keepalives();
     }
-    
+
     LOG_DEBUG("succ to clear session related source");
   }
 
@@ -3103,46 +3607,45 @@ inline int ObMysqlTransact::handle_user_set_request_succ(ObTransState &s)
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("invalid session, client session is NULL");
   } else if (OB_LIKELY(set_info.node_count_ > 0)) {
-
     ObClientSessionInfo &client_info = get_client_session_info(s);
     for (int i = 0; OB_SUCC(ret) && i < set_info.node_count_; i++) {
-      SetVarNode &var_node = set_info.var_nodes_.at(i);
+      SetVarNode* var_node = set_info.var_nodes_.at(i);
       ObObj value;
-      if (SET_VALUE_TYPE_INT == var_node.value_type_) {
-        value.set_int(var_node.int_value_);
-      } else if (SET_VALUE_TYPE_NUMBER == var_node.value_type_) {
-        const char *nptr = var_node.str_value_.buf_;
+      if (SET_VALUE_TYPE_INT == var_node->value_type_) {
+        value.set_int(var_node->int_value_);
+      } else if (SET_VALUE_TYPE_NUMBER == var_node->value_type_) {
+        const char *nptr = var_node->str_value_.ptr();
         char *end_ptr = NULL;
         double double_val = strtod(nptr, &end_ptr);
         if (*nptr != '\0' && *end_ptr == '\0') {
           value.set_double(double_val);
         } else {
-          OBLOG_LOG(WARN, "invalid double value", "str", var_node.str_value_.string_);
-          value.set_varchar(var_node.str_value_.string_);
+          OBLOG_LOG(WARN, "invalid double value", "str", var_node->str_value_);
+          value.set_varchar(var_node->str_value_.config_string_);
         }
       } else {
-        if (0 == var_node.var_name_.string_.case_compare("character_set_results")
-            && 0 == var_node.str_value_.string_.case_compare("NULL")) {
+        if (0 == var_node->var_name_.config_string_.case_compare("character_set_results")
+            && 0 == var_node->str_value_.config_string_.case_compare("NULL")) {
           value.set_varchar(ObString::make_empty_string());
         } else {
-          value.set_varchar(var_node.str_value_.string_);
+          value.set_varchar(var_node->str_value_.config_string_);
         }
       }
 
       // TODO: if not exist, insert; otherwise, cmp and update
-      if (SET_VAR_USER == var_node.var_type_) {
-        if (OB_FAIL(client_info.replace_user_variable(var_node.var_name_.string_,
+      if (SET_VAR_USER == var_node->var_type_) {
+        if (OB_FAIL(client_info.replace_user_variable(var_node->var_name_.config_string_,
                                                       value))) {
-          LOG_WARN("fail to replace user variable", K(var_node), K(ret));
+          LOG_WARN("fail to replace user variable", KPC(var_node), K(ret));
         } else {
-          LOG_DEBUG("succ to update user variables", "key", var_node.var_name_.string_, K(value));
+          LOG_DEBUG("succ to update user variables", "key", var_node->var_name_, K(value));
         }
-      } else if (SET_VAR_SYS == var_node.var_type_) {
-        if (OB_FAIL(client_info.update_common_sys_variable(var_node.var_name_.string_,
+      } else if (SET_VAR_SYS == var_node->var_type_) {
+        if (OB_FAIL(client_info.update_common_sys_variable(var_node->var_name_.config_string_,
                                                            value, true, false))) {
-          LOG_WARN("fail to update common sys variable", K(var_node), K(ret));
+          LOG_WARN("fail to update common sys variable", KPC(var_node), K(ret));
         } else {
-          LOG_DEBUG("succ to update common sys variables", "key", var_node.var_name_.string_, K(value));
+          LOG_DEBUG("succ to update common sys variables", "key", var_node->var_name_.config_string_, K(value));
         }
       }
     }
@@ -3298,15 +3801,21 @@ inline void ObMysqlTransact::handle_use_db_succ(ObTransState &s)
   }
 }
 
-void ObMysqlTransact::handle_error_resp(ObTransState &s)
+void ObMysqlTransact::handle_error_resp(ObTransState &s, bool &is_user_request)
 {
   ObRespAnalyzeResult &resp = s.trans_info_.server_response_.get_analyze_result();
   ObProxyMysqlRequest& client_request = s.trans_info_.client_request_;
-  bool is_user_request = false;
+  is_user_request = false;
   int64_t max_connect_attempts = get_max_connect_attempts(s);
   ObServerStateType pre_state = s.current_.state_;
   s.current_.state_ = RESPONSE_ERROR;
 
+  s.trace_log_.log_it("[get_error]", "code", resp.error_pkt_.get_err_code(), "trace_id", resp.server_trace_id_);
+  if (resp.is_mysql_wrong_arguments_error()
+      || resp.is_trans_free_route_not_supported_error()
+      || resp.is_internal_error()) {
+    LOG_WARN("trace_log", K(s.trace_log_));
+  }
   switch(s.current_.send_action_) {
     case SERVER_SEND_HANDSHAKE:
       if (!s.sm_->client_session_->get_session_info().is_oceanbase_server()) {
@@ -3445,6 +3954,8 @@ void ObMysqlTransact::handle_error_resp(ObTransState &s)
         } else {
           is_user_request = true;
         }
+      } else if (resp.is_trans_free_route_not_supported_error()) {
+        s.current_.error_type_ = TRANS_FREE_ROUTE_NOT_SUPPORTED_ERROR;
       } else if (resp.is_ora_fatal_error()) {
         s.current_.error_type_ = ORA_FATAL_ERROR;
       } else if (resp.is_standby_weak_readonly_error()
@@ -3452,9 +3963,10 @@ void ObMysqlTransact::handle_error_resp(ObTransState &s)
                  && OB_DEFAULT_CLUSTER_ID == s.sm_->sm_cluster_resource_->get_cluster_id()) {
         // if primary switchover, need disconnection when get STANDBY_WEAK_READONLY_ERROR error
         s.current_.error_type_ = STANDBY_WEAK_READONLY_ERROR;
-      } else if (s.is_trans_first_request_
-          && !s.trans_info_.client_request_.is_large_request()
-          && (total_request_packet_len == cached_request_packet_len)) {
+      } else if ((s.is_trans_first_request_ 
+                    || (ObMysqlTransact::is_in_trans(s) && s.sm_->get_client_session()->is_trans_internal_routing()))
+                  && !s.trans_info_.client_request_.is_large_request()
+                  && (total_request_packet_len == cached_request_packet_len)) {
         if (resp.is_reroute_error()) {
           s.current_.error_type_ = REQUEST_REROUTE_ERROR;
         // if all attempts were failed, we should transfer the error pkt to client finally
@@ -3497,7 +4009,7 @@ void ObMysqlTransact::handle_error_resp(ObTransState &s)
     }
     case SERVER_SEND_ALL_SESSION_VARS:
     case SERVER_SEND_SESSION_VARS:
-    case SERVER_SEND_LAST_INSERT_ID:
+    case SERVER_SEND_SESSION_USER_VARS:
       s.current_.error_type_ = RESET_SESSION_VARS_COMMON_ERROR;
       break;
 
@@ -3508,6 +4020,11 @@ void ObMysqlTransact::handle_error_resp(ObTransState &s)
     case SERVER_SEND_START_TRANS:
       s.current_.error_type_ = START_TRANS_COMMON_ERROR;
       break;
+    
+    case SERVER_SEND_XA_START:
+      LOG_DEBUG("[ObMysqlTransact::handle_error_resp] xa start resp error");
+      s.current_.error_type_ = START_XA_START_ERROR;
+      break;
 
     case SERVER_SEND_PREPARE:
       s.current_.error_type_ = SYNC_PREPARE_COMMON_ERROR;
@@ -3595,6 +4112,8 @@ void ObMysqlTransact::handle_error_resp(ObTransState &s)
       }
       s.is_rerouted_ = true;
     }
+  } else if (TRANS_FREE_ROUTE_NOT_SUPPORTED_ERROR == s.current_.error_type_) {
+    s.is_rerouted_ = true;
   }
 
 
@@ -3635,7 +4154,7 @@ void ObMysqlTransact::handle_error_resp(ObTransState &s)
   }
 }
 
-inline void ObMysqlTransact::handle_resultset_resp(ObTransState &s)
+inline void ObMysqlTransact::handle_resultset_resp(ObTransState &s, bool &is_user_request)
 {
   if (OB_UNLIKELY(obmysql::OB_MYSQL_COM_STMT_PREPARE == s.trans_info_.sql_cmd_
                || SERVER_SEND_PREPARE == s.current_.send_action_)) {
@@ -3647,17 +4166,27 @@ inline void ObMysqlTransact::handle_resultset_resp(ObTransState &s)
   }
 
   // consume response of non-user request
+  if (OB_UNLIKELY(SERVER_SEND_XA_START == s.current_.send_action_)) {
+    if (s.sm_->get_client_session()->is_proxy_enable_trans_internal_routing()) {
+      record_trans_state(s, true);
+    }
+    LOG_DEBUG("[ObMysqlTransact::handle_resultset_resp] reset xa start flag s.is_hold_xa_start_");
+    s.is_hold_xa_start_ = false;
+  }
   if (OB_UNLIKELY(SERVER_SEND_REQUEST != s.current_.send_action_)) {
     //LOG_WARN("handle_resultset_resp, not expected");
     consume_response_packet(s);
+    is_user_request = false;
+  } else {
+    is_user_request = true;
   }
 }
 
-inline void ObMysqlTransact::handle_ok_resp(ObTransState &s)
+inline void ObMysqlTransact::handle_ok_resp(ObTransState &s, bool &is_user_request)
 {
   int ret = OB_SUCCESS;
   // in fact, we handle ok, eof, resultset and other responses in this function
-  bool is_user_request = false;
+  is_user_request = false;
 
   if (NULL != s.sm_->client_session_ && NULL != s.sm_->get_server_session()) {
     ObClientSessionInfo &client_info = get_client_session_info(s);
@@ -3677,6 +4206,7 @@ inline void ObMysqlTransact::handle_ok_resp(ObTransState &s)
 
       case SERVER_SEND_ALL_SESSION_VARS:
       case SERVER_SEND_SESSION_VARS:
+      case SERVER_SEND_SESSION_USER_VARS: 
         ObProxySessionInfoHandler::assign_session_vars_version(client_info, server_info);
         // send session var function will send last_insert_id in passing
         ObProxySessionInfoHandler::assign_last_insert_id_version(client_info, server_info);
@@ -3688,12 +4218,9 @@ inline void ObMysqlTransact::handle_ok_resp(ObTransState &s)
         handle_use_db_succ(s);
         break;
 
-      case SERVER_SEND_LAST_INSERT_ID:
-        ObProxySessionInfoHandler::assign_last_insert_id_version(client_info, server_info);
-        break;
-
       case SERVER_SEND_START_TRANS:
         // reset hold start trans flag if receive ok packet
+        LOG_DEBUG("sync session info from the ok packet of the sql `begin`");
         s.is_hold_start_trans_ = false;
         break;
 
@@ -3711,28 +4238,35 @@ inline void ObMysqlTransact::handle_ok_resp(ObTransState &s)
                   K(client_info), K(server_info));
         break;
     }
+
+    // due to server may retrun reroute error in internal routing trans
+    // internal routing trans allow to record transaction state after begin statement
+    if (s.current_.send_action_ == SERVER_SEND_START_TRANS && s.sm_->get_client_session()->is_proxy_enable_trans_internal_routing()) {
+      record_trans_state(s, true);
+    }
   }
 
-  if (obmysql::OB_MYSQL_COM_STMT_SEND_PIECE_DATA == s.trans_info_.sql_cmd_) {
-    ObPieceInfo *info = NULL;
-    ObClientSessionInfo &cs_info = get_client_session_info(s);
-    if (OB_FAIL(cs_info.get_piece_info(info))) {
-      if (OB_HASH_NOT_EXIST == ret) {
-        if (OB_ISNULL(info = op_alloc(ObPieceInfo))) {
-          ret = OB_ALLOCATE_MEMORY_FAILED;
-          PROXY_API_LOG(ERROR, "fail to allocate memory for piece info", K(ret));
-        } else {
-          info->set_ps_id(cs_info.get_client_ps_id());
-          info->set_addr(s.sm_->get_server_session()->get_netvc()->get_remote_addr());
-          if (OB_FAIL(cs_info.add_piece_info(info))) {
-            PROXY_API_LOG(WARN, "fail to add piece info", K(ret));
-            op_free(info);
-            info = NULL;
+  if (OB_SUCC(ret)) {
+    if (obmysql::OB_MYSQL_COM_STMT_SEND_PIECE_DATA == s.trans_info_.sql_cmd_) {
+      ObPieceInfo *info = NULL;
+      ObClientSessionInfo &cs_info = get_client_session_info(s);
+      if (OB_FAIL(cs_info.get_piece_info(info))) {
+        if (OB_HASH_NOT_EXIST == ret) {
+          if (OB_ISNULL(info = op_alloc(ObPieceInfo))) {
+            ret = OB_ALLOCATE_MEMORY_FAILED;
+            PROXY_API_LOG(ERROR, "fail to allocate memory for piece info", K(ret));
+          } else {
+            info->set_ps_id(cs_info.get_client_ps_id());
+            info->set_addr(s.sm_->get_server_session()->get_netvc()->get_remote_addr());
+            if (OB_FAIL(cs_info.add_piece_info(info))) {
+              PROXY_API_LOG(WARN, "fail to add piece info", K(ret));
+              op_free(info);
+              info = NULL;
+            }
           }
         }
       }
     }
-
     if (OB_FAIL(ret)) {
       s.current_.state_ = INTERNAL_ERROR;
       LOG_WARN("add piece info failed", K(ret));
@@ -3755,57 +4289,70 @@ inline void ObMysqlTransact::handle_handshake_pkt(ObTransState &s)
   if (OB_LIKELY(NULL != client_session)
       && OB_LIKELY(SERVER_SEND_HANDSHAKE == s.current_.send_action_)
       && OB_LIKELY(NULL != server_session)) {
-    ObRespAnalyzeResult &result = s.trans_info_.server_response_.get_analyze_result();
-
-    uint32_t conn_id = 0;
-    //use connection id from OMPKHandshakeResponse Packet when the follow happened
-    //1. proxy_mysql_client
-    //2. client service mode
-    //3. mysql routing mode
-    if (client_session->is_proxy_mysql_client_
-        || OB_CLIENT_SERVICE_MODE == s.mysql_config_params_->proxy_service_mode_
-        || s.mysql_config_params_->is_mysql_routing_mode()) {
-      conn_id = result.get_connection_id();
-    } else {
-      //if use server service mode, connection id is equal to cs_id
-      conn_id = client_session->get_cs_id();
-    }
-    server_session->set_server_sessid(conn_id);
-    ObMySQLCapabilityFlags capability(result.get_server_capability());
-    server_session->get_session_info().save_compatible_capability_flags(capability);
-    ObAddr client_addr = client_session->get_real_client_addr(const_cast<net::ObNetVConnection *>(server_session->get_netvc()));
-
-    //we need update proxy_sessid when first connect server
-    if (0 == client_session->get_proxy_sessid()) {
-      client_session->set_proxy_sessid(ObMysqlClientSession::get_next_proxy_sessid());
-      LOG_INFO("succ to set proxy_sessid", "cs_id", client_session->get_cs_id(),
-               "proxy_sessid", client_session->get_proxy_sessid(),
-               "server_ip", server_session->server_ip_,
-               "ss_id", server_session->ss_id_,
-               "server_sessid", conn_id,
-               "is_proxy_mysql_client", client_session->is_proxy_mysql_client_,
-               "ss_fd", server_session->get_netvc()->get_conn_fd(),
-               K(client_addr));
-    }
-    LOG_DEBUG("succ to fill conn id for server session", K(conn_id),
-              "ss_id", server_session->ss_id_,
-              "cs_id", client_session->get_cs_id(),
-              "proxy_sessid", client_session->get_proxy_sessid(),
-              "is_proxy_mysql_client", client_session->is_proxy_mysql_client_,
-              K(client_addr));
-
-    if (s.mysql_config_params_->enable_client_ip_checkout_) {
-      if (OB_UNLIKELY(!client_addr.is_valid())) {
-        ret = OB_ERR_UNEXPECTED;
-        LOG_WARN("real client add is invalid, it should not happened", K(client_addr), K(ret));
+    // for probing SQL
+    if (client_session->get_session_info().get_priv_info().user_name_ == ObProxyTableInfo::DETECT_USERNAME_USER) {
+      // Simulate the return of ERROR messages
+      LOG_DEBUG("get handshake from detect server success");
+      s.mysql_errcode_ = OB_NOT_SUPPORTED;
+      s.mysql_errmsg_ = "not supported, bad route request";
+      if (OB_FAIL(ObMysqlTransact::build_error_packet(s, client_session))) {
+        LOG_WARN("fail to encode err packet buf", K(ret));
       }
+      ret = OB_NOT_SUPPORTED;
     } else {
-      client_addr.reset();
-    }
-    if (OB_SUCC(ret)) {
-      if (s.sm_->client_session_->get_session_info().is_oceanbase_server()) {
-        if (OB_FAIL(handle_oceanbase_handshake_pkt(s, conn_id, client_addr))) {
-          LOG_WARN("fail to handle oceanbase handshke pkt", K(conn_id), K(client_addr), K(ret));
+      ObRespAnalyzeResult &result = s.trans_info_.server_response_.get_analyze_result();
+
+      uint32_t conn_id = 0;
+      //use connection id from OMPKHandshakeResponse Packet when the follow happened
+      //1. proxy_mysql_client
+      //2. client service mode
+      //3. mysql routing mode
+      if (client_session->is_proxy_mysql_client_
+          || OB_CLIENT_SERVICE_MODE == s.mysql_config_params_->proxy_service_mode_
+          || s.mysql_config_params_->is_mysql_routing_mode()) {
+        conn_id = result.get_connection_id();
+      } else {
+        //if use server service mode, connection id is equal to cs_id
+        conn_id = client_session->get_cs_id();
+      }
+      server_session->set_server_sessid(conn_id);
+      ObMySQLCapabilityFlags capability(result.get_server_capability());
+      server_session->get_session_info().save_compatible_capability_flags(capability);
+      ObAddr client_addr = client_session->get_real_client_addr(const_cast<net::ObNetVConnection *>(server_session->get_netvc()));
+
+      //we need update proxy_sessid when first connect server
+      if (0 == client_session->get_proxy_sessid()) {
+        client_session->set_proxy_sessid(ObMysqlClientSession::get_next_proxy_sessid());
+        LOG_INFO("succ to set proxy_sessid", "cs_id", client_session->get_cs_id(),
+            "proxy_sessid", client_session->get_proxy_sessid(),
+            "server_ip", server_session->server_ip_,
+            "ss_id", server_session->ss_id_,
+            "server_sessid", conn_id,
+            "is_proxy_mysql_client", client_session->is_proxy_mysql_client_,
+            "ss_fd", server_session->get_netvc()->get_conn_fd(),
+            K(client_addr));
+      }
+      LOG_DEBUG("succ to fill conn id for server session", K(conn_id),
+          "ss_id", server_session->ss_id_,
+          "cs_id", client_session->get_cs_id(),
+          "proxy_sessid", client_session->get_proxy_sessid(),
+          "is_proxy_mysql_client", client_session->is_proxy_mysql_client_,
+          K(client_addr));
+      s.trace_log_.log_it("[handshake]", "svr", s.server_info_.addr_, "svr_sessid", server_session->get_server_sessid());
+
+      if (s.mysql_config_params_->enable_client_ip_checkout_) {
+        if (OB_UNLIKELY(!client_addr.is_valid())) {
+          ret = OB_ERR_UNEXPECTED;
+          LOG_WARN("real client add is invalid, it should not happened", K(client_addr), K(ret));
+        }
+      } else {
+        client_addr.reset();
+      }
+      if (OB_SUCC(ret)) {
+        if (s.sm_->client_session_->get_session_info().is_oceanbase_server()) {
+          if (OB_FAIL(handle_oceanbase_handshake_pkt(s, conn_id, client_addr))) {
+            LOG_WARN("fail to handle oceanbase handshke pkt", K(conn_id), K(client_addr), K(ret));
+          }
         }
       }
     }
@@ -3825,7 +4372,7 @@ inline int ObMysqlTransact::handle_oceanbase_handshake_pkt(ObTransState &s, uint
 
   // current proxy support use compress, and inner request also use compress
   bool use_compress = s.mysql_config_params_->enable_compression_protocol_;
-  bool use_ob_protocol_v2 = s.mysql_config_params_->enable_ob_protocol_v2_;
+  bool use_ob_protocol_v2 = s.sm_->is_enable_ob_protocol_v2();
   bool use_ssl = s.sm_->enable_server_ssl_
                  && !s.sm_->client_session_->is_proxy_mysql_client_
                  && s.trans_info_.server_response_.get_analyze_result().support_ssl()
@@ -3950,24 +4497,39 @@ void ObMysqlTransact::handle_db_reset(ObTransState &s)
 inline void ObMysqlTransact::handle_first_response_packet(ObTransState &s)
 {
   ObRespAnalyzeResult &resp = s.trans_info_.server_response_.get_analyze_result();
-
+  bool is_user_request = false;
   // handle resp
   if (resp.is_resultset_resp()) {
     MYSQL_INCREMENT_TRANS_STAT(SERVER_RESULTSET_RESPONSES);
-    handle_resultset_resp(s);
+    handle_resultset_resp(s, is_user_request);
   } else if (resp.is_ok_resp()) {
     MYSQL_INCREMENT_TRANS_STAT(SERVER_OK_RESPONSES);
-    handle_ok_resp(s);
+    handle_ok_resp(s, is_user_request);
   } else if (resp.is_error_resp()) {
     MYSQL_INCREMENT_TRANS_STAT(SERVER_ERROR_RESPONSES);
-    handle_error_resp(s);
+    handle_error_resp(s, is_user_request);
   } else if (resp.is_handshake_pkt()) {
     MYSQL_INCREMENT_TRANS_STAT(SERVER_OTHER_RESPONSES);
     handle_handshake_pkt(s);
   } else {
     MYSQL_INCREMENT_TRANS_STAT(SERVER_OTHER_RESPONSES);
-    handle_ok_resp(s);
+    handle_ok_resp(s, is_user_request);
   }
+  
+  if (s.current_.send_action_ != SERVER_SEND_SAVED_LOGIN
+      && s.current_.send_action_ != SERVER_SEND_HANDSHAKE
+      && !is_user_request) {
+    bool is_only_sync_trans_sess = resp.is_error_resp();
+    if (OB_SUCCESS != ObProxySessionInfoHandler::save_changed_sess_info(s.sm_->get_client_session()->get_session_info(),
+                                                                        s.sm_->get_server_session()->get_session_info(),
+                                                                        resp.get_extra_info(),
+                                                                        s.trace_log_,
+                                                                        is_only_sync_trans_sess)) {
+      s.current_.state_ = INTERNAL_ERROR;
+      LOG_WARN("fail to save changed session info", K(get_send_action_name(s.current_.send_action_)));
+    }
+  }
+
 }
 
 inline ObServerSessionInfo &ObMysqlTransact::get_server_session_info(ObTransState &s)
@@ -4072,7 +4634,7 @@ inline void ObMysqlTransact::update_trace_stat(ObTransState &s)
         trace_record->server_state_ = static_cast<int8_t>(s.current_.state_);
         trace_record->send_action_ = static_cast<int8_t>(s.current_.send_action_);
         trace_record->resp_error_ = static_cast<int8_t>(s.current_.error_type_);
-        trace_record->addr_.set_ipv4_addr(s.server_info_.get_ipv4(), s.server_info_.get_port());
+        trace_record->addr_.set_sockaddr(s.server_info_.addr_.sa_);
         if (0 == trace_stats->last_trace_end_time_) {
           trace_record->cost_time_us_ = static_cast<int32_t>(hrtime_to_usec(
                 milestone_diff(s.sm_->milestones_.pl_lookup_begin_, get_based_hrtime(s))));
@@ -4098,16 +4660,18 @@ void ObMysqlTransact::handle_oceanbase_server_resp_error(ObTransState &s, ObMySQ
     case REQUEST_CONNECT_ERROR:
     case REQUEST_SERVER_INIT_ERROR:
     case REQUEST_REROUTE_ERROR:
-    case REQUEST_SERVER_STOPPING_ERROR: {
-      // before retry send request, write the saved packet to client buffer
-      ObString req_pkt = s.trans_info_.client_request_.get_req_pkt();
-      int64_t pkt_len = req_pkt.length();
+    case REQUEST_SERVER_STOPPING_ERROR:
+    case TRANS_FREE_ROUTE_NOT_SUPPORTED_ERROR: {
+      // before retry send request, write the req packet back to client buffer      
       ObIOBufferReader *client_reader = s.sm_->get_client_buffer_reader();
-      int64_t written_len = 0;
       if (OB_ISNULL(client_reader)) {
         ret = OB_ERR_UNEXPECTED;
         LOG_WARN("[ObMysqlTransact::handle_server_resp_error] client reader is NULL");
       } else {
+        // rewrite request to client buffer in order to retry
+        ObString req_pkt = s.trans_info_.client_request_.get_req_pkt();
+        int64_t pkt_len = req_pkt.length();
+        int64_t written_len = 0;
         if (0 != client_reader->read_avail() || req_pkt.empty()) {
           ret = OB_INNER_STAT_ERROR;
           LOG_ERROR("[ObMysqlTransact::handle_server_resp_error] invalid internal state",
@@ -4152,6 +4716,7 @@ void ObMysqlTransact::handle_oceanbase_server_resp_error(ObTransState &s, ObMySQ
     case SAVED_LOGIN_COMMON_ERROR:
     case RESET_SESSION_VARS_COMMON_ERROR:
     case START_TRANS_COMMON_ERROR:
+    case START_XA_START_ERROR:
     case SYNC_DATABASE_COMMON_ERROR: {
       //current server session is still ok
       s.sm_->clear_server_entry();
@@ -4285,7 +4850,7 @@ inline void ObMysqlTransact::handle_response_from_server(ObTransState &s)
                    "request_cmd", get_mysql_cmd_str(s.trans_info_.client_request_.get_packet_meta().cmd_),
                    "sql_cmd", get_mysql_cmd_str(s.trans_info_.sql_cmd_),
                    "sql", s.trans_info_.get_print_sql());
-        } else {
+        } else if (s.need_retry_) {
           LOG_WARN("connection error",
                    "server_state", ObMysqlTransact::get_server_state_name(s.current_.state_),
                    "request_cmd", get_mysql_cmd_str(s.trans_info_.client_request_.get_packet_meta().cmd_),
@@ -4314,13 +4879,16 @@ void ObMysqlTransact::handle_oceanbase_retry_server_connection(ObTransState &s)
   ObPieceInfo *info = NULL;
   ObSSRetryStatus retry_status = NO_NEED_RETRY;
   const int64_t max_connect_attempts = get_max_connect_attempts(s);
+  bool is_reroute_to_coordinator = false;
 
   ObIpEndpoint old_target_server;
   net::ops_ip_copy(old_target_server, s.server_info_.addr_.sa_);
 
   int64_t obproxy_route_addr = 0;
+  bool is_internal_routing = false;
   if (NULL != s.sm_ && NULL != s.sm_->client_session_) {
     obproxy_route_addr = s.sm_->client_session_->get_session_info().get_obproxy_route_addr();
+    is_internal_routing = s.sm_->client_session_->is_trans_internal_routing();
   }
 
   if (OB_FAIL(s.sm_->get_client_session()->get_session_info().get_piece_info(info))) {
@@ -4332,14 +4900,20 @@ void ObMysqlTransact::handle_oceanbase_retry_server_connection(ObTransState &s)
   if (OB_UNLIKELY(s.mysql_config_params_->is_mysql_routing_mode())) {
     LOG_DEBUG("in mysql mode, no need retry, will disconnect");
     retry_status = NO_NEED_RETRY;
+  } else if (OB_UNLIKELY(is_in_trans(s)
+                         && s.sm_->get_client_session()->is_proxy_enable_trans_internal_routing()
+                         && !s.sm_->get_client_session()->get_trans_coordinator_ss_addr().is_valid())) {
+    // check coordinator addr in transaction
+    LOG_WARN("coordinator add is invalid in transaction, no need retry");
+    retry_status = NO_NEED_RETRY;
+  
 
   // we will update retry_status only the follow all happened
-  // 1. not in transaction
+  // 1. not in transaction / in internal routing tranaction
   // 2. attempts_ is less then max_connect_attempts
   // 3. is not kill query
   // 4. is not piece info
-  } else if (!is_in_trans(s)
-            && s.need_retry_
+  } else if (s.need_retry_
              && s.current_.attempts_ < max_connect_attempts
              && 0 == obproxy_route_addr
              && !s.trans_info_.client_request_.is_kill_query()
@@ -4347,17 +4921,30 @@ void ObMysqlTransact::handle_oceanbase_retry_server_connection(ObTransState &s)
              && obmysql::OB_MYSQL_COM_STMT_GET_PIECE_DATA != s.trans_info_.sql_cmd_
              && !second_in) {
     ++s.current_.attempts_;
-    LOG_DEBUG("start next retry");
-
-    if (s.pll_info_.is_force_renew()) { // force pl lookup
-      retry_status = NOT_FOUND_EXISTING_ADDR;
-    } else if (REQUEST_REROUTE_ERROR == s.current_.error_type_) {
-      retry_status = FOUND_EXISTING_ADDR;
-      net::ops_ip_copy(s.server_info_.addr_, s.reroute_info_.replica_.server_.get_ipv4(),
-                       static_cast<uint16_t>(s.reroute_info_.replica_.server_.get_port()));
-    } else {
-      retry_status = retry_server_connection_not_open(s);
+    LOG_DEBUG("start next retry", "is in trans:", is_in_trans(s));
+    // if use target db server then no need renew, will retry server from target db server
+    if ((OB_NOT_NULL(s.trans_info_.client_request_.get_parse_result().get_target_db_server())
+          && !s.trans_info_.client_request_.get_parse_result().get_target_db_server()->is_empty())
+        || (OB_NOT_NULL(s.sm_->target_db_server_) && !s.sm_->target_db_server_->is_empty())) {
+      s.pll_info_.force_renew_state_ = ObPartitionLookupInfo::ObForceRenewState::NO_NEED_RENEW;
+      s.pll_info_.is_need_force_flush_ = false;
     }
+    if (s.current_.error_type_ == TRANS_FREE_ROUTE_NOT_SUPPORTED_ERROR) {
+      // downgrade transaction internal routing, route the rest of request to coordinator session
+      LOG_DEBUG("transaction internal routing retry", K(s.trans_info_.sql_cmd_));
+      retry_status = FOUND_EXISTING_ADDR;
+      s.server_info_.set_addr(s.sm_->get_client_session()->get_trans_coordinator_ss_addr());
+      is_reroute_to_coordinator = true;
+    } else if (!is_in_trans(s) || is_internal_routing) {
+      if (s.pll_info_.is_force_renew()) { // force pl lookup
+        retry_status = NOT_FOUND_EXISTING_ADDR;
+      } else if (REQUEST_REROUTE_ERROR == s.current_.error_type_) {
+        retry_status = FOUND_EXISTING_ADDR;
+        s.server_info_.set_addr(ops_ip_sa_cast(s.reroute_info_.replica_.server_.get_sockaddr()));
+      } else {
+        retry_status = retry_server_connection_not_open(s);
+      }
+    } 
   }
 
   if (NULL == s.congestion_entry_ || !s.congestion_entry_->is_congested()) {
@@ -4403,14 +4990,21 @@ void ObMysqlTransact::handle_oceanbase_retry_server_connection(ObTransState &s)
       s.congestion_entry_->dec_ref();
       s.congestion_entry_ = NULL;
     }
-    s.congestion_lookup_success_ = false;
-    s.need_congestion_lookup_ = true;
+    if (is_reroute_to_coordinator) {
+      s.congestion_lookup_success_ = true;
+      s.need_congestion_lookup_ = false;
+      s.pl_lookup_state_ = USE_COORDINATOR_SESSION;
+    } else {
+      s.congestion_lookup_success_ = false;
+      s.need_congestion_lookup_ = true;
+    }
 
     LOG_DEBUG("FOUND_EXISTING_ADDR, Retrying...",
               "attempts now", s.current_.attempts_,
               K(max_connect_attempts),
               "retry observer", s.server_info_.addr_,
-              "force_retry_congested", s.force_retry_congested_);
+              "force_retry_congested", s.force_retry_congested_,
+              "is reroute to coordinaotr", is_reroute_to_coordinator);
     TRANSACT_RETURN(SM_ACTION_CONGESTION_CONTROL_LOOKUP, handle_congestion_control_lookup);
   } else if (NOT_FOUND_EXISTING_ADDR == retry_status) {
     // before retry another server, reset analyze result
@@ -4449,7 +5043,15 @@ void ObMysqlTransact::handle_oceanbase_retry_server_connection(ObTransState &s)
 
 void ObMysqlTransact::handle_retry_server_connection(ObTransState &s)
 {
-  if (s.sm_->client_session_->get_session_info().is_oceanbase_server()) {
+  /*
+   * reset response transform hook to keep the plugin created as the correct order
+   * otherwise, the packet handled by plugin will be err, eg, reroute err packet
+   */
+  s.sm_->api_.txn_destroy_hook(OB_MYSQL_RESPONSE_TRANSFORM_HOOK);
+  
+  // Binlog requests also do not support retries
+  if (s.sm_->client_session_->get_session_info().is_oceanbase_server()
+      && !is_binlog_request(s)) {
     handle_oceanbase_retry_server_connection(s);
   } else {
     handle_server_connection_break(s);
@@ -4517,14 +5119,32 @@ ObMysqlTransact::ObSSRetryStatus ObMysqlTransact::retry_server_connection_not_op
       if (s.current_.attempts_ == get_max_connect_attempts(s)) {
         handle_retry_last_time(s);
       }
-
-      if ((s.mysql_config_params_->is_mock_routing_mode() && !s.sm_->client_session_->is_proxy_mysql_client_)
+      // target db server (sql comment & multi level config)
+      if (OB_NOT_NULL(s.trans_info_.client_request_.get_parse_result().get_target_db_server())
+          && !s.trans_info_.client_request_.get_parse_result().get_target_db_server()->is_empty()) {
+        if (OB_FAIL(s.trans_info_.client_request_.get_parse_result().get_target_db_server()->get_next(s.server_info_.addr_))) {
+          LOG_WARN("fail to get target db server from sql comment, will disconnect", K(ret));
+        } else {
+          ret_status = FOUND_EXISTING_ADDR;
+          LOG_DEBUG("succ to get target db server from sql comment, will retry",
+                  "address", s.server_info_.addr_);
+        } 
+      } else if (OB_NOT_NULL(s.sm_->target_db_server_) && !s.sm_->target_db_server_->is_empty()) {
+        if (OB_FAIL(s.sm_->target_db_server_->get_next(s.server_info_.addr_))) {
+          LOG_WARN("fail to get target db server from multi level config, will disconnect", K(ret));
+        } else {
+          ret_status = FOUND_EXISTING_ADDR;
+          LOG_DEBUG("succ to get target db server from multi level config, will retry",
+                "address", s.server_info_.addr_);
+        }  
+      // config: server_routing_mode & test_server_addr
+      } else if ((s.mysql_config_params_->is_mock_routing_mode() && !s.sm_->client_session_->is_proxy_mysql_client_)
           || s.mysql_config_params_->is_mysql_routing_mode()) {
         if (OB_FAIL(s.mysql_config_params_->get_one_test_server_addr(s.server_info_.addr_))) {
           LOG_WARN("mysql or mock mode, but test server addr in not set, disconnect", K(ret));
         } else {
           s.sm_->client_session_->test_server_addr_ = s.server_info_.addr_;
-          LOG_DEBUG("mysql mode, test server is valid, just use it and skip pl lookup",
+          LOG_DEBUG("mysql mode, test server is valid, just use it to retry",
                     "address", s.server_info_.addr_);
         }
       } else if (s.pll_info_.replica_size() > 0) {
@@ -4549,7 +5169,8 @@ ObMysqlTransact::ObSSRetryStatus ObMysqlTransact::retry_server_connection_not_op
           }
 
           if ((NULL != replica) && replica->is_valid()) {
-            s.server_info_.set_addr(replica->server_.get_ipv4(), static_cast<uint16_t>(replica->server_.get_port()));
+            struct sockaddr_storage sockaddr = replica->server_.get_sockaddr();
+            s.server_info_.set_addr(*(struct sockaddr*)(&(sockaddr)));
             LOG_DEBUG("set addr here", K(s.server_info_.addr_));
             ret_status = FOUND_EXISTING_ADDR;
           } else {
@@ -4590,35 +5211,51 @@ ObMysqlTransact::ObSSRetryStatus ObMysqlTransact::retry_server_connection_not_op
 inline void ObMysqlTransact::handle_server_connection_break(ObTransState &s)
 {
   if (NULL != s.sm_->client_session_) {
-    int64_t ss_id = (OB_ISNULL(s.sm_->get_server_session()) ? 0 : s.sm_->get_server_session()->ss_id_);
-    uint32_t server_sessid = (OB_ISNULL(s.sm_->get_server_session()) ? 0 : s.sm_->get_server_session()->get_server_sessid());
-
-    LOG_INFO("[ObMysqlTransact::handle_server_connection_break]",
-             "client_ip", s.client_info_.addr_,
-             "server_ip", s.server_info_.addr_,
-             "cs_id", s.sm_->client_session_->get_cs_id(),
-             "proxy_sessid", s.sm_->client_session_->get_proxy_sessid(),
-             K(ss_id),
-             K(server_sessid),
-             "sm_id", s.sm_->sm_id_,
-             "proxy_user_name", s.sm_->client_session_->get_session_info().get_priv_info().get_proxy_user_name(),
-             "database_name", s.sm_->client_session_->get_session_info().get_database_name(),
-             "server_state", ObMysqlTransact::get_server_state_name(s.current_.state_),
-             "request_cmd", get_mysql_cmd_str(s.trans_info_.client_request_.get_packet_meta().cmd_),
-             "sql_cmd", get_mysql_cmd_str(s.trans_info_.sql_cmd_),
-             "sql", s.trans_info_.get_print_sql());
-
-    if (obmysql::OB_MYSQL_COM_QUIT != s.trans_info_.sql_cmd_) {
-      OBPROXY_XF_LOG(INFO, XFH_CONNECTION_SERVER_ABORT,
-                     "client_ip", s.client_info_.addr_,
-                     "server_ip", s.server_info_.addr_,
-                     "cluster_name", s.sm_->client_session_->get_session_info().get_priv_info().cluster_name_,
-                     "tenant_name", s.sm_->client_session_->get_session_info().get_priv_info().tenant_name_,
-                     "user_name", s.sm_->client_session_->get_session_info().get_priv_info().user_name_,
-                     "db", s.sm_->client_session_->get_session_info().get_database_name(),
-                     "server_state", ObMysqlTransact::get_server_state_name(s.current_.state_),
-                     "sql", s.trans_info_.client_request_.get_print_sql(),
-                     "request_cmd", get_mysql_cmd_str(s.trans_info_.sql_cmd_));
+    if (s.sm_->client_session_->get_session_info().get_priv_info().user_name_ == ObProxyTableInfo::DETECT_USERNAME_USER) {
+      // do nothing
+    } else {
+      int64_t ss_id = (OB_ISNULL(s.sm_->get_server_session()) ? 0 : s.sm_->get_server_session()->ss_id_);
+      uint32_t server_sessid = (OB_ISNULL(s.sm_->get_server_session()) ? 0 : s.sm_->get_server_session()->get_server_sessid());
+
+      LOG_INFO("[ObMysqlTransact::handle_server_connection_break]",
+          "client_ip", s.client_info_.addr_,
+          "server_ip", s.server_info_.addr_,
+          "cs_id", s.sm_->client_session_->get_cs_id(),
+          "proxy_sessid", s.sm_->client_session_->get_proxy_sessid(),
+          K(ss_id),
+          K(server_sessid),
+          "sm_id", s.sm_->sm_id_,
+          "proxy_user_name", s.sm_->client_session_->get_session_info().get_priv_info().get_proxy_user_name(),
+          "database_name", s.sm_->client_session_->get_session_info().get_database_name(),
+          "server_state", ObMysqlTransact::get_server_state_name(s.current_.state_),
+          "request_cmd", get_mysql_cmd_str(s.trans_info_.client_request_.get_packet_meta().cmd_),
+          "sql_cmd", get_mysql_cmd_str(s.trans_info_.sql_cmd_),
+          "sql", s.trans_info_.get_print_sql());
+
+      if (obmysql::OB_MYSQL_COM_QUIT != s.trans_info_.sql_cmd_) {
+        OBPROXY_XF_LOG(INFO, XFH_CONNECTION_SERVER_ABORT,
+            "client_ip", s.client_info_.addr_,
+            "server_ip", s.server_info_.addr_,
+            "cluster_name", s.sm_->client_session_->get_session_info().get_priv_info().cluster_name_,
+            "tenant_name", s.sm_->client_session_->get_session_info().get_priv_info().tenant_name_,
+            "user_name", s.sm_->client_session_->get_session_info().get_priv_info().user_name_,
+            "db", s.sm_->client_session_->get_session_info().get_database_name(),
+            "server_state", ObMysqlTransact::get_server_state_name(s.current_.state_),
+            "sql", s.trans_info_.client_request_.get_print_sql(),
+            "request_cmd", get_mysql_cmd_str(s.trans_info_.sql_cmd_));
+
+        s.trace_log_.log_it("[svr_connection_break]",
+            "cli", s.client_info_.addr_,
+            "svr", s.server_info_.addr_,
+            "cluster", s.sm_->client_session_->get_session_info().get_priv_info().cluster_name_,
+            "tenant", s.sm_->client_session_->get_session_info().get_priv_info().tenant_name_,
+            "user", s.sm_->client_session_->get_session_info().get_priv_info().user_name_,
+            "db", s.sm_->client_session_->get_session_info().get_database_name(),
+            "svr_state", ObMysqlTransact::get_server_state_name(s.current_.state_),
+            "sql", s.trans_info_.client_request_.get_print_sql(),
+            "sql_cmd", get_mysql_cmd_str(s.trans_info_.sql_cmd_));
+        LOG_WARN("trace_log", K(s.trace_log_));
+      }
     }
   } else {
     LOG_INFO("[ObMysqlTransact::handle_server_connection_break]",
@@ -4636,6 +5273,14 @@ inline void ObMysqlTransact::handle_server_connection_break(ObTransState &s)
                      "server_state", ObMysqlTransact::get_server_state_name(s.current_.state_),
                      "sql", s.trans_info_.client_request_.get_print_sql(),
                      "request_cmd", get_mysql_cmd_str(s.trans_info_.sql_cmd_));
+      
+      s.trace_log_.log_it("[svr_connection_break]",
+                     "cli", s.client_info_.addr_,
+                     "svr", s.server_info_.addr_,
+                     "svr_state", ObMysqlTransact::get_server_state_name(s.current_.state_),
+                     "sql", s.trans_info_.client_request_.get_print_sql(),
+                     "sql_cmd", get_mysql_cmd_str(s.trans_info_.sql_cmd_));
+      LOG_WARN("trace_log", K(s.trace_log_));
     }
   }
 
@@ -4652,7 +5297,7 @@ inline void ObMysqlTransact::handle_server_connection_break(ObTransState &s)
 void ObMysqlTransact::handle_on_forward_server_response(ObTransState &s)
 {
   LOG_DEBUG("[ObMysqlTransact::handle_on_forward_server_response]",
-            "cur_send_action", ObMysqlTransact::get_send_action_name(s.current_.send_action_));
+            "cur_send_action", ObMysqlTransact::get_send_action_name(s.current_.send_action_),"startm trans", s.is_hold_start_trans_);
 
   switch (s.current_.send_action_) {
     case SERVER_SEND_HANDSHAKE: {
@@ -4705,7 +5350,7 @@ void ObMysqlTransact::handle_on_forward_server_response(ObTransState &s)
         break;
       } else if (client_info.is_oceanbase_server()) {
         bool is_proxy_mysql_client_ = s.sm_->client_session_->is_proxy_mysql_client_;
-        if (client_info.need_reset_all_session_vars() && !is_proxy_mysql_client_) {
+        if (client_info.need_reset_all_session_vars() && !is_binlog_request(s) && !is_proxy_mysql_client_) {
           // 1.if global vars changed, we need to sync all session vars to keep
           //   server session vars is equal to the snapshot of client session
           // 2.proxy mysql client no need sync all session vars
@@ -4730,7 +5375,9 @@ void ObMysqlTransact::handle_on_forward_server_response(ObTransState &s)
         //obutils::ObSqlParseResult &sql_result = s.trans_info_.client_request_.get_parse_result();
         obmysql::ObMySQLCmd cmd = s.trans_info_.client_request_.get_packet_meta().cmd_;
         if (obmysql::OB_MYSQL_COM_STMT_CLOSE == cmd
-            || obmysql::OB_MYSQL_COM_STMT_RESET == cmd) {
+            || obmysql::OB_MYSQL_COM_STMT_RESET == cmd
+            || is_binlog_request(s)
+            || s.sm_->client_session_->can_direct_send_request_) {
           // no need sync var, send to server directly
           s.current_.send_action_ = SERVER_SEND_REQUEST;
           s.next_action_ = SM_ACTION_API_SEND_REQUEST;
@@ -4757,13 +5404,17 @@ void ObMysqlTransact::handle_on_forward_server_response(ObTransState &s)
         ObClientSessionInfo &client_info = get_client_session_info(s);
         ObServerSessionInfo &server_info = get_server_session_info(s);
         //obutils::ObSqlParseResult &sql_result = s.trans_info_.client_request_.get_parse_result();
-        if (client_info.need_reset_session_vars(server_info)) {
+        if (client_info.is_server_support_session_var_sync() && 
+            client_info.need_reset_user_session_vars(server_info)) {
+          s.current_.send_action_ = SERVER_SEND_SESSION_USER_VARS;
+          s.next_action_ = SM_ACTION_API_SEND_REQUEST;
+          break;
+        } else if (!client_info.is_server_support_session_var_sync() &&
+                    client_info.need_reset_session_vars(server_info)) {
           s.current_.send_action_ = SERVER_SEND_SESSION_VARS;
           s.next_action_ = SM_ACTION_API_SEND_REQUEST;
           break;
-        } else {
-          // fall through:
-        }
+        } else { /* fall through */ }
       } else {
         s.current_.state_ = INTERNAL_ERROR;
         handle_server_connection_break(s);
@@ -4775,27 +5426,24 @@ void ObMysqlTransact::handle_on_forward_server_response(ObTransState &s)
       }
       __attribute__ ((fallthrough));
     case SERVER_SEND_SESSION_VARS:
-    case SERVER_SEND_LAST_INSERT_ID:
+    case SERVER_SEND_SESSION_USER_VARS:
     case SERVER_SEND_PREPARE:
     case SERVER_SEND_TEXT_PS_PREPARE:
+    case SERVER_SEND_XA_START:
     case SERVER_SEND_START_TRANS: {
       if (OB_LIKELY(NULL != s.sm_->client_session_) && OB_LIKELY(NULL != s.sm_->get_server_session())) {
         ObClientSessionInfo &client_info = get_client_session_info(s);
         ObServerSessionInfo &server_info = get_server_session_info(s);
         obmysql::ObMySQLCmd cmd = s.trans_info_.client_request_.get_packet_meta().cmd_;
         ObProxyMysqlRequest &client_request = s.trans_info_.client_request_;
-        //obutils::ObSqlParseResult &sql_result = s.trans_info_.client_request_.get_parse_result();
-        if (client_info.need_reset_last_insert_id(server_info)) {
-          // TODO: current version proxy parse can't judge last_insert_id exactly,
-          // so we do not judge, whether sql_reuslt has_last_insert_id here
-          // if it is large request, we do not parse the sql, we don't know whether the sql contains
-          // last_insert_id, in this case we will sync last_insert_id if need
-          s.current_.send_action_ = SERVER_SEND_LAST_INSERT_ID;
-        } else if (s.is_hold_start_trans_) {
+        if (s.is_hold_start_trans_) {
           s.current_.send_action_ = SERVER_SEND_START_TRANS;
+        } else if (s.is_hold_xa_start_) {
+          LOG_DEBUG("[ObMysqlTransact::handle_on_forward_server_response] set send action SERVER_SEND_XA_START for sync xa start");
+          s.current_.send_action_ = SERVER_SEND_XA_START;
         } else if ((obmysql::OB_MYSQL_COM_STMT_EXECUTE == cmd
-                   || obmysql::OB_MYSQL_COM_STMT_SEND_PIECE_DATA == cmd
-                   || obmysql::OB_MYSQL_COM_STMT_SEND_LONG_DATA == cmd)
+                    || obmysql::OB_MYSQL_COM_STMT_SEND_PIECE_DATA == cmd
+                    || obmysql::OB_MYSQL_COM_STMT_SEND_LONG_DATA == cmd)
                    && client_info.need_do_prepare(server_info)) {
           s.current_.send_action_ = SERVER_SEND_PREPARE;
         } else if (client_request.get_parse_result().is_text_ps_execute_stmt() &&
@@ -4909,11 +5557,11 @@ inline void ObMysqlTransact::update_sync_session_stat(ObTransState &s)
       MYSQL_INCREMENT_TRANS_STAT(SEND_CHANGED_SESSION_VARS_REQUESTS);
       break;
 
-    case SERVER_SEND_LAST_INSERT_ID:
-      s.sm_->cmd_time_stats_.server_send_last_insert_id_time_ += cost;
+    case SERVER_SEND_SESSION_USER_VARS:
+      s.sm_->cmd_time_stats_.server_send_session_user_variable_time_ += cost;
       s.sm_->cmd_time_stats_.server_sync_session_variable_time_ += cost;
-      MYSQL_SUM_TIME_STAT(TOTAL_SEND_LAST_INSERT_ID_TIME, cost);
-      MYSQL_INCREMENT_TRANS_STAT(SEND_LAST_INSERT_ID_REQUESTS);
+      MYSQL_SUM_TIME_STAT(TOTAL_SEND_CHANGED_SESSION_USER_VARS_TIME, cost);
+      MYSQL_INCREMENT_TRANS_STAT(SEND_CHANGED_SESSION_USER_VARS_REQUESTS);
       break;
 
     case SERVER_SEND_START_TRANS:
@@ -4922,6 +5570,13 @@ inline void ObMysqlTransact::update_sync_session_stat(ObTransState &s)
       MYSQL_SUM_TIME_STAT(TOTAL_SEND_START_TRANS_TIME, cost);
       MYSQL_INCREMENT_TRANS_STAT(SEND_START_TRANS_REQUESTS);
       break;
+    
+    case SERVER_SEND_XA_START:
+      s.sm_->cmd_time_stats_.server_send_xa_start_time_ += cost;
+      s.sm_->cmd_time_stats_.server_sync_session_variable_time_ += cost;
+      MYSQL_SUM_TIME_STAT(TOTAL_SEND_XA_START_TIME, cost);
+      MYSQL_INCREMENT_TRANS_STAT(SEND_XA_START_REQUESTS);
+      break;
 
     case SERVER_SEND_HANDSHAKE:
     case SERVER_SEND_LOGIN:
@@ -5177,12 +5832,18 @@ int ObMysqlTransact::build_error_packet(ObTransState &s, ObMysqlClientSession *c
   }
 
   if (OB_SUCC(ret)) {
+    ObMysqlSM *sm = s.sm_;
+    ObProxyProtocol client_protocol = ObProxyProtocol::PROTOCOL_NORMAL;
+    if (sm != NULL) {
+      client_protocol = sm->get_client_session_protocol();
+    }
+  
     int errcode = s.mysql_errcode_;
     s.inner_errcode_ = s.mysql_errcode_;
     uint8_t next_seq = 0;
     if (s.is_auth_request_) {
-      if ((NULL != s.sm_) && (NULL != s.sm_->client_session_)) {
-        ObMysqlAuthRequest &auth_req = s.sm_->client_session_->get_session_info().get_login_req();
+      if (client_session != NULL) {
+        ObMysqlAuthRequest &auth_req = client_session->get_session_info().get_login_req();
         next_seq = static_cast<uint8_t>(auth_req.get_packet_meta().pkt_seq_ + 1);
       }
     } else {
@@ -5192,7 +5853,8 @@ int ObMysqlTransact::build_error_packet(ObTransState &s, ObMysqlClientSession *c
 
     if (NULL != s.mysql_errmsg_) {
       const char *errmsg = s.mysql_errmsg_;
-      if (OB_FAIL(ObProxyPacketWriter::write_error_packet(*buf, client_session, next_seq, errcode, errmsg))) {
+      if (OB_FAIL(ObProxyPacketWriter::write_error_packet(*buf, client_session, client_protocol,
+                                                          next_seq, errcode, errmsg))) {
         LOG_WARN("[ObMysqlTransact::build_error_packet] fail to encode err pacekt buf",
                  K(next_seq), K(errmsg), K(errcode), K(ret));
       }
@@ -5207,8 +5869,8 @@ int ObMysqlTransact::build_error_packet(ObTransState &s, ObMysqlClientSession *c
           int64_t name_len = 0;
           const char *name_str = NULL;
           bool has_auth_resp = false;
-          if ((NULL != s.sm_) && (NULL != s.sm_->client_session_)) {
-            ObClientSessionInfo &client_info = s.sm_->client_session_->get_session_info();
+          if (client_session != NULL) {
+            ObClientSessionInfo &client_info = client_session->get_session_info();
             ObMysqlAuthRequest &auth_req = client_info.get_login_req();
             ObHSRResult &result = auth_req.get_hsr_result();
             if (!result.is_clustername_from_default_) {
@@ -5226,8 +5888,8 @@ int ObMysqlTransact::build_error_packet(ObTransState &s, ObMysqlClientSession *c
           if (OB_FAIL(databuff_printf(errmsg, BUF_LEN, pos, ob_str_user_error(errcode),
                   name_len, name_str, strlen(ip_buff), ip_buff, (has_auth_resp ? "YES" : "NO")))) {
             LOG_WARN("fail to fill err_msg", K(ret));
-          } else if (OB_FAIL(ObProxyPacketWriter::write_error_packet(*buf, client_session, next_seq, 
-                                                                     errcode, errmsg))) {
+          } else if (OB_FAIL(ObProxyPacketWriter::write_error_packet(*buf, client_session, client_protocol,
+                                                                     next_seq, errcode, errmsg))) {
             LOG_WARN("[ObMysqlTransact::build_error_packet] fail to encode err pacekt buf",
                      K(next_seq), K(errcode), K(ret));
           } else {
@@ -5249,8 +5911,8 @@ int ObMysqlTransact::build_error_packet(ObTransState &s, ObMysqlClientSession *c
           char *err_msg = NULL;
           if (OB_FAIL(ObProxyPacketWriter::get_err_buf(errcode, err_msg))) {
             LOG_WARN("fail to get err buf", K(ret));
-          } else if (OB_FAIL(ObProxyPacketWriter::write_error_packet(*buf, client_session, next_seq,
-                                                                     errcode, err_msg))) {
+          } else if (OB_FAIL(ObProxyPacketWriter::write_error_packet(*buf, client_session, client_protocol,
+                                                                     next_seq, errcode, err_msg))) {
             LOG_WARN("[ObMysqlTransact::build_error_packet] fail to build not supported err resp", K(ret));
           } else {
             // nothing
@@ -5313,6 +5975,13 @@ void ObMysqlTransact::ObTransState::refresh_mysql_config()
     }
   }
 
+  // record v2 config
+  if (is_auth_request_) {
+    bool enable_v2 = mysql_config_params_->enable_ob_protocol_v2_;
+    sm_->set_enable_ob_protocol_v2(enable_v2);
+    PROXY_CS_LOG(DEBUG, "client session start with ", "enable_ob_protocol_v2:", enable_v2, "cs_id", sm_->get_client_session()->get_cs_id());
+  }
+
   // Start to get the version number. If there are concurrent modifications, the version will be pushed up.
   // The next time it is executed, it will continue to be updated.
   ObNetVConnection *client_vc = static_cast<ObNetVConnection*>(sm_->get_client_session()->get_netvc());
@@ -5320,11 +5989,9 @@ void ObMysqlTransact::ObTransState::refresh_mysql_config()
   ObClientSessionInfo &session_info = sm_->get_client_session()->get_session_info();
   uint64_t global_version = get_global_proxy_config_table_processor().get_config_version();
   if (sm_->config_version_ != global_version && NULL != client_vc) {
-    int32_t ip = ntohl(client_vc->get_virtual_ip());
-    int32_t port = static_cast<int32_t>(client_vc->get_virtual_port());
     int64_t vid = static_cast<int64_t>(client_vc->get_virtual_vid());
     ObVipAddr addr;
-    addr.set(ip, port, vid);
+    addr.set(client_vc->get_virtual_addr(), vid);
     ObString tenant_name;
     ObString cluster_name;
     if (client_session->is_need_convert_vip_to_tname() && client_session->is_vip_lookup_success()) {
@@ -5353,7 +6020,9 @@ void ObMysqlTransact::ObTransState::refresh_mysql_config()
     LOG_DEBUG("get config succ", K(addr), K(cluster_name), K(tenant_name),
         K_(sm_->proxy_route_policy), K_(sm_->proxy_idc_name),
         K_(sm_->enable_cloud_full_username), K_(sm_->enable_client_ssl),
-        K_(sm_->enable_server_ssl), K(ret));
+        K_(sm_->enable_server_ssl), K_(sm_->enable_transaction_split), K_(sm_->enable_transaction_split),
+        K(session_info.is_request_follower_user()), K(session_info.is_read_only_user()),
+        K_(sm_->target_db_server), K(ret));
   }
 }
 
@@ -5363,6 +6032,7 @@ int ObMysqlTransact::ObTransState::get_config_item(const ObString& cluster_name,
                                                    const int64_t global_version)
 {
   int ret = OB_SUCCESS;
+  ObClientSessionInfo &session_info = sm_->get_client_session()->get_session_info();
   if (OB_SUCC(ret)) {
     ObConfigItem item;
     if (OB_FAIL(get_global_config_processor().get_proxy_config(
@@ -5413,6 +6083,99 @@ int ObMysqlTransact::ObTransState::get_config_item(const ObString& cluster_name,
     }
   }
 
+  if (OB_SUCC(ret)) {
+    ObConfigItem item;
+    if (OB_FAIL(get_global_config_processor().get_proxy_config(
+            addr, cluster_name, tenant_name, "target_db_server", item))) {
+      LOG_WARN("fail to get target_db_server", K(addr), K(cluster_name), K(tenant_name), K(ret));
+    // if config empty
+    } else if (OB_ISNULL(item.str()) || strlen(item.str()) == 0 ) {
+      // target db server not null, reset it
+      if (OB_NOT_NULL(sm_->target_db_server_)) {
+        op_free(sm_->target_db_server_);
+        sm_->target_db_server_ = NULL;
+      // target db server is null, do nothing
+      } else { /* do nothing */}
+    // if config not empty
+    // target db server is null, allocate and init one
+    } else if (OB_ISNULL(sm_->target_db_server_) && OB_ISNULL(sm_->target_db_server_ = op_alloc(ObTargetDbServer))) {
+      ret = OB_ALLOCATE_MEMORY_FAILED;
+      LOG_WARN("fail to alloc memory to for target db server", K(ret));
+    } else if (OB_FAIL(sm_->target_db_server_->init(item.str(), strlen(item.str())))) {
+      LOG_WARN("fail to load target db server from multi level config", K(ret));
+    }
+  }
+
+  if (OB_SUCC(ret)) {
+    ObConfigIntItem int_item;
+    if (OB_FAIL(get_global_config_processor().get_proxy_config_int_item(
+         addr, cluster_name, tenant_name, "obproxy_read_only", int_item))) {
+      LOG_WARN("get vip obproxy_read_only failed", K(addr), K(cluster_name), K(tenant_name), K(ret));
+    } else {
+      bool is_read_only = (ReadOnly == int_item.get_value());
+      bool is_sys_var_update = (session_info.is_read_only_user() != is_read_only);
+      session_info.set_is_read_only_user(is_read_only);
+      if (is_sys_var_update) {
+        ObString tx_read_only("tx_read_only");
+        ObString tx_read_only_true;
+        if (session_info.is_read_only_user()) {
+          tx_read_only_true = "1";
+        } else {
+          tx_read_only_true = "0";
+        }
+        if (OB_FAIL(session_info.update_sys_variable(tx_read_only, tx_read_only_true))) {
+          LOG_WARN("replace user variables failed", K(tx_read_only_true), K(ret));
+        }
+      }
+    }
+  }
+
+  if (OB_SUCC(ret)) {
+    ObConfigIntItem int_item;
+    if (OB_FAIL(get_global_config_processor().get_proxy_config_int_item(
+         addr, cluster_name, tenant_name, "obproxy_read_consistency", int_item))) {
+      LOG_WARN("get vip obproxy_read_consistency failed", K(addr), K(cluster_name), K(tenant_name), K(ret));
+    } else {
+      bool is_request_follower = (RequestFollower == int_item.get_value());
+      bool is_sys_var_update = (session_info.is_request_follower_user() != is_request_follower);
+      session_info.set_is_request_follower_user(is_request_follower);
+      if (is_sys_var_update) {
+        ObString ob_read_consistency("ob_read_consistency");
+        ObString weak;
+        if (session_info.is_request_follower_user()) {
+          weak = "2";
+        } else {
+          weak = "3";
+        }
+        if (OB_FAIL(session_info.update_sys_variable(ob_read_consistency, weak))) {
+          LOG_WARN("replace user variables failed", K(weak), K(ret));
+        } else {
+          session_info.set_read_consistency_set_flag(true);
+        }
+      }
+    }
+  }
+
+  if (OB_SUCC(ret)) {
+    ObConfigBoolItem bool_item;
+    if (OB_FAIL(get_global_config_processor().get_proxy_config_bool_item(
+            addr, cluster_name, tenant_name, "enable_read_write_split", bool_item))) {
+      LOG_WARN("get enable_read_write_split failed", K(addr), K(cluster_name), K(tenant_name), K(ret));
+    } else {
+      sm_->enable_read_write_split_ = bool_item.get_value();
+    }
+  }
+
+  if (OB_SUCC(ret)) {
+    ObConfigBoolItem bool_item;
+    if (OB_FAIL(get_global_config_processor().get_proxy_config_bool_item(
+            addr, cluster_name, tenant_name, "enable_transaction_split", bool_item))) {
+      LOG_WARN("get enable_transaction_split failed", K(addr), K(cluster_name), K(tenant_name), K(ret));
+    } else {
+      sm_->enable_transaction_split_ = bool_item.get_value();
+    }
+  }
+
   if (OB_SUCC(ret) && global_version > 0) {
     sm_->config_version_ = global_version;
   }
@@ -5629,6 +6392,10 @@ const char *ObMysqlTransact::get_server_resp_error_name(ObMysqlTransact::ObServe
       ret = "START_TRANS_COMMON_ERROR";
       break;
 
+    case ObMysqlTransact::START_XA_START_ERROR:
+      ret = "START_XA_START_ERROR";
+      break;
+
     case ObMysqlTransact::SYNC_DATABASE_COMMON_ERROR:
       ret = "SYNC_DATABASE_COMMON_ERROR";
       break;
@@ -5673,6 +6440,9 @@ const char *ObMysqlTransact::get_server_resp_error_name(ObMysqlTransact::ObServe
       ret = "SYANDBY_WEAK_READONLY_ERROR";
       break;
 
+    case ObMysqlTransact::TRANS_FREE_ROUTE_NOT_SUPPORTED_ERROR:
+      ret = "TRANS_FREE_ROUTE_NOT_SUPPORTED_ERROR";
+      break;
     case ObMysqlTransact::MAX_RESP_ERROR:
       ret = "MAX_RESP_ERR";
       break;
@@ -5788,13 +6558,17 @@ const char *ObMysqlTransact::get_send_action_name(
     case ObMysqlTransact::SERVER_SEND_SESSION_VARS:
       ret = "SERVER_SEND_SESSION_VARS";
       break;
+    
+    case ObMysqlTransact::SERVER_SEND_SESSION_USER_VARS:
+      ret = "SERVER_SEND_SESSION_USER_VARS";
+      break;
 
     case ObMysqlTransact::SERVER_SEND_START_TRANS:
       ret = "SERVER_SEND_START_TRANS";
       break;
 
-    case ObMysqlTransact::SERVER_SEND_LAST_INSERT_ID:
-      ret = "SERVER_SEND_LAST_INSERT_ID";
+    case ObMysqlTransact::SERVER_SEND_XA_START:
+      ret = "SERVER_SEND_XA_START";
       break;
 
     case ObMysqlTransact::SERVER_SEND_REQUEST:
@@ -5852,7 +6626,13 @@ bool ObMysqlTransact::is_internal_request(ObTransState &s)
                        || s.trans_info_.client_request_.get_parse_result().is_show_table_status_stmt())
                       && !is_single_shard_db_table(s))))
           || (s.is_trans_first_request_
+              && !s.is_hold_xa_start_
               && s.trans_info_.client_request_.get_parse_result().need_hold_start_trans())
+          || (s.is_trans_first_request_
+              && !s.is_hold_start_trans_
+              && !s.is_hold_xa_start_
+              && s.trans_info_.client_request_.get_parse_result().need_hold_xa_start()
+              && get_global_proxy_config().enable_xa_route)
           || s.trans_info_.client_request_.get_parse_result().is_internal_request()
           || is_bad_route_request(s))
           || !is_supported_mysql_cmd(s.trans_info_.sql_cmd_)
@@ -5862,6 +6642,95 @@ bool ObMysqlTransact::is_internal_request(ObTransState &s)
               &&s.trans_info_.client_request_.get_parse_result().is_set_ob_read_consistency());
 }
 
+int64_t ObMysqlTransact::get_max_connect_attempts(ObTransState &s)
+{
+  int64_t target_db_server_num = 0;
+  if (NULL != s.trans_info_.client_request_.get_parse_result().get_target_db_server()
+             && 0 < s.trans_info_.client_request_.get_parse_result().get_target_db_server()->num()) {
+    target_db_server_num = s.trans_info_.client_request_.get_parse_result().get_target_db_server()->num();
+  } else if (NULL != s.sm_->target_db_server_ && 0 < s.sm_->target_db_server_->num()) {
+    target_db_server_num = s.sm_->target_db_server_->num();
+  }
+  return std::max(target_db_server_num, std::max(s.mysql_config_params_->connect_observer_max_retries_,
+                  get_max_connect_attempts_from_replica(s.pll_info_.replica_size())));
+}
+
+bool ObMysqlTransact::is_binlog_request(const ObTransState &s)
+{
+  bool bret = false;
+  if (get_global_proxy_config().enable_binlog_service
+      && (obmysql::OB_MYSQL_COM_REGISTER_SLAVE == s.trans_info_.client_request_.get_packet_meta().cmd_
+      || obmysql::OB_MYSQL_COM_BINLOG_DUMP == s.trans_info_.client_request_.get_packet_meta().cmd_
+      || obmysql::OB_MYSQL_COM_BINLOG_DUMP_GTID == s.trans_info_.client_request_.get_packet_meta().cmd_
+      || s.trans_info_.client_request_.get_parse_result().is_binlog_stmt())) {
+    bret = true;
+  }
+
+  return bret;
+}
+
+void ObMysqlTransact::handle_binlog_request(ObTransState &s)
+{
+  ObClientSessionInfo &cs_info = get_client_session_info(s);
+  ObString cluster_name = cs_info.get_priv_info().cluster_name_;
+  ObString tenant_name = cs_info.get_priv_info().tenant_name_;
+
+  ObTableEntryName &te_name = s.pll_info_.te_name_;
+  te_name.cluster_name_ = cluster_name;
+  te_name.tenant_name_ = tenant_name;
+  // mock database name
+  te_name.database_name_ = OB_SYS_DATABASE_NAME;
+  te_name.table_name_ = OB_ALL_BINLOG_DUMMY_TNAME;
+  LOG_DEBUG("handle binlog request", K(te_name));
+  TRANSACT_RETURN(SM_ACTION_BINLOG_LOCATION_LOOKUP, handle_bl_lookup);
+}
+
+void ObMysqlTransact::handle_bl_lookup(ObTransState &s)
+{
+  int ret = OB_SUCCESS;
+  ++s.pll_info_.pl_attempts_;
+
+  if (OB_UNLIKELY(!s.pll_info_.lookup_success_)) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("[ObMysqlTransact::handle_bl_lookup] "
+             "fail to lookup binlog location, will disconnect", K(ret));
+  } else if (s.server_info_.addr_.is_valid()) {
+    // do nothing
+  } else {
+    LOG_DEBUG("ObMysqlTransact::handle_bl_lookup] binlog location lookup successful",
+        "pl_attempts", s.pll_info_.pl_attempts_);
+    const ObProxyPartitionLocation *pl = s.pll_info_.route_.table_entry_->get_first_pl();
+    if (NULL != pl && pl->replica_count() > 0) {
+      s.server_info_.set_addr(ops_ip_sa_cast(pl->get_replica(0)->server_.get_sockaddr()));
+      s.pll_info_.route_.cur_chosen_server_.replica_ = pl->get_replica(0);
+    } else {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_ERROR("not found binlog server replica", K(ret));
+    }
+  }
+
+  if (OB_SUCC(ret)) {
+    LOG_DEBUG("[ObMysqlTransact::handle_bl_lookup] chosen server, and begin to congestion lookup",
+                "addr", s.server_info_.addr_,
+                "attempts", s.current_.attempts_,
+                "sm_id", s.sm_->sm_id_);
+    if (OB_UNLIKELY(get_global_performance_params().enable_trace_)) {
+      s.sm_->milestones_.bl_process_end_ = get_based_hrtime(s);
+      s.sm_->cmd_time_stats_.bl_process_time_ +=
+        milestone_diff(s.sm_->milestones_.bl_process_begin_, s.sm_->milestones_.bl_process_end_);
+    }
+    // At present, binlog does not have high-availability features.
+    // After routing, it directly forwards and does not follow the disaster recovery management process.
+    TRANSACT_RETURN(SM_ACTION_OBSERVER_OPEN, ObMysqlTransact::handle_response);
+  }
+
+  if (OB_FAIL(ret)) {
+    s.inner_errcode_ = ret;
+    // disconnect
+    TRANSACT_RETURN(SM_ACTION_SEND_ERROR_NOOP, NULL);
+  }
+}
+
 } // end of namespace proxy
 } // end of namespace obproxy
 } // end of namespace oceanbase
diff --git a/src/obproxy/proxy/mysql/ob_mysql_transact.h b/src/obproxy/proxy/mysql/ob_mysql_transact.h
index feaf25dd..6a524295 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_transact.h
+++ b/src/obproxy/proxy/mysql/ob_mysql_transact.h
@@ -24,10 +24,12 @@
 #include "proxy/mysqllib/ob_mysql_config_processor.h"
 #include "proxy/route/ob_table_cache.h"
 #include "proxy/route/ob_server_route.h"
+#include "proxy/route/ob_tenant_server.h"
 #include "proxy/mysql/ob_mysql_proxy_port.h"
 #include "cmd/ob_show_sqlaudit_handler.h"
 #include "proxy/api/ob_transform.h"
 #include "proxy/mysqllib/ob_proxy_ob20_request.h"
+#include "lib/oblog/ob_simple_trace.h"
 
 namespace oceanbase
 {
@@ -68,6 +70,12 @@ class ObMysqlTransact
     MAYBE_ABORTED,
     ABORTED
   };
+  enum ObPLLookupState 
+  {
+    NEED_PL_LOOKUP = 0,
+    USE_LAST_SERVER_SESSION,
+    USE_COORDINATOR_SESSION
+  };
 
   enum ObMysqlTransactMagic
   {
@@ -84,6 +92,8 @@ class ObMysqlTransact
   };
 
   static common::ObString get_retry_status_string(const ObSSRetryStatus status);
+  static common::ObString get_pl_lookup_state_string(const ObPLLookupState state);
+
 
   // Please do not forget to fix ObServerState
   // (ob_api.h) in case of any modifications in
@@ -127,6 +137,8 @@ class ObMysqlTransact
     RESET_SESSION_VARS_COMMON_ERROR,
     // sync start trans related
     START_TRANS_COMMON_ERROR,
+    // sync xa start related
+    START_XA_START_ERROR,
     // sync database related
     SYNC_DATABASE_COMMON_ERROR,
     // sync com_stmt_prepare
@@ -143,7 +155,7 @@ class ObMysqlTransact
     REQUEST_READ_ONLY_ERROR,
     REQUEST_REROUTE_ERROR,
     STANDBY_WEAK_READONLY_ERROR,
-
+    TRANS_FREE_ROUTE_NOT_SUPPORTED_ERROR,
     // attention!! add error type between MIN_RESP_ERROR and MAX_RESP_ERROR
     MAX_RESP_ERROR
   };
@@ -183,6 +195,8 @@ class ObMysqlTransact
     SM_ACTION_API_SEND_RESPONSE,
     SM_ACTION_API_CMD_COMPLETE,
     SM_ACTION_API_SM_SHUTDOWN,
+
+    SM_ACTION_BINLOG_LOCATION_LOOKUP,
   };
 
   enum ObAttachDummyEntryType
@@ -267,12 +281,13 @@ class ObMysqlTransact
     SERVER_SEND_ALL_SESSION_VARS,
     SERVER_SEND_USE_DATABASE,
     SERVER_SEND_SESSION_VARS,
-    SERVER_SEND_LAST_INSERT_ID,
+    SERVER_SEND_SESSION_USER_VARS,
     SERVER_SEND_START_TRANS,
+    SERVER_SEND_XA_START,
     SERVER_SEND_REQUEST,
     SERVER_SEND_PREPARE,
     SERVER_SEND_SSL_REQUEST,
-    SERVER_SEND_TEXT_PS_PREPARE,
+    SERVER_SEND_TEXT_PS_PREPARE 
   };
 
   struct ObCurrentInfo
@@ -381,15 +396,11 @@ class ObMysqlTransact
     {
       return route_.get_next_avail_replica();
     }
-    const ObProxyReplicaLocation *get_next_replica(const uint32_t cur_ip, const uint16_t cur_port,
-        const bool is_force_retry)
-    {
-      return route_.get_next_replica(cur_ip, cur_port, is_force_retry);
-    }
     const ObProxyReplicaLocation *get_leader_replica_from_remote()
     {
       return route_.get_leader_replica_from_remote();
     }
+    void reset_consistency();
     void reset_pl();
     void reset();
 
@@ -481,11 +492,12 @@ class ObMysqlTransact
           sm_(NULL),
           mysql_config_params_(NULL),
           is_rerouted_(false),
-          need_pl_lookup_(false),
+          pl_lookup_state_ (NEED_PL_LOOKUP),
           is_auth_request_(false),
           is_trans_first_request_(false),
           is_proxysys_tenant_(false),
           is_hold_start_trans_(false),
+          is_hold_xa_start_(false),
           send_reqeust_direct_(false),
           source_(SOURCE_NONE),
           pre_transform_source_(SOURCE_NONE),
@@ -514,7 +526,8 @@ class ObMysqlTransact
           api_mysql_sm_shutdown_(false),
           api_server_addr_set_(false),
           need_retry_(true),
-          sqlaudit_record_queue_(NULL)
+          sqlaudit_record_queue_(NULL),
+          trace_log_()
     {
       memset(user_args_, 0, sizeof(user_args_));
     }
@@ -530,7 +543,7 @@ class ObMysqlTransact
         PROXY_TXN_LOG(WARN, "invalid argument", K(sm), K(ret));
       } else {
         sm_ = sm;
-        need_pl_lookup_ = true;
+        pl_lookup_state_ = NEED_PL_LOOKUP;
         current_stats_ = &first_stats_;
         trans_info_.reset();
       }
@@ -665,30 +678,19 @@ class ObMysqlTransact
       reroute_info_.reset();
 
       if (CMD_COMPLETE == current_.state_) {
-        if (!is_hold_start_trans_) {
+        if (!is_hold_start_trans_ && !is_hold_xa_start_) {
           is_trans_first_request_ = false;
         }
 
         if (obmysql::OB_MYSQL_COM_LOGIN == trans_info_.sql_cmd_) {
           is_auth_request_ = false;
         }
+        pll_info_.reset_consistency();
       } else if (TRANSACTION_COMPLETE == current_.state_) {
+        trace_log_.reset();
         is_trans_first_request_ = true;
         is_auth_request_ = false;
-
-        if (NULL != congestion_entry_) {
-          // if this trans succ, just set avlie this server;
-          if (!is_congestion_entry_updated_) {
-            congestion_entry_->set_alive_congested_free();
-          }
-          congestion_entry_->dec_ref();
-          congestion_entry_ = NULL;
-        }
-        is_congestion_entry_updated_ = false;
-        congestion_entry_not_exist_count_ = 0;
-        need_congestion_lookup_ = true;
-        congestion_lookup_success_ = false;
-        force_retry_congested_ = false;
+        reset_congestion_entry();
         mysql_errmsg_ = NULL;
         inner_errcode_ = 0;
         inner_errmsg_ = NULL;
@@ -708,6 +710,23 @@ class ObMysqlTransact
       } else { /* do nothing */ }
     }
 
+    void reset_congestion_entry()
+    {
+      if (NULL != congestion_entry_) {
+        // if this trans succ, just set alive this server;
+        if (!is_congestion_entry_updated_) {
+          congestion_entry_->set_alive_congested_free();
+        }
+        congestion_entry_->dec_ref();
+        congestion_entry_ = NULL;
+      }
+      is_congestion_entry_updated_ = false;
+      congestion_entry_not_exist_count_ = 0;
+      need_congestion_lookup_ = true;
+      congestion_lookup_success_ = false;
+      force_retry_congested_ = false;
+    }
+
     void destroy()
     {
       record_transaction_stats();
@@ -735,9 +754,11 @@ class ObMysqlTransact
 
     static bool is_for_update_sql(common::ObString src_sql);
     common::ObConsistencyLevel get_trans_consistency_level(ObClientSessionInfo &cs_info);
+    common::ObConsistencyLevel get_read_write_consistency_level(ObClientSessionInfo &session_info);
     bool is_request_readonly_zone_support(ObClientSessionInfo &cs_info);
     ObRoutePolicyEnum get_route_policy(ObMysqlClientSession &cs, const bool need_use_dup_replica);
     void get_route_policy(ObProxyRoutePolicyEnum policy, ObRoutePolicyEnum& ret_policy);
+    bool is_need_pl_lookup() { return pl_lookup_state_ == NEED_PL_LOOKUP; }
 
     event::ObFixedArenaAllocator<1024> arena_;
 
@@ -754,11 +775,13 @@ class ObMysqlTransact
     ObTransactInfo trans_info_;
 
     bool is_rerouted_;
-    bool need_pl_lookup_;
+    // determin if do pl lookup 
+    ObPLLookupState pl_lookup_state_;
     bool is_auth_request_;
     bool is_trans_first_request_;
     bool is_proxysys_tenant_;
     bool is_hold_start_trans_; // indicate whether hold begin(start transaction)
+    bool is_hold_xa_start_;
     bool send_reqeust_direct_; // when send sync all session variables, we can send user request directly
 
     ObSourceType source_;
@@ -803,6 +826,7 @@ class ObMysqlTransact
     bool need_retry_;
 
     ObSqlauditRecordQueue *sqlaudit_record_queue_;
+    common::ObSimpleTrace<4096> trace_log_;
 
   private:
     DISALLOW_COPY_AND_ASSIGN(ObTransState);
@@ -841,11 +865,13 @@ class ObMysqlTransact
 
   static void handle_error_jump(ObTransState &s);
   static void handle_internal_request(ObTransState &s);
+  static void handle_binlog_request(ObTransState &s);
   static void handle_server_addr_lookup(ObTransState &s);
   static void get_region_name_and_server_info(ObTransState &s,
                                               common::ObIArray<obutils::ObServerStateSimpleInfo> &simple_servers_info,
                                               common::ObIArray<common::ObString> &region_names);
   static void handle_pl_lookup(ObTransState &s);
+  static void handle_bl_lookup(ObTransState &s);
   static void modify_pl_lookup(ObTransState &s);
   static void handle_congestion_control_lookup(ObTransState &s);
   static void handle_congestion_entry_not_exist(ObTransState &s);
@@ -868,6 +894,7 @@ class ObMysqlTransact
 
   static bool is_dbmesh_pool_user(ObTransState &s);
   static bool is_internal_request(ObTransState &s);
+  static bool is_binlog_request(const ObTransState &s);
   static bool is_single_shard_db_table(ObTransState &s);
   static bool can_direct_ok_for_login(ObTransState &s);
   static bool is_in_trans(ObTransState &s);
@@ -876,15 +903,15 @@ class ObMysqlTransact
   static bool is_bad_route_request(ObTransState &s);
   static bool is_session_memory_overflow(ObTransState &s);
   static bool need_use_dup_replica(const common::ObConsistencyLevel level, ObTransState &s);
-  static bool need_pl_lookup(ObTransState &s);
-  static bool need_use_last_server_session(ObTransState &s);
+  static ObPLLookupState need_pl_lookup(ObTransState &s);
+  static bool need_use_coordinator_session(ObTransState &s);
   static bool is_db_reset(ObTransState &s);
   static bool need_server_session_lookup(ObTransState &s);
   static int64_t get_max_connect_attempts_from_replica(const int64_t replica_size);
   static int64_t get_max_connect_attempts(ObTransState &s);
 
   static int build_table_entry_request_packet(ObTransState &s, event::ObIOBufferReader *&reader);
-  static void handle_resultset_resp(ObTransState &s);
+  static void handle_resultset_resp(ObTransState &s, bool &is_user_request);
   static int fetch_table_entry_info(ObTransState &s);
 
   static ObClientSessionInfo &get_client_session_info(ObTransState &s);
@@ -896,8 +923,8 @@ class ObMysqlTransact
   static void handle_handshake_pkt(ObTransState &s);
   static int handle_oceanbase_handshake_pkt(ObTransState &s, uint32_t conn_id,
                                              ObAddr &client_addr);
-  static void handle_error_resp(ObTransState &s);
-  static void handle_ok_resp(ObTransState &s);
+  static void handle_error_resp(ObTransState &s, bool &is_user_request);
+  static void handle_ok_resp(ObTransState &s, bool &is_user_request);
   static void handle_db_reset(ObTransState &s);
   static void handle_first_response_packet(ObTransState &s);
 
@@ -920,6 +947,7 @@ class ObMysqlTransact
   static void handle_execute_succ(ObTransState &s);
   static int do_handle_execute_succ(ObTransState &s);
   static void handle_prepare_execute_succ(ObTransState &s);
+  static int do_handle_prepare_execute_xa_succ(event::ObIOBufferReader &buf_reader);
   static void handle_text_ps_prepare_succ(ObTransState &s);
   static int handle_text_ps_drop_succ(ObTransState &s, bool &is_user_request);
   static int handle_change_user_request_succ(ObTransState &s);
@@ -955,12 +983,17 @@ class ObMysqlTransact
   static const char *get_send_action_name(ObMysqlTransact::ObServerSendActionType type);
   static const char *get_server_resp_error_name(ObMysqlTransact::ObServerRespErrorType type);
 
-  static int64_t build_addr_from_ip_port(const uint32_t ip, const uint16_t port);
   static void get_ip_port_from_addr(const int64_t addr, uint32_t &ip, uint16_t &port);
   static void check_safe_read_snapshot(ObTransState &s);
 
   static bool is_need_reroute(ObMysqlTransact::ObTransState &s);
   static bool is_need_use_sql_table_cache(ObMysqlTransact::ObTransState &s);
+  static bool handle_set_trans_internal_routing(ObMysqlTransact::ObTransState &s, bool server_transaction_routing_flag);
+  static bool is_sql_able_to_route_participant_in_trans(obutils::ObSqlParseResult& base_sql_parse_result, obmysql::ObMySQLCmd  sql_cmd);
+  static bool is_trans_specified(ObTransState &s);
+  static bool has_dependent_func(ObTransState &s);
+  static void record_trans_state(ObTransState &s, bool is_in_trans);
+  static bool is_addr_logonly(const net::ObIpEndpoint &addr, const ObTenantServer *ts);
 };
 
 inline bool ObMysqlTransact::is_need_use_sql_table_cache(ObMysqlTransact::ObTransState &s)
@@ -974,20 +1007,6 @@ inline bool ObMysqlTransact::is_need_use_sql_table_cache(ObMysqlTransact::ObTran
 
 typedef void (*TransactEntryFunc)(ObMysqlTransact::ObTransState &s);
 
-inline bool ObMysqlTransact::is_in_trans(ObTransState &s)
-{
-  // if a trans is commit, the state will be set to TRANSACTION_COMPLETE,
-  // so if current state is CMD_COMPLETE, it means that we have send a sql successfully and
-  // the trans has not commit, that is to say "in trans"
-  // so far, there are three cases NOT in trans:
-  // 1. handshake response (login packet) need pl lookup
-  // 2. the first sql of one transaction
-  // 3. the second sql of one transaction, if the first sql is 'begin' or 'start transaction'
-  return (!s.is_auth_request_
-          && ObMysqlTransact::CMD_COMPLETE == s.current_.state_
-          && !s.is_hold_start_trans_);
-}
-
 inline bool ObMysqlTransact::is_user_trans_complete(ObTransState &s)
 {
   return (!s.is_trans_first_request_
@@ -998,7 +1017,7 @@ inline bool ObMysqlTransact::is_user_trans_complete(ObTransState &s)
 inline bool ObMysqlTransact::is_bad_route_request(ObTransState &s)
 {
   bool bret = false;
-  if (s.mysql_config_params_->enable_bad_route_reject_ && s.is_hold_start_trans_) {
+  if (s.mysql_config_params_->enable_bad_route_reject_ && (s.is_hold_start_trans_ || s.is_hold_xa_start_)) {
     obutils::ObSqlParseResult &parse_result = s.trans_info_.client_request_.get_parse_result();
     const ObString &table_name = parse_result.get_table_name();
     bret = table_name.empty();
@@ -1036,11 +1055,6 @@ inline int64_t ObMysqlTransact::get_max_connect_attempts_from_replica(const int6
   return (replica_size * 2 + 1);
 }
 
-inline int64_t ObMysqlTransact::get_max_connect_attempts(ObTransState &s)
-{
-  return std::max(s.mysql_config_params_->connect_observer_max_retries_,
-                  get_max_connect_attempts_from_replica(s.pll_info_.replica_size()));
-}
 
 inline bool ObMysqlTransact::is_in_auth_process(ObTransState &s)
 {
@@ -1087,6 +1101,11 @@ inline int64_t milestone_diff(const ObHRTime start, const ObHRTime end)
   return (start > 0 && end > start) ? (end - start) : 0;
 }
 
+inline void ObMysqlTransact::ObPartitionLookupInfo::reset_consistency()
+{
+  route_.set_consistency_level(common::INVALID_CONSISTENCY);
+}
+
 inline void ObMysqlTransact::ObPartitionLookupInfo::reset_pl()
 {
   route_.reset();
@@ -1129,11 +1148,16 @@ inline void ObMysqlTransact::update_sql_cmd(ObTransState &s)
 
     case SERVER_SEND_ALL_SESSION_VARS:
     case SERVER_SEND_SESSION_VARS:
-    case SERVER_SEND_LAST_INSERT_ID:
+    case SERVER_SEND_SESSION_USER_VARS:
     case SERVER_SEND_START_TRANS:
     case SERVER_SEND_TEXT_PS_PREPARE:
       s.trans_info_.sql_cmd_ = obmysql::OB_MYSQL_COM_QUERY;
       break;
+    
+    case SERVER_SEND_XA_START:
+      PROXY_TXN_LOG(DEBUG, "[ObMysqlTransact::update_sql_cmd] set s.trans_info_.sql_cmd OB_MYSQL_COM_STMT_PREPARE_EXECUTE for sync xa start");
+      s.trans_info_.sql_cmd_ = obmysql::OB_MYSQL_COM_STMT_PREPARE_EXECUTE;
+      break;
 
     case SERVER_SEND_PREPARE:
       s.trans_info_.sql_cmd_ = obmysql::OB_MYSQL_COM_STMT_PREPARE;
@@ -1177,9 +1201,23 @@ inline common::ObString ObMysqlTransact::get_retry_status_string(const ObSSRetry
   return common::ObString::make_string(str);
 }
 
-inline int64_t ObMysqlTransact::build_addr_from_ip_port(const uint32_t ip, const uint16_t port)
+inline common::ObString ObMysqlTransact::get_pl_lookup_state_string(const ObPLLookupState state)
 {
-  return (static_cast<int64_t>(port) << 32) | ip;
+  const char *str = "";
+  switch (state) {
+    case NEED_PL_LOOKUP:
+      str = "NEED_PL_LOOKUP";
+      break;
+    case USE_LAST_SERVER_SESSION:
+      str = "USE_LAST_SERVER_SESSION";
+      break;
+    case USE_COORDINATOR_SESSION:
+      str = "USE_COORDINATOR_SESSION";
+      break;
+    default:
+      str = "UNKNOWN";
+  }
+  return common::ObString::make_string(str);
 }
 
 inline void ObMysqlTransact::get_ip_port_from_addr(const int64_t addr, uint32_t &ip, uint16_t &port)
@@ -1190,6 +1228,28 @@ inline void ObMysqlTransact::get_ip_port_from_addr(const int64_t addr, uint32_t
   port = static_cast<uint16_t>((addr & PORT_MASK) >> 32);
 }
 
+inline bool ObMysqlTransact::is_addr_logonly(const net::ObIpEndpoint &addr, const ObTenantServer *ts)
+{
+  bool ret = false;
+  if (OB_ISNULL(ts)) {
+    ret = false;
+  } else {
+    int64_t cnt = ts->server_count_;
+    ObAddr tmp_addr;
+    tmp_addr.reset();
+    tmp_addr.set_sockaddr(addr.sa_);
+    for (int64_t i = 0; i < cnt; ++i) {
+      if (tmp_addr == ts->get_replica_location(i)->server_
+          && (common::REPLICA_TYPE_LOGONLY == ts->get_replica_location(i)->get_replica_type()
+              || common::REPLICA_TYPE_ENCRYPTION_LOGONLY == ts->get_replica_location(i)->get_replica_type())) {
+        ret = true;
+        break;
+      }
+    }
+  }
+  return ret;
+}
+
 } // end of namespace proxy
 } // end of namespace obproxy
 } // end of namespace oceanbase
diff --git a/src/obproxy/proxy/mysql/ob_mysql_tunnel.cpp b/src/obproxy/proxy/mysql/ob_mysql_tunnel.cpp
index 7cdcf90b..fa39e157 100644
--- a/src/obproxy/proxy/mysql/ob_mysql_tunnel.cpp
+++ b/src/obproxy/proxy/mysql/ob_mysql_tunnel.cpp
@@ -588,7 +588,8 @@ inline int ObMysqlTunnel::producer_handler_packet(int event, ObMysqlTunnelProduc
     case VC_EVENT_READ_COMPLETE:
     case MYSQL_TUNNEL_EVENT_PRECOMPLETE:
     case VC_EVENT_INACTIVITY_TIMEOUT:
-    case VC_EVENT_EOS: {
+    case VC_EVENT_EOS:
+    case VC_EVENT_DETECT_SERVER_DEAD: {
       p.packet_analyzer_.last_server_event_ = event;
 
       // If we couldn't understand the encoding, return an error
@@ -765,6 +766,7 @@ bool ObMysqlTunnel::producer_handler(int event, ObMysqlTunnelProducer &p)
     case VC_EVENT_ERROR:
     case VC_EVENT_ACTIVE_TIMEOUT:
     case VC_EVENT_INACTIVITY_TIMEOUT:
+    case VC_EVENT_DETECT_SERVER_DEAD:
     case MYSQL_TUNNEL_EVENT_CONSUMER_DETACH:
       p.alive_ = false;
       p.bytes_read_ = p.read_vio_->ndone_;
@@ -915,7 +917,8 @@ bool ObMysqlTunnel::consumer_handler(int event, ObMysqlTunnelConsumer &c)
     case VC_EVENT_EOS:
     case VC_EVENT_ERROR:
     case VC_EVENT_ACTIVE_TIMEOUT:
-    case VC_EVENT_INACTIVITY_TIMEOUT: {
+    case VC_EVENT_INACTIVITY_TIMEOUT:
+    case VC_EVENT_DETECT_SERVER_DEAD: {
       c.alive_ = false;
       c.bytes_written_ = c.write_vio_ ? c.write_vio_->ndone_ : 0;
 
diff --git a/src/obproxy/proxy/mysql/ob_prepare_statement_struct.cpp b/src/obproxy/proxy/mysql/ob_prepare_statement_struct.cpp
index ab925237..e60c7380 100644
--- a/src/obproxy/proxy/mysql/ob_prepare_statement_struct.cpp
+++ b/src/obproxy/proxy/mysql/ob_prepare_statement_struct.cpp
@@ -96,10 +96,8 @@ DEF_TO_STRING(ObTextPsNameEntry)
   return pos;
 }
 
-void ObBasePsEntry::destroy() {
-  if (NULL != ps_entry_cache_) {
-    ps_entry_cache_->delete_base_ps_entry(this);
-  }
+void ObBasePsEntry::destroy()
+{
   base_ps_parse_result_.reset();
 }
 
@@ -125,16 +123,22 @@ int ObPsIdAddrs::alloc_ps_id_addrs(uint32_t ps_id, const struct sockaddr &addr,
 int ObPsIdAddrs::add_addr(const struct sockaddr &socket_addr) {
   int ret = OB_SUCCESS;
   net::ObIpEndpoint addr(socket_addr);
-  if (OB_FAIL(addrs_.set_refactored(addr))) {
+  if (OB_FAIL(addrs_.push_back(addr))) {
     LOG_WARN("set refactored failed", K(addr), K(ret));
   }
   return ret;
 }
+
 int ObPsIdAddrs::remove_addr(const struct sockaddr &socket_addr) {
   int ret = OB_SUCCESS;
   net::ObIpEndpoint addr(socket_addr);
-  if (OB_FAIL(addrs_.erase_refactored(addr))) {
-    LOG_WARN("set refactored failed", K(addr), K(ret));
+  for(int64_t i = 0; OB_SUCC(ret) && i < addrs_.count(); i++) {
+    if (addr == addrs_.at(i)) {
+      if (OB_FAIL(addrs_.remove(i))) {
+        LOG_WARN("fail to remove", K(i), K(ret));
+      }
+      break;
+    }
   }
   return ret;
 }
@@ -217,40 +221,6 @@ int ObPsSqlMeta::set_param_type(const char *param_type, int64_t param_type_len)
   return ret;
 }
 
-int ObPsEntry::alloc_and_init_ps_entry(const ObString &ps_sql,
-                                       const ObSqlParseResult &parse_result,
-                                       ObPsEntry *&entry)
-{
-  int ret = OB_SUCCESS;
-  int64_t alloc_size = 0;
-  char *buf = NULL;
-
-  int64_t obj_size = sizeof(ObPsEntry);
-  int64_t sql_len = ps_sql.length() + PARSE_EXTRA_CHAR_NUM;
-
-  alloc_size += sizeof(ObPsEntry) + sql_len;
-  if (OB_ISNULL(buf = static_cast<char *>(op_fixed_mem_alloc(alloc_size)))) {
-    ret = OB_ALLOCATE_MEMORY_FAILED;
-    LOG_WARN("fail to alloc mem for ps entry", K(alloc_size), K(ret));
-  } else {
-    entry = new (buf) ObPsEntry();
-    if (OB_FAIL(entry->init(buf + obj_size, alloc_size - obj_size))) {
-      LOG_WARN("fail to init ps entry", K(ret));
-    } else if (OB_FAIL(entry->set_sql(ps_sql))) {
-      LOG_WARN("fail to set ps sql", K(ret));
-    } else {
-      entry->set_base_ps_parse_result(parse_result);
-    }
-  }
-
-  if (OB_FAIL(ret) && NULL != buf) {
-    op_fixed_mem_free(buf, alloc_size);
-    entry = NULL;
-    alloc_size = 0;
-  }
-  return ret;
-}
-
 int ObPsEntry::init(char *buf_start, int64_t buf_len)
 {
   int ret = OB_SUCCESS;
@@ -287,9 +257,17 @@ int ObPsEntry::set_sql(const ObString &ps_sql)
   return ret;
 }
 
+void ObPsEntry::free()
+{
+  if (NULL != ps_entry_cache_) {
+    ps_entry_cache_->delete_base_ps_entry(this);
+  }
+  destroy();
+}
+
 void ObPsEntry::destroy()
 {
-  LOG_INFO("ps entry will be destroyed", KPC(this));
+  LOG_DEBUG("ps entry will be destroyed", KPC(this));
   if (OB_LIKELY(is_inited_)) {
     ObBasePsEntry::destroy();
     is_inited_ = false;
@@ -300,96 +278,12 @@ void ObPsEntry::destroy()
   }
 }
 
-void ObBasePsEntryCache::destroy()
-{
-  ObBasePsEntryMap::iterator last = base_ps_map_.end();
-  ObBasePsEntryMap::iterator tmp_iter;
-  for (ObBasePsEntryMap::iterator base_ps_iter = base_ps_map_.begin(); base_ps_iter != last;) {
-    tmp_iter = base_ps_iter;
-    ++base_ps_iter;
-    tmp_iter->destroy();
-  }
-  base_ps_map_.reset();
-}
-
-int init_ps_entry_cache_for_thread()
-{
-  int ret = OB_SUCCESS;
-  const int64_t event_thread_count = g_event_processor.thread_count_for_type_[ET_CALL];
-  for (int64_t i = 0; i < event_thread_count && OB_SUCC(ret); ++i) {
-    if (OB_FAIL(init_ps_entry_cache_for_one_thread(i))) {
-      PROXY_NET_LOG(WARN, "fail to new ObBasePsEntryCache", K(i), K(ret));
-    }
-  }
-  return ret;
-}
-
-int init_text_ps_entry_cache_for_thread()
-{
-  int ret = OB_SUCCESS;
-  const int64_t event_thread_count = g_event_processor.thread_count_for_type_[ET_CALL];
-  for (int64_t i = 0; i < event_thread_count && OB_SUCC(ret); ++i) {
-    if (OB_FAIL(init_text_ps_entry_cache_for_one_thread(i))) {
-      PROXY_NET_LOG(WARN, "fail to new ObBasePsEntryCache", K(i), K(ret));
-    }
-  }
-  return ret;
-}
-
-int init_ps_entry_cache_for_one_thread(int64_t index)
+void ObGlobalPsEntry::free()
 {
-  int ret = OB_SUCCESS;
-  if (OB_ISNULL(g_event_processor.event_thread_[ET_CALL][index]->ps_entry_cache_
-    = new (std::nothrow) ObBasePsEntryCache())) {
-    ret = OB_ALLOCATE_MEMORY_FAILED;
-    PROXY_NET_LOG(WARN, "fail to new ObBasePsEntryCache", K(index), K(ret));
-  }
-  return ret;
-}
-
-int init_text_ps_entry_cache_for_one_thread(int64_t index)
-{
-  int ret = OB_SUCCESS;
-  if (OB_ISNULL(g_event_processor.event_thread_[ET_CALL][index]->text_ps_entry_cache_
-    = new (std::nothrow) ObBasePsEntryCache())) {
-    ret = OB_ALLOCATE_MEMORY_FAILED;
-    PROXY_NET_LOG(WARN, "fail to new ObBasePsEntryCache", K(index), K(ret));
-  }
-  return ret;
-}
-
-int ObTextPsEntry::alloc_and_init_text_ps_entry(const ObString &text_ps_sql,
-                                                const ObSqlParseResult &parse_result,
-                                                ObTextPsEntry *&entry)
-{
-  int ret = OB_SUCCESS;
-  int64_t alloc_size = 0;
-  char *buf = NULL;
-
-  int64_t obj_size = sizeof(ObTextPsEntry);
-  int64_t sql_len = text_ps_sql.length() + PARSE_EXTRA_CHAR_NUM;
-
-  alloc_size = obj_size + sql_len;
-  if (OB_ISNULL(buf = static_cast<char *>(op_fixed_mem_alloc(alloc_size)))) {
-    ret = OB_ALLOCATE_MEMORY_FAILED;
-    LOG_WARN("fail to alloc mem for text ps entry", K(alloc_size), K(ret));
-  } else {
-    entry = new (buf) ObTextPsEntry();
-    if (OB_FAIL(entry->init(buf + obj_size, alloc_size - obj_size, text_ps_sql))) {
-      ret = OB_ALLOCATE_MEMORY_FAILED;
-      LOG_WARN("fail to alloc mem for text ps entry", K(alloc_size), K(ret));
-    } else {
-      entry->set_base_ps_parse_result(parse_result);
-    }
-  }
-
-  if (OB_FAIL(ret) && NULL != buf) {
-    op_fixed_mem_free(buf, alloc_size);
-    entry = NULL;
-    alloc_size = 0;
+  LOG_DEBUG("global ps entry will be destroyed", KPC(this));
+  if (NULL != ps_entry_cache_) {
+    ps_entry_cache_->delete_base_ps_entry(this);
   }
-
-  return ret;
 }
 
 int ObTextPsEntry::init(char *buf_start, int64_t buf_len, const ObString &text_ps_sql)
@@ -419,6 +313,14 @@ int ObTextPsEntry::init(char *buf_start, int64_t buf_len, const ObString &text_p
   return ret;
 }
 
+void ObTextPsEntry::free()
+{
+  if (NULL != ps_entry_cache_) {
+    ps_entry_cache_->delete_base_ps_entry(this);
+  }
+  destroy();
+}
+
 void ObTextPsEntry::destroy()
 {
   LOG_INFO("text ps entry will be destroyed", KPC(this));
@@ -432,6 +334,14 @@ void ObTextPsEntry::destroy()
   }
 }
 
+void ObGlobalTextPsEntry::free()
+{
+  LOG_INFO("global text ps entry will be destroyed", KPC(this));
+  if (NULL != ps_entry_cache_) {
+    ps_entry_cache_->delete_base_ps_entry(this);
+  }
+}
+
 int ObTextPsNameEntry::alloc_text_ps_name_entry(const ObString &text_ps_name,
                                                 ObTextPsEntry *text_ps_entry,
                                                 ObTextPsNameEntry *&text_ps_name_entry)
@@ -466,6 +376,99 @@ void ObTextPsNameEntry::destroy()
   op_fixed_mem_free(this, total_len);
 }
 
+void ObBasePsEntryThreadCache::delete_base_ps_entry(ObBasePsEntry *base_ps_entry)
+{
+  ps_entry_thread_map_.remove(base_ps_entry);
+}
+
+void ObBasePsEntryThreadCache::destroy()
+{
+  ObBasePsEntryMap::iterator last = ps_entry_thread_map_.end();
+  ObBasePsEntryMap::iterator tmp_iter;
+  for (ObBasePsEntryMap::iterator base_ps_iter = ps_entry_thread_map_.begin(); base_ps_iter != last;) {
+    tmp_iter = base_ps_iter;
+    ++base_ps_iter;
+    tmp_iter->destroy();
+  }
+  ps_entry_thread_map_.reset();
+}
+
+void ObBasePsEntryGlobalCache::delete_base_ps_entry(ObBasePsEntry *base_ps_entry)
+{
+  common::DRWLock::WRLockGuard guard(lock_);
+  ps_entry_global_map_.remove(base_ps_entry);
+}
+
+void ObBasePsEntryGlobalCache::destroy()
+{
+  ObBasePsEntryGlobalMap::iterator last = ps_entry_global_map_.end();
+  ObBasePsEntryGlobalMap::iterator tmp_iter;
+  for (ObBasePsEntryGlobalMap::iterator base_ps_iter = ps_entry_global_map_.begin(); base_ps_iter != last;) {
+    tmp_iter = base_ps_iter;
+    ++base_ps_iter;
+    tmp_iter->destroy();
+  }
+  ps_entry_global_map_.reset();
+}
+
+int init_ps_entry_cache_for_thread()
+{
+  int ret = OB_SUCCESS;
+  const int64_t event_thread_count = g_event_processor.thread_count_for_type_[ET_CALL];
+  for (int64_t i = 0; i < event_thread_count && OB_SUCC(ret); ++i) {
+    if (OB_FAIL(init_ps_entry_cache_for_one_thread(i))) {
+      PROXY_NET_LOG(WARN, "fail to new ObBasePsEntryThreadCache", K(i), K(ret));
+    }
+  }
+  return ret;
+}
+
+int init_text_ps_entry_cache_for_thread()
+{
+  int ret = OB_SUCCESS;
+  const int64_t event_thread_count = g_event_processor.thread_count_for_type_[ET_CALL];
+  for (int64_t i = 0; i < event_thread_count && OB_SUCC(ret); ++i) {
+    if (OB_FAIL(init_text_ps_entry_cache_for_one_thread(i))) {
+      PROXY_NET_LOG(WARN, "fail to new ObBasePsEntryThreadCache", K(i), K(ret));
+    }
+  }
+  return ret;
+}
+
+int init_ps_entry_cache_for_one_thread(int64_t index)
+{
+  int ret = OB_SUCCESS;
+  if (OB_ISNULL(g_event_processor.event_thread_[ET_CALL][index]->ps_entry_cache_
+    = new (std::nothrow) ObBasePsEntryThreadCache())) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    PROXY_NET_LOG(WARN, "fail to new ObBasePsEntryThreadCache", K(index), K(ret));
+  }
+  return ret;
+}
+
+int init_text_ps_entry_cache_for_one_thread(int64_t index)
+{
+  int ret = OB_SUCCESS;
+  if (OB_ISNULL(g_event_processor.event_thread_[ET_CALL][index]->text_ps_entry_cache_
+    = new (std::nothrow) ObBasePsEntryThreadCache())) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    PROXY_NET_LOG(WARN, "fail to new ObBasePsEntryThreadCache", K(index), K(ret));
+  }
+  return ret;
+}
+
+ObBasePsEntryGlobalCache &get_global_ps_entry_cache()
+{
+  static ObBasePsEntryGlobalCache ps_entry_cache;
+  return ps_entry_cache;
+}
+
+ObBasePsEntryGlobalCache &get_global_text_ps_entry_cache()
+{
+  static ObBasePsEntryGlobalCache text_ps_entry_cache;
+  return text_ps_entry_cache;
+}
+
 } // end of namespace proxy
 } // end of namespace obproxy
 } // end of namespace oceanbase
diff --git a/src/obproxy/proxy/mysql/ob_prepare_statement_struct.h b/src/obproxy/proxy/mysql/ob_prepare_statement_struct.h
index 3e56d534..83fa44aa 100644
--- a/src/obproxy/proxy/mysql/ob_prepare_statement_struct.h
+++ b/src/obproxy/proxy/mysql/ob_prepare_statement_struct.h
@@ -45,19 +45,9 @@ class ObPsIdAddrs
   static const int BUCKET_SIZE = 8;
   static const int NODE_NUM = 8;
 
-  // use SimpleAllocer to save mem
-  typedef common::hash::ObHashSet<net::ObIpEndpoint,
-                                  common::hash::ReadWriteDefendMode,
-                                  common::hash::hash_func<net::ObIpEndpoint>,
-                                  common::hash::equal_to<net::ObIpEndpoint>,
-                                  common::hash::SimpleAllocer<common::hash::HashSetTypes<net::ObIpEndpoint>::AllocType, NODE_NUM>
-                                 > ADDR_HASH_SET;
-
   ObPsIdAddrs() : ps_id_(0), addrs_() {
-    addrs_.create(BUCKET_SIZE);
   }
   ObPsIdAddrs(uint32_t ps_id) : ps_id_(ps_id), addrs_() {
-    addrs_.create(BUCKET_SIZE);
   }
   ~ObPsIdAddrs() {};
 
@@ -65,13 +55,12 @@ class ObPsIdAddrs
   void destroy();
   int add_addr(const struct sockaddr &socket_addr);
   int remove_addr(const struct sockaddr &socket_addr);
-  ADDR_HASH_SET &get_addrs() { return addrs_; }
+  ObIArray<net::ObIpEndpoint> &get_addrs() { return addrs_; }
   int64_t to_string(char *buf, const int64_t buf_len) const;
 
 public:
   uint32_t ps_id_; // client ps id
-  ADDR_HASH_SET addrs_;
-
+  ObSEArray<net::ObIpEndpoint, 4> addrs_;
   LINK(ObPsIdAddrs, ps_id_addrs_link_);
 };
 
@@ -115,8 +104,7 @@ class ObBasePsEntry : public common::ObSharedRefCount
 
   const common::ObString &get_base_ps_sql() { return base_ps_sql_; }
 
-  virtual void free() { destroy(); }
-
+  virtual void free() {}
   virtual void destroy();
 
 public:
@@ -189,13 +177,14 @@ class ObPsEntry : public ObBasePsEntry
   ObPsEntry() : ObBasePsEntry() {}
   ~ObPsEntry() {}
 
+  template <typename T>
   static int alloc_and_init_ps_entry(const common::ObString &ps_sql,
                                      const obutils::ObSqlParseResult &parse_result,
-                                     ObPsEntry *&entry);
+                                     T *&entry);
   int init(char *buf_start, int64_t buf_len);
-  void destroy();
+  virtual void free();
+  virtual void destroy();
   int set_sql(const common::ObString &ps_sql);
-
   int64_t to_string(char *buf, const int64_t buf_len) const;
 
 private:
@@ -205,6 +194,61 @@ class ObPsEntry : public ObBasePsEntry
   DISALLOW_COPY_AND_ASSIGN(ObPsEntry);
 };
 
+class ObGlobalPsEntry : public ObPsEntry
+{
+public:
+  ObGlobalPsEntry() : ObPsEntry() {}
+  ~ObGlobalPsEntry() {}
+  virtual void free();
+  template <typename T>
+  static int alloc_and_init_ps_entry(const common::ObString &ps_sql,
+                                     const obutils::ObSqlParseResult &parse_result,
+                                     T *&entry);
+};
+
+template <typename T>
+int ObGlobalPsEntry::alloc_and_init_ps_entry(const ObString &ps_sql,
+                                             const obutils::ObSqlParseResult &parse_result,
+                                             T *&entry)
+{
+  return ObPsEntry::alloc_and_init_ps_entry(ps_sql, parse_result, entry);
+}
+
+template <typename T>
+int ObPsEntry::alloc_and_init_ps_entry(const ObString &ps_sql,
+                                       const obutils::ObSqlParseResult &parse_result,
+                                       T *&entry)
+{
+  int ret = OB_SUCCESS;
+  int64_t alloc_size = 0;
+  char *buf = NULL;
+
+  int64_t obj_size = sizeof(T);
+  int64_t sql_len = ps_sql.length() + PARSE_EXTRA_CHAR_NUM;
+
+  alloc_size += sizeof(T) + sql_len;
+  if (OB_ISNULL(buf = static_cast<char *>(op_fixed_mem_alloc(alloc_size)))) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    PROXY_SM_LOG(WARN, "fail to alloc mem for ps entry", K(alloc_size), K(ret));
+  } else {
+    entry = new (buf) T();
+    if (OB_FAIL(entry->init(buf + obj_size, alloc_size - obj_size))) {
+      PROXY_SM_LOG(WARN, "fail to init ps entry", K(ret));
+    } else if (OB_FAIL(entry->set_sql(ps_sql))) {
+      PROXY_SM_LOG(WARN, "fail to set ps sql", K(ret));
+    } else {
+      entry->set_base_ps_parse_result(parse_result);
+    }
+  }
+
+  if (OB_FAIL(ret) && NULL != buf) {
+    op_fixed_mem_free(buf, alloc_size);
+    entry = NULL;
+    alloc_size = 0;
+  }
+  return ret;
+}
+
 // stored in client session info
 class ObPsIdEntry
 {
@@ -212,7 +256,6 @@ class ObPsIdEntry
   ObPsIdEntry() : ps_id_(0), ps_entry_(NULL), ps_meta_() {}
   ObPsIdEntry(uint32_t client_id, ObPsEntry *entry)
       : ps_id_(client_id), ps_entry_(entry) {
-    ps_entry_->inc_ref();
   }
   ~ObPsIdEntry() {}
 
@@ -268,20 +311,77 @@ class ObPsIdPair
 class ObTextPsEntry : public ObBasePsEntry
 {
 public:
-  ObTextPsEntry() : ObBasePsEntry() {} 
-  ~ObTextPsEntry() { destroy(); }
+  ObTextPsEntry() : ObBasePsEntry() {}
+  ~ObTextPsEntry() { }
 
-  static int alloc_and_init_text_ps_entry(const common::ObString &sql,
-                                          const obutils::ObSqlParseResult &parse_result,
-                                          ObTextPsEntry *&entry);
+  template <typename T>
+  static int alloc_and_init_ps_entry(const common::ObString &sql,
+                                     const obutils::ObSqlParseResult &parse_result,
+                                     T *&entry);
   int init(char *buf_start, int64_t buf_len, const common::ObString &text_ps_sql);
-  void destroy();
+  virtual void free();
+  virtual void destroy();
   int64_t to_string(char *buf, const int64_t buf_len) const;
 
 private:
   DISALLOW_COPY_AND_ASSIGN(ObTextPsEntry);
 };
 
+template <typename T>
+int ObTextPsEntry::alloc_and_init_ps_entry(const ObString &text_ps_sql,
+                                           const obutils::ObSqlParseResult &parse_result,
+                                           T *&entry)
+{
+  int ret = OB_SUCCESS;
+  int64_t alloc_size = 0;
+  char *buf = NULL;
+
+  int64_t obj_size = sizeof(T);
+  int64_t sql_len = text_ps_sql.length() + PARSE_EXTRA_CHAR_NUM;
+
+  alloc_size = obj_size + sql_len;
+  if (OB_ISNULL(buf = static_cast<char *>(op_fixed_mem_alloc(alloc_size)))) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    PROXY_SM_LOG(WARN, "fail to alloc mem for text ps entry", K(alloc_size), K(ret));
+  } else {
+    entry = new (buf) T();
+    if (OB_FAIL(entry->init(buf + obj_size, alloc_size - obj_size, text_ps_sql))) {
+      ret = OB_ALLOCATE_MEMORY_FAILED;
+      PROXY_SM_LOG(WARN, "fail to alloc mem for text ps entry", K(alloc_size), K(ret));
+    } else {
+      entry->set_base_ps_parse_result(parse_result);
+    }
+  }
+
+  if (OB_FAIL(ret) && NULL != buf) {
+    op_fixed_mem_free(buf, alloc_size);
+    entry = NULL;
+    alloc_size = 0;
+  }
+
+  return ret;
+}
+
+class ObGlobalTextPsEntry : public ObTextPsEntry
+{
+public:
+  ObGlobalTextPsEntry() : ObTextPsEntry() {}
+  ~ObGlobalTextPsEntry() {}
+  virtual void free();
+  template <typename T>
+  static int alloc_and_init_ps_entry(const common::ObString &sql,
+                                     const obutils::ObSqlParseResult &parse_result,
+                                     T *&entry);
+};
+
+template <typename T>
+int ObGlobalTextPsEntry::alloc_and_init_ps_entry(const ObString &sql,
+                                                 const obutils::ObSqlParseResult &parse_result,
+                                                 T *&entry)
+{
+  return ObTextPsEntry::alloc_and_init_ps_entry(sql, parse_result, entry);
+}
+
 class ObTextPsNameEntry
 {
 public:
@@ -291,7 +391,6 @@ class ObTextPsNameEntry
   {
     text_ps_name_.assign_ptr(buf, static_cast<int32_t>(buf_len));
     text_ps_entry_ = entry;
-    text_ps_entry_->inc_ref();
   }
 
   static int alloc_text_ps_name_entry(const ObString &text_ps_name,
@@ -315,13 +414,28 @@ class ObTextPsNameEntry
 class ObBasePsEntryCache
 {
 public:
-  ObBasePsEntryCache() : base_ps_map_() {}
-  ~ObBasePsEntryCache() { destroy(); }
+  ObBasePsEntryCache() {}
+  virtual ~ObBasePsEntryCache() { destroy(); }
+  virtual void destroy() {}
+
+public:
+  virtual void delete_base_ps_entry(ObBasePsEntry *base_ps_entry) {
+    UNUSED(base_ps_entry);
+  }
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(ObBasePsEntryCache);
+};
+
+class ObBasePsEntryThreadCache : public ObBasePsEntryCache
+{
+public:
+  ObBasePsEntryThreadCache() : ObBasePsEntryCache(), ps_entry_thread_map_() {}
+  ~ObBasePsEntryThreadCache() { destroy(); }
   void destroy();
 
 public:
   static const int64_t HASH_BUCKET_SIZE = 64;
-
   struct ObBasePsEntryHashing
   {
     typedef const common::ObString &Key;
@@ -332,71 +446,210 @@ class ObBasePsEntryCache
     static Key key(Value const *value) { return value->base_ps_sql_;  }
     static bool equal(Key lhs, Key rhs) { return lhs == rhs;  }
   };
-
   typedef common::hash::ObBuildInHashMap<ObBasePsEntryHashing, HASH_BUCKET_SIZE> ObBasePsEntryMap;
 
 public:
-  int get_ps_entry(const common::ObString &sql, ObPsEntry *&ps_entry)
-  {
-    int ret = common::OB_SUCCESS;
-    ObBasePsEntry *tmp_entry = NULL;
-    if (OB_FAIL(base_ps_map_.get_refactored(sql, tmp_entry))) {
-      //do nothing
-    } else {
-      ps_entry = static_cast<ObPsEntry*>(tmp_entry);
-    }
-    return ret;
+  template <typename T>
+  int acquire_ps_entry(const common::ObString &sql, T *&ps_entry);
+
+  template <typename T>
+  int create_ps_entry(const common::ObString &sql,
+                      const obutils::ObSqlParseResult &parse_result,
+                      T *&ps_entry);
+
+  template <typename T>
+  int acquire_or_create_ps_entry(const common::ObString &sql,
+                                 const obutils::ObSqlParseResult &parse_result,
+                                 T *&ps_entry);
+
+  void delete_base_ps_entry(ObBasePsEntry *base_ps_entry);
+
+private:
+  ObBasePsEntryMap ps_entry_thread_map_;
+  DISALLOW_COPY_AND_ASSIGN(ObBasePsEntryThreadCache);
+};
+
+template <typename T>
+int ObBasePsEntryThreadCache::acquire_ps_entry(const ObString &sql, T *&ps_entry)
+{
+  int ret = OB_SUCCESS;
+  ObBasePsEntry *tmp_entry = NULL;
+  if (OB_FAIL(ps_entry_thread_map_.get_refactored(sql, tmp_entry))) {
+    //do nothing
+  } else {
+    ps_entry = static_cast<T*>(tmp_entry);
+    ps_entry->inc_ref();
   }
+  return ret;
+}
 
-  int set_ps_entry(ObPsEntry *ps_entry)
-  {
-    ObBasePsEntry *tmp_entry = static_cast<ObBasePsEntry*>(ps_entry);
-    tmp_entry->set_ps_entry_cache(this);
-    return base_ps_map_.unique_set(tmp_entry);
+template <typename T>
+int ObBasePsEntryThreadCache::create_ps_entry(const common::ObString &sql,
+                                        const obutils::ObSqlParseResult &parse_result,
+                                        T *&ps_entry)
+{
+  int ret = OB_SUCCESS;
+  ObBasePsEntry* tmp_ps_entry = NULL;
+  if (OB_FAIL(ps_entry_thread_map_.get_refactored(sql, tmp_ps_entry))) {
+    if (OB_HASH_NOT_EXIST == ret) {
+      if (OB_FAIL(T::alloc_and_init_ps_entry(sql, parse_result, ps_entry))) {
+        PROXY_SM_LOG(WARN, "fail to alloc and init ps entry", K(ret));
+      } else if (OB_FAIL(ps_entry_thread_map_.unique_set(ps_entry))) {
+        PROXY_SM_LOG(WARN, "fail to add ps entry to cache", K(ret));
+        if (OB_LIKELY(NULL != ps_entry)) {
+          ps_entry->destroy();
+          ps_entry = NULL;
+        }
+      } else {
+        ObBasePsEntry *tmp_entry = static_cast<ObBasePsEntry*>(ps_entry);
+        tmp_entry->set_ps_entry_cache(this);
+      }
+    }
+  } else {
+    ps_entry = static_cast<T*>(tmp_ps_entry);
   }
+  if (OB_SUCC(ret)) {
+    ps_entry->inc_ref();
+  }
+  return ret;
+}
 
-  int get_text_ps_entry(const common::ObString &sql, ObTextPsEntry *&text_ps_entry)
-  {
-    int ret = common::OB_SUCCESS;
-    ObBasePsEntry *tmp_entry = NULL;
-    if (OB_FAIL(base_ps_map_.get_refactored(sql, tmp_entry))) {
-      //do nothing
+template <typename T>
+int ObBasePsEntryThreadCache::acquire_or_create_ps_entry(const ObString &sql,
+                                                         const obutils::ObSqlParseResult &parse_result,
+                                                         T *&ps_entry)
+{
+  int ret = OB_SUCCESS;
+  if (OB_FAIL(acquire_ps_entry(sql, ps_entry))) {
+    if (OB_HASH_NOT_EXIST == ret) {
+      if (OB_FAIL(create_ps_entry(sql, parse_result, ps_entry))) {
+        PROXY_SM_LOG(WARN, "fail to create ps entry", K(sql), K(ret));
+      } else {
+        PROXY_SM_LOG(DEBUG, "succ to create ps entry", K(sql), KPC(ps_entry));
+      }
     } else {
-      text_ps_entry = static_cast<ObTextPsEntry*>(tmp_entry);
+      PROXY_SM_LOG(WARN, "fail to get ps entry", K(sql), K(ret));
     }
-    return ret;
   }
+  return ret;
+}
+
+class ObBasePsEntryGlobalCache : public ObBasePsEntryCache
+{
+public:
+  ObBasePsEntryGlobalCache() : ObBasePsEntryCache(), lock_(), ps_entry_global_map_() {}
+  ~ObBasePsEntryGlobalCache() { destroy(); }
+  void destroy();
 
-  int set_text_ps_entry(ObTextPsEntry *text_ps_entry)
+public:
+  static const int64_t HASH_BUCKET_SIZE = 64;  
+  struct ObBasePsEntryHashing
   {
-    ObBasePsEntry *tmp_entry = text_ps_entry;
-    tmp_entry->set_ps_entry_cache(this);
-    return base_ps_map_.unique_set(tmp_entry);
+    typedef const common::ObString &Key;
+    typedef ObBasePsEntry Value;
+    typedef ObDLList(ObBasePsEntry, base_ps_entry_link_) ListHead;
+
+    static uint64_t hash(Key key) { return key.hash();  }
+    static Key key(Value const *value) { return value->base_ps_sql_; }
+    static bool equal(Key lhs, Key rhs) { return lhs == rhs;  }
+    static int64_t inc_ref(Value* value) { return ATOMIC_AAF(&value->ref_count_, 1); }
+    static bool bcas_ref(Value* value, int64_t cmpv, int64_t newv) { return ATOMIC_BCAS(&value->ref_count_, cmpv, newv); }
+    static int64_t get_ref(Value* value) { return ATOMIC_LOAD(&value->ref_count_); }
+    static void destroy(Value* value) { value->destroy(); }
+  };
+  typedef common::hash::ObBuildInHashMapForRefCount<ObBasePsEntryHashing, HASH_BUCKET_SIZE> ObBasePsEntryGlobalMap;
+
+public:
+  template <typename T>
+  int acquire_ps_entry(const common::ObString &sql, T *&ps_entry);
+
+  template <typename T>
+  int create_ps_entry(const common::ObString &sql,
+                      const obutils::ObSqlParseResult &parse_result,
+                      T *&ps_entry);
+
+  template <typename T>
+  int acquire_or_create_ps_entry(const common::ObString &sql,
+                                 const obutils::ObSqlParseResult &parse_result,
+                                 T *&ps_entry);
+
+  void delete_base_ps_entry(ObBasePsEntry *base_ps_entry);
+
+private:
+  common::DRWLock lock_;
+  ObBasePsEntryGlobalMap ps_entry_global_map_;
+  DISALLOW_COPY_AND_ASSIGN(ObBasePsEntryGlobalCache);
+};
+
+template <typename T>
+int ObBasePsEntryGlobalCache::acquire_ps_entry(const ObString &sql, T *&ps_entry)
+{
+  int ret = OB_SUCCESS;
+  common::DRWLock::RDLockGuard guard(lock_);
+  ObBasePsEntry *tmp_entry = NULL;
+  if (OB_FAIL(ps_entry_global_map_.get_refactored(sql, tmp_entry))) {
+    //do nothing
+  } else {
+    ps_entry = static_cast<T*>(tmp_entry);
   }
+  return ret;
+}
 
-  int delete_text_ps_entry(ObTextPsEntry *text_ps_entry)
-  {
-    if (NULL != text_ps_entry) {
-      base_ps_map_.remove(text_ps_entry->base_ps_sql_);
-      text_ps_entry->destroy();
+template <typename T>
+int ObBasePsEntryGlobalCache::create_ps_entry(const common::ObString &sql,
+                                        const obutils::ObSqlParseResult &parse_result,
+                                        T *&ps_entry)
+{
+  int ret = OB_SUCCESS;
+  DRWLock::WRLockGuard guard(lock_);
+  ObBasePsEntry* tmp_ps_entry = NULL;
+  if (OB_FAIL(ps_entry_global_map_.get_refactored(sql, tmp_ps_entry))) {
+    if (OB_HASH_NOT_EXIST == ret) {
+      if (OB_FAIL(T::alloc_and_init_ps_entry(sql, parse_result, ps_entry))) {
+        PROXY_SM_LOG(WARN, "fail to alloc and init ps entry", K(ret));
+      } else if (OB_FAIL(ps_entry_global_map_.unique_set(ps_entry))) {
+        PROXY_SM_LOG(WARN, "fail to add ps entry to cache", K(ret));
+        if (OB_LIKELY(NULL != ps_entry)) {
+          ps_entry->destroy();
+          ps_entry = NULL;
+        }
+      } else {
+        ObBasePsEntry *tmp_entry = static_cast<ObBasePsEntry*>(ps_entry);
+        tmp_entry->set_ps_entry_cache(this);
+      }
     }
-    return common::OB_SUCCESS;
+  } else {
+    ps_entry = static_cast<T*>(tmp_ps_entry);
   }
+  return ret;
+}
 
-  void delete_base_ps_entry(ObBasePsEntry *base_ps_entry)
-  {
-    base_ps_map_.remove(base_ps_entry);
+template <typename T>
+int ObBasePsEntryGlobalCache::acquire_or_create_ps_entry(const ObString &sql,
+                                                         const obutils::ObSqlParseResult &parse_result,
+                                                         T *&ps_entry)
+{
+  int ret = OB_SUCCESS;
+  if (OB_FAIL(acquire_ps_entry(sql, ps_entry))) {
+    if (OB_HASH_NOT_EXIST == ret) {
+      if (OB_FAIL(create_ps_entry(sql, parse_result, ps_entry))) {
+        PROXY_SM_LOG(WARN, "fail to create ps entry", K(sql), K(ret));
+      } else {
+        PROXY_SM_LOG(DEBUG, "succ to create ps entry", K(sql), KPC(ps_entry));
+      }
+    } else {
+      PROXY_SM_LOG(WARN, "fail to get ps entry", K(sql), K(ret));
+    }
   }
-
-private:
-  ObBasePsEntryMap base_ps_map_;
-  DISALLOW_COPY_AND_ASSIGN(ObBasePsEntryCache);
-};
+  return ret;
+}
 
 int init_ps_entry_cache_for_thread();
 int init_ps_entry_cache_for_one_thread(int64_t index);
 int init_text_ps_entry_cache_for_thread();
 int init_text_ps_entry_cache_for_one_thread(int64_t index);
+ObBasePsEntryGlobalCache &get_global_ps_entry_cache();
+ObBasePsEntryGlobalCache &get_global_text_ps_entry_cache();
 
 } // end of namespace proxy
 } // end of namespace obproxy
diff --git a/src/obproxy/proxy/mysqllib/ob_2_0_protocol_struct.h b/src/obproxy/proxy/mysqllib/ob_2_0_protocol_struct.h
index a5b9251c..c0904b97 100644
--- a/src/obproxy/proxy/mysqllib/ob_2_0_protocol_struct.h
+++ b/src/obproxy/proxy/mysqllib/ob_2_0_protocol_struct.h
@@ -15,6 +15,8 @@
 
 #include "proxy/mysqllib/ob_mysql_common_define.h"
 #include "obutils/ob_proxy_buf.h"
+#include "lib/container/ob_se_array.h"
+#include "lib/string/ob_sql_string.h"
 
 namespace oceanbase
 {
@@ -54,6 +56,7 @@ union Ob20ProtocolFlags
   bool is_extra_info_exist() const { return 1 == st_flags_.OB_EXTRA_INFO_EXIST; }
   bool is_last_packet() const { return 1 == st_flags_.OB_IS_LAST_PACKET; }
   bool is_new_extra_info() const { return 1 == st_flags_.OB_IS_NEW_EXTRA_INFO; }
+  bool is_trans_internal_routing() const { return 1 == st_flags_.OB_IS_TRANS_INTERNAL_ROUTING; }
 
   uint32_t flags_;
   struct Protocol20Flags
@@ -62,40 +65,103 @@ union Ob20ProtocolFlags
     uint32_t OB_IS_LAST_PACKET:                         1;
     uint32_t OB_IS_PROXY_REROUTE:                       1;
     uint32_t OB_IS_NEW_EXTRA_INFO:                      1;
-    uint32_t OB_FLAG_RESERVED_NOT_USE:                 28;
+    uint32_t OB_IS_WEAK_READ:                           1;
+    uint32_t OB_IS_TRANS_INTERNAL_ROUTING:              1;
+    uint32_t OB_FLAG_RESERVED_NOT_USE:                 26;
   } st_flags_;
 };
 
+enum SessionSyncInfoType {
+  //SESSION_SYNC_USER_VAR,                // for user variables
+  SESSION_SYNC_APPLICATION_INFO = 0,      // for application info
+  SESSION_SYNC_APPLICATION_CONTEXT = 1,   // for app ctx
+  SESSION_SYNC_CLIENT_ID = 2,             // for client identifier
+  SESSION_SYNC_CONTROL_INFO = 3,          // for full trace link control info
+  SESSION_SYNC_SYS_VAR = 4,               // for system variables
+  SESSION_SYNC_TXN_STATIC_INFO = 5,       // 5: basic txn info
+  SESSION_SYNC_TXN_DYNAMIC_INFO = 6,      // 6: txn dynamic info
+  SESSION_SYNC_TXN_PARTICIPANTS_INFO = 7, // 7: txn dynamic info
+  SESSION_SYNC_TXN_EXTRA_INFO = 8,        // 8: txn dynamic info
+  SESSION_SYNC_MAX_TYPE,
+};
+
 struct Ob20ExtraInfo
 {
 public:
-  // for session info sync mechanism
-  bool is_exist_sess_info_;
-  obutils::ObVariableLenBuffer<32> extra_info_buf_;     // save total extra info kv
-  obutils::ObVariableLenBuffer<32> sess_info_buf_;      // save only session info
-  common::ObString sess_info_;
-
-  // ob20 info
-  uint32_t extra_len_;                // extra len in ob20 payload, if the flag.exist_extra_info
-
-public:
-  Ob20ExtraInfo() : is_exist_sess_info_(false), sess_info_(), extra_len_(0) {}
+  Ob20ExtraInfo() : is_exist_sess_info_(false), extra_info_buf_(), sess_info_buf_(),
+                    sess_info_count_(0), extra_len_(0), sess_info_length_(),
+                    sess_info_cur_idx_(0), sess_info_offset_(0) {}
   ~Ob20ExtraInfo() {}
   
   void reset() {
     is_exist_sess_info_ = false;
     extra_info_buf_.reset();
     sess_info_buf_.reset();
-    sess_info_.reset();
+    sess_info_count_ = 0;
     extra_len_ = 0;
+
+    sess_info_length_.reset();
+    sess_info_cur_idx_ = 0;
+    sess_info_offset_ = 0;
   }
-  
   inline bool exist_sess_info() const { return is_exist_sess_info_; }
-  inline common::ObString get_sess_info() const { return sess_info_; }
-  
-  TO_STRING_KV(K_(is_exist_sess_info), K_(sess_info), K_(extra_len));
+  inline uint32_t get_sess_info_count() { return sess_info_count_; }
+  inline int get_next_sess_info(common::ObString &sess_info);
+  void reset_sess_info_iterate_idx() { 
+    sess_info_cur_idx_ = 0;
+    sess_info_offset_ = 0;
+  }
+  int add_sess_info_buf(const char *str, const int64_t len);
+  TO_STRING_KV(K_(is_exist_sess_info), K_(sess_info_count), K_(extra_len));
+public:
+  // for session info sync mechanism
+  bool is_exist_sess_info_;
+  obutils::ObVariableLenBuffer<32> extra_info_buf_;     // save last packet extra info kv
+  common::ObSqlString sess_info_buf_;                   // save all sess info 
+  uint32_t sess_info_count_;
+  uint32_t extra_len_;                                 // extra len in ob20 payload, if the flag.exist_extra_info
+
+private:
+  // sess info iterator info
+  common::ObSEArray<uint64_t, 2> sess_info_length_;     
+  uint32_t sess_info_cur_idx_;
+  uint64_t sess_info_offset_;
 };
 
+int Ob20ExtraInfo::get_next_sess_info(common::ObString &sess_info)
+{
+  sess_info.reset();
+  int ret = common::OB_SUCCESS;
+  uint64_t length = sess_info_length_.at(sess_info_cur_idx_);
+  uint64_t buf_length = sess_info_buf_.length(); 
+  if (sess_info_offset_ + length > buf_length) {
+    ret = common::OB_ERR_UNEXPECTED;
+    PROXY_LOG(WARN, "unexpected length of sess info buffer", K(ret), K(sess_info_offset_), K(length));
+  } else {
+    sess_info.assign_ptr(sess_info_buf_.ptr() + sess_info_offset_, static_cast<int32_t>(length));
+    sess_info_offset_ += length;
+    sess_info_cur_idx_ ++;
+  }
+  return ret;
+}
+
+int Ob20ExtraInfo::add_sess_info_buf(const char *value, const int64_t len)
+{
+  int ret = common::OB_SUCCESS;
+  if (OB_UNLIKELY(NULL == value || 0 >= len)) {
+    ret = common::OB_INVALID_ARGUMENT;
+    PROXY_LOG(WARN, "invalid argument", K(value), K(len), K(ret));
+  } else if (OB_FAIL(sess_info_buf_.append(value, len))) {
+    PROXY_LOG(WARN, "fail to append sess info buf", K(value), K(len), K(ret));
+  } else if (OB_FAIL(sess_info_length_.push_back(len))) {
+    PROXY_LOG(WARN, "fail to record sess info buf length", K(ret));
+  } else {
+    is_exist_sess_info_ = true;
+    sess_info_count_++;
+  }
+  return ret;
+}
+
 class Ob20ProtocolHeader
 {
 public:
@@ -139,13 +205,22 @@ class Ob20ProtocolHeader
 // used for transfer function argument
 class Ob20ProtocolHeaderParam {
 public:
-  Ob20ProtocolHeaderParam() : connection_id_(0), request_id_(0), compressed_seq_(0), pkt_seq_(0),
-                              is_last_packet_(false), is_need_reroute_(false), is_new_extra_info_(false) {}
+  Ob20ProtocolHeaderParam() : connection_id_(0),
+                              request_id_(0),
+                              compressed_seq_(0),
+                              pkt_seq_(0),
+                              is_last_packet_(false),
+                              is_weak_read_(false),
+                              is_need_reroute_(false),
+                              is_new_extra_info_(false),
+                              is_trans_internal_routing_(false) {}
   Ob20ProtocolHeaderParam(uint32_t conn_id, uint32_t req_id, uint8_t compressed_seq, uint8_t pkt_seq,
-                          bool is_last_packet, bool is_need_reroute, bool is_new_extra_info)
+                          bool is_last_packet, bool is_weak_read, bool is_need_reroute,
+                          bool is_new_extra_info, bool is_trans_internal_routing)
                           : connection_id_(conn_id), request_id_(req_id), compressed_seq_(compressed_seq),
-                            pkt_seq_(pkt_seq), is_last_packet_(is_last_packet), is_need_reroute_(is_need_reroute),
-                            is_new_extra_info_(is_new_extra_info) {}
+                            pkt_seq_(pkt_seq), is_last_packet_(is_last_packet),
+                            is_weak_read_(is_weak_read), is_need_reroute_(is_need_reroute),
+                            is_new_extra_info_(is_new_extra_info), is_trans_internal_routing_(is_trans_internal_routing) {}
   ~Ob20ProtocolHeaderParam() {}
 
   Ob20ProtocolHeaderParam(const Ob20ProtocolHeaderParam &param) {
@@ -159,8 +234,10 @@ class Ob20ProtocolHeaderParam {
       compressed_seq_ = param.compressed_seq_;
       pkt_seq_ = param.pkt_seq_;
       is_last_packet_ = param.is_last_packet_;
+      is_weak_read_ = param.is_weak_read_;
       is_need_reroute_ = param.is_need_reroute_;
       is_new_extra_info_ = param.is_new_extra_info_;
+      is_trans_internal_routing_ = param.is_trans_internal_routing_;
     }
     return *this;
   }
@@ -170,27 +247,32 @@ class Ob20ProtocolHeaderParam {
   uint8_t get_compressed_seq() const { return compressed_seq_; }
   uint8_t get_pkt_seq() const { return pkt_seq_; }
   bool is_last_packet() const { return is_last_packet_; }
+  bool is_weak_read() const { return is_weak_read_; }
   bool is_need_reroute() const { return is_need_reroute_; }
   bool is_new_extra_info() const { return is_new_extra_info_; }
-
+  bool is_trans_internal_routing() const { return is_trans_internal_routing_; }
   void reset()
   {
     MEMSET(this, 0x0, sizeof(Ob20ProtocolHeaderParam));
     is_last_packet_ = false;
+    is_weak_read_ = false;
     is_need_reroute_ = false;
     is_new_extra_info_ = false;
+    is_trans_internal_routing_ = false;
   }
 
-  TO_STRING_KV(K_(connection_id), K_(request_id), K_(compressed_seq),
-               K_(pkt_seq), K_(is_last_packet), K_(is_need_reroute), K_(is_new_extra_info));
+  TO_STRING_KV(K_(connection_id), K_(request_id), K_(compressed_seq), K_(pkt_seq),
+               K_(is_last_packet), K_(is_need_reroute), K_(is_new_extra_info), K_(is_trans_internal_routing));
 private:
   uint32_t connection_id_;
   uint32_t request_id_;
   uint8_t compressed_seq_;
   uint8_t pkt_seq_;
   bool is_last_packet_;
+  bool is_weak_read_;
   bool is_need_reroute_;
   bool is_new_extra_info_;
+  bool is_trans_internal_routing_;
 };
 
 
diff --git a/src/obproxy/proxy/mysqllib/ob_2_0_protocol_utils.cpp b/src/obproxy/proxy/mysqllib/ob_2_0_protocol_utils.cpp
index 8650b26a..183a18a5 100644
--- a/src/obproxy/proxy/mysqllib/ob_2_0_protocol_utils.cpp
+++ b/src/obproxy/proxy/mysqllib/ob_2_0_protocol_utils.cpp
@@ -131,39 +131,6 @@ int ObProto20Utils::encode_err_packet(event::ObMIOBuffer &write_buf, const Ob20P
   return ret;
 }
 
-int ObProto20Utils::encode_executor_response_packet(event::ObMIOBuffer *write_buf,
-                                                    const Ob20ProtocolHeaderParam &ob20_head_param,
-                                                    uint8_t &seq, engine::ObProxyResultResp *result_resp)
-{
-  int ret = OB_SUCCESS;
-
-  event::ObIOBufferReader *tmp_mio_reader = NULL;
-  event::ObMIOBuffer *tmp_mio_buf = NULL;
-  
-  if (OB_ISNULL(tmp_mio_buf = new_empty_miobuffer(MYSQL_BUFFER_SIZE))) {
-    ret = common::OB_ALLOCATE_MEMORY_FAILED;
-    LOG_WARN("fail to alloc miobuffer", K(ret));
-  } else if (OB_ISNULL(tmp_mio_reader = tmp_mio_buf->alloc_reader())) {
-    ret = common::OB_ERR_UNEXPECTED;
-    LOG_WARN("fail to alloc reader", K(ret));
-  } else if (OB_FAIL(ObMysqlPacketUtil::encode_executor_response_packet(write_buf, seq, result_resp))) {
-    LOG_WARN("fail to encode err packet buf", K(ret));
-  } else if (OB_FAIL(ObProto20Utils::consume_and_compress_data(tmp_mio_reader, write_buf,
-                                                               tmp_mio_reader->read_avail(), ob20_head_param))) {
-    LOG_WARN("fail to consume and compress data for executor response packet in ob20", K(ret));
-  } else {
-    LOG_DEBUG("succ to executor response in ob20 packet");
-  }
-
-  if (OB_LIKELY(tmp_mio_buf != NULL)) {
-    free_miobuffer(tmp_mio_buf);
-    tmp_mio_buf = NULL;
-    tmp_mio_reader = NULL;
-  }
-  
-  return ret;
-}
-
 int ObProto20Utils::analyze_ok_packet_and_get_reroute_info(ObIOBufferReader *reader,
                                                            const int64_t pkt_len,
                                                            const ObMySQLCapabilityFlags &cap,
@@ -350,11 +317,11 @@ inline int ObProto20Utils::reserve_proto20_hdr(ObMIOBuffer *write_buf, char *&hd
 inline int ObProto20Utils::fill_proto20_header(char *hdr_start, const int64_t payload_len,
                                                const uint8_t compressed_seq, const uint8_t packet_seq,
                                                const uint32_t request_id, const uint32_t connid,
-                                               const bool is_last_packet, const bool is_need_reroute,
-                                               const bool is_extra_info_exist, const bool is_new_extra_info)
+                                               const bool is_last_packet, const bool is_weak_read,
+                                               const bool is_need_reroute, const bool is_extra_info_exist,
+                                               const bool is_new_extra_info, const bool is_trans_internal_routing)
 {
   int ret = OB_SUCCESS;
-
   //include compress header and ob20 header
   int64_t header_len = MYSQL_COMPRESSED_HEALDER_LENGTH + OB20_PROTOCOL_HEADER_LENGTH;
   //compress payload
@@ -366,7 +333,9 @@ inline int ObProto20Utils::fill_proto20_header(char *hdr_start, const int64_t pa
   flag.st_flags_.OB_EXTRA_INFO_EXIST = is_extra_info_exist ? 1 : 0;
   flag.st_flags_.OB_IS_LAST_PACKET = is_last_packet ? 1 : 0;
   flag.st_flags_.OB_IS_PROXY_REROUTE = is_need_reroute ? 1 : 0;
+  flag.st_flags_.OB_IS_WEAK_READ = is_weak_read ? 1 : 0;
   flag.st_flags_.OB_IS_NEW_EXTRA_INFO = is_new_extra_info ? 1 : 0;
+  flag.st_flags_.OB_IS_TRANS_INTERNAL_ROUTING = is_trans_internal_routing ? 1 : 0;
   uint16_t reserved = 0;
   uint16_t header_checksum = 0;
   int64_t pos = 0;
@@ -571,8 +540,9 @@ int ObProto20Utils::fill_proto20_new_extra_info(ObMIOBuffer *write_buf, const Ob
           } else if (OB_UNLIKELY(FLT_TYPE_AND_LEN != type_written_len)) {
             ret = OB_ERR_UNEXPECTED;
             LOG_WARN("unexpected check written len", K(ret), K(type_written_len));
-          } else if (OB_FAIL(write_buf->write(ptr, len, value_written_len))) {
-            LOG_WARN("fail to write obj value to buf", K(ret), K(obj_value));
+          } else if (OB_NOT_NULL(ptr) && len > 0
+              && OB_FAIL(write_buf->write(ptr, len, value_written_len))) {
+            LOG_WARN("fail to write obj value to buf", K(ret), K(obj_value), K(len), K(NULL == ptr), K(obj_key));
           } else if (OB_UNLIKELY(len != value_written_len)) {
             ret = OB_ERR_UNEXPECTED;
             LOG_WARN("unexpected check written len", K(ret), K(len), K(value_written_len));
@@ -667,15 +637,17 @@ int ObProto20Utils::consume_and_compress_data(ObIOBufferReader *reader,
   const uint32_t request_id = ob20_head_param.get_request_id();
   const uint32_t conn_id = ob20_head_param.get_connection_id();
   const bool is_last_packet = ob20_head_param.is_last_packet();
+  const bool is_weak_read = ob20_head_param.is_weak_read();
   const bool is_need_reroute = ob20_head_param.is_need_reroute();
   const bool is_new_extra_info = ob20_head_param.is_new_extra_info();
+  const bool is_trans_internal_routing = ob20_head_param.is_trans_internal_routing();
 
   if (OB_ISNULL(reader) || OB_ISNULL(write_buf) || data_len > reader->read_avail()) {
     ret = OB_INVALID_ARGUMENT;
     int64_t tmp_read_avail = ((NULL == reader) ? 0 : reader->read_avail());
     LOG_ERROR("invalid input value", K(reader), K(write_buf), K(data_len), K(compressed_seq),
-              K(packet_seq), K(request_id), K(conn_id), K(is_last_packet), K(is_need_reroute),
-              "read_avail", tmp_read_avail, K(ret));
+              K(packet_seq), K(request_id), K(conn_id), K(is_last_packet), K(is_weak_read), 
+              K(is_need_reroute), "read_avail", tmp_read_avail, K(ret));
   } else if (OB_FAIL(reserve_proto20_hdr(write_buf, hdr_start))) {
     LOG_ERROR("fail to reserve proto20 hdr", K(ret));
   } else if (OB_NOT_NULL(extra_info)
@@ -688,17 +660,22 @@ int ObProto20Utils::consume_and_compress_data(ObIOBufferReader *reader,
     LOG_ERROR("fail to fill proto20 tailer", K(crc64), K(ret));
   } else if (OB_FAIL(fill_proto20_header(hdr_start, payload_len, compressed_seq,
                                          packet_seq, request_id, conn_id,
-                                         is_last_packet, is_need_reroute,
-                                         is_extra_info_exist, is_new_extra_info))) {
+                                         is_last_packet, is_weak_read, is_need_reroute,
+                                         is_extra_info_exist, is_new_extra_info, is_trans_internal_routing))) {
     LOG_ERROR("fail to fill_proto20_header", K(payload_len), K(compressed_seq),
               K(packet_seq), K(request_id), K(conn_id), K(is_last_packet),
-              K(is_need_reroute), K(ret));
+              K(is_weak_read), K(is_need_reroute), K(ret));
   } else {
     LOG_DEBUG("build mysql compress packet with ob20 succ", "origin len", data_len, K(compressed_seq), K(crc64));
   }
   return ret;
 }
 
+bool ObProto20Utils::is_trans_related_sess_info(int16_t type)
+{
+  return SESSION_SYNC_TXN_STATIC_INFO <= type && type <= SESSION_SYNC_TXN_EXTRA_INFO;
+}
+
 int ObProxyTraceUtils::build_client_ip(ObIArray<ObObJKV> &extra_info,
                                        char *buf,
                                        int64_t buf_len,
@@ -742,26 +719,51 @@ int ObProxyTraceUtils::build_client_ip(ObIArray<ObObJKV> &extra_info,
 }
                                        
 int ObProxyTraceUtils::build_sync_sess_info(common::ObIArray<ObObJKV> &extra_info,
+                                            common::ObSqlString &info_value,
                                             common::hash::ObHashMap<int16_t, ObString> &sess_info_hash_map,
-                                            common::ObSqlString &info_value)
+                                            common::hash::ObHashMap<int16_t, int64_t> &client_sess_field_version,
+                                            common::hash::ObHashMap<int16_t, int64_t> &server_sess_field_version,
+                                            ObMysqlSM *sm)
 {
   int ret = OB_SUCCESS;
   ObObJKV ob_sess_info;
-
   ob_sess_info.key_.set_varchar(OB_V20_PRO_EXTRA_KV_NAME_SYNC_SESSION_INFO,
                                 static_cast<int32_t>(STRLEN(OB_V20_PRO_EXTRA_KV_NAME_SYNC_SESSION_INFO)));
   ob_sess_info.key_.set_default_collation_type();
 
-  common::hash::ObHashMap<int16_t, ObString>::iterator last = sess_info_hash_map.end();
-  common::hash::ObHashMap<int16_t, ObString>::iterator it = sess_info_hash_map.begin();
-  for (; it != last; ++it) {
-    info_value.append(it->second);
+  const int MAX_TYPE_RECORD = 32;
+  char type_record[MAX_TYPE_RECORD];
+  memset(type_record, '0', MAX_TYPE_RECORD);
+  bool is_sess_exist = false;
+
+  SessFieldHashMap::iterator last = sess_info_hash_map.end();
+  SessFieldHashMap::iterator it = sess_info_hash_map.begin();
+  for (; it != last && OB_SUCC(ret); ++it) {
+    int16_t sess_info_type = it->first;
+    int64_t client_version = 0;
+    int64_t server_version = 0;
+    if (OB_FAIL(ObProxyTraceUtils::get_sess_field_version(client_version , sess_info_type, client_sess_field_version))) {
+      LOG_WARN("fail to get client session field version", K(ret), K(sess_info_type));
+    } else if (OB_FAIL(ObProxyTraceUtils::get_sess_field_version(server_version , sess_info_type, server_sess_field_version))) {
+      LOG_WARN("fail to get server session field version", K(ret), K(sess_info_type));
+    } else if (client_version > server_version) {
+      is_sess_exist = true;
+      if (sess_info_type < MAX_TYPE_RECORD) {
+        type_record[sess_info_type] = '1';
+      }
+      info_value.append(it->second);
+    }
   }
-  ob_sess_info.value_.set_varchar(info_value.string());
-  ob_sess_info.value_.set_default_collation_type();
-
-  if (OB_FAIL(extra_info.push_back(ob_sess_info))) {
-    LOG_WARN("fail to push back", K(ret));
+  if (is_sess_exist) {
+    type_record[MAX_TYPE_RECORD - 1] = '\0';
+    sm->trans_state_.trace_log_.log_it("[send_sess]", "type", type_record);
+  }
+  if (OB_SUCC(ret)) {
+    ob_sess_info.value_.set_varchar(info_value.string());
+    ob_sess_info.value_.set_default_collation_type();
+    if (OB_FAIL(extra_info.push_back(ob_sess_info))) {
+      LOG_WARN("fail to push back", K(ret));
+    }
   }
   return ret;
 }
@@ -894,8 +896,13 @@ int ObProxyTraceUtils::build_related_extra_info_all(ObIArray<ObObJKV> &extra_inf
       if (!client_session->is_proxy_mysql_client_
           && client_info.need_reset_sess_info_vars(server_info)
           && is_last_packet) {
-        SessFieldHashMap& sess_info_hash_map = client_info.get_sess_info_map();
-        if (OB_FAIL(ObProxyTraceUtils::build_sync_sess_info(extra_info, sess_info_hash_map, sess_info_value))) {
+        SessFieldHashMap &sess_info_hash_map = client_info.get_sess_info_map();
+        LOG_DEBUG("send session info to server", "server addr", sm->trans_state_.server_info_.addr_);
+        if (OB_FAIL(ObProxyTraceUtils::build_sync_sess_info(extra_info, sess_info_value,
+                                                            sess_info_hash_map,
+                                                            client_info.get_sess_field_version(), 
+                                                            server_info.get_sess_field_version(),
+                                                            sm))) {
           LOG_WARN("fail to build sync sess info", K(ret));
         }
       }
@@ -905,6 +912,20 @@ int ObProxyTraceUtils::build_related_extra_info_all(ObIArray<ObObJKV> &extra_inf
   return ret;
 }
 
+int ObProxyTraceUtils::get_sess_field_version(int64_t &version, int16_t type, common::hash::ObHashMap<int16_t, int64_t> &map)
+{
+  int ret = OB_SUCCESS;
+  version = 0;
+  if (OB_FAIL(map.get_refactored(type, version))) {
+    if (OB_HASH_NOT_EXIST == ret) {
+      version = 0;
+      ret = OB_SUCCESS;
+    } else {
+      LOG_WARN("query session field version failed", K(type), K(ret));
+    }
+  }
+  return ret;
+}
 
 } // end of namespace proxy
 } // end of namespace obproxy
diff --git a/src/obproxy/proxy/mysqllib/ob_2_0_protocol_utils.h b/src/obproxy/proxy/mysqllib/ob_2_0_protocol_utils.h
index 0f4dbd8a..883917d7 100644
--- a/src/obproxy/proxy/mysqllib/ob_2_0_protocol_utils.h
+++ b/src/obproxy/proxy/mysqllib/ob_2_0_protocol_utils.h
@@ -54,9 +54,6 @@ class ObProto20Utils
                                  const uint16_t status_flag = 0);
   static int encode_err_packet(event::ObMIOBuffer &write_buf, const Ob20ProtocolHeaderParam &ob20_head_param,
                                uint8_t &seq, const int err_code, const ObString &msg_buf);
-  static int encode_executor_response_packet(event::ObMIOBuffer *write_buf,
-                                             const Ob20ProtocolHeaderParam &ob20_head_param,
-                                             uint8_t &seq, engine::ObProxyResultResp *result_resp);
   // analyze utils
   static int analyze_ok_packet_and_get_reroute_info(event::ObIOBufferReader *reader,
                                                     const int64_t pkt_len,
@@ -81,9 +78,11 @@ class ObProto20Utils
   static int fill_proto20_header(char *hdr_start, const int64_t payload_len,
                                  const uint8_t compressed_seq, const uint8_t packet_seq,
                                  const uint32_t request_id, const uint32_t connid,
-                                 const bool is_last_packet, const bool is_need_reroute,
-                                 const bool is_extra_info_exist, const bool is_new_extra_info);
+                                 const bool is_last_packet, const bool is_weak_read,
+                                 const bool is_need_reroute, const bool is_extra_info_exist,
+                                 const bool is_new_extra_info, const bool is_trans_internal_routing);
   static int reserve_proto20_hdr(event::ObMIOBuffer *write_buf, char *&hdr_start);
+  static bool is_trans_related_sess_info(int16_t type);
   
 private:
   inline static int analyze_compressed_packet_header(const char *start, const int64_t len,
@@ -107,12 +106,17 @@ class ObProxyTraceUtils
   static int build_extra_info_for_client(ObMysqlSM *sm, char *buf, const int64_t len,
                                          common::ObIArray<ObObJKV> &extra_info);
   static int build_sync_sess_info(common::ObIArray<ObObJKV> &extra_info,
-                                  common::hash::ObHashMap<int16_t, ObString>& sess_info_hash_map,
-                                  common::ObSqlString& info_value);
+                                  common::ObSqlString &info_value,
+                                  common::hash::ObHashMap<int16_t, ObString> &sess_info_hash_map,
+                                  common::hash::ObHashMap<int16_t, int64_t> &client_sess_field_version,
+                                  common::hash::ObHashMap<int16_t, int64_t> &server_sess_field_version,
+                                  ObMysqlSM *sm);
   static int build_related_extra_info_all(common::ObIArray<ObObJKV> &extra_info, ObMysqlSM *sm,
                                           char *ip_buf, const int64_t ip_buf_len,
                                           char *extra_info_buf, const int64_t extra_info_buf_len,
                                           common::ObSqlString &info_value, const bool is_last_packet);
+  static int get_sess_field_version(int64_t &version, int16_t type, common::hash::ObHashMap<int16_t, int64_t> &map);
+
 private:
   DISALLOW_COPY_AND_ASSIGN(ObProxyTraceUtils);
 };
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_common_define.h b/src/obproxy/proxy/mysqllib/ob_mysql_common_define.h
index e21ee9a6..76806ac1 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_common_define.h
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_common_define.h
@@ -176,17 +176,18 @@ bool is_supported_mysql_cmd(const obmysql::ObMySQLCmd mysql_cmd)
     // Stored Procedures
     case obmysql::OB_MYSQL_COM_STMT_FETCH:
     case obmysql::OB_MYSQL_COM_CHANGE_USER:
+    // binlog related
+    case obmysql::OB_MYSQL_COM_REGISTER_SLAVE:
+    case obmysql::OB_MYSQL_COM_BINLOG_DUMP:
+    case obmysql::OB_MYSQL_COM_BINLOG_DUMP_GTID:
     // pieceinfo
     case obmysql::OB_MYSQL_COM_STMT_SEND_PIECE_DATA:
     case obmysql::OB_MYSQL_COM_STMT_GET_PIECE_DATA:
       ret = true;
       break;
     // Replication Protocol
-    case obmysql::OB_MYSQL_COM_BINLOG_DUMP:
     case obmysql::OB_MYSQL_COM_TABLE_DUMP:
     case obmysql::OB_MYSQL_COM_CONNECT_OUT:
-    case obmysql::OB_MYSQL_COM_REGISTER_SLAVE:
-    case obmysql::OB_MYSQL_COM_BINLOG_DUMP_GTID:
     // Stored Procedures
     case obmysql::OB_MYSQL_COM_SET_OPTION:
       ret = false;
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_compress_ob20_analyzer.cpp b/src/obproxy/proxy/mysqllib/ob_mysql_compress_ob20_analyzer.cpp
index 97421777..b0e6fbc2 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_compress_ob20_analyzer.cpp
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_compress_ob20_analyzer.cpp
@@ -330,17 +330,10 @@ int ObMysqlCompressOB20Analyzer::do_obobj_extra_info_decode(const char *buf,
       LOG_DEBUG("deserialize extra info", K(key), K(value));
 
       if (0 == key.get_string().case_compare(OB_V20_PRO_EXTRA_KV_NAME_SYNC_SESSION_INFO)) {
-        extra_info.sess_info_buf_.reset();
         const char *value_ptr = value.get_string().ptr();
         const int64_t value_len = value.get_string().length();
-        if (OB_FAIL(extra_info.sess_info_buf_.init(value_len))) {
-          LOG_WARN("fail int alloc mem", K(value_len), K(ret));
-        } else if (OB_FAIL(extra_info.sess_info_buf_.write(value_ptr, value_len))) {
+        if (OB_FAIL(extra_info.add_sess_info_buf(value_ptr, value_len))) {
           LOG_WARN("fail to write sess info to buf", K(ret), K(value));
-        } else {
-          extra_info.sess_info_.assign_ptr(extra_info.sess_info_buf_.ptr(),
-                                           static_cast<int32_t>(extra_info.sess_info_buf_.len()));
-          extra_info.is_exist_sess_info_ = true;
         }
       } else if (0 == key.get_string().case_compare(OB_V20_PRO_EXTRA_KV_NAME_FULL_LINK_TRACE)) {
         int64_t full_pos = 0;
@@ -380,14 +373,8 @@ int ObMysqlCompressOB20Analyzer::do_new_extra_info_decode(const char *buf,
     } else {
       Ob20NewExtraInfoProtocolKeyType type = static_cast<Ob20NewExtraInfoProtocolKeyType>(key_type);
       if (type == SESS_INFO) {
-        extra_info.sess_info_buf_.reset();
-        if (OB_FAIL(extra_info.sess_info_buf_.init(key_len))) {
-          LOG_WARN("fail to init sess info buf", K(ret), K(key_len));
-        } else if (OB_FAIL(extra_info.sess_info_buf_.write(buf + pos, key_len))) {
+        if (OB_FAIL(extra_info.add_sess_info_buf(buf+pos, key_len))) {
           LOG_WARN("fail to write sess info buf", K(ret), K(key_len));
-        } else {
-          extra_info.sess_info_.assign_ptr(extra_info.sess_info_buf_.ptr(), key_len);
-          extra_info.is_exist_sess_info_ = true;
         }
       } else if (type == FULL_TRC) {
         int64_t full_pos = 0;
@@ -570,7 +557,7 @@ int ObMysqlCompressOB20Analyzer::analyze_last_compress_packet(
   } else if (OB_FAIL(decompress_data(start, len, resp))) {
     LOG_WARN("fail to decompress last mysql packet", K(ret));
   }
-
+  resp.get_analyze_result().is_server_trans_internal_routing_ = curr_compressed_ob20_header_.flag_.is_trans_internal_routing();
   return ret;
 }
 
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_compress_ob20_analyzer.h b/src/obproxy/proxy/mysqllib/ob_mysql_compress_ob20_analyzer.h
index 17d268a5..7fd1bdb7 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_compress_ob20_analyzer.h
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_compress_ob20_analyzer.h
@@ -54,7 +54,7 @@ class ObMysqlCompressOB20Analyzer : public ObMysqlCompressAnalyzer
   ObMysqlCompressOB20Analyzer()
     : ObMysqlCompressAnalyzer(), last_ob20_seq_(0), request_id_(0), sessid_(0), remain_head_checked_len_(0),
       extra_header_len_(0), extra_len_(0), extra_checked_len_(0), payload_checked_len_(0), tail_checked_len_(0),
-      ob20_analyzer_state_(OB20_ANALYZER_MAX), crc64_(0), curr_compressed_ob20_header_()
+      ob20_analyzer_state_(OB20_ANALYZER_MAX), crc64_(0), result_(), curr_compressed_ob20_header_()
     {}
   virtual ~ObMysqlCompressOB20Analyzer() { reset(); }
 
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_config_processor.cpp b/src/obproxy/proxy/mysqllib/ob_mysql_config_processor.cpp
index 1c5a2709..b693c595 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_config_processor.cpp
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_config_processor.cpp
@@ -74,6 +74,7 @@ ObMysqlConfigParams::ObMysqlConfigParams()
     task_thread_num_(0),
     block_thread_num_(0),
     grpc_thread_num_(0),
+    shard_scan_thread_num_(0),
     automatic_match_work_thread_(true),
 
     enable_congestion_(false),
@@ -86,6 +87,7 @@ ObMysqlConfigParams::ObMysqlConfigParams()
     enable_reroute_(false),
     enable_index_route_(false),
     enable_causal_order_read_(true),
+    enable_transaction_internal_routing_(true),
 
     sqlaudit_mem_limited_(0),
     internal_cmd_mem_limited_(0),
@@ -116,7 +118,9 @@ ObMysqlConfigParams::ObMysqlConfigParams()
     proxy_id_(0),
     client_max_memory_size_(0),
     enable_cpu_isolate_(false),
-    enable_primary_zone_(true)
+    enable_primary_zone_(true),
+    ip_listen_mode_(0),
+    local_bound_ipv6_ip_()
 {
   proxy_idc_name_[0] = '\0';
 }
@@ -169,6 +173,7 @@ int ObMysqlConfigParams::assign_config(const ObProxyConfig &proxy_config)
   CONFIG_ITEM_ASSIGN(task_thread_num);
   CONFIG_ITEM_ASSIGN(block_thread_num);
   CONFIG_ITEM_ASSIGN(grpc_thread_num);
+  CONFIG_ITEM_ASSIGN(shard_scan_thread_num);
   CONFIG_ITEM_ASSIGN(automatic_match_work_thread);
 
   CONFIG_ITEM_ASSIGN(enable_congestion);
@@ -178,6 +183,7 @@ int ObMysqlConfigParams::assign_config(const ObProxyConfig &proxy_config)
   CONFIG_ITEM_ASSIGN(enable_proxy_scramble);
   CONFIG_ITEM_ASSIGN(enable_compression_protocol);
   CONFIG_ITEM_ASSIGN(enable_ob_protocol_v2);
+  CONFIG_ITEM_ASSIGN(enable_transaction_internal_routing);
   CONFIG_ITEM_ASSIGN(enable_reroute);
   CONFIG_ITEM_ASSIGN(enable_index_route);
   CONFIG_ITEM_ASSIGN(enable_causal_order_read);
@@ -210,6 +216,7 @@ int ObMysqlConfigParams::assign_config(const ObProxyConfig &proxy_config)
   CONFIG_ITEM_ASSIGN(client_max_memory_size);
   CONFIG_ITEM_ASSIGN(enable_cpu_isolate);
   CONFIG_ITEM_ASSIGN(enable_primary_zone);
+  CONFIG_ITEM_ASSIGN(ip_listen_mode);
 
   if (OB_SUCC(ret)) {
     obsys::CRLockGuard guard(proxy_config.rwlock_);
@@ -255,6 +262,9 @@ int ObMysqlConfigParams::assign_config(const ObProxyConfig &proxy_config)
     if(OB_UNLIKELY(0 != local_bound_ip_.load(proxy_config.local_bound_ip))) {
       ret = OB_ERR_UNEXPECTED;
       LOG_WARN("fail to assign ip value", K(proxy_config.local_bound_ip.str()), K(ret));
+    } else if (OB_UNLIKELY(0 != local_bound_ipv6_ip_.load(proxy_config.local_bound_ipv6_ip))) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("fail to assign ipv6 value", K(proxy_config.local_bound_ipv6_ip.str()), K(ret));
     }
   }
 
@@ -308,7 +318,7 @@ DEF_TO_STRING(ObMysqlConfigParams)
   J_COMMA();
   J_KV(K_(short_async_task_timeout), K_(short_async_task_timeout), K_(min_congested_connect_timeout),
        K_(tenant_location_valid_time), K_(local_bound_ip), K_(listen_port), K_(stack_size), K_(work_thread_num),
-       K_(task_thread_num), K_(block_thread_num), K_(grpc_thread_num), K_(automatic_match_work_thread),
+       K_(task_thread_num), K_(block_thread_num), K_(grpc_thread_num), K_(shard_scan_thread_num), K_(automatic_match_work_thread),
        K_(enable_congestion), K_(enable_bad_route_reject), K_(test_server_addr),
        K_(sqlaudit_mem_limited), K_(max_connections), K_(client_max_connections),
        K_(enable_client_connection_lru_disconnect), K_(connect_observer_max_retries),
@@ -324,7 +334,8 @@ DEF_TO_STRING(ObMysqlConfigParams)
        K_(default_inactivity_timeout), K_(enable_partition_table_route), K_(enable_pl_route),
        K_(enable_cluster_checkout), K_(enable_client_ip_checkout), K_(enable_proxy_scramble),
        K_(enable_compression_protocol), K_(enable_ob_protocol_v2),
-       K_(enable_reroute), K_(enable_index_route), K_(enable_causal_order_read));
+       K_(enable_reroute), K_(enable_index_route), K_(enable_causal_order_read),
+       K_(ip_listen_mode), K_(local_bound_ipv6_ip));
   J_OBJ_END();
   return pos;
 }
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_config_processor.h b/src/obproxy/proxy/mysqllib/ob_mysql_config_processor.h
index 2ae3edbc..86020f9b 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_config_processor.h
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_config_processor.h
@@ -102,6 +102,7 @@ struct ObMysqlConfigParams : public ObConfigInfo
   CfgInt task_thread_num_;
   CfgInt block_thread_num_;
   CfgInt grpc_thread_num_;
+  CfgInt shard_scan_thread_num_;
   CfgBool automatic_match_work_thread_;
   CfgBool enable_congestion_;
   CfgBool enable_bad_route_reject_;
@@ -113,6 +114,7 @@ struct ObMysqlConfigParams : public ObConfigInfo
   CfgBool enable_reroute_;
   CfgBool enable_index_route_;
   CfgBool enable_causal_order_read_;
+  CfgBool enable_transaction_internal_routing_;
   CfgIpPortList test_server_addr_;
 
   CfgInt sqlaudit_mem_limited_;
@@ -145,6 +147,8 @@ struct ObMysqlConfigParams : public ObConfigInfo
   CfgInt client_max_memory_size_;
   CfgBool enable_cpu_isolate_;
   CfgBool enable_primary_zone_;
+  CfgInt ip_listen_mode_;
+  CfgIp local_bound_ipv6_ip_;
   char proxy_idc_name_[OB_PROXY_MAX_IDC_NAME_LENGTH + 1];
   char proxy_primary_zone_name_[common::MAX_ZONE_LENGTH + 1];
 };
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_ob20_packet_write.cpp b/src/obproxy/proxy/mysqllib/ob_mysql_ob20_packet_write.cpp
index ded4f502..ad197d8b 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_ob20_packet_write.cpp
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_ob20_packet_write.cpp
@@ -155,8 +155,10 @@ int ObMysqlOB20PacketWriter::write_request_packet(ObMIOBuffer &mio_buf,
                                                   const uint8_t compressed_seq,
                                                   const uint8_t pkt_seq,
                                                   bool is_last_packet,
+                                                  bool is_weak_read,
                                                   bool is_need_reroute,
                                                   bool is_new_extra_info,
+                                                  bool is_trans_internal_routing,
                                                   const common::ObIArray<ObObJKV> *extra_info)
 {
   int ret = OB_SUCCESS;
@@ -168,8 +170,9 @@ int ObMysqlOB20PacketWriter::write_request_packet(ObMIOBuffer &mio_buf,
     LOG_WARN("we cannot support packet which is larger than 16MB", K(sql_str),
              K(MYSQL_PACKET_MAX_LENGTH), K(ret));
   } else {
-    Ob20ProtocolHeaderParam ob20_head_param(conn_id, req_id, compressed_seq, pkt_seq, is_last_packet, is_need_reroute,
-                                            is_new_extra_info);
+    Ob20ProtocolHeaderParam ob20_head_param(conn_id, req_id, compressed_seq, pkt_seq, is_last_packet,
+                                            is_weak_read, is_need_reroute,
+                                            is_new_extra_info, is_trans_internal_routing);
     ObMySQLRawPacket com_pkt(cmd);
     com_pkt.set_content(sql_str.ptr(), static_cast<uint32_t>(sql_str.length()));
     if (OB_FAIL(ObMysqlOB20PacketWriter::write_compressed_packet(mio_buf, com_pkt, ob20_head_param, extra_info))) {
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_ob20_packet_write.h b/src/obproxy/proxy/mysqllib/ob_mysql_ob20_packet_write.h
index 82778e9f..f9ab9668 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_ob20_packet_write.h
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_ob20_packet_write.h
@@ -38,8 +38,8 @@ class ObMysqlOB20PacketWriter
   static int write_request_packet(event::ObMIOBuffer &mio_buf, const obmysql::ObMySQLCmd cmd,
                                   const common::ObString &sql_str, const uint32_t conn_id,
                                   const uint32_t req_id, const uint8_t compressed_seq,
-                                  const uint8_t pkt_seq, bool is_last_packet,
-                                  bool is_need_reroute, bool is_new_extra_info,
+                                  const uint8_t pkt_seq, bool is_last_packet, bool is_weak_read,
+                                  bool is_need_reroute, bool is_new_extra_info, bool is_trans_internal_routing,
                                   const common::ObIArray<ObObJKV> *extra_info = NULL);
   static int write_packet(event::ObMIOBuffer &mio_buf, const char *buf, const int64_t buf_len,
                           const Ob20ProtocolHeaderParam &ob20_head_param);
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_packet_rewriter.cpp b/src/obproxy/proxy/mysqllib/ob_mysql_packet_rewriter.cpp
index 1a08a57e..97233be2 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_packet_rewriter.cpp
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_packet_rewriter.cpp
@@ -132,7 +132,7 @@ int ObHandshakeResponseParam::write_client_addr_buf(const common::ObAddr &addr)
   int ret = OB_SUCCESS;
   if (OB_UNLIKELY(!addr.is_valid())) {
     //do not write
-  } else if (OB_UNLIKELY(!addr.ip_to_string(client_ip_buf_, OB_MAX_IP_BUF_LEN))) {
+  } else if (OB_UNLIKELY(!addr.ip_to_string(client_ip_buf_, MAX_IP_ADDR_LENGTH))) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("fail to ip_to_string", K(addr), K(ret));
   }
@@ -188,7 +188,7 @@ int ObMysqlPacketRewriter::rewrite_ok_packet(const OMPKOK &src_ok,
       if (OB_FAIL(des_ok.add_system_var(str_kv))) {
         LOG_WARN("fail to add system var while rewrite ok packet", K(ret));
       } else {
-        LOG_DEBUG("succ to add system var in ok packet", K(str_kv));
+        LOG_DEBUG("succ to add system var in ok packet back to client", K(str_kv), K(cap));
       }
     }
   }
@@ -239,13 +239,13 @@ int ObMysqlPacketRewriter::rewrite_handshake_response_packet(
   }
 
   // find client_ip
-  if (param.enable_client_ip_checkout_) {
+  if (RUN_MODE_PROXY == g_run_mode && param.enable_client_ip_checkout_) {
     ObStringKV string_kv;
     for (int64_t i = 0; OB_SUCC(ret) && i <  tg_hsr.get_connect_attrs().count(); ++i) {
       string_kv = tg_hsr.get_connect_attrs().at(i);
       if (0 == string_kv.key_.case_compare(OB_MYSQL_CLIENT_IP)) {
         if (!string_kv.value_.empty()) {
-          snprintf(param.client_ip_buf_, ObHandshakeResponseParam::OB_MAX_IP_BUF_LEN, "%.*s", string_kv.value_.length(), string_kv.value_.ptr());
+          snprintf(param.client_ip_buf_, MAX_IP_ADDR_LENGTH, "%.*s", string_kv.value_.length(), string_kv.value_.ptr());
         }
         break;
       }
@@ -254,6 +254,26 @@ int ObMysqlPacketRewriter::rewrite_handshake_response_packet(
 
   // reset before add
   tg_hsr.reset_connect_attr();
+  // add transparent transit conn attrs & find client_ip
+  OMPKHandshakeResponse &orig_hsr = orig_auth_req.get_hsr_result().response_;
+  bool find_client_ip = false;
+  for (int64_t i = 0; OB_SUCC(ret) && i < orig_hsr.get_connect_attrs().count(); ++i) {
+    ObStringKV kv;
+    // transit conn attrs OB_MYSQL_OB_CLIENT
+    if (OB_FAIL(orig_hsr.get_connect_attrs().at(i, kv))) {
+      LOG_WARN("fail access handshake response connect attrs", K(i), K(ret));
+    } else if (kv.key_.prefix_match(OB_MYSQL_OB_CLIENT)) {
+      if (OB_FAIL(tg_hsr.get_connect_attrs().push_back(kv))) {
+        LOG_WARN("fail push back transparent transmit connect attrs", K(kv), K(ret));
+      } else { /* succ */ }
+    } else if (!find_client_ip 
+                && param.enable_client_ip_checkout_
+                && 0 == kv.key_.case_compare(OB_MYSQL_CLIENT_IP)
+                && !kv.value_.empty()){ 
+      snprintf(param.client_ip_buf_, MAX_IP_ADDR_LENGTH, "%.*s", kv.value_.length(), kv.value_.ptr());
+      find_client_ip = true;
+    } else { /* do nothing */ }
+  }
   // 4. add obproxy specified connect attrs:
   // a. proxy_mode
   // b. connection id
@@ -281,9 +301,7 @@ int ObMysqlPacketRewriter::rewrite_handshake_response_packet(
     LOG_WARN("fail to add client ip", K(param.client_ip_buf_), K(ret));
   } else if (OB_FAIL(add_connect_attr(OB_MYSQL_PROXY_VERSION, param.proxy_version_buf_, tg_hsr))) {
     LOG_WARN("fail to add proxy version", K(param.proxy_version_buf_), K(ret));
-  } else {
-    //do nothing
-  }
+  } else { /* succ */ }
 
 
   return ret;
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_packet_rewriter.h b/src/obproxy/proxy/mysqllib/ob_mysql_packet_rewriter.h
index 1c75aa83..238ecbcf 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_packet_rewriter.h
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_packet_rewriter.h
@@ -64,7 +64,6 @@ struct ObHandshakeResponseParam
 
   static const int64_t OB_MAX_UINT32_BUF_LEN = 11; // string length of max uint32_t(2**32 - 1)
   static const int64_t OB_MAX_VERSION_BUF_LEN = 22; // string length of (xxx.xxx.xxx.xxx.xxx)
-  static const int64_t OB_MAX_IP_BUF_LEN = 20; // string length of (xxx.xxx.xxx.xxx.xxx)
 
   bool is_saved_login_;
   bool use_compress_;
@@ -81,7 +80,7 @@ struct ObHandshakeResponseParam
   char global_vars_version_buf_[OB_MAX_UINT64_BUF_LEN];
   char cap_buf_[OB_MAX_UINT64_BUF_LEN];
   char proxy_scramble_buf_[obmysql::OMPKHandshake::SCRAMBLE_TOTAL_SIZE];
-  char client_ip_buf_[OB_MAX_IP_BUF_LEN];
+  char client_ip_buf_[MAX_IP_ADDR_LENGTH];
   char cluster_id_buf_[OB_MAX_UINT64_BUF_LEN];
 
 private:
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_request_analyzer.cpp b/src/obproxy/proxy/mysqllib/ob_mysql_request_analyzer.cpp
index 1bd9891d..b95aa448 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_request_analyzer.cpp
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_request_analyzer.cpp
@@ -163,7 +163,8 @@ void ObMysqlRequestAnalyzer::analyze_request(const ObRequestAnalyzeCtx &ctx,
             && !client_request.is_sharding_user()
             && !client_request.is_proxysys_user()
             && !ctx.using_ldg_
-            && OB_MYSQL_COM_STMT_SEND_LONG_DATA != sql_cmd) {
+            && OB_MYSQL_COM_STMT_SEND_LONG_DATA != sql_cmd
+            && OB_MYSQL_COM_CHANGE_USER != sql_cmd) {
           if (OB_FAIL(do_analyze_request(ctx, sql_cmd, auth_request, client_request, is_oracle_mode))) {
             status = ANALYZE_ERROR;
             LOG_WARN("fail to dispatch mysql cmd", "analyze status",
@@ -371,6 +372,7 @@ void ObMysqlRequestAnalyzer::extract_fileds(const ObExprParseResult& result, ObP
 
 void ObMysqlRequestAnalyzer::extract_fileds(const ObExprParseResult& result, SqlFieldResult &sql_result)
 {
+  int ret = OB_SUCCESS;
   int64_t total_num = result.all_relation_info_.relation_num_;
   ObProxyRelationExpr* relation_expr = NULL;
   ObString name_str;
@@ -398,34 +400,43 @@ void ObMysqlRequestAnalyzer::extract_fileds(const ObExprParseResult& result, Sql
     }
     if (relation_expr->right_value_ != NULL) {
       ObProxyTokenNode *token = relation_expr->right_value_->head_;
-      SqlField field;
-      field.reset();
-      field.column_name_.set(name_str);
-      SqlColumnValue column_value;
-      while (NULL != token) {
-        switch(token->type_) {
-          case TOKEN_INT_VAL:
-            column_value.value_type_ = TOKEN_INT_VAL;
-            column_value.column_int_value_ = token->int_value_;
-            column_value.column_value_.set_integer(token->int_value_);
-            field.column_values_.push_back(column_value);
-            break;
-          case TOKEN_STR_VAL:
-            column_value.value_type_ = TOKEN_STR_VAL;
-            value_str.assign_ptr(token->str_value_.str_,
-                                 token->str_value_.str_len_);
-            column_value.column_value_.set(value_str);
-            field.column_values_.push_back(column_value);
-            break;
-          default:
-            LOG_DEBUG("invalid token type", "token type", get_obproxy_token_type(token->type_));
-            break;
+      SqlField* field = NULL;
+      if (OB_FAIL(SqlField::alloc_sql_field(field))) {
+        LOG_WARN("fail to alloc sql field", K(ret));
+      } else {
+        field->column_name_.set_value(name_str.length(), name_str.ptr());
+        SqlColumnValue column_value;
+        while (OB_SUCC(ret) && NULL != token) {
+          switch(token->type_) {
+            case TOKEN_INT_VAL:
+              column_value.value_type_ = TOKEN_INT_VAL;
+              column_value.column_int_value_ = token->int_value_;
+              column_value.column_value_.set_integer(token->int_value_);
+              if (OB_FAIL(field->column_values_.push_back(column_value))) {
+                LOG_WARN("fail to push column_value", K(ret));
+              }
+              break;
+            case TOKEN_STR_VAL:
+              column_value.value_type_ = TOKEN_STR_VAL;
+              value_str.assign_ptr(token->str_value_.str_,
+                  token->str_value_.str_len_);
+              column_value.column_value_.set_value(value_str);
+              if (OB_FAIL(field->column_values_.push_back(column_value))) {
+                LOG_WARN("fail to push back column_value", K(ret));
+              }
+              break;
+            default:
+              LOG_DEBUG("invalid token type", "token type", get_obproxy_token_type(token->type_));
+              break;
+          }
+          token = token->next_;
+        }
+        if (OB_SUCC(ret) && field->is_valid() && OB_SUCCESS == sql_result.fields_.push_back(field)) {
+          ++sql_result.field_num_;
+        } else {
+          field->reset();
+          field = NULL;
         }
-        token = token->next_;
-      }
-      if (field.is_valid()) {
-        sql_result.fields_.push_back(field);
-        ++sql_result.field_num_;
       }
     } else {
       LOG_WARN("right value is null");
@@ -467,7 +478,6 @@ int ObMysqlRequestAnalyzer::parse_sql_fileds(ObProxyMysqlRequest &client_request
       ObExprParser expr_parser(*allocator, parse_mode);
       ObString sql = client_request.get_sql();
       expr_result.part_key_info_.key_num_ = 0;
-      expr_result.target_mask_ = 0;
       ObString expr_sql = ObProxyMysqlRequest::get_expr_sql(sql, sql_parse_result.get_parsed_length());
       if (SELECT_STMT_PARSE_MODE == parse_mode) {
         const char *expr_sql_str = expr_sql.ptr();
@@ -542,6 +552,18 @@ inline int ObMysqlRequestAnalyzer::do_analyze_request(
               LOG_WARN("fail to parse sql", K(sql), K(ret));
             } else if (OB_FAIL(handle_internal_cmd(client_request))) {
               LOG_WARN("fail to handle internal cmd", K(sql), K(ret));
+            } else if (sql_parse_result.is_dual_request() 
+                       && OB_MYSQL_COM_STMT_PREPARE_EXECUTE == sql_cmd
+                       && get_global_proxy_config().enable_xa_route) {
+              // specically check if sql is xa start
+              // from obci only one format: select DBMS_XA.XA_START(?, ?) from dual
+              ObString tmp = sql;
+              tmp.split_on(' ');
+              ObString dbms_xa_start = tmp.split_on(' ').split_on('(').trim();
+              if (0 == dbms_xa_start.case_compare("DBMS_XA.XA_START")) {
+                sql_parse_result.set_xa_start_stmt(true);
+                LOG_DEBUG("[ObMysqlRequestAnalyzer::do_analyze_request] receive xa start req in prepare execute packet");
+              }
             }
           }
         } else {
@@ -574,20 +596,6 @@ inline int ObMysqlRequestAnalyzer::do_analyze_request(
       }
       break;
     }
-    case OB_MYSQL_COM_PING: {
-      // proxy handle mysql_ping() by itself
-      int64_t len = 0;
-      if (NULL == ctx.reader_) {
-        ret = OB_INVALID_ARGUMENT;
-        LOG_WARN("invalid buffer reader", K_(ctx.reader), K(ret));
-      } else if (MYSQL_NET_META_LENGTH != (len = ctx.reader_->read_avail())) {
-        ret = OB_INVALID_ARGUMENT;
-        LOG_WARN("buffer reader length is not equal to MYSQL_NET_META_LENGTH", K(len));
-        ObMysqlPacketReader reader;
-        reader.print_reader(*ctx.reader_);
-      }
-      break;
-    }
     case OB_MYSQL_COM_CHANGE_USER:
     case OB_MYSQL_COM_RESET_CONNECTION:
     case OB_MYSQL_COM_INIT_DB: {
@@ -621,6 +629,7 @@ inline int ObMysqlRequestAnalyzer::do_analyze_request(
         break;
       }
     }
+    case OB_MYSQL_COM_PING:
     case OB_MYSQL_COM_HANDSHAKE:
     case OB_MYSQL_COM_QUIT: {
       break;
@@ -733,7 +742,8 @@ int ObMysqlRequestAnalyzer::handle_internal_cmd(ObProxyMysqlRequest &client_requ
       parse_result.set_err_stmt_type(OBPROXY_T_ERR_NOT_SUPPORTED);
     }
     is_internal_cmd = true;
-  } else if (client_request.is_sharding_user() && parse_result.is_show_topology_stmt()) {
+  } else if (client_request.is_sharding_user() && (parse_result.is_show_topology_stmt() 
+                                                  || parse_result.is_show_elastic_id_stmt())) {
     is_internal_cmd = true;
   }
 
@@ -800,6 +810,16 @@ int ObMysqlRequestAnalyzer::analyze_execute_header(const int64_t param_num,
 int ObMysqlRequestAnalyzer::parse_param_type(const int64_t param_num,
                                              ObIArray<EMySQLFieldType> &param_types,
                                              const char *&buf, int64_t &data_len)
+{
+  ObSEArray<TypeInfo, 4> type_infos;
+  return parse_param_type(param_num, param_types, type_infos, buf, data_len);
+}
+
+// The default data of this method is complete and can only come in once
+int ObMysqlRequestAnalyzer::parse_param_type(const int64_t param_num,
+                                             ObIArray<EMySQLFieldType> &param_types,
+                                             ObIArray<TypeInfo> &type_infos,
+                                             const char *&buf, int64_t &data_len)
 {
   int ret = OB_SUCCESS;
 
@@ -813,10 +833,11 @@ int ObMysqlRequestAnalyzer::parse_param_type(const int64_t param_num,
       LOG_WARN("fail to get int1", K(data_len), K(ret));
     } else if (OB_FAIL(param_types.push_back(static_cast<EMySQLFieldType>(type)))) {
       LOG_WARN("fail to push back param type", K(type), K(ret));
+    } else if (OB_FAIL(type_infos.push_back(TypeInfo()))) {
+      LOG_WARN("fail to push back empty type info", K(ret));
     } else if (OB_MYSQL_TYPE_COMPLEX == type) {
-      TypeInfo type_name_info;
+      TypeInfo &type_name_info = type_infos.at(i);
       uint8_t elem_type = 0;
-      // skip all complex type bytes
       if (OB_FAIL(decode_type_info(buf, data_len, type_name_info))) {
         LOG_WARN("failed to decode type info", K(ret));
       } else if (type_name_info.type_name_.empty()) {
@@ -1047,9 +1068,8 @@ int ObMysqlRequestAnalyzer::analyze_send_long_data_param(ObProxyMysqlRequest &cl
           ret = OB_INVALID_ARGUMENT;
           LOG_WARN("fail to get param name from prepare result", K(ret), K(param_id), K(sql_result.field_num_));
         } else {
-          obutils::SqlField &field = sql_result.fields_.at(param_id);
-          param_name = field.column_name_.string_;
-
+          obutils::SqlField* field = sql_result.fields_.at(param_id);
+          param_name = field->column_name_.config_string_;
           ObProxyPartKeyInfo &key_info = part_info->get_part_key_info();
           for (uint64_t i = 0; i < key_info.key_num_; ++i) {
             ObProxyPartKey &part_key = key_info.part_keys_[i];
@@ -1134,7 +1154,6 @@ int ObMysqlRequestAnalyzer::parse_param_value(ObIAllocator &allocator,
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("invalid input value", K(data), K(ret));
   } else {
-    ObCollationType cs_type = ObCharset::get_default_collation(charset);
     switch (type) {
       case OB_MYSQL_TYPE_TINY: {
         int8_t value;
@@ -1211,10 +1230,13 @@ int ObMysqlRequestAnalyzer::parse_param_value(ObIAllocator &allocator,
       case OB_MYSQL_TYPE_VARCHAR:
       case OB_MYSQL_TYPE_VAR_STRING:
       case OB_MYSQL_TYPE_NEWDECIMAL:
-      case OB_MYSQL_TYPE_OB_UROWID: {
+      case OB_MYSQL_TYPE_OB_UROWID:
+      case OB_MYSQL_TYPE_JSON:
+      case OB_MYSQL_TYPE_GEOMETRY: {
         ObString str;
         ObString dst;
         uint64_t length = 0;
+        common::ObCollationType cs_type = common::ObCharset::get_default_collation(charset);
         if (OB_FAIL(ObMysqlPacketUtil::get_length(data, buf_len, length))) {
           LOG_ERROR("decode varchar param value failed", K(buf_len), K(ret));
         } else if (buf_len < length) {
@@ -1223,7 +1245,7 @@ int ObMysqlRequestAnalyzer::parse_param_value(ObIAllocator &allocator,
         } else {
           str.assign_ptr(data, static_cast<ObString::obstr_size_t>(length));
           if (OB_FAIL(ob_write_string(allocator, str, dst))) {
-            LOG_WARN("Failed to write str", K(ret));
+            LOG_WARN("failed to ob write string", K(ret));
           } else {
             if (OB_MYSQL_TYPE_NEWDECIMAL == type) {
               number::ObNumber nb;
@@ -1459,8 +1481,7 @@ int ObMysqlRequestAnalyzer::decode_type_info(const char*& buf, int64_t &buf_len,
     }
   }
   if (OB_SUCC(ret)) {
-    uint64_t version = 0;
-    if (OB_FAIL(ObMysqlPacketUtil::get_length(buf, buf_len, version))) {
+    if (OB_FAIL(ObMysqlPacketUtil::get_length(buf, buf_len, type_info.version_))) {
       LOG_WARN("failed to get version", K(ret));
     }
   }
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_request_analyzer.h b/src/obproxy/proxy/mysqllib/ob_mysql_request_analyzer.h
index dd3a6587..58c88db5 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_request_analyzer.h
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_request_analyzer.h
@@ -103,6 +103,11 @@ class ObMysqlRequestAnalyzer
                               common::ObIArray<obmysql::EMySQLFieldType> &param_types,
                               const char *&buf, int64_t &data_len);
 
+  static int parse_param_type(const int64_t param_num,
+                              common::ObIArray<obmysql::EMySQLFieldType> &param_types,
+                              common::ObIArray<obmysql::TypeInfo> &type_infos,
+                              const char *&buf, int64_t &data_len);
+
   static int parse_param_type_from_reader(int64_t& param_offset,
                                           const int64_t param_num,
                                           common::ObIArray<obmysql::EMySQLFieldType> &param_types,
@@ -136,16 +141,6 @@ class ObMysqlRequestAnalyzer
 
   static int analyze_sql_id(const ObString &sql, ObProxyMysqlRequest &client_request, common::ObString &sql_id);
 
-private:
-  struct TypeInfo {
-    TypeInfo() : relation_name_(), type_name_(), is_elem_type_(false) {} ;
-    common::ObString relation_name_;
-    common::ObString type_name_;
-    ObObjType elem_type_;
-    bool is_elem_type_;
-    TO_STRING_KV(K_(relation_name), K_(type_name), K_(elem_type), K_(is_elem_type));
-  };
-
 private:
   int get_payload_length(const char *buffer);
   int is_request_finished(const ObRequestBuffer &buff, bool &is_finish);
@@ -172,11 +167,11 @@ class ObMysqlRequestAnalyzer
                                          const char *&data, int64_t &buf_len, ObObj &param);
   static int parse_mysql_time_value(const char *&data, int64_t &buf_len, ObObj &param);
 
-  static int decode_type_info(const char*& buf, int64_t &buf_len, TypeInfo &type_info);
+  static int decode_type_info(const char*& buf, int64_t &buf_len, obmysql::TypeInfo &type_info);
 
   static int decode_type_info_from_reader(event::ObIOBufferReader* reader,
                                           int64_t &decoded_offset,
-                                          TypeInfo &type_info);
+                                          obmysql::TypeInfo &type_info);
 
   static int get_uint1_from_reader(event::ObIOBufferReader* reader,
                                    int64_t &decoded_offset,
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_request_builder.cpp b/src/obproxy/proxy/mysqllib/ob_mysql_request_builder.cpp
index 6e22ed9b..4d28b0d4 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_request_builder.cpp
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_request_builder.cpp
@@ -58,15 +58,19 @@ int ObMysqlRequestBuilder::build_database_sync_packet(ObMysqlSM *sm,
       uint8_t compressed_seq = 0;
       if (ObProxyProtocol::PROTOCOL_OB20 == ob_proxy_protocol) {
         ObSEArray<ObObJKV, 3> extra_info;
-        char extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
-        if (OB_FAIL(ObProxyTraceUtils::build_extra_info_for_server(sm, extra_info_buf, SERVER_EXTRA_INFO_BUF_MAX_LEN,
-                                                                   extra_info, true))) {
-          LOG_WARN("fail to build extra info for server", K(ret));
+        ObSqlString sess_info_value;
+        char client_ip_buf[MAX_IP_BUFFER_LEN] = "\0";
+        char server_extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
+        if (OB_FAIL(ObProxyTraceUtils::build_related_extra_info_all(extra_info, sm,
+                      client_ip_buf, MAX_IP_BUFFER_LEN, server_extra_info_buf, SERVER_EXTRA_INFO_BUF_MAX_LEN,
+                      sess_info_value, true))) {
+          LOG_WARN("fail to build related extra info", K(ret));
         } else if (OB_FAIL(ObMysqlOB20PacketWriter::write_request_packet(mio_buf, cmd, db_name,
                                                                          server_session->get_server_sessid(),
                                                                          server_session->get_next_server_request_id(),
-                                                                         compressed_seq, compressed_seq, true, false,
+                                                                         compressed_seq, compressed_seq, true, false, false,
                                                                          server_info.is_new_extra_info_supported(),
+                                                                         sm->get_client_session()->is_trans_internal_routing(),
                                                                          &extra_info))) {
           LOG_WARN("fail to write request packet in ob20", K(ret));
         } else { /* nothing */ }
@@ -102,16 +106,20 @@ int ObMysqlRequestBuilder::build_all_session_vars_sync_packet(ObMysqlSM *sm,
   } else {
     uint8_t compressed_seq = 0;
     if (ObProxyProtocol::PROTOCOL_OB20 == ob_proxy_protocol) {
-      ObSEArray<ObObJKV, 1> extra_info;
-      char extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
-      if (OB_FAIL(ObProxyTraceUtils::build_extra_info_for_server(sm, extra_info_buf, SERVER_EXTRA_INFO_BUF_MAX_LEN,
-                                                                 extra_info, true))) {
-        LOG_WARN("fail to build extra info for server", K(ret));
+      ObSEArray<ObObJKV, 3> extra_info;
+      ObSqlString sess_info_value;
+      char client_ip_buf[MAX_IP_BUFFER_LEN] = "\0";
+      char server_extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
+      if (OB_FAIL(ObProxyTraceUtils::build_related_extra_info_all(extra_info, sm,
+                    client_ip_buf, MAX_IP_BUFFER_LEN, server_extra_info_buf, SERVER_EXTRA_INFO_BUF_MAX_LEN,
+                    sess_info_value, true))) {
+        LOG_WARN("fail to build related extra info", K(ret));
       } else if (OB_FAIL(ObMysqlOB20PacketWriter::write_request_packet(mio_buf, cmd, reset_sql.string(),
                                                                        server_session->get_server_sessid(),
                                                                        server_session->get_next_server_request_id(),
-                                                                       compressed_seq, compressed_seq, true, false,
+                                                                       compressed_seq, compressed_seq, true, false, false,
                                                                        server_info.is_new_extra_info_supported(),
+                                                                       sm->get_client_session()->is_trans_internal_routing(),
                                                                        &extra_info))) {
         LOG_WARN("fail to write request packet in ob20", K(ret));
       } else { /* nothing */ }
@@ -148,16 +156,20 @@ int ObMysqlRequestBuilder::build_session_vars_sync_packet(ObMysqlSM *sm,
   } else {
     uint8_t compressed_seq = 0;
     if (ObProxyProtocol::PROTOCOL_OB20 == ob_proxy_protocol) {
-      ObSEArray<ObObJKV, 1> extra_info;
-      char extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
-      if (OB_FAIL(ObProxyTraceUtils::build_extra_info_for_server(sm, extra_info_buf, SERVER_EXTRA_INFO_BUF_MAX_LEN,
-                                                                 extra_info, true))) {
-        LOG_WARN("fail to build extra info for server", K(ret));
+        ObSEArray<ObObJKV, 3> extra_info;
+        ObSqlString sess_info_value;
+        char client_ip_buf[MAX_IP_BUFFER_LEN] = "\0";
+        char server_extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
+        if (OB_FAIL(ObProxyTraceUtils::build_related_extra_info_all(extra_info, sm,
+                      client_ip_buf, MAX_IP_BUFFER_LEN, server_extra_info_buf, SERVER_EXTRA_INFO_BUF_MAX_LEN,
+                      sess_info_value, true))) {
+          LOG_WARN("fail to build related extra info", K(ret));
       } else if (OB_FAIL(ObMysqlOB20PacketWriter::write_request_packet(mio_buf, cmd, reset_sql.string(),
                                                                       server_session->get_server_sessid(),
                                                                       server_session->get_next_server_request_id(),
-                                                                      compressed_seq, compressed_seq, true, false,
-                                                                      server_info.is_new_extra_info_supported(),
+                                                                      compressed_seq, compressed_seq, true, false, false,
+                                                                      server_info.is_new_extra_info_supported(), 
+                                                                      sm->get_client_session()->is_trans_internal_routing(),
                                                                       &extra_info))) {
         LOG_WARN("fail to write request packet in ob20", K(ret));
       } else { /* nothing */ }
@@ -177,32 +189,36 @@ int ObMysqlRequestBuilder::build_session_vars_sync_packet(ObMysqlSM *sm,
   return ret;
 }
 
-int ObMysqlRequestBuilder::build_last_insert_id_sync_packet(ObMysqlSM *sm,
-                                                            ObMIOBuffer &mio_buf,
-                                                            ObClientSessionInfo &client_info,
-                                                            ObMysqlServerSession *server_session,
-                                                            const ObProxyProtocol ob_proxy_protocol)
+int ObMysqlRequestBuilder::build_session_user_vars_sync_packet(ObMysqlSM *sm,
+                                                               ObMIOBuffer &mio_buf,
+                                                               ObClientSessionInfo &client_info,
+                                                               ObMysqlServerSession *server_session,
+                                                               const ObProxyProtocol ob_proxy_protocol)
 {
   int ret = OB_SUCCESS;
   ObMySQLCmd cmd = OB_MYSQL_COM_QUERY;
   ObSqlString reset_sql;
   ObServerSessionInfo &server_info = server_session->get_session_info();
-  if (OB_FAIL(client_info.extract_last_insert_id_reset_sql(server_info, reset_sql))) {
-    LOG_WARN("fail to extract last_insert_id variable reset sql", K(ret));
+  if (OB_FAIL(client_info.extract_user_variable_reset_sql(server_info, reset_sql))) {
+    LOG_WARN("fail to extract variable reset sql", K(ret));
   } else {
     uint8_t compressed_seq = 0;
     if (ObProxyProtocol::PROTOCOL_OB20 == ob_proxy_protocol) {
-      ObSEArray<ObObJKV, 1> extra_info;
-      char extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
-      if (OB_FAIL(ObProxyTraceUtils::build_extra_info_for_server(sm, extra_info_buf, SERVER_EXTRA_INFO_BUF_MAX_LEN,
-                                                                 extra_info, true))) {
+        ObSEArray<ObObJKV, 3> extra_info;
+        ObSqlString sess_info_value;
+        char client_ip_buf[MAX_IP_BUFFER_LEN] = "\0";
+        char server_extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
+        if (OB_FAIL(ObProxyTraceUtils::build_related_extra_info_all(extra_info, sm,
+                      client_ip_buf, MAX_IP_BUFFER_LEN, server_extra_info_buf, SERVER_EXTRA_INFO_BUF_MAX_LEN,
+                      sess_info_value, true))) {
         LOG_WARN("fail to build extra info for server", K(ret));
       } else if (OB_FAIL(ObMysqlOB20PacketWriter::write_request_packet(mio_buf, cmd, reset_sql.string(),
-                                                                       server_session->get_server_sessid(),
-                                                                       server_session->get_next_server_request_id(),
-                                                                       compressed_seq, compressed_seq, true, false,
-                                                                       server_info.is_new_extra_info_supported(),
-                                                                       &extra_info))) {
+                                                                      server_session->get_server_sessid(),
+                                                                      server_session->get_next_server_request_id(),
+                                                                      compressed_seq, compressed_seq,  true, false, false,
+                                                                      server_info.is_new_extra_info_supported(),
+                                                                      sm->get_client_session()->is_trans_internal_routing(),
+                                                                      &extra_info))) {
         LOG_WARN("fail to write request packet in ob20", K(ret));
       } else { /* nothing */ }
     } else {
@@ -213,12 +229,11 @@ int ObMysqlRequestBuilder::build_last_insert_id_sync_packet(ObMysqlSM *sm,
 
     if (OB_SUCC(ret)) {
       server_session->set_compressed_seq(compressed_seq);
-      LOG_DEBUG("will sync last_insert_id variable", K(reset_sql));
+      LOG_DEBUG("will sync session user variables", K(reset_sql));
     } else {
       LOG_WARN("fail to write packet", K(cmd), K(reset_sql), K(ob_proxy_protocol), K(ret));
     }
   }
-
   return ret;
 }
 
@@ -235,16 +250,20 @@ int ObMysqlRequestBuilder::build_start_trans_request(ObMysqlSM *sm,
 
   uint8_t compressed_seq = 0;
   if (ObProxyProtocol::PROTOCOL_OB20 == ob_proxy_protocol) {
-    ObSEArray<ObObJKV, 1> extra_info;
-    char extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
-    if (OB_FAIL(ObProxyTraceUtils::build_extra_info_for_server(sm, extra_info_buf, SERVER_EXTRA_INFO_BUF_MAX_LEN,
-                                                               extra_info, true))) {
-      LOG_WARN("fail to build extra info for server", K(ret));
+    ObSEArray<ObObJKV, 3> extra_info;
+    ObSqlString sess_info_value;
+    char client_ip_buf[MAX_IP_BUFFER_LEN] = "\0";
+    char server_extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
+    if (OB_FAIL(ObProxyTraceUtils::build_related_extra_info_all(extra_info, sm,
+                  client_ip_buf, MAX_IP_BUFFER_LEN, server_extra_info_buf, SERVER_EXTRA_INFO_BUF_MAX_LEN,
+                  sess_info_value, true))) {
+      LOG_WARN("fail to build related extra info", K(ret));
     } else if (OB_FAIL(ObMysqlOB20PacketWriter::write_request_packet(mio_buf, cmd, sql,
                                                                      server_session->get_server_sessid(),
                                                                      server_session->get_next_server_request_id(),
-                                                                     compressed_seq, compressed_seq, true, false,
+                                                                     compressed_seq, compressed_seq, true, false, false,
                                                                      server_info.is_new_extra_info_supported(),
+                                                                     sm->get_client_session()->is_trans_internal_routing(),
                                                                      &extra_info))) {
       LOG_WARN("fail to write request packet in ob20", K(ret));
     } else { /* nothing */ }
@@ -264,6 +283,54 @@ int ObMysqlRequestBuilder::build_start_trans_request(ObMysqlSM *sm,
   return ret;
 }
 
+int ObMysqlRequestBuilder::build_xa_start_request(ObMysqlSM *sm,
+                                                  ObMIOBuffer &mio_buf,
+                                                  ObClientSessionInfo &client_info,
+                                                  ObMysqlServerSession *server_session,
+                                                  const ObProxyProtocol ob_proxy_protocol)
+{
+  LOG_DEBUG("start to build xa start request");
+  int ret = OB_SUCCESS;
+  ObString &xa_start_req_pkt = client_info.get_start_trans_sql();
+  ObString xa_pkt_payload(xa_start_req_pkt.length() - MYSQL_NET_META_LENGTH, 
+                          xa_start_req_pkt.ptr() + MYSQL_NET_META_LENGTH);
+  ObServerSessionInfo &server_info = server_session->get_session_info();
+  ObMySQLCmd cmd = OB_MYSQL_COM_STMT_PREPARE_EXECUTE; 
+  uint8_t compressed_seq = 0;
+  if (ObProxyProtocol::PROTOCOL_OB20 == ob_proxy_protocol) {
+    ObSEArray<ObObJKV, 3> extra_info;
+    ObSqlString sess_info_value;
+    char client_ip_buf[MAX_IP_BUFFER_LEN] = "\0";
+    char server_extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
+    if (OB_FAIL(ObProxyTraceUtils::build_related_extra_info_all(extra_info, sm,
+                  client_ip_buf, MAX_IP_BUFFER_LEN, server_extra_info_buf, SERVER_EXTRA_INFO_BUF_MAX_LEN,
+                  sess_info_value, true))) {
+      LOG_WARN("fail to build related extra info", K(ret));
+    } else if (OB_FAIL(ObMysqlOB20PacketWriter::write_request_packet(mio_buf, cmd, xa_pkt_payload,
+                                                                     server_session->get_server_sessid(),
+                                                                     server_session->get_next_server_request_id(),
+                                                                     compressed_seq, compressed_seq, true, false, false,
+                                                                     server_info.is_new_extra_info_supported(),
+                                                                     sm->get_client_session()->is_trans_internal_routing(),
+                                                                     &extra_info))) {
+      LOG_WARN("fail to write request packet in ob20", K(ret));
+    } else { /* nothing */ }
+  } else {
+    const bool need_compress = ob_proxy_protocol == ObProxyProtocol::PROTOCOL_CHECKSUM ? true : false;
+    ret = ObMysqlPacketWriter::write_request_packet(mio_buf, cmd, xa_pkt_payload, compressed_seq,
+                                                    need_compress, server_info.is_checksum_on());
+  }
+
+  if (OB_SUCC(ret)) {
+    server_session->set_compressed_seq(compressed_seq);
+    LOG_DEBUG("will send to sync xa start", K(xa_pkt_payload));
+  } else {
+    LOG_WARN("fail to write xa start request to buffer", K(cmd), K(xa_pkt_payload), K(ob_proxy_protocol), K(ret));
+  }
+
+  return OB_SUCCESS;
+}
+
 int ObMysqlRequestBuilder::build_prepare_request(ObMysqlSM *sm,
                                                  ObMIOBuffer &mio_buf,
                                                  ObClientSessionInfo &client_info,
@@ -279,16 +346,20 @@ int ObMysqlRequestBuilder::build_prepare_request(ObMysqlSM *sm,
   } else {
     uint8_t compressed_seq = 0;
     if (ObProxyProtocol::PROTOCOL_OB20 == ob_proxy_protocol) {
-      ObSEArray<ObObJKV, 1> extra_info;
-      char extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
-      if (OB_FAIL(ObProxyTraceUtils::build_extra_info_for_server(sm, extra_info_buf, SERVER_EXTRA_INFO_BUF_MAX_LEN,
-                                                                 extra_info, true))) {
-        LOG_WARN("fail to build extra info for server", K(ret));
+        ObSEArray<ObObJKV, 3> extra_info;
+        ObSqlString sess_info_value;
+        char client_ip_buf[MAX_IP_BUFFER_LEN] = "\0";
+        char server_extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
+        if (OB_FAIL(ObProxyTraceUtils::build_related_extra_info_all(extra_info, sm,
+                      client_ip_buf, MAX_IP_BUFFER_LEN, server_extra_info_buf, SERVER_EXTRA_INFO_BUF_MAX_LEN,
+                      sess_info_value, true))) {
+          LOG_WARN("fail to build related extra info", K(ret));
       } else if (OB_FAIL(ObMysqlOB20PacketWriter::write_request_packet(mio_buf, cmd, ps_sql,
                                                                        server_session->get_server_sessid(),
                                                                        server_session->get_next_server_request_id(),
-                                                                       compressed_seq, compressed_seq, true, false,
-                                                                       server_info.is_new_extra_info_supported(),
+                                                                       compressed_seq, compressed_seq, true, false, false,
+                                                                       server_info.is_new_extra_info_supported(), 
+                                                                       sm->get_client_session()->is_trans_internal_routing(),
                                                                        &extra_info))) {
         LOG_WARN("fail to write request packet in ob20", K(ret));
       } else { /* nothing */ }
@@ -338,16 +409,20 @@ int ObMysqlRequestBuilder::build_text_ps_prepare_request(ObMysqlSM *sm,
   } else {
     uint8_t compressed_seq = 0;
     if (ObProxyProtocol::PROTOCOL_OB20 == ob_proxy_protocol) {
-      ObSEArray<ObObJKV, 1> extra_info;
-      char extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
-      if (OB_FAIL(ObProxyTraceUtils::build_extra_info_for_server(sm, extra_info_buf, SERVER_EXTRA_INFO_BUF_MAX_LEN,
-                                                                 extra_info, true))) {
-        LOG_WARN("fail to build extra info for server", K(ret));
+        ObSEArray<ObObJKV, 3> extra_info;
+        ObSqlString sess_info_value;
+        char client_ip_buf[MAX_IP_BUFFER_LEN] = "\0";
+        char server_extra_info_buf[SERVER_EXTRA_INFO_BUF_MAX_LEN] = "\0";
+        if (OB_FAIL(ObProxyTraceUtils::build_related_extra_info_all(extra_info, sm,
+                      client_ip_buf, MAX_IP_BUFFER_LEN, server_extra_info_buf, SERVER_EXTRA_INFO_BUF_MAX_LEN,
+                      sess_info_value, true))) {
+          LOG_WARN("fail to build related extra info", K(ret));
       } else if (OB_FAIL(ObMysqlOB20PacketWriter::write_request_packet(mio_buf, cmd, sql,
                                                                        server_session->get_server_sessid(),
                                                                        server_session->get_next_server_request_id(),
-                                                                       compressed_seq, compressed_seq, true, false,
-                                                                       server_info.is_new_extra_info_supported(),
+                                                                       compressed_seq, compressed_seq, true, false, false,
+                                                                       server_info.is_new_extra_info_supported(), 
+                                                                       sm->get_client_session()->is_trans_internal_routing(),
                                                                        &extra_info))) {
         LOG_WARN("fail to write request packet in ob20", K(ret));
       } else { /* nothing */ }
@@ -368,6 +443,24 @@ int ObMysqlRequestBuilder::build_text_ps_prepare_request(ObMysqlSM *sm,
   return ret;
 }
 
+int ObMysqlRequestBuilder::build_binlog_login_packet(ObMysqlSM *sm,
+                                                     ObMIOBuffer &mio_buf,
+                                                     ObClientSessionInfo &client_info,
+                                                     ObMysqlServerSession *server_session,
+                                                     const ObProxyProtocol ob_proxy_protocol)
+{
+  UNUSED(sm);
+  UNUSED(server_session);
+  UNUSED(ob_proxy_protocol);
+
+  OMPKHandshakeResponse tg_hsr = client_info.get_login_req().get_hsr_result().response_;
+  tg_hsr.set_username(client_info.get_login_req().get_hsr_result().full_name_);
+  tg_hsr.set_seq(1);
+  tg_hsr.reset_connect_attr();
+
+  return packet::ObMysqlPacketWriter::write_packet(mio_buf, tg_hsr);
+}
+
 } // end of namespace proxy
 } // end of namespace obproxy
 } // end of namespace oceanbase
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_request_builder.h b/src/obproxy/proxy/mysqllib/ob_mysql_request_builder.h
index e7ea39e3..137b4097 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_request_builder.h
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_request_builder.h
@@ -53,6 +53,13 @@ class ObMysqlRequestBuilder
                                      ObClientSessionInfo &client_info,
                                      ObMysqlServerSession *server_session,
                                      const ObProxyProtocol ob_proxy_protocol);
+  
+  // build binlog login request
+  static int build_binlog_login_packet(ObMysqlSM *sm,
+                                       event::ObMIOBuffer &mio_buf,
+                                       ObClientSessionInfo &client_info,
+                                       ObMysqlServerSession *server_session,
+                                       const ObProxyProtocol ob_proxy_protocol);
 
   // build saved login packet to send saved login request
   static int build_saved_login_packet(ObMysqlSM *sm,
@@ -88,12 +95,12 @@ class ObMysqlRequestBuilder
                                             ObMysqlServerSession *server_session,
                                             const ObProxyProtocol ob_proxy_protocol);
 
-  // build OB_MYSQL_COM_QUERY packet to sync last_insert_id var
-  static int build_last_insert_id_sync_packet(ObMysqlSM *sm,
-                                              event::ObMIOBuffer &mio_buf,
-                                              ObClientSessionInfo &client_info,
-                                              ObMysqlServerSession *server_session,
-                                              const ObProxyProtocol ob_proxy_protocol);
+  // build OB_MYSQL_COM_QUERY packet to sync session user vars
+  static int build_session_user_vars_sync_packet(ObMysqlSM *sm,
+                                                 event::ObMIOBuffer &mio_buf,
+                                                 ObClientSessionInfo &client_info,
+                                                 ObMysqlServerSession *server_session,
+                                                 const ObProxyProtocol ob_proxy_protocol);
 
   // build start transaction request packet
   static int build_start_trans_request(ObMysqlSM *sm,
@@ -101,6 +108,12 @@ class ObMysqlRequestBuilder
                                        ObClientSessionInfo &client_info,
                                        ObMysqlServerSession *server_session,
                                        const ObProxyProtocol ob_proxy_protocol);
+  
+  static int build_xa_start_request(ObMysqlSM *sm,
+                                    event::ObMIOBuffer &mio_buf,
+                                    ObClientSessionInfo &client_info,
+                                    ObMysqlServerSession *server_session,
+                                    const ObProxyProtocol ob_proxy_protocol);
 
   // build mysql request packet
   static int build_mysql_request(event::ObMIOBuffer &mio_buf,
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_resp_analyzer.cpp b/src/obproxy/proxy/mysqllib/ob_mysql_resp_analyzer.cpp
index 4c8813dd..b8b752c5 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_resp_analyzer.cpp
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_resp_analyzer.cpp
@@ -75,7 +75,10 @@ inline int ObMysqlPacketMetaAnalyzer::update_cur_type(ObRespResult &result, cons
       // paket will treat as ok packet.
       // so in ResultSet Protocol, a packet can be detemined as ok packet by
       // both 0x00 === pkt_type and 1 != has_already_recived_eof_pkt_cnt
-      if (OB_MYSQL_COM_STMT_PREPARE == result.get_cmd()) {
+      if (OB_MYSQL_COM_BINLOG_DUMP == result.get_cmd()
+          || OB_MYSQL_COM_BINLOG_DUMP_GTID == result.get_cmd()) {
+        break;
+      } else if (OB_MYSQL_COM_STMT_PREPARE == result.get_cmd()) {
         /* Preapre Request, in OCEANBASE, maybe error + ok. in this case, should set OK_PACKET_ENDING_TYPE */
         if (0 == prepare_ok_pkt_cnt && 0 == err_pkt_cnt) {
           cur_type_ = PREPARE_OK_PACKET_ENDING_TYPE;
@@ -176,7 +179,10 @@ ObRespResult::ObRespResult()
       mysql_mode_(UNDEFINED_MYSQL_PROTOCOL_MODE),
       resp_type_(MAX_RESP_TYPE),
       trans_state_(IN_TRANS_STATE_BY_DEFAULT),
-      reserved_len_(0)
+      reserved_len_(0),
+      all_pkt_cnt_(0),
+      expect_pkt_cnt_(0),
+      is_recv_resultset_(false)
 {
   MEMSET(pkt_cnt_, 0, sizeof(pkt_cnt_));
 }
@@ -480,6 +486,27 @@ int ObRespResult::is_resp_finished(bool &finished, ObMysqlRespEndingType &ending
         }
         break;
       }
+      case OB_MYSQL_COM_BINLOG_DUMP:
+      case OB_MYSQL_COM_BINLOG_DUMP_GTID : {
+        if (1 == pkt_cnt_[EOF_PACKET_ENDING_TYPE]) {
+          finished = true;
+          ending_type = EOF_PACKET_ENDING_TYPE;
+        } else if (1 == pkt_cnt_[ERROR_PACKET_ENDING_TYPE]) {
+          finished = true;
+          ending_type = ERROR_PACKET_ENDING_TYPE;
+        }
+        break;
+      }
+      case OB_MYSQL_COM_REGISTER_SLAVE: {
+        if (1 == pkt_cnt_[ERROR_PACKET_ENDING_TYPE]) {
+          finished = true;
+          ending_type = ERROR_PACKET_ENDING_TYPE;
+        } else if (1 == pkt_cnt_[OK_PACKET_ENDING_TYPE]) {
+          finished = true;
+          ending_type = OK_PACKET_ENDING_TYPE;
+        }
+        break;
+      }
       default : {
         if (!is_supported_mysql_cmd(cmd_)) {
           ret = OB_NOT_SUPPORTED;
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_response.h b/src/obproxy/proxy/mysqllib/ob_mysql_response.h
index 1003e916..de5431d0 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_response.h
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_response.h
@@ -78,7 +78,7 @@ struct ObRespAnalyzeResult
   bool is_server_can_use_compress() const { return (1 == server_capabilities_lower_.capability_flag_.OB_SERVER_CAN_USE_COMPRESS); }
   void set_server_trace_id(const common::ObString &trace_id);
   bool support_ssl() const { return 1 == server_capabilities_lower_.capability_flag_.OB_SERVER_SSL; }
-
+  bool is_server_trans_internal_routing() const { return is_server_trans_internal_routing_; }
   bool is_not_supported_error() const
   {
     return (is_error_resp() && ER_NOT_SUPPORTED_YET == error_pkt_.get_err_code());
@@ -135,6 +135,18 @@ struct ObRespAnalyzeResult
   {
     return (is_error_resp() && -common::OB_STANDBY_WEAK_READ_ONLY == error_pkt_.get_err_code());
   }
+  bool is_trans_free_route_not_supported_error() const 
+  {
+    return (is_error_resp() && -common::OB_TRANS_FREE_ROUTE_NOT_SUPPORTED == error_pkt_.get_err_code());
+  }
+  bool is_mysql_wrong_arguments_error() const
+  {
+    return (is_error_resp() && ER_WRONG_ARGUMENTS == error_pkt_.get_err_code());
+  }
+  bool is_internal_error() const
+  {
+    return (is_error_resp() && -common::OB_INTERNAL_ERROR == error_pkt_.get_err_code());
+  }
 
   inline uint32_t get_server_capability() const
   {
@@ -186,7 +198,7 @@ struct ObRespAnalyzeResult
 
   Ob20ExtraInfo extra_info_;
   common::FLTObjManage flt_;
-
+  bool is_server_trans_internal_routing_;
   DISALLOW_COPY_AND_ASSIGN(ObRespAnalyzeResult);
 };
 
@@ -235,6 +247,7 @@ inline void ObRespAnalyzeResult::reset()
   server_trace_id_.reset();
   extra_info_.reset();
   flt_.reset();
+  is_server_trans_internal_routing_ = false;
 }
 
 inline void ObRespAnalyzeResult::set_server_trace_id(const common::ObString &trace_id)
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_response_builder.cpp b/src/obproxy/proxy/mysqllib/ob_mysql_response_builder.cpp
index 39727b65..596b68c0 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_response_builder.cpp
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_response_builder.cpp
@@ -13,6 +13,9 @@
 #define USING_LOG_PREFIX PROXY
 #include "proxy/mysqllib/ob_mysql_response_builder.h"
 #include "rpc/obmysql/packet/ompk_ok.h"
+#include "rpc/obmysql/packet/ompk_prepare_execute.h"
+#include "rpc/obmysql/packet/ompk_prepare_execute_req.h"
+#include "rpc/obmysql/packet/ompk_eof.h"
 #include "packet/ob_proxy_cached_packets.h"
 #include "packet/ob_mysql_packet_writer.h"
 #include "packet/ob_mysql_packet_util.h"
@@ -38,6 +41,7 @@ const ObString ObMysqlResponseBuilder::OBPROXY_PROXY_VERSION_NAME = "proxy_versi
 int ObMysqlResponseBuilder::build_ok_resp(ObMIOBuffer &mio_buf,
                                           ObProxyMysqlRequest &client_request,
                                           ObMysqlClientSession &client_session,
+                                          const ObProxyProtocol protocol,
                                           const bool is_in_trans,
                                           const bool is_state_changed)
 {
@@ -60,8 +64,8 @@ int ObMysqlResponseBuilder::build_ok_resp(ObMIOBuffer &mio_buf,
     if (is_state_changed) {
       ssf.status_flags_.OB_SERVER_SESSION_STATE_CHANGED = 1;
     }
-    if (0 != autocommit) {
-      ssf.status_flags_.OB_SERVER_STATUS_AUTOCOMMIT = 1;
+    if (0 == autocommit) {
+      ssf.status_flags_.OB_SERVER_STATUS_AUTOCOMMIT = 0;
     }
     //ok_packet.set_server_status(ssf.status_flags_);
     ok_packet->set_status_flags(ssf.flags_);
@@ -69,7 +73,7 @@ int ObMysqlResponseBuilder::build_ok_resp(ObMIOBuffer &mio_buf,
     ObString pkt_str;
     if (OB_FAIL(ok_packet->get_packet_str(pkt_str))) {
       LOG_WARN("fail to get ok packet str", K(ret));
-    } else if (OB_FAIL(ObProxyPacketWriter::write_raw_packet(mio_buf, client_session, pkt_str))) {
+    } else if (OB_FAIL(ObProxyPacketWriter::write_raw_packet(mio_buf, client_session, protocol, pkt_str))) {
       LOG_WARN("fail to write packet", K(ret));
     }
   }
@@ -77,9 +81,187 @@ int ObMysqlResponseBuilder::build_ok_resp(ObMIOBuffer &mio_buf,
   return ret;
 }
 
+/**
+ * @brief build OB_MYSQL_COM_STMT_PREPARE_EXECUTE response of XA_START request
+ *  OB_MYSQL_COM_STMT_PREPARE_EXECUTE
+ *  struct of OB_MYSQL_COM_STMT_PREPARE_EXECUTE RESPONSE:
+ *  Prepare
+ *  param_num > 0 ? ColDef * param_num
+ *  Eof
+ *  col_num > 0 ? ColDef * col_num
+ *  Eof
+ *  Row
+ *  Eof
+ *  Ok
+ * 
+ * @param mio_buf 
+ * @param client_request 
+ * @param info 
+ * @return int 
+ */
+int ObMysqlResponseBuilder::build_prepare_execute_xa_start_resp(ObMIOBuffer &mio_buf,
+                                                                ObProxyMysqlRequest &client_request,
+                                                                ObMysqlClientSession &client_session,
+                                                                const ObProxyProtocol protocol)
+{
+  int ret = OB_SUCCESS;
+  ObClientSessionInfo &info = client_session.get_session_info();
+  OMPKPrepareExecuteReq prepare_req_pkt;
+  ObIOBufferReader *tmp_mio_reader = NULL;
+  ObMIOBuffer *tmp_mio_buf = &mio_buf;
+  
+  if (protocol == ObProxyProtocol::PROTOCOL_OB20) {
+    if (OB_ISNULL(tmp_mio_buf = new_empty_miobuffer())) {
+      ret = OB_ALLOCATE_MEMORY_FAILED;
+      LOG_WARN("fail to new miobuffer", K(ret));
+    } else if (OB_ISNULL(tmp_mio_reader = tmp_mio_buf->alloc_reader())) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("fail to alloc reader", K(ret));
+    }
+  }
+
+  if (OB_SUCC(ret)) {
+    // decode the prepare execute request
+    prepare_req_pkt.set_content(client_request.get_req_pkt().ptr() + MYSQL_NET_HEADER_LENGTH,
+                                static_cast<uint32_t>(client_request.get_packet_len()));
+    if (OB_FAIL(prepare_req_pkt.decode())) {
+      LOG_WARN("fail to decode the xa start prepare execute", K(ret));
+    }
+  }
+
+  if (OB_SUCC(ret)) {
+    // get seq
+    uint8_t seq = static_cast<uint8_t>(client_request.get_packet_meta().pkt_seq_ + 1);
+    uint32_t sid = info.get_client_ps_id();
+    int64_t autocommit = info.get_cached_variables().get_autocommit();
+    // write prepare execute resp 
+    OMPKPrepareExecute prepare_pkt;
+    prepare_pkt.set_seq(seq++);
+    prepare_pkt.set_status(0);
+    prepare_pkt.set_statement_id(sid);
+    prepare_pkt.set_column_num(1);
+    prepare_pkt.set_param_num(static_cast<uint16_t>(prepare_req_pkt.get_param_num()));
+    prepare_pkt.set_warning_count(0);
+    prepare_pkt.set_extend_flag(0);
+    prepare_pkt.set_has_result_set(1);
+    if (OB_FAIL(ObMysqlPacketWriter::write_packet(*tmp_mio_buf, prepare_pkt))) {
+      seq--;
+      LOG_WARN("fail to write prepare pkt of resp of xa start hold", K(ret));
+    }
+    // write params Coldef 
+    for (int32_t i = 0; OB_SUCC(ret) && i < prepare_req_pkt.get_param_num(); i++) {
+      ObMySQLField param_field;
+      param_field.cname_ = "?";
+      param_field.type_ = prepare_req_pkt.get_param_types().at(i);
+      param_field.type_info_ = prepare_req_pkt.get_type_infos().at(i);
+      param_field.flags_ = 0;
+      param_field.charsetnr_ = static_cast<uint16_t>(info.get_collation_connection());
+      param_field.length_ = 0;
+      if (OB_FAIL(ObMysqlPacketUtil::encode_field_packet(*tmp_mio_buf, seq, param_field))) {
+        LOG_WARN("fail to write field pkt of resp of xa start hold", K(ret), K(param_field));
+      }
+    }
+    // write Eof
+    if (prepare_req_pkt.get_param_num() > 0 && OB_SUCC(ret)) {
+      uint16_t status_flag_0 = 0;
+      status_flag_0 |= (1 << OB_SERVER_STATUS_IN_TRANS_POS);
+      if (0 != autocommit) {
+        status_flag_0 |= (1 << OB_SERVER_STATUS_AUTOCOMMIT_POS);
+      }
+      if (OB_FAIL(ObMysqlPacketUtil::encode_eof_packet(*tmp_mio_buf, seq, status_flag_0))){
+        LOG_WARN("fail to write eof pkt of resp of xa start hold", K(ret));
+      }
+    }    
+    // ColDef: row field
+    if (OB_SUCC(ret)) {
+    ObMySQLField row_col_field;
+    row_col_field.cname_ = client_request.get_parse_sql();
+    row_col_field.org_cname_ = client_request.get_parse_sql();
+    row_col_field.type_ = OB_MYSQL_TYPE_LONG;
+    row_col_field.flags_ = OB_MYSQL_BINARY_FLAG;
+    row_col_field.charsetnr_ = CS_TYPE_BINARY;
+    row_col_field.length_ = 0;
+    if (OB_FAIL(ObMysqlPacketUtil::encode_field_packet(*tmp_mio_buf, seq, row_col_field))) {
+        LOG_WARN("fail to write field pkt of resp of xa start hold", K(ret));
+      }
+    }
+    // Eof
+    if (OB_SUCC(ret)) {
+      uint16_t status_flag_1 = 0;
+      if (0 != autocommit) {
+        status_flag_1 |= (1 << OB_SERVER_STATUS_AUTOCOMMIT_POS);
+      }
+      status_flag_1 |= (1 << OB_SERVER_STATUS_IN_TRANS_POS);
+      status_flag_1 |= (1 << OB_SERVER_STATUS_CURSOR_EXISTS_POS);
+      if (OB_FAIL(ObMysqlPacketUtil::encode_eof_packet(*tmp_mio_buf, seq, status_flag_1))) {
+        LOG_WARN("fail to write eof pkt of resp of xa start hold", K(ret));
+      }
+    }
+    // Row
+    if (OB_SUCC(ret)) {
+      ObObj field_value;
+      field_value.set_int32(0);
+      ObNewRow row;
+      row.cells_ = &field_value;
+      row.count_ = 1;
+      if (ObMysqlPacketUtil::encode_row_packet(*tmp_mio_buf, BINARY, seq, row)) {
+        LOG_WARN("fail to write row pkt", K(ret));
+      }
+    }
+    // write Eof
+    if (OB_SUCC(ret)) {
+      uint16_t status_flag_2 = 0;
+      if (0 != autocommit) {
+        status_flag_2 |= (1 << OB_SERVER_STATUS_AUTOCOMMIT_POS);
+      }
+      status_flag_2 |= (1 << OB_SERVER_STATUS_IN_TRANS_POS);
+      status_flag_2 |= (1 << OB_SERVER_STATUS_LAST_ROW_SENT_POS);
+      if (OB_FAIL(ObMysqlPacketUtil::encode_eof_packet(*tmp_mio_buf, seq, status_flag_2))) {
+        LOG_WARN("fail to write eof pkt of resp of xa start hold", K(ret));
+      }
+    }
+    // Ok
+    if (OB_SUCC(ret)) {
+      uint16_t status_flag_3 = 0;
+      if (0 != autocommit) {
+        status_flag_3 |= (1 << OB_SERVER_STATUS_AUTOCOMMIT_POS);
+      }
+      status_flag_3 |= (1 << OB_SERVER_STATUS_IN_TRANS_POS);
+      status_flag_3 |= (1 << OB_SERVER_STATUS_NO_INDEX_USED_POS);
+      status_flag_3 |= (1 << OB_SERVER_STATUS_CURSOR_EXISTS_POS);
+      status_flag_3 |= (1 << OB_SERVER_STATUS_LAST_ROW_SENT_POS);
+      status_flag_3 |= (1 << OB_SERVER_SESSION_STATE_CHANGED_POS);
+      if (OB_FAIL(ObMysqlPacketUtil::encode_ok_packet(*tmp_mio_buf, seq, 0, info.get_orig_capability_flags(), status_flag_3))) {
+        LOG_WARN("fail to write last ok pkt of resp of xa start hold", K(ret));
+      } else {
+        LOG_DEBUG("succ to write prepare execute packets of resp of xa start hold");
+      }
+    } else {
+      LOG_WARN("fail to write prepare execute packets of resp of xa start hold", K(ret));
+    }
+
+    if (OB_SUCC(ret) && protocol == ObProxyProtocol::PROTOCOL_OB20) {
+      Ob20ProtocolHeader &ob20_head = client_session.get_session_info().ob20_request_.ob20_header_;
+      uint8_t compressed_seq = static_cast<uint8_t>(client_session.get_compressed_seq() + 1);
+      Ob20ProtocolHeaderParam ob20_head_param(client_session.get_cs_id(), ob20_head.request_id_, compressed_seq,
+                                              compressed_seq, true, false, false,
+                                              client_session.is_client_support_new_extra_info(),
+                                              client_session.is_trans_internal_routing());
+      if (OB_FAIL(ObProto20Utils::consume_and_compress_data(tmp_mio_reader, &mio_buf,
+                                                            tmp_mio_reader->read_avail(), ob20_head_param))) {
+        LOG_WARN("fail to consume and compress data for executor response packet in ob20", K(ret));
+      } else {
+        LOG_DEBUG("succ to executor response in ob20 packet");
+      }
+    }
+  } 
+  return ret;
+}
+
 int ObMysqlResponseBuilder::build_select_tx_ro_resp(ObMIOBuffer &mio_buf,
                                                     ObProxyMysqlRequest &client_request,
                                                     ObMysqlClientSession &client_session,
+                                                    const ObProxyProtocol protocol,
                                                     const bool is_in_trans)
 {
   int ret = OB_SUCCESS;
@@ -111,7 +293,7 @@ int ObMysqlResponseBuilder::build_select_tx_ro_resp(ObMIOBuffer &mio_buf,
   }
 
   // encode to mio_buf
-  if (OB_FAIL(ObProxyPacketWriter::write_kv_resultset(mio_buf, client_session, seq,
+  if (OB_FAIL(ObProxyPacketWriter::write_kv_resultset(mio_buf, client_session, protocol, seq,
                                                       field, field_value, status_flag))) {
     LOG_WARN("fail to write kv resultset", K(ret));
   }
@@ -122,8 +304,9 @@ int ObMysqlResponseBuilder::build_select_tx_ro_resp(ObMIOBuffer &mio_buf,
 int ObMysqlResponseBuilder::build_select_route_addr_resp(ObMIOBuffer &mio_buf,
                                                          ObProxyMysqlRequest &client_request,
                                                          ObMysqlClientSession &client_session,
+                                                         const ObProxyProtocol protocol,
                                                          const bool is_in_trans,
-                                                         int64_t addr)
+                                                         const struct sockaddr &addr)
 {
   int ret = OB_SUCCESS;
   ObClientSessionInfo &info = client_session.get_session_info();
@@ -135,13 +318,16 @@ int ObMysqlResponseBuilder::build_select_route_addr_resp(ObMIOBuffer &mio_buf,
   ObMySQLField field;
   field.cname_ = OBPROXY_ROUTE_ADDR_NAME;
   field.org_cname_ = OBPROXY_ROUTE_ADDR_NAME;
-  field.type_ = OB_MYSQL_TYPE_LONGLONG;
+  field.type_ = OB_MYSQL_TYPE_VARCHAR;
   field.charsetnr_ = CS_TYPE_BINARY;
   field.flags_ = OB_MYSQL_BINARY_FLAG;
 
   // get filed value
   ObObj field_value;
-  field_value.set_int(addr);
+  char buf[MAX_IP_ADDR_LENGTH];
+  memset(buf, 0, sizeof(buf));
+  net::ops_ip_ntop(addr, buf, MAX_IP_ADDR_LENGTH);
+  field_value.set_varchar(buf);
 
   // get status flag
   uint16_t status_flag = 0;
@@ -154,7 +340,7 @@ int ObMysqlResponseBuilder::build_select_route_addr_resp(ObMIOBuffer &mio_buf,
   }
 
   // encode to mio_buf
-  if (OB_FAIL(ObProxyPacketWriter::write_kv_resultset(mio_buf, client_session, seq,
+  if (OB_FAIL(ObProxyPacketWriter::write_kv_resultset(mio_buf, client_session, protocol, seq,
                                                       field, field_value, status_flag))) {
     LOG_WARN("fail to write kv resultset", K(ret));
   }
@@ -165,6 +351,7 @@ int ObMysqlResponseBuilder::build_select_route_addr_resp(ObMIOBuffer &mio_buf,
 int ObMysqlResponseBuilder::build_select_proxy_version_resp(ObMIOBuffer &mio_buf,
                                                             ObProxyMysqlRequest &client_request,
                                                             ObMysqlClientSession &client_session,
+                                                            const ObProxyProtocol protocol,
                                                             const bool is_in_trans)
 {
   int ret = OB_SUCCESS;
@@ -201,7 +388,8 @@ int ObMysqlResponseBuilder::build_select_proxy_version_resp(ObMIOBuffer &mio_buf
   }
 
   // encode to mio_buf
-  if (OB_FAIL(ObProxyPacketWriter::write_kv_resultset(mio_buf, client_session, seq, field, field_value, status_flag))) {
+  if (OB_FAIL(ObProxyPacketWriter::write_kv_resultset(mio_buf, client_session, protocol,
+                                                      seq, field, field_value, status_flag))) {
     LOG_WARN("fail to write kv resultset", K(ret));
   }
 
diff --git a/src/obproxy/proxy/mysqllib/ob_mysql_response_builder.h b/src/obproxy/proxy/mysqllib/ob_mysql_response_builder.h
index 0c0cbb10..e021a0ce 100644
--- a/src/obproxy/proxy/mysqllib/ob_mysql_response_builder.h
+++ b/src/obproxy/proxy/mysqllib/ob_mysql_response_builder.h
@@ -13,6 +13,8 @@
 #ifndef OBPROXY_MYSQL_RESPONSE_BUILDER_H
 #define OBPROXY_MYSQL_RESPONSE_BUILDER_H
 #include "utils/ob_proxy_lib.h"
+#include "common/obsm_row.h"
+#include "proxy/mysqllib/ob_mysql_common_define.h"
 
 namespace oceanbase
 {
@@ -34,60 +36,77 @@ class ObMysqlResponseBuilder
   static const common::ObString OBPROXY_PROXY_VERSION_NAME;
 
   static int build_ok_resp(event::ObMIOBuffer &mio_buf, ObProxyMysqlRequest &client_request,
-                           ObMysqlClientSession &client_session, const bool is_in_trans, const bool is_state_changed);
+                           ObMysqlClientSession &client_session, const ObProxyProtocol protocol,
+                           const bool is_in_trans, const bool is_state_changed);
 
   static int build_start_trans_resp(event::ObMIOBuffer &mio_buf, ObProxyMysqlRequest &client_request,
-                                    ObMysqlClientSession &client_session);
+                                    ObMysqlClientSession &client_session, const ObProxyProtocol protocol);
+
+  static int build_prepare_execute_xa_start_resp(event::ObMIOBuffer &mio_buf,
+                                 ObProxyMysqlRequest &client_request,
+                                 ObMysqlClientSession &client_session,
+                                 const ObProxyProtocol protocol);
 
   static int build_select_tx_ro_resp(event::ObMIOBuffer &mio_buf,
                                      ObProxyMysqlRequest &client_request,
                                      ObMysqlClientSession &client_session,
+                                     const ObProxyProtocol protocol,
                                      const bool is_in_trans);
 
   static int build_ok_resq_with_state_changed(event::ObMIOBuffer &mio_buf,
                                               ObProxyMysqlRequest &client_request,
                                               ObMysqlClientSession &client_session,
+                                              const ObProxyProtocol protocol,
                                               const bool is_in_trans);
 
-  static int build_select_route_addr_resp(event::ObMIOBuffer &mio_buf, ObProxyMysqlRequest &client_request,
-                                          ObMysqlClientSession &client_session, const bool is_in_trans, int64_t addr);
+  static int build_select_route_addr_resp(event::ObMIOBuffer &mio_buf,
+                                          ObProxyMysqlRequest &client_request,
+                                          ObMysqlClientSession &client_session,
+                                          const ObProxyProtocol protocol,
+                                          const bool is_in_trans,
+                                          const struct sockaddr &addr);
 
   static int build_set_route_addr_resp(event::ObMIOBuffer &mio_buf,
                                        ObProxyMysqlRequest &client_request,
                                        ObMysqlClientSession &client_session,
+                                       const ObProxyProtocol protocol,
                                        const bool is_in_trans);
 
   static int build_select_proxy_version_resp(event::ObMIOBuffer &mio_buf,
                                              ObProxyMysqlRequest &client_request,
                                              ObMysqlClientSession &client_session,
+                                             const ObProxyProtocol protocol,
                                              const bool is_in_trans);
 };
 
 inline int ObMysqlResponseBuilder::build_start_trans_resp(event::ObMIOBuffer &mio_buf,
                                                           ObProxyMysqlRequest &client_request,
-                                                          ObMysqlClientSession &client_session)
+                                                          ObMysqlClientSession &client_session,
+                                                          const ObProxyProtocol protocol)
 {
   static const bool is_in_trans = true;
   static const bool is_state_changed = false;
-  return build_ok_resp(mio_buf, client_request, client_session, is_in_trans, is_state_changed);
+  return build_ok_resp(mio_buf, client_request, client_session, protocol, is_in_trans, is_state_changed);
 }
 
 inline int ObMysqlResponseBuilder::build_ok_resq_with_state_changed(event::ObMIOBuffer &mio_buf,
                                                                     ObProxyMysqlRequest &client_request,
                                                                     ObMysqlClientSession &client_session,
+                                                                    const ObProxyProtocol protocol,
                                                                     const bool is_in_trans)
 {
   static const bool is_state_changed = true;
-  return build_ok_resp(mio_buf, client_request, client_session, is_in_trans, is_state_changed);
+  return build_ok_resp(mio_buf, client_request, client_session, protocol, is_in_trans, is_state_changed);
 }
 
 inline int ObMysqlResponseBuilder::build_set_route_addr_resp(event::ObMIOBuffer &mio_buf,
                                                              ObProxyMysqlRequest &client_request,
                                                              ObMysqlClientSession &client_session,
+                                                             const ObProxyProtocol protocol,
                                                              const bool is_in_trans)
 {
   static const bool is_state_changed = false;
-  return build_ok_resp(mio_buf, client_request, client_session, is_in_trans, is_state_changed);
+  return build_ok_resp(mio_buf, client_request, client_session, protocol, is_in_trans, is_state_changed);
 }
 
 } // end of namespace proxy
diff --git a/src/obproxy/proxy/mysqllib/ob_proxy_mysql_request.h b/src/obproxy/proxy/mysqllib/ob_proxy_mysql_request.h
index 40d0fd1d..39e9a86a 100644
--- a/src/obproxy/proxy/mysqllib/ob_proxy_mysql_request.h
+++ b/src/obproxy/proxy/mysqllib/ob_proxy_mysql_request.h
@@ -78,6 +78,7 @@ class ObProxyMysqlRequest
   static common::ObString get_print_sql(const common::ObString &req_sql, const int64_t sql_len = PRINT_SQL_LEN);
   common::ObString get_req_pkt();
   obutils::ObSqlParseResult &get_parse_result();
+  const obutils::ObSqlParseResult &get_parse_result() const;
   obutils::ObSqlParseResult *get_ps_parse_result() { return ps_result_; }
   void set_ps_parse_result(obutils::ObSqlParseResult *ps_result) { ps_result_ = ps_result; }
   void set_text_ps_parse_result(obutils::ObSqlParseResult *text_ps_result)
@@ -111,6 +112,7 @@ class ObProxyMysqlRequest
   int64_t get_packet_len() { return meta_.pkt_len_; }
 
   ObMysqlPacketMeta &get_packet_meta() { return meta_; }
+  const ObMysqlPacketMeta &get_packet_meta() const { return meta_; }
   void set_packet_meta(const ObMysqlPacketMeta &meta) { meta_ = meta; }
 
   // add received request
@@ -196,7 +198,17 @@ inline void ObProxyMysqlRequest::reset(bool is_reset_origin_db_table /* true */)
 inline obutils::ObSqlParseResult &ObProxyMysqlRequest::get_parse_result()
 {
   obutils::ObSqlParseResult *result = &result_;
-  if ((obmysql::OB_MYSQL_COM_STMT_EXECUTE == meta_.cmd_  || obmysql::OB_MYSQL_COM_STMT_SEND_LONG_DATA == meta_.cmd_)
+  if ((obmysql::OB_MYSQL_COM_STMT_EXECUTE == meta_.cmd_ || obmysql::OB_MYSQL_COM_STMT_SEND_LONG_DATA == meta_.cmd_)
+      && NULL != ps_result_) {
+    result = ps_result_;
+  }
+  return *result;
+}
+
+const obutils::ObSqlParseResult &ObProxyMysqlRequest::get_parse_result() const
+{
+  const obutils::ObSqlParseResult *result = &result_;
+  if ((obmysql::OB_MYSQL_COM_STMT_EXECUTE == meta_.cmd_ || obmysql::OB_MYSQL_COM_STMT_SEND_LONG_DATA == meta_.cmd_)
       && NULL != ps_result_) {
     result = ps_result_;
   }
diff --git a/src/obproxy/proxy/mysqllib/ob_proxy_ob20_request.h b/src/obproxy/proxy/mysqllib/ob_proxy_ob20_request.h
index 2fe65132..befc9619 100644
--- a/src/obproxy/proxy/mysqllib/ob_proxy_ob20_request.h
+++ b/src/obproxy/proxy/mysqllib/ob_proxy_ob20_request.h
@@ -40,7 +40,7 @@ struct ObProxyObProto20Request {
 
   // ob20 payload could contain more than one mysql packet, the total mysql packet len stored here
   int64_t remain_payload_len_;
-  bool ob20_request_received_done_;
+  bool ob20_request_received_done_;  // ob2.0 request from client received done, and tail crc not handled yet
   Ob20ProtocolHeader ob20_header_;
 
   TO_STRING_KV(K_(remain_payload_len), K_(ob20_request_received_done), K_(ob20_header));
diff --git a/src/obproxy/proxy/mysqllib/ob_proxy_session_info.cpp b/src/obproxy/proxy/mysqllib/ob_proxy_session_info.cpp
index aa945369..6268bd3b 100644
--- a/src/obproxy/proxy/mysqllib/ob_proxy_session_info.cpp
+++ b/src/obproxy/proxy/mysqllib/ob_proxy_session_info.cpp
@@ -182,7 +182,7 @@ void ObServerSessionInfo::reuse_text_ps_version_set()
 
 ObClientSessionInfo::ObClientSessionInfo()
     : is_inited_(false), is_trans_specified_(false), is_global_vars_changed_(false),
-      is_user_idc_name_set_(false), is_read_consistency_set_(false), is_oracle_mode_(false), 
+      is_user_idc_name_set_(false), is_read_consistency_set_(false), is_oracle_mode_(false),
       is_proxy_route_policy_set_(false),
       enable_shard_authority_(false), enable_reset_db_(true), client_cap_(0), server_cap_(0),
       safe_read_snapshot_(0),
@@ -192,7 +192,8 @@ ObClientSessionInfo::ObClientSessionInfo()
       var_set_processor_(NULL), cluster_id_(OB_INVALID_CLUSTER_ID),
       real_meta_cluster_name_(), real_meta_cluster_name_str_(NULL),
       server_type_(DB_OB_MYSQL), shard_conn_(NULL), shard_prop_(NULL),
-      group_id_(OBPROXY_MAX_DBMESH_ID), is_allow_use_last_session_(true),
+      group_id_(OBPROXY_MAX_DBMESH_ID), table_id_(OBPROXY_MAX_DBMESH_ID), es_id_(OBPROXY_MAX_DBMESH_ID),
+      is_allow_use_last_session_(true),
       consistency_level_prop_(INVALID_CONSISTENCY),
       recv_client_ps_id_(0), ps_id_(0), ps_entry_(NULL), ps_id_entry_(NULL), ps_id_entry_map_(),
       text_ps_name_entry_(NULL), text_ps_name_entry_map_(), cursor_id_(0), cursor_id_addr_map_(),
@@ -200,14 +201,13 @@ ObClientSessionInfo::ObClientSessionInfo()
       is_read_only_user_(false),
       is_request_follower_user_(false)
 {
-  const int BUCKET_SIZE = 8;
   is_session_pool_client_ = true;
   MEMSET(scramble_buf_, 0, sizeof(scramble_buf_));
   MEMSET(idc_name_buf_, 0, sizeof(idc_name_buf_));
   MEMSET(client_host_buf_, 0, sizeof(client_host_buf_));
   MEMSET(username_buf_, 0, sizeof(username_buf_));
 
-  request_send_addrs_.create(BUCKET_SIZE);  ob20_request_.reset();
+  ob20_request_.reset();
 }
 
 ObClientSessionInfo::~ObClientSessionInfo()
@@ -319,7 +319,7 @@ int ObClientSessionInfo::set_tenant_name(const ObString &tenant_name)
 int ObClientSessionInfo::set_vip_addr_name(const common::ObAddr &vip_addr)
 {
   int ret = OB_SUCCESS;
-  char vip_name[OB_IP_STR_BUFF];
+  char vip_name[MAX_IP_ADDR_LENGTH];
   if (OB_UNLIKELY(!vip_addr.ip_to_string(vip_name, static_cast<int32_t>(sizeof(vip_name))))) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("fail to covert ip to string", K(vip_name), K(ret));
@@ -377,19 +377,25 @@ int ObClientSessionInfo::set_ldg_logical_tenant_name(const ObString &tenant_name
   return field_mgr_.set_ldg_logical_tenant_name(tenant_name);
 }
 
-int ObClientSessionInfo::update_sess_sync_info(const ObString& sess_info)
+int ObClientSessionInfo::update_sess_sync_info(const ObString& sess_info, common::ObSimpleTrace<4096> &trace_log)
 {
   int ret = OB_SUCCESS;
   const char *buf = sess_info.ptr();
   const int64_t len = sess_info.length();
   const char *end = buf + len;
   // decode sess_info
+  const int MAX_TYPE_RECORD = 32;
+  char type_record[MAX_TYPE_RECORD];
+  memset(type_record, '0', MAX_TYPE_RECORD);
   if (NULL != sess_info.ptr()) {
     while (OB_SUCC(ret) && buf < end) {
       int16_t info_type = 0;
       int32_t info_len = 0;
       ObMySQLUtil::get_int2(buf, info_type);
       ObMySQLUtil::get_int4(buf, info_len);
+      if(info_type < MAX_TYPE_RECORD) {
+        type_record[info_type] = '1';
+      }
       if (buf + info_len > end) {
         ret = OB_ERR_UNEXPECTED;
         LOG_ERROR("data is error", K(info_type), K(info_len), K(len), K(ret));
@@ -397,11 +403,19 @@ int ObClientSessionInfo::update_sess_sync_info(const ObString& sess_info)
         LOG_DEBUG("extra info", K(info_type), K(info_len), K(len));
         char* info_value = NULL;
         ObString info_value_string;
+        if (OB_FAIL(inc_sess_field_version(info_type))) {
+          LOG_WARN("fail to update sess field versoin", K(info_type), K(ret));
+        } 
         if (OB_SUCC(sess_info_hash_map_.get_refactored(info_type, info_value_string))) {
           sess_info_hash_map_.erase_refactored(info_type);
           int64_t total_len = info_value_string.length();
           op_fixed_mem_free(info_value_string.ptr(), total_len);
         }
+        int64_t client_version = 0;
+        if (OB_FAIL(ObProxyTraceUtils::get_sess_field_version(client_version , info_type, version_.sess_field_version_))) {
+          LOG_WARN("fail to set client session field version", K(info_type), K(ret));
+        } else {
+        }
         info_value_string.reset();
         if (OB_ISNULL(info_value = static_cast<char*>(op_fixed_mem_alloc(info_len + 6)))) {
           ret = OB_ALLOCATE_MEMORY_FAILED;
@@ -417,6 +431,8 @@ int ObClientSessionInfo::update_sess_sync_info(const ObString& sess_info)
         }
       }
     }
+    type_record[MAX_TYPE_RECORD - 1] = '\0';
+    trace_log.log_it("[get_sess]", "type", type_record);
     if (OB_SUCC(ret)) {
       version_.inc_sess_info_version();
       LOG_DEBUG("update sess info succ", K(sess_info));
@@ -879,6 +895,46 @@ int ObClientSessionInfo::extract_all_variable_reset_sql(ObSqlString &sql)
   return ret;
 }
 
+int ObClientSessionInfo::extract_user_variable_reset_sql(ObServerSessionInfo &server_info,
+                                                         ObSqlString &sql)
+{
+  int ret = OB_SUCCESS;
+  if (OB_UNLIKELY(!is_inited_)) {
+    ret = OB_NOT_INIT;
+    LOG_WARN("client session is not inited", K(ret));
+  } else {
+    bool need_reset = false;
+    if (OB_FAIL(sql.append_fmt("SET"))) {
+      LOG_WARN("fail to append_fmt 'SET'", K(ret));
+    } else if (!is_oceanbase_server()) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("extract user variable reset sql only for oceanbase server");
+    } else { /* do nothing */ }
+
+    //reset user variable
+    if (OB_SUCC(ret)) {
+      if (need_reset_user_session_vars(server_info)) {
+        need_reset = true;
+        if (OB_FAIL(field_mgr_.format_user_var(sql))) {
+          LOG_WARN("fail to format_user_var.", K(sql), K(*this),
+                   K(server_info), K(ret));
+        }
+      }
+    }
+
+    if (OB_SUCC(ret)) {
+      if (need_reset) {
+        *(sql.ptr() + sql.length() - 1) = ';'; //replace ',' with ';'
+      } else {
+        sql.reset();
+      }
+    } else {
+      sql.reset();
+    }
+  }
+  return ret;
+}
+
 int ObClientSessionInfo::extract_variable_reset_sql(ObServerSessionInfo &server_info,
                                                     ObSqlString &sql)
 {
@@ -1215,7 +1271,7 @@ void ObClientSessionInfo::destroy()
     field_mgr_.destroy();
     login_req_.destroy();
     destroy_sess_info_map();
-    is_inited_ = false;  
+    is_inited_ = false;
   }
   if (NULL != var_set_processor_) {
     ObDefaultSysVarSet *sys_set = field_mgr_.get_sys_var_set();
@@ -1267,6 +1323,8 @@ void ObClientSessionInfo::destroy()
     shard_prop_ = NULL;
   }
   group_id_ = OBPROXY_MAX_DBMESH_ID;
+  table_id_ = OBPROXY_MAX_DBMESH_ID;
+  es_id_ = OBPROXY_MAX_DBMESH_ID;
   is_allow_use_last_session_ = true;
   up_info_.reset();
 }
diff --git a/src/obproxy/proxy/mysqllib/ob_proxy_session_info.h b/src/obproxy/proxy/mysqllib/ob_proxy_session_info.h
index 3d3e17a8..ec50f4f6 100644
--- a/src/obproxy/proxy/mysqllib/ob_proxy_session_info.h
+++ b/src/obproxy/proxy/mysqllib/ob_proxy_session_info.h
@@ -19,10 +19,12 @@
 #include "lib/hash_func/murmur_hash.h"
 #include "lib/hash/ob_build_in_hashmap.h"
 #include "lib/hash/ob_hashset.h"
+#include "lib/oblog/ob_simple_trace.h"
 #include "utils/ob_proxy_utils.h"
 #include "obutils/ob_cached_variables.h"
 #include "proxy/mysqllib/ob_session_field_mgr.h"
 #include "proxy/mysqllib/ob_proxy_auth_parser.h"
+#include "proxy/mysqllib/ob_2_0_protocol_utils.h"
 #include "proxy/route/ob_ldc_struct.h"
 #include "proxy/mysql/ob_prepare_statement_struct.h"
 #include "proxy/mysql/ob_cursor_struct.h"
@@ -48,6 +50,7 @@ class ObDefaultSysVarSet;
 namespace proxy
 {
 typedef common::hash::ObHashMap<int16_t, ObString> SessFieldHashMap;
+typedef common::hash::ObHashMap<int16_t, int64_t> SessFieldVersionHashMap;
 
 enum ObProxyChecksumSwitch
 {
@@ -59,9 +62,9 @@ enum ObProxyChecksumSwitch
 class ObSessionVarVersion
 {
 public:
-  ObSessionVarVersion() { reset(); }
+  ObSessionVarVersion() { reset(); sess_field_version_.create(32, ObModIds::OB_PROXY_SESS_SYNC); }
   ~ObSessionVarVersion() { reset(); }
-  void reset() { memset(this, 0, sizeof(ObSessionVarVersion)); }
+  void reset();
 
   void inc_common_hot_sys_var_version() { common_hot_sys_var_version_++; }
   void inc_common_sys_var_version() { common_sys_var_version_++; }
@@ -73,6 +76,10 @@ class ObSessionVarVersion
   void inc_db_name_version() { db_name_version_++; }
   void inc_last_insert_id_version() { last_insert_id_version_++; }
   void inc_sess_info_version() { sess_info_version_++; }
+  int inc_sess_field_version(int16_t type);
+  SessFieldVersionHashMap& get_sess_field_version() { return sess_field_version_; }
+
+
   TO_STRING_KV(K_(common_hot_sys_var_version), K_(common_sys_var_version),
                K_(mysql_hot_sys_var_version), K_(mysql_sys_var_version),
                K_(hot_sys_var_version), K_(sys_var_version), K_(user_var_version),
@@ -88,11 +95,44 @@ class ObSessionVarVersion
   int64_t db_name_version_;
   int64_t last_insert_id_version_;
   int64_t sess_info_version_;
+  SessFieldVersionHashMap sess_field_version_;
 
 private:
   DISALLOW_COPY_AND_ASSIGN(ObSessionVarVersion);
 };
 
+
+inline int ObSessionVarVersion::inc_sess_field_version(int16_t type)
+{
+  int ret = OB_SUCCESS;
+  int64_t new_version = 0;
+  if (OB_FAIL(ObProxyTraceUtils::get_sess_field_version(new_version, type, sess_field_version_))) {
+    _PROXY_LOG(WARN, "fail to update session field versoin, query version failed, field type:%d, ret:%d",type, ret);
+  }
+  
+  if (OB_SUCC(ret)) {
+    new_version++;
+    if (OB_FAIL(sess_field_version_.set_refactored(type, new_version, 1))) {
+      _PROXY_LOG(WARN, "update session field versoin failed, field type:%d, ret:%d", type, ret);
+    }
+  } 
+  return ret;
+}
+
+inline void ObSessionVarVersion::reset() {
+  common_hot_sys_var_version_ = 0;
+  common_sys_var_version_ = 0;
+  mysql_hot_sys_var_version_ = 0;
+  mysql_sys_var_version_ = 0;
+  hot_sys_var_version_ = 0;
+  sys_var_version_ = 0;
+  user_var_version_ = 0;
+  db_name_version_ = 0;
+  last_insert_id_version_ = 0;
+  sess_info_version_ = 0;
+  sess_field_version_.clear();
+}
+
 class ObSessionVarValHash
 {
 public:
@@ -184,7 +224,7 @@ class ObServerSessionInfo
   int64_t get_db_name_version() const { return version_.db_name_version_; }
   int64_t get_last_insert_id_version() const { return version_.last_insert_id_version_; }
   int64_t get_sess_info_version() const { return version_.sess_info_version_; }
-
+  SessFieldVersionHashMap& get_sess_field_version() { return version_.sess_field_version_; }
   void set_common_hot_sys_var_version(const int64_t version) { version_.common_hot_sys_var_version_ = version; }
   void set_common_sys_var_version(const int64_t version) { version_.common_sys_var_version_ = version; }
   void set_mysql_hot_sys_var_version(const int64_t version) { version_.mysql_hot_sys_var_version_ = version; }
@@ -455,6 +495,12 @@ class ObClientSessionInfo
     return OB_TEST_CAPABILITY(server_cap_, OB_CAP_PL_ROUTE);
   }
   
+  bool is_server_support_session_var_sync() const {
+    return OB_TEST_CAPABILITY(server_cap_, OB_CAP_OB_PROTOCOL_V2)
+           && OB_TEST_CAPABILITY(server_cap_, OB_CAP_PROXY_SESSION_SYNC)
+           && OB_TEST_CAPABILITY(server_cap_, OB_CAP_PROXY_SESSION_VAR_SYNC);
+  }
+  
   bool is_oracle_mode() const {
     bool is_oracle_mode = false;
     if (is_sharding_user()) {
@@ -486,6 +532,9 @@ class ObClientSessionInfo
   int64_t get_db_name_version() const { return version_.db_name_version_; }
   int64_t get_last_insert_id_version() const { return version_.last_insert_id_version_; }
   int64_t get_sess_info_version() const { return version_.sess_info_version_; }
+  SessFieldVersionHashMap& get_sess_field_version() { return version_.sess_field_version_; }
+  int inc_sess_field_version(int16_t type) { return version_.inc_sess_field_version(type); }
+
 
   void set_db_name_version(const int64_t version) { version_.db_name_version_ = version; }
 
@@ -499,7 +548,7 @@ class ObClientSessionInfo
   int set_ldg_logical_tenant_name(const common::ObString &tenant_name);
   int set_logic_tenant_name(const common::ObString &logic_tenant_name);
   int set_logic_database_name(const common::ObString &logic_database_name);
-  int update_sess_sync_info(const common::ObString& sess_info);
+  int update_sess_sync_info(const common::ObString& sess_info, common::ObSimpleTrace<4096> &trace_log);
   int get_cluster_name(common::ObString &cluster_name) const;
   int get_tenant_name(common::ObString &tenant_name) const;
   int get_vip_addr_name(common::ObString &vip_addr_name) const;
@@ -571,6 +620,7 @@ class ObClientSessionInfo
 
   int extract_all_variable_reset_sql(common::ObSqlString &sql);
   int extract_variable_reset_sql(ObServerSessionInfo &server_info, common::ObSqlString &sql);
+  int extract_user_variable_reset_sql(ObServerSessionInfo &server_info, ObSqlString &sql);
   int extract_oceanbase_variable_reset_sql(ObServerSessionInfo &server_info,
                                            common::ObSqlString &sql, bool &need_reset);
   int extract_mysql_variable_reset_sql(ObServerSessionInfo &server_info,
@@ -607,7 +657,7 @@ class ObClientSessionInfo
 
   //proxy route policy
   ObProxyRoutePolicyEnum get_proxy_route_policy() const { return proxy_route_policy_; }
-  void set_proxy_route_policy(ObProxyRoutePolicyEnum policy) { 
+  void set_proxy_route_policy(ObProxyRoutePolicyEnum policy) {
     proxy_route_policy_ = policy;
     is_proxy_route_policy_set_ = true;
   }
@@ -618,7 +668,6 @@ class ObClientSessionInfo
   void set_trans_specified_flag() { is_trans_specified_ = true; }
   void clear_trans_specified_flag() { is_trans_specified_ = false; }
   bool is_trans_specified() const { return is_trans_specified_; }
-
   void set_user_identity(const ObProxyLoginUserType identity) { user_identity_ = identity; }
   ObProxyLoginUserType get_user_identity() const { return user_identity_; }
   bool enable_analyze_internal_cmd() const;
@@ -666,10 +715,12 @@ class ObClientSessionInfo
 
   // deep copy, this function will alloc buf
   int set_start_trans_sql(const common::ObString &sql);
+  void set_xa_start_ps_id(const int32_t ps_id) { xa_start_ps_id_ = ps_id; }
   // reset start trans sql, free buf
   void reset_start_trans_sql();
-  // get start trans sql
+  // get start trans sql / xa start req pkt
   common::ObString &get_start_trans_sql() { return saved_start_trans_sql_; }
+  int32_t get_xa_start_ps_id() const { return xa_start_ps_id_; };
 
   obproxy::ObDefaultSysVarSet *get_sys_var_set() { return field_mgr_.get_sys_var_set(); }
   void set_sysvar_set_processor(ObSysVarSetProcessor &var_set_processor) { var_set_processor_ = &var_set_processor; }
@@ -731,6 +782,12 @@ class ObClientSessionInfo
   void set_group_id(const int64_t group_id) { group_id_ = group_id; }
   int64_t get_group_id() { return group_id_; }
 
+  void set_table_id(const int64_t table_id) { table_id_ = table_id; }
+  int64_t get_table_id() { return table_id_; }
+
+  void set_es_id(const int64_t es_id) { es_id_ = es_id; }
+  int64_t get_es_id() { return es_id_; }
+
   bool is_sys_hot_version_changed() const {
     return hash_version_.hot_sys_var_version_ != version_.hot_sys_var_version_;
   }
@@ -861,12 +918,17 @@ class ObClientSessionInfo
   void destroy_ps_id_addrs_map();
   void destroy_sess_info_map();
 
-  ObPsIdAddrs::ADDR_HASH_SET &get_request_send_addrs() { return request_send_addrs_; }
+  common::ObIArray<net::ObIpEndpoint> &get_request_send_addrs() { return request_send_addrs_; }
   int remove_request_send_addr(const struct sockaddr &socket_addr) {
     int ret = OB_SUCCESS;
     net::ObIpEndpoint addr(socket_addr);
-    if (OB_FAIL(request_send_addrs_.erase_refactored(addr))) {
-      PROXY_LOG(WARN, "fail to erase refactored", K(addr), K(ret));
+    for (int64_t i = 0; OB_SUCC(ret) && i < request_send_addrs_.count(); i++) {
+      if (addr == request_send_addrs_.at(i)) {
+        if (OB_FAIL(request_send_addrs_.remove(i))) {
+          PROXY_LOG(WARN, "fail to remove item", K(i), K(ret));
+        }
+        break;
+      }
     }
     return ret;
   }
@@ -941,8 +1003,12 @@ class ObClientSessionInfo
   dbconfig::ObShardUserPrivInfo up_info_;
 
   // saved start transaction sql
+  // saved xa start request packet (prepare execute)
   common::ObString saved_start_trans_sql_;
 
+  // saved xa start request's ps id
+  uint32_t xa_start_ps_id_;
+
   ObProxyLoginUserType user_identity_;
   ObSessionVarVersion version_;
   // cached variables
@@ -950,6 +1016,7 @@ class ObClientSessionInfo
   // global variables version, will be set at the first time get login responce(OK packet)
   int64_t global_vars_version_;
   // obproxy_route_addr
+  // TODO: only support IPv4, IPv6 unsupported
   int64_t obproxy_route_addr_;
 
   ObSysVarSetProcessor *var_set_processor_;
@@ -967,6 +1034,8 @@ class ObClientSessionInfo
   dbconfig::ObShardConnector *shard_conn_;
   dbconfig::ObShardProp *shard_prop_;
   int64_t group_id_;
+  int64_t table_id_;
+  int64_t es_id_;
   bool is_allow_use_last_session_;
 
   common::ObString client_host_;
@@ -991,14 +1060,14 @@ class ObClientSessionInfo
 
   ObPsIdAddrsMap ps_id_addrs_map_;
   ObPieceInfoMap piece_info_map_;
-  ObPsIdAddrs::ADDR_HASH_SET request_send_addrs_;
+  common::ObSEArray<net::ObIpEndpoint, 4> request_send_addrs_;
 
   bool is_read_only_user_;
   bool is_request_follower_user_;
 
   char text_ps_name_buf_[common::OB_MAX_TEXT_PS_NAME_LENGTH];
-  
-  SessFieldHashMap sess_info_hash_map_;  
+
+  SessFieldHashMap sess_info_hash_map_;
 
   DISALLOW_COPY_AND_ASSIGN(ObClientSessionInfo);
 };
@@ -1231,7 +1300,8 @@ inline bool ObClientSessionInfo::need_reset_session_vars(const ObServerSessionIn
            || need_reset_hot_session_vars(server_info)
            || need_reset_cold_session_vars(server_info)
            || need_reset_user_session_vars(server_info)
-           || need_reset_safe_read_snapshot(server_info);
+           || need_reset_safe_read_snapshot(server_info)
+           || need_reset_last_insert_id(server_info);
   } else {
     bret =  need_reset_common_hot_session_vars(server_info)
            || need_reset_common_cold_session_vars(server_info)
@@ -1247,7 +1317,7 @@ inline bool ObClientSessionInfo::need_reset_sess_info_vars(const ObServerSession
   bool bret = false;
   // TODO: Processing for sharding connection pools
   bret = get_sess_info_version() > server_info.get_sess_info_version();
-  PROXY_LOG(DEBUG, "need_reset_sess_info_vars", K(bret), 
+  PROXY_LOG(DEBUG, "need_reset_sess_info_vars", K(bret),
     K(get_sess_info_version()), K(server_info.get_sess_info_version()));
   return bret;
 }
diff --git a/src/obproxy/proxy/mysqllib/ob_proxy_session_info_handler.cpp b/src/obproxy/proxy/mysqllib/ob_proxy_session_info_handler.cpp
index f8f79f1b..2ffd5e99 100644
--- a/src/obproxy/proxy/mysqllib/ob_proxy_session_info_handler.cpp
+++ b/src/obproxy/proxy/mysqllib/ob_proxy_session_info_handler.cpp
@@ -49,7 +49,8 @@ int ObProxySessionInfoHandler::analyze_extra_ok_packet(ObIOBufferReader &reader,
                                                        ObClientSessionInfo &client_info,
                                                        ObServerSessionInfo &server_info,
                                                        const bool need_handle_sysvar,
-                                                       ObRespAnalyzeResult &resp_result)
+                                                       ObRespAnalyzeResult &resp_result,
+                                                       common::ObSimpleTrace<4096> &trace_log)
 {
   int ret = OB_SUCCESS;
 
@@ -65,7 +66,7 @@ int ObProxySessionInfoHandler::analyze_extra_ok_packet(ObIOBufferReader &reader,
       LOG_WARN("fail to get ok packet", K(ret));
     // save changed info
     } else if (OB_FAIL(save_changed_session_info(client_info, server_info, false,
-                                                 need_handle_sysvar, src_ok, resp_result, false))) {
+                                                 need_handle_sysvar, src_ok, resp_result, trace_log, false))) {
       LOG_WARN("fail to save changed session info", K(ret));
     } else {
       LOG_DEBUG("analyze_extra_ok_packet", K(src_ok));
@@ -95,6 +96,7 @@ int ObProxySessionInfoHandler::rebuild_ok_packet(ObIOBufferReader &reader,
                                                  const bool is_auth_request,
                                                  const bool need_handle_sysvar,
                                                  ObRespAnalyzeResult &resp_result,
+                                                 common::ObSimpleTrace<4096> &trace_log,
                                                  const bool is_save_to_common_sys)
 {
   int ret = OB_SUCCESS;
@@ -118,6 +120,7 @@ int ObProxySessionInfoHandler::rebuild_ok_packet(ObIOBufferReader &reader,
                                           need_handle_sysvar,
                                           src_ok,
                                           resp_result,
+                                          trace_log,
                                           is_save_to_common_sys))) {
       LOG_WARN("fail to save changed session info", K(is_auth_request), K(ret));
     } else {
@@ -173,6 +176,7 @@ int ObProxySessionInfoHandler::rewrite_query_req_by_sharding(ObClientSessionInfo
   obmysql::ObMySQLCmd tmp_req_cmd = obmysql::OB_MYSQL_COM_MAX_NUM;
 
   client_request.reset(false);
+  client_request.set_user_identity(USER_TYPE_SHARDING);
   ObMysqlRequestAnalyzer::analyze_request(target_ctx, tmp_auth_req,
                                           client_request, tmp_req_cmd, status);
 
@@ -605,9 +609,9 @@ inline int ObProxySessionInfoHandler::rewrite_common_login_req(ObClientSessionIn
   }
 
   if (param.use_ob_protocol_v2_) {
-    cap |= (OB_CAP_OB_PROTOCOL_V2 | OB_CAP_PROXY_NEW_EXTRA_INFO | OB_CAP_PROXY_REROUTE | OB_CAP_PROXY_SESSION_SYNC);
+    cap |= (OB_CAP_OB_PROTOCOL_V2 | OB_CAP_PROXY_NEW_EXTRA_INFO | OB_CAP_PROXY_REROUTE | OB_CAP_PROXY_SESSION_SYNC | OB_CAP_PROXY_SESSION_VAR_SYNC);
   } else {
-    cap &= ~(OB_CAP_OB_PROTOCOL_V2 | OB_CAP_PROXY_NEW_EXTRA_INFO | OB_CAP_PROXY_REROUTE | OB_CAP_PROXY_SESSION_SYNC);
+    cap &= ~(OB_CAP_OB_PROTOCOL_V2 | OB_CAP_PROXY_NEW_EXTRA_INFO | OB_CAP_PROXY_REROUTE | OB_CAP_PROXY_SESSION_SYNC | OB_CAP_PROXY_SESSION_VAR_SYNC);
   }
 
   param.cluster_name_ = cluster_name;
@@ -727,7 +731,9 @@ int ObProxySessionInfoHandler::handle_capability_flag_var(ObClientSessionInfo &c
     client_info.set_client_ob_capability(client_cap);
     client_info.set_server_ob_capability(server_cap);
 
-    LOG_INFO("succ to set ob_capability_flag", K(client_cap), K(server_cap), K(orig_client_cap), K(orig_server_cap),
+    LOG_INFO("succ to set ob_capability_flag in negotiation",
+             K(client_cap), K(server_cap), K(orig_client_cap), K(orig_server_cap),
+             "client_support_ob_v2", client_info.is_client_support_ob20_protocol(),
              "server_support_checksum", server_info.is_checksum_supported(), 
              "server_support_ob_v2", server_info.is_ob_protocol_v2_supported(),
              K(is_auth_request));
@@ -1113,10 +1119,13 @@ int ObProxySessionInfoHandler::save_changed_session_info(ObClientSessionInfo &cl
                                                          const bool need_handle_sysvar,
                                                          OMPKOK &ok_pkt,
                                                          ObRespAnalyzeResult &resp_result,
+                                                         common::ObSimpleTrace<4096> &trace_log,
                                                          const bool is_save_to_common_sys)
 {
   int ret = OB_SUCCESS;
   // 1. save server status
+  trace_log.log_it("[svr_status]", "in_trans", ok_pkt.get_server_status().status_flags_.OB_SERVER_STATUS_IN_TRANS,
+                   "ac", ok_pkt.get_server_status().status_flags_.OB_SERVER_STATUS_AUTOCOMMIT);
   if (is_auth_request) {
     bool is_oracle_mode = 1 == ok_pkt.get_server_status().status_flags_.OB_SERVER_STATUS_RESERVED;
     LOG_DEBUG("will set oracle mode ", K(is_oracle_mode));
@@ -1384,19 +1393,48 @@ int ObProxySessionInfoHandler::assign_session_vars_version(
 }
 
 int ObProxySessionInfoHandler::save_changed_sess_info(ObClientSessionInfo& client_info,
-    ObServerSessionInfo& server_info, Ob20ExtraInfo& extra_info)
+    ObServerSessionInfo& server_info, Ob20ExtraInfo& extra_info, common::ObSimpleTrace<4096> &trace_log, bool is_only_sync_trans_sess)
 {
   int ret = OB_SUCCESS;
   if (extra_info.exist_sess_info()) {
-    if (OB_FAIL(client_info.update_sess_sync_info(extra_info.get_sess_info()))) {
-      LOG_WARN("failed to update sess sync info", K(ret), K(extra_info));
+    ObString sess_info;
+    extra_info.reset_sess_info_iterate_idx();
+    for (uint32_t i = 0; OB_SUCC(ret) && i < extra_info.get_sess_info_count(); i++) {
+      if (OB_FAIL(extra_info.get_next_sess_info(sess_info))) {
+        LOG_WARN("fail to update sess sync info", K(ret));
+      } else if (OB_FAIL(client_info.update_sess_sync_info(sess_info, trace_log))) {
+        LOG_WARN("fail to update sess sync info", K(ret), K(extra_info));
+      }
     }
   }
+  bool need_update_version = true;
   if (OB_SUCC(ret)) {
-    int64_t c_sess_info_version = client_info.get_sess_info_version();
-    server_info.set_sess_info_version(c_sess_info_version);
+    SessFieldVersionHashMap::iterator last = client_info.get_sess_field_version().end();
+    SessFieldVersionHashMap::iterator it = client_info.get_sess_field_version().begin();
+    for (; it != last && OB_SUCC(ret); ++it) {
+      int16_t sess_info_type = it->first;
+      int64_t client_version = 0;
+
+      if (OB_FAIL(ObProxyTraceUtils::get_sess_field_version(client_version , sess_info_type, client_info.get_sess_field_version()))) {
+        LOG_WARN("fail to set client session field version", K(ret), K(sess_info_type));
+      } else if (is_only_sync_trans_sess && !ObProto20Utils::is_trans_related_sess_info(sess_info_type)) {
+        // internal routing trans not support sync session info idempotent
+        // here keep session info syncing in some case for only internal routing trans as temporary processing
+        int64_t server_version = 0;
+        if (OB_FAIL(ObProxyTraceUtils::get_sess_field_version(server_version, sess_info_type, server_info.get_sess_field_version()))) {
+          LOG_WARN("fail to get server session field version", K(ret), K(sess_info_type));
+        } else if (client_version > server_version) {
+          need_update_version = false;
+        }
+      } else if (OB_FAIL(server_info.get_sess_field_version().set_refactored(sess_info_type, client_version, 1))) {
+        LOG_WARN("fail to set sess field versoin", K(sess_info_type), K(ret));
+      }
+    }
   }
 
+  if (OB_SUCC(ret) && need_update_version) {
+    server_info.set_sess_info_version(client_info.get_sess_info_version());
+  }
   return ret;
 }
 
diff --git a/src/obproxy/proxy/mysqllib/ob_proxy_session_info_handler.h b/src/obproxy/proxy/mysqllib/ob_proxy_session_info_handler.h
index 63086547..aac0cc17 100644
--- a/src/obproxy/proxy/mysqllib/ob_proxy_session_info_handler.h
+++ b/src/obproxy/proxy/mysqllib/ob_proxy_session_info_handler.h
@@ -15,6 +15,7 @@
 #include "rpc/obmysql/ob_mysql_packet.h"
 #include "utils/ob_proxy_lib.h"
 #include "proxy/mysqllib/ob_2_0_protocol_struct.h"
+#include "lib/oblog/ob_simple_trace.h"
 
 namespace oceanbase
 {
@@ -73,6 +74,7 @@ class ObProxySessionInfoHandler
                                        const bool need_handle_sysvar,
                                        obmysql::OMPKOK &ok_pkt,
                                        ObRespAnalyzeResult &resp_result,
+                                       common::ObSimpleTrace<4096> &trace_log,
                                        const bool is_save_to_common_sys = false);
 
   // The @reader must has only one receive completed ok packet,
@@ -85,13 +87,15 @@ class ObProxySessionInfoHandler
                                const bool is_auth_request,
                                const bool need_handle_sysvar,
                                ObRespAnalyzeResult &resp_result,
+                               common::ObSimpleTrace<4096> &trace_log,
                                const bool is_save_to_common_sys);
 
   static int analyze_extra_ok_packet(event::ObIOBufferReader &reader,
                                      ObClientSessionInfo &client_info,
                                      ObServerSessionInfo &server_info,
                                      const bool need_handle_sysvar,
-                                     ObRespAnalyzeResult &resp_result);
+                                     ObRespAnalyzeResult &resp_result,
+                                     common::ObSimpleTrace<4096> &trace_log);
 
   static int rewrite_query_req_by_sharding(ObClientSessionInfo &client_info,
                                            ObProxyMysqlRequest &client_request,
@@ -171,7 +175,9 @@ class ObProxySessionInfoHandler
                                                       bool &need_save);
   static int save_changed_sess_info(ObClientSessionInfo& client_info,
                                     ObServerSessionInfo& server_info,
-                                    Ob20ExtraInfo& extra_info);
+                                    Ob20ExtraInfo& extra_info,
+                                    common::ObSimpleTrace<4096> &trace_log,
+                                    bool is_only_sync_trans_sess);
 
 private:
   static ObProxySysVarType get_sys_var_type(const common::ObString &var_name);
diff --git a/src/obproxy/proxy/mysqllib/ob_resultset_fetcher.h b/src/obproxy/proxy/mysqllib/ob_resultset_fetcher.h
index 465b246a..a188b38a 100644
--- a/src/obproxy/proxy/mysqllib/ob_resultset_fetcher.h
+++ b/src/obproxy/proxy/mysqllib/ob_resultset_fetcher.h
@@ -45,6 +45,7 @@
     } \
   }
 
+// limit max length
 #define PROXY_EXTRACT_STRBUF_FIELD_MYSQL(result, column_name, field, max_length, real_length) \
   if (OB_SUCCESS == ret) { \
     ObString str_value; \
@@ -66,6 +67,27 @@
     } \
   }
 
+// unlimit max length
+#define PROXY_EXTRACT_STRBUF_FIELD_MYSQL_UNLIMIT_LENGTH(result, column_name, field, real_length, allocator) \
+if (OB_SUCCESS == ret) { \
+  ObString str_value; \
+  if (OB_SUCCESS == (ret = (result).get_varchar(column_name, str_value))) { \
+    if (str_value.empty()) { \
+      real_length = 0;             \
+      field = NULL; \
+    } else if (OB_ISNULL(field = static_cast<char *>(allocator.alloc(str_value.length() + 1)))) { \
+      ret = OB_ALLOCATE_MEMORY_FAILED; \
+      LOG_WARN("fail to allc part key name", K(field), K(str_value.length()), K(ret)); \
+    } else { \
+      MEMCPY(field, str_value.ptr(), str_value.length()); \
+      real_length = str_value.length();                   \
+      field[str_value.length()] = '\0'; \
+    } \
+  } else { \
+    PROXY_LOG(WARN, "fail to extract strbuf field mysql", K(column_name), K(real_length), K(ret)); \
+  } \
+}
+
 namespace oceanbase
 {
 namespace common
diff --git a/src/obproxy/proxy/mysqllib/ob_session_field_mgr.h b/src/obproxy/proxy/mysqllib/ob_session_field_mgr.h
index cbe09956..7d21e0cf 100644
--- a/src/obproxy/proxy/mysqllib/ob_session_field_mgr.h
+++ b/src/obproxy/proxy/mysqllib/ob_session_field_mgr.h
@@ -108,10 +108,10 @@ enum ObSessionFieldStat
 
 enum ObSessionVarType
 {
-  OB_SESSION_USER_VAR = 0,
-  OB_SESSION_SYS_VAR,
-  OB_SESSION_COMMON_SYS_VAR,
-  OB_SESSION_MYSQL_SYS_VAR,
+  OB_SESSION_USER_VAR = 0,   // user variable
+  OB_SESSION_SYS_VAR,        // system variable only oceanbase supported
+  OB_SESSION_COMMON_SYS_VAR, // system variable oceanbase and mysql both supported
+  OB_SESSION_MYSQL_SYS_VAR,  // system variable only mysql supported
   OB_SESSION_VAR_MAX,
 };
 
diff --git a/src/obproxy/proxy/plugins/ob_mysql_request_compress_transform_plugin.cpp b/src/obproxy/proxy/plugins/ob_mysql_request_compress_transform_plugin.cpp
index a7feb83e..d886b612 100644
--- a/src/obproxy/proxy/plugins/ob_mysql_request_compress_transform_plugin.cpp
+++ b/src/obproxy/proxy/plugins/ob_mysql_request_compress_transform_plugin.cpp
@@ -149,9 +149,12 @@ int ObMysqlRequestCompressTransformPlugin::build_compressed_packet(bool is_last_
       PROXY_API_LOG(WARN, "fail to build related extra info all", K(ret));
     } else {
       ObMysqlServerSession *server_session = sm_->get_server_session();
+      ObMysqlClientSession *client_session = sm_->get_client_session();
+      const bool is_weak_read = (WEAK == sm_->trans_state_.get_trans_consistency_level(client_session->get_session_info()));
       Ob20ProtocolHeaderParam ob20_head_param(server_session->get_server_sessid(), request_id_, compressed_seq_,
-                                              compressed_seq_, is_last_segment, is_need_reroute,
-                                              server_session->get_session_info().is_new_extra_info_supported());
+                                              compressed_seq_, is_last_segment, is_weak_read, is_need_reroute,
+                                              server_session->get_session_info().is_new_extra_info_supported(),
+                                              client_session->is_trans_internal_routing());
       if (OB_FAIL(ObProto20Utils::consume_and_compress_data(local_reader_, mio_buffer_, local_reader_->read_avail(),
                                                             ob20_head_param, &extra_info))) {
         PROXY_API_LOG(WARN, "fail to consume and compress data with OB20", K(ret));
diff --git a/src/obproxy/proxy/plugins/ob_mysql_request_compress_transform_plugin.h b/src/obproxy/proxy/plugins/ob_mysql_request_compress_transform_plugin.h
index f586fffd..6a463892 100644
--- a/src/obproxy/proxy/plugins/ob_mysql_request_compress_transform_plugin.h
+++ b/src/obproxy/proxy/plugins/ob_mysql_request_compress_transform_plugin.h
@@ -101,10 +101,10 @@ class ObMysqlRequestCompressGlobalPlugin : public ObGlobalPlugin
     PROXY_API_LOG(DEBUG, "need_enable_plugin",
                   "request_content_length", sm->trans_state_.trans_info_.request_content_length_,
                   "enable_compression_protocol", sm->trans_state_.mysql_config_params_->enable_compression_protocol_,
-                  "enable_ob_protocol_v2", sm->trans_state_.mysql_config_params_->enable_ob_protocol_v2_);
+                  "enable_ob_protocol_v2", sm->is_enable_ob_protocol_v2());
     return (sm->trans_state_.trans_info_.request_content_length_ > 0
             && (sm->trans_state_.mysql_config_params_->enable_compression_protocol_
-                || sm->trans_state_.mysql_config_params_->enable_ob_protocol_v2_));
+                || sm->is_enable_ob_protocol_v2()));
   }
 
 private:
diff --git a/src/obproxy/proxy/plugins/ob_mysql_response_compress_transform_plugin.cpp b/src/obproxy/proxy/plugins/ob_mysql_response_compress_transform_plugin.cpp
index f85cda26..ea4105a5 100644
--- a/src/obproxy/proxy/plugins/ob_mysql_response_compress_transform_plugin.cpp
+++ b/src/obproxy/proxy/plugins/ob_mysql_response_compress_transform_plugin.cpp
@@ -152,13 +152,31 @@ int ObMysqlResponseCompressTransformPlugin::consume(event::ObIOBufferReader *rea
       // get consume size again, for trim the last packet
       consume_size = local_transfer_reader_->read_avail() - analyze_result.get_reserved_len_for_ob20_ok();
 
-      // just send all data in local_transfer_reader_
-      if (consume_size != (produce_size = produce(local_transfer_reader_, consume_size))) {
-        ret = OB_ERR_UNEXPECTED;
-        PROXY_API_LOG(WARN, "fail to produce", "expected size", consume_size,
-                      "actual size", produce_size, K(ret));
-      } else if (OB_FAIL(local_transfer_reader_->consume(consume_size))) {
-        PROXY_API_LOG(WARN, "fail to consume local transfer reader", K(consume_size), K(ret));
+      // Here is a situation:
+      //   under the 2.0 protocol, the last 4 tail checksum bytes were not read,
+      //   but the Tunnel sent all the MySQL content.
+      //   For ClientVC, after receiving all MySQL content,
+      //   it does not judge the end of the response based on the content,
+      //   but judges based on write_state_.vio_.ntodo(),
+      //   but because Tunnel has not read the last 4 tail checksum bytes,
+      //   Tunnel will not modify nbytes in ntodo,
+      //   causing ClientVC to think Have not finished receiving, continue to wait, do not continue to process.
+      //   After the Tunnel receives the last 4 tail checksum bytes,
+      //   since these 4 bytes are not sent to the Client,
+      //   the Client VC will not be triggered again.
+      //   As a result, the Tunnel ends directly, and the ClientVC How Hung lives
+      //
+      // Therefore, it is modified here that if the entire Tunnel is not over,
+      //   the last bit of MySQL packet content will not be sent, and will not be sent until the entire Tunnel is over
+      if (!analyze_result.is_last_ok_handled() || analyzer_->is_stream_finished()) {
+        // just send all data in local_transfer_reader_
+        if (consume_size != (produce_size = produce(local_transfer_reader_, consume_size))) {
+          ret = OB_ERR_UNEXPECTED;
+          PROXY_API_LOG(WARN, "fail to produce", "expected size", consume_size,
+                        "actual size", produce_size, K(ret));
+        } else if (OB_FAIL(local_transfer_reader_->consume(consume_size))) {
+          PROXY_API_LOG(WARN, "fail to consume local transfer reader", K(consume_size), K(ret));
+        }
       }
     }
   }
diff --git a/src/obproxy/proxy/plugins/ob_mysql_response_compress_transform_plugin.h b/src/obproxy/proxy/plugins/ob_mysql_response_compress_transform_plugin.h
index d054c431..d2c24835 100644
--- a/src/obproxy/proxy/plugins/ob_mysql_response_compress_transform_plugin.h
+++ b/src/obproxy/proxy/plugins/ob_mysql_response_compress_transform_plugin.h
@@ -95,8 +95,6 @@ class ObMysqlResponseCompressGlobalPlugin : public ObGlobalPlugin
   {
     return (!sm->trans_state_.trans_info_.client_request_.is_internal_cmd()
             && NULL != sm->client_session_
-            // inner sql will received compeleted, no need plugin
-            && !sm->client_session_->is_proxy_mysql_client_
             && ObMysqlTransact::SERVER_SEND_REQUEST == sm->trans_state_.current_.send_action_
             && !sm->trans_state_.trans_info_.server_response_.get_analyze_result().is_decompressed()
             && (ObProxyProtocol::PROTOCOL_CHECKSUM == sm->get_server_session_protocol()
diff --git a/src/obproxy/proxy/plugins/ob_mysql_response_cursor_transform_plugin.cpp b/src/obproxy/proxy/plugins/ob_mysql_response_cursor_transform_plugin.cpp
index 2c9bbea3..5850cb38 100644
--- a/src/obproxy/proxy/plugins/ob_mysql_response_cursor_transform_plugin.cpp
+++ b/src/obproxy/proxy/plugins/ob_mysql_response_cursor_transform_plugin.cpp
@@ -343,6 +343,7 @@ int ObMysqlResponseCursorTransformPlugin::skip_field_value(const char *&data, in
         break;
       }
       case OB_MYSQL_TYPE_GEOMETRY:
+      case OB_MYSQL_TYPE_JSON:
       case OB_MYSQL_TYPE_BLOB:
       case OB_MYSQL_TYPE_LONG_BLOB:
       case OB_MYSQL_TYPE_MEDIUM_BLOB:
diff --git a/src/obproxy/proxy/plugins/ob_mysql_response_ob20_transform_plugin.cpp b/src/obproxy/proxy/plugins/ob_mysql_response_ob20_transform_plugin.cpp
index 3111dff6..613690e2 100644
--- a/src/obproxy/proxy/plugins/ob_mysql_response_ob20_transform_plugin.cpp
+++ b/src/obproxy/proxy/plugins/ob_mysql_response_ob20_transform_plugin.cpp
@@ -154,6 +154,7 @@ int ObMysqlResponseOb20ProtocolTransformPlugin::build_ob20_head_and_extra(ObMIOB
     uint8_t last_compressed_seq = static_cast<uint8_t>(client_session->get_compressed_seq() + 1);
     const bool is_new_extra_info = client_session->get_session_info().is_client_support_new_extra_info();
     bool is_extra_info_exist = false;
+    bool is_trans_internal_routing = false;
     
     if (OB_FAIL(ObProto20Utils::fill_proto20_extra_info(write_buf, &extra_info, is_new_extra_info, 
                                                         payload_len, tail_crc_, is_extra_info_exist))) {
@@ -165,9 +166,10 @@ int ObMysqlResponseOb20ProtocolTransformPlugin::build_ob20_head_and_extra(ObMIOB
                                                            ob20_head.request_id_,
                                                            client_session->get_cs_id(),
                                                            is_last_packet,
-                                                           false,
+                                                           false, false,
                                                            is_extra_info_exist,
-                                                           is_new_extra_info))) {
+                                                           is_new_extra_info,
+                                                           is_trans_internal_routing))) {
       LOG_WARN("fail to fill ob20 head", K(ret));
     } else {
       client_session->set_compressed_seq(last_compressed_seq);
diff --git a/src/obproxy/proxy/plugins/ob_trim_okpacket_transform_plugin.h b/src/obproxy/proxy/plugins/ob_trim_okpacket_transform_plugin.h
index f92e4662..d95dc327 100644
--- a/src/obproxy/proxy/plugins/ob_trim_okpacket_transform_plugin.h
+++ b/src/obproxy/proxy/plugins/ob_trim_okpacket_transform_plugin.h
@@ -181,7 +181,7 @@ class ObTrimOkPakcetTransformPlugin : public ObTransformationPlugin
         if (OB_SUCCESS != (ret = src_ok.decode())) {
           PROXY_API_LOG(WARN, "fail to decode ok packet", K(src_ok), K(ret));
         } else if (OB_SUCCESS != (ret = ObProxySessionInfoHandler::save_changed_session_info(
-            client_info, server_info, sm_->trans_state_.is_auth_request_, NULL, src_ok, analyze_result))) {
+            client_info, server_info, sm_->trans_state_.is_auth_request_, NULL, src_ok, analyze_result, sm_->trans_state_.trace_log_))) {
           _PROXY_API_LOG(WARN, "fail to save changed session info, is_auth_request=%d, ret=%d",
                          sm_->trans_state_.is_auth_request_, ret);
         }
diff --git a/src/obproxy/proxy/route/ob_mysql_route.cpp b/src/obproxy/proxy/route/ob_mysql_route.cpp
index 60cd0ecc..008ba529 100644
--- a/src/obproxy/proxy/route/ob_mysql_route.cpp
+++ b/src/obproxy/proxy/route/ob_mysql_route.cpp
@@ -493,35 +493,33 @@ inline int ObMysqlRoute::check_and_rebuild_call_params()
     ObSessionSysField *sys_filed = NULL;
     ObSessionUserField *user_filed = NULL;
     for (int32_t i = 0; OB_SUCC(ret) && i < call_info.param_count_; ++i) {
-      ObProxyCallParam &call_param = call_info.params_.at(i);
-      if (CALL_TOKEN_SYS_VAR == call_param.type_) {
+      ObProxyCallParam* call_param = call_info.params_.at(i);
+      if (CALL_TOKEN_SYS_VAR == call_param->type_) {
         sys_filed = NULL;
-        if (OB_FAIL(client_info.get_sys_variable(call_param.str_value_.string_, sys_filed))) {
-          LOG_INFO("fail to find sys variables", "name", call_param.str_value_.string_, K(ret));
+        if (OB_FAIL(client_info.get_sys_variable(call_param->str_value_.config_string_, sys_filed))) {
+          LOG_INFO("fail to find sys variables", "name", call_param->str_value_.config_string_, K(ret));
         } else if (NULL != sys_filed) {
-          char *buf = call_param.str_value_.buf_;
-          const int64_t max_size = call_param.str_value_.get_max_size();
+          char buf[OBPROXY_MAX_STRING_VALUE_LENGTH];
           int64_t pos = 0;
-          if (OB_FAIL(sys_filed->value_.print_sql_literal(buf, max_size, pos))) {
+          if (OB_FAIL(sys_filed->value_.print_sql_literal(buf, OBPROXY_MAX_STRING_VALUE_LENGTH, pos))) {
             LOG_INFO("fail to print sql literal", K(pos), K(i), KPC(sys_filed), K(ret));
           } else {
             ObString new_value(pos, buf);
-            call_param.str_value_.set(new_value);
+            call_param->str_value_.set_value(new_value);
           }
         }
-      } else if (CALL_TOKEN_USER_VAR == call_param.type_) {
+      } else if (CALL_TOKEN_USER_VAR == call_param->type_) {
         user_filed = NULL;
-        if (OB_FAIL(client_info.get_user_variable(call_param.str_value_.string_, user_filed))) {
-          LOG_INFO("fail to find sys variables, ignore", "name", call_param.str_value_.string_, K(ret));
+        if (OB_FAIL(client_info.get_user_variable(call_param->str_value_.config_string_, user_filed))) {
+          LOG_INFO("fail to find sys variables", K_(call_param->str_value_.config_string), K(ret));
         } else if (NULL != user_filed) {
-          char *buf = call_param.str_value_.buf_;
-          const int64_t max_size = call_param.str_value_.get_max_size();
+          char buf[OBPROXY_MAX_STRING_VALUE_LENGTH];
           int64_t pos = 0;
-          if (OB_FAIL(user_filed->value_.print_plain_str_literal(buf, max_size, pos))) {
+          if (OB_FAIL(user_filed->value_.print_plain_str_literal(buf, OBPROXY_MAX_STRING_VALUE_LENGTH, pos))) {
             LOG_INFO("fail to print sql literal, ignore", K(pos), K(i), KPC(user_filed), K(ret));
           } else {
             ObString new_value(pos, buf);
-            call_param.str_value_.set(new_value);
+            call_param->str_value_.set_value(new_value);
           }
         }
       }
diff --git a/src/obproxy/proxy/route/ob_route_struct.h b/src/obproxy/proxy/route/ob_route_struct.h
index 6ca19bce..d6bfbdba 100644
--- a/src/obproxy/proxy/route/ob_route_struct.h
+++ b/src/obproxy/proxy/route/ob_route_struct.h
@@ -203,9 +203,7 @@ int ObProxyRerouteInfo::deserialize_struct_content(const char *buf, const int64_
     if (ObAddr::IPV4 == version) {
       replica_.server_.set_ipv4_addr(ipv4, port);
     } else {
-      // must IPV6, not support yet, TODO open below later
-      //server_.set_ipv6_addr(ipv6_high, ipv6_low, port);
-      replica_.server_.reset();
+      replica_.server_.set_ipv6_addr(ipv6_high, ipv6_low, port);
     }
   }
   int64_t table_name_len = 0;
@@ -233,7 +231,7 @@ inline int ObProxyReplicaLocation::add_addr(const char *ip, const int64_t port)
   int ret = common::OB_SUCCESS;
   if (OB_UNLIKELY(NULL == ip || port <= 0)) {
     ret = common::OB_INVALID_ARGUMENT;
-  } else if (OB_UNLIKELY(!server_.set_ipv4_addr(ip, static_cast<int32_t>(port)))) {
+  } else if (OB_UNLIKELY(!server_.set_ip_addr(ip, static_cast<int32_t>(port)))) {
     ret = common::OB_INVALID_ARGUMENT;
   }
   return ret;
@@ -517,6 +515,7 @@ struct ObTableEntryName
   bool is_sys_tenant() const;
   bool is_oceanbase_db() const;
   bool is_all_dummy_table() const;
+  bool is_binlog_table() const;
   int deep_copy(const ObTableEntryName &name, char *buf, const int64_t buf_len);
   void shallow_copy(const ObTableEntryName &name);
   void shallow_copy(const common::ObString &cluster_name, const common::ObString &tenant_name,
@@ -525,7 +524,6 @@ struct ObTableEntryName
                     const common::ObString &database_name, const common::ObString &package_name,
                     const common::ObString &table_name);
 
-
   common::ObString cluster_name_;
   common::ObString tenant_name_;
   common::ObString database_name_;
@@ -585,6 +583,12 @@ inline bool ObTableEntryName::is_all_dummy_table() const
   return is_valid() && table_name_[0] == '_' && all_dummy_tname_str == table_name_;
 }
 
+inline bool ObTableEntryName::is_binlog_table() const
+{
+  static const common::ObString binlog_tname_str(share::OB_ALL_BINLOG_DUMMY_TNAME);
+  return is_valid() && binlog_tname_str == table_name_;
+}
+
 inline bool ObTableEntryName::is_ob_dummy() const
 {
   return is_oceanbase_db() && is_all_dummy_table();
diff --git a/src/obproxy/proxy/route/ob_route_utils.cpp b/src/obproxy/proxy/route/ob_route_utils.cpp
index cf72edb6..0b702046 100644
--- a/src/obproxy/proxy/route/ob_route_utils.cpp
+++ b/src/obproxy/proxy/route/ob_route_utils.cpp
@@ -64,20 +64,12 @@ static const char *PROXY_TENANT_SCHEMA_SQL               =
     "ORDER BY %s ASC, role ASC LIMIT %ld";
 
 static const char *PROXY_PART_INFO_SQL                   =
-    "SELECT /*+READ_CONSISTENCY(WEAK)*/ template_num, part_level, part_num, part_type, part_space, part_expr, "
-    "part_interval_bin, interval_start_bin, sub_part_num, sub_part_type, sub_part_space, "
-    "sub_part_expr, def_sub_part_interval_bin, def_sub_interval_start_bin, "
-    "part_key_num, part_key_name, part_key_type, part_key_idx, part_key_level, part_key_extra, "
-    "spare1, spare2, spare4, spare5 "
+    "SELECT /*+READ_CONSISTENCY(WEAK)*/ * "
     "FROM oceanbase.%s "
     "WHERE table_id = %lu order by part_key_idx LIMIT %d;";
 
 static const char *PROXY_PART_INFO_SQL_V4                =
-    "SELECT /*+READ_CONSISTENCY(WEAK)*/ template_num, part_level, part_num, part_type, part_space, part_expr, "
-    "part_interval_bin, interval_start_bin, sub_part_num, sub_part_type, sub_part_space, "
-    "sub_part_expr, def_sub_part_interval_bin, def_sub_interval_start_bin, "
-    "part_key_num, part_key_name, part_key_type, part_key_idx, part_key_level, part_key_extra, "
-    "part_key_collation_type, part_key_rowkey_idx, part_key_expr, part_key_length, part_key_precision, part_key_scale "
+    "SELECT /*+READ_CONSISTENCY(WEAK)*/ * "
     "FROM oceanbase.%s "
     "WHERE table_id = %lu and tenant_name = '%.*s' order by part_key_idx LIMIT %d;";
 
@@ -98,17 +90,17 @@ static const char *PROXY_FIRST_PART_SQL_V4 =
     "WHERE table_id = %lu and tenant_name = '%.*s' LIMIT %ld;";
 
 static const char *PROXY_SUB_PART_SQL                    =
-  "SELECT /*+READ_CONSISTENCY(WEAK)*/ part_id, sub_part_id, high_bound_val_bin "
+  "SELECT /*+READ_CONSISTENCY(WEAK)*/ part_id, sub_part_id, part_name, high_bound_val_bin "
   "FROM oceanbase.%s "
   "WHERE table_id = %lu and part_id = %ld LIMIT %ld;";
 
 static const char *PROXY_NON_TEMPLATE_SUB_PART_SQL       =
-  "SELECT /*+READ_CONSISTENCY(WEAK)*/ part_id, sub_part_id, high_bound_val_bin "
+  "SELECT /*+READ_CONSISTENCY(WEAK)*/ part_id, sub_part_id, part_name, high_bound_val_bin "
   "FROM oceanbase.%s "
   "WHERE table_id = %lu LIMIT %ld;";
 
-static const char *PROXY_SUB_PART_SQL_V4 =
-  "SELECT /*+READ_CONSISTENCY(WEAK)*/ tablet_id, part_id, sub_part_id, high_bound_val_bin "
+static const char *PROXY_SUB_PART_SQL_V4                 =
+  "SELECT /*+READ_CONSISTENCY(WEAK)*/ tablet_id, part_id, sub_part_id, part_name, high_bound_val_bin "
   "FROM oceanbase.%s "
   "WHERE table_id = %lu and tenant_name = '%.*s' LIMIT %ld;";
 
@@ -132,6 +124,9 @@ static const char *PROXY_ROUTINE_SCHEMA_SQL_V4 =
   "WHERE tenant_name = '%.*s' and database_name = '%.*s' and package_name = '%.*s' "
   "and routine_name = '%.*s';";
 
+static const char *PROXY_BINLOG_ADDR_SQL =
+  "show binlog server for tenant `%.*s`.`%.*s`";
+
 static void get_tenant_name(const ObString &origin_tenant_name, char *new_tenant_name_buf, ObString &new_tenant_name) {
   new_tenant_name = origin_tenant_name;
   int32_t pos = 0;
@@ -315,6 +310,32 @@ int ObRouteUtils::get_sub_part_sql(char *sql_buf,
   return ret;
 }
 
+int ObRouteUtils::get_binlog_entry_sql(char *sql_buf,
+                                       const int64_t buf_len,
+                                       const ObString &cluster_name,
+                                       const ObString &tenant_name)
+{
+  int ret = OB_SUCCESS;
+  if (OB_ISNULL(sql_buf) || OB_UNLIKELY(buf_len <= 0)
+      || OB_UNLIKELY(cluster_name.empty())
+      || OB_UNLIKELY(tenant_name.empty())) {
+    ret = OB_INVALID_ARGUMENT;
+    LOG_WARN("invalid input value", LITERAL_K(sql_buf), K(buf_len), K(cluster_name), K(tenant_name), K(ret));
+  } else {
+    int64_t len = 0;
+    len = static_cast<int64_t>(snprintf(sql_buf, buf_len, PROXY_BINLOG_ADDR_SQL,
+                                        cluster_name.length(), cluster_name.ptr(),
+                                        tenant_name.length(), tenant_name.ptr()));
+
+    if (OB_UNLIKELY(len <= 0) || OB_UNLIKELY(len >= buf_len)) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("fail to fill binlog sql", K(sql_buf), K(len), K(buf_len), K(ret));
+    }
+  }
+
+  return ret;
+}
+
 bool is_fake_ip_port(const char *ip_str, const int64_t port)
 {
   const ObString fake_ip("0.0.0.0");
@@ -328,7 +349,7 @@ int ObRouteUtils::fetch_table_entry(ObResultSetFetcher &rs_fetcher,
 {
   int ret = OB_SUCCESS;
   int64_t tmp_real_str_len = 0;
-  char ip_str[OB_IP_STR_BUFF];
+  char ip_str[MAX_IP_ADDR_LENGTH];
   ip_str[0] = '\0';
   int64_t port = 0;
   uint64_t table_id = OB_INVALID_ID;
@@ -355,7 +376,7 @@ int ObRouteUtils::fetch_table_entry(ObResultSetFetcher &rs_fetcher,
     replica_type = -1;
     table_type = -1;
 
-    PROXY_EXTRACT_STRBUF_FIELD_MYSQL(rs_fetcher, "svr_ip", ip_str, OB_IP_STR_BUFF, tmp_real_str_len);
+    PROXY_EXTRACT_STRBUF_FIELD_MYSQL(rs_fetcher, "svr_ip", ip_str, MAX_IP_ADDR_LENGTH, tmp_real_str_len);
     PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "sql_port", port, int64_t);
     PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "table_id", table_id, uint64_t);
     PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "role", role, int64_t);
@@ -515,6 +536,32 @@ int ObRouteUtils::fetch_table_entry(ObResultSetFetcher &rs_fetcher,
   return ret;
 }
 
+int ObRouteUtils::split_part_expr(ObString expr, ObIArray<ObString> &arr)
+{
+  int ret = OB_SUCCESS;
+  ObString tmp;
+  while (OB_SUCC(ret) && !expr.empty()) {
+    tmp = expr.split_on(',').trim();
+    if (tmp.empty()) {
+      tmp = expr.trim();
+      expr.reset();
+    }
+    if (tmp[0] == '`') {
+      tmp.assign_ptr(tmp.ptr() + 1, tmp.length() - 1);
+    }
+    if (tmp[tmp.length() - 1] == '`') {
+      tmp.assign_ptr(tmp.ptr(), tmp.length() - 1);
+    }
+    if (OB_FAIL(arr.push_back(tmp))) {
+      LOG_WARN("fail to push back", K(tmp), K(ret));
+    } else {
+      LOG_DEBUG("succ to push back", K(tmp));
+    }
+  }
+  return ret; 
+}
+
+
 int ObRouteUtils::fetch_part_info(ObResultSetFetcher &rs_fetcher, ObProxyPartInfo &part_info, const int64_t cluster_version)
 {
   int ret = OB_SUCCESS;
@@ -522,6 +569,8 @@ int ObRouteUtils::fetch_part_info(ObResultSetFetcher &rs_fetcher, ObProxyPartInf
   ObPartitionLevel part_level = PARTITION_LEVEL_ONE;
   int64_t part_key_num = 1;
   int64_t template_num = 1;
+  ObString part_expr;
+  ObString sub_part_expr;
 
   // init part key info
   part_info.get_part_key_info().key_num_ = 0;
@@ -557,6 +606,39 @@ int ObRouteUtils::fetch_part_info(ObResultSetFetcher &rs_fetcher, ObProxyPartInf
           part_key_num = OBPROXY_MAX_PART_KEY_NUM;
         }
 
+        // get part expr
+        PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_expr", part_expr);
+        char *buf = NULL;
+        if (part_expr.empty()) {
+          LOG_DEBUG("part expression is empty");
+        } else if (OB_ISNULL(buf = static_cast<char *>(part_info.get_allocator().alloc(part_expr.length())))) {
+          ret = OB_ALLOCATE_MEMORY_FAILED;
+          LOG_WARN("fail to allc part key name", K(buf), K(part_expr.length()), K(ret));
+        } else {
+          memcpy(buf, part_expr.ptr(), part_expr.length());
+          part_expr.assign_ptr(buf, part_expr.length());
+        }
+
+        // get sub part expr
+        PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "sub_part_expr", sub_part_expr);
+        if (sub_part_expr.empty()) {
+          LOG_DEBUG("sub part expression is empty");
+        } else if (OB_ISNULL(buf = static_cast<char *>(part_info.get_allocator().alloc(sub_part_expr.length())))) {
+          ret = OB_ALLOCATE_MEMORY_FAILED;
+          LOG_WARN("fail to allc part key name", K(buf), K(sub_part_expr.length()), K(ret));
+        } else {
+          memcpy(buf, sub_part_expr.ptr(), sub_part_expr.length());
+          sub_part_expr.assign_ptr(buf, sub_part_expr.length());
+        }
+        // split part expression
+        if (part_info.get_part_level() >= PARTITION_LEVEL_ONE
+            && OB_FAIL(split_part_expr(part_expr, part_info.get_part_columns()))) {
+          LOG_WARN("fail to split part expr", K(ret));
+        } else if (part_info.get_part_level() == PARTITION_LEVEL_TWO
+                   && OB_FAIL(split_part_expr(sub_part_expr, part_info.get_sub_part_columns())) ) {  
+          LOG_WARN("fail to split sub part expr", K(ret));
+        }
+
         if (OB_FAIL(fetch_part_option(rs_fetcher, part_info))) {
           LOG_WARN("fail to get part option", K(ret));
         }
@@ -568,73 +650,25 @@ int ObRouteUtils::fetch_part_info(ObResultSetFetcher &rs_fetcher, ObProxyPartInf
       if (OB_SUCC(ret)) {
         if (OB_FAIL(fetch_part_key(rs_fetcher, part_info, cluster_version))) {
           LOG_WARN("fail to get part key", K(ret));
-        } // end of if
+        }
       } // end of if (OB_SUCC(ret))
     } // end of else
   } // end of for
-
-  if (OB_SUCC(ret) && IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
-    if (OB_FAIL(build_part_desc(part_info, cluster_version))) {
-      LOG_WARN("fail to build part desc ", K(part_info), K(ret));
-    }
-  }
-  return ret;
-}
-
-int ObRouteUtils::build_part_desc(ObProxyPartInfo &part_info, const int64_t cluster_version) {
-  int ret = OB_SUCCESS;
-  ObProxyPartOption &sub_part_opt = part_info.get_sub_part_option();
-
-  // for first part, we will build part desc in fetch_first_part
-  if (part_info.has_unknown_part_key()) {
-    LOG_INFO("part key type is unsopported, no need build part_desc", K(part_info));
-  } else if (!part_info.is_template_table()) {
-    LOG_INFO("part table is non-template table, build hash and key part_desc later", K(part_info));
-  } else if (OB_FAIL(build_part_desc(part_info, PARTITION_LEVEL_TWO, sub_part_opt, cluster_version))) {
-    LOG_WARN("fail to build sub part", K(sub_part_opt), K(ret));
-  } else {
-    // do nothing
-  }
-
-  return ret;
-}
-
-int ObRouteUtils::build_part_desc(ObProxyPartInfo &part_info,
-                                  const ObPartitionLevel part_level,
-                                  ObProxyPartOption &part_opt,
-                                  const int64_t cluster_version) {
-  int ret = OB_SUCCESS;
-  ObProxyPartMgr &part_mgr = part_info.get_part_mgr();
-
-  if (part_level != PARTITION_LEVEL_TWO) {
-    ret = OB_INVALID_ARGUMENT;
-    LOG_WARN("invalid argument", K(part_level), K(ret));
-  } else {
-    if (part_opt.is_hash_part(cluster_version)) {
-      if (OB_FAIL(part_mgr.build_hash_part(part_info.is_oracle_mode(),
-                                           part_level,
-                                           part_opt.part_func_type_,
-                                           part_opt.part_num_,
-                                           part_opt.part_space_,
-                                           part_info.is_template_table(),
-                                           part_info.get_part_key_info(),
-                                           NULL,
-                                           cluster_version))) {
-        LOG_WARN("fail to build hash part", K(part_opt), K(ret));
-      }
-    } else if (part_opt.is_key_part(cluster_version)) {
-      if (OB_FAIL(part_mgr.build_key_part(part_level,
-                                          part_opt.part_func_type_,
-                                          part_opt.part_num_,
-                                          part_opt.part_space_,
-                                          part_info.is_template_table(),
-                                          part_info.get_part_key_info(),
-                                          NULL,
-                                          cluster_version))) {
-        LOG_WARN("fail to build key part", K(part_opt), K(ret));
+  if (OB_SUCC(ret)) {
+    // handle generated key,  map the key for generated key calculation to real key 
+    for (int64_t i = 0; i < part_info.get_part_key_info().key_num_; ++i) {
+      if (part_info.get_part_key_info().part_keys_[i].generated_col_idx_ >= 0) {
+        for (int64_t j = 0; j < part_info.get_part_key_info().key_num_; ++j) {
+          ObProxyParseString *l = &part_info.get_part_key_info().part_keys_[i].name_;
+          ObProxyParseString *r = &part_info.get_part_key_info().part_keys_[j].name_;
+          if (i != j && l->str_ != NULL
+              && r->str_ != NULL
+              && l->str_len_ == r->str_len_
+              && 0 == strncasecmp(l->str_, r->str_, l->str_len_)) {
+            part_info.get_part_key_info().part_keys_[i].real_source_idx_ = j;
+          }
+        }
       }
-    } else {
-      // we will build range part desc when fetch the range column
     }
   }
   return ret;
@@ -744,120 +778,153 @@ inline int ObRouteUtils::fetch_part_key(ObResultSetFetcher &rs_fetcher,
 {
   int ret = OB_SUCCESS;
 
-  ObProxyPartKeyInfo &part_key_info = part_info.get_part_key_info();
-  ObIAllocator &allocator = part_info.get_allocator();
-  ObPartitionLevel part_key_level = PARTITION_LEVEL_ONE;
-  int64_t part_key_idx = -1;
-  ObObjType part_key_type = ObMaxType;
-  ObCollationType part_key_cs_type = CS_TYPE_INVALID;
-  ObString part_key_name;
-  ObString part_key_extra;
-  ObString constraint_part_key;
-  int64_t idx_in_rowid = -1;
-  ObString part_key_accuracy;
-  int64_t part_key_length = -1;
-  int64_t part_key_precision = -1;
-  int64_t part_key_scale = -1;
-
-  PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_level", part_key_level, ObPartitionLevel);
-  // part key idx is the order of part key in all columns
-  PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_idx", part_key_idx, int64_t);
-  PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_type", part_key_type, ObObjType);
-  PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_key_name", part_key_name);
-  // use part_key_extra as generated key expr
-  PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_key_extra", part_key_extra);
-  if (IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
-    PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "spare4", constraint_part_key);
-    // use spare1 as table collation type
-    PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "spare1", part_key_cs_type, ObCollationType);
-    // use spare2 as rowid index
-    PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "spare2", idx_in_rowid, int64_t);
-    // use spare5 as the accuracy of the part key
-    PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "spare5", part_key_accuracy);
+  // only process OBPROXY_MAX_PART_KEY_NUM part key
+  if (OBPROXY_MAX_PART_KEY_NUM <= part_info.get_part_key_info().key_num_) {
+    LOG_WARN("proxy does not support to fetch more part key", K(OBPROXY_MAX_PART_KEY_NUM));
   } else {
-    PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_key_expr", constraint_part_key);
-    PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_collation_type", part_key_cs_type, ObCollationType);
-    PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_rowkey_idx", idx_in_rowid, int64_t);
-    PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_length", part_key_length, int64_t);
-    PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_precision", part_key_precision, int64_t);
-    PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_scale", part_key_scale, int64_t);
-  }
-
-  LOG_DEBUG("fetch part key", K(part_key_level), K(part_key_idx), K(part_key_type), K(part_key_name),
-            K(part_key_extra), K(constraint_part_key), K(part_key_cs_type), K(idx_in_rowid), K(part_key_accuracy),
-            K(part_key_length), K(part_key_precision), K(part_key_scale));
-
-  if (!is_obj_type_supported(part_key_type)) {
-    part_info.set_unknown_part_key(true);
-  }
+    ObProxyPartKeyInfo &part_key_info = part_info.get_part_key_info();
+    ObIAllocator &allocator = part_info.get_allocator();
+    ObPartitionLevel part_key_level = PARTITION_LEVEL_ONE;
+    int64_t part_key_idx = -1;
+    ObObjType part_key_type = ObMaxType;
+    ObCollationType part_key_cs_type = CS_TYPE_INVALID;
+    ObString part_key_name;
+    ObString part_key_extra;
+
+    // here store serialized default value
+    // mysql mode return serialized ObObj with relevant column's type
+    // oracle mode return serialized ObObj with varchar type
+    char *part_key_default_value = NULL;
+    int default_val_len = 0;
+
+    ObString constraint_part_key;
+    int64_t idx_in_rowid = -1;
+    ObString part_key_accuracy;
+    int64_t part_key_length = -1;
+    int64_t part_key_precision = -1;
+    int64_t part_key_scale = -1;
+
+    PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_level", part_key_level, ObPartitionLevel);
+    // part key idx is the order of part key in all columns
+    PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_idx", part_key_idx, int64_t);
+    PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_type", part_key_type, ObObjType);
+    PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_key_name", part_key_name);
+    // use part_key_extra as generated key expr
+    PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_key_extra", part_key_extra);
+    if (IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
+      PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "spare4", constraint_part_key);
+      // use spare1 as table collation type
+      PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "spare1", part_key_cs_type, ObCollationType);
+      // use spare2 as rowid index
+      PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "spare2", idx_in_rowid, int64_t);
+      // use spare5 as the accuracy of the part key
+      PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "spare5", part_key_accuracy);
+    } else {
+      PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_key_expr", constraint_part_key);
+      PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_collation_type", part_key_cs_type, ObCollationType);
+      PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_rowkey_idx", idx_in_rowid, int64_t);
+      PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_length", part_key_length, int64_t);
+      PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_precision", part_key_precision, int64_t);
+      PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_key_scale", part_key_scale, int64_t);
+    }
 
-  ObProxyPartKey *part_key = &part_key_info.part_keys_[part_key_info.key_num_];
+    if (OB_SUCC(ret)){
+      PROXY_EXTRACT_STRBUF_FIELD_MYSQL_UNLIMIT_LENGTH(rs_fetcher, "part_key_default_value", part_key_default_value, default_val_len, allocator);
+      if (OB_ERR_COLUMN_NOT_FOUND == ret) {
+        LOG_DEBUG("part key default value not exist, continue", K(ret));
+        ret = OB_SUCCESS;
+      }
+    }
 
-  if (PARTITION_LEVEL_ONE == part_key_level) {
-    part_key->level_ = PART_KEY_LEVEL_ONE;
-  } else if (PARTITION_LEVEL_TWO == part_key_level) {
-    part_key->level_ = PART_KEY_LEVEL_TWO;
-  } else {
-    ret = OB_INVALID_ARGUMENT_FOR_EXTRACT;
-    LOG_WARN("part key level is invalid", K(part_key_level), K(ret));
-  }
+    LOG_DEBUG("fetch part key", K(part_key_level), K(part_key_idx), K(part_key_type), K(part_key_name),
+              K(part_key_extra), K(constraint_part_key), K(part_key_cs_type),
+              K(idx_in_rowid), K(part_key_accuracy), K(part_key_default_value),
+              K(part_key_length), K(part_key_precision), K(part_key_scale));
 
-  char *buf = NULL;
-  if (OB_ISNULL(buf = static_cast<char *>(allocator.alloc(part_key_name.length())))) {
-    ret = OB_ALLOCATE_MEMORY_FAILED;
-    LOG_WARN("fail to allc part key name", K(buf), K(part_key_name.length()), K(ret));
-  } else {
-    memcpy(buf, part_key_name.ptr(), part_key_name.length());
-  }
+    if (!is_obj_type_supported(part_key_type)) {
+      part_info.set_unknown_part_key(true);
+    }
 
-  if (OB_SUCC(ret)) {
-    part_key->idx_ = part_key_idx;
-    part_key->name_.str_len_ = part_key_name.length();
-    part_key->name_.str_ = buf;
-    part_key->obj_type_ = part_key_type;
-    part_key->idx_in_rowid_ = idx_in_rowid;
-    part_key->accuracy_.valid_ = 0;               // not valid accuracy
+    ObProxyPartKey *part_key = &part_key_info.part_keys_[part_key_info.key_num_];
 
-    if (IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
-      parse_part_key_accuracy(part_key, part_key_type, &allocator, part_key_accuracy);
+    if (PARTITION_LEVEL_ONE == part_key_level) {
+      part_key->level_ = PART_KEY_LEVEL_ONE;
+    } else if (PARTITION_LEVEL_TWO == part_key_level) {
+      part_key->level_ = PART_KEY_LEVEL_TWO;
     } else {
-      set_part_key_accuracy(part_key, part_key_type,
-                            static_cast<int32_t>(part_key_length),
-                            static_cast<int16_t>(part_key_precision),
-                            static_cast<int16_t>(part_key_scale));
+      ret = OB_INVALID_ARGUMENT_FOR_EXTRACT;
+      LOG_WARN("part key level is invalid", K(part_key_level), K(ret));
     }
 
-    if (CS_TYPE_INVALID == part_key_cs_type) {
-      part_key->cs_type_ = ObCharset::get_default_collation(ObCharset::get_default_charset());
+    char *buf = NULL;
+    if (OB_ISNULL(buf = static_cast<char *>(allocator.alloc(part_key_name.length())))) {
+      ret = OB_ALLOCATE_MEMORY_FAILED;
+      LOG_WARN("fail to allc part key name", K(buf), K(part_key_name.length()), K(ret));
     } else {
-      part_key->cs_type_ = part_key_cs_type;
+      memcpy(buf, part_key_name.ptr(), part_key_name.length());
     }
 
-    if (!part_key_extra.empty() || !constraint_part_key.empty()) {
-      part_key->is_generated_ = true;
-      part_info.set_has_generated_key(true);
-      int64_t generated_key_idx = part_key_info.key_num_;
-      ++part_key_info.key_num_;
-      if (OB_FAIL(add_generated_part_key(part_key_extra, generated_key_idx, part_info))) {
-        LOG_WARN("fail to add generated key", K(part_key_extra), K(ret));
-      }
-      const char *sep_pos = NULL;
-      ObString tmp_str;
-      while (NULL != (sep_pos = (constraint_part_key.find(PART_KEY_EXTRA_SEPARATOR)))) {
-        tmp_str = constraint_part_key.split_on(sep_pos);
-        if (OB_FAIL(add_generated_part_key(tmp_str, generated_key_idx, part_info))) {
-          LOG_WARN("fail to add generated key", K(tmp_str), K(ret));
+    if (OB_SUCC(ret)) {
+      part_key->idx_ = part_key_idx;
+      part_key->name_.str_len_ = part_key_name.length();
+      part_key->name_.str_ = buf;
+      part_key->obj_type_ = part_key_type;
+      part_key->idx_in_rowid_ = idx_in_rowid;
+      part_key->accuracy_.valid_ = 0;               // not valid accuracy
+      ObIArray<ObString> &columns = (part_key->level_ == PART_KEY_LEVEL_ONE ?
+                                    part_info.get_part_columns() : part_info.get_sub_part_columns());
+      for (int i = 0; i < columns.count(); i++) {
+        ObString col(part_key->name_.str_len_, part_key->name_.str_);
+        if (columns.at(i).case_compare(col) == 0) {
+          part_key->idx_in_part_columns_ = i;
+          break;
         }
       }
-      if (OB_FAIL(add_generated_part_key(constraint_part_key, generated_key_idx, part_info))) {
-        LOG_WARN("fail to add generated key", K(constraint_part_key), K(ret));
+      part_key->default_value_.str_len_ = default_val_len;
+      part_key->default_value_.str_ = part_key_default_value;
+      part_key->generated_col_idx_ = -1;
+      part_key->real_source_idx_ = -1;
+
+      if (IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
+        parse_part_key_accuracy(part_key, part_key_type, &allocator, part_key_accuracy);
+      } else {
+        set_part_key_accuracy(part_key, part_key_type,
+                              static_cast<int32_t>(part_key_length),
+                              static_cast<int16_t>(part_key_precision),
+                              static_cast<int16_t>(part_key_scale));
+      }
+
+      if (CS_TYPE_INVALID == part_key_cs_type) {
+        part_key->cs_type_ = ObCharset::get_default_collation(ObCharset::get_default_charset());
+      } else {
+        part_key->cs_type_ = part_key_cs_type;
+      }
+
+      if (!part_key_extra.empty() || !constraint_part_key.empty()) {
+        part_key->is_generated_ = true;
+        part_info.set_has_generated_key(true);
+        int64_t generated_key_idx = part_key_info.key_num_;
+        ++part_key_info.key_num_;
+        if (OB_FAIL(add_generated_part_key(part_key_extra, generated_key_idx, part_info))) {
+          LOG_WARN("fail to add generated key", K(part_key_extra), K(ret));
+        }
+        const char *sep_pos = NULL;
+        ObString tmp_str;
+        while (NULL != (sep_pos = (constraint_part_key.find(PART_KEY_EXTRA_SEPARATOR)))) {
+          tmp_str = constraint_part_key.split_on(sep_pos);
+          if (OB_FAIL(add_generated_part_key(tmp_str, generated_key_idx, part_info))) {
+            LOG_WARN("fail to add generated key", K(tmp_str), K(ret));
+          }
+        }
+        if (OB_FAIL(add_generated_part_key(constraint_part_key, generated_key_idx, part_info))) {
+          LOG_WARN("fail to add generated key", K(constraint_part_key), K(ret));
+        }
+      } else {
+        part_key->is_generated_ = false;
+        ++part_key_info.key_num_;
       }
-    } else {
-      part_key->is_generated_ = false;
-      ++part_key_info.key_num_;
     }
   }
-
   return ret;
 }
 
@@ -892,7 +959,6 @@ int ObRouteUtils::add_generated_part_key(const ObString &part_key_extra,
       LOG_WARN("generated function param num is unexpectedlly larger than 3",
                "child num", child->child_num_, K(OBPROXY_MAX_PARAM_NUM), K(ret));
     } else {
-      LOG_DEBUG("succ to parse generated function expr", "func_expr_result:", ObFuncExprParseResultPrintWrapper(result));
       part_key_info.part_keys_[part_key_info.key_num_].func_type_ = func_expr_node->func_type_;
       part_key_info.part_keys_[part_key_info.key_num_].param_num_ = child->child_num_;
       part_key_info.part_keys_[part_key_info.key_num_].generated_col_idx_ = generated_key_idx;
@@ -910,6 +976,7 @@ int ObRouteUtils::add_generated_part_key(const ObString &part_key_extra,
             part_key_info.part_keys_[part_key_info.key_num_].level_ = part_key.level_;
             part_key_info.part_keys_[part_key_info.key_num_].obj_type_ = part_key.obj_type_;
             part_key_info.part_keys_[part_key_info.key_num_].cs_type_ = part_key.cs_type_;
+            part_key_info.part_keys_[part_key_info.key_num_].idx_in_part_columns_ = part_key.idx_in_part_columns_;
             part_key_info.part_keys_[part_key_info.key_num_].is_generated_ = false;
           }
           child_param_node = child_param_node->next_;
@@ -928,6 +995,12 @@ inline int ObRouteUtils::fetch_part_option(ObResultSetFetcher &rs_fetcher,
   ObProxyPartOption &first_part_opt = part_info.get_first_part_option();
   ObProxyPartOption &sub_part_opt = part_info.get_sub_part_option();
 
+  //get all sub part num
+  int64_t all_sub_part_num=0;
+  //"all_part_num" in __all_virtual_proxy_partition_info
+  PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "all_part_num", all_sub_part_num, int64_t);
+  part_info.get_part_mgr().set_all_sub_part_num(all_sub_part_num);
+  
   // get first part
   PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_num", first_part_opt.part_num_, int64_t);
   PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_type", first_part_opt.part_func_type_,
@@ -951,6 +1024,7 @@ int ObRouteUtils::fetch_first_part(ObResultSetFetcher &rs_fetcher, ObProxyPartIn
     if (OB_FAIL(part_info.get_part_mgr().build_range_part(share::schema::PARTITION_LEVEL_ONE,
                                                           part_info.get_first_part_option().part_func_type_,
                                                           part_info.get_first_part_option().part_num_,
+                                                          part_info.get_part_columns().count(),
                                                           part_info.is_template_table(),
                                                           part_info.get_part_key_info(),
                                                           rs_fetcher,
@@ -961,6 +1035,7 @@ int ObRouteUtils::fetch_first_part(ObResultSetFetcher &rs_fetcher, ObProxyPartIn
     if (OB_FAIL(part_info.get_part_mgr().build_list_part(share::schema::PARTITION_LEVEL_ONE,
                                                          part_info.get_first_part_option().part_func_type_,
                                                          part_info.get_first_part_option().part_num_,
+                                                         part_info.get_part_columns().count(),
                                                          part_info.is_template_table(),
                                                          part_info.get_part_key_info(),
                                                          rs_fetcher,
@@ -973,6 +1048,7 @@ int ObRouteUtils::fetch_first_part(ObResultSetFetcher &rs_fetcher, ObProxyPartIn
                                                          part_info.get_first_part_option().part_func_type_,
                                                          part_info.get_first_part_option().part_num_,
                                                          part_info.get_first_part_option().part_space_,
+                                                         part_info.get_part_columns().count(),
                                                          part_info.is_template_table(),
                                                          part_info.get_part_key_info(),
                                                          &rs_fetcher,
@@ -984,6 +1060,7 @@ int ObRouteUtils::fetch_first_part(ObResultSetFetcher &rs_fetcher, ObProxyPartIn
                                                         part_info.get_first_part_option().part_func_type_,
                                                         part_info.get_first_part_option().part_num_,
                                                         part_info.get_first_part_option().part_space_,
+                                                        part_info.get_part_columns().count(),
                                                         part_info.is_template_table(),
                                                         part_info.get_part_key_info(),
                                                         &rs_fetcher,
@@ -1006,6 +1083,7 @@ int ObRouteUtils::fetch_sub_part(ObResultSetFetcher &rs_fetcher, ObProxyPartInfo
       if (OB_FAIL(part_info.get_part_mgr().build_range_part(share::schema::PARTITION_LEVEL_TWO,
                                                             part_info.get_sub_part_option().part_func_type_,
                                                             part_info.get_sub_part_option().part_num_,
+                                                            part_info.get_sub_part_columns().count(),
                                                             part_info.is_template_table(),
                                                             part_info.get_part_key_info(),
                                                             rs_fetcher,
@@ -1014,6 +1092,7 @@ int ObRouteUtils::fetch_sub_part(ObResultSetFetcher &rs_fetcher, ObProxyPartInfo
       }
     } else {
       if (OB_FAIL(part_info.get_part_mgr().build_sub_range_part_with_non_template(part_info.get_sub_part_option().part_func_type_,
+                                                                                  part_info.get_sub_part_columns().count(),
                                                                                   part_info.get_part_key_info(),
                                                                                   rs_fetcher,
                                                                                   cluster_version))) {
@@ -1025,6 +1104,7 @@ int ObRouteUtils::fetch_sub_part(ObResultSetFetcher &rs_fetcher, ObProxyPartInfo
       if (OB_FAIL(part_info.get_part_mgr().build_list_part(share::schema::PARTITION_LEVEL_TWO,
                                                            part_info.get_sub_part_option().part_func_type_,
                                                            part_info.get_sub_part_option().part_num_,
+                                                           part_info.get_sub_part_columns().count(),
                                                            part_info.is_template_table(),
                                                            part_info.get_part_key_info(),
                                                            rs_fetcher,
@@ -1033,6 +1113,7 @@ int ObRouteUtils::fetch_sub_part(ObResultSetFetcher &rs_fetcher, ObProxyPartInfo
       }
     } else {
       if (OB_FAIL(part_info.get_part_mgr().build_sub_list_part_with_non_template(part_info.get_sub_part_option().part_func_type_,
+                                                                                 part_info.get_sub_part_columns().count(),
                                                                                  part_info.get_part_key_info(),
                                                                                  rs_fetcher,
                                                                                  cluster_version))) {
@@ -1046,6 +1127,7 @@ int ObRouteUtils::fetch_sub_part(ObResultSetFetcher &rs_fetcher, ObProxyPartInfo
                                                            part_info.get_sub_part_option().part_func_type_,
                                                            part_info.get_sub_part_option().part_num_,
                                                            part_info.get_sub_part_option().part_space_,
+                                                           part_info.get_sub_part_columns().count(),
                                                            part_info.is_template_table(),
                                                            part_info.get_part_key_info(),
                                                            &rs_fetcher,
@@ -1056,6 +1138,7 @@ int ObRouteUtils::fetch_sub_part(ObResultSetFetcher &rs_fetcher, ObProxyPartInfo
       if (OB_FAIL(part_info.get_part_mgr().build_sub_hash_part_with_non_template(part_info.is_oracle_mode(),
                                                                                  part_info.get_sub_part_option().part_func_type_,
                                                                                  part_info.get_sub_part_option().part_space_,
+                                                                                 part_info.get_sub_part_columns().count(),
                                                                                  part_info.get_part_key_info(),
                                                                                  rs_fetcher,
                                                                                  cluster_version))) {
@@ -1068,6 +1151,7 @@ int ObRouteUtils::fetch_sub_part(ObResultSetFetcher &rs_fetcher, ObProxyPartInfo
                                                           part_info.get_sub_part_option().part_func_type_,
                                                           part_info.get_sub_part_option().part_num_,
                                                           part_info.get_sub_part_option().part_space_,
+                                                          part_info.get_sub_part_columns().count(),
                                                           part_info.is_template_table(),
                                                           part_info.get_part_key_info(),
                                                           &rs_fetcher,
@@ -1077,6 +1161,7 @@ int ObRouteUtils::fetch_sub_part(ObResultSetFetcher &rs_fetcher, ObProxyPartInfo
     } else {
       if (OB_FAIL(part_info.get_part_mgr().build_sub_key_part_with_non_template(part_info.get_sub_part_option().part_func_type_,
                                                                                 part_info.get_sub_part_option().part_space_,
+                                                                                part_info.get_sub_part_columns().count(),
                                                                                 part_info.get_part_key_info(),
                                                                                 rs_fetcher,
                                                                                 cluster_version))) {
@@ -1321,7 +1406,7 @@ int ObRouteUtils::fetch_one_partition_entry_info(
 {
   int ret = OB_SUCCESS;
   int64_t tmp_real_str_len = 0;
-  char ip_str[OB_IP_STR_BUFF];
+  char ip_str[MAX_IP_ADDR_LENGTH];
   ip_str[0] = '\0';
   int64_t port = 0;
   uint64_t table_id = OB_INVALID_ID;
@@ -1341,7 +1426,7 @@ int ObRouteUtils::fetch_one_partition_entry_info(
     ip_str[0] = '\0';
     port = 0;
 
-    PROXY_EXTRACT_STRBUF_FIELD_MYSQL(rs_fetcher, "svr_ip", ip_str, OB_IP_STR_BUFF, tmp_real_str_len);
+    PROXY_EXTRACT_STRBUF_FIELD_MYSQL(rs_fetcher, "svr_ip", ip_str, MAX_IP_ADDR_LENGTH, tmp_real_str_len);
     PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "sql_port", port, int64_t);
     PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "table_id", table_id, uint64_t);
     PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "role", role, int64_t);
@@ -1554,6 +1639,73 @@ int ObRouteUtils::fetch_one_routine_entry_info(
   return ret;
 }
 
+int ObRouteUtils::fetch_binlog_entry(ObResultSetFetcher &rs_fetcher,
+                                    ObTableEntry &entry)
+{
+  int ret = OB_SUCCESS;
+  int64_t tmp_real_str_len = 0;
+  char ip[OB_IP_PORT_STR_BUFF];
+  char status[32];
+  int64_t port = 0;
+  ObProxyReplicaLocation prl;
+  ObProxyPartitionLocation *ppl = NULL;
+  ObSEArray<ObProxyReplicaLocation, 1> server_list;
+
+  while (OB_SUCC(ret) && OB_SUCC(rs_fetcher.next())) {
+    ip[0] = '\0';
+    status[0] = '\0';
+    prl.reset();
+    bool binlog_service_ok = false;
+
+    PROXY_EXTRACT_STRBUF_FIELD_MYSQL(rs_fetcher, "ip", ip, OB_IP_PORT_STR_BUFF, tmp_real_str_len);
+    PROXY_EXTRACT_STRBUF_FIELD_MYSQL(rs_fetcher, "status", status, sizeof(status), tmp_real_str_len);
+    PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "port", port, int64_t);
+
+    if (0 == strcasecmp("OK", status)) {
+      binlog_service_ok = true;
+    }
+
+    if (OB_SUCC(ret) && binlog_service_ok) {
+      if (OB_FAIL(prl.add_addr(ip, port))) {
+        LOG_WARN("invalid ip or port in fetching binlog entry", K(ret));
+      } else if (server_list.push_back(prl)) {
+        LOG_WARN("fail to add server", K(prl), K(ret));
+      }
+    }
+  }
+
+  if (OB_ITER_END == ret) {
+    ret = OB_SUCCESS;
+  }
+
+  if (OB_SUCC(ret) && !server_list.empty()) {
+    if (OB_ISNULL(ppl = op_alloc(ObProxyPartitionLocation))) {
+      ret = OB_ALLOCATE_MEMORY_FAILED;
+      LOG_WARN("fail to allocate memory for ObProxyPartitionLocation", K(ret));
+    } else if (OB_FAIL(ppl->set_replicas(server_list))) {
+      LOG_WARN("fail to set replicas", K(server_list), K(ret));
+    } else if (!server_list.empty() && OB_UNLIKELY(!ppl->is_valid())) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("ppl should not unavailabe", KPC(ppl), K(ret));
+    } else {
+      if (ppl->is_valid()) {
+        if (OB_FAIL(entry.set_first_partition_location(ppl))) {
+          LOG_WARN("fail to set first partition location", K(ret));
+        } else {
+          ppl = NULL;
+        }
+      }
+    }
+  }
+
+  if (NULL != ppl) {
+    op_free(ppl);
+    ppl = NULL;
+  }
+
+  return ret;
+}
+
 } // end of namespace proxy
 } // end of namespace obproxy
 } // end of namespace oceanbase
diff --git a/src/obproxy/proxy/route/ob_route_utils.h b/src/obproxy/proxy/route/ob_route_utils.h
index ceddfa25..c908b22d 100644
--- a/src/obproxy/proxy/route/ob_route_utils.h
+++ b/src/obproxy/proxy/route/ob_route_utils.h
@@ -48,7 +48,7 @@ class ObRouteUtils
   static int get_first_part_sql(char *sql_buf, const int64_t buf_len, const uint64_t table_id,
                 const bool is_hash_part, ObTableEntryName &name, const int64_t cluster_version);
   static int get_sub_part_sql(char *sql_buf, const int64_t buf_len, const uint64_t table_id,
-            const bool is_template_table, ObTableEntryName &name, const int64_t cluster_version);
+                              const bool is_template_table, ObTableEntryName &name, const int64_t cluster_version);
 
   static int fetch_table_entry(obproxy::ObResultSetFetcher &rs_fetcher, ObTableEntry &entry,
                                const int64_t cluster_version);
@@ -59,6 +59,14 @@ class ObRouteUtils
   static int fetch_sub_part(obproxy::ObResultSetFetcher &rs_fetcher, ObProxyPartInfo &part_info,
                             const int64_t cluster_version);
 
+  static int get_binlog_entry_sql(char *sql_buf,
+                                  const int64_t buf_len,
+                                  const ObString &cluster_name,
+                                  const ObString &tenant_name);
+
+  static int fetch_binlog_entry(obproxy::ObResultSetFetcher &rs_fetcher, ObTableEntry &entry);
+  static int split_part_expr(common::ObString expr, common::ObIArray<common::ObString> &arr);
+
   static int build_sys_dummy_entry(const common::ObString &cluster_name,
                                    const int64_t cluster_id,
                                    const obutils::LocationList &rs_list,
@@ -112,12 +120,6 @@ class ObRouteUtils
                                     const int64_t generated_key_idx,
                                     ObProxyPartInfo &part_info);
   static int fetch_part_option(obproxy::ObResultSetFetcher &rs_fetcher, ObProxyPartInfo &part_info);
-  static int build_part_desc(ObProxyPartInfo &part_info, const int64_t cluster_version);
-  static int build_part_desc(ObProxyPartInfo &part_info,
-                             const share::schema::ObPartitionLevel part_level,
-                             ObProxyPartOption &part_opt,
-                             const int64_t cluster_version);
-
 };
 
 bool is_fake_ip_port(const char *ip_str, const int64_t port);
diff --git a/src/obproxy/proxy/route/ob_server_route.h b/src/obproxy/proxy/route/ob_server_route.h
index 905ba273..64b9afbe 100644
--- a/src/obproxy/proxy/route/ob_server_route.h
+++ b/src/obproxy/proxy/route/ob_server_route.h
@@ -53,8 +53,6 @@ class ObServerRoute
   //                                         |                                        |
   //                                         +<---------------------------------------+
   const ObProxyReplicaLocation *get_next_avail_replica();
-  const ObProxyReplicaLocation *get_next_replica(const uint32_t cur_ip, const uint16_t cur_port,
-                                                 const bool is_force_retry);
   const ObProxyReplicaLocation *get_leader_replica_from_remote() const;
 
   ObTableEntry *get_dummy_entry();
@@ -437,27 +435,6 @@ inline const ObProxyReplicaLocation *ObServerRoute::get_next_avail_replica()
   return cur_chosen_server_.replica_;
 }
 
-inline const ObProxyReplicaLocation *ObServerRoute::get_next_replica(
-    const uint32_t cur_ip,
-    const uint16_t cur_port,
-    const bool is_force_retry)
-{
-  UNUSED(is_force_retry);
-  const ObProxyReplicaLocation *replica = NULL;
-  bool found = false;
-  leader_item_.is_used_ = true;
-  while (!found) {
-    replica = get_next_avail_replica();
-    if (NULL == replica) {
-      found = true;
-    } else if ((cur_ip != replica->server_.get_ipv4())
-                || (cur_port != static_cast<uint16_t>(replica->server_.get_port()))) {
-      found = true;
-    }
-  }
-  return replica;
-}
-
 inline bool ObServerRoute::is_partition_table() const
 {
   return ((NULL != table_entry_) && table_entry_->is_partition_table());
diff --git a/src/obproxy/proxy/route/ob_table_entry.cpp b/src/obproxy/proxy/route/ob_table_entry.cpp
index 42155b32..409e07c8 100644
--- a/src/obproxy/proxy/route/ob_table_entry.cpp
+++ b/src/obproxy/proxy/route/ob_table_entry.cpp
@@ -118,6 +118,7 @@ int ObTableEntry::set_names(const ObTableEntryName &name)
     LOG_WARN("fail to deep copy table entry names", K(ret));
   } else {
     is_dummy_entry_ = name_.is_all_dummy_table();
+    is_binlog_entry_ = name_.is_binlog_table();
   }
   return ret;
 }
diff --git a/src/obproxy/proxy/route/ob_table_entry.h b/src/obproxy/proxy/route/ob_table_entry.h
index b04cd276..34edf185 100644
--- a/src/obproxy/proxy/route/ob_table_entry.h
+++ b/src/obproxy/proxy/route/ob_table_entry.h
@@ -40,7 +40,7 @@ class ObTableEntry : public ObRouteEntry
 {
 public:
   ObTableEntry()
-    : ObRouteEntry(), is_inited_(false), is_dummy_entry_(false), is_entry_from_rslist_(false),
+    : ObRouteEntry(), is_inited_(false), is_dummy_entry_(false), is_binlog_entry_(NULL), is_entry_from_rslist_(false),
       is_empty_entry_allowed_(false), is_need_force_flush_(false), has_dup_replica_(false), table_id_(common::OB_INVALID_ID),
       table_type_(share::schema::MAX_TABLE_TYPE), part_num_(0), replica_num_(0), name_(),
       buf_len_(0), buf_start_(NULL), first_pl_(NULL)
@@ -70,7 +70,7 @@ class ObTableEntry : public ObRouteEntry
   bool is_dummy_entry() const { return is_dummy_entry_; }
   bool is_sys_dummy_entry() const { return is_dummy_entry_ && name_.is_sys_tenant(); }
   bool is_common_dummy_entry() const { return is_dummy_entry_ && !name_.is_sys_tenant(); }
-  bool is_location_entry() const { return !is_dummy_entry_ && 1 == part_num_; }
+  bool is_location_entry() const { return (!is_dummy_entry_ && 1 == part_num_) || is_binlog_entry_; }
   bool is_part_info_entry() const { return !is_dummy_entry_ && part_num_ > 1; }
   bool is_non_partition_table() const { return (1 == get_part_num()); }
   bool is_partition_table() const { return (get_part_num() > 1); }
@@ -125,6 +125,7 @@ class ObTableEntry : public ObRouteEntry
 private:
   bool is_inited_;
   bool is_dummy_entry_;
+  bool is_binlog_entry_;
   bool is_entry_from_rslist_;
   bool is_empty_entry_allowed_;
   bool is_need_force_flush_;
@@ -164,7 +165,7 @@ inline bool ObTableEntry::is_valid() const
                       || (is_location_entry() && NULL != first_pl_ && OB_LIKELY(first_pl_->is_valid()))
                       || (is_part_info_entry() && NULL != part_info_ && OB_LIKELY(part_info_->is_valid()))))
               )
-          );
+          ) || is_binlog_entry_;
 }
 
 inline int64_t ObTableEntry::get_server_count() const
diff --git a/src/obproxy/proxy/route/ob_table_entry_cont.cpp b/src/obproxy/proxy/route/ob_table_entry_cont.cpp
index 7f4cc91b..a5a4950b 100644
--- a/src/obproxy/proxy/route/ob_table_entry_cont.cpp
+++ b/src/obproxy/proxy/route/ob_table_entry_cont.cpp
@@ -240,6 +240,9 @@ const char *ObTableEntryCont::get_state_name(const ObTableEntryLookupState state
     case LOOKUP_DONE_STATE:
       name = "LOOKUP_DONE_STATE";
       break;
+    case LOOKUP_BINLOG_ENTRY_STATE:
+      name = "LOOKUP_BINLOG_ENTRY_STATE";
+      break;
     default:
       name = "Unknown State";
       LOG_WARN("Unknown State", K(state));
@@ -392,6 +395,7 @@ inline int ObTableEntryCont::set_next_state()
   bool is_part_table_route_supported = table_param_.is_partition_table_route_supported_;
   switch (state_) {
     case LOOKUP_TABLE_ENTRY_STATE:
+    case LOOKUP_BINLOG_ENTRY_STATE:
       if (OB_ISNULL(newest_table_entry_)) {
         next_state = LOOKUP_DONE_STATE;
       } else if (newest_table_entry_->is_partition_table() && is_part_table_route_supported) {
@@ -428,12 +432,7 @@ inline int ObTableEntryCont::set_next_state()
         next_state = LOOKUP_DONE_STATE;
         ret = OB_ERR_UNEXPECTED;
         LOG_WARN("part info should not be null here", K(ret));
-      } else if ((!IS_CLUSTER_VERSION_LESS_THAN_V4(table_param_.cluster_version_)
-                 && PARTITION_LEVEL_TWO == newest_table_entry_->get_part_info()->get_part_level())
-                 || (IS_CLUSTER_VERSION_LESS_THAN_V4(table_param_.cluster_version_)
-                 && (!newest_table_entry_->get_part_info()->is_template_table()
-                 || newest_table_entry_->get_part_info()->get_sub_part_option().is_range_part(table_param_.cluster_version_)
-                 || newest_table_entry_->get_part_info()->get_sub_part_option().is_list_part(table_param_.cluster_version_)))) {
+      } else if (newest_table_entry_->get_part_info()->has_sub_part()) {
         next_state = LOOKUP_SUB_PART_STATE;
       } else {
         next_state = LOOKUP_DONE_STATE;
@@ -483,6 +482,9 @@ inline int ObTableEntryCont::handle_client_resp(void *data)
           case LOOKUP_SUB_PART_STATE:
             ret = handle_sub_part_resp(*rs_fetcher);
             break;
+          case LOOKUP_BINLOG_ENTRY_STATE:
+            ret = handle_binlog_entry_resp(*rs_fetcher);
+            break;
           case LOOKUP_DONE_STATE:
           default:
             ret = OB_ERR_UNEXPECTED;
@@ -541,6 +543,22 @@ inline int ObTableEntryCont::handle_table_entry_resp(ObResultSetFetcher &rs_fetc
   return ret;
 }
 
+int ObTableEntryCont::handle_binlog_entry_resp(ObResultSetFetcher &rs_fetcher)
+{
+  int ret = OB_SUCCESS;
+  if (OB_FAIL(ObTableEntry::alloc_and_init_table_entry(table_param_.name_, 0, 0, newest_table_entry_))) {
+    LOG_WARN("fail to alloc and init table entry", "name", table_param_.name_, K(ret));
+  } else if (OB_ISNULL(newest_table_entry_)) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("table entry should not be NULL", K_(newest_table_entry), K(ret));
+  } else if (OB_FAIL(ObRouteUtils::fetch_binlog_entry(rs_fetcher,
+                                                      *newest_table_entry_))) {
+    LOG_WARN("fail to fetch binlog entry info", K(ret));
+  }
+
+  return ret;
+}
+
 inline int ObTableEntryCont::handle_part_info_resp(ObResultSetFetcher &rs_fetcher)
 {
   int ret = OB_SUCCESS;
@@ -887,13 +905,33 @@ inline int ObTableEntryCont::lookup_entry_remote()
   ObMysqlProxy *mysql_proxy = table_param_.mysql_proxy_;
   char sql[OB_SHORT_SQL_LENGTH];
   sql[0] = '\0';
-  if (OB_FAIL(ObRouteUtils::get_table_entry_sql(sql, OB_SHORT_SQL_LENGTH, table_param_.name_,
-                                                table_param_.is_need_force_flush_, table_param_.cluster_version_))) {
-    LOG_WARN("fail to get table entry sql", K(sql), K(ret));
+  if (table_param_.name_.table_name_ == OB_ALL_BINLOG_DUMMY_TNAME) {
+    if (OB_FAIL(ObRouteUtils::get_binlog_entry_sql(sql, OB_SHORT_SQL_LENGTH,
+          table_param_.name_.cluster_name_, table_param_.name_.tenant_name_))) {
+      LOG_WARN("fail to get binlog entry sql", K(ret));
+    } else {
+      state_ = LOOKUP_BINLOG_ENTRY_STATE;
+      ObMysqlRequestParam request_param(sql);
+      ObAddr addr;
+      if (OB_FAIL(addr.parse_from_cstring(get_global_proxy_config().binlog_service_ip.str()))) {
+        LOG_WARN("parse from cstring failed", K(ret));
+      } else {
+        request_param.set_target_addr(addr);
+        request_param.ob_client_flags_.client_flags_.OB_CLIENT_SKIP_AUTOCOMMIT = 1;
+        if (OB_FAIL(mysql_proxy->async_read(this, request_param, pending_action_))) {
+            LOG_WARN("fail to aysnc read", K(sql), K(addr), K(ret));
+        }
+      }
+    }
   } else {
-    const ObMysqlRequestParam request_param(sql, table_param_.current_idc_name_);
-    if (OB_FAIL(mysql_proxy->async_read(this, request_param, pending_action_))) {
-      LOG_WARN("fail to nonblock read", K(sql), K_(table_param), K(ret));
+    if (OB_FAIL(ObRouteUtils::get_table_entry_sql(sql, OB_SHORT_SQL_LENGTH, table_param_.name_,
+                                                  table_param_.is_need_force_flush_, table_param_.cluster_version_))) {
+      LOG_WARN("fail to get table entry sql", K(sql), K(ret));
+    } else {
+      const ObMysqlRequestParam request_param(sql, table_param_.current_idc_name_);
+      if (OB_FAIL(mysql_proxy->async_read(this, request_param, pending_action_))) {
+        LOG_WARN("fail to nonblock read", K(sql), K_(table_param), K(ret));
+      }
     }
   }
 
diff --git a/src/obproxy/proxy/route/ob_table_entry_cont.h b/src/obproxy/proxy/route/ob_table_entry_cont.h
index a330b6e6..189bae91 100644
--- a/src/obproxy/proxy/route/ob_table_entry_cont.h
+++ b/src/obproxy/proxy/route/ob_table_entry_cont.h
@@ -50,6 +50,7 @@ enum ObTableEntryLookupState
   LOOKUP_PART_INFO_STATE,
   LOOKUP_FIRST_PART_STATE,
   LOOKUP_SUB_PART_STATE,
+  LOOKUP_BINLOG_ENTRY_STATE,
   LOOKUP_DONE_STATE,
 };
 
@@ -142,6 +143,7 @@ class ObTableEntryCont : public obutils::ObAsyncCommonTask
   int handle_sub_part_resp(ObResultSetFetcher &rs_fetcher);
   int handle_lookup_remote();
   int handle_lookup_remote_done();
+  int handle_binlog_entry_resp(ObResultSetFetcher &rs_fetcher);
 
   int handle_lookup_remote_for_update();
   int add_to_global_cache(bool &add_succ);
diff --git a/src/obproxy/proxy/route/obproxy_expr_calculator.cpp b/src/obproxy/proxy/route/obproxy_expr_calculator.cpp
index 27c16303..c22bc800 100644
--- a/src/obproxy/proxy/route/obproxy_expr_calculator.cpp
+++ b/src/obproxy/proxy/route/obproxy_expr_calculator.cpp
@@ -47,8 +47,10 @@ int ObProxyExprCalculator::calculate_partition_id(common::ObArenaAllocator &allo
 {
   int ret = OB_SUCCESS;
   ObString part_name = parse_result.get_part_name();
+  bool old_is_oracle_mode = lib::is_oracle_mode();
+  lib::set_oracle_mode(client_info.is_oracle_mode());
   if (!part_name.empty()) {
-    if (OB_FAIL(part_info.get_part_mgr().get_part_with_part_name(part_name, partition_id))) {
+    if (OB_FAIL(part_info.get_part_mgr().get_part_with_part_name(part_name, partition_id, part_info, route, *this))) {
       LOG_WARN("fail to get part id with part name", K(part_name), K(ret));
     }
   }
@@ -92,7 +94,8 @@ int ObProxyExprCalculator::calculate_partition_id(common::ObArenaAllocator &allo
         LOG_INFO("fail to do expr parse", K(print_sql), K(part_info), "expr_parse_result",
                  ObExprParseResultPrintWrapper(expr_parse_result));
       } else if (OB_FAIL(do_expr_resolve(expr_parse_result, client_request, &client_info, ps_id_entry,
-                                         text_ps_entry, part_info, allocator, resolve_result, partition_id))) {
+                                         text_ps_entry, part_info, allocator, resolve_result,
+                                         parse_result, partition_id))) {
         LOG_INFO("fail to do expr resolve", K(print_sql), "expr_parse_result",
                  ObExprParseResultPrintWrapper(expr_parse_result),
                  K(part_info), KPC(ps_id_entry), KPC(text_ps_entry), K(resolve_result));
@@ -126,6 +129,7 @@ int ObProxyExprCalculator::calculate_partition_id(common::ObArenaAllocator &allo
     }
   }
 
+  lib::set_oracle_mode(old_is_oracle_mode);
   return ret;
 }
 
@@ -197,14 +201,6 @@ int ObProxyExprCalculator::do_expr_parse(const common::ObString &req_sql,
     expr_result.part_key_info_.part_keys_[i] = key_info.part_keys_[i];
   }
 
-  expr_result.target_mask_ = 0;
-  if (PARTITION_LEVEL_ONE == part_info.get_part_level()) {
-    expr_result.target_mask_ = FIRST_PART_MASK;
-  } else if (PARTITION_LEVEL_TWO == part_info.get_part_level()) {
-    expr_result.target_mask_ = BOTH_PART_MASK;
-  } else {
-    // do nothing
-  }
   if (OB_FAIL(expr_parser.parse_reqsql(req_sql,  parse_result.get_parsed_length(), expr_result,
                                        parse_result.get_stmt_type(), connection_collation))) {
     LOG_DEBUG("fail to do expr parse_reqsql", K(req_sql), K(ret));
@@ -247,6 +243,7 @@ int ObProxyExprCalculator::do_expr_resolve(ObExprParseResult &parse_result,
                                            ObProxyPartInfo &part_info,
                                            ObIAllocator &allocator,
                                            ObExprResolverResult &resolve_result,
+                                           const ObSqlParseResult &sql_parse_result,
                                            int64_t &partition_id)
 {
   int ret = OB_SUCCESS;
@@ -257,7 +254,10 @@ int ObProxyExprCalculator::do_expr_resolve(ObExprParseResult &parse_result,
   ctx.ps_id_entry_ = ps_id_entry;
   ctx.text_ps_entry_ = text_ps_entry;
   ctx.client_info_ = client_info;
-
+  ctx.parse_result_ = &parse_result;
+  ctx.is_insert_stm_ = sql_parse_result.is_insert_stmt();
+  ObSqlParseResult &result = const_cast<ObSqlParseResult &>(sql_parse_result);
+  ctx.sql_field_result_ = &result.get_sql_filed_result();
   ObExprResolver expr_resolver(allocator);
 
   if (parse_result.has_rowid_) {
@@ -332,7 +332,8 @@ int ObProxyExprCalculator::do_partition_id_calc(ObExprResolverResult &resolve_re
 
     LOG_DEBUG("do partition id calc", K(sub_part_id), K(tablet_id), K(part_info.has_sub_part()));
 
-    if (OB_SUCC(ret)) {
+    if (OB_SUCC(ret)
+        && (tablet_id != -1 || (first_part_id != OB_INVALID_INDEX && (!part_info.has_sub_part() || sub_part_id != OB_INVALID_INDEX)))) {
       if (tablet_id == -1) {
         partition_id = generate_phy_part_id(first_part_id, sub_part_id, part_info.get_part_level());
       } else {
@@ -378,8 +379,10 @@ int ObProxyExprCalculator::calc_part_id_by_random_choose_from_exist(ObProxyPartI
       if (OB_FAIL(ObRandomNumUtils::get_random_num(0, first_part_num - 1, rand_num))) {
         LOG_WARN("fail to get random num in first part", K(first_part_num), K(ret));
       } else {
-        if (OB_FAIL(part_mgr.get_first_part_id_by_idx(rand_num, first_part_id, tablet_id))) {
-          LOG_WARN("failed to random get first part id by idx", K(rand_num), K(ret));
+        if (OB_FAIL(part_mgr.get_first_part_id_by_random(rand_num, first_part_id, tablet_id))) {
+          LOG_WARN("failed to get first part id by random", K(rand_num), K(ret));
+        } else {
+          //nothing;
         }
       }
     }
@@ -434,6 +437,7 @@ int ObProxyExprCalculator::calc_partition_id_using_rowid(ObExprResolverContext &
 {
   int ret = OB_SUCCESS;
   const ObProxyRelationInfo *relation_info = ctx.relation_info_;
+
   if (OB_ISNULL(relation_info)) {
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("invalid ctx relation info", K(ret));
@@ -458,7 +462,7 @@ int ObProxyExprCalculator::calc_partition_id_using_rowid(ObExprResolverContext &
       }
     } // for
   }
-  
+
   return ret;
 }
 
@@ -470,21 +474,30 @@ int ObProxyExprCalculator::calc_partition_id_with_rowid(ObProxyRelationExpr *rel
 {
   int ret = OB_SUCCESS;
 
-  ObNewRange &range = resolve_result.ranges_[0];
-  ObExprResolver expr_resolver(allocator);
-  if (OB_FAIL(expr_resolver.resolve_token_list(relation, ctx.part_info_, ctx.client_request_, ctx.client_info_,
-                                               ctx.ps_id_entry_, ctx.text_ps_entry_, range, true))) {
-    LOG_INFO("fail to resolve token list with rowid", K(ret));
+  ObObj *target_obj = NULL;
+  void *buf = NULL;
+  if (OB_ISNULL(buf = allocator.alloc(sizeof(ObObj)))) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    LOG_WARN("fail to alloc mem", K(ret));
+  } else if (OB_ISNULL(target_obj = new (buf) ObObj())) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    LOG_WARN("fail to new mem", K(ret));
   } else {
-    ObObj &obj = const_cast<ObObj &>(range.get_start_key().get_obj_ptr()[0]);
-    if (!obj.is_varchar()) {
-      ret = OB_ERR_UNEXPECTED;
-      LOG_INFO("expected obj type after resolved from execute", K(ret), K(obj.get_type()));
+    ObExprResolver expr_resolver(allocator);
+    if (OB_FAIL(expr_resolver.resolve_token_list(relation, ctx.part_info_, ctx.client_request_, ctx.client_info_,
+                                                 ctx.ps_id_entry_, ctx.text_ps_entry_,
+                                                 target_obj, ctx.sql_field_result_, true))) {
+      LOG_INFO("fail to resolve token list with rowid", K(ret));
     } else {
-      ObString obj_str = obj.get_varchar();
-      if (OB_FAIL(calc_partition_id_with_rowid_str(obj_str.ptr(), obj_str.length(), allocator, resolve_result,
-                                                   *ctx.part_info_, partition_id))) {
-        LOG_INFO("fail to calc partition id with rowid str within execute", K(ret));
+      if (!target_obj->is_varchar()) {
+        ret = OB_ERR_UNEXPECTED;
+        LOG_INFO("expected obj type after resolved from execute", K(ret), K(target_obj->get_type()));
+      } else {
+        ObString obj_str = target_obj->get_varchar();
+        if (OB_FAIL(calc_partition_id_with_rowid_str(obj_str.ptr(), obj_str.length(), allocator,
+                                                     resolve_result, *ctx.part_info_, partition_id))) {
+          LOG_INFO("fail to calc partition id with rowid str within execute", K(ret));
+        }
       }
     }
   }
@@ -502,10 +515,9 @@ int ObProxyExprCalculator::calc_partition_id_with_rowid_str(const char *str,
   int ret = OB_SUCCESS;
 
   ObURowIDData rowid_data;
-  ObArray<ObObj> pk_vals;
   if (OB_FAIL(ObURowIDData::decode2urowid(str, str_len, allocator, rowid_data))) {
     LOG_WARN("decode2urowid failed", K(ret));
-  } else if (OB_FAIL(rowid_data.get_obobj_or_partition_id_from_decoded(part_info, resolve_result, partition_id))) {
+  } else if (OB_FAIL(rowid_data.get_obobj_or_partition_id_from_decoded(part_info, resolve_result, partition_id, allocator))) {
     LOG_WARN("fail to get obobj or partition id by rowid data", K(ret));
   } else {
     // nothing
@@ -533,7 +545,7 @@ int ObExprCalcTool::build_dtc_params_with_tz_info(ObClientSessionInfo *session_i
 }
 
 /*
- * for ObTimestampLTZType, input timestamp string, and we also need time_zone from session
+ * for ObTimestampLTZType, ObTimestampTZType input timestamp string, and we also need time_zone from session
  * in order to decide the absolutely time
  */
 int ObExprCalcTool::build_tz_info(ObClientSessionInfo *session_info,
@@ -541,22 +553,31 @@ int ObExprCalcTool::build_tz_info(ObClientSessionInfo *session_info,
                                   ObTimeZoneInfo &tz_info)
 {
   int ret = OB_SUCCESS;
+  if (ObTimestampLTZType == obj_type || ObTimestampTZType == obj_type) {
+    if (OB_FAIL(build_tz_info_for_all_type(session_info, tz_info))) {
+      LOG_WARN("fail to build time zone info with session", K(ret));
+    }
+  }
+  return ret;
+}
+
+int ObExprCalcTool::build_tz_info_for_all_type(ObClientSessionInfo *session_info,
+                                               ObTimeZoneInfo &tz_info)
+{
+  int ret = OB_SUCCESS;
+  ObObj value_obj;
+  ObString sys_key_name = ObString::make_string(oceanbase::sql::OB_SV_TIME_ZONE);
 
-  if (ObTimestampLTZType == obj_type) {
-    ObObj value_obj;
-    ObString sys_key_name = ObString::make_string(oceanbase::sql::OB_SV_TIME_ZONE);
-    if (OB_FAIL(session_info->get_sys_variable_value(sys_key_name, value_obj))) {
-      LOG_WARN("fail to get sys var from session", K(ret), K(sys_key_name));
+  if (OB_FAIL(session_info->get_sys_variable_value(sys_key_name, value_obj))) {
+    LOG_WARN("fail to get sys var from session", K(ret), K(sys_key_name));
+  } else {
+    ObString value_str = value_obj.get_string();
+    if (OB_FAIL(tz_info.set_timezone(value_str))) {
+      LOG_WARN("fail to set time zone for tz_info", K(ret), K(value_str));
     } else {
-      ObString value_str = value_obj.get_string();
-      if (OB_FAIL(tz_info.set_timezone(value_str))) {
-        LOG_WARN("fail to set time zone for tz_info", K(ret), K(value_str));
-      } else {
-        LOG_DEBUG("succ to set time zone for tz_info", K(value_str));
-      }
+      LOG_DEBUG("succ to set time zone for tz_info", K(value_str));
     }
   }
-
   return ret;
 }
 
diff --git a/src/obproxy/proxy/route/obproxy_expr_calculator.h b/src/obproxy/proxy/route/obproxy_expr_calculator.h
index 484eabf4..a657c074 100644
--- a/src/obproxy/proxy/route/obproxy_expr_calculator.h
+++ b/src/obproxy/proxy/route/obproxy_expr_calculator.h
@@ -59,6 +59,10 @@ class ObProxyExprCalculator
                              ObServerRoute &route,
                              ObProxyPartInfo &part_info,
                              int64_t &partition_id);
+  int calc_part_id_by_random_choose_from_exist(ObProxyPartInfo &part_info,
+                                               int64_t &first_part_id,
+                                               int64_t &sub_part_id,
+                                               int64_t &phy_part_id);
 private:
   // do parse -> do resolve -> do partition id calc
   int do_expr_parse(const common::ObString &req_sql,
@@ -75,6 +79,7 @@ class ObProxyExprCalculator
                       ObProxyPartInfo &part_info,
                       common::ObIAllocator &allocator,
                       opsql::ObExprResolverResult &resolve_result,
+                      const obutils::ObSqlParseResult &sql_parse_result,
                       int64_t &partition_id);
   int do_partition_id_calc(opsql::ObExprResolverResult &resolve_result,
                            ObClientSessionInfo &client_info,
@@ -96,21 +101,17 @@ class ObProxyExprCalculator
                                     opsql::ObExprResolverResult &resolve_result,
                                     common::ObIAllocator &allocator,
                                     int64_t &partition_id);
+  int calc_partition_id_with_rowid(ObProxyRelationExpr *relation,
+                                   opsql::ObExprResolverContext &ctx,
+                                   common::ObIAllocator &allocator,
+                                   opsql::ObExprResolverResult &resolve_result,
+                                   int64_t &partition_id);
   int calc_partition_id_with_rowid_str(const char *str,
                                        const int64_t str_len,
                                        common::ObIAllocator &allocator,
                                        opsql::ObExprResolverResult &resolve_result,
                                        ObProxyPartInfo &part_info,
                                        int64_t &partition_id);
-  int calc_partition_id_with_rowid(ObProxyRelationExpr *relation,
-                                   opsql::ObExprResolverContext &ctx,
-                                   common::ObIAllocator &allocator,
-                                   opsql::ObExprResolverResult &resolve_result,
-                                   int64_t &partition_id);
-  int calc_part_id_by_random_choose_from_exist(ObProxyPartInfo &part_info,
-                                               int64_t &first_part_id,
-                                               int64_t &sub_part_id,
-                                               int64_t &phy_part_id);
 };
 
 class ObExprCalcTool {
@@ -122,6 +123,9 @@ class ObExprCalcTool {
   static int build_tz_info(ObClientSessionInfo *session_info,
                            common::ObObjType obj_type,
                            common::ObTimeZoneInfo &tz_info);
+
+  static int build_tz_info_for_all_type(ObClientSessionInfo *session_info,
+                                        common::ObTimeZoneInfo &tz_info);
   static int build_dtc_params(ObClientSessionInfo *session_info,
                               common::ObObjType obj_type,
                               common::ObDataTypeCastParams &dtc_params);
diff --git a/src/obproxy/proxy/route/obproxy_part_info.cpp b/src/obproxy/proxy/route/obproxy_part_info.cpp
index 7ff2a902..d5621c04 100644
--- a/src/obproxy/proxy/route/obproxy_part_info.cpp
+++ b/src/obproxy/proxy/route/obproxy_part_info.cpp
@@ -94,6 +94,7 @@ int ObProxyPartInfo::alloc(ObProxyPartInfo *&part_info)
 
 void ObProxyPartInfo::free()
 {
+  part_mgr_.destroy();
   allocator_.reset();
   op_fixed_mem_free(this, sizeof(ObProxyPartInfo));
 }
diff --git a/src/obproxy/proxy/route/obproxy_part_info.h b/src/obproxy/proxy/route/obproxy_part_info.h
index cd15e414..2f2a0bbe 100644
--- a/src/obproxy/proxy/route/obproxy_part_info.h
+++ b/src/obproxy/proxy/route/obproxy_part_info.h
@@ -68,6 +68,8 @@ class ObProxyPartInfo
 
   share::schema::ObPartitionLevel get_part_level() const { return part_level_; }
   common::ObCollationType get_table_cs_type() const { return table_cs_type_; }
+  common::ObIArray<common::ObString> &get_part_columns() { return part_columns_; }
+  common::ObIArray<common::ObString> &get_sub_part_columns() { return sub_part_columns_; }
   ObProxyPartOption &get_first_part_option() { return first_part_option_; }
   ObProxyPartOption &get_sub_part_option() { return sub_part_option_; }
   ObProxyPartMgr &get_part_mgr() { return part_mgr_; }
@@ -91,6 +93,9 @@ class ObProxyPartInfo
   share::schema::ObPartitionLevel part_level_;
   common::ObCollationType table_cs_type_;
 
+  common::ObSEArray<common::ObString, 2> part_columns_;
+  common::ObSEArray<common::ObString, 2> sub_part_columns_;
+
   common::ObArenaAllocator allocator_;
   ObProxyPartOption first_part_option_;
   ObProxyPartOption sub_part_option_;
diff --git a/src/obproxy/proxy/route/obproxy_part_mgr.cpp b/src/obproxy/proxy/route/obproxy_part_mgr.cpp
index 2e0e76a0..a6188304 100644
--- a/src/obproxy/proxy/route/obproxy_part_mgr.cpp
+++ b/src/obproxy/proxy/route/obproxy_part_mgr.cpp
@@ -17,7 +17,11 @@
 #include "share/part/ob_part_desc_key.h"
 #include "share/part/ob_part_desc_range.h"
 #include "share/part/ob_part_desc_list.h"
+#include "share/part/ob_part_mgr_util.h"
 #include "proxy/mysqllib/ob_resultset_fetcher.h"
+#include "utils/ob_proxy_utils.h"
+#include "proxy/route/obproxy_expr_calculator.h"
+#include "proxy/route/ob_server_route.h"
 
 using namespace oceanbase::common;
 using namespace oceanbase::share::schema;
@@ -27,59 +31,101 @@ namespace obproxy
 {
 namespace proxy
 {
-int64_t ObPartNameIdPair::to_string(char *buf, const int64_t buf_len) const
-{
-  int64_t pos = 0;
-  J_OBJ_START();
-  J_KV(K_(part_name), K_(part_id), K_(tablet_id));
-  J_OBJ_END();
-  return pos;
-}
 
 ObProxyPartMgr::ObProxyPartMgr(ObIAllocator &allocator) : first_part_desc_(NULL)
                                                         , sub_part_desc_(NULL)
                                                         , first_part_num_(0)
                                                         , sub_part_num_(NULL)
-                                                        , part_pair_array_(NULL)
+                                                        , all_first_part_name_buf_(NULL)
+                                                        , all_sub_part_name_buf_(NULL)
+                                                        , all_first_part_name_length_(0)
+                                                        , all_sub_part_name_length_(0)
+                                                        , first_part_name_id_map_()
+                                                        , sub_part_name_id_map_()
                                                         , allocator_(allocator)
                                                         , cluster_version_(0)
 {
 }
 
+void ObProxyPartMgr::destroy()
+{
+  if(first_part_name_id_map_.created()) {
+    first_part_name_id_map_.destroy();
+  }
+  if(sub_part_name_id_map_.created()) {
+    sub_part_name_id_map_.destroy();
+  }
+}
 int ObProxyPartMgr::get_part_with_part_name(const ObString &part_name,
-                                            int64_t &part_id)
+                                            int64_t &part_id,
+                                            ObProxyPartInfo &part_info,
+                                            ObServerRoute &route,
+                                            ObProxyExprCalculator &expr_calculator)
 {
   int ret = OB_SUCCESS;
-  if (NULL != part_pair_array_&& first_part_num_ > 0) {
-    bool found = false;
-    for (int64_t i = 0; !found && i < first_part_num_; ++i) {
-      if (part_pair_array_[i].get_part_name().case_compare(part_name) == 0) {
-        int64_t tablet_id = part_pair_array_[i].get_tablet_id();
-        if (tablet_id != -1) {
-          part_id = tablet_id;
+  if ( part_name.length() <= 0 || part_name.length() > MAX_PART_NAME_LENGTH) {
+    ret = OB_INVALID_ARGUMENT;
+    LOG_WARN("error part name", K(part_name));
+  } else {
+    ObPartitionLevel part_level = part_info.get_part_level();
+    ObString store_part_name;
+    int64_t * part_id_ptr = NULL;
+    PART_NAME_BUF tmp_buf;//64 byte stack buf
+    store_part_name.assign_ptr((char *)&tmp_buf, part_name.length());
+    MEMCPY(store_part_name.ptr(), part_name.ptr(), store_part_name.length());
+    string_to_upper_case(store_part_name.ptr(), store_part_name.length());
+    if ((sub_part_name_id_map_.created()) && OB_NOT_NULL(part_id_ptr = (int64_t *)sub_part_name_id_map_.get(store_part_name))) {
+    //find sub part name, get ptr->(physical part id)
+      part_id = *part_id_ptr;
+      LOG_DEBUG("succ to get part id by sub part name", K(part_id), K(part_name));
+    } else if ((first_part_name_id_map_.created()) && OB_NOT_NULL(part_id_ptr = (int64_t *)first_part_name_id_map_.get(store_part_name))) {
+    //find first part name, get ptr->(first part id)
+      LOG_DEBUG("succ to get part id by first part name", K(*part_id_ptr), K(part_name));
+      if(OB_LIKELY(PARTITION_LEVEL_ONE == part_level)) {
+        part_id = *part_id_ptr;
+      } else if((PARTITION_LEVEL_TWO == part_level)
+        && !obutils::get_global_proxy_config().enable_primary_zone
+        && !obutils::get_global_proxy_config().enable_cached_server) {
+        int64_t first_part_id = *part_id_ptr;
+        int64_t sub_part_id = OB_INVALID_INDEX;
+        if(OB_FAIL(expr_calculator.calc_part_id_by_random_choose_from_exist(part_info, first_part_id, sub_part_id, part_id))) {
+          LOG_DEBUG("fail to get random part id by first part name", K(first_part_id), K(part_id), K(part_name));
         } else {
-          part_id = part_pair_array_[i].get_part_id();
+          // get part id by random, no need update pl
+          route.no_need_pl_update_ = true;
+          LOG_DEBUG("succ to get random part id by first part name", K(first_part_id), K(sub_part_id), K(part_id));
         }
-        found = true;
+      } else {
+        //do nothing
       }
     }
-    if (found) {
-      LOG_DEBUG("succ to get part id with part name", K(part_id), K(part_name));
-    }
   }
   return ret;
 }
 
-int ObProxyPartMgr::get_first_part_id_by_idx(const int64_t idx, int64_t &part_id, int64_t &tablet_id)
+int ObProxyPartMgr::get_first_part_id_by_random(const int64_t rand_num, 
+                                                int64_t &first_part_id,
+                                                int64_t &tablet_id)
 {
   int ret = OB_SUCCESS;
-  if (idx < 0 || idx >= first_part_num_ || OB_ISNULL(part_pair_array_)) {
+  ObSEArray<int64_t, 1> part_ids;
+  ObSEArray<int64_t, 1> tablet_ids;
+  if (OB_ISNULL(first_part_desc_)) {
     ret = OB_INVALID_ARGUMENT;
-    LOG_WARN("fail to get part id by idx", K(ret), K(idx), K(first_part_num_), K(part_pair_array_));
+    LOG_WARN("fail to get first part, null ptr", K(ret));
   } else {
-    part_id = part_pair_array_[idx].get_part_id();
-    tablet_id = part_pair_array_[idx].get_tablet_id();
+    if (OB_FAIL(first_part_desc_->get_part_by_num(rand_num, part_ids, tablet_ids))) {
+      LOG_WARN("fail to get first part by random", K(first_part_desc_), K(ret));
+    } else {
+      if (part_ids.count() >= 1) {
+        first_part_id = part_ids[0];
+      }
+      if (tablet_ids.count() >= 1) {
+        tablet_id = tablet_ids[0];
+      }
+    }
   }
+
   return ret;
 }
 
@@ -211,6 +257,7 @@ int ObProxyPartMgr::build_hash_part(const bool is_oracle_mode,
                                     const ObPartitionFuncType part_func_type,
                                     const int64_t part_num,
                                     const int64_t part_space,
+                                    const int64_t part_col_num,
                                     const bool is_template_table,
                                     const ObProxyPartKeyInfo &key_info,
                                     ObResultSetFetcher *rs_fetcher /*NULL*/,
@@ -219,10 +266,11 @@ int ObProxyPartMgr::build_hash_part(const bool is_oracle_mode,
   int ret = OB_SUCCESS;
   void *tmp_buf = NULL;
   ObPartDescHash *desc_hash = NULL;
-  int64_t part_id = -1;
-  ObString part_name;
+  PART_NAME_BUF *name_buf = NULL;
+  int64_t *name_len_buf = NULL;
+  int64_t *part_id_buf = NULL;
   int64_t sub_part_num = 0;
-  int64_t tablet_id = -1;
+  ObString part_name;
   int64_t *part_array = NULL;
 
   // After observer v4.0, there is no concept of template partition
@@ -235,6 +283,8 @@ int ObProxyPartMgr::build_hash_part(const bool is_oracle_mode,
   } else if (OB_ISNULL(desc_hash = new (tmp_buf) ObPartDescHash())) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("part mgr reach memory limit", K(ret));
+  } else if (OB_FAIL(alloc_name_buf(name_buf, name_len_buf, part_id_buf, part_num))) {
+    LOG_WARN("fail to alloc name buf", K(ret));
   } else if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version) && OB_ISNULL(desc_hash->tablet_id_array_ = (int64_t*)allocator_.alloc(sizeof(int64_t) * part_num))) {
     ret = OB_REACH_MEMORY_LIMIT;
     LOG_WARN("part mgr reach memory limit, alloc tablet id array failed", K(ret), K(part_num));
@@ -242,44 +292,68 @@ int ObProxyPartMgr::build_hash_part(const bool is_oracle_mode,
     ret = OB_REACH_MEMORY_LIMIT;
     LOG_WARN("part mgr reach memory limit, alloc part array failed", K(ret), K(part_num));
   } else {
-    if (NULL != rs_fetcher && PARTITION_LEVEL_ONE == part_level) {
-      first_part_num_ = part_num;
-      if (OB_ISNULL(tmp_buf = allocator_.alloc(sizeof(ObPartNameIdPair) * part_num))) {
-        ret = OB_REACH_MEMORY_LIMIT;
-        LOG_WARN("part mgr reach memory limit", K(ret));
-      } else if (OB_ISNULL(part_pair_array_ = new (tmp_buf) ObPartNameIdPair[part_num])) {
-        ret = OB_ERR_UNEXPECTED;
-        LOG_WARN("failed to do placement new", K(tmp_buf), K(part_num), K(ret));
-      } else if (!is_template_table && OB_ISNULL(sub_part_num_ = (int64_t *)allocator_.alloc(sizeof(int64_t) * part_num))) {
-        ret = OB_REACH_MEMORY_LIMIT;
-        LOG_WARN("part mgr reach memory limit", K(ret));
-      }
-      for (int64_t i = 0; i < part_num && OB_SUCC(ret); ++i) {
-        if (OB_FAIL(rs_fetcher->next())) {
-          LOG_DEBUG("failed to get next rs_fetcher", K(ret));
-        } else {
-          PROXY_EXTRACT_INT_FIELD_MYSQL(*rs_fetcher, "part_id", part_id, int64_t);
-          PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(*rs_fetcher, "part_name", part_name);
-          part_pair_array_[i].set_part_id(part_id);
-          if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
-            PROXY_EXTRACT_INT_FIELD_MYSQL(*rs_fetcher, "tablet_id", tablet_id, int64_t);
-            part_pair_array_[i].set_tablet_id(tablet_id);
-            desc_hash->tablet_id_array_[i] = tablet_id;
-            part_array[i] = part_id;
-          }
-          if (OB_FAIL(part_pair_array_[i].set_part_name(part_name))) {
-            LOG_WARN("fail to set part name", K(part_name), K(ret));
-          } else if (!is_template_table) {
-            PROXY_EXTRACT_INT_FIELD_MYSQL(*rs_fetcher, "sub_part_num", sub_part_num, int64_t);
-            sub_part_num_[i] = sub_part_num;
+    if (NULL != rs_fetcher) {
+      if (PARTITION_LEVEL_ONE == part_level) {
+        first_part_num_ = part_num;
+        if (!is_template_table && OB_ISNULL(sub_part_num_ = (int64_t *)allocator_.alloc(sizeof(int64_t) * part_num))) {
+          ret = OB_REACH_MEMORY_LIMIT;
+          LOG_WARN("part mgr reach memory limit", K(ret));
+        }
+        for (int64_t i = 0; i < part_num && OB_SUCC(ret); ++i) {
+          if (OB_FAIL(rs_fetcher->next())) {
+            LOG_DEBUG("fail to get next rs_fetcher", K(ret));
+          } else {
+            PROXY_EXTRACT_INT_FIELD_MYSQL(*rs_fetcher, "part_id", part_id_buf[i], int64_t);
+            PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(*rs_fetcher, "part_name", part_name);
+
+            if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
+              int64_t tablet_id = -1;
+              part_array[i] = part_id_buf[i];
+              PROXY_EXTRACT_INT_FIELD_MYSQL(*rs_fetcher, "tablet_id", tablet_id, int64_t);
+              desc_hash->tablet_id_array_[i] = tablet_id;
+              if ((tablet_id != -1) && (tablet_id != 0)) {
+                part_id_buf[i] = tablet_id;
+              }
+            }
+
+            if (part_name.length() <= MAX_PART_NAME_LENGTH) {
+              MEMCPY(name_buf[i], part_name.ptr(), part_name.length());
+              name_len_buf[i] = part_name.length();
+              all_first_part_name_length_ += part_name.length();
+            } else {//treat too long name string as empty string
+              name_len_buf[i] = 0;
+            }
+
+            if (!is_template_table) {
+              PROXY_EXTRACT_INT_FIELD_MYSQL(*rs_fetcher, "sub_part_num", sub_part_num, int64_t);
+              sub_part_num_[i] = sub_part_num;
+            }
           }
+        } // end for
+        if (OB_ITER_END == ret) {
+          LOG_DEBUG("empty first hash part info, maybe ob version < 2.1", K(ret));
+          ret = OB_SUCCESS;
         }
-      } // end for
-      if (OB_ITER_END == ret) {
-        LOG_DEBUG("empty first hash part info, maybe ob version < 2.1", K(ret));
-        ret = OB_SUCCESS;
+      } else if (PARTITION_LEVEL_TWO == part_level) {
+        for (int64_t i = 0; i < part_num && OB_SUCC(ret); ++i) {//part_num=sub part num
+          if (OB_FAIL(rs_fetcher->next())) {
+            LOG_DEBUG("fail to get next rs_fetcher", K(ret));
+          } else {
+            PROXY_EXTRACT_INT_FIELD_MYSQL(*rs_fetcher, "sub_part_id", part_id_buf[i], int64_t);
+            PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(*rs_fetcher, "part_name", part_name);
+            if (part_name.length() <= MAX_PART_NAME_LENGTH) {
+              MEMCPY(name_buf[i], part_name.ptr(), part_name.length());
+              name_len_buf[i] = part_name.length();
+              all_sub_part_name_length_ += part_name.length();
+            } else {//treat too long name string as empty string
+              name_len_buf[i] = 0;
+            }
+          }
+        } // end for
+      } else {
+        //nothing
       }
-    } // end NULL != rs_fetcher && PARTITION_LEVEL_ONE == part_level
+    } // end NULL != rs_fetcher 
   }
 
   if (OB_SUCC(ret)) {
@@ -291,30 +365,52 @@ int ObProxyPartMgr::build_hash_part(const bool is_oracle_mode,
     desc_hash->set_part_num(part_num);
     desc_hash->set_part_level(part_level);
     desc_hash->set_part_func_type(part_func_type);
-    // find the first match key, should consider whether the key is both part one and part two?
+    for (int i = 0; i < part_col_num; i++) {
+      desc_hash->get_accuracies().push_back(ObAccuracy());
+      desc_hash->get_obj_types().push_back(ObObjType());
+      desc_hash->get_cs_types().push_back(ObCollationType());
+    }
+    // find all keys in this level 
     for (int i = 0; i < key_info.key_num_; ++i) {
       if (static_cast<ObPartitionLevel>(key_info.part_keys_[i].level_) == part_level) {
-        desc_hash->set_part_key_type(static_cast<ObObjType>(key_info.part_keys_[i].obj_type_));
-        desc_hash->set_part_key_cs_type(static_cast<ObCollationType>(key_info.part_keys_[i].cs_type_));
-        desc_hash->set_accuracy(key_info.part_keys_[i].accuracy_);
-        break;
+        ObAccuracy accuracy(key_info.part_keys_[i].accuracy_.valid_, 
+                            key_info.part_keys_[i].accuracy_.length_,
+                            key_info.part_keys_[i].accuracy_.precision_,
+                            key_info.part_keys_[i].accuracy_.scale_);
+        desc_hash->get_accuracies().at(key_info.part_keys_[i].idx_in_part_columns_) = accuracy;        
+        desc_hash->get_obj_types().at(key_info.part_keys_[i].idx_in_part_columns_) = static_cast<ObObjType>(key_info.part_keys_[i].obj_type_);
+        desc_hash->get_cs_types().at(key_info.part_keys_[i].idx_in_part_columns_) = static_cast<ObCollationType>(key_info.part_keys_[i].cs_type_);
       }
     }
+
     if (PARTITION_LEVEL_ONE == part_level) {
       first_part_desc_ = desc_hash;
+      if (OB_FAIL(init_first_part_map())) {
+        LOG_DEBUG("fail to create first part name id map", K(ret));
+      } else if (OB_FAIL(build_part_name_id_map(name_buf, name_len_buf, part_id_buf, all_first_part_name_buf_, all_first_part_name_length_, part_num, first_part_name_id_map_))) {
+        LOG_DEBUG("fail to build first part name id map", K(ret));
+      }
     } else if (PARTITION_LEVEL_TWO == part_level) {
       sub_part_desc_ = desc_hash;
+      if (OB_FAIL(init_sub_part_map())) {
+        LOG_DEBUG("fail to create temp sub part name id map", K(ret));
+      } else if (OB_FAIL(build_temp_sub_part_name_id_map(name_buf, name_len_buf, part_id_buf, part_num))) {
+        LOG_DEBUG("fail to build temp sub part name id map", K(ret));
+      }
     } else {
       ret = OB_INVALID_ARGUMENT;
       LOG_WARN("part level invalid", K(part_level), K(ret));
     }
   }
+
+  free_name_buf(name_buf, name_len_buf, part_id_buf);
   return ret;
 }
 
 int ObProxyPartMgr::build_sub_hash_part_with_non_template(const bool is_oracle_mode,
                                                           const ObPartitionFuncType part_func_type,
                                                           const int64_t part_space,
+                                                          const int64_t part_col_num,
                                                           const ObProxyPartKeyInfo &key_info,
                                                           ObResultSetFetcher &rs_fetcher,
                                                           const int64_t cluster_version)
@@ -323,7 +419,12 @@ int ObProxyPartMgr::build_sub_hash_part_with_non_template(const bool is_oracle_m
   void *tmp_buf = NULL;
   ObPartDescHash *desc_hash = NULL;
   common::ObPartDesc *sub_part_desc = NULL;
-  int64_t part_id = -1;
+  PART_NAME_BUF *name_buf = NULL;
+  int64_t *name_len_buf = NULL;
+  int64_t *part_id_buf = NULL;
+  int64_t first_part_id = -1;
+  int64_t sub_part_id = -1;
+  ObString sub_part_name;
 
   // alloc desc_range
   if (OB_ISNULL(tmp_buf = allocator_.alloc(sizeof(ObPartDescHash) * first_part_num_))) {
@@ -331,9 +432,12 @@ int ObProxyPartMgr::build_sub_hash_part_with_non_template(const bool is_oracle_m
     LOG_WARN("part mgr reach memory limit", K(ret));
   } else if (OB_ISNULL(sub_part_desc = new (tmp_buf) ObPartDescHash[first_part_num_])) {
     ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("failed to do placement new", K(tmp_buf), K(ret));
+    LOG_WARN("fail to do placement new", K(tmp_buf), K(ret));
+  } else if (OB_FAIL(alloc_name_buf(name_buf, name_len_buf, part_id_buf, all_sub_part_num_))) {
+    LOG_WARN("fail to alloc name buf", K(ret));
   }
 
+  int64_t index=0;
   for (int64_t i = 0; i < first_part_num_ && OB_SUCC(ret); ++i) {
     desc_hash = (((ObPartDescHash *)sub_part_desc) + i);
     if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version) && OB_ISNULL(desc_hash->tablet_id_array_ = (int64_t*)allocator_.alloc(sizeof(int64_t) * sub_part_num_[i]))) {
@@ -342,30 +446,52 @@ int ObProxyPartMgr::build_sub_hash_part_with_non_template(const bool is_oracle_m
     }
 
     for (int64_t j = 0; j < sub_part_num_[i] && OB_SUCC(ret); ++j) {
-      if (OB_FAIL(rs_fetcher.next())) {
-        LOG_WARN("failed to get next rs_fetcher", K(ret));
+      if (OB_FAIL(rs_fetcher.next()) || index >= all_sub_part_num_) {
+        LOG_WARN("fail to get next rs_fetcher", K(ret));
       } else {
-        PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_id", part_id, int64_t);
+        PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_id", first_part_id, int64_t);
+        PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "sub_part_id", sub_part_id, int64_t);
+        PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_name", sub_part_name);
         if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
           PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "tablet_id", desc_hash->tablet_id_array_[j], int64_t);
         }
+        if (sub_part_name.length() <= MAX_PART_NAME_LENGTH) {
+          MEMCPY(name_buf[index], sub_part_name.ptr(), sub_part_name.length());
+          name_len_buf[index] = sub_part_name.length();
+          if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
+            part_id_buf[index] = desc_hash->tablet_id_array_[j];
+          } else {
+            part_id_buf[index] = generate_phy_part_id(first_part_id, sub_part_id);
+          }
+          all_sub_part_name_length_ += sub_part_name.length();
+        } else {//treat too long name string as empty string
+          name_len_buf[index] = 0;
+        }
+        ++index;
       }
     }
-
     if (OB_SUCC(ret)) {
       desc_hash->set_oracle_mode(is_oracle_mode);
-      desc_hash->set_first_part_id(part_id);
+      desc_hash->set_first_part_id(first_part_id);
       desc_hash->set_part_space(part_space);
       desc_hash->set_part_num(sub_part_num_[i]);
       desc_hash->set_part_level(PARTITION_LEVEL_TWO);
       desc_hash->set_part_func_type(part_func_type);
-      // find the first match key, should consider whether the key is both part one and part two?
+      for (int i = 0; i < part_col_num; i++) {
+        desc_hash->get_accuracies().push_back(ObAccuracy());
+        desc_hash->get_obj_types().push_back(ObObjType());
+        desc_hash->get_cs_types().push_back(ObCollationType());
+      }
+      // find all keys in this level 
       for (int i = 0; i < key_info.key_num_; ++i) {
         if (static_cast<ObPartitionLevel>(key_info.part_keys_[i].level_) == PARTITION_LEVEL_TWO) {
-          desc_hash->set_part_key_type(static_cast<ObObjType>(key_info.part_keys_[i].obj_type_));
-          desc_hash->set_part_key_cs_type(static_cast<ObCollationType>(key_info.part_keys_[i].cs_type_));
-          desc_hash->set_accuracy(key_info.part_keys_[i].accuracy_);
-          break;
+          ObAccuracy accuracy(key_info.part_keys_[i].accuracy_.valid_, 
+                              key_info.part_keys_[i].accuracy_.length_,
+                              key_info.part_keys_[i].accuracy_.precision_,
+                              key_info.part_keys_[i].accuracy_.scale_);
+          desc_hash->get_accuracies().at(key_info.part_keys_[i].idx_in_part_columns_) = accuracy;
+          desc_hash->get_obj_types().at(key_info.part_keys_[i].idx_in_part_columns_) = static_cast<ObObjType>(key_info.part_keys_[i].obj_type_);
+          desc_hash->get_cs_types().at(key_info.part_keys_[i].idx_in_part_columns_) = static_cast<ObCollationType>(key_info.part_keys_[i].cs_type_);
         }
       }
     }
@@ -373,8 +499,14 @@ int ObProxyPartMgr::build_sub_hash_part_with_non_template(const bool is_oracle_m
 
   if (OB_SUCC(ret)) {
     sub_part_desc_ = sub_part_desc;
+    if (OB_FAIL(init_sub_part_map())) {
+      LOG_DEBUG("fail to create non temp sub part name id map", K(ret));
+    } else if (OB_FAIL(build_part_name_id_map(name_buf, name_len_buf, part_id_buf, all_sub_part_name_buf_, all_sub_part_name_length_, all_sub_part_num_, sub_part_name_id_map_))) {
+      LOG_DEBUG("fail to build non temp sub part name id map", K(ret));
+    }
   }
 
+  free_name_buf(name_buf, name_len_buf, part_id_buf);
   return ret;
 }
 
@@ -382,6 +514,7 @@ int ObProxyPartMgr::build_key_part(const ObPartitionLevel part_level,
                                    const ObPartitionFuncType part_func_type,
                                    const int64_t part_num,
                                    const int64_t part_space,
+                                   const int64_t part_col_num,
                                    const bool is_template_table,
                                    const ObProxyPartKeyInfo &key_info,
                                    ObResultSetFetcher *rs_fetcher /*NULL*/,
@@ -390,9 +523,11 @@ int ObProxyPartMgr::build_key_part(const ObPartitionLevel part_level,
   int ret = OB_SUCCESS;
   void *tmp_buf = NULL;
   ObPartDescKey *desc_key = NULL;
-  int64_t part_id = -1;
-  ObString part_name;
+  PART_NAME_BUF *name_buf = NULL;
+  int64_t *name_len_buf = NULL;
+  int64_t *part_id_buf = NULL;
   int64_t sub_part_num = 0;
+  ObString part_name;
   int64_t *part_array = NULL;
 
   if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version) && PARTITION_LEVEL_TWO == part_level) {
@@ -404,6 +539,8 @@ int ObProxyPartMgr::build_key_part(const ObPartitionLevel part_level,
   } else if (OB_ISNULL(desc_key = new (tmp_buf) ObPartDescKey())) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("part mgr reach memory limit", K(ret));
+  } else if (OB_FAIL(alloc_name_buf(name_buf, name_len_buf, part_id_buf, part_num))) {
+    LOG_WARN("fail to alloc name buf", K(ret));
   } else if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version) && OB_ISNULL(desc_key->tablet_id_array_ = (int64_t*)allocator_.alloc(sizeof(int64_t) * part_num))) {
     ret = OB_REACH_MEMORY_LIMIT;
     LOG_WARN("part mgr reach memory limit", K(ret), K(part_num));
@@ -411,46 +548,70 @@ int ObProxyPartMgr::build_key_part(const ObPartitionLevel part_level,
     ret = OB_REACH_MEMORY_LIMIT;
     LOG_WARN("fail to alloc part array", K(ret), K(part_num));
   } else {
-    if (NULL != rs_fetcher && PARTITION_LEVEL_ONE == part_level) {
-      first_part_num_ = part_num;
-      if (OB_ISNULL(tmp_buf = allocator_.alloc(sizeof(ObPartNameIdPair) * part_num))) {
-        ret = OB_REACH_MEMORY_LIMIT;
-        LOG_WARN("part mgr reach memory limit", K(ret));
-      } else if (OB_ISNULL(part_pair_array_ = new (tmp_buf) ObPartNameIdPair[part_num])) {
-        ret = OB_ERR_UNEXPECTED;
-        LOG_WARN("failed to do placement new", K(tmp_buf), K(part_num), K(ret));
-      } else if (!is_template_table && OB_ISNULL(sub_part_num_ = (int64_t *)allocator_.alloc(sizeof(int64_t) * part_num))) {
-        ret = OB_REACH_MEMORY_LIMIT;
-        LOG_WARN("part mgr reach memory limit", K(ret));
-      }
-      for (int64_t i = 0; i < part_num && OB_SUCC(ret); ++i) {
-        if (OB_FAIL(rs_fetcher->next())) {
-          LOG_DEBUG("failed to get next rs_fetcher", K(ret));
-        } else {
-          PROXY_EXTRACT_INT_FIELD_MYSQL(*rs_fetcher, "part_id", part_id, int64_t);
-          PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(*rs_fetcher, "part_name", part_name);
-          part_pair_array_[i].set_part_id(part_id);
-          if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
-            int64_t tablet_id = -1;
-            PROXY_EXTRACT_INT_FIELD_MYSQL(*rs_fetcher, "tablet_id", tablet_id, int64_t);
-            part_pair_array_[i].set_tablet_id(tablet_id);
-            desc_key->tablet_id_array_[i] = tablet_id;
-            part_array[i] = part_id;
-          }
-          if (OB_FAIL(part_pair_array_[i].set_part_name(part_name))) {
-            LOG_WARN("fail to set part name", K(part_name), K(ret));
-          } else if (!is_template_table) {
-            PROXY_EXTRACT_INT_FIELD_MYSQL(*rs_fetcher, "sub_part_num", sub_part_num, int64_t);
-            sub_part_num_[i] = sub_part_num;
+    if (NULL != rs_fetcher) {
+      if (PARTITION_LEVEL_ONE == part_level) {
+        first_part_num_ = part_num;
+        if (!is_template_table && OB_ISNULL(sub_part_num_ = (int64_t *)allocator_.alloc(sizeof(int64_t) * part_num))) {
+          ret = OB_REACH_MEMORY_LIMIT;
+          LOG_WARN("part mgr reach memory limit", K(ret));
+        }
+        for (int64_t i = 0; i < part_num && OB_SUCC(ret); ++i) {
+          if (OB_FAIL(rs_fetcher->next())) {
+            LOG_DEBUG("fail to get next rs_fetcher", K(ret));
+          } else {
+            PROXY_EXTRACT_INT_FIELD_MYSQL(*rs_fetcher, "part_id", part_id_buf[i], int64_t);
+            PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(*rs_fetcher, "part_name", part_name);
+
+            if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
+              int64_t tablet_id = -1;
+              part_array[i] = part_id_buf[i];
+              PROXY_EXTRACT_INT_FIELD_MYSQL(*rs_fetcher, "tablet_id", tablet_id, int64_t);
+              desc_key->tablet_id_array_[i] = tablet_id;
+              if ((tablet_id != -1) && (tablet_id != 0)) {
+                part_id_buf[i] = tablet_id;
+              }
+            }
+
+            if (part_name.length() <= MAX_PART_NAME_LENGTH) {
+              MEMCPY(name_buf[i], part_name.ptr(), part_name.length());
+              name_len_buf[i] = part_name.length();
+              all_first_part_name_length_ += part_name.length();
+            } else {//treat too long name string as empty string
+              name_len_buf[i] = 0;
+            }
+
+            if (!is_template_table) {
+              PROXY_EXTRACT_INT_FIELD_MYSQL(*rs_fetcher, "sub_part_num", sub_part_num, int64_t);
+              sub_part_num_[i] = sub_part_num;
+            }
           }
+        } // end for
+        if (OB_ITER_END == ret) {
+          LOG_DEBUG("empty first key part info, maybe ob version < 2.1", K(ret));
+          ret = OB_SUCCESS;
         }
-      } // end for
-      if (OB_ITER_END == ret) {
-        LOG_DEBUG("empty first key part info, maybe ob version < 2.1", K(ret));
-        ret = OB_SUCCESS;
+      } else if (PARTITION_LEVEL_TWO == part_level) {
+        for (int64_t i = 0; i < part_num && OB_SUCC(ret); ++i) {//part_num=sub part num
+          if (OB_FAIL(rs_fetcher->next())) {
+            LOG_DEBUG("fail to get next rs_fetcher", K(ret));
+          } else {
+            PROXY_EXTRACT_INT_FIELD_MYSQL(*rs_fetcher, "sub_part_id", part_id_buf[i], int64_t);
+            PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(*rs_fetcher, "part_name", part_name);
+            if (part_name.length() <= MAX_PART_NAME_LENGTH) {
+              MEMCPY(name_buf[i], part_name.ptr(), part_name.length());
+              name_len_buf[i] = part_name.length();
+              all_sub_part_name_length_ += part_name.length();
+            } else {//treat too long name string as empty string
+              name_len_buf[i] = 0;
+            }
+          }
+        } // end for
+      } else {
+        //nothing
       }
-    } // end NULL != rs_fetcher && PARTITION_LEVEL_ONE == part_level
+    } // end NULL != rs_fetcher
   }
+
   if (OB_SUCC(ret)) {
     if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
       desc_key->set_part_array(part_array);
@@ -459,29 +620,50 @@ int ObProxyPartMgr::build_key_part(const ObPartitionLevel part_level,
     desc_key->set_part_num(part_num);
     desc_key->set_part_level(part_level);
     desc_key->set_part_func_type(part_func_type);
-    // find the first match key, should consider whether the key is both part one and part two?
+    for (int i = 0; i < part_col_num; i++) {
+      desc_key->get_accuracies().push_back(ObAccuracy());
+      desc_key->get_obj_types().push_back(ObObjType());
+      desc_key->get_cs_types().push_back(ObCollationType());
+    }
+    // find all keys in this level 
     for (int i = 0; i < key_info.key_num_; ++i) {
       if (static_cast<ObPartitionLevel>(key_info.part_keys_[i].level_) == part_level) {
-        desc_key->set_part_key_type(static_cast<ObObjType>(key_info.part_keys_[i].obj_type_));
-        desc_key->set_part_key_cs_type(static_cast<ObCollationType>(key_info.part_keys_[i].cs_type_));
-        desc_key->set_accuracy(key_info.part_keys_[i].accuracy_);
-        break;
+        ObAccuracy accuracy(key_info.part_keys_[i].accuracy_.valid_, 
+                              key_info.part_keys_[i].accuracy_.length_,
+                              key_info.part_keys_[i].accuracy_.precision_,
+                              key_info.part_keys_[i].accuracy_.scale_);
+        desc_key->get_accuracies().at(key_info.part_keys_[i].idx_in_part_columns_) = accuracy;
+        desc_key->get_obj_types().at(key_info.part_keys_[i].idx_in_part_columns_) = static_cast<ObObjType>(key_info.part_keys_[i].obj_type_);
+        desc_key->get_cs_types().at(key_info.part_keys_[i].idx_in_part_columns_) = static_cast<ObCollationType>(key_info.part_keys_[i].cs_type_);
       }
     }
     if (PARTITION_LEVEL_ONE == part_level) {
       first_part_desc_ = desc_key;
+      if (OB_FAIL(init_first_part_map())) {
+        LOG_DEBUG("fail to create first part name id map", K(ret));
+      } else if (OB_FAIL(build_part_name_id_map(name_buf, name_len_buf, part_id_buf, all_first_part_name_buf_, all_first_part_name_length_, part_num, first_part_name_id_map_))) {
+        LOG_DEBUG("fail to build first part name id map", K(ret));
+      }
     } else if (PARTITION_LEVEL_TWO == part_level) {
       sub_part_desc_ = desc_key;
+      if (OB_FAIL(init_sub_part_map())) {
+        LOG_DEBUG("fail to create temp sub part name id map", K(ret));
+      } else if (OB_FAIL(build_temp_sub_part_name_id_map(name_buf, name_len_buf, part_id_buf, part_num))) {
+        LOG_DEBUG("fail to build temp sub part name id map", K(ret));
+      }
     } else {
       ret = OB_INVALID_ARGUMENT;
       LOG_WARN("part level invalid", K(part_level), K(ret));
     }
   }
+
+  free_name_buf(name_buf, name_len_buf, part_id_buf);
   return ret;
 }
 
 int ObProxyPartMgr::build_sub_key_part_with_non_template(const ObPartitionFuncType part_func_type,
                                                          const int64_t part_space,
+                                                         const int64_t part_col_num,
                                                          const ObProxyPartKeyInfo &key_info,
                                                          ObResultSetFetcher &rs_fetcher,
                                                          const int64_t cluster_version)
@@ -490,7 +672,12 @@ int ObProxyPartMgr::build_sub_key_part_with_non_template(const ObPartitionFuncTy
   void *tmp_buf = NULL;
   ObPartDescKey *desc_key = NULL;
   common::ObPartDesc *sub_part_desc = NULL;
-  int64_t part_id = -1;
+  PART_NAME_BUF *name_buf = NULL;
+  int64_t *name_len_buf = NULL;
+  int64_t *part_id_buf = NULL;
+  int64_t first_part_id = -1;
+  int64_t sub_part_id = -1;
+  ObString sub_part_name;
 
   // alloc desc_range
   if (OB_ISNULL(tmp_buf = allocator_.alloc(sizeof(ObPartDescKey) * first_part_num_))) {
@@ -498,9 +685,12 @@ int ObProxyPartMgr::build_sub_key_part_with_non_template(const ObPartitionFuncTy
     LOG_WARN("part mgr reach memory limit", K(ret));
   } else if (OB_ISNULL(sub_part_desc = new (tmp_buf) ObPartDescKey[first_part_num_])) {
     ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("failed to do placement new", K(tmp_buf), K(ret));
+    LOG_WARN("fail to do placement new", K(tmp_buf), K(ret));
+  } else if (OB_FAIL(alloc_name_buf(name_buf, name_len_buf, part_id_buf, all_sub_part_num_))) {
+    LOG_WARN("fail to alloc name buf", K(ret));
   }
 
+  int64_t index=0;
   for (int64_t i = 0; i < first_part_num_ && OB_SUCC(ret); ++i) {
     desc_key = (((ObPartDescKey *)sub_part_desc) + i);
     if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version) && OB_ISNULL(desc_key->tablet_id_array_ = (int64_t*)allocator_.alloc(sizeof(int64_t) * sub_part_num_[i]))) {
@@ -509,29 +699,52 @@ int ObProxyPartMgr::build_sub_key_part_with_non_template(const ObPartitionFuncTy
     }
 
     for (int64_t j = 0; j < sub_part_num_[i] && OB_SUCC(ret); ++j) {
-      if (OB_FAIL(rs_fetcher.next())) {
-        LOG_WARN("failed to get next rs_fetcher", K(ret));
+      if (OB_FAIL(rs_fetcher.next()) || index >= all_sub_part_num_) {
+        LOG_WARN("fail to get next rs_fetcher", K(ret));
       } else {
-        PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_id", part_id, int64_t);
+        PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_id", first_part_id, int64_t);
+        PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "sub_part_id", sub_part_id, int64_t);
+        PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_name", sub_part_name);
         if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
           PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "tablet_id", desc_key->tablet_id_array_[j], int64_t);
         }
+        if (sub_part_name.length() <= MAX_PART_NAME_LENGTH) {
+          MEMCPY(name_buf[index], sub_part_name.ptr(), sub_part_name.length());
+          name_len_buf[index] = sub_part_name.length();
+          if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
+            part_id_buf[index] = desc_key->tablet_id_array_[j];
+          } else {
+            part_id_buf[index] = generate_phy_part_id(first_part_id, sub_part_id);
+          }
+          all_sub_part_name_length_ += sub_part_name.length();
+        } else {//treat too long name string as empty string
+          name_len_buf[index] = 0;
+        }
+        ++index;
       }
     }
 
     if (OB_SUCC(ret)) {
-      desc_key->set_first_part_id(part_id);
+      desc_key->set_first_part_id(first_part_id);
       desc_key->set_part_space(part_space);
       desc_key->set_part_num(sub_part_num_[i]);
       desc_key->set_part_level(PARTITION_LEVEL_TWO);
       desc_key->set_part_func_type(part_func_type);
-      // find the first match key, should consider whether the key is both part one and part two?
+      for (int i = 0; i < part_col_num; i++) {
+        desc_key->get_accuracies().push_back(ObAccuracy());
+        desc_key->get_obj_types().push_back(ObObjType());
+        desc_key->get_cs_types().push_back(ObCollationType());
+      }
+      // find all keys in this level 
       for (int i = 0; i < key_info.key_num_; ++i) {
         if (static_cast<ObPartitionLevel>(key_info.part_keys_[i].level_) == PARTITION_LEVEL_TWO) {
-          desc_key->set_part_key_type(static_cast<ObObjType>(key_info.part_keys_[i].obj_type_));
-          desc_key->set_part_key_cs_type(static_cast<ObCollationType>(key_info.part_keys_[i].cs_type_));
-          desc_key->set_accuracy(key_info.part_keys_[i].accuracy_);
-          break;
+          ObAccuracy accuracy(key_info.part_keys_[i].accuracy_.valid_, 
+                              key_info.part_keys_[i].accuracy_.length_,
+                              key_info.part_keys_[i].accuracy_.precision_,
+                              key_info.part_keys_[i].accuracy_.scale_);
+          desc_key->get_accuracies().at(key_info.part_keys_[i].idx_in_part_columns_) = accuracy;
+          desc_key->get_obj_types().at(key_info.part_keys_[i].idx_in_part_columns_) = static_cast<ObObjType>(key_info.part_keys_[i].obj_type_);
+          desc_key->get_cs_types().at(key_info.part_keys_[i].idx_in_part_columns_) = static_cast<ObCollationType>(key_info.part_keys_[i].cs_type_);
         }
       }
     }
@@ -539,14 +752,21 @@ int ObProxyPartMgr::build_sub_key_part_with_non_template(const ObPartitionFuncTy
 
   if (OB_SUCC(ret)) {
     sub_part_desc_ = sub_part_desc;
+    if (OB_FAIL(init_sub_part_map())) {
+      LOG_DEBUG("fail to create non temp sub part name id map", K(ret));
+    } else if (OB_FAIL(build_part_name_id_map(name_buf, name_len_buf, part_id_buf, all_sub_part_name_buf_, all_sub_part_name_length_, all_sub_part_num_, sub_part_name_id_map_))) {
+      LOG_DEBUG("fail to build non temp sub part name id map", K(ret));
+    }
   }
 
+  free_name_buf(name_buf, name_len_buf, part_id_buf);
   return ret;
 }
 
 int ObProxyPartMgr::build_range_part(const ObPartitionLevel part_level,
                                      const ObPartitionFuncType part_func_type,
                                      const int64_t part_num,
+                                     const int64_t part_col_num,
                                      const bool is_template_table,
                                      const ObProxyPartKeyInfo &key_info,
                                      ObResultSetFetcher &rs_fetcher,
@@ -556,8 +776,11 @@ int ObProxyPartMgr::build_range_part(const ObPartitionLevel part_level,
   void *tmp_buf = NULL;
   ObPartDescRange *desc_range = NULL;
   RangePartition *part_array = NULL;
-  ObString part_name;
+  PART_NAME_BUF *name_buf = NULL;
+  int64_t *name_len_buf = NULL;
+  int64_t *part_id_buf = NULL;
   int64_t sub_part_num = 0;
+  ObString part_name;
 
   if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version) && PARTITION_LEVEL_TWO == part_level) {
     ret = OB_ERR_UNEXPECTED;
@@ -568,7 +791,7 @@ int ObProxyPartMgr::build_range_part(const ObPartitionLevel part_level,
     LOG_WARN("part mgr reach memory limit", K(ret));
   } else if (OB_ISNULL(desc_range = new (tmp_buf) ObPartDescRange())) {
     ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("failed to do placement new", K(tmp_buf), K(ret));
+    LOG_WARN("fail to do placement new", K(tmp_buf), K(ret));
   } else if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version) && OB_ISNULL(desc_range->tablet_id_array_ = (int64_t*)allocator_.alloc(sizeof(int64_t) * part_num))) {
     ret = OB_REACH_MEMORY_LIMIT;
     LOG_WARN("part mgr reach memory limit", K(ret));
@@ -577,17 +800,13 @@ int ObProxyPartMgr::build_range_part(const ObPartitionLevel part_level,
     LOG_WARN("part mgr reach memory limit", K(ret));
   } else if (OB_ISNULL(part_array = new (tmp_buf) RangePartition[part_num])) {
     ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("failed to do placement new", K(tmp_buf), K(part_num), K(ret));
+    LOG_WARN("fail to do placement new", K(tmp_buf), K(part_num), K(ret));
+  } else if (OB_FAIL(alloc_name_buf(name_buf, name_len_buf, part_id_buf, part_num))) {
+    LOG_WARN("fail to alloc name buf", K(ret));
   } else {
     if (PARTITION_LEVEL_ONE == part_level) {
       first_part_num_ = part_num;
-      if (OB_ISNULL(tmp_buf = allocator_.alloc(sizeof(ObPartNameIdPair) * part_num))) {
-        ret = OB_REACH_MEMORY_LIMIT;
-        LOG_WARN("part mgr reach memory limit", K(ret));
-      } else if (OB_ISNULL(part_pair_array_ = new (tmp_buf) ObPartNameIdPair[part_num])) {
-        ret = OB_ERR_UNEXPECTED;
-        LOG_WARN("failed to do placement new", K(tmp_buf), K(part_num), K(ret));
-      } else if (!is_template_table && OB_ISNULL(sub_part_num_ = (int64_t *)allocator_.alloc(sizeof(int64_t) * part_num))) {
+      if (!is_template_table && OB_ISNULL(sub_part_num_ = (int64_t *)allocator_.alloc(sizeof(int64_t) * part_num))) {
         ret = OB_REACH_MEMORY_LIMIT;
         LOG_WARN("part mgr reach memory limit", K(ret));
       }
@@ -599,27 +818,42 @@ int ObProxyPartMgr::build_range_part(const ObPartitionLevel part_level,
   int64_t pos = 0;
   for (int64_t i = 0; i < part_num && OB_SUCC(ret); ++i) {
     if (OB_FAIL(rs_fetcher.next())) {
-      LOG_WARN("failed to get next rs_fetcher", K(ret));
+      LOG_WARN("fail to get next rs_fetcher", K(ret));
     } else {
       if (PARTITION_LEVEL_ONE == part_level) {
         PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_id", part_array[i].part_id_, int64_t);
+        part_id_buf[i] = part_array[i].part_id_;
         if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
           int64_t tablet_id = -1;
           PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "tablet_id", tablet_id, int64_t);
-          part_pair_array_[i].tablet_id_ = tablet_id;
           desc_range->tablet_id_array_[i] = tablet_id;
+          if ((tablet_id != -1) && (tablet_id != 0)) {
+            part_id_buf[i] = tablet_id;
+          }
         }
         PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_name", part_name);
-
-        part_pair_array_[i].set_part_id(part_array[i].part_id_);
-        if (OB_FAIL(part_pair_array_[i].set_part_name(part_name))) {
-          LOG_WARN("fail to set part name", K(part_name), K(ret));
-        } else if (!is_template_table) {
+        if (part_name.length() <= MAX_PART_NAME_LENGTH) {
+          MEMCPY(name_buf[i], part_name.ptr(), part_name.length());
+          name_len_buf[i] = part_name.length();
+          all_first_part_name_length_ += part_name.length();
+        } else {//treat too long name string as empty string
+          name_len_buf[i] = 0;
+        }
+        if (!is_template_table) {
           PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "sub_part_num", sub_part_num, int64_t);
           sub_part_num_[i] = sub_part_num;
         }
       } else if (PARTITION_LEVEL_TWO == part_level) {
-        PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "sub_part_id", part_array[i].part_id_, int64_t);
+        PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "sub_part_id", part_array[i].part_id_, int64_t);//sub_part_id
+        PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_name", part_name);
+        part_id_buf[i] = part_array[i].part_id_;
+        if (part_name.length() <= MAX_PART_NAME_LENGTH) {
+          MEMCPY(name_buf[i], part_name.ptr(), part_name.length());
+          name_len_buf[i] = part_name.length();
+          all_sub_part_name_length_ += part_name.length();
+        } else {//treat too long name string as empty string
+          name_len_buf[i] = 0;
+        }
       } else {
         ret = OB_INVALID_ARGUMENT;
       }
@@ -627,10 +861,10 @@ int ObProxyPartMgr::build_range_part(const ObPartitionLevel part_level,
 
       pos = 0;
       if (OB_FAIL(ret)) {
-        LOG_WARN("failed to fetch result", K(ret));
+        LOG_WARN("fail to fetch result", K(ret));
       } else if (OB_FAIL(part_array[i].high_bound_val_.deserialize(allocator_, tmp_str.ptr(),
                                                                    tmp_str.length(), pos))) {
-        LOG_WARN("failed to deserialize", K(tmp_str), K(ret));
+        LOG_WARN("fail to deserialize", K(tmp_str), K(ret));
       } else {
         // do nothing
       }
@@ -641,7 +875,7 @@ int ObProxyPartMgr::build_range_part(const ObPartitionLevel part_level,
 
   if (OB_SUCC(ret)) {
     if (OB_FAIL(desc_range->set_part_array(part_array, part_num))) {
-      LOG_WARN("failed to set_part_array, unexpected ", K(ret));
+      LOG_WARN("fail to set_part_array, unexpected ", K(ret));
     }
   }
 
@@ -649,25 +883,45 @@ int ObProxyPartMgr::build_range_part(const ObPartitionLevel part_level,
   if (OB_SUCC(ret)) {
     desc_range->set_part_level(part_level);
     desc_range->set_part_func_type(part_func_type);
-    for (int k = 0; k < key_info.key_num_; ++k) {
-      if (static_cast<ObPartitionLevel>(key_info.part_keys_[k].level_) == part_level) {
-        desc_range->set_accuracy(key_info.part_keys_[k].accuracy_);
-        break;
+    for (int i = 0; i < part_col_num; i++) {
+      desc_range->get_accuracies().push_back(ObAccuracy());
+    }
+    // find all keys in this level 
+    for (int i = 0; i < key_info.key_num_; ++i) {
+      if (static_cast<ObPartitionLevel>(key_info.part_keys_[i].level_) == part_level) {
+        ObAccuracy accuracy(key_info.part_keys_[i].accuracy_.valid_, 
+                              key_info.part_keys_[i].accuracy_.length_,
+                              key_info.part_keys_[i].accuracy_.precision_,
+                              key_info.part_keys_[i].accuracy_.scale_);
+        desc_range->get_accuracies().at(key_info.part_keys_[i].idx_in_part_columns_) = accuracy;
       }
     }
     if (PARTITION_LEVEL_ONE == part_level) {
       first_part_desc_ = desc_range;
+      if (OB_FAIL(init_first_part_map())) {
+        LOG_DEBUG("fail to create first part name id map", K(ret));
+      } else if (OB_FAIL(build_part_name_id_map(name_buf, name_len_buf, part_id_buf, all_first_part_name_buf_, all_first_part_name_length_, part_num, first_part_name_id_map_))) {
+        LOG_DEBUG("fail to build first part name id map", K(ret));
+      }
     } else if (PARTITION_LEVEL_TWO == part_level) {
       sub_part_desc_ = desc_range;
+      if (OB_FAIL(init_sub_part_map())) {
+        LOG_DEBUG("fail to create temp sub part name id map", K(ret));
+      } else if (OB_FAIL(build_temp_sub_part_name_id_map(name_buf, name_len_buf, part_id_buf, part_num))) {
+        LOG_DEBUG("fail to build temp sub part name id map", K(ret));
+      }
     } else {
       ret = OB_INVALID_ARGUMENT;
       LOG_WARN("part level invalid", K(part_level), K(ret));
     }
   }
+
+  free_name_buf(name_buf, name_len_buf, part_id_buf);
   return ret;
 }
 
 int ObProxyPartMgr::build_sub_range_part_with_non_template(const ObPartitionFuncType part_func_type,
+                                                           const int64_t part_col_num,
                                                            const ObProxyPartKeyInfo &key_info,
                                                            ObResultSetFetcher &rs_fetcher,
                                                            const int64_t cluster_version)
@@ -676,6 +930,10 @@ int ObProxyPartMgr::build_sub_range_part_with_non_template(const ObPartitionFunc
   void *tmp_buf = NULL;
   RangePartition *part_array = NULL;
   common::ObPartDesc *sub_part_desc = NULL;
+  PART_NAME_BUF *name_buf = NULL;
+  int64_t *name_len_buf = NULL;
+  int64_t *part_id_buf = NULL;
+  ObString sub_part_name;
 
   // alloc desc_range
   if (OB_ISNULL(tmp_buf = allocator_.alloc(sizeof(ObPartDescRange) * first_part_num_))) {
@@ -683,11 +941,13 @@ int ObProxyPartMgr::build_sub_range_part_with_non_template(const ObPartitionFunc
     LOG_WARN("part mgr reach memory limit", K(ret));
   } else if (OB_ISNULL(sub_part_desc = new (tmp_buf) ObPartDescRange[first_part_num_])) {
     ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("failed to do placement new", K(tmp_buf), K(ret));
+    LOG_WARN("fail to do placement new", K(tmp_buf), K(ret));
+  } else if (OB_FAIL(alloc_name_buf(name_buf, name_len_buf, part_id_buf, all_sub_part_num_))) {
+    LOG_WARN("fail to alloc name buf", K(ret));
   }
-
   // build desc_range
   ObString tmp_str;
+  int64_t index = 0;
   int64_t pos = 0;
   ObPartDescRange *desc_range = NULL;
   for (int64_t i = 0; i < first_part_num_ && OB_SUCC(ret); ++i) {
@@ -698,7 +958,7 @@ int ObProxyPartMgr::build_sub_range_part_with_non_template(const ObPartitionFunc
       LOG_WARN("part mgr reach memory limit", K(ret));
     } else if (OB_ISNULL(part_array = new (tmp_buf) RangePartition[sub_part_num_[i]])) {
       ret = OB_ERR_UNEXPECTED;
-      LOG_WARN("failed to do placement new", K(tmp_buf), "sub_part_index", i,
+      LOG_WARN("fail to do placement new", K(tmp_buf), "sub_part_index", i,
                "sub_part_num", sub_part_num_[i], K(ret));
     } else if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version) && OB_ISNULL(desc_range->tablet_id_array_ = (int64_t*)allocator_.alloc(sizeof(int64_t) * sub_part_num_[i]))) {
       ret = OB_REACH_MEMORY_LIMIT;
@@ -706,22 +966,37 @@ int ObProxyPartMgr::build_sub_range_part_with_non_template(const ObPartitionFunc
     }
 
     for (int64_t j = 0; j < sub_part_num_[i] && OB_SUCC(ret); ++j) {
-      if (OB_FAIL(rs_fetcher.next())) {
-        LOG_WARN("failed to get next rs_fetcher", K(ret));
+      if (OB_FAIL(rs_fetcher.next()) || index >= all_sub_part_num_) {
+        LOG_WARN("fail to get next rs_fetcher", K(ret));
       } else {
         PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_id", part_array[j].first_part_id_, int64_t);
         PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "sub_part_id", part_array[j].part_id_, int64_t);
         PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "high_bound_val_bin", tmp_str);
+
         if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
           PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "tablet_id", desc_range->tablet_id_array_[j], int64_t);
         }
 
+        PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_name", sub_part_name);
+        if (sub_part_name.length() <= MAX_PART_NAME_LENGTH) {
+          MEMCPY(name_buf[index], sub_part_name.ptr(), sub_part_name.length());
+          name_len_buf[index] = sub_part_name.length();
+          if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
+            part_id_buf[index] = desc_range->tablet_id_array_[j];
+          } else {
+            part_id_buf[index] = generate_phy_part_id(part_array[j].first_part_id_, part_array[j].part_id_);
+          }
+          all_sub_part_name_length_ += sub_part_name.length();
+        } else {//treat too long name string as empty string
+          name_len_buf[index] = 0;
+        }
+        ++index;
         pos = 0;
         if (OB_FAIL(ret)) {
-          LOG_WARN("failed to fetch result", K(ret));
+          LOG_WARN("fail to fetch result", K(ret));
         } else if (OB_FAIL(part_array[j].high_bound_val_.deserialize(allocator_, tmp_str.ptr(),
                                                                      tmp_str.length(), pos))) {
-          LOG_WARN("failed to deserialize", K(tmp_str), K(ret));
+          LOG_WARN("fail to deserialize", K(tmp_str), K(ret));
         } else {
           // do nothing
         }
@@ -731,28 +1006,42 @@ int ObProxyPartMgr::build_sub_range_part_with_non_template(const ObPartitionFunc
     if (OB_SUCC(ret)) {
       desc_range->set_part_level(PARTITION_LEVEL_TWO);
       desc_range->set_part_func_type(part_func_type);
-      for (int k = 0; k < key_info.key_num_; ++k) {
-        if (static_cast<ObPartitionLevel>(key_info.part_keys_[k].level_) == PARTITION_LEVEL_TWO) {
-          desc_range->set_accuracy(key_info.part_keys_[k].accuracy_);
-          break;
+      for (int i = 0; i < part_col_num; i++) {
+        desc_range->get_accuracies().push_back(ObAccuracy());
+      }
+      // find all keys in this level 
+      for (int i = 0; i < key_info.key_num_; ++i) {
+        if (static_cast<ObPartitionLevel>(key_info.part_keys_[i].level_) == PARTITION_LEVEL_TWO) {
+          ObAccuracy accuracy(key_info.part_keys_[i].accuracy_.valid_, 
+                              key_info.part_keys_[i].accuracy_.length_,
+                              key_info.part_keys_[i].accuracy_.precision_,
+                              key_info.part_keys_[i].accuracy_.scale_);
+          desc_range->get_accuracies().at(key_info.part_keys_[i].idx_in_part_columns_) = accuracy;
         }
       }
       if (OB_FAIL(desc_range->set_part_array(part_array, sub_part_num_[i]))) {
-        LOG_WARN("failed to set_part_array, unexpected ", K(ret));
+        LOG_WARN("fail to set_part_array, unexpected ", K(ret));
       }
     }
   } // end of for
 
   if (OB_SUCC(ret)) {
     sub_part_desc_ = sub_part_desc;
+    if (OB_FAIL(init_sub_part_map())) {
+      LOG_DEBUG("fail to create non temp sub part name id map", K(ret));
+    } else if (OB_FAIL(build_part_name_id_map(name_buf, name_len_buf, part_id_buf, all_sub_part_name_buf_, all_sub_part_name_length_, all_sub_part_num_, sub_part_name_id_map_))) {
+      LOG_DEBUG("fail to build non temp sub part name id map", K(ret));
+    }
   }
 
+  free_name_buf(name_buf, name_len_buf, part_id_buf);
   return ret;
 }
 
 int ObProxyPartMgr::build_list_part(const ObPartitionLevel part_level,
                                     const ObPartitionFuncType part_func_type,
                                     const int64_t part_num,
+                                    const int64_t part_col_num,
                                     const bool is_template_table,
                                     const ObProxyPartKeyInfo &key_info,
                                     ObResultSetFetcher &rs_fetcher,
@@ -762,8 +1051,11 @@ int ObProxyPartMgr::build_list_part(const ObPartitionLevel part_level,
   void *tmp_buf = NULL;
   ObPartDescList *desc_list = NULL;
   ListPartition *part_array = NULL;
-  ObString part_name;
+  PART_NAME_BUF *name_buf = NULL;
+  int64_t *name_len_buf = NULL;
+  int64_t *part_id_buf = NULL;
   int64_t sub_part_num = 0;
+  ObString part_name;
 
   if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version) && PARTITION_LEVEL_TWO == part_level) {
     ret = OB_ERR_UNEXPECTED;
@@ -774,7 +1066,7 @@ int ObProxyPartMgr::build_list_part(const ObPartitionLevel part_level,
     LOG_WARN("part mgr reach memory limit", K(ret));
   } else if (OB_ISNULL(desc_list = new (tmp_buf) ObPartDescList())) {
     ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("failed to do placement new", K(tmp_buf), K(ret));
+    LOG_WARN("fail to do placement new", K(tmp_buf), K(ret));
   } else if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version) && OB_ISNULL(desc_list->tablet_id_array_ = (int64_t*)allocator_.alloc(sizeof(int64_t) * part_num))) {
     ret = OB_REACH_MEMORY_LIMIT;
     LOG_WARN("part mgr reach memory limit, alloc tablet id array failed", K(ret));
@@ -783,17 +1075,13 @@ int ObProxyPartMgr::build_list_part(const ObPartitionLevel part_level,
     LOG_WARN("part mgr reach memory limit", K(ret));
   } else if (OB_ISNULL(part_array = new (tmp_buf) ListPartition[part_num])) {
     ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("failed to do placement new", K(tmp_buf), K(part_num), K(ret));
+    LOG_WARN("fail to do placement new", K(tmp_buf), K(part_num), K(ret));
+  } else if (OB_FAIL(alloc_name_buf(name_buf, name_len_buf, part_id_buf, part_num))) {
+    LOG_WARN("fail to alloc name buf", K(ret));
   } else {
     if (PARTITION_LEVEL_ONE == part_level) {
       first_part_num_ = part_num;
-      if (OB_ISNULL(tmp_buf = allocator_.alloc(sizeof(ObPartNameIdPair) * part_num))) {
-        ret = OB_REACH_MEMORY_LIMIT;
-        LOG_WARN("part mgr reach memory limit", K(ret));
-      } else if (OB_ISNULL(part_pair_array_ = new (tmp_buf) ObPartNameIdPair[part_num])) {
-        ret = OB_ERR_UNEXPECTED;
-        LOG_WARN("failed to do placement new", K(tmp_buf), K(part_num), K(ret));
-      } else if (!is_template_table && OB_ISNULL(sub_part_num_ = (int64_t *)allocator_.alloc(sizeof(int64_t) * part_num))) {
+      if (!is_template_table && OB_ISNULL(sub_part_num_ = (int64_t *)allocator_.alloc(sizeof(int64_t) * part_num))) {
         ret = OB_REACH_MEMORY_LIMIT;
         LOG_WARN("part mgr reach memory limit", K(ret));
       }
@@ -806,29 +1094,44 @@ int ObProxyPartMgr::build_list_part(const ObPartitionLevel part_level,
   ObNewRow row;
   ObNewRow tmp_row;
   ObObj obj_array[OB_USER_ROW_MAX_COLUMNS_COUNT];
-  row.assign(obj_array, OB_USER_ROW_MAX_COLUMNS_COUNT);
   for (int64_t i = 0; i < part_num && OB_SUCC(ret); ++i) {
     if (OB_FAIL(rs_fetcher.next())) {
-      LOG_WARN("failed to get next rs_fetcher", K(ret));
+      LOG_WARN("fail to get next rs_fetcher", K(ret));
     } else {
       if (PARTITION_LEVEL_ONE == part_level) {
         PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_id", part_array[i].part_id_, int64_t);
-        PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_name", part_name);
+        part_id_buf[i] = part_array[i].part_id_;
         if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
           int64_t tablet_id = -1;
           PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "tablet_id", tablet_id, int64_t);
-          part_pair_array_[i].tablet_id_ = tablet_id;
           desc_list->tablet_id_array_[i] = tablet_id;
+          if ((tablet_id != -1) && (tablet_id != 0)) {
+            part_id_buf[i] = tablet_id;
+          }
         }
-        part_pair_array_[i].set_part_id(part_array[i].part_id_);
-        if (OB_FAIL(part_pair_array_[i].set_part_name(part_name))) {
-          LOG_WARN("fail to set part name", K(part_name), K(ret));
-        } else if (!is_template_table) {
+        PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_name", part_name);
+        if (part_name.length() <= MAX_PART_NAME_LENGTH) {
+          MEMCPY(name_buf[i], part_name.ptr(), part_name.length());
+          name_len_buf[i] = part_name.length();
+          all_first_part_name_length_ += part_name.length();
+        } else {//treat too long name string as empty string
+          name_len_buf[i] = 0;
+        }
+        if (!is_template_table) {
           PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "sub_part_num", sub_part_num, int64_t);
           sub_part_num_[i] = sub_part_num;
         }
       } else if (PARTITION_LEVEL_TWO == part_level) {
-        PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "sub_part_id", part_array[i].part_id_, int64_t);
+        PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "sub_part_id", part_array[i].part_id_, int64_t);//sub_part_id
+        PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_name", part_name);
+        part_id_buf[i] = part_array[i].part_id_;
+        if (part_name.length() <= MAX_PART_NAME_LENGTH) {
+          MEMCPY(name_buf[i], part_name.ptr(), part_name.length());
+          name_len_buf[i] = part_name.length();
+          all_sub_part_name_length_ += part_name.length();
+        } else {//treat too long name string as empty string
+          name_len_buf[i] = 0;
+        }
       } else {
         ret = OB_INVALID_ARGUMENT;
       }
@@ -839,6 +1142,7 @@ int ObProxyPartMgr::build_list_part(const ObPartitionLevel part_level,
       } else {
         // deserialize ob rows array
         while (OB_SUCC(ret) && pos < tmp_str.length()) {
+          row.assign(obj_array, OB_USER_ROW_MAX_COLUMNS_COUNT);
           if (OB_FAIL(row.deserialize(tmp_str.ptr(), tmp_str.length(), pos))) {
             LOG_WARN("fail to deserialize ob row", K(tmp_str), K(ret));
           } else if (OB_FAIL(ob_write_row(allocator_, row, tmp_row))) {
@@ -858,7 +1162,7 @@ int ObProxyPartMgr::build_list_part(const ObPartitionLevel part_level,
 
   if (OB_SUCC(ret)) {
     if (OB_FAIL(desc_list->set_part_array(part_array, part_num))) {
-      LOG_WARN("failed to set_part_array, unexpected ", K(ret));
+      LOG_WARN("fail to set_part_array, unexpected ", K(ret));
     }
   }
 
@@ -866,25 +1170,45 @@ int ObProxyPartMgr::build_list_part(const ObPartitionLevel part_level,
   if (OB_SUCC(ret)) {
     desc_list->set_part_level(part_level);
     desc_list->set_part_func_type(part_func_type);
-    for (int k = 0; k < key_info.key_num_; ++k) {
-      if (static_cast<ObPartitionLevel>(key_info.part_keys_[k].level_) == part_level) {
-        desc_list->set_accuracy(key_info.part_keys_[k].accuracy_);
-        break;
+    for (int i = 0; i < part_col_num; i++) {
+      desc_list->get_accuracies().push_back(ObAccuracy());
+    }
+    // find all keys in this level 
+    for (int i = 0; i < key_info.key_num_; ++i) {
+      if (static_cast<ObPartitionLevel>(key_info.part_keys_[i].level_) == part_level) {
+        ObAccuracy accuracy(key_info.part_keys_[i].accuracy_.valid_, 
+                            key_info.part_keys_[i].accuracy_.length_,
+                            key_info.part_keys_[i].accuracy_.precision_,
+                            key_info.part_keys_[i].accuracy_.scale_);
+        desc_list->get_accuracies().at(key_info.part_keys_[i].idx_in_part_columns_) = accuracy;
       }
     }
     if (PARTITION_LEVEL_ONE == part_level) {
       first_part_desc_ = desc_list;
+      if (OB_FAIL(init_first_part_map())) {
+        LOG_DEBUG("fail to create first part name id map", K(ret));
+      } else if (OB_FAIL(build_part_name_id_map(name_buf, name_len_buf, part_id_buf, all_first_part_name_buf_, all_first_part_name_length_, part_num, first_part_name_id_map_))) {
+        LOG_DEBUG("fail to build first part name id map", K(ret));
+      }
     } else if (PARTITION_LEVEL_TWO == part_level) {
       sub_part_desc_ = desc_list;
+      if (OB_FAIL(init_sub_part_map())) {
+        LOG_DEBUG("fail to create temp sub part name id map", K(ret));
+      } else if (OB_FAIL(build_temp_sub_part_name_id_map(name_buf, name_len_buf, part_id_buf, part_num))) {
+        LOG_DEBUG("fail to build temp sub part name id map", K(ret));
+      }
     } else {
       ret = OB_INVALID_ARGUMENT;
       LOG_WARN("part level invalid", K(part_level), K(ret));
     }
   }
+
+  free_name_buf(name_buf, name_len_buf, part_id_buf);
   return ret;
 }
 
 int ObProxyPartMgr::build_sub_list_part_with_non_template(const ObPartitionFuncType part_func_type,
+                                                          const int64_t part_col_num,
                                                           const ObProxyPartKeyInfo &key_info,
                                                           ObResultSetFetcher &rs_fetcher,
                                                           const int64_t cluster_version)
@@ -893,23 +1217,28 @@ int ObProxyPartMgr::build_sub_list_part_with_non_template(const ObPartitionFuncT
   void *tmp_buf = NULL;
   ListPartition *part_array = NULL;
   common::ObPartDesc *sub_part_desc = NULL;
-
+  PART_NAME_BUF *name_buf = NULL;
+  int64_t *name_len_buf = NULL;
+  int64_t *part_id_buf = NULL;
+  ObString sub_part_name;
+  
   // alloc desc_range
   if (OB_ISNULL(tmp_buf = allocator_.alloc(sizeof(ObPartDescList) * first_part_num_))) {
     ret = OB_REACH_MEMORY_LIMIT;
     LOG_WARN("part mgr reach memory limit", K(ret));
   } else if (OB_ISNULL(sub_part_desc = new (tmp_buf) ObPartDescList[first_part_num_])) {
     ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("failed to do placement new", K(tmp_buf), K(ret));
+    LOG_WARN("fail to do placement new", K(tmp_buf), K(ret));
+  } else if (OB_FAIL(alloc_name_buf(name_buf, name_len_buf, part_id_buf, all_sub_part_num_))) {
+    LOG_WARN("fail to alloc name buf", K(ret));
   }
-
   // build desc_list
   ObString tmp_str;
+  int64_t index = 0;
   int64_t pos = 0;
   ObNewRow row;
   ObNewRow tmp_row;
   ObObj obj_array[OB_USER_ROW_MAX_COLUMNS_COUNT];
-  row.assign(obj_array, OB_USER_ROW_MAX_COLUMNS_COUNT);
   ObPartDescList *desc_list = NULL;
   for (int64_t i = 0; i < first_part_num_ && OB_SUCC(ret); ++i) {
     tmp_buf = NULL;
@@ -919,7 +1248,7 @@ int ObProxyPartMgr::build_sub_list_part_with_non_template(const ObPartitionFuncT
       LOG_WARN("part mgr reach memory limit", K(ret));
     } else if (OB_ISNULL(part_array = new (tmp_buf) ListPartition[sub_part_num_[i]])) {
       ret = OB_ERR_UNEXPECTED;
-      LOG_WARN("failed to do placement new", K(tmp_buf), "sub_part_index", i,
+      LOG_WARN("fail to do placement new", K(tmp_buf), "sub_part_index", i,
                "sub_part_num", sub_part_num_[i], K(ret));
     } else if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version) && OB_ISNULL(desc_list->tablet_id_array_ = (int64_t*)allocator_.alloc(sizeof(int64_t) * sub_part_num_[i]))) {
       ret = OB_REACH_MEMORY_LIMIT;
@@ -927,22 +1256,38 @@ int ObProxyPartMgr::build_sub_list_part_with_non_template(const ObPartitionFuncT
     }
 
     for (int64_t j = 0; j < sub_part_num_[i] && OB_SUCC(ret); ++j) {
-      if (OB_FAIL(rs_fetcher.next())) {
-        LOG_WARN("failed to get next rs_fetcher", K(ret));
+      if (OB_FAIL(rs_fetcher.next()) || index >= all_sub_part_num_) {
+        LOG_WARN("fail to get next rs_fetcher", K(ret));
       } else {
         PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "part_id", part_array[j].first_part_id_, int64_t);
         PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "sub_part_id", part_array[j].part_id_, int64_t);
         PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "high_bound_val_bin", tmp_str);
+
         if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
           PROXY_EXTRACT_INT_FIELD_MYSQL(rs_fetcher, "tablet_id", desc_list->tablet_id_array_[j], int64_t);
         }
 
+        PROXY_EXTRACT_VARCHAR_FIELD_MYSQL(rs_fetcher, "part_name", sub_part_name);
+        if (sub_part_name.length() <= MAX_PART_NAME_LENGTH) {
+          MEMCPY(name_buf[index], sub_part_name.ptr(), sub_part_name.length());
+          name_len_buf[index] = sub_part_name.length();
+          if (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)) {
+            part_id_buf[index] = desc_list->tablet_id_array_[j];
+          } else {
+            part_id_buf[index] = generate_phy_part_id(part_array[j].first_part_id_, part_array[j].part_id_);
+          }
+          all_sub_part_name_length_ += sub_part_name.length();
+        } else {//treat too long name string as empty string
+          name_len_buf[index] = 0;
+        }
+        ++index;
         pos = 0;
         if (OB_FAIL(ret)) {
           LOG_WARN("fail to fetch result", K(ret));
         } else {
           // deserialize ob rows array
           while (OB_SUCC(ret) && pos < tmp_str.length()) {
+            row.assign(obj_array, OB_USER_ROW_MAX_COLUMNS_COUNT);
             if (OB_FAIL(row.deserialize(tmp_str.ptr(), tmp_str.length(), pos))) {
               LOG_WARN("fail to deserialize ob row", K(tmp_str), K(ret));
             } else if (OB_FAIL(ob_write_row(allocator_, row, tmp_row))) {
@@ -963,22 +1308,35 @@ int ObProxyPartMgr::build_sub_list_part_with_non_template(const ObPartitionFuncT
     if (OB_SUCC(ret)) {
       desc_list->set_part_level(PARTITION_LEVEL_TWO);
       desc_list->set_part_func_type(part_func_type);
-      for (int k = 0; k < key_info.key_num_; ++k) {
-        if (static_cast<ObPartitionLevel>(key_info.part_keys_[k].level_) == PARTITION_LEVEL_TWO) {
-          desc_list->set_accuracy(key_info.part_keys_[k].accuracy_);
-          break;
+      for (int i = 0; i < part_col_num; i++) {
+        desc_list->get_accuracies().push_back(ObAccuracy());
+      }
+      // find all keys in this level 
+      for (int i = 0; i < key_info.key_num_; ++i) {
+        if (static_cast<ObPartitionLevel>(key_info.part_keys_[i].level_) == PARTITION_LEVEL_TWO) {
+          ObAccuracy accuracy(key_info.part_keys_[i].accuracy_.valid_, 
+                              key_info.part_keys_[i].accuracy_.length_,
+                              key_info.part_keys_[i].accuracy_.precision_,
+                              key_info.part_keys_[i].accuracy_.scale_);
+          desc_list->get_accuracies().at(key_info.part_keys_[i].idx_in_part_columns_) = accuracy;       
         }
       }
       if (OB_FAIL(desc_list->set_part_array(part_array, sub_part_num_[i]))) {
-        LOG_WARN("failed to set_part_array, unexpected ", K(ret));
+        LOG_WARN("fail to set_part_array, unexpected ", K(ret));
       }
     }
   } // end of for
 
   if (OB_SUCC(ret)) {
     sub_part_desc_ = sub_part_desc;
+    if (OB_FAIL(init_sub_part_map())) {
+      LOG_DEBUG("fail to create non temp sub part name id map", K(ret));
+    } else if (OB_FAIL(build_part_name_id_map(name_buf, name_len_buf, part_id_buf, all_sub_part_name_buf_, all_sub_part_name_length_, all_sub_part_num_, sub_part_name_id_map_))) {
+      LOG_DEBUG("fail to build non temp sub part name id map", K(ret));
+    }
   }
 
+  free_name_buf(name_buf, name_len_buf, part_id_buf);
   return ret;
 }
 
@@ -1057,6 +1415,112 @@ int ObProxyPartMgr::get_sub_part_num_by_first_part_id(ObProxyPartInfo &part_info
   return ret;
 }
 
+int ObProxyPartMgr::build_part_name_id_map(const PART_NAME_BUF * const name_buf, 
+                                           const int64_t * const name_len_buf, 
+                                           const int64_t * const part_id_buf, 
+                                           char * target_part_name_buf,
+                                           const int64_t total_part_name_len,
+                                           const int64_t part_num, 
+                                           PartNameIdMap& part_name_id_map)
+{
+  int ret = OB_SUCCESS;
+  if (OB_ISNULL(name_buf) || OB_ISNULL(name_len_buf) || OB_ISNULL(part_id_buf)) {
+    ret = OB_INVALID_ARGUMENT;
+    LOG_WARN("fail to get part name buf", K(ret));
+  } else if (OB_NOT_NULL(target_part_name_buf)) {
+    ret = OB_INVALID_ARGUMENT;
+    LOG_WARN("part name buf is alloc twice", K(ret));
+  } else if (OB_ISNULL(target_part_name_buf = (char *)allocator_.alloc(total_part_name_len))) {
+    ret = OB_REACH_MEMORY_LIMIT;
+    LOG_WARN("part mgr reach memory limit when alloc all first part name buf", K(ret));
+  } else {
+    ObString part_name;
+    int64_t pos = 0;
+    for (int64_t i = 0; OB_SUCC(ret) && i < part_num; ++i) {
+      if (OB_LIKELY( 0 != name_len_buf[i])) {
+        part_name.assign_ptr(target_part_name_buf + pos, static_cast<ObString::obstr_size_t>(name_len_buf[i]));
+        MEMCPY(target_part_name_buf + pos, name_buf[i], name_len_buf[i]);
+        string_to_upper_case(part_name.ptr(), part_name.length());
+        part_name_id_map.set_refactored(part_name, part_id_buf[i]);
+        pos += name_len_buf[i];
+      }
+    }
+  }
+  return ret;
+}
+
+int ObProxyPartMgr::build_temp_sub_part_name_id_map(const PART_NAME_BUF * const name_buf, 
+                                                    const int64_t * const name_len_buf, 
+                                                    const int64_t * const part_id_buf, 
+                                                    const int64_t part_num)
+{
+  int ret = OB_SUCCESS;
+  all_sub_part_name_length_ = (all_first_part_name_length_ * part_num) //total length of first-part-name
+                                    + (all_sub_part_name_length_ * first_part_num_) //total length of sub-part-name
+                                    + (part_num * first_part_num_); //total length of 's' 
+  if (OB_ISNULL(name_buf) || OB_ISNULL(name_len_buf) || OB_ISNULL(part_id_buf)) {
+    ret = OB_INVALID_ARGUMENT;
+    LOG_WARN("fail to get part name buf", K(ret));
+  } else if (OB_ISNULL(all_sub_part_name_buf_ = (char *)allocator_.alloc(sizeof(char) * all_sub_part_name_length_))) {
+    ret = OB_REACH_MEMORY_LIMIT;
+    LOG_WARN("part mgr reach memory limit when alloc all first part name buf", K(ret));
+  } else {
+    ObString part_name;
+    int64_t pos = 0;
+    int64_t tmp_len = 0;
+    PartNameIdMap::const_iterator iter = first_part_name_id_map_.begin();
+    PartNameIdMap::const_iterator end = first_part_name_id_map_.end();
+    for (; OB_SUCC(ret) && iter !=end; iter++) {
+      for (int64_t i = 0; OB_SUCC(ret) && i < part_num; ++i) {
+        if (OB_LIKELY(0 != name_len_buf[i])) {
+            tmp_len = iter->first.length() + 1 + name_len_buf[i];//first part name + 's' + sub part name
+          if (OB_LIKELY(tmp_len <= MAX_PART_NAME_LENGTH)) {
+            part_name.assign_ptr(all_sub_part_name_buf_ + pos, static_cast<ObString::obstr_size_t>(tmp_len));
+            MEMCPY(all_sub_part_name_buf_ + pos, iter->first.ptr(), iter->first.length());
+            pos += iter->first.length();
+            all_sub_part_name_buf_[pos++] = 'S';
+            MEMCPY(all_sub_part_name_buf_ + pos, name_buf[i], name_len_buf[i]);
+            pos += name_len_buf[i];
+            string_to_upper_case(part_name.ptr(), part_name.length());
+            sub_part_name_id_map_.set_refactored(part_name, generate_phy_part_id(iter->second, part_id_buf[i]));
+          }
+        }  
+      }
+    }
+  }
+  return ret;
+}
+
+int ObProxyPartMgr::alloc_name_buf(PART_NAME_BUF *&name_buf, int64_t *&name_len_buf, int64_t *&part_id_buf, const int64_t part_num)
+{
+  int ret = OB_SUCCESS;
+  if (OB_ISNULL(name_buf = (PART_NAME_BUF *)allocator_.alloc(sizeof(PART_NAME_BUF) * part_num))) {
+    ret = OB_REACH_MEMORY_LIMIT;
+    LOG_WARN("part mgr reach memory limit when alloc name buf", K(ret));
+  } else if (OB_ISNULL(name_len_buf = (int64_t *)allocator_.alloc(sizeof(int64_t) * part_num))) {
+    ret = OB_REACH_MEMORY_LIMIT;
+    LOG_WARN("part mgr reach memory limit when alloc name len buf", K(ret));
+  } else if (OB_ISNULL(part_id_buf = (int64_t *)allocator_.alloc(sizeof(int64_t) * part_num))) {
+    ret = OB_REACH_MEMORY_LIMIT;
+    LOG_WARN("part mgr reach memory limit when alloc part id buf", K(ret));
+  }
+
+  return ret;
+}
+
+void ObProxyPartMgr::free_name_buf(PART_NAME_BUF *name_buf, int64_t *name_len_buf, int64_t *part_id_buf)
+{
+  if (OB_NOT_NULL(part_id_buf)) {
+    allocator_.free(part_id_buf);
+  }
+  if (OB_NOT_NULL(name_len_buf)) {
+    allocator_.free(name_len_buf);
+  }
+  if (OB_NOT_NULL(name_buf)) {
+    allocator_.free(name_buf);
+  }
+}
+
 int64_t ObProxyPartMgr::to_string(char *buf, const int64_t buf_len) const
 {
   int64_t pos = 0;
diff --git a/src/obproxy/proxy/route/obproxy_part_mgr.h b/src/obproxy/proxy/route/obproxy_part_mgr.h
index ff82ae00..f1c8e341 100644
--- a/src/obproxy/proxy/route/obproxy_part_mgr.h
+++ b/src/obproxy/proxy/route/obproxy_part_mgr.h
@@ -29,67 +29,28 @@ namespace obproxy
 class ObResultSetFetcher;
 namespace proxy
 {
-
-class ObPartNameIdPair
-{
-public:
-  ObPartNameIdPair() : part_id_(-1), tablet_id_(-1)
-  {
-    part_name_buf_[0] = '\0';
-  }
-  ~ObPartNameIdPair() {}
-
-  int set_part_name(const common::ObString &part_name);
-  void set_part_id(int64_t part_id) { part_id_ = part_id; }
-  void set_tablet_id(const int64_t tablet_id) { tablet_id_ = tablet_id; }
-
-  const common::ObString get_part_name() const { return part_name_; }
-  int64_t get_part_id() const { return part_id_; }
-  int64_t get_tablet_id() const { return tablet_id_; }
-
-  int assign(const ObPartNameIdPair &other);
-  int64_t to_string(char *buf, const int64_t buf_len) const;
-public:
-  common::ObString part_name_;
-  int64_t part_id_;
-  int64_t tablet_id_;
-
-private:
-  char part_name_buf_[common::OB_MAX_PARTITION_NAME_LENGTH];
-  DISALLOW_COPY_AND_ASSIGN(ObPartNameIdPair);
-};
-
-inline int ObPartNameIdPair::set_part_name(const common::ObString &part_name)
-{
-  int ret = common::OB_SUCCESS;
-  if (part_name.length() > common::OB_MAX_PARTITION_NAME_LENGTH) {
-    ret = common::OB_INVALID_ARGUMENT;
-    PROXY_LOG(WARN, "invalid part name", K(part_name), K(ret));
-  } else {
-    MEMCPY(part_name_buf_, part_name.ptr(), part_name.length());
-    part_name_.assign_ptr(part_name_buf_, part_name.length());
-  }
-  return ret;
-}
-
-inline int ObPartNameIdPair::assign(const ObPartNameIdPair &other)
-{
-  int ret = common::OB_SUCCESS;
-  set_part_id(other.get_part_id());
-  set_tablet_id(other.get_tablet_id());
-  ret = set_part_name(other.get_part_name());
-  return ret;
-}
+class ObProxyExprCalculator;
+class ObServerRoute;
 
 class ObProxyPartMgr
 {
+private:
+  const static int64_t MAX_PART_NAME_LENGTH = common::OB_MAX_PARTITION_NAME_LENGTH;//64
+  typedef char PART_NAME_BUF[MAX_PART_NAME_LENGTH];
+  typedef hash::ObHashMap<ObString,int64_t,hash::NoPthreadDefendMode> PartNameIdMap;
 public:
   explicit ObProxyPartMgr(common::ObIAllocator &allocator);
   ~ObProxyPartMgr() { }
-
+  void destroy();
+  
   int get_part_with_part_name(const common::ObString &part_name,
-                              int64_t &part_id_);
-  int get_first_part_id_by_idx(const int64_t idx, int64_t &part_id, int64_t &tablet_id);
+                              int64_t &part_id,
+                              ObProxyPartInfo &part_info,
+                              ObServerRoute &route,
+                              ObProxyExprCalculator &expr_calculator);
+  int get_first_part_id_by_random(const int64_t rand_num, 
+                                  int64_t &first_part_id,
+                                  int64_t &tablet_id);
   int get_first_part(common::ObNewRange &range,
                      common::ObIAllocator &allocator,
                      common::ObIArray<int64_t> &part_ids,
@@ -112,6 +73,7 @@ class ObProxyPartMgr
                       const share::schema::ObPartitionFuncType part_func_type,
                       const int64_t part_num,
                       const int64_t part_space,
+                      const int64_t part_col_num,
                       const bool is_template_table,
                       const ObProxyPartKeyInfo &key_info,
                       ObResultSetFetcher *rs_fetcher,
@@ -119,6 +81,7 @@ class ObProxyPartMgr
   int build_sub_hash_part_with_non_template(const bool is_oracle_mode,
                                             const share::schema::ObPartitionFuncType part_func_type,
                                             const int64_t part_space,
+                                            const int64_t part_col_num,
                                             const ObProxyPartKeyInfo &key_info,
                                             ObResultSetFetcher &rs_fetcher,
                                             const int64_t cluster_version);
@@ -126,34 +89,40 @@ class ObProxyPartMgr
                      const share::schema::ObPartitionFuncType part_func_type,
                      const int64_t part_num,
                      const int64_t part_space,
+                     const int64_t part_col_num,
                      const bool is_template_table,
                      const ObProxyPartKeyInfo &key_info,
                      ObResultSetFetcher *rs_fetcher,
                      const int64_t cluster_version);
   int build_sub_key_part_with_non_template(const share::schema::ObPartitionFuncType part_func_type,
                                            const int64_t part_space,
+                                           const int64_t part_col_num,
                                            const ObProxyPartKeyInfo &key_info,
                                            ObResultSetFetcher &rs_fetcher,
                                            const int64_t cluster_version);
   int build_range_part(const share::schema::ObPartitionLevel part_level,
                        const share::schema::ObPartitionFuncType part_func_type,
                        const int64_t part_num,
+                       const int64_t part_col_num,
                        const bool is_template_table,
                        const ObProxyPartKeyInfo &key_info,
                        ObResultSetFetcher &rs_fetcher,
                        const int64_t cluster_version);
   int build_sub_range_part_with_non_template(const share::schema::ObPartitionFuncType part_func_type,
+                                             const int64_t part_col_num,
                                              const ObProxyPartKeyInfo &key_info,
                                              ObResultSetFetcher &rs_fetcher,
                                              const int64_t cluster_verison);
   int build_list_part(const share::schema::ObPartitionLevel part_level,
                       const share::schema::ObPartitionFuncType part_func_type,
                       const int64_t part_num,
+                      const int64_t part_col_num,
                       const bool is_template_table,
                       const ObProxyPartKeyInfo &key_info,
                       ObResultSetFetcher &rs_fetcher,
                       const int64_t cluster_version);
   int build_sub_list_part_with_non_template(const share::schema::ObPartitionFuncType part_func_type,
+                                            const int64_t part_col_num,
                                             const ObProxyPartKeyInfo &key_info,
                                             ObResultSetFetcher &rs_fetcher,
                                             const int64_t cluster_version);
@@ -169,21 +138,57 @@ class ObProxyPartMgr
                                          ObPartDesc *&sub_part_desc_ptr,
                                          const int64_t cluster_version);
 
+  void set_all_sub_part_num(int64_t all_sub_part_num);
   common::ObObjType get_first_part_type() const;
   common::ObObjType get_sub_part_type() const;
   void set_cluster_version(const int64_t cluster_version) { cluster_version_ = cluster_version; }
 
   int64_t to_string(char *buf, const int64_t buf_len) const;
+private:
+  int init_first_part_map();
+  int init_sub_part_map();
+  int alloc_name_buf(PART_NAME_BUF *&name_buf, int64_t *&name_len_buf, int64_t *&part_id_buf, const int64_t part_num);
+  void free_name_buf(PART_NAME_BUF *name_buf, int64_t *name_len_buf, int64_t *part_id_buf);
+  int build_part_name_id_map(const PART_NAME_BUF * const name_buf, 
+                             const int64_t * const name_len_buf, 
+                             const int64_t * const part_id_buf, 
+                             char * target_part_name_buf,
+                             const int64_t total_part_name_len,
+                             const int64_t part_num, 
+                             PartNameIdMap& part_name_id_map);
+  int build_temp_sub_part_name_id_map(const PART_NAME_BUF * const name_buf, 
+                                      const int64_t * const name_len_buf, 
+                                      const int64_t * const part_id_buf, 
+                                      const int64_t part_num);
 private:
   common::ObPartDesc *first_part_desc_;
   common::ObPartDesc *sub_part_desc_; // may be we need a array here
   int64_t first_part_num_;
   int64_t *sub_part_num_;
-  ObPartNameIdPair* part_pair_array_; // first part name id pair array
+  int64_t all_sub_part_num_;
+  char * all_first_part_name_buf_; // first part name cancatenation string: "p1|p2|···|pn"
+  char * all_sub_part_name_buf_;// sub part name cancatenation string: "p1sp1|p1sp2|···|pnspn"
+  int64_t all_first_part_name_length_;
+  int64_t all_sub_part_name_length_;
+  PartNameIdMap  first_part_name_id_map_; // map K(first part name) to V(first part id)
+  PartNameIdMap  sub_part_name_id_map_; // map K(sub part name) to V(physical part id)
   common::ObIAllocator &allocator_;
   int64_t cluster_version_;
 };
 
+inline void ObProxyPartMgr::set_all_sub_part_num(int64_t all_sub_part_num)
+{
+  all_sub_part_num_ = all_sub_part_num;
+}
+inline int ObProxyPartMgr::init_first_part_map()
+{
+  return first_part_name_id_map_.create(first_part_num_ * 1, ObModIds::OB_HASH_BUCKET, ObModIds::OB_HASH_NODE);//default load factor = 1.0
+}
+inline int ObProxyPartMgr::init_sub_part_map()
+{
+  return sub_part_name_id_map_.create(all_sub_part_num_ * 1, ObModIds::OB_HASH_BUCKET, ObModIds::OB_HASH_NODE);//default load factor = 1.0
+}
+
 } // namespace proxy
 } // namespace obproxy
 } // namespace oceanbase
diff --git a/src/obproxy/proxy/shard/obproxy_shard_utils.cpp b/src/obproxy/proxy/shard/obproxy_shard_utils.cpp
index 0e7501dc..a6d983cf 100644
--- a/src/obproxy/proxy/shard/obproxy_shard_utils.cpp
+++ b/src/obproxy/proxy/shard/obproxy_shard_utils.cpp
@@ -94,6 +94,8 @@ int ObProxyShardUtils::check_logic_database(ObMysqlTransact::ObTransState &trans
 
   if (OB_SUCC(ret)) {
     session_info.set_group_id(OBPROXY_MAX_DBMESH_ID);
+    session_info.set_table_id(OBPROXY_MAX_DBMESH_ID);
+    session_info.set_es_id(OBPROXY_MAX_DBMESH_ID);
     session_info.set_logic_database_name(db_name);
     LOG_DEBUG("check logic database success", K(db_name));
   }
@@ -128,6 +130,7 @@ int ObProxyShardUtils::change_connector(ObDbConfigLogicDb &logic_db_info,
       LOG_WARN("not support distributed transaction", K(trans_state.current_.state_),
                K(trans_state.is_auth_request_),
                K(trans_state.is_hold_start_trans_),
+               K(trans_state.is_hold_xa_start_),
                KPC(prev_shard_conn),
                KPC(shard_conn), K(ret));
     } else {
@@ -231,27 +234,26 @@ void ObProxyShardUtils::replace_oracle_table(ObSqlString &new_sql, const ObStrin
   hava_quoto = false;
 }
 
-int ObProxyShardUtils::do_rewrite_shard_select_request(const ObString &sql,
-                                                       ObSqlParseResult &parse_result,
-                                                       bool is_oracle_mode,
-                                                       const ObHashMap<ObString, ObString> &table_name_map,
-                                                       const ObString &real_database_name,
-                                                       bool is_single_shard_db_table,
-                                                       ObSqlString &new_sql)
+int ObProxyShardUtils::rewrite_shard_dml_request(const ObString &sql,
+                                                 ObSqlString &new_sql,
+                                                 ObSqlParseResult &parse_result,
+                                                 bool is_oracle_mode,
+                                                 const ObHashMap<ObString, ObString> &table_name_map,
+                                                 const ObString &real_database_name,
+                                                 bool is_single_shard_db_table)
 {
   int ret = OB_SUCCESS;
 
-  const uint32_t PARSE_EXTRA_CHAR_NUM = 2;
   const char *sql_ptr = sql.ptr();
   int64_t sql_len = sql.length();
   int64_t copy_pos = 0;
 
-  ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(parse_result.get_proxy_stmt());
-  if (OB_ISNULL(select_stmt)) {
+  ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(parse_result.get_proxy_stmt());
+  if (OB_ISNULL(dml_stmt)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("unexpected null select stmt", K(ret));
   } else {
-    ObProxySelectStmt::TablePosArray &table_pos_array = select_stmt->get_table_pos_array();
+    ObProxyDMLStmt::TablePosArray &table_pos_array = dml_stmt->get_table_pos_array();
     std::sort(table_pos_array.begin(), table_pos_array.end());
 
     for (int64_t i = 0; OB_SUCC(ret) && i < table_pos_array.count(); i++) {
@@ -284,48 +286,12 @@ int ObProxyShardUtils::do_rewrite_shard_select_request(const ObString &sql,
 
 
   if (OB_SUCC(ret)) {
-    new_sql.append(sql_ptr + copy_pos, sql_len - copy_pos - PARSE_EXTRA_CHAR_NUM);
+    new_sql.append(sql_ptr + copy_pos, sql_len - copy_pos);
   }
 
   return ret;
 }
 
-int ObProxyShardUtils::rewrite_shard_select_request(ObClientSessionInfo &session_info,
-                                                    ObProxyMysqlRequest &client_request,
-                                                    ObIOBufferReader &client_buffer_reader,
-                                                    const ObHashMap<ObString, ObString> &table_name_map,
-                                                    const ObString &real_database_name,
-                                                    bool is_single_shard_db_table)
-{
-  int ret = OB_SUCCESS;
-
-  ObSqlParseResult &parse_result = client_request.get_parse_result();
-  ObSqlString new_sql;
-
-  if (OB_FAIL(do_rewrite_shard_select_request(client_request.get_parse_sql(), parse_result,
-                                              session_info.is_oracle_mode(), table_name_map,
-                                              real_database_name, is_single_shard_db_table,
-                                              new_sql))) {
-  } else {
-    // 4. push reader forward by consuming old buffer and write new sql into buffer
-    if (OB_FAIL(client_buffer_reader.consume_all())) {
-      LOG_WARN("fail to consume all", K(ret));
-    } else {
-      ObMIOBuffer *writer = client_buffer_reader.mbuf_;
-      if (OB_ISNULL(writer)) {
-        ret = OB_ERR_UNEXPECTED;
-        LOG_WARN("unexpected null values ", K(writer), K(ret));
-        // no need compress here, if server session support compress, it will compress later
-      } else if (OB_FAIL(ObMysqlRequestBuilder::build_mysql_request(*writer, obmysql::OB_MYSQL_COM_QUERY, new_sql.string(), false, false))) {
-        LOG_WARN("fail to build_mysql_request", K(new_sql), K(ret));
-      } else if (OB_FAIL(ObProxySessionInfoHandler::rewrite_query_req_by_sharding(session_info, client_request, client_buffer_reader))) {
-        LOG_WARN("fail to rewrite_query_req_by_sharding", K(ret));
-      }
-    }
-  }
-
-  return ret;
-}
 
 int ObProxyShardUtils::rewrite_shard_request_db(const char *sql_ptr, int64_t database_pos,
                                                 int64_t table_pos, uint64_t database_len,
@@ -373,6 +339,35 @@ int ObProxyShardUtils::rewrite_shard_request_db(const char *sql_ptr, int64_t dat
   return ret;
 }
 
+int ObProxyShardUtils::rewrite_shard_request_table_no_db(const char *sql_ptr,
+                                                         int64_t table_pos, uint64_t table_len,
+                                                         const ObString &real_table_name,
+                                                         bool is_oracle_mode, bool is_single_shard_db_table,
+                                                         ObSqlString &new_sql, int64_t &copy_pos)
+{
+  int ret = OB_SUCCESS;
+
+  bool table_have_quoto = false;
+
+  if (*(sql_ptr + table_pos - 1) == '`' || *(sql_ptr + table_pos - 1) == '"') {
+    table_have_quoto = true;
+    table_pos -= 1;
+    table_len += 2;
+  }
+
+  new_sql.append(sql_ptr + copy_pos, table_pos - copy_pos);
+  if (is_oracle_mode) {
+    replace_oracle_table(new_sql, real_table_name, table_have_quoto, is_single_shard_db_table, false);
+  } else {
+    new_sql.append(real_table_name);
+  }
+
+  copy_pos = table_pos + table_len;
+
+  return ret;
+}
+
+
 int ObProxyShardUtils::rewrite_shard_request_table(const char *sql_ptr,
                                                    int64_t database_pos, uint64_t database_len,
                                                    int64_t table_pos, uint64_t table_len,
@@ -444,24 +439,22 @@ int ObProxyShardUtils::rewrite_shard_request_hint_table(const char *sql_ptr, int
 //     if no quoto, not add quoto
 //  if sharding mode, table from config, both add quoto
 int ObProxyShardUtils::rewrite_shard_request(ObClientSessionInfo &session_info,
-                                             ObProxyMysqlRequest &client_request,
-                                             ObIOBufferReader &client_buffer_reader,
+                                             ObSqlParseResult &parse_result,
                                              const ObString &table_name, const ObString &database_name,
                                              const ObString &real_table_name, const ObString &real_database_name,
-                                             bool is_single_shard_db_table)
+                                             bool is_single_shard_db_table,
+                                             const ObString& sql,
+                                             ObSqlString& new_sql)
 {
   int ret = OB_SUCCESS;
 
-  const uint32_t PARSE_EXTRA_CHAR_NUM = 2;
   uint64_t table_len = table_name.length();
   uint64_t database_len = database_name.length();
   uint64_t index_table_len = table_name.length();
-  int64_t table_pos = client_request.get_parse_result().get_dbmesh_route_info().tb_pos_;
-  int64_t database_pos = client_request.get_parse_result().get_dbmesh_route_info().db_pos_;
-  int64_t index_table_pos = client_request.get_parse_result().get_dbmesh_route_info().index_tb_pos_;
+  int64_t table_pos = parse_result.get_dbmesh_route_info().tb_pos_;
+  int64_t database_pos = parse_result.get_dbmesh_route_info().db_pos_;
+  int64_t index_table_pos = parse_result.get_dbmesh_route_info().index_tb_pos_;
 
-  ObString sql = client_request.get_parse_sql();
-  common::ObSqlString new_sql;
   const char *sql_ptr = sql.ptr();
   int64_t sql_len = sql.length();
 
@@ -493,23 +486,8 @@ int ObProxyShardUtils::rewrite_shard_request(ObClientSessionInfo &session_info,
   }
 
   if (OB_SUCC(ret)) {
-    new_sql.append(sql_ptr + copy_pos, sql_len - copy_pos - PARSE_EXTRA_CHAR_NUM);
-
-    // 4. push reader forward by consuming old buffer and write new sql into buffer
-    if (OB_FAIL(client_buffer_reader.consume_all())) {
-      LOG_WARN("fail to consume all", K(ret));
-    } else {
-      ObMIOBuffer *writer = client_buffer_reader.mbuf_;
-      if (OB_ISNULL(writer)) {
-        ret = OB_ERR_UNEXPECTED;
-        LOG_WARN("unexpected null values ", K(writer), K(ret));
-        // no need compress here, if server session support compress, it will compress later
-      } else if (OB_FAIL(ObMysqlRequestBuilder::build_mysql_request(*writer, obmysql::OB_MYSQL_COM_QUERY, new_sql.string(), false, false))) {
-        LOG_WARN("fail to build_mysql_request", K(new_sql), K(ret));
-      } else if (OB_FAIL(ObProxySessionInfoHandler::rewrite_query_req_by_sharding(session_info, client_request, client_buffer_reader))) {
-        LOG_WARN("fail to rewrite_query_req_by_sharding", K(ret));
-      }
-    }
+    new_sql.append(sql_ptr + copy_pos, sql_len - copy_pos);
+    LOG_DEBUG("succ to rewrite sql", K(sql), K(new_sql));
   }
 
   return ret;
@@ -729,25 +707,21 @@ int ObProxyShardUtils::testload_check_and_rewrite_testload_hint_index(common::Ob
  * Args:
  *   @param	session_info	: client session info
  *   @param	client_request	: client request
- *   @param	client_buffer_reader	: buffer to rewrite request 
  *   @param	is_single_shard_db_table: 
  *   @param	real_database_name	: real database name in Server
  *   @param	logic_db_info		: config info for database
  * */
-int ObProxyShardUtils::testload_check_and_rewrite_testload_request(ObClientSessionInfo &session_info,
-                                    ObProxyMysqlRequest &client_request,
-                                    ObIOBufferReader &client_buffer_reader,
+int ObProxyShardUtils::testload_check_and_rewrite_testload_request(ObSqlParseResult &parse_result,
                                     bool is_single_shard_db_table,
                                     const ObString &hint_table,
                                     const ObString &real_database_name,
-                                    ObDbConfigLogicDb &logic_db_info)
+                                    ObDbConfigLogicDb &logic_db_info,
+                                    const ObString& sql,
+                                    common::ObSqlString& new_sql)
 {
   int ret = OB_SUCCESS; 
   UNUSED(is_single_shard_db_table);
-  ObSqlParseResult &parse_result = client_request.get_parse_result();
-  ObString sql = client_request.get_sql();
 
-  common::ObSqlString new_sql; //init by default
   const char *sql_ptr = sql.ptr();
   int64_t sql_len = sql.length();
   ObArenaAllocator allocator;
@@ -878,30 +852,13 @@ int ObProxyShardUtils::testload_check_and_rewrite_testload_request(ObClientSessi
     }
   }
   LOG_DEBUG("ObProxyShardUtils::check_and_rewrite_testload_request all", K(ret), K(new_sql));
-  //rewrite sql base on new_sql
-  if (OB_SUCC(ret)) {
-    if (OB_FAIL(client_buffer_reader.consume_all())) {
-      LOG_WARN("fail to consume all", K(ret));
-    } else {
-      ObMIOBuffer *writer = client_buffer_reader.mbuf_;
-      if (OB_ISNULL(writer)) {
-        ret = OB_ERR_UNEXPECTED;
-        LOG_WARN("unexpected null values ", K(writer), K(ret));
-        // no need compress here, if server session support compress, it will compress later
-      } else if (OB_FAIL(ObMysqlRequestBuilder::build_mysql_request(*writer, obmysql::OB_MYSQL_COM_QUERY, new_sql.string(), false, false))) {
-        LOG_WARN("fail to build_mysql_request", K(new_sql), K(ret));
-      } else if (OB_FAIL(ObProxySessionInfoHandler::rewrite_query_req_by_sharding(session_info, client_request, client_buffer_reader))) {
-        LOG_WARN("fail to rewrite_query_req_by_sharding", K(ret));
-      }
-    } 
-  }
-//*/
+
   return ret;
 }
 
-bool ObProxyShardUtils::is_special_db(ObMysqlTransact::ObTransState &s)
+bool ObProxyShardUtils::is_special_db(obutils::ObSqlParseResult& parse_result)
 {
-  const ObString &database_name = s.trans_info_.client_request_.get_parse_result().get_origin_database_name();
+  const ObString &database_name = parse_result.get_origin_database_name();
   if (!database_name.empty() && 0 == database_name.case_compare("information_schema")) {
     return true;
   }
@@ -984,19 +941,73 @@ int ObProxyShardUtils::check_shard_request(ObMysqlClientSession &client_session,
   return ret;
 }
 
-int ObProxyShardUtils::get_shard_hint(ObDbConfigLogicDb &logic_db_info,
+int ObProxyShardUtils::get_shard_hint(const ObString &table_name,
+                                      ObClientSessionInfo &session_info,
+                                      ObDbConfigLogicDb &logic_db_info,
                                       ObSqlParseResult &parse_result,
                                       int64_t &group_index, int64_t &tb_index,
-                                      int64_t &es_index, ObString &table_name,
+                                      int64_t &es_index, ObString &hint_table_name,
                                       ObTestLoadType &testload_type)
 {
   int ret = OB_SUCCESS;
+
+  bool is_sticky_session = false;
+
+  if (OB_FAIL(get_shard_hint(logic_db_info, parse_result,
+                             group_index, tb_index, es_index,
+                             hint_table_name, testload_type,
+                             is_sticky_session))) {
+    LOG_WARN("fail to get shard hint", K(ret));
+  } else if (is_sticky_session) {
+    group_index = session_info.get_group_id();
+    tb_index = session_info.get_table_id();
+    es_index = session_info.get_es_id();
+
+    if (group_index == OBPROXY_MAX_DBMESH_ID) {
+      group_index = 0;
+    }
+
+    if (tb_index == OBPROXY_MAX_DBMESH_ID) {
+      tb_index = 0;
+    }
+
+    if (es_index == OBPROXY_MAX_DBMESH_ID) {
+      es_index = 0;
+    }
+
+    if (tb_index == 0 && group_index > 0) {
+      tb_index = group_index;
+    }
+  }
+
+  if (OB_SUCC(ret) && !logic_db_info.is_single_shard_db_table()) {
+    ObShardRule *logic_tb_info = NULL;
+    if (OB_FAIL(logic_db_info.get_shard_rule(logic_tb_info, table_name))) {
+      LOG_WARN("fail to get shard rule", K(table_name), K(ret));
+    } else if (group_index != OBPROXY_MAX_DBMESH_ID && group_index >= logic_tb_info->db_size_) {
+      ret = OB_NOT_SUPPORTED;
+      LOG_WARN("sql with group hint and greater than db size",
+               "db_size", logic_tb_info->db_size_, K(group_index), K(ret));
+    }
+  }
+
+  return ret;
+}
+
+int ObProxyShardUtils::get_shard_hint(ObDbConfigLogicDb &logic_db_info,
+                                      ObSqlParseResult &parse_result,
+                                      int64_t &group_index, int64_t &tb_index,
+                                      int64_t &es_index, ObString &hint_table_name,
+                                      ObTestLoadType &testload_type,
+                                      bool &is_sticky_session)
+{
+  int ret = OB_SUCCESS;
   DbMeshRouteInfo &odp_route_info = parse_result.get_dbmesh_route_info();
   DbpRouteInfo &dbp_route_info = parse_result.get_dbp_route_info();
   if (odp_route_info.is_valid()) {
     group_index = parse_result.get_dbmesh_route_info().group_idx_;
-    table_name = parse_result.get_dbmesh_route_info().table_name_;
-    if (table_name.empty()) {
+    hint_table_name = parse_result.get_dbmesh_route_info().table_name_;
+    if (hint_table_name.empty()) {
       tb_index =  parse_result.get_dbmesh_route_info().tb_idx_;
     }
     es_index = parse_result.get_dbmesh_route_info().es_idx_;
@@ -1011,7 +1022,9 @@ int ObProxyShardUtils::get_shard_hint(ObDbConfigLogicDb &logic_db_info,
   } else if (dbp_route_info.is_valid()) {
     if (parse_result.get_dbp_route_info().is_group_info_valid()) {
       group_index = dbp_route_info.group_idx_;
-      table_name = dbp_route_info.table_name_;
+      hint_table_name = dbp_route_info.table_name_;
+    } else if (parse_result.get_dbp_route_info().sticky_session_) {
+      is_sticky_session = true;
     }
   }
   return ret;
@@ -1031,6 +1044,172 @@ bool ObProxyShardUtils::is_read_stmt(ObClientSessionInfo &session_info, ObMysqlT
               || parse_result.has_explain()));
 }
 
+bool ObProxyShardUtils::is_unsupport_type_in_multi_stmt(ObSqlParseResult& parse_result)
+{
+  return parse_result.is_shard_special_cmd()
+         || ObProxyShardUtils::is_special_db(parse_result)
+         || parse_result.is_ddl_stmt()
+         || parse_result.is_multi_stmt()
+         || parse_result.is_show_tables_stmt()
+         || parse_result.is_show_full_tables_stmt()
+         || parse_result.is_show_table_status_stmt();
+}
+
+int ObProxyShardUtils::handle_information_schema_request(ObMysqlClientSession &client_session,
+                                                         ObMysqlTransact::ObTransState &trans_state,
+                                                         ObIOBufferReader &client_buffer_reader)
+{
+  int ret = OB_SUCCESS;
+
+  ObProxyMysqlRequest &client_request = trans_state.trans_info_.client_request_;
+  ObSqlParseResult &parse_result = client_request.get_parse_result();
+  SqlFieldResult& sql_result = parse_result.get_sql_filed_result();
+  ObProxySqlParser sql_parser;
+  ObString sql = client_request.get_parse_sql();
+  ObProxyDMLStmt *dml_stmt = NULL;
+  if (OB_FAIL(sql_parser.parse_sql_by_obparser(sql, NORMAL_PARSE_MODE, parse_result, true))) {
+    LOG_WARN("parse_sql_by_obparser failed", K(ret), K(sql));
+  } else if (OB_ISNULL(dml_stmt = dynamic_cast<ObProxyDMLStmt*>(parse_result.get_proxy_stmt()))) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("dml stmt is null, unexpected", K(ret));
+  } else {
+    ObClientSessionInfo &cs_info = client_session.get_session_info();
+    ObDbConfigLogicDb *logic_db_info = NULL;
+    ObShardConnector *shard_conn = NULL;
+    bool is_rewrite_sql = false;
+    bool is_single_shard_db_table = false;
+
+    common::ObSqlString new_sql;
+    const char *sql_ptr = sql.ptr();
+    int64_t sql_len = sql.length();
+    int64_t copy_pos = 0;
+
+    ObString last_database_name;
+    char real_database_name[OB_MAX_DATABASE_NAME_LENGTH];
+    char real_table_name[OB_MAX_TABLE_NAME_LENGTH];
+
+    ObProxyDMLStmt::DbTablePosArray &db_table_pos_array = dml_stmt->get_db_table_pos_array();
+    std::sort(db_table_pos_array.begin(), db_table_pos_array.end());
+
+    for (int64_t i = 0; OB_SUCC(ret) && i < db_table_pos_array.count(); i++) {
+      ObProxyDbTablePos &db_table_pos = db_table_pos_array.at(i);
+      if (SHARDING_POS_DB == db_table_pos.get_type()) {
+        const ObString &database_name = db_table_pos.get_name();
+
+        if (last_database_name.empty()) {
+          last_database_name = database_name;
+        } else if (0 != last_database_name.case_compare(database_name)) {
+          ret = OB_NOT_SUPPORTED;
+          LOG_WARN("do not support two schema", K(database_name), K(last_database_name), K(ret));
+        }
+
+        if (OB_SUCC(ret) && NULL == shard_conn) {
+          ObShardConnector *prev_shard_conn = cs_info.get_shard_connector();
+          ObString logic_tenant_name;
+          ObDbConfigCache &dbconfig_cache = get_global_dbconfig_cache();
+          if (OB_ISNULL(prev_shard_conn)) {
+            ret = OB_ERR_UNEXPECTED;
+            LOG_WARN("prev shard connector info is null", K(ret));
+          } else if (OB_FAIL(cs_info.get_logic_tenant_name(logic_tenant_name))) {
+            ret = OB_ERR_UNEXPECTED; // no need response, just return ret and disconnect
+            LOG_ERROR("fail to get logic tenant name", K(ret));
+          } else if (OB_ISNULL(logic_db_info = dbconfig_cache.get_exist_db_info(logic_tenant_name, database_name))) {
+            ret = OB_ERR_BAD_DATABASE;
+            LOG_WARN("database not exist", K(logic_tenant_name), K(database_name));
+          } else if (OB_FAIL(logic_db_info->get_first_group_shard_connector(shard_conn, OBPROXY_MAX_DBMESH_ID, false, TESTLOAD_NON))) {
+            LOG_WARN("fail to get random shard connector", K(ret), KPC(logic_db_info));
+          } else if (*prev_shard_conn != *shard_conn) {
+            if (OB_FAIL(change_connector(*logic_db_info, client_session, trans_state, prev_shard_conn, shard_conn))) {
+              LOG_WARN("fail to change connector", KPC(prev_shard_conn), KPC(shard_conn), K(ret));
+            }
+          }
+
+          if (OB_SUCC(ret)) {
+            snprintf(real_database_name, OB_MAX_DATABASE_NAME_LENGTH, "%.*s",
+                     shard_conn->database_name_.length(), shard_conn->database_name_.ptr());
+            is_single_shard_db_table = logic_db_info->is_single_shard_db_table();
+          }
+        }
+      }
+    }
+
+    if (OB_SUCC(ret) && last_database_name.empty()) {
+      ret = OB_NOT_SUPPORTED;
+      LOG_WARN("do not support zero schema", K(ret));
+    }
+
+    for (int64_t i = 0; OB_SUCC(ret) && i < db_table_pos_array.count(); i++) {
+      ObProxyDbTablePos &db_table_pos = db_table_pos_array.at(i);
+      if (SHARDING_POS_DB == db_table_pos.get_type()) {
+        const ObString &database_name = db_table_pos.get_name();
+        int32_t database_pos = db_table_pos.get_pos();
+        if (OB_FAIL(rewrite_shard_request_db(sql_ptr, database_pos, 0, database_name.length(),
+                                             real_database_name, cs_info.is_oracle_mode(),
+                                             is_single_shard_db_table, new_sql, copy_pos))) {
+          LOG_WARN("fail to rewrite db", K(ret));
+        } else {
+          is_rewrite_sql = true;
+        }
+      } else if (!is_single_shard_db_table && SHARDING_POS_TABLE == db_table_pos.get_type()) {
+        int32_t table_pos = db_table_pos.get_pos();
+        const ObString &table_name = db_table_pos.get_name();
+        int64_t tb_index = 0;
+        ObTestLoadType testload_type = TESTLOAD_NON;
+        ObString hint_table;
+        if (OB_FAIL(logic_db_info->get_real_table_name(table_name, sql_result,
+                                                       real_table_name, OB_MAX_TABLE_NAME_LENGTH,
+                                                       tb_index, hint_table, testload_type))) {
+          if (OB_ENTRY_NOT_EXIST == ret) {
+            // If the table does not exist, ignore the table name
+            ret = OB_SUCCESS;
+          } else {
+            LOG_WARN("fail to get real table name", K(table_name), K(tb_index), K(testload_type), K(ret));
+          }
+        } else if (OB_FAIL(rewrite_shard_request_table_no_db(sql_ptr, table_pos, table_name.length(), real_table_name,
+                                                             cs_info.is_oracle_mode(), is_single_shard_db_table,
+                                                             new_sql, copy_pos))) {
+          LOG_WARN("fail to rewrite table", K(ret));
+        } else {
+          is_rewrite_sql = true;
+        }
+      }
+    }
+
+    if (OB_SUCC(ret) && is_rewrite_sql) {
+      const uint32_t PARSE_EXTRA_CHAR_NUM = 2;
+      new_sql.append(sql_ptr + copy_pos, sql_len - copy_pos - PARSE_EXTRA_CHAR_NUM);
+
+      // 4. push reader forward by consuming old buffer and write new sql into buffer
+      if (OB_FAIL(client_buffer_reader.consume_all())) {
+        LOG_WARN("fail to consume all", K(ret));
+      } else {
+        ObMIOBuffer *writer = client_buffer_reader.mbuf_;
+        if (OB_ISNULL(writer)) {
+          ret = OB_ERR_UNEXPECTED;
+          LOG_WARN("unexpected null values ", K(writer), K(ret));
+          // no need compress here, if server session support compress, it will compress later
+        } else if (OB_FAIL(ObMysqlRequestBuilder::build_mysql_request(*writer, obmysql::OB_MYSQL_COM_QUERY, new_sql.string(), false, false))) {
+          LOG_WARN("fail to build_mysql_request", K(new_sql), K(ret));
+        } else if (OB_FAIL(ObProxySessionInfoHandler::rewrite_query_req_by_sharding(cs_info, client_request, client_buffer_reader))) {
+          LOG_WARN("fail to rewrite_query_req_by_sharding", K(ret));
+        }
+      }
+    }
+
+    if (NULL != shard_conn) {
+      shard_conn->dec_ref();
+      shard_conn = NULL;
+    }
+
+    if (NULL != logic_db_info) {
+      logic_db_info->dec_ref();
+      logic_db_info = NULL;
+    }
+  }
+
+  return ret;
+}
+
 /*
  * if no table name
  *   use last shard connector
@@ -1049,8 +1228,13 @@ bool ObProxyShardUtils::is_read_stmt(ObClientSessionInfo &session_info, ObMysqlT
  */
 int ObProxyShardUtils::do_handle_single_shard_request(ObMysqlClientSession &client_session,
                                                       ObMysqlTransact::ObTransState &trans_state,
-                                                      ObIOBufferReader &client_buffer_reader,
-                                                      ObDbConfigLogicDb &logic_db_info)
+                                                      ObDbConfigLogicDb &logic_db_info,
+                                                      const ObString& sql,
+                                                      ObSqlString& new_sql,
+                                                      ObSqlParseResult &parse_result,
+                                                      int64_t& es_index,
+                                                      int64_t& group_index,
+                                                      const int64_t last_es_index)
 {
   int ret = OB_SUCCESS;
 
@@ -1060,30 +1244,19 @@ int ObProxyShardUtils::do_handle_single_shard_request(ObMysqlClientSession &clie
   ObShardConnector *shard_conn = NULL;
   ObShardConnector *prev_shard_conn = session_info.get_shard_connector();
 
-  ObProxyMysqlRequest &client_request = trans_state.trans_info_.client_request_;
-  ObSqlParseResult &parse_result = client_request.get_parse_result();
-  ObString table_name = client_request.get_parse_result().get_origin_table_name();
-  int64_t group_index = OBPROXY_MAX_DBMESH_ID;
+  ObString table_name = parse_result.get_origin_table_name();
+  es_index = OBPROXY_MAX_DBMESH_ID;
+  group_index = OBPROXY_MAX_DBMESH_ID;
   int64_t tb_index = OBPROXY_MAX_DBMESH_ID;
-  int64_t es_index = OBPROXY_MAX_DBMESH_ID;
   ObTestLoadType testload_type = TESTLOAD_NON;
   ObString hint_table;
   bool is_need_rewrite_sql = false;
   bool is_skip_rewrite_check = false;
-  bool is_need_skip_router = false;
+  bool is_sticky_session = false;
   if (OB_FAIL(get_shard_hint(logic_db_info, parse_result,
-              group_index, tb_index, es_index, hint_table, testload_type))) {
+              group_index, tb_index, es_index, hint_table, testload_type, is_sticky_session))) {
     LOG_WARN("fail to get shard hint", K(ret));
   } else {
-    // some case can skip route:
-    //  1. if specify group_index, tb_index, es_index
-    //  2. if in trans, use last shard connector
-    //  3. special sql, use last shard connector
-    is_need_skip_router = (!(OBPROXY_MAX_DBMESH_ID != es_index && 0 != es_index)
-                             && ((is_sharding_in_trans(session_info, trans_state))
-                                 || parse_result.is_show_stmt()
-                                 || (parse_result.is_select_stmt() && parse_result.has_last_insert_id())));
-    
     // some case can skip rewrite check:
     //   1. if sql have table name, can not skip
     //   2. if sql have no table name
@@ -1101,7 +1274,7 @@ int ObProxyShardUtils::do_handle_single_shard_request(ObMysqlClientSession &clie
     //   1. sql have db
     //   2. have testload flag
     //   3. specify table in hint
-    is_need_rewrite_sql = (!is_skip_rewrite_check) && (!client_request.get_parse_result().get_origin_database_name().empty()
+    is_need_rewrite_sql = (!is_skip_rewrite_check) && (!parse_result.get_origin_database_name().empty()
                           || TESTLOAD_NON != testload_type
                           || !hint_table.empty());
 
@@ -1111,159 +1284,328 @@ int ObProxyShardUtils::do_handle_single_shard_request(ObMysqlClientSession &clie
         || (is_need_rewrite_sql && table_name.empty())) {
       ret = OB_NOT_SUPPORTED;
       LOG_WARN("sql with dbmesh route hint and no table name is unsupported", K(tb_index), K(group_index), K(is_need_rewrite_sql), K(ret));
-     }
+    }
   }
 
   if (OB_SUCC(ret)) {
     char real_table_name[OB_MAX_TABLE_NAME_LENGTH];
     char real_database_name[OB_MAX_DATABASE_NAME_LENGTH];
 
-    if (!is_need_skip_router) {
-      bool is_read_stmt = ObProxyShardUtils::is_read_stmt(session_info, trans_state, parse_result);
+    // The write request takes the write weight, and the request in the transaction is considered to be write
+    // Read Request Walk Weight
+    bool is_read_stmt = ObProxyShardUtils::is_read_stmt(session_info, trans_state, parse_result);
 
-      if (OB_FAIL(logic_db_info.get_single_table_info(table_name, shard_conn,
-                                                      real_database_name, OB_MAX_DATABASE_NAME_LENGTH,
-                                                      real_table_name, OB_MAX_TABLE_NAME_LENGTH,
-                                                      group_index, tb_index, es_index,
-                                                      hint_table, testload_type, is_read_stmt))) {
-        LOG_WARN("shard tpo info is null", K(ret));
-      } else if (OB_ISNULL(shard_conn) || OB_ISNULL(prev_shard_conn)) {
-        ret = OB_EXPR_CALC_ERROR;
-        LOG_WARN("shard connector info or prev shard connector info is null", KP(shard_conn),
-                 KP(prev_shard_conn), K(ret));
-      } else if (*prev_shard_conn != *shard_conn) {
-        if (OB_FAIL(change_connector(logic_db_info, client_session, trans_state, prev_shard_conn, shard_conn))) {
-          LOG_WARN("fail to change connector", KPC(prev_shard_conn), KPC(shard_conn), K(ret));
-        }
-      } 
-      if (OB_NOT_NULL(shard_conn)) {
-        shard_conn->dec_ref();
-        shard_conn = NULL;
-      }
-    } else { // is_need_skip_router == true, write new table_name and database_name
-      if (OB_NOT_NULL(prev_shard_conn) && OB_FAIL(logic_db_info.get_single_real_table_info(table_name, *prev_shard_conn,
-                                                                     real_database_name, OB_MAX_DATABASE_NAME_LENGTH,
-                                                                     real_table_name, OB_MAX_TABLE_NAME_LENGTH,
-                                                                     hint_table))) {
-        LOG_WARN("fail to get real table info", K(table_name), K(ret));
-      } else if (OB_ISNULL(prev_shard_conn)) {
-        ret = OB_ERR_UNEXPECTED;
-        LOG_WARN("shard previous connection info is null to use", K(is_need_skip_router), K(ret));
+    if (OB_FAIL(logic_db_info.get_single_table_info(table_name, shard_conn,
+                                                    real_database_name, OB_MAX_DATABASE_NAME_LENGTH,
+                                                    real_table_name, OB_MAX_TABLE_NAME_LENGTH,
+                                                    group_index, tb_index, es_index,
+                                                    hint_table, testload_type, is_read_stmt, last_es_index))) {
+      LOG_WARN("shard tpo info is null", K(ret));
+    } else if (OB_ISNULL(shard_conn) || OB_ISNULL(prev_shard_conn)) {
+      ret = OB_EXPR_CALC_ERROR;
+      LOG_WARN("shard connector info or prev shard connector info is null", KP(shard_conn),
+               KP(prev_shard_conn), K(ret));
+    } else if (*prev_shard_conn != *shard_conn) {
+      if (OB_FAIL(change_connector(logic_db_info, client_session, trans_state, prev_shard_conn, shard_conn))) {
+        LOG_WARN("fail to change connector", KPC(prev_shard_conn), KPC(shard_conn), K(ret));
       }
     }
+    if (OB_NOT_NULL(shard_conn)) {
+      shard_conn->dec_ref();
+      shard_conn = NULL;
+    }
 
-    if (!is_skip_rewrite_check) {
-      LOG_DEBUG("check_and_rewrite_testload_request", K(testload_type), K(ret));
-      if (OB_SUCC(ret) && TESTLOAD_ALIPAY_COMPATIBLE == testload_type && hint_table.empty()) { /* testload = 8 */
-        ret = OB_ERR_TESTLOAD_ALIPAY_COMPATIBLE;
-        LOG_WARN("not have table_name's hint for 'testload=8' (TESTLOAD_ALIPAY_COMPATIBLE)", K(ret));
-      } else if (OB_SUCC(ret) && TESTLOAD_NON != testload_type) { //rewrite table name for testload
-        ObProxySqlParser sql_parser;
-        ObSqlParseResult &sql_parse_result = client_request.get_parse_result();
-        ObString sql = client_request.get_parse_sql();
-        if (OB_FAIL(sql_parser.parse_sql_by_obparser(sql, NORMAL_PARSE_MODE, sql_parse_result, false))) {
-          LOG_WARN("parse_sql_by_obparser failed", K(ret), K(sql));
-        } else if (OB_FAIL(testload_check_and_rewrite_testload_request(session_info, client_request, client_buffer_reader,
-                                                       false, hint_table, ObString::make_string(real_database_name), logic_db_info))) {
-          LOG_WARN("fail to check and rewrite testload request");
+    if (OB_SUCC(ret)) {
+      if (!is_skip_rewrite_check) {      
+        if (TESTLOAD_ALIPAY_COMPATIBLE == testload_type && hint_table.empty()) { /* testload = 8 */
+          ret = OB_ERR_TESTLOAD_ALIPAY_COMPATIBLE;
+          LOG_WARN("not have table_name's hint for 'testload=8' (TESTLOAD_ALIPAY_COMPATIBLE)", K(ret));
+        } else if (TESTLOAD_NON != testload_type) { //rewrite table name for testload
+          LOG_DEBUG("check_and_rewrite_testload_request", K(testload_type), K(ret));
+          ObProxySqlParser sql_parser;
+          if (OB_FAIL(sql_parser.parse_sql_by_obparser(ObProxyMysqlRequest::get_parse_sql(sql), 
+                                                      NORMAL_PARSE_MODE, parse_result, false))) {
+            LOG_WARN("parse_sql_by_obparser failed", K(ret), K(sql));
+          } else if (OB_FAIL(testload_check_and_rewrite_testload_request(parse_result, false, hint_table, 
+                                                                        ObString::make_string(real_database_name), 
+                                                                        logic_db_info, sql, new_sql))) {
+            LOG_WARN("fail to check and rewrite testload request");
+          }
+        } else if (is_need_rewrite_sql) {
+          if (OB_FAIL(rewrite_shard_request(session_info, parse_result, table_name, 
+                                            logic_db_info.db_name_.config_string_, ObString::make_string(real_table_name),
+                                            ObString::make_string(real_database_name), true, sql, new_sql))) {
+              LOG_WARN("fail to rewrite shard request", K(ret), K(table_name),
+                      K(logic_db_info.db_name_), K(real_table_name), K(real_database_name));
+          } 
         } else {
-          is_need_rewrite_sql = false;
-          LOG_DEBUG("check and rewrite testload data");
-        }
-      }
-
-      if (OB_SUCC(ret) && is_need_rewrite_sql) {
-        if (OB_FAIL(rewrite_shard_request(session_info, client_request, client_buffer_reader,
-                                          table_name, logic_db_info.db_name_.config_string_, ObString::make_string(real_table_name),
-                                          ObString::make_string(real_database_name), true))) {
-          LOG_WARN("fail to rewrite shard request", K(ret), K(table_name),
-                   K(logic_db_info.db_name_), K(real_table_name), K(real_database_name));
+          //no need to rewrite sql, just append to new sql;
+          ret = new_sql.append(sql);
+          LOG_DEBUG("not need to rewrite sql by rules", K(real_database_name), K(real_table_name));
         }
+      } else {
+        //no need to rewrite sql, just append to new sql;
+        ret = new_sql.append(sql);
+        LOG_DEBUG("not need to rewrite sql by rules", K(real_database_name), K(real_table_name));
       }
-    } else {
-      LOG_DEBUG("not need to rewrite sql by rules", K(real_database_name), K(real_table_name));
-    }
+    } 
   }
-
   return ret;
 }
 
-int ObProxyShardUtils::handle_single_shard_request(ObMysqlSM *sm,
-                                                   ObMysqlClientSession &client_session,
+int ObProxyShardUtils::handle_single_shard_request(ObMysqlClientSession &client_session,
                                                    ObMysqlTransact::ObTransState &trans_state,
                                                    ObIOBufferReader &client_buffer_reader,
-                                                   ObDbConfigLogicDb &logic_db_info,
-                                                   bool &need_wait_callback)
+                                                   ObDbConfigLogicDb &logic_db_info)
 {
   int ret = OB_SUCCESS;
 
+  ObClientSessionInfo &session_info = client_session.get_session_info();
   ObProxyMysqlRequest &client_request = trans_state.trans_info_.client_request_;
-  ObSqlParseResult &parse_result = client_request.get_parse_result();
-  const ObString runtime_env = get_global_proxy_config().runtime_env.str();
-  if (parse_result.is_ddl_stmt() && 0 == runtime_env.case_compare(OB_PROXY_DBP_RUNTIME_ENV)) {
-    if (OB_FAIL(handle_ddl_request(sm, client_session, trans_state, logic_db_info, need_wait_callback))) {
-      LOG_WARN("fail to handle ddl request", K(ret));
+  ObSqlParseResult &origin_parse_result = client_request.get_parse_result();
+  ObString origin_sql = client_request.get_sql();//should not use get_parse_sql()
+  ObSqlString new_sql;
+  ObSEArray<ObString, 4> sql_array;
+  ObArenaAllocator &allocator = origin_parse_result.allocator_;
+  char * multi_sql_buf = NULL;
+  int64_t es_index = OBPROXY_MAX_DBMESH_ID;
+  int64_t group_index = OBPROXY_MAX_DBMESH_ID;
+  int64_t last_es_index = OBPROXY_MAX_DBMESH_ID;
+  int64_t last_group_index = OBPROXY_MAX_DBMESH_ID;
+  if (OB_FAIL(ObProxySqlParser::split_multiple_stmt(origin_sql, sql_array))) {
+    LOG_WARN("fail to split sql", K(ret));
+  } else if (OB_UNLIKELY(sql_array.count() <= 0)){
+    ret = OB_ERR_PARSER_SYNTAX;
+    LOG_WARN("fail to split sql and the sql num is wrong", K(ret));
+  } else if (OB_UNLIKELY((sql_array.count() > 1) 
+             && OB_FAIL(ObProxySqlParser::preprocess_multi_stmt(allocator,
+                                                                multi_sql_buf,
+                                                                origin_sql.length(),
+                                                                sql_array)))) {
+    LOG_WARN("fail to preprocess multi stmt", K(ret));
+  } else {
+    bool is_multi_stmt = sql_array.count() > 1;
+    ObSqlParseResult parse_result;
+    ObSqlParseResult* real_parse_result = NULL;
+    ObProxySqlParser sql_parser;
+    for (int64_t i = 0; OB_SUCC(ret) && i < sql_array.count(); ++i) {
+      const ObString& sql = sql_array.at(i);
+      if (0 == i) {
+        real_parse_result = &origin_parse_result;
+      } else if (OB_FAIL(sql_parser.parse_sql(ObProxyMysqlRequest::get_parse_sql(sql),
+                                      NORMAL_PARSE_MODE/*parse_mode*/, parse_result,
+                                      false/*use_lower_case_name*/,
+                                      static_cast<common::ObCollationType>(client_session.get_session_info().get_collation_connection()),
+                                      false/*drop_origin_db_table_name*/,
+                                      true /*is sharding user*/))) {
+        LOG_WARN("fail to handle single shard request for single sql", K(ret), K(sql));
+      } else {
+        real_parse_result = &parse_result;
+      }
+
+      if (OB_SUCC(ret)) {
+        if (OB_UNLIKELY(real_parse_result->is_invalid_stmt() && real_parse_result->has_shard_comment())) {
+          ret = OB_ERR_PARSER_SYNTAX;
+          LOG_WARN("fail to parse shard sql with shard comment","sql", client_request.get_sql(), K(ret));
+        } else if (OB_UNLIKELY(is_multi_stmt && ObProxyShardUtils::is_unsupport_type_in_multi_stmt(*real_parse_result))) {
+          ret = OB_NOT_SUPPORTED;
+          LOG_WARN("unsupport type in multi stmt", K(ret), K(sql));
+        } else if (OB_FAIL(do_handle_single_shard_request(client_session, trans_state, logic_db_info, sql, new_sql,  
+                                                          *real_parse_result, es_index, group_index, last_es_index))) {
+          LOG_WARN("fail to handle single shard request for single sql", K(ret), K(sql), K(new_sql));
+        } else if (OB_UNLIKELY((i > 0) && ((es_index != last_es_index) || (group_index != last_group_index)))) {
+          ret = OB_ERR_DISTRIBUTED_NOT_SUPPORTED;
+          LOG_WARN("different elastic index or group index for multi stmt is not supported", K(es_index), K(last_es_index), K(group_index), 
+                                                                                            K(last_group_index), K(sql), K(new_sql), K(ret));
+        } else {
+          last_es_index = es_index;
+          last_group_index = group_index;
+          if (i > 0) {
+            real_parse_result->reset();
+          }
+        }
+      }
+    }
+  }
+
+  if (OB_SUCC(ret)) {
+    if (OB_FAIL(build_shard_request_packet(session_info, client_request, client_buffer_reader, new_sql.string()))) {
+      LOG_WARN("fail to build sharding request packet", K(ret));  
     }
-  } else if (OB_FAIL(do_handle_single_shard_request(client_session, trans_state,
-                                                    client_buffer_reader, logic_db_info))) {
-    LOG_WARN("fail to handle single shard request", K(ret));
+  }
+
+  if(NULL != multi_sql_buf) {
+    allocator.free(multi_sql_buf);
   }
 
   return ret;
 }
 
-int ObProxyShardUtils::handle_shard_request(ObMysqlSM *sm,
-                       ObMysqlClientSession &client_session,
-                       ObMysqlTransact::ObTransState &trans_state,
-                       ObIOBufferReader &client_buffer_reader,
-                       ObDbConfigLogicDb &db_info,
-                       bool &need_wait_callback)
+int ObProxyShardUtils::handle_shard_request(ObMysqlClientSession &client_session,
+                                            ObMysqlTransact::ObTransState &trans_state,
+                                            ObIOBufferReader &client_buffer_reader,
+                                            ObDbConfigLogicDb &logic_db_info)
 {
   int ret = OB_SUCCESS;
+
   ObClientSessionInfo &session_info = client_session.get_session_info();
   session_info.set_enable_reset_db(false);
   ObProxyMysqlRequest &client_request = trans_state.trans_info_.client_request_;
-  ObSqlParseResult &parse_result = client_request.get_parse_result();
-  ObString table_name = client_request.get_parse_result().get_origin_table_name();
-  if (parse_result.is_ddl_stmt()) {
-    const ObString runtime_env = get_global_proxy_config().runtime_env.str();
-    if (0 == runtime_env.case_compare(OB_PROXY_DBP_RUNTIME_ENV)) {
-      if (OB_FAIL(handle_ddl_request(sm, client_session, trans_state, db_info, need_wait_callback))) {
-        LOG_WARN("fail to handle ddl request", K(ret));
+  ObSqlParseResult &origin_parse_result = client_request.get_parse_result();
+  ObString first_table_name = origin_parse_result.get_origin_table_name();
+  ObString origin_sql = client_request.get_sql();//should not use get_parse_sql()
+  ObSqlString new_sql;
+  ObSEArray<ObString, 4> sql_array;
+  ObArenaAllocator &allocator = origin_parse_result.allocator_;
+  char * multi_sql_buf = NULL;
+  int64_t es_index = OBPROXY_MAX_DBMESH_ID;
+  int64_t group_index = OBPROXY_MAX_DBMESH_ID;
+  int64_t last_es_index = OBPROXY_MAX_DBMESH_ID;
+  int64_t last_group_index = OBPROXY_MAX_DBMESH_ID;
+  bool is_scan_all = false;
+
+  if (OB_FAIL(ObProxySqlParser::split_multiple_stmt(origin_sql, sql_array))) {
+    LOG_WARN("fail to split sql", K(ret));
+  } else if (OB_UNLIKELY(sql_array.count() <= 0)){
+    ret = OB_ERR_PARSER_SYNTAX;
+    LOG_WARN("fail to split sql and the sql num is wrong", K(ret));
+  } else if (OB_UNLIKELY((sql_array.count() > 1) 
+             && OB_FAIL(ObProxySqlParser::preprocess_multi_stmt(allocator,
+                                                                multi_sql_buf,
+                                                                origin_sql.length(),
+                                                                sql_array)))) {
+    LOG_WARN("fail to preprocess multi stmt", K(ret));
+  } else {
+    bool is_multi_stmt = sql_array.count() > 1;
+    ObSqlParseResult parse_result;
+    ObSqlParseResult* real_parse_result = NULL;
+    ObProxySqlParser sql_parser;
+    for (int64_t i = 0; OB_SUCC(ret) && i < sql_array.count(); ++i) {
+      const ObString& sql = sql_array.at(i);
+      if (0 == i) {
+        real_parse_result = &origin_parse_result;
+      } else if (OB_FAIL(sql_parser.parse_sql(ObProxyMysqlRequest::get_parse_sql(sql),
+                                      NORMAL_PARSE_MODE/*parse_mode*/, parse_result,
+                                      false/*use_lower_case_name*/,
+                                      static_cast<common::ObCollationType>(client_session.get_session_info().get_collation_connection()),
+                                      false/*drop_origin_db_table_name*/,
+                                      true /*is sharding user*/))) {
+        LOG_WARN("fail to handle single shard request for single sql", K(ret), K(sql));
+      } else {
+        real_parse_result = &parse_result;
       }
-    } else {
-      ret = OB_NOT_SUPPORTED;
-      LOG_WARN("ddl stmt is unsupported for sharding table", K(ret));
-    }
-  } else if (parse_result.is_show_tables_stmt()
-             || parse_result.is_show_full_tables_stmt()
-             || parse_result.is_show_table_status_stmt()
-             || (table_name.empty() && !parse_result.is_dml_stmt())) {
-    //do nothing
-  } else if (table_name.empty()) {
-    // keep compatible, skip
-  } else if (parse_result.is_multi_stmt()) {
-    ret = OB_NOT_SUPPORTED;
-    LOG_WARN("multi stmt is unsupported for sharding table", "stmt type", parse_result.get_stmt_type(), K(ret));
+
+      if (OB_SUCC(ret)) {
+        if (OB_UNLIKELY(real_parse_result->is_invalid_stmt() && real_parse_result->has_shard_comment())) {
+          ret = OB_ERR_PARSER_SYNTAX;
+          LOG_WARN("fail to parse shard sql with shard comment","sql", client_request.get_sql(), K(ret));
+        } else if (OB_UNLIKELY(is_multi_stmt && ObProxyShardUtils::is_unsupport_type_in_multi_stmt(*real_parse_result))) {
+          ret = OB_NOT_SUPPORTED;
+          LOG_WARN("unsupport type in multi stmt", K(ret), K(sql));
+        } else if (OB_FAIL(do_handle_shard_request(client_session, trans_state, logic_db_info, sql, new_sql, *real_parse_result, 
+                                                  es_index, group_index, last_es_index, is_scan_all))) {
+          LOG_WARN("fail to handle single shard request for single sql", K(ret), K(sql), K(new_sql));
+        } else if (OB_UNLIKELY((i > 0) && ((es_index != last_es_index) || (group_index != last_group_index)))) {
+          ret = OB_ERR_DISTRIBUTED_NOT_SUPPORTED;
+          LOG_WARN("different elastic index or group index for multi stmt is not supported", K(es_index), K(last_es_index), K(group_index), 
+                                                                                            K(last_group_index), K(sql), K(new_sql), K(ret));
+        } else if (OB_UNLIKELY(is_multi_stmt && is_scan_all)) {
+          ret = OB_ERR_DISTRIBUTED_NOT_SUPPORTED;
+          LOG_WARN("scan all sql in multi stmt is not supported", K(sql), K(new_sql), K(ret));
+        } else {
+          last_es_index = es_index;
+          last_group_index = group_index;
+          if (i > 0) {
+            real_parse_result->reset();
+          }
+        }
+      }
+    }
+
+    if (OB_SUCC(ret)) {
+      if (is_scan_all) {
+        if (OB_FAIL(handle_scan_all_real_info(logic_db_info, client_session, trans_state, first_table_name))) {
+          LOG_WARN("fail to handle scan all real info", K(first_table_name), K(ret));
+        }
+      } else {
+        if (OB_FAIL(build_shard_request_packet(session_info, client_request, client_buffer_reader, new_sql.string()))) {
+          LOG_WARN("fail to build sharding request packet", K(new_sql), K(ret));  
+        }
+      }  
+    }
+  }
+  
+  if(NULL != multi_sql_buf) {
+    allocator.free(multi_sql_buf);
+  }
+
+  return ret;
+}
+
+int ObProxyShardUtils::do_handle_shard_request(ObMysqlClientSession &client_session,
+                                               ObMysqlTransact::ObTransState &trans_state,
+                                               ObDbConfigLogicDb &db_info,
+                                               const ObString& sql,
+                                               ObSqlString& new_sql,
+                                               ObSqlParseResult &parse_result,
+                                               int64_t& es_index,
+                                               int64_t& group_index,
+                                               const int64_t last_es_index,
+                                               bool& is_scan_all)
+{
+  int ret = OB_SUCCESS;
+
+  ObString table_name = parse_result.get_origin_table_name();
+  if (OB_UNLIKELY(is_unsupport_type_in_multi_stmt(parse_result)
+      || table_name.empty())) {
+    // Let it go for now, keep compatible
+    new_sql.append(sql);
   } else if (parse_result.is_show_stmt() || parse_result.is_desc_table_stmt()) {
-    if (OB_FAIL(handle_other_request(client_session, trans_state,
-                                     client_buffer_reader, table_name, db_info))) {
-      LOG_WARN("fail to handle other request", K(ret), K(session_info), K(table_name));
+    if (OB_FAIL(handle_other_request(client_session, trans_state, table_name, db_info, 
+                                     sql, new_sql, parse_result, es_index, group_index))) {
+      LOG_WARN("fail to handle other request", K(ret), K(sql), K(new_sql), K(table_name));
     }
   } else if (parse_result.is_select_stmt()) {
-    if (OB_FAIL(handle_select_request(client_session, trans_state,
-                                      client_buffer_reader, table_name, db_info))) {
-      LOG_WARN("fail to handle select request", K(ret), K(session_info), K(table_name));
+    if (OB_FAIL(handle_select_request(client_session, trans_state, table_name, db_info, 
+                                      sql, new_sql, parse_result, es_index, group_index, last_es_index, is_scan_all))) {
+      LOG_WARN("fail to handle select request", K(ret), K(sql), K(new_sql), K(table_name));
     }
   } else if (parse_result.is_dml_stmt()) {
-    if (OB_FAIL(handle_dml_request(client_session, trans_state,
-                                   client_buffer_reader, table_name, db_info))) {
-      LOG_WARN("fail to handle dml request", K(table_name), K(ret));
+    if (OB_FAIL(handle_dml_request(client_session, trans_state, table_name, db_info,
+                                   sql, new_sql, parse_result, es_index, group_index, last_es_index))) {
+      LOG_WARN("fail to handle dml request", K(table_name), K(sql), K(new_sql), K(ret));
     }
   } else {
     ret = OB_NOT_SUPPORTED;
     LOG_WARN("stmt is unsupported for sharding table", "stmt type", parse_result.get_stmt_type(), K(ret));
+  }
+  
+  return ret;
 }
+
+int ObProxyShardUtils::build_shard_request_packet(ObClientSessionInfo &session_info,
+                                                  ObProxyMysqlRequest &client_request,
+                                                  ObIOBufferReader &client_buffer_reader,
+                                                  const ObString& sql)
+{
+  int ret = OB_SUCCESS;
+
+  // 4. push reader forward by consuming old buffer and write new sql into buffer
+  if (OB_FAIL(client_buffer_reader.consume_all())) {
+    LOG_WARN("fail to consume all", K(ret));
+  } else {
+    ObMIOBuffer *writer = client_buffer_reader.mbuf_;
+    if (OB_ISNULL(writer)) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("unexpected null values ", K(writer), K(ret));
+      // no need compress here, if server session support compress, it will compress later
+    } else if (OB_FAIL(ObMysqlRequestBuilder::build_mysql_request(*writer, obmysql::OB_MYSQL_COM_QUERY, sql, false, false))) {
+      LOG_WARN("fail to build_mysql_request", K(sql), K(ret));
+    } else if (OB_FAIL(ObProxySessionInfoHandler::rewrite_query_req_by_sharding(session_info, client_request, client_buffer_reader))) {
+      LOG_WARN("fail to rewrite_query_req_by_sharding", K(ret));
+    }
+  }
+
   return ret;
 }
 
@@ -1314,25 +1656,29 @@ int ObProxyShardUtils::handle_ddl_request(ObMysqlSM *sm,
 
 int ObProxyShardUtils::handle_other_request(ObMysqlClientSession &client_session,
                                             ObMysqlTransact::ObTransState &trans_state,
-                                            ObIOBufferReader &client_buffer_reader,
                                             const ObString &table_name,
-                                            ObDbConfigLogicDb &db_info)
+                                            ObDbConfigLogicDb &db_info,
+                                            const ObString& sql,
+                                            ObSqlString& new_sql,
+                                            ObSqlParseResult &parse_result,
+                                            int64_t& es_index,
+                                            int64_t& group_index)
 {
   int ret = OB_SUCCESS;
 
   ObClientSessionInfo &session_info = client_session.get_session_info();
-  ObProxyMysqlRequest &client_request = trans_state.trans_info_.client_request_;
   char real_table_name[OB_MAX_TABLE_NAME_LENGTH];
   char real_database_name[OB_MAX_DATABASE_NAME_LENGTH];
 
   if (OB_FAIL(handle_other_real_info(db_info, client_session, trans_state, table_name,
                                      real_database_name, OB_MAX_DATABASE_NAME_LENGTH,
-                                     real_table_name, OB_MAX_TABLE_NAME_LENGTH))) {
+                                     real_table_name, OB_MAX_TABLE_NAME_LENGTH, 
+                                     parse_result, es_index, group_index))) {
     LOG_WARN("fail to handle other real info", K(ret), K(session_info), K(table_name));
-  } else if (OB_FAIL(rewrite_shard_request(session_info, client_request, client_buffer_reader,
+  } else if (OB_FAIL(rewrite_shard_request(session_info, parse_result,
                                            table_name, db_info.db_name_.config_string_,
                                            ObString::make_string(real_table_name),
-                                           ObString::make_string(real_database_name), false))) {
+                                           ObString::make_string(real_database_name), false, sql, new_sql))) {
     LOG_WARN("fail to rewrite shard request", K(ret), K(table_name),
              K(db_info.db_name_), K(real_table_name), K(real_database_name));
   }
@@ -1342,19 +1688,20 @@ int ObProxyShardUtils::handle_other_request(ObMysqlClientSession &client_session
 
 int ObProxyShardUtils::handle_select_request(ObMysqlClientSession &client_session,
                                              ObMysqlTransact::ObTransState &trans_state,
-                                             ObIOBufferReader &client_buffer_reader,
                                              const ObString &table_name,
-                                             ObDbConfigLogicDb &db_info)
+                                             ObDbConfigLogicDb &db_info,
+                                             const ObString& sql,
+                                             ObSqlString& new_sql,
+                                             ObSqlParseResult &parse_result,
+                                             int64_t& es_index,
+                                             int64_t& group_index,
+                                             const int64_t last_es_index,
+                                             bool& is_scan_all)
 {
   int ret = OB_SUCCESS;
-  ObProxyMysqlRequest &client_request = trans_state.trans_info_.client_request_;
-  ObSqlParseResult &parse_result = client_request.get_parse_result();
   SqlFieldResult& sql_result = parse_result.get_sql_filed_result();
-
-  bool is_scan_all = false;
   ObProxySqlParser sql_parser;
-  ObString sql = client_request.get_parse_sql();
-  if (OB_FAIL(sql_parser.parse_sql_by_obparser(sql, NORMAL_PARSE_MODE, parse_result, true))) {
+  if (OB_FAIL(sql_parser.parse_sql_by_obparser(ObProxyMysqlRequest::get_parse_sql(sql), NORMAL_PARSE_MODE, parse_result, true))) {
     LOG_WARN("parse_sql_by_obparser failed", K(ret), K(sql));
   } else if (FALSE_IT(is_scan_all = need_scan_all(parse_result))) {
     // impossible
@@ -1366,12 +1713,10 @@ int ObProxyShardUtils::handle_select_request(ObMysqlClientSession &client_sessio
 
   if (OB_SUCC(ret)) {
     if (is_scan_all) {
-      if (OB_FAIL(handle_scan_all_real_info(db_info, client_session, trans_state, table_name))) {
-        LOG_WARN("fail to handle scan all real info", K(table_name), K(ret));
-      }
+      //handle scan all later
     } else {
-      if (OB_FAIL(handle_select_real_info(db_info, client_session, trans_state,
-                                          table_name, client_buffer_reader))) {
+      if (OB_FAIL(handle_dml_real_info(db_info, client_session, trans_state, table_name, 
+                                       sql, new_sql, parse_result, es_index, group_index, last_es_index))) {
         LOG_WARN("fail to handle dml real info", K(table_name), K(ret));
       }
     }
@@ -1382,37 +1727,22 @@ int ObProxyShardUtils::handle_select_request(ObMysqlClientSession &client_sessio
 
 int ObProxyShardUtils::handle_dml_request(ObMysqlClientSession &client_session,
                                           ObMysqlTransact::ObTransState &trans_state,
-                                          ObIOBufferReader &client_buffer_reader,
                                           const ObString &table_name,
-                                          ObDbConfigLogicDb &db_info)
+                                          ObDbConfigLogicDb &db_info,
+                                          const ObString& sql,
+                                          ObSqlString& new_sql,
+                                          ObSqlParseResult &parse_result,
+                                          int64_t& es_index,
+                                          int64_t& group_index,
+                                          const int64_t last_es_index)
 {
   int ret = OB_SUCCESS;
-  ObClientSessionInfo &session_info = client_session.get_session_info();
-  ObProxyMysqlRequest &client_request = trans_state.trans_info_.client_request_;
-  ObSqlParseResult &parse_result = client_request.get_parse_result();
-  char real_table_name[OB_MAX_TABLE_NAME_LENGTH];
-  char real_database_name[OB_MAX_DATABASE_NAME_LENGTH];
-
   ObProxySqlParser sql_parser;
-  ObString sql = client_request.get_parse_sql();
-  if (OB_FAIL(sql_parser.parse_sql_by_obparser(sql, NORMAL_PARSE_MODE, parse_result, true))) {
+  if (OB_FAIL(sql_parser.parse_sql_by_obparser(ObProxyMysqlRequest::get_parse_sql(sql), NORMAL_PARSE_MODE, parse_result, true))) {
     LOG_WARN("parse_sql_by_obparser failed", K(ret), K(sql));
-  }
-  if(OB_FAIL(ret)) {
-    // doing nothing
-  } else if ((parse_result.is_insert_stmt() || parse_result.is_replace_stmt()
-             || parse_result.is_update_stmt()) && parse_result.get_batch_insert_values_count() > 1) {
-    ret = OB_ERR_BATCH_INSERT_FOUND;
-    LOG_WARN("batch insert not supported in sharding sql", K(ret), K(parse_result.get_batch_insert_values_count()));
-  } else if (OB_FAIL(handle_dml_real_info(db_info, client_session, trans_state, table_name,
-                                          real_database_name, OB_MAX_DATABASE_NAME_LENGTH,
-                                          real_table_name, OB_MAX_TABLE_NAME_LENGTH))) {
-    LOG_WARN("fail to handle dml real info", K(ret), K(session_info), K(table_name));
-  } else if (OB_FAIL(rewrite_shard_request(session_info, client_request, client_buffer_reader,
-                                           table_name, db_info.db_name_.config_string_, ObString::make_string(real_table_name),
-                                           ObString::make_string(real_database_name), false))) {
-    LOG_WARN("fail to rewrite shard request", K(ret), K(table_name),
-             K(db_info.db_name_), K(real_table_name), K(real_database_name));
+  } else if (OB_FAIL(handle_dml_real_info(db_info, client_session, trans_state, table_name, 
+                                       sql, new_sql, parse_result, es_index, group_index, last_es_index))) {
+    LOG_WARN("fail to handle dml real info", K(table_name), K(ret));
   }
 
   return ret;
@@ -1423,16 +1753,16 @@ int ObProxyShardUtils::check_topology(ObSqlParseResult &parse_result,
 {
   int ret = OB_SUCCESS;
 
-  ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(parse_result.get_proxy_stmt());
-  if (OB_ISNULL(select_stmt)) {
+  ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(parse_result.get_proxy_stmt());
+  if (OB_ISNULL(dml_stmt)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("select stmt is null, unexpected", K(ret));
   } else {
     int64_t last_db_size = -1;
     int64_t last_tb_size = -1;
-    ObProxySelectStmt::ExprMap &table_exprs_map = select_stmt->get_table_exprs_map();
-    ObProxySelectStmt::ExprMap::iterator iter = table_exprs_map.begin();
-    ObProxySelectStmt::ExprMap::iterator end = table_exprs_map.end();
+    ObProxyDMLStmt::ExprMap &table_exprs_map = dml_stmt->get_table_exprs_map();
+    ObProxyDMLStmt::ExprMap::iterator iter = table_exprs_map.begin();
+    ObProxyDMLStmt::ExprMap::iterator end = table_exprs_map.end();
 
     for (; OB_SUCC(ret) && iter != end; iter++) {
       ObProxyExpr *expr = iter->second;
@@ -1802,6 +2132,10 @@ int ObProxyShardUtils::get_db_version(const ObString &logic_tenant_name,
   } else {
     db_version = logic_db_info->get_version();
   }
+  if (NULL != logic_db_info) {
+    logic_db_info->dec_ref();
+    logic_db_info = NULL;
+  }
   return ret;
 }
 
@@ -1869,26 +2203,27 @@ int ObProxyShardUtils::handle_other_real_info(ObDbConfigLogicDb &logic_db_info,
                                               ObMysqlTransact::ObTransState &trans_state,
                                               const ObString &table_name,
                                               char *real_database_name, int64_t db_name_len,
-                                              char *real_table_name, int64_t tb_name_len)
+                                              char *real_table_name, int64_t tb_name_len,
+                                              ObSqlParseResult &parse_result,
+                                              int64_t& es_id, int64_t& group_id)
 {
   int ret = OB_SUCCESS;
   ObShardConnector *shard_conn = NULL;
   ObClientSessionInfo &cs_info = client_session.get_session_info();
   ObShardConnector *prev_shard_conn = cs_info.get_shard_connector();
-  ObSqlParseResult &parse_result = trans_state.trans_info_.client_request_.get_parse_result();
 
   ObShardRule *logic_tb_info = NULL;
 
-  int64_t group_id = OBPROXY_MAX_DBMESH_ID;
+  group_id = OBPROXY_MAX_DBMESH_ID;
   int64_t table_id = OBPROXY_MAX_DBMESH_ID;
-  int64_t es_id = OBPROXY_MAX_DBMESH_ID;
+  es_id = OBPROXY_MAX_DBMESH_ID;
   ObTestLoadType testload_type = TESTLOAD_NON;
   ObString hint_table;
 
   if (OB_ISNULL(prev_shard_conn)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("shard connector info is null", K(ret));
-  } else if (OB_FAIL(get_shard_hint(logic_db_info, parse_result,
+  } else if (OB_FAIL(get_shard_hint(table_name, cs_info, logic_db_info, parse_result,
                                     group_id, table_id, es_id, hint_table, testload_type))) {
     LOG_WARN("fail to get shard hint", K(ret));
   // get group_id
@@ -1896,21 +2231,24 @@ int ObProxyShardUtils::handle_other_real_info(ObDbConfigLogicDb &logic_db_info,
     LOG_WARN("fail to get shard rule", K(table_name), K(ret));
   } else {
     int64_t last_group_id = cs_info.get_group_id();
-
     ObString saved_database_name;
     cs_info.get_logic_database_name(saved_database_name);
     bool is_not_saved_database = saved_database_name != logic_db_info.db_name_.config_string_;
 
-    // need to re-select a shard_conn condition, and any one of the conditions can be satisfied
-    // 1. SQL comes with database, and it is different from the current logic library
-    // 2. The group id is specified in the hint, and it is different from the last time
-    // 3. No group_id is specified, nor did the last one (for example, switch the library)
-    // 4. If the last group_id is greater than the db_size of the table of this SQL
-    // (for example, the table of the previous SQL is group_{00-99}, the table of this SQL is group_00)
-    if (is_not_saved_database
-        || (group_id != OBPROXY_MAX_DBMESH_ID && group_id != last_group_id)
-        || last_group_id == OBPROXY_MAX_DBMESH_ID
-        || last_group_id >= logic_tb_info->db_size_) {
+    // If group_id is specified, check if it exceeds db_size and use it
+    if (group_id != OBPROXY_MAX_DBMESH_ID) {
+      if (group_id >= logic_tb_info->db_size_) {
+        ret = OB_NOT_SUPPORTED;
+        LOG_WARN("sql with group hint and greater than db size",
+                 "db_size", logic_tb_info->db_size_, K(group_id), K(ret));
+      }
+    // If no group_id is specified, and the database accessed by the current SQL is the session database, the last_group_id is used
+    } else if (!is_not_saved_database && last_group_id < logic_tb_info->db_size_) {
+      group_id = last_group_id;
+      es_id = cs_info.get_es_id();
+    }
+
+    if (OB_SUCC(ret)) {
       ObShardTpo *shard_tpo = NULL;
       ObGroupCluster *gc_info = NULL;
       if (OB_FAIL(logic_db_info.get_shard_tpo(shard_tpo))) {
@@ -1963,15 +2301,6 @@ int ObProxyShardUtils::handle_other_real_info(ObDbConfigLogicDb &logic_db_info,
           }
         }
       }
-
-      //If it is the logic library on the current session, you can reuse this group_id next time
-      if (OB_SUCC(ret) && !is_not_saved_database) {
-        cs_info.set_group_id(group_id);
-      }
-    } else {
-      prev_shard_conn->inc_ref();
-      shard_conn = prev_shard_conn;
-      group_id = last_group_id;
     }
 
     if (OB_SUCC(ret)) {
@@ -1996,6 +2325,13 @@ int ObProxyShardUtils::handle_other_real_info(ObDbConfigLogicDb &logic_db_info,
         }
       }
     }
+
+    //If it is a logic library on the current session, this group_id can be reused next time
+    if (OB_SUCC(ret) && !is_not_saved_database) {
+      cs_info.set_group_id(group_id);
+      cs_info.set_table_id(table_id);
+      cs_info.set_es_id(es_id);
+    }
   }
 
   if (NULL != shard_conn) {
@@ -2020,11 +2356,11 @@ int ObProxyShardUtils::handle_scan_all_real_info(ObDbConfigLogicDb &logic_db_inf
   ObSEArray<ObHashMapWrapper<ObString, ObString>, 4> table_name_map_array;
   ObIAllocator *allocator = NULL;
 
-  ObProxySelectStmt *select_stmt = static_cast<ObProxySelectStmt*>(parse_result.get_proxy_stmt());
-  if (OB_ISNULL(select_stmt)) {
+  ObProxyDMLStmt *dml_stmt = static_cast<ObProxyDMLStmt*>(parse_result.get_proxy_stmt());
+  if (OB_ISNULL(dml_stmt)) {
     ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("select stmt is null, unexpected", K(ret));
-  } else if (select_stmt->has_unsupport_expr_type()) {
+    LOG_WARN("dml stmt is null, unexpected", K(ret));
+  } else if (dml_stmt->has_unsupport_expr_type()) {
     ret = OB_ERROR_UNSUPPORT_EXPR_TYPE;
     LOG_WARN("unsupport sql", K(ret));
   } else if (OB_FAIL(check_topology(parse_result, logic_db_info))) {
@@ -2040,17 +2376,17 @@ int ObProxyShardUtils::handle_scan_all_real_info(ObDbConfigLogicDb &logic_db_inf
                                                       table_name_map_array))) {
     LOG_WARN("fail to handle sharding select real info", K(ret), K(table_name));
   } else {
-    LOG_DEBUG("proxy stmt", K(select_stmt->get_stmt_type()), K(select_stmt->limit_offset_), K(select_stmt->limit_size_));
+    LOG_DEBUG("proxy stmt", K(dml_stmt->get_stmt_type()), K(dml_stmt->limit_offset_), K(dml_stmt->limit_size_));
     LOG_DEBUG("select expr");
-    for (int64_t i = 0; i < select_stmt->select_exprs_.count(); i++) {
-      ObProxyExpr::print_proxy_expr(select_stmt->select_exprs_.at(i));
+    for (int64_t i = 0; i < dml_stmt->select_exprs_.count(); i++) {
+      ObProxyExpr::print_proxy_expr(dml_stmt->select_exprs_.at(i));
     }
     LOG_DEBUG("group by expr");
-    for (int64_t i = 0; i < select_stmt->group_by_exprs_.count(); i++) {
-      ObProxyExpr::print_proxy_expr(select_stmt->group_by_exprs_.at(i));
+    for (int64_t i = 0; i < dml_stmt->group_by_exprs_.count(); i++) {
+      ObProxyExpr::print_proxy_expr(dml_stmt->group_by_exprs_.at(i));
     }
-    for (int64_t i = 0; i < select_stmt->order_by_exprs_.count(); i++) {
-      ObProxyOrderItem *order_expr = select_stmt->order_by_exprs_.at(i);
+    for (int64_t i = 0; i < dml_stmt->order_by_exprs_.count(); i++) {
+      ObProxyOrderItem *order_expr = dml_stmt->order_by_exprs_.at(i);
       LOG_DEBUG("order by expr", K(order_expr->order_direction_));
       ObProxyExpr::print_proxy_expr(order_expr);
     }
@@ -2071,11 +2407,16 @@ int ObProxyShardUtils::handle_scan_all_real_info(ObDbConfigLogicDb &logic_db_inf
   return ret;
 }
 
-int ObProxyShardUtils::handle_select_real_info(ObDbConfigLogicDb &logic_db_info,
-                                               ObMysqlClientSession &client_session,
-                                               ObMysqlTransact::ObTransState &trans_state,
-                                               const ObString &table_name,
-                                               ObIOBufferReader &client_buffer_reader)
+int ObProxyShardUtils::handle_dml_real_info(ObDbConfigLogicDb &logic_db_info,
+                                            ObMysqlClientSession &client_session,
+                                            ObMysqlTransact::ObTransState &trans_state,
+                                            const ObString &table_name,
+                                            const ObString& sql,
+                                            ObSqlString& new_sql,
+                                            ObSqlParseResult &parse_result,
+                                            int64_t& es_index,
+                                            int64_t& group_index,
+                                            const int64_t last_es_index)
 {
   int ret = OB_SUCCESS;
 
@@ -2083,14 +2424,12 @@ int ObProxyShardUtils::handle_select_real_info(ObDbConfigLogicDb &logic_db_info,
   ObClientSessionInfo &session_info = client_session.get_session_info();
   ObShardConnector *prev_shard_conn = session_info.get_shard_connector();
 
-  ObProxyMysqlRequest &client_request = trans_state.trans_info_.client_request_;
-  ObSqlParseResult &parse_result = client_request.get_parse_result();
   SqlFieldResult &sql_result = parse_result.get_sql_filed_result();
-  ObProxySelectStmt *select_stmt = dynamic_cast<ObProxySelectStmt*>(parse_result.get_proxy_stmt());
+  ObProxyDMLStmt *dml_stmt = dynamic_cast<ObProxyDMLStmt*>(parse_result.get_proxy_stmt());
 
-  int64_t group_index = OBPROXY_MAX_DBMESH_ID;
+  group_index = OBPROXY_MAX_DBMESH_ID;
   int64_t tb_index = OBPROXY_MAX_DBMESH_ID;
-  int64_t es_index = OBPROXY_MAX_DBMESH_ID;
+  es_index = OBPROXY_MAX_DBMESH_ID;
   ObTestLoadType testload_type = TESTLOAD_NON;
   ObString hint_table;
   ObArenaAllocator allocator;
@@ -2103,22 +2442,22 @@ int ObProxyShardUtils::handle_select_real_info(ObDbConfigLogicDb &logic_db_info,
   // read request weight
   bool is_read_stmt = ObProxyShardUtils::is_read_stmt(session_info, trans_state, parse_result);
 
-  if (OB_ISNULL(select_stmt)) {
+  if (OB_ISNULL(dml_stmt)) {
     ret = OB_ERR_UNEXPECTED;
-    LOG_WARN("select stmt is null, unexpected", K(ret));
+    LOG_WARN("dml stmt is null, unexpected", K(ret));
   } else if (OB_FAIL(table_name_map.create(OB_ALIAS_TABLE_MAP_MAX_BUCKET_NUM,
                                            ObModIds::OB_HASH_ALIAS_TABLE_MAP))) {
     LOG_WARN("fail to create table name map", K(ret));
-  } else if (OB_FAIL(get_shard_hint(logic_db_info, parse_result,
+  } else if (OB_FAIL(get_shard_hint(table_name, session_info, logic_db_info, parse_result,
                                     group_index, tb_index, es_index,
                                     hint_table, testload_type))) {
     LOG_WARN("fail to get shard hint", K(ret));
   }
 
   if (OB_SUCC(ret)) {
-    ObProxySelectStmt::ExprMap &table_exprs_map = select_stmt->get_table_exprs_map();
-    ObProxySelectStmt::ExprMap::iterator iter = table_exprs_map.begin();
-    ObProxySelectStmt::ExprMap::iterator end = table_exprs_map.end();
+    ObProxyDMLStmt::ExprMap &table_exprs_map = dml_stmt->get_table_exprs_map();
+    ObProxyDMLStmt::ExprMap::iterator iter = table_exprs_map.begin();
+    ObProxyDMLStmt::ExprMap::iterator end = table_exprs_map.end();
 
     if (!hint_table.empty() && table_exprs_map.size() > 1) {
       ret = OB_ERR_MORE_TABLES_WITH_TABLE_HINT;
@@ -2127,7 +2466,7 @@ int ObProxyShardUtils::handle_select_real_info(ObDbConfigLogicDb &logic_db_info,
                                                           real_database_name, OB_MAX_DATABASE_NAME_LENGTH,
                                                           real_table_name, OB_MAX_TABLE_NAME_LENGTH,
                                                           group_index, tb_index, es_index,
-                                                          hint_table, testload_type, is_read_stmt))) {
+                                                          hint_table, testload_type, is_read_stmt, last_es_index))) {
       LOG_WARN("fail to get real info", K(table_name), K(group_index), K(tb_index),
                K(es_index), K(hint_table), K(testload_type), K(is_read_stmt), K(ret));
     } else if (OB_ISNULL(shard_conn) || OB_ISNULL(prev_shard_conn)) {
@@ -2160,8 +2499,9 @@ int ObProxyShardUtils::handle_select_real_info(ObDbConfigLogicDb &logic_db_info,
   }
 
   if (OB_SUCC(ret)) {
-    if (OB_FAIL(rewrite_shard_select_request(session_info, client_request, client_buffer_reader,
-                                             table_name_map, ObString::make_string(real_database_name), false))) {
+    if (OB_FAIL(rewrite_shard_dml_request(sql, new_sql, parse_result,
+                                          session_info.is_oracle_mode(), table_name_map,
+                                          ObString::make_string(real_database_name), false))) {
       LOG_WARN("fail to rewrite shard request", K(real_database_name), K(ret));
     }
   }
@@ -2179,6 +2519,8 @@ int ObProxyShardUtils::handle_select_real_info(ObDbConfigLogicDb &logic_db_info,
     bool is_not_saved_database = saved_database_name != logic_db_info.db_name_.config_string_;
     if (!is_not_saved_database) {
       session_info.set_group_id(group_index);
+      session_info.set_table_id(tb_index);
+      session_info.set_es_id(es_index);
     }
   }
 
@@ -2189,58 +2531,8 @@ int ObProxyShardUtils::handle_select_real_info(ObDbConfigLogicDb &logic_db_info,
   return ret;
 }
 
-int ObProxyShardUtils::handle_dml_real_info(ObDbConfigLogicDb &logic_db_info,
-                                            ObMysqlClientSession &client_session,
-                                            ObMysqlTransact::ObTransState &trans_state,
-                                            const ObString &table_name,
-                                            char *real_database_name, int64_t db_name_len,
-                                            char *real_table_name, int64_t tb_name_len)
-{
-  int ret = OB_SUCCESS;
-
-  ObShardConnector *shard_conn = NULL;
-  ObClientSessionInfo &session_info = client_session.get_session_info();
-  ObShardConnector *prev_shard_conn = session_info.get_shard_connector();
-  ObSqlParseResult &parse_result = trans_state.trans_info_.client_request_.get_parse_result();
-  int64_t group_id = OBPROXY_MAX_DBMESH_ID;
-
-  bool is_read_stmt = ObProxyShardUtils::is_read_stmt(session_info, trans_state, parse_result);
-
-  if (OB_FAIL(get_real_info(logic_db_info, table_name, parse_result, shard_conn,
-                            real_database_name, db_name_len,
-                            real_table_name, tb_name_len,
-                            &group_id, NULL, NULL, is_read_stmt))) {
-    LOG_WARN("fail to get real db and tb", K(table_name), K(ret));
-  } else if (OB_ISNULL(shard_conn) || OB_ISNULL(prev_shard_conn)) {
-    ret = OB_EXPR_CALC_ERROR;
-    LOG_WARN("shard connector info or prev shard connector info is null", KP(shard_conn),
-             KP(prev_shard_conn), K(ret));
-  }
-
-  if (OB_SUCC(ret) && *prev_shard_conn != *shard_conn) {
-    if (OB_FAIL(change_connector(logic_db_info, client_session, trans_state, prev_shard_conn, shard_conn))) {
-      LOG_WARN("fail to change connector", KPC(prev_shard_conn), KPC(shard_conn), K(ret));
-    }
-  }
-
-  //There may be a database in SQL, only the logical library saved on the session can save the group_id, and it can be reused next time
-  if (OB_SUCC(ret)) {
-    ObString saved_database_name;
-    session_info.get_logic_database_name(saved_database_name);
-    bool is_not_saved_database = saved_database_name != logic_db_info.db_name_.config_string_;
-    if (!is_not_saved_database) {
-      session_info.set_group_id(group_id);
-    }
-  }
-
-  if (NULL != shard_conn) {
-    shard_conn->dec_ref();
-    shard_conn = NULL;
-  }
-  return ret;
-}
-
-int ObProxyShardUtils::get_real_info(ObDbConfigLogicDb &logic_db_info,
+int ObProxyShardUtils::get_real_info(ObClientSessionInfo &session_info,
+                                     ObDbConfigLogicDb &logic_db_info,
                                      const ObString &table_name,
                                      ObSqlParseResult &parse_result,
                                      ObShardConnector *&shard_conn,
@@ -2255,7 +2547,7 @@ int ObProxyShardUtils::get_real_info(ObDbConfigLogicDb &logic_db_info,
   int64_t es_index = OBPROXY_MAX_DBMESH_ID;
   ObTestLoadType testload_type = TESTLOAD_NON;
   ObString hint_table;
-  if (OB_FAIL(get_shard_hint(logic_db_info, parse_result,
+  if (OB_FAIL(get_shard_hint(table_name, session_info, logic_db_info, parse_result,
               group_index, tb_index, es_index, hint_table, testload_type))) {
     LOG_WARN("fail to get shard hint", K(ret));
   } else if (OB_FAIL(logic_db_info.get_real_info(table_name, parse_result, shard_conn,
@@ -2286,6 +2578,7 @@ int ObProxyShardUtils::is_sharding_in_trans(ObClientSessionInfo &session_info, O
 {
   return 0 == session_info.get_cached_variables().get_autocommit()
          || trans_state.is_hold_start_trans_
+         || trans_state.is_hold_xa_start_
          || ObMysqlTransact::is_in_trans(trans_state);
 }
 
@@ -2409,7 +2702,7 @@ int ObProxyShardUtils::handle_sharding_select_real_info(ObDbConfigLogicDb &logic
 
   bool is_read_stmt = ObProxyShardUtils::is_read_stmt(session_info, trans_state, parse_result);
 
-  if (OB_FAIL(get_shard_hint(logic_db_info, parse_result,
+  if (OB_FAIL(get_shard_hint(table_name, session_info, logic_db_info, parse_result,
                              group_index, tb_index, es_index,
                              hint_table, testload_type))) {
     LOG_WARN("fail to get shard hint", K(ret));
diff --git a/src/obproxy/proxy/shard/obproxy_shard_utils.h b/src/obproxy/proxy/shard/obproxy_shard_utils.h
index 4cc3c5b4..78518138 100644
--- a/src/obproxy/proxy/shard/obproxy_shard_utils.h
+++ b/src/obproxy/proxy/shard/obproxy_shard_utils.h
@@ -46,12 +46,13 @@ class ObProxyShardUtils
   static int get_db_version(const ObString &logic_tenant_name,
                             const ObString &logic_database_name,
                             ObString &db_version);
-  static bool is_special_db(ObMysqlTransact::ObTransState &s);
+  static bool is_special_db(obutils::ObSqlParseResult& parse_result);
   static int get_logic_db_info(ObMysqlTransact::ObTransState &s,
                                ObClientSessionInfo &session_info,
                                dbconfig::ObDbConfigLogicDb *&logic_db_info);
 
-  static int get_real_info(dbconfig::ObDbConfigLogicDb &logic_db_info,
+  static int get_real_info(ObClientSessionInfo &session_info,
+                           dbconfig::ObDbConfigLogicDb &logic_db_info,
                            const common::ObString &table_name,
                            obutils::ObSqlParseResult &parse_result,
                            dbconfig::ObShardConnector *&shard_conn,
@@ -64,33 +65,62 @@ class ObProxyShardUtils
   static bool check_shard_authority(const dbconfig::ObShardUserPrivInfo &up_info,
                                     const obutils::ObSqlParseResult &parse_result);
 
-  static int get_shard_hint(dbconfig::ObDbConfigLogicDb &logic_db_info,
+  static int get_shard_hint(const ObString &table_name,
+                            ObClientSessionInfo &session_info,
+                            dbconfig::ObDbConfigLogicDb &logic_db_info,
                             obutils::ObSqlParseResult &parse_result,
                             int64_t &group_index, int64_t &tb_index,
-                            int64_t &es_index, ObString &table_name,
+                            int64_t &es_index, ObString &hint_table_name,
                             dbconfig::ObTestLoadType &testload_type);
 
+  static int get_shard_hint(dbconfig::ObDbConfigLogicDb &logic_db_info,
+                            obutils::ObSqlParseResult &parse_result,
+                            int64_t &group_index, int64_t &tb_index,
+                            int64_t &es_index, ObString &hint_table_name,
+                            dbconfig::ObTestLoadType &testload_type,
+                            bool &is_sticky_session);
+
   static int check_shard_request(ObMysqlClientSession &client_session,
                                  obutils::ObSqlParseResult &parse_result,
                                  dbconfig::ObDbConfigLogicDb &logic_db_info);
-  static int handle_shard_request(ObMysqlSM *sm,
-             ObMysqlClientSession &client_session,
-             ObMysqlTransact::ObTransState &trans_state,
-             ObIOBufferReader &client_buffer_reader,
-             dbconfig::ObDbConfigLogicDb &db_info,
-             bool &need_wait_callback);
+  static int do_handle_shard_request(ObMysqlClientSession &client_session,
+                                     ObMysqlTransact::ObTransState &trans_state,
+                                     dbconfig::ObDbConfigLogicDb &db_info,
+                                     const ObString& sql,
+                                     ObSqlString& new_sql,
+                                     obutils::ObSqlParseResult &parse_result,
+                                     int64_t& es_index,
+                                     int64_t& group_index,
+                                     const int64_t last_es_index,
+                                     bool& is_scan_all);                      
+  static int handle_shard_request(ObMysqlClientSession &client_session,
+                                  ObMysqlTransact::ObTransState &trans_state,
+                                  ObIOBufferReader &client_buffer_reader,
+                                  dbconfig::ObDbConfigLogicDb &db_info);
+  static int handle_ddl_request(ObMysqlSM *sm,
+                                ObMysqlClientSession &client_session,
+                                ObMysqlTransact::ObTransState &trans_state,
+                                dbconfig::ObDbConfigLogicDb &db_info,
+                                bool &need_wait_callback);
   static int do_handle_single_shard_request(ObMysqlClientSession &client_session,
                                             ObMysqlTransact::ObTransState &trans_state,
-                                            ObIOBufferReader &client_buffer_reader,
-                                            dbconfig::ObDbConfigLogicDb &logic_db_info);
-  static int handle_single_shard_request(ObMysqlSM *sm,
-                                         ObMysqlClientSession &client_session,
+                                            dbconfig::ObDbConfigLogicDb &logic_db_info,
+                                            const ObString& sql,
+                                            ObSqlString& new_sql,
+                                            obutils::ObSqlParseResult &parse_result,
+                                            int64_t& es_index,
+                                            int64_t& group_index,
+                                            const int64_t last_es_index);
+  static int handle_single_shard_request(ObMysqlClientSession &client_session,
                                          ObMysqlTransact::ObTransState &trans_state,
                                          ObIOBufferReader &client_buffer_reader,
-                                         dbconfig::ObDbConfigLogicDb &logic_db_info,
-                                         bool &need_wait_callback);
-  static int build_error_packet(int err_code, bool &need_response_for_dml, ObMysqlTransact::ObTransState &trans_state,
+                                         dbconfig::ObDbConfigLogicDb &logic_db_info);
+  static int build_error_packet(int err_code, bool &need_response_for_dml,
+                                ObMysqlTransact::ObTransState &trans_state,
                                 ObMysqlClientSession *client_session);
+  static int handle_information_schema_request(ObMysqlClientSession &client_session,
+                                               ObMysqlTransact::ObTransState &trans_state,
+                                               ObIOBufferReader &client_buffer_reader);
 
   static int handle_sharding_select_real_info(dbconfig::ObDbConfigLogicDb &logic_db_info,
                                   ObMysqlClientSession &client_session,
@@ -108,13 +138,13 @@ class ObProxyShardUtils
   static int check_topology(obutils::ObSqlParseResult &parse_result,
                             dbconfig::ObDbConfigLogicDb &db_info);
 
-  static int do_rewrite_shard_select_request(const ObString &sql,
-                                             obutils::ObSqlParseResult &parse_result,
-                                             bool is_oracle_mode,
-                                             const common::hash::ObHashMap<ObString, ObString> &table_name_map,
-                                             const ObString &real_database_name,
-                                             bool is_single_shard_db_table,
-                                             common::ObSqlString &new_sql);
+  static int rewrite_shard_dml_request(const ObString &sql,
+                                       ObSqlString &new_sql,
+                                       obutils::ObSqlParseResult &parse_result,
+                                       bool is_oracle_mode,
+                                       const common::hash::ObHashMap<ObString, ObString> &table_name_map,
+                                       const ObString &real_database_name,
+                                       bool is_single_shard_db_table);
   static int add_table_name_to_map(ObIAllocator &allocator,
                                    hash::ObHashMap<ObString, ObString> &table_name_map,
                                    const ObString &table_name, const ObString &real_table_name);
@@ -123,32 +153,42 @@ class ObProxyShardUtils
   static bool is_read_stmt(ObClientSessionInfo &session_info,
                            ObMysqlTransact::ObTransState &trans_state,
                            obutils::ObSqlParseResult &parse_result);
+  static bool is_unsupport_type_in_multi_stmt(obutils::ObSqlParseResult& parse_result);
   static int change_connector(dbconfig::ObDbConfigLogicDb &logic_db_info,
                               ObMysqlClientSession &client_session,
                               ObMysqlTransact::ObTransState &trans_state,
                               const dbconfig::ObShardConnector *prev_shard_conn,
                               dbconfig::ObShardConnector *shard_conn);
-
-  static int handle_ddl_request(ObMysqlSM *sm,
-                                ObMysqlClientSession &client_session,
-                                ObMysqlTransact::ObTransState &trans_state,
-                                dbconfig::ObDbConfigLogicDb &db_info,
-                                bool &need_wait_callback);
   static int handle_dml_request(ObMysqlClientSession &client_session,
                                 ObMysqlTransact::ObTransState &trans_state,
-                                ObIOBufferReader &client_buffer_reader,
-                                const common::ObString &table_name,
-                                dbconfig::ObDbConfigLogicDb &db_info);
+                                const ObString &table_name,
+                                dbconfig::ObDbConfigLogicDb &db_info,
+                                const ObString& sql,
+                                ObSqlString& new_sql,
+                                obutils::ObSqlParseResult &parse_result,
+                                int64_t& es_index,
+                                int64_t& group_index,
+                                const int64_t last_es_index);
   static int handle_other_request(ObMysqlClientSession &client_session,
                                   ObMysqlTransact::ObTransState &trans_state,
-                                  ObIOBufferReader &client_buffer_reader,
-                                  const common::ObString &table_name,
-                                  dbconfig::ObDbConfigLogicDb &db_info);
+                                  const ObString &table_name,
+                                  dbconfig::ObDbConfigLogicDb &db_info,
+                                  const ObString& sql,
+                                  ObSqlString& new_sql,
+                                  obutils::ObSqlParseResult &parse_result,
+                                  int64_t& es_index,
+                                  int64_t& group_index);
   static int handle_select_request(ObMysqlClientSession &client_session,
                                    ObMysqlTransact::ObTransState &trans_state,
-                                   ObIOBufferReader &client_buffer_reader,
-                                   const common::ObString &table_name,
-                                   dbconfig::ObDbConfigLogicDb &db_info);
+                                   const ObString &table_name,
+                                   dbconfig::ObDbConfigLogicDb &db_info,
+                                   const ObString& sql,
+                                   ObSqlString& new_sql,
+                                   obutils::ObSqlParseResult &parse_result,
+                                   int64_t& es_index,
+                                   int64_t& group_index,
+                                   const int64_t last_es_index,
+                                   bool& is_scan_all);
   static int check_logic_database(ObMysqlTransact::ObTransState &trans_state,
                                   ObMysqlClientSession &client_session, const ObString &db_name);
   static void replace_oracle_table(ObSqlString &new_sql, const ObString &real_name,
@@ -164,21 +204,21 @@ class ObProxyShardUtils
                                          const ObString &real_table_name, const ObString &real_database_name,
                                          bool is_oracle_mode, bool is_single_shard_db_table,
                                          ObSqlString &new_sql, int64_t &copy_pos);
+  static int rewrite_shard_request_table_no_db(const char *sql_ptr,
+                                               int64_t table_pos, uint64_t table_len,
+                                               const ObString &real_table_name,
+                                               bool is_oracle_mode, bool is_single_shard_db_table,
+                                               ObSqlString &new_sql, int64_t &copy_pos);
   static int rewrite_shard_request_hint_table(const char *sql_ptr, int64_t index_table_pos, uint64_t index_table_len,
                                               const ObString &real_table_name, bool is_oracle_mode,
                                               bool is_single_shard_db_table, ObSqlString &new_sql, int64_t &copy_pos);
   static int rewrite_shard_request(ObClientSessionInfo &session_info,
-                                   ObProxyMysqlRequest &client_request,
-                                   ObIOBufferReader &client_buffer_reader,
+                                   obutils::ObSqlParseResult &parse_result,
                                    const ObString &table_name, const ObString &database_name,
                                    const ObString &real_table_name, const ObString &real_database_name,
-                                   bool is_single_shard_db_table);
-  static int rewrite_shard_select_request(ObClientSessionInfo &session_info,
-                                          ObProxyMysqlRequest &client_request,
-                                          ObIOBufferReader &client_buffer_reader,
-                                          const common::hash::ObHashMap<ObString, ObString> &table_name_map,
-                                          const ObString &real_database_name,
-                                          bool is_single_shard_db_table);
+                                   bool is_single_shard_db_table,
+                                   const ObString& sql,
+                                   common::ObSqlString& new_sql);
   static int testload_check_obparser_node_is_valid(const ParseNode *root, const ObItemType &type);
   static int testload_rewrite_name_base_on_parser_node(common::ObSqlString &new_sql,
                                    const char *new_name,
@@ -189,13 +229,13 @@ class ObProxyShardUtils
   static int testload_get_obparser_db_and_table_node(const ParseNode *root,
                                    ParseNode *&db_node,
                                    ParseNode *&table_node);
-  static int testload_check_and_rewrite_testload_request(ObClientSessionInfo &session_info,
-                                   ObProxyMysqlRequest &client_request,
-                                   ObIOBufferReader &client_buffer_reader,
+  static int testload_check_and_rewrite_testload_request(obutils::ObSqlParseResult &parse_result,
                                    bool is_single_shard_db_table,
                                    const ObString &hint_table,
                                    const ObString &real_database_name,
-                                   dbconfig::ObDbConfigLogicDb &logic_db_info);
+                                   dbconfig::ObDbConfigLogicDb &logic_db_info,
+                                   const ObString& sql,
+                                   common::ObSqlString& new_sql);
   static int testload_check_and_rewrite_testload_hint_index(common::ObSqlString &new_sql,
                                                    const char *sql_ptr,
                                                    int64_t sql_len,
@@ -215,27 +255,33 @@ class ObProxyShardUtils
                                     ObMysqlTransact::ObTransState &trans_state,
                                     const ObString &table_name,
                                     char *real_database_name, int64_t db_name_len,
-                                    char *real_table_name, int64_t tb_name_len);
-  static int handle_dml_real_info(dbconfig::ObDbConfigLogicDb &logic_db_info,
-                                  ObMysqlClientSession &client_session,
-                                  ObMysqlTransact::ObTransState &trans_state,
-                                  const ObString &table_name,
-                                  char *real_database_name, int64_t db_name_len,
-                                  char *real_table_name, int64_t tb_name_len);
+                                    char *real_table_name, int64_t tb_name_len,
+                                    obutils::ObSqlParseResult &parse_result,
+                                    int64_t& es_index,
+                                    int64_t& group_index);
   static int handle_scan_all_real_info(dbconfig::ObDbConfigLogicDb &logic_db_info,
                                        ObMysqlClientSession &client_session,
                                        ObMysqlTransact::ObTransState &trans_state,
                                        const ObString &table_name);
-  static int handle_select_real_info(dbconfig::ObDbConfigLogicDb &logic_db_info,
-                                     ObMysqlClientSession &client_session,
-                                     ObMysqlTransact::ObTransState &trans_state,
-                                     const ObString &table_name,
-                                     ObIOBufferReader &client_buffer_reader);
+  static int handle_dml_real_info(dbconfig::ObDbConfigLogicDb &logic_db_info,
+                                  ObMysqlClientSession &client_session,
+                                  ObMysqlTransact::ObTransState &trans_state,
+                                  const ObString &table_name,
+                                  const ObString& sql,
+                                  ObSqlString& new_sql,
+                                  obutils::ObSqlParseResult &parse_result,
+                                  int64_t& es_index,
+                                  int64_t& group_index,
+                                  const int64_t last_es_index);
   static int handle_sys_read_consitency_prop(dbconfig::ObDbConfigLogicDb &logic_db_info,
                                              dbconfig::ObShardConnector& shard_conn,
                                              ObClientSessionInfo &session_info);
   static int is_sharding_in_trans(ObClientSessionInfo &session_info,
                                   ObMysqlTransact::ObTransState &trans_state);
+  static int build_shard_request_packet(ObClientSessionInfo &session_info,
+                                        ObProxyMysqlRequest &client_request,
+                                        ObIOBufferReader &client_buffer_reader,
+                                        const ObString& sql);
 };
 
 
diff --git a/src/obproxy/stat/ob_mysql_stats.cpp b/src/obproxy/stat/ob_mysql_stats.cpp
index 0b096d7a..eb8161e6 100644
--- a/src/obproxy/stat/ob_mysql_stats.cpp
+++ b/src/obproxy/stat/ob_mysql_stats.cpp
@@ -272,6 +272,9 @@ int init_mysql_stats()
     MYSQL_REGISTER_RAW_STAT(mysql_rsb, RECT_PROCESS, "send_changed_session_vars_requests",
                             RECD_INT, SEND_CHANGED_SESSION_VARS_REQUESTS, SYNC_SUM, RECP_NULL);
 
+    MYSQL_REGISTER_RAW_STAT(mysql_rsb, RECT_PROCESS, "send_changed_session_user_vars_requests",
+                            RECD_INT, SEND_CHANGED_SESSION_USER_VARS_REQUESTS, SYNC_SUM, RECP_NULL);
+
     MYSQL_REGISTER_RAW_STAT(mysql_rsb, RECT_PROCESS, "send_last_insert_id_requests",
                             RECD_INT, SEND_LAST_INSERT_ID_REQUESTS, SYNC_SUM, RECP_PERSISTENT);
 
@@ -334,6 +337,9 @@ int init_mysql_stats()
     MYSQL_REGISTER_RAW_STAT(mysql_rsb, RECT_PROCESS, "total_send_changed_session_vars_time",
                             RECD_INT, TOTAL_SEND_CHANGED_SESSION_VARS_TIME, SYNC_SUM, RECP_NULL);
 
+    MYSQL_REGISTER_RAW_STAT(mysql_rsb, RECT_PROCESS, "total_send_changed_session_user_vars_time",
+                            RECD_INT, TOTAL_SEND_CHANGED_SESSION_USER_VARS_TIME, SYNC_SUM, RECP_NULL);
+
     MYSQL_REGISTER_RAW_STAT(mysql_rsb, RECT_PROCESS, "total_send_last_insert_id_time",
                             RECD_INT, TOTAL_SEND_LAST_INSERT_ID_TIME, SYNC_SUM, RECP_NULL);
 
diff --git a/src/obproxy/stat/ob_mysql_stats.h b/src/obproxy/stat/ob_mysql_stats.h
index 99c6b17a..6dd86796 100644
--- a/src/obproxy/stat/ob_mysql_stats.h
+++ b/src/obproxy/stat/ob_mysql_stats.h
@@ -60,8 +60,10 @@ enum ObMysqlStats
   TOTAL_SEND_ALL_SESSION_VARS_TIME,
   TOTAL_SEND_USE_DATABASE_TIME,
   TOTAL_SEND_CHANGED_SESSION_VARS_TIME,
+  TOTAL_SEND_CHANGED_SESSION_USER_VARS_TIME,
   TOTAL_SEND_LAST_INSERT_ID_TIME,
   TOTAL_SEND_START_TRANS_TIME,
+  TOTAL_SEND_XA_START_TIME,
 
   TOTAL_PL_LOOKUP_TIME,
   TOTAL_CONGESTION_CONTROL_LOOKUP_TIME,
@@ -132,8 +134,10 @@ enum ObMysqlStats
   SEND_ALL_SESSION_VARS_REQUESTS,
   SEND_USE_DATABASE_REQUESTS,
   SEND_CHANGED_SESSION_VARS_REQUESTS,
+  SEND_CHANGED_SESSION_USER_VARS_REQUESTS,
   SEND_LAST_INSERT_ID_REQUESTS,
   SEND_START_TRANS_REQUESTS,
+  SEND_XA_START_REQUESTS,
 
   VIP_TO_TENANT_CACHE_HIT,
   VIP_TO_TENANT_CACHE_MISS,
diff --git a/src/obproxy/stat/ob_stat_processor.cpp b/src/obproxy/stat/ob_stat_processor.cpp
index da5da868..f1341f36 100644
--- a/src/obproxy/stat/ob_stat_processor.cpp
+++ b/src/obproxy/stat/ob_stat_processor.cpp
@@ -92,7 +92,7 @@ int ObSessionStatTableSync::init(ObMysqlProxy &mysql_proxy, const char *cluster_
 {
   int ret = OB_SUCCESS;
   ObAddr addr;
-  char ip_str[OB_IP_STR_BUFF];
+  char ip_str[MAX_IP_ADDR_LENGTH];
   ip_str[0] = '\0';
 
   if (OB_ISNULL(cluster_name)
@@ -101,7 +101,7 @@ int ObSessionStatTableSync::init(ObMysqlProxy &mysql_proxy, const char *cluster_
     LOG_WARN("invalid parameter", K(cluster_name), K(stats), K(stat_names), K(ret));
   } else if (OB_FAIL(ObProxyTableProcessorUtils::get_proxy_local_addr(addr))) {
     LOG_WARN("fail to get proxy local addr", K(addr), K(ret));
-  } else if (!addr.ip_to_string(ip_str, OB_IP_STR_BUFF)) {
+  } else if (!addr.ip_to_string(ip_str, MAX_IP_ADDR_LENGTH)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("fail to covert ip to string", K(addr), K(ret));
   } else if (OB_FAIL(sql_.append_fmt(ObStatProcessor::INSERT_PROXY_STAT_SQL_HEAD,
diff --git a/src/obproxy/stat/ob_stat_processor.h b/src/obproxy/stat/ob_stat_processor.h
index 7d90c9ad..c5d39815 100644
--- a/src/obproxy/stat/ob_stat_processor.h
+++ b/src/obproxy/stat/ob_stat_processor.h
@@ -586,7 +586,7 @@ class ObStatProcessor
 
   ASLL(ObRecRawStatBlock, link_) all_blocks_;
 
-  char proxy_ip_[common::OB_IP_STR_BUFF]; // ip primary key
+  char proxy_ip_[common::MAX_IP_ADDR_LENGTH]; // ip primary key
   int32_t proxy_port_;                    // port primary key
   DISALLOW_COPY_AND_ASSIGN(ObStatProcessor);
 };
diff --git a/src/obproxy/utils/Makemodule.am b/src/obproxy/utils/Makemodule.am
index 747c6051..72841d3f 100644
--- a/src/obproxy/utils/Makemodule.am
+++ b/src/obproxy/utils/Makemodule.am
@@ -23,6 +23,8 @@ obproxy/utils/ob_cpu_affinity.cpp\
 obproxy/utils/ob_proxy_blowfish.h\
 obproxy/utils/ob_proxy_blowfish.cpp\
 obproxy/utils/ob_proxy_monitor_utils.h\
-obproxy/utils/ob_proxy_monitor_utils.cpp
+obproxy/utils/ob_proxy_monitor_utils.cpp\
+obproxy/utils/ob_target_db_server.h\
+obproxy/utils/ob_target_db_server.cpp
 
 utils_sources:= ${utils_common_sources}
diff --git a/src/obproxy/utils/ob_layout.cpp b/src/obproxy/utils/ob_layout.cpp
index d022801f..a1be2ef8 100644
--- a/src/obproxy/utils/ob_layout.cpp
+++ b/src/obproxy/utils/ob_layout.cpp
@@ -11,8 +11,11 @@
  */
 
 #define USING_LOG_PREFIX PROXY
-#include "utils/ob_layout.h"
 #include <unistd.h>
+#include "utils/ob_layout.h"
+#include "ob_proxy_init.h"
+
+#define UNIX_PATH_LENGTH_MAX (sizeof(struct sockaddr_un) - sizeof(sa_family_t))
 
 using namespace oceanbase::common;
 using namespace oceanbase::obproxy::event;
@@ -22,6 +25,9 @@ namespace oceanbase
 namespace obproxy
 {
 
+static const char* obproxy_domain = "obproxy.domain";
+static const char* obproxy_dir = "./.obproxy";
+
 ObLayout &get_global_layout()
 {
   static ObLayout g_layout;
@@ -30,7 +36,8 @@ ObLayout &get_global_layout()
 
 ObLayout::ObLayout()
     : is_inited_(false), prefix_(NULL), bin_dir_(NULL), etc_dir_(NULL),
-      log_dir_(NULL), conf_dir_(NULL), control_config_dir_(NULL), dbconfig_dir_(NULL)
+      log_dir_(NULL), conf_dir_(NULL), control_config_dir_(NULL),
+      dbconfig_dir_(NULL), unix_domain_path_(NULL)
 {
 }
 
@@ -60,6 +67,8 @@ int ObLayout::init(const char *start_cmd)
     MPRINT("fail to init proxy bin dir, ret=%d", ret);
   } else if (OB_FAIL(init_dir_prefix(cwd))) {
     MPRINT("fail to init proxy dir prefix, ret=%d", ret);
+  } else if (RUN_MODE_CLIENT == g_run_mode && OB_FAIL(handle_client_dirs())) {
+    MPRINT("fail to construct client dirs, ret=%d", ret);
   } else if (OB_FAIL(construct_dirs())) {
     MPRINT("fail to construct dirs, ret=%d", ret);
   } else {
@@ -168,6 +177,42 @@ int ObLayout::init_bin_dir(const char *cwd, const char *start_cmd)
 }
 
 int ObLayout::init_dir_prefix(const char *cwd)
+{
+  int ret = OB_SUCCESS;
+  if (RUN_MODE_PROXY == g_run_mode) {
+    if (OB_FAIL(init_dir_prefix_proxy_mode(cwd))) {
+      LOG_WARN("init dir prefix proxy mode failed", K(ret));
+    }
+  } else if (RUN_MODE_CLIENT == g_run_mode) {
+    if (OB_FAIL(init_dir_prefix_client_mode())) {
+      LOG_WARN("init_dir_prefix_client_mode", K(ret));
+    }
+  }
+
+  return ret;
+}
+
+int ObLayout::init_dir_prefix_client_mode()
+{
+  int ret = OB_SUCCESS;
+  int64_t prefix_len = 0;
+
+  prefix_len = strlen(obproxy_dir);
+
+  if (OB_SUCC(ret)) {
+    if (OB_ISNULL(prefix_ = static_cast<char *>(allocator_.alloc(prefix_len + 1)))) {
+      ret = OB_ALLOCATE_MEMORY_FAILED;
+      MPRINT("fail to alloc memeory, prefix_len=%ld, ret=%d", prefix_len, ret);
+    } else {
+      MEMCPY(prefix_, obproxy_dir, prefix_len);
+      prefix_[prefix_len] = '\0';
+    }
+  }
+
+  return ret;
+}
+
+int ObLayout::init_dir_prefix_proxy_mode(const char *cwd)
 {
   int ret = OB_SUCCESS;
   char *env_path = NULL;
@@ -290,5 +335,56 @@ int ObLayout::construct_single_dir(const char *sub_dir, char *&full_path)
   return ret;
 }
 
+int ObLayout::handle_client_dirs()
+{
+  int ret = OB_SUCCESS;
+  if (OB_FAIL(construct_client_obproxy_dirs())) {
+    LOG_WARN("construct_client_obproxy_dirs failed", K(ret));
+  } else if (OB_FAIL(remove_unix_domain())) {
+    LOG_WARN("remove unix domain failed", K(ret));
+  }
+
+  return ret;
+}
+
+int ObLayout::construct_client_obproxy_dirs()
+{
+  int ret = OB_SUCCESS;
+  char *actual_path = NULL;
+  // Create the .obproxy directory
+  if (OB_FAIL(extract_actual_path(prefix_, actual_path))) {
+    MPRINT("fail to extract_actual_path, prefix_path=%s, ret=%d", prefix_, ret);
+  } else if (OB_FAIL(FileDirectoryUtils::create_full_path(actual_path))) {
+    MPRINT("fail to create_full_path, actual_path=%s, ret=%d", actual_path, ret);
+  }
+
+  if (NULL != actual_path && prefix_ != actual_path) {
+    allocator_.free(actual_path);
+  }
+  actual_path = NULL;
+
+
+  return ret;
+}
+
+int ObLayout::remove_unix_domain()
+{
+  int ret = OB_SUCCESS;
+  char *actual_path = NULL;
+
+  if (OB_FAIL(merge_file_path(prefix_, obproxy_domain, allocator_, unix_domain_path_))) {
+    MPRINT("fail to merge file path, sub_dir=%s, ret=%d", obproxy_domain, ret);
+  } else if (OB_FAIL(extract_actual_path(unix_domain_path_, actual_path))) {
+    MPRINT("fail to extract_actual_path, full_path=%s, ret=%d", unix_domain_path_, ret);
+  } else {
+    remove(actual_path);
+    if (NULL != actual_path && unix_domain_path_ != actual_path) {
+      allocator_.free(actual_path);
+    }
+    actual_path = NULL;
+  }
+  return ret;
+}
+
 }//end of namespace obproxy
 }//end of namespace oceanbase
diff --git a/src/obproxy/utils/ob_layout.h b/src/obproxy/utils/ob_layout.h
index beb15a3c..527a97f9 100644
--- a/src/obproxy/utils/ob_layout.h
+++ b/src/obproxy/utils/ob_layout.h
@@ -36,14 +36,20 @@ class ObLayout
   const char *get_control_config_dir() const { return control_config_dir_; }
   const char *get_dbconfig_dir() const { return dbconfig_dir_; }
   const char *get_proxy_root_dir() const { return prefix_; }
+  const char *get_unix_domain_path() const { return unix_domain_path_; }
   static int merge_file_path(const char *root, const char *file, common::ObIAllocator &allocator, char *&buf);
 
 private:
   int init_bin_dir(const char *cwd, const char *start_cmd);
   int init_dir_prefix(const char *cwd);
+  int init_dir_prefix_proxy_mode(const char *cwd);
+  int init_dir_prefix_client_mode();
   int construct_dirs();
   int construct_single_dir(const char *sub_dir, char *&full_path);
   int extract_actual_path(const char * const full_path, char *&actual_path);
+  int handle_client_dirs();
+  int construct_client_obproxy_dirs();
+  int remove_unix_domain();
 
 private:
   bool is_inited_;
@@ -54,6 +60,7 @@ class ObLayout
   char *conf_dir_;
   char *control_config_dir_;
   char *dbconfig_dir_;
+  char *unix_domain_path_;
   event::ObFixedArenaAllocator<ObLayout::MAX_PATH_LENGTH> allocator_;
 };
 
diff --git a/src/obproxy/utils/ob_proxy_hot_upgrader.cpp b/src/obproxy/utils/ob_proxy_hot_upgrader.cpp
index 98fb1e94..600e9751 100644
--- a/src/obproxy/utils/ob_proxy_hot_upgrader.cpp
+++ b/src/obproxy/utils/ob_proxy_hot_upgrader.cpp
@@ -14,6 +14,7 @@
 
 #include "utils/ob_proxy_hot_upgrader.h"
 #include "iocore/eventsystem/ob_event_processor.h"
+#include "ob_proxy_init.h"
 
 using namespace oceanbase::common;
 using namespace oceanbase::obproxy::event;
@@ -28,7 +29,8 @@ ObHotUpgraderInfo g_hot_upgrade_info;
 
 void ObHotUpgraderInfo::reset()
 {
-  fd_ = OB_INVALID_INDEX;
+  ipv4_fd_ = OB_INVALID_INDEX;
+  ipv6_fd_ = OB_INVALID_INDEX;
   received_sig_ = OB_INVALID_INDEX;
   sub_pid_ = OB_INVALID_INDEX;
   rc_status_ = RCS_NONE;
@@ -67,9 +69,9 @@ DEF_TO_STRING(ObHotUpgraderInfo)
 {
   int64_t pos = 0;
   J_OBJ_START();
-  J_KV(K_(is_inherited), K_(upgrade_version), K_(need_conn_accept), K_(user_rejected), K_(fd),
-       K_(received_sig), K_(sub_pid), K_(graceful_exit_end_time), K_(graceful_exit_start_time),
-       K_(active_client_vc_count), K_(local_addr),
+  J_KV(K_(is_inherited), K_(upgrade_version), K_(need_conn_accept), K_(user_rejected), K_(ipv4_fd),
+       K_(ipv6_fd), K_(received_sig), K_(sub_pid), K_(graceful_exit_end_time),
+       K_(graceful_exit_start_time), K_(active_client_vc_count), K_(local_addr),
        "rc_status", get_rc_status_string(rc_status_),
        "hu_cmd", get_cmd_string(cmd_),
        "state", get_state_string(state_),
diff --git a/src/obproxy/utils/ob_proxy_hot_upgrader.h b/src/obproxy/utils/ob_proxy_hot_upgrader.h
index 95398a39..cbc14887 100644
--- a/src/obproxy/utils/ob_proxy_hot_upgrader.h
+++ b/src/obproxy/utils/ob_proxy_hot_upgrader.h
@@ -20,7 +20,8 @@ namespace oceanbase
 {
 namespace obproxy
 {
-#define OBPROXY_INHERITED_FD "OBPROXY_INHERITED_FD"
+#define OBPROXY_INHERITED_IPV4_FD "OBPROXY_INHERITED_FD"
+#define OBPROXY_INHERITED_IPV6_FD "OBPROXY_INHERITED_IPV6_FD"
 extern volatile int g_proxy_fatal_errcode;
 
 enum ObReloadConfigStatus
@@ -196,7 +197,8 @@ class ObHotUpgraderInfo
   static const int64_t MAX_RESTART_BUF_SIZE = 64;
   static const int64_t OB_MAX_INHERITED_ARGC = 4;
 
-  int fd_;                              // listen fd, which to be passed to sub process
+  int ipv4_fd_;                              // listen fd, which to be passed to sub process
+  int ipv6_fd_;
   int received_sig_;
   ObReloadConfigStatus rc_status_;      // identify the current status for reload config
   volatile pid_t sub_pid_;              // sub process pid if fork succeed
diff --git a/src/obproxy/utils/ob_proxy_lib.h b/src/obproxy/utils/ob_proxy_lib.h
index 01af9b92..98768673 100644
--- a/src/obproxy/utils/ob_proxy_lib.h
+++ b/src/obproxy/utils/ob_proxy_lib.h
@@ -200,6 +200,7 @@ static const uint64_t OBPROXY_DEFAULT_CAPABILITY_FLAG =
      | OB_CAP_PROXY_SESSION_SYNC
      | OB_CAP_PROXY_FULL_LINK_TRACING
      | OB_CAP_PROXY_NEW_EXTRA_INFO
+     | OB_CAP_PROXY_SESSION_VAR_SYNC
     );
 
 #define OBPROXY_SYS_ERRNO_START -10000
diff --git a/src/obproxy/utils/ob_proxy_table_define.cpp b/src/obproxy/utils/ob_proxy_table_define.cpp
index e98d559c..4cd0107f 100644
--- a/src/obproxy/utils/ob_proxy_table_define.cpp
+++ b/src/obproxy/utils/ob_proxy_table_define.cpp
@@ -98,11 +98,15 @@ const char *ObProxyTableInfo::PROXY_VIP_TENANT_VERSION_NAME                 = "o
 const char *ObProxyTableInfo::READ_ONLY_USERNAME_USER                       = "proxyro";
 const char *ObProxyTableInfo::READ_ONLY_USERNAME                            = "proxyro@sys";
 const char *ObProxyTableInfo::READ_ONLY_DATABASE                            = "oceanbase";
+const char *ObProxyTableInfo::OBSERVER_SYS_PASSWORD                         = "observer_sys_password";
+const char *ObProxyTableInfo::OBSERVER_SYS_PASSWORD1                        = "observer_sys_password1";
 
 const char *ObProxyTableInfo::TEST_MODE_USERNAME                            = "root@sys";
 const char *ObProxyTableInfo::TEST_MODE_PASSWORD                            = "";
 const char *ObProxyTableInfo::TEST_MODE_DATABASE                            = "oceanbase";
 
+const char *ObProxyTableInfo::DETECT_USERNAME_USER                          = "detect_user";
+
 const ObString ObProxyTableInfo::PROXY_ALL_PROXY_HEADER                     = ObString::make_string("all_proxy");
 const ObString ObProxyTableInfo::PROXY_CONFIG_VERSION_NAME                  = ObString::make_string(".config_version");
 const ObString ObProxyTableInfo::PROXY_UPGRADE_SWITCH_NAME                  = ObString::make_string(".upgrade_switch");
@@ -132,7 +136,7 @@ int ObProxyTableInfo::get_create_proxy_table_sql(char *buf, const int64_t len)
   } else {
     int64_t w_len = snprintf(buf, len, CREATE_PROXY_TABLE_SQL,
                              PROXY_INFO_TABLE_NAME,
-                             OB_IP_STR_BUFF,                         // ip
+                             MAX_IP_ADDR_LENGTH,                         // ip
                              OB_MAX_APP_NAME_LENGTH,                 // app_name
                              OB_MAX_PROXY_BINARY_VERSION_LEN,        // binary_version
                              OB_MAX_UNAME_INFO_LEN,                  // system_info
@@ -239,7 +243,7 @@ int ObProxyTableInfo::get_create_proxy_vip_tenant_table_sql(char *buf, const int
   } else {
     int64_t w_len = snprintf(buf, len, CREATE_PROXY_VIP_TENANT_TABLE_SQL,
                              PROXY_VIP_TENANT_TABLE_NAME,           // table name
-                             OB_IP_STR_BUFF,                        // vip
+                             MAX_IP_ADDR_LENGTH,                        // vip
                              OB_MAX_TENANT_NAME_LENGTH,             // tenant_name length
                              OB_PROXY_MAX_CLUSTER_NAME_LENGTH,      // cluster_name length
                              OB_MAX_CONFIG_INFO_LEN                 // info length
diff --git a/src/obproxy/utils/ob_proxy_table_define.h b/src/obproxy/utils/ob_proxy_table_define.h
index f7691560..b0cfab63 100644
--- a/src/obproxy/utils/ob_proxy_table_define.h
+++ b/src/obproxy/utils/ob_proxy_table_define.h
@@ -67,10 +67,16 @@ class ObProxyTableInfo
   static const char *READ_ONLY_USERNAME_USER;
   static const char *READ_ONLY_USERNAME;
   static const char *READ_ONLY_DATABASE;
+  static const char *READ_ONLY_PASSWD_STAGED1;
+
+  static const char *OBSERVER_SYS_PASSWORD;
+  static const char *OBSERVER_SYS_PASSWORD1;
 
   static const char *TEST_MODE_USERNAME;
   static const char *TEST_MODE_PASSWORD;
   static const char *TEST_MODE_DATABASE;
+
+  static const char *DETECT_USERNAME_USER;
 };
 
 } // end of namespace obproxy
diff --git a/src/obproxy/utils/ob_proxy_utils.cpp b/src/obproxy/utils/ob_proxy_utils.cpp
index b4e624e1..615bac67 100644
--- a/src/obproxy/utils/ob_proxy_utils.cpp
+++ b/src/obproxy/utils/ob_proxy_utils.cpp
@@ -344,5 +344,39 @@ int paste_tenant_and_cluster_name(const ObString &tenant_name, const ObString &c
   return ret;
 }
 
+// split str like 'val0,val1;val2;val3' to
+// item:    val0  val1  val2  val3
+// weight:    0     0     1     2
+int split_weight_group(ObString weight_group_str, 
+                       ObIArray<ObString> &items, 
+                       ObIArray<int8_t> &weights) {
+  int ret = OB_SUCCESS;
+  int8_t weight = 0;
+  bool finish = false;
+  while (OB_SUCC(ret) && !weight_group_str.empty() && !finish) {
+    ObString group = weight_group_str.split_on(';');
+    if (group.empty()) {
+      group = weight_group_str;
+      finish = true;
+    }
+    // split by ',' 
+    bool group_finish = false;
+    while (OB_SUCC(ret) && !group.empty() && !group_finish) {
+      ObString item = group.split_on(',');
+      if (item.empty()) {
+        item = group;
+        group_finish = true;
+      }
+      if (OB_FAIL(items.push_back(item))) {
+        LOG_WARN("fail to push back item", K(item), K(ret));
+      } else if (OB_FAIL(weights.push_back(weight))) {
+        LOG_WARN("fail to push back weight", K(weight), K(ret));
+      } else { /* succ */}
+    }
+    weight++; 
+  }
+  return ret;
+}
+
 } // end of namespace obproxy
 } // end of namespace oceanbase
diff --git a/src/obproxy/utils/ob_proxy_utils.h b/src/obproxy/utils/ob_proxy_utils.h
index 300d7c9c..62976d39 100644
--- a/src/obproxy/utils/ob_proxy_utils.h
+++ b/src/obproxy/utils/ob_proxy_utils.h
@@ -16,6 +16,7 @@
 #include "common/ob_object.h"
 #include "lib/string/ob_fixed_length_string.h"
 #include "utils/ob_proxy_lib.h"
+#include "iocore/net/ob_inet.h"
 
 namespace oceanbase
 {
@@ -79,6 +80,12 @@ int convert_timestamp_to_version(int64_t time_us, char *buf, int64_t len);
 int paste_tenant_and_cluster_name(const common::ObString &tenant_name, const common::ObString &cluster_name,
                                   common::ObFixedLengthString<OB_PROXY_MAX_TENANT_CLUSTER_NAME_LENGTH> &key_string);
 
+// split str like val0,val1;val2;val3 into
+// item:    val0  val1  val2  val3
+// weight:    0     0     1     2
+int split_weight_group(common::ObString weight_group_str, 
+                       common::ObIArray<common::ObString> &item, 
+                       common::ObIArray<int8_t> &weights);
 } // end of namespace obproxy
 } // end of namespace oceanbase
 
diff --git a/src/obproxy/utils/ob_target_db_server.cpp b/src/obproxy/utils/ob_target_db_server.cpp
new file mode 100644
index 00000000..8a0384d0
--- /dev/null
+++ b/src/obproxy/utils/ob_target_db_server.cpp
@@ -0,0 +1,147 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+#define USING_LOG_PREFIX PROXY
+#include "utils/ob_target_db_server.h"
+
+
+namespace oceanbase
+{
+namespace obproxy
+{
+using namespace oceanbase::common;
+
+int ObTargetDbServer::init(const char* target_db_server_str, uint64_t target_db_server_str_len)
+{
+  int ret = OB_SUCCESS;
+  reset();
+  if (OB_ISNULL(target_db_server_str)) {
+    ret = OB_INIT_FAIL;
+    LOG_WARN("fail to init target db server for NULL str", K(ret));
+  } else if (target_db_server_str_len == 0) {
+    LOG_DEBUG("succ to init target db server with empty str");
+  } else if (OB_ISNULL(target_db_server_buf_ = static_cast<char*>(op_fixed_mem_alloc(target_db_server_str_len + 1)))) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    LOG_WARN("fail to allocate mem for target db server", K(ret), K(target_db_server_str_len));
+  } else {
+    target_db_server_buf_len_ = target_db_server_str_len + 1;
+    MEMSET(target_db_server_buf_, '\0', target_db_server_buf_len_);
+    MEMCPY(target_db_server_buf_, target_db_server_str, target_db_server_str_len);
+  
+    ObString target_db_server_str(target_db_server_str_len, target_db_server_buf_);
+    if (OB_FAIL(split_weight_group(target_db_server_str, target_db_server_, target_db_server_weight_))) {
+       LOG_WARN("fail to split target db server str", K(ret));
+    } else { /* succ */ }
+  }
+
+  if (OB_SUCC(ret)) {
+    is_init_ = true;
+    LOG_DEBUG("succ to init all target db server", K_(target_db_server), K_(target_db_server_weight));
+  } else {
+    reset();
+  }
+  return ret;
+}
+
+int ObTargetDbServer::get(net::ObIpEndpoint &dest)
+{
+  int ret = OB_SUCCESS;
+
+  // [weight_start, weight_end) 
+  if (!is_init_) {
+    ret = OB_INIT_FAIL;
+    LOG_WARN("fail to get next, target db server not init", K(ret));
+  } else if (last_failed_idx_ == target_db_server_.count() - 1) {
+    ret = OB_DATA_OUT_OF_RANGE;
+    LOG_WARN("fail to get next, all target db server has failed", K(ret));
+  } else if (!is_rand_) {
+    ObTargetDbServerArray::iterator weight_begin = target_db_server_.begin();
+    for (int64_t i = 0; i < target_db_server_.count(); i++) {
+      if (i == target_db_server_.count() - 1) {
+        std::random_shuffle(weight_begin, target_db_server_.end());
+      } else if (target_db_server_weight_.at(i) != target_db_server_weight_.at(i + 1)) {
+        ObTargetDbServerArray::iterator weight_end = target_db_server_.begin() + (i + 1);
+        std::random_shuffle(weight_begin, weight_end);
+        weight_begin = weight_end;
+      }
+    }
+    is_rand_ = true;
+  }
+  if (OB_SUCC(ret)) {
+    ObString addr;
+    uint64_t idx = last_failed_idx_ + 1;
+    if (OB_FAIL(target_db_server_.at(idx, addr))) {
+      LOG_WARN("fail to access target db server array", K(ret), K(idx));
+    } else if (OB_FAIL(ops_ip_pton(addr, dest))) {
+      LOG_WARN("fail to do ops_ip_pton on target db server", K(ret), K(addr));
+    } else {
+      LOG_DEBUG("succ to get target db server", K(dest));
+    } 
+  }
+  return ret;
+}
+
+int ObTargetDbServer::get_next(net::ObIpEndpoint &dest_addr)
+{
+  // mark previous one as failed
+  last_failed_idx_++;
+  return get(dest_addr);
+}
+
+void ObTargetDbServer::reset() 
+{
+  is_init_ = false;
+  is_rand_ = false;
+  last_failed_idx_ = -1;
+  if (OB_NOT_NULL(target_db_server_buf_)) {
+    op_fixed_mem_free(target_db_server_buf_, target_db_server_buf_len_);
+    target_db_server_buf_len_ = 0;
+    target_db_server_buf_ = NULL;
+  }
+  target_db_server_.reset();
+  target_db_server_weight_.reset();
+}
+
+bool ObTargetDbServer::contains(net::ObIpEndpoint &addr) 
+{
+  bool ret = false;
+  if (is_init_) {
+    char addr_buf[MAX_IP_ADDR_LENGTH];
+    MEMSET(addr_buf, '\0', MAX_IP_ADDR_LENGTH);
+    // get like '{xxx.xxxx.xxx.xxx:xxxx}'
+    addr.to_string(addr_buf, sizeof(addr_buf));
+    // remove the last '}'
+    addr_buf[strlen(addr_buf) - 1] = '\0';
+    ObTargetDbServerArray::iterator it = target_db_server_.begin();
+    while (it != target_db_server_.end()) {
+      // skip the first '{'
+      if (it->case_compare(addr_buf + 1) == 0) {
+        ret = true;
+        break;
+      }
+      it++;
+    }
+  } else {
+    LOG_DEBUG("target db server not init!");
+  }
+  return ret;
+}
+
+int64_t ObTargetDbServer::to_string(char *buf, const int64_t buf_len) const
+{
+  int64_t pos = 0;
+  J_OBJ_START();
+  J_KV(K_(is_init), K_(is_rand), K_(last_failed_idx), K_(target_db_server));
+  J_OBJ_END();
+  return pos;
+}
+} // namespace obproxy
+} // namespace oceanbase
\ No newline at end of file
diff --git a/src/obproxy/utils/ob_target_db_server.h b/src/obproxy/utils/ob_target_db_server.h
new file mode 100644
index 00000000..54a3ef88
--- /dev/null
+++ b/src/obproxy/utils/ob_target_db_server.h
@@ -0,0 +1,77 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+#ifndef OB_TARGET_DB_SERVER_H
+#define OB_TARGET_DB_SERVER_H
+
+#include "lib/ob_define.h"
+#include "lib/container/ob_se_array.h"
+#include "lib/container/ob_se_array_iterator.h"
+#include "lib/utility/ob_print_utils.h"
+#include "iocore/net/ob_inet.h"
+#include "lib/string/ob_string.h"
+#include "utils/ob_proxy_utils.h"
+#include "iocore/eventsystem/ob_buf_allocator.h"
+
+namespace oceanbase
+{
+namespace obproxy
+{
+typedef common::ObSEArray<common::ObString, 4L> ObTargetDbServerArray;
+class ObTargetDbServer
+{
+public:
+  ObTargetDbServer() : 
+      is_init_(false), is_rand_(false), last_failed_idx_(-1),
+      target_db_server_buf_(NULL), target_db_server_buf_len_(0) {}
+ 
+  ObTargetDbServer& operator=(const ObTargetDbServer &other) {
+    if (this != &other) {
+      reset();
+      // other.target_db_server_buf_len_ - 1 to minus last '\0'
+      init(other.target_db_server_buf_, other.target_db_server_buf_len_ - 1);
+    }
+    return *this;
+  }
+
+  ~ObTargetDbServer() {
+    reset();
+  }
+
+  int init(const char* target_db_server_buf, uint64_t target_db_server_buf_len); 
+  // get the server with the highest priority execpt failed servers
+  int get(net::ObIpEndpoint &dest_addr);
+  // mark the previous visit server as failed then call get()
+  int get_next(net::ObIpEndpoint &dest_addr);
+  // num of target db server
+  inline int64_t num() const { return is_init_? target_db_server_.count() : 0; }
+  void reset();
+  int64_t to_string(char *buf, const int64_t buf_len) const;
+  bool contains(net::ObIpEndpoint &addr);
+
+  inline bool is_init() const { return is_init_; }
+  inline bool is_empty() const { return is_init_? target_db_server_.empty() : true; }
+  inline void reuse() { is_rand_ = false; last_failed_idx_ = -1; }
+
+private:
+  bool is_init_;
+  bool is_rand_;
+  int64_t last_failed_idx_;
+  char* target_db_server_buf_;
+  uint64_t target_db_server_buf_len_;
+
+  ObTargetDbServerArray  target_db_server_;
+  common::ObSEArray<int8_t, 4L> target_db_server_weight_;
+};
+
+} // end of namespace obproxy
+} // end of namespace oceanbase
+#endif
\ No newline at end of file
diff --git a/src/rpc/Makemodule.am b/src/rpc/Makemodule.am
index 50120c29..3b318e9f 100644
--- a/src/rpc/Makemodule.am
+++ b/src/rpc/Makemodule.am
@@ -20,6 +20,10 @@ rpc/obmysql/packet/ompk_handshake_response.h\
 rpc/obmysql/packet/ompk_handshake_response.cpp\
 rpc/obmysql/packet/ompk_prepare.h\
 rpc/obmysql/packet/ompk_prepare.cpp\
+rpc/obmysql/packet/ompk_prepare_execute.h\
+rpc/obmysql/packet/ompk_prepare_execute.cpp\
+rpc/obmysql/packet/ompk_prepare_execute_req.h\
+rpc/obmysql/packet/ompk_prepare_execute_req.cpp\
 rpc/obmysql/packet/ompk_ping.h\
 rpc/obmysql/packet/ompk_ssl_request.h\
 rpc/obmysql/packet/ompk_ssl_request.cpp
diff --git a/src/rpc/ob_request.cpp b/src/rpc/ob_request.cpp
index f2e4c658..4b692185 100644
--- a/src/rpc/ob_request.cpp
+++ b/src/rpc/ob_request.cpp
@@ -24,8 +24,11 @@ char *ObRequest::easy_alloc(int64_t size) const
   if (NULL == ez_req_ || NULL == ez_req_->ms) {
     RPC_LOG(ERROR, "ez_req_ is not corret");
   } else {
-    buf = easy_pool_alloc(
-        ez_req_->ms->pool, static_cast<uint32_t>(size));
+  /* this function is defined for c driver client compile */
+    UNUSED(size);
+    buf = NULL;
+    // buf = easy_pool_alloc(
+    //     ez_req_->ms->pool, static_cast<uint32_t>(size));
   }
   return static_cast<char*>(buf);
 }
diff --git a/src/rpc/obmysql/ob_mysql_field.cpp b/src/rpc/obmysql/ob_mysql_field.cpp
index dfd6198b..21d30995 100644
--- a/src/rpc/obmysql/ob_mysql_field.cpp
+++ b/src/rpc/obmysql/ob_mysql_field.cpp
@@ -94,6 +94,15 @@ int ObMySQLField::serialize_pro41(char *buf, const int64_t len, int64_t &pos) co
       LOG_WARN("serialize 0 failed", K(ret));
     }
   }
+  if (OB_SUCC(ret) && OB_MYSQL_TYPE_COMPLEX == type_) {
+    if (OB_FAIL(ObMySQLUtil::store_str_v(buf, len, type_info_.relation_name_.ptr(), type_info_.relation_name_.length(), pos))) {
+      LOG_WARN("serialize relation_name_ failed", K(ret));
+    } else if (OB_FAIL(ObMySQLUtil::store_str_v(buf, len, type_info_.type_name_.ptr(), type_info_.type_name_.length(),pos))) {
+      LOG_WARN("serialize type_name_ failed", K(ret));
+    } else if (OB_FAIL(ObMySQLUtil::store_length(buf, len, type_info_.version_, pos))) {
+      LOG_WARN("serialize type_name_ failed", K(ret));
+    } else { /* succ to write complex type */ }
+  }
 
   return ret;
 }
diff --git a/src/rpc/obmysql/ob_mysql_field.h b/src/rpc/obmysql/ob_mysql_field.h
index 32cfc7ab..e8001a6a 100644
--- a/src/rpc/obmysql/ob_mysql_field.h
+++ b/src/rpc/obmysql/ob_mysql_field.h
@@ -22,6 +22,17 @@ namespace oceanbase
 {
 namespace obmysql
 {
+
+struct TypeInfo {
+  TypeInfo() : relation_name_(), type_name_(), version_(0), is_elem_type_(false) {} ;
+  common::ObString relation_name_;
+  common::ObString type_name_;
+  uint64_t version_;
+  ObObjType elem_type_;
+  bool is_elem_type_;
+  TO_STRING_KV(K_(relation_name), K_(type_name), K_(version), K_(elem_type), K_(is_elem_type));
+};
+
 class ObMySQLField
 {
 public:
@@ -90,6 +101,7 @@ class ObMySQLField
   common::ObString org_cname_; // original column name
   common::ObAccuracy accuracy_;
   EMySQLFieldType type_;      // value type
+  TypeInfo type_info_;         // for complex type
   uint16_t flags_;            // unsigned and so on...
   EMySQLFieldType default_value_; //default value, only effective when command was OB_MYSQL_COM_FIELD_LIST
   uint16_t charsetnr_;    //character set of table
diff --git a/src/rpc/obmysql/ob_mysql_global.h b/src/rpc/obmysql/ob_mysql_global.h
index ff2cc80b..1acf42dc 100644
--- a/src/rpc/obmysql/ob_mysql_global.h
+++ b/src/rpc/obmysql/ob_mysql_global.h
@@ -100,6 +100,7 @@ enum EMySQLFieldType
   OB_MYSQL_TYPE_OB_TIMESTAMP_NANO = 202,
   OB_MYSQL_TYPE_OB_RAW = 203,
   OB_MYSQL_TYPE_OB_UROWID = 209,
+  OB_MYSQL_TYPE_JSON = 245,
   OB_MYSQL_TYPE_NEWDECIMAL = 246,
   OB_MYSQL_TYPE_ENUM = 247,
   OB_MYSQL_TYPE_SET = 248,
@@ -219,6 +220,9 @@ inline const char *get_emysql_field_type_str(const obmysql::EMySQLFieldType &typ
     case obmysql::OB_MYSQL_TYPE_STRING:
       str = "OB_MYSQL_TYPE_STRING";
       break;
+    case obmysql::OB_MYSQL_TYPE_JSON:
+      str = "OB_MYSQL_TYPE_JSON";
+      break;
     case obmysql::OB_MYSQL_TYPE_GEOMETRY:
       str = "OB_MYSQL_TYPE_GEOMETRY";
       break;
diff --git a/src/rpc/obmysql/packet/ompk_handshake.cpp b/src/rpc/obmysql/packet/ompk_handshake.cpp
index a24c89a7..e7aa4381 100644
--- a/src/rpc/obmysql/packet/ompk_handshake.cpp
+++ b/src/rpc/obmysql/packet/ompk_handshake.cpp
@@ -69,11 +69,11 @@ OMPKHandshake::OMPKHandshake()
     auth_plugin_data_len_ = 0;
   }
 
-  server_language_ = 83;//utf8_bin
-  server_status_ = 0;// no this value in mysql protocol document
+  server_language_ = 46;  // utf8mb4_bin
+  server_status_ = 0;     // no this value in mysql protocol document
   //auth_plugin_data_len_ = 0;
-  memset(reserved_, 0, sizeof (reserved_));
-  memset(auth_plugin_data2_, 'b', sizeof (auth_plugin_data2_) - 1);
+  memset(reserved_, 0, sizeof(reserved_));
+  memset(auth_plugin_data2_, 'b', sizeof(auth_plugin_data2_) - 1);
 }
 
 OMPKHandshake::~OMPKHandshake()
diff --git a/src/rpc/obmysql/packet/ompk_handshake_response.h b/src/rpc/obmysql/packet/ompk_handshake_response.h
index ffbeb1cc..ecb0a0c6 100644
--- a/src/rpc/obmysql/packet/ompk_handshake_response.h
+++ b/src/rpc/obmysql/packet/ompk_handshake_response.h
@@ -49,7 +49,7 @@ class OMPKHandshakeResponse : public ObMySQLPacket
   inline const ObString &get_auth_response() const { return auth_response_; }
   inline const ObString &get_database() const { return database_; }
   inline const ObString &get_auth_plugin_name() const { return auth_plugin_name_; }
-  inline const common::ObIArray<ObStringKV> &get_connect_attrs() const { return connect_attrs_; }
+  inline common::ObIArray<ObStringKV> &get_connect_attrs() { return connect_attrs_; }
   bool is_obproxy_client_mod() const;
 
   inline void set_capability_flags(const ObMySQLCapabilityFlags &cap) { capability_ = cap; }
diff --git a/src/rpc/obmysql/packet/ompk_prepare_execute.cpp b/src/rpc/obmysql/packet/ompk_prepare_execute.cpp
new file mode 100644
index 00000000..23bdf666
--- /dev/null
+++ b/src/rpc/obmysql/packet/ompk_prepare_execute.cpp
@@ -0,0 +1,93 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#define USING_LOG_PREFIX RPC_OBMYSQL
+#include "ompk_prepare_execute.h"
+#include "lib/oblog/ob_log_module.h"
+#include "rpc/obmysql/ob_mysql_util.h"
+
+using namespace oceanbase::common;
+using namespace oceanbase::obmysql;
+
+namespace oceanbase
+{
+using namespace common;
+namespace obmysql
+{
+
+int OMPKPrepareExecute::decode()
+{
+  int ret = OB_SUCCESS;
+  const char *pos = cdata_;
+  if (NULL != cdata_) {
+    ObMySQLUtil::get_uint1(pos, status_);
+    ObMySQLUtil::get_uint4(pos, statement_id_);
+    ObMySQLUtil::get_uint2(pos, column_num_);
+    ObMySQLUtil::get_uint2(pos, param_num_);
+    ObMySQLUtil::get_uint1(pos, reserved_);
+    ObMySQLUtil::get_uint2(pos, warning_count_);
+    ObMySQLUtil::get_uint4(pos, extend_flag_);
+    ObMySQLUtil::get_uint1(pos, has_result_set_); 
+  } else {
+    ret = OB_INVALID_ARGUMENT;
+    LOG_ERROR("null input", K(ret), K(cdata_));
+  }
+  return ret;
+}
+
+int OMPKPrepareExecute::serialize(char* buffer, int64_t length, int64_t& pos) const
+{
+  int ret = OB_SUCCESS;
+  if (NULL == buffer || 0 >= length || pos < 0 || length - pos < get_serialize_size()) {
+    ret = OB_INVALID_ARGUMENT;
+    LOG_WARN("invalid argument", K(buffer), K(length), K(pos), "need_size", get_serialize_size());
+  } else {
+    if (OB_SUCCESS != (ret = ObMySQLUtil::store_int1(buffer, length, status_, pos))) {
+      LOG_WARN("store failed", K(buffer), K(length), K_(status), K(pos));
+    } else if (OB_FAIL(ObMySQLUtil::store_int4(buffer, length, statement_id_, pos))) {
+      LOG_WARN("store failed", K(buffer), K(length), K_(statement_id), K(pos));
+    } else if (OB_FAIL(ObMySQLUtil::store_int2(buffer, length, column_num_, pos))) {
+      LOG_WARN("store failed", K(buffer), K(length), K_(column_num), K(pos));
+    } else if (OB_FAIL(ObMySQLUtil::store_int2(buffer, length, param_num_, pos))) {
+      LOG_WARN("store failed", K(buffer), K(length), K_(param_num), K(pos));
+    } else if (OB_FAIL(ObMySQLUtil::store_int1(buffer, length, reserved_, pos))) {
+      LOG_WARN("store failed", K(buffer), K(length), K_(reserved), K(pos));
+    } else if (OB_FAIL(ObMySQLUtil::store_int2(buffer, length, warning_count_, pos))) {
+      LOG_WARN("store failed", K(buffer), K(length), K_(warning_count), K(pos));
+    } else if (OB_FAIL(ObMySQLUtil::store_int4(buffer, length, extend_flag_, pos))) {
+      LOG_WARN("store failed", K(buffer), K(length), K_(extend_flag), K(pos));
+    } else if (OB_FAIL(ObMySQLUtil::store_int1(buffer, length, has_result_set_, pos))) {
+      LOG_WARN("store failed", K(buffer), K(length), K_(has_result_set), K(pos));
+    }
+  }
+  return ret;
+}
+
+int64_t OMPKPrepareExecute::get_serialize_size() const
+{
+  int64_t len = 0;
+  len += 1;                 // status
+  len += 4;                 // statement id
+  len += 2;                 // column num
+  len += 2;                 // param num
+  len += 1;                 // reserved
+  len += 2;                 // warning count
+  len += 4;                 // extend flags
+  len += 1;                 // has result set
+  return len;
+}
+
+
+
+
+} //end of obmysql
+} //end of oceanbase
diff --git a/src/rpc/obmysql/packet/ompk_prepare_execute.h b/src/rpc/obmysql/packet/ompk_prepare_execute.h
new file mode 100644
index 00000000..f33c6ce1
--- /dev/null
+++ b/src/rpc/obmysql/packet/ompk_prepare_execute.h
@@ -0,0 +1,88 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+
+#ifndef OCEANBASE_RPC_OBMYSQL_OMPK_PREPARE_EXECUTE_H_
+#define OCEANBASE_RPC_OBMYSQL_OMPK_PREPARE_EXECUTE_H_
+
+#include "ompk_prepare_execute.h"
+#include "rpc/obmysql/ob_mysql_packet.h"
+#include "lib/utility/ob_macro_utils.h"
+
+namespace oceanbase
+{
+namespace obmysql
+{
+
+/**
+ * This packet is response to OB_MYSQL_COM_STMT_PREPARE
+ * following with param desc && column desc packets
+ *
+ *  status (1) -- [00] OK
+ *  statement_id (4) -- statement-id
+ *  num_columns (2) -- number of columns
+ *  num_params (2) -- number of params
+ *  reserved_ (1) -- [00] filler
+ *  warning_count (2) -- number of warnings
+ */
+
+class OMPKPrepareExecute: public ObMySQLPacket
+{
+public:
+  OMPKPrepareExecute() :
+    status_(0),
+    statement_id_(0),
+    column_num_(0),
+    param_num_(0),
+    reserved_(0),
+    warning_count_(0),
+    extend_flag_(0),
+    has_result_set_(0)
+  {}
+  virtual ~OMPKPrepareExecute() {}
+
+  int decode();
+  virtual int serialize(char* buffer, int64_t length, int64_t& pos) const;
+  virtual int64_t get_serialize_size() const;
+
+  inline void set_status(const uint8_t status) { status_ = status; }
+  inline void set_statement_id(const uint32_t id) { statement_id_ = id; }
+  inline void set_column_num(const uint16_t num) { column_num_ = num;}
+  inline void set_param_num(const uint16_t num) { param_num_ = num; }
+  inline void set_warning_count(const uint16_t count) { warning_count_ = count; }
+  inline void set_extend_flag(const uint32_t extend_flag) { extend_flag_ = extend_flag; }
+  inline void set_has_result_set(const uint8_t has_result_set) { has_result_set_  = has_result_set; }
+
+  inline uint32_t get_statement_id() const { return statement_id_; }
+  inline uint16_t get_column_num() const { return column_num_;}
+  inline uint16_t get_param_num() const { return param_num_; }
+  inline uint16_t get_warning_count() const { return warning_count_; }
+  inline uint32_t get_extend_flag() const { return extend_flag_; }
+  inline uint8_t has_result_set() const { return has_result_set_; }
+
+private:
+  uint8_t  status_;
+  uint32_t statement_id_;
+  uint16_t column_num_;
+  uint16_t param_num_;
+  uint8_t  reserved_;
+  uint16_t warning_count_;
+  uint32_t extend_flag_;
+  uint8_t has_result_set_;
+  DISALLOW_COPY_AND_ASSIGN(OMPKPrepareExecute);
+};
+
+} //end of obmysql
+} //end of oceanbase
+
+
+#endif //OCEANBASE_RPC_OBMYSQL_OMPK_PREPARE_EXECUTE_H_
diff --git a/src/rpc/obmysql/packet/ompk_prepare_execute_req.cpp b/src/rpc/obmysql/packet/ompk_prepare_execute_req.cpp
new file mode 100644
index 00000000..533ec01e
--- /dev/null
+++ b/src/rpc/obmysql/packet/ompk_prepare_execute_req.cpp
@@ -0,0 +1,68 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#define USING_LOG_PREFIX RPC_OBMYSQL
+#include "ompk_prepare_execute_req.h"
+
+using namespace oceanbase::common;
+using namespace oceanbase::obmysql;
+namespace oceanbase
+{
+using namespace common;
+using namespace obproxy;
+using namespace proxy;
+
+namespace obmysql
+{
+
+int OMPKPrepareExecuteReq::decode()
+{
+  int ret = OB_SUCCESS;
+  const char *pos = cdata_;
+  int64_t data_len = hdr_.len_;
+  if (NULL != cdata_) {
+    uint64_t query_len = 0;
+    // skip cmd
+    if (OB_FAIL(ObMysqlPacketUtil::get_uint1(pos, data_len, cmd_))) {
+      LOG_WARN("fail to get uint1", K(data_len), K(ret));
+    } else if (OB_FAIL(ObMysqlPacketUtil::get_uint4(pos, data_len, statement_id_))) {
+      LOG_WARN("fail to get uint4", K(data_len), K(ret));
+    } else if (OB_FAIL(ObMysqlPacketUtil::get_uint1(pos, data_len, flags_))) {
+      LOG_WARN("fail to get uint1", K(data_len), K(ret));
+    } else if (OB_FAIL(ObMysqlPacketUtil::get_uint4(pos, data_len, iteration_count_))) {
+      LOG_WARN("fail to get uint4", K(data_len), K(ret));
+    } else if (OB_FAIL(ObMysqlPacketUtil::get_length(pos, data_len, query_len))) {
+      LOG_WARN("fail to get length", K(data_len), K(ret));
+    // skip query
+    } else if (FALSE_IT(pos += query_len)) {
+    } else if (OB_FAIL(ObMysqlPacketUtil::get_uint4(pos, data_len, param_num_))) {
+      LOG_WARN("fail to get uint4", K(data_len), K(ret));
+    // skip null bitmap
+    } else if (param_num_ <= 0) {
+      LOG_DEBUG("skip read param related", K(param_num_));
+    } else if (FALSE_IT(pos += (param_num_ + 7)/8)) {
+    } else if (OB_FAIL(ObMysqlPacketUtil::get_uint1(pos, data_len, new_params_bound_flag_))) {
+      LOG_WARN("fail to get uint1", K(data_len), K(ret));
+    } else if (new_params_bound_flag_ == 1 
+               && OB_FAIL(ObMysqlRequestAnalyzer::parse_param_type(param_num_, param_types_, type_infos_, pos, data_len))) {
+      LOG_WARN("fail to parse param type", K_(param_num), K(pos), K(data_len), K(ret));
+    } else { /* do nothing */ }
+    // skip the rest of data
+  } else {
+    ret = OB_INVALID_ARGUMENT;
+    LOG_ERROR("null input", K(ret), K(cdata_));
+  }
+  return ret;
+}
+
+} //end of obmysql
+} //end of oceanbase
diff --git a/src/rpc/obmysql/packet/ompk_prepare_execute_req.h b/src/rpc/obmysql/packet/ompk_prepare_execute_req.h
new file mode 100644
index 00000000..c1d148f8
--- /dev/null
+++ b/src/rpc/obmysql/packet/ompk_prepare_execute_req.h
@@ -0,0 +1,81 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase Database Proxy(ODP) is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+
+#ifndef OCEANBASE_RPC_OBMYSQL_OMPK_PREPARE_EXECUTE_REQ_H_
+#define OCEANBASE_RPC_OBMYSQL_OMPK_PREPARE_EXECUTE_REQ_H_
+
+#include "rpc/obmysql/ob_mysql_util.h"
+#include "lib/container/ob_se_array.h"
+#include "lib/utility/ob_macro_utils.h"
+#include "lib/oblog/ob_log_module.h"
+#include "obproxy/proxy/mysqllib/ob_mysql_request_analyzer.h"
+#include "obproxy/packet/ob_mysql_packet_util.h"
+namespace oceanbase
+{
+
+namespace obmysql
+{
+
+/**
+ * This packet is request to OB_MYSQL_COM_STMT_PREPARE_EXECUTE
+ * following with param desc && column desc packets
+ *
+ */
+
+class OMPKPrepareExecuteReq: public ObMySQLPacket
+{
+public:
+  OMPKPrepareExecuteReq() :
+    cmd_(OB_MYSQL_COM_STMT_PREPARE_EXECUTE),
+    statement_id_(0),
+    flags_(0),
+    iteration_count_(0),
+    query_(NULL),
+    param_num_(0),
+    null_bitmap_(NULL),
+    new_params_bound_flag_(0)
+   {}
+  virtual ~OMPKPrepareExecuteReq() {}
+
+  virtual int decode();
+
+  inline uint32_t get_statement_id() const { return statement_id_; }
+  inline uint32_t get_param_num() const { return param_num_; }
+  inline common::ObIArray<obmysql::EMySQLFieldType>& get_param_types() { return param_types_; }
+  inline common::ObIArray<obmysql::TypeInfo>& get_type_infos() { return type_infos_; }
+
+private:
+  uint8_t cmd_;
+  uint32_t statement_id_;
+  uint8_t flags_;
+  uint32_t iteration_count_;
+  common::ObString query_;
+  uint32_t param_num_; 
+  char* null_bitmap_;
+  uint8_t new_params_bound_flag_;
+  common::ObSEArray<obmysql::EMySQLFieldType, 2> param_types_;
+  common::ObSEArray<obmysql::TypeInfo, 2> type_infos_;
+  // ingore value of eache parameter
+  uint32_t execute_mode_;
+  uint32_t num_close_stmt_count_;
+  uint32_t check_sum_;
+  uint32_t extend_flag_;
+
+  DISALLOW_COPY_AND_ASSIGN(OMPKPrepareExecuteReq);
+};
+
+} //end of obmysql
+} //end of oceanbase
+
+
+#endif //OCEANBASE_RPC_OBMYSQL_OMPK_PREPARE_EXECUTE_REQ_H_
diff --git a/src/share/config/ob_common_config.cpp b/src/share/config/ob_common_config.cpp
index f02b5d6d..7f15540a 100644
--- a/src/share/config/ob_common_config.cpp
+++ b/src/share/config/ob_common_config.cpp
@@ -15,6 +15,7 @@
 #include "share/config/ob_server_config.h"
 #include "common/ob_record_header.h"
 
+static const char *ignore_config_opt_str[] = {"target_db_server"};
 namespace oceanbase
 {
 namespace common
@@ -44,9 +45,26 @@ ObCommonConfig::~ObCommonConfig()
 {
 }
 
+// tmp use for opt str
+int ObCommonConfig::add_extra_config_from_opt(const char *config_str,
+                                              int64_t version /* = 0 */ ,
+                                              bool check_name /* = false */)
+{
+  return add_config(config_str, version, check_name, ",\n", ignore_config_opt_str);
+}
+
 int ObCommonConfig::add_extra_config(const char *config_str,
                                      int64_t version /* = 0 */ ,
                                      bool check_name /* = false */)
+{
+  return add_config(config_str, version, check_name, "\n", NULL);
+}
+
+int ObCommonConfig::add_config(const char *config_str,
+                               int64_t version /* = 0 */ ,
+                               bool check_name /* = false */,
+                               const char* delim,
+                               const char* ignore_conf[])
 {
   int ret = OB_SUCCESS;
   const int64_t MAX_OPTS_LENGTH = sysconf(_SC_ARG_MAX);
@@ -67,7 +85,7 @@ int ObCommonConfig::add_extra_config(const char *config_str,
   } else {
     MEMCPY(buf, config_str, config_str_length);
     buf[config_str_length] = '\0';
-    token = STRTOK_R(buf, ",\n", &saveptr);
+    token = STRTOK_R(buf, delim, &saveptr);
   }
 
   while (OB_SUCC(ret) && OB_LIKELY(NULL != token)) {
@@ -86,7 +104,21 @@ int ObCommonConfig::add_extra_config(const char *config_str,
       value = saveptr_one;
     }
 
+    bool ignore = false;
+    if (OB_SUCC(ret) && OB_NOT_NULL(ignore_conf)) {
+      int64_t ignore_conf_num = sizeof(ignore_config_opt_str)/sizeof(char*);
+      for (int64_t i = 0; i < ignore_conf_num; i++) {
+        ObString conf(ignore_conf[i]);
+        if (OB_NOT_NULL(ignore_conf[i]) && conf.case_compare(name) == 0) {
+          ignore = true;
+          break;
+        }
+      }
+    }
+
     if (OB_FAIL(ret)) {
+    } else if (ignore) {
+      LOG_INFO("Ignore config", K(name), K(value));
     } else if (OB_ISNULL(pp_item = container_.get(ObConfigStringKey(name)))) {
       /* make compatible with previous configuration */
       ret = check_name ? OB_INVALID_CONFIG : OB_SUCCESS;
@@ -101,7 +133,7 @@ int ObCommonConfig::add_extra_config(const char *config_str,
       (*pp_item)->set_version(version);
       LOG_INFO("Load config succ", K(name), K(value));
     }
-    token = STRTOK_R(NULL, ",\n", &saveptr);
+    token = STRTOK_R(NULL, delim, &saveptr);
   }
 
   if (NULL != buf) {
diff --git a/src/share/config/ob_common_config.h b/src/share/config/ob_common_config.h
index d1a51b6c..a34c9df0 100644
--- a/src/share/config/ob_common_config.h
+++ b/src/share/config/ob_common_config.h
@@ -77,6 +77,15 @@ class ObCommonConfig : public ObInitConfigContainer
   virtual int add_extra_config(const char *config_str,
                                const int64_t version = 0,
                                const bool check_name = false);
+  int add_extra_config_from_opt(const char *config_str,
+                                const int64_t version = 0,
+                                const bool check_name = false);
+  int add_config(const char *config_str,
+                 int64_t version,
+                 bool check_name,
+                 const char* delim,
+                 const char* ignore_conf[]);
+
   virtual bool is_debug_sync_enabled() const { return false; }
 
   NEED_SERIALIZE_AND_DESERIALIZE;
diff --git a/src/share/config/ob_config.h b/src/share/config/ob_config.h
index 77d42d93..bfe2042f 100644
--- a/src/share/config/ob_config.h
+++ b/src/share/config/ob_config.h
@@ -349,7 +349,7 @@ class ObConfigIntegralItem
   virtual bool parse_range(const char *range);
   virtual void set_initial_value() { initial_value_ = value_; is_initial_value_set_ = true; }
 
-protected:
+public:
   //use current value to do input operation
   bool set(const char *str);
   virtual int64_t parse(const char *str, bool &valid) const = 0;
diff --git a/src/share/config/ob_config_helper.cpp b/src/share/config/ob_config_helper.cpp
index cc4a43d5..5e9bca71 100644
--- a/src/share/config/ob_config_helper.cpp
+++ b/src/share/config/ob_config_helper.cpp
@@ -17,11 +17,16 @@ namespace oceanbase
 {
 namespace common
 {
+
 bool ObConfigIpChecker::check(const ObConfigItem &t) const
 {
-  struct sockaddr_in sa;
-  int result = inet_pton(AF_INET, t.str(), &(sa.sin_addr));
-  return result != 0;
+  struct in_addr in;
+  int result = inet_pton(AF_INET, t.str(), &in);
+  if (result != 1) {
+    struct in6_addr in6;
+    result = inet_pton(AF_INET6, t.str(), &in6);
+  }
+  return result == 1;
 }
 
 ObConfigConsChecker:: ~ObConfigConsChecker()
diff --git a/src/share/inner_table/ob_inner_table_schema_constants.h b/src/share/inner_table/ob_inner_table_schema_constants.h
index c4df4b9f..dbad5b7a 100644
--- a/src/share/inner_table/ob_inner_table_schema_constants.h
+++ b/src/share/inner_table/ob_inner_table_schema_constants.h
@@ -298,6 +298,7 @@ const char *const OB_HELP_KEYWORD_TNAME                             = "help_keyw
 const char *const OB_HELP_RELATION_TNAME                            = "help_relation";
 const char *const OB_ALL_LOCAL_INDEX_STATUS_TNAME                   = "__all_local_index_status";
 const char *const OB_ALL_DUMMY_TNAME                                = "__all_dummy";
+const char *const OB_ALL_BINLOG_DUMMY_TNAME                         = "__all_binlog_dummy";
 const char *const OB_ALL_FROZEN_MAP_TNAME                           = "__all_frozen_map";
 const char *const OB_ALL_CLOG_HISTORY_INFO_TNAME                    = "__all_clog_history_info";
 const char *const OB_ALL_CLOG_HISTORY_INFO_V2_TNAME                 = "__all_clog_history_info_v2";
diff --git a/src/share/part/ob_part_desc.cpp b/src/share/part/ob_part_desc.cpp
index f0efb691..58fdc09f 100644
--- a/src/share/part/ob_part_desc.cpp
+++ b/src/share/part/ob_part_desc.cpp
@@ -13,6 +13,7 @@
 #include "share/part/ob_part_desc.h"
 #include "common/ob_obj_cast.h"
 #include "obproxy/proxy/mysqllib/ob_proxy_session_info.h"
+#include "obproxy/proxy/route/obproxy_expr_calculator.h"
 
 
 namespace oceanbase
@@ -92,9 +93,47 @@ int ObPartDesc::build_dtc_params(obproxy::proxy::ObClientSessionInfo *session_in
   return ret;
 }
 
-void ObPartDesc::set_accuracy(const ObProxyPartKeyAccuracy &accuracy)
+int ObPartDesc::cast_obj(ObObj &src_obj,
+                         ObObj &target_obj,
+                         ObIAllocator &allocator,
+                         ObPartDescCtx &ctx,
+                         ObAccuracy &accuracy)
 {
-  accuracy_ = accuracy;
+  return cast_obj(src_obj, target_obj.get_type(), target_obj.get_collation_type(), allocator, ctx, accuracy);
+}
+
+int ObPartDesc::cast_obj(ObObj &src_obj,
+                         ObObjType obj_type,
+                         ObCollationType cs_type,
+                         ObIAllocator &allocator,
+                         ObPartDescCtx &ctx,
+                         ObAccuracy &accuracy)
+{
+  int ret = OB_SUCCESS;
+  COMMON_LOG(DEBUG, "begin to cast obj", K(src_obj), K(obj_type), K(cs_type));
+
+  ObTimeZoneInfo tz_info;
+  ObDataTypeCastParams dtc_params;
+
+  if (OB_FAIL(obproxy::proxy::ObExprCalcTool::build_dtc_params_with_tz_info(ctx.get_session_info(),
+                                                                            obj_type, tz_info, dtc_params))) {
+    COMMON_LOG(WARN, "fail to build dtc params with ctx session", K(ret), K(obj_type));
+  } else {
+    ObCastCtx cast_ctx(&allocator, &dtc_params, CM_NULL_ON_WARN, cs_type);
+    const ObObj *res_obj = &src_obj;
+ 
+    // use src_obj as buf_obj
+    if (OB_FAIL(ObObjCasterV2::to_type(obj_type, cs_type, cast_ctx, src_obj, src_obj))) {
+      COMMON_LOG(WARN, "failed to cast obj", K(ret), K(src_obj), K(obj_type), K(cs_type));
+    } else if (ctx.need_accurate()
+               && OB_FAIL(obj_accuracy_check(cast_ctx, accuracy, cs_type, *res_obj, src_obj, res_obj))) {
+      COMMON_LOG(WARN, "fail to obj accuracy check", K(ret), K(src_obj));
+    } else {
+      COMMON_LOG(DEBUG, "end to cast obj for range", K(src_obj), K(obj_type), K(cs_type));
+    }
+  }
+
+  return ret;
 }
 
 } // end of common
diff --git a/src/share/part/ob_part_desc.h b/src/share/part/ob_part_desc.h
index b81027cd..77e271e7 100644
--- a/src/share/part/ob_part_desc.h
+++ b/src/share/part/ob_part_desc.h
@@ -18,6 +18,7 @@
 #include "lib/timezone/ob_time_convert.h"
 #include "share/part/ob_part_mgr_util.h"
 #include "obproxy/opsql/expr_parser/ob_expr_parse_result.h"
+#include "common/ob_row.h"
 
 namespace oceanbase
 {
@@ -82,12 +83,25 @@ class ObPartDesc
   int build_dtc_params(obproxy::proxy::ObClientSessionInfo *session_info,
                        ObObjType obj_type,
                        ObDataTypeCastParams &dtc_params);
-  void set_accuracy(const ObProxyPartKeyAccuracy &accuracy);
-
+  ObIArray<ObAccuracy> &get_accuracies() { return accuracies_; }
+
+  int cast_obj(ObObj &src_obj,
+               ObObj &target_obj,
+               ObIAllocator &allocator,
+               ObPartDescCtx &ctx,
+               ObAccuracy &accuracy);
+
+  int cast_obj(ObObj &src_obj,
+               ObObjType obj_type,
+               ObCollationType cs_type,
+               ObIAllocator &allocator,
+               ObPartDescCtx &ctx,
+               ObAccuracy &accuracy);
+  
   DECLARE_VIRTUAL_TO_STRING = 0;
   share::schema::ObPartitionLevel part_level_;
   share::schema::ObPartitionFuncType part_func_type_;
-  ObProxyPartKeyAccuracy accuracy_;
+  ObSEArray<ObAccuracy, 4> accuracies_;
   int64_t *tablet_id_array_;
 };
 
diff --git a/src/share/part/ob_part_desc_hash.cpp b/src/share/part/ob_part_desc_hash.cpp
index d5101432..e90b1421 100644
--- a/src/share/part/ob_part_desc_hash.cpp
+++ b/src/share/part/ob_part_desc_hash.cpp
@@ -27,10 +27,15 @@ ObPartDescHash::ObPartDescHash() : is_oracle_mode_(false)
 {
 }
 
-/*
+/**
   GET PARTITION ID
-
-  If input is not single int value, get all partition ids; otherwise, get the particular one.
+  Hash partition only route like 'by hash(c1,c2) ... where c1=xx and c2=xx',
+  only use range.start_key_ to calc, because when condition is like 'c1=xx', 
+  start_key_[i] == end_key_[i] 
+  @param range (xxx,yyy,min,min ; xxx,yyy,max,max)
+  @param allocator
+  @param part_ids[out]
+  @param ctx
  */
 int ObPartDescHash::get_part(ObNewRange &range,
                              ObIAllocator &allocator,
@@ -38,30 +43,72 @@ int ObPartDescHash::get_part(ObNewRange &range,
                              ObPartDescCtx &ctx,
                              ObIArray<int64_t> &tablet_ids)
 {
-  int ret = OB_SUCCESS;
-  if (1 != range.get_start_key().get_obj_cnt()) { // single value
-    ret = OB_INVALID_ARGUMENT;
-    COMMON_LOG(DEBUG, "hash part should be single key",
-                      "obj_cnt", range.get_start_key().get_obj_cnt(), K(ret));
-  } else {
-    int64_t part_idx = -1;
-    ObObj &src_obj = const_cast<ObObj &>(range.get_start_key().get_obj_ptr()[0]);
-    if (is_oracle_mode_) {
-      ret = calc_value_for_oracle(src_obj, allocator, part_idx, ctx);
+  int ret = OB_SUCCESS; 
+  // 1. Cast obj
+  // provide all objs are valid. 
+  // "valid" means the obj not min or max
+  int64_t valid_obj_cnt = range.start_key_.get_obj_cnt();
+  for (int64_t i = 0; OB_SUCC(ret) && i < range.start_key_.get_obj_cnt(); i++) {
+    // if obj is min or max, means all valid obj has been casted
+    if (range.start_key_.get_obj_ptr()[i].is_max_value() || 
+        range.start_key_.get_obj_ptr()[i].is_min_value()) {
+      // minus the number of invalid obj
+      valid_obj_cnt = valid_obj_cnt - (range.start_key_.get_obj_cnt() - i);
+      // not need to cast any more and break loop
+      if (valid_obj_cnt == 0) {
+        ret = OB_INVALID_ARGUMENT;
+        COMMON_LOG(WARN, "not support hash partition calc with range", K(range));
+      }
+      break;
     } else {
-      ret = calc_value_for_mysql(src_obj, allocator, part_idx);
+      ObObj *src_obj = const_cast<ObObj*>(&range.start_key_.get_obj_ptr()[i]);
+      if (OB_ISNULL(src_obj)) {
+        // here src_obj shouldn't be null
+        ret = OB_ERR_NULL_VALUE;
+        COMMON_LOG(ERROR, "unexpected null pointer src_obj");
+      } else if (src_obj->is_null()) {
+        // here src_obj shouldn't be null type
+        ret = OB_OBJ_TYPE_ERROR;
+        COMMON_LOG(ERROR, "unexpected null type", K(src_obj));
+      // oracle mode cast all valid objs to target type
+      } else if (is_oracle_mode_) {
+        if(OB_FAIL(cast_obj(*src_obj, obj_types_[i], cs_types_[i], allocator, ctx, accuracies_.at(i)))) {
+          COMMON_LOG(WARN, "cast obj failed", K(src_obj), "obj_type", obj_types_[i], "cs_type", cs_types_[i]);
+          // TODO: handle failure
+        }
+      // mysql mode only cast first valid obj to int type then break loop
+      } else /*if (is_mysql_mode_) */ {
+        ObCastCtx cast_ctx(&allocator, NULL, CM_NULL_ON_WARN, CS_TYPE_INVALID);
+        if (OB_FAIL(ObObjCasterV2::to_type(ObIntType, cs_types_[i], cast_ctx, *src_obj, *src_obj))) {
+          COMMON_LOG(WARN, "failed to cast to ObIntType", K(src_obj), K(ret));
+        }
+        break;
+      }
     }
+  }
 
-    if (OB_SUCC(ret)) {
-      int64_t part_id = -1;
-      if (OB_FAIL(get_part_hash_idx(part_idx, part_id))) {
-        COMMON_LOG(WARN, "fail to get part hash id", K(ret));
-      } else if (OB_FAIL(part_ids.push_back(part_id))) {
-        COMMON_LOG(WARN, "fail to push part_id", K(ret));
-      } else if (NULL != tablet_id_array_ && OB_FAIL(tablet_ids.push_back(tablet_id_array_[part_idx]))) {
-        COMMON_LOG(WARN, "fail to push tablet_id", K(ret));
-      }
+  // 2. Calc partition id
+  int64_t part_idx = -1;
+  if (OB_SUCC(ret)) {
+    // hash val
+    int64_t result = 0;
+    if (is_oracle_mode_) {
+      // oracle mode: use obj to calc hash val
+      ret = calc_value_for_oracle(range.start_key_.get_obj_ptr(), valid_obj_cnt, result, ctx);
+    } else {
+      // mysql mode: use single obj to calc hash val
+      ret = calc_value_for_mysql(range.start_key_.get_obj_ptr(), result);
     }
+    int64_t part_id = -1;
+    if (OB_SUCC(ret) && OB_FAIL(calc_hash_part_idx(result, part_num_, part_idx))) {
+      COMMON_LOG(WARN, "fail to cal hash part idx", K(ret), K(result), K(part_num_));
+    } else if (OB_FAIL(get_part_hash_idx(part_idx, part_id))) {
+      COMMON_LOG(WARN, "fail to get part hash id", K(part_idx), K(ret));
+    } else if (OB_FAIL(part_ids.push_back(part_id))) {
+      COMMON_LOG(WARN, "fail to push part_id", K(ret));
+    } else if (NULL != tablet_id_array_ && OB_FAIL(tablet_ids.push_back(tablet_id_array_[part_idx]))) {
+      COMMON_LOG(WARN, "fail to push tablet_id", K(ret));
+    } else {}
   }
 
   return ret;
@@ -152,103 +199,91 @@ uint64_t ObPartDescHash::calc_hash_value_with_seed(const ObObj &obj, const int64
 
   return hval;
 }
-
-int ObPartDescHash::calc_value_for_oracle(ObObj &src_obj,
-                                          ObIAllocator &allocator,
-                                          int64_t &part_idx,
+int ObPartDescHash::calc_value_for_oracle(const ObObj *objs,
+                                          int64_t objs_cnt,
+                                          int64_t &result,
                                           ObPartDescCtx &ctx)
 {
   int ret = OB_SUCCESS;
-
-  ObTimeZoneInfo tz_info;
-  ObDataTypeCastParams dtc_params;
-
-  if (OB_FAIL(obproxy::proxy::ObExprCalcTool::build_dtc_params_with_tz_info(ctx.get_session_info(),
-                                                                            obj_type_, tz_info, dtc_params))) {
-    COMMON_LOG(WARN, "fail to build dtc params with tz info", K(ret));
-  } else {
-    lib::set_oracle_mode(true);
-
-    uint64_t hash_val = 0;
-    ObCastCtx cast_ctx(&allocator, &dtc_params, CM_NULL_ON_WARN, cs_type_);
-    const ObObj *res_obj = &src_obj;
-
-    ObAccuracy accuracy(accuracy_.valid_, accuracy_.length_, accuracy_.precision_, accuracy_.scale_);
-
-    // use src_obj as buf_obj
-    COMMON_LOG(DEBUG, "begin to cast value for hash oracle", K(src_obj), K(cs_type_));
-    if (OB_FAIL(ObObjCasterV2::to_type(obj_type_, cs_type_, cast_ctx, src_obj, src_obj))) {
-      COMMON_LOG(WARN, "failed to cast obj", K(ret), K(src_obj), K(obj_type_), K(cs_type_));
-    } else if (ctx.need_accurate()
-               && OB_FAIL(obj_accuracy_check(cast_ctx, accuracy, cs_type_, *res_obj, src_obj, res_obj))) {
-      COMMON_LOG(WARN, "fail to obj accuracy check", K(ret), K(src_obj), K(obj_type_));
+  uint64_t hash_code = 0;
+  if (OB_ISNULL(objs) || 0 == objs_cnt) {
+    ret = OB_ERR_UNEXPECTED;
+    COMMON_LOG(WARN, "objs_stack is null or number incorrect", K(objs), K(objs_cnt), K(ret));
+  }
+  for (int64_t i = 0; OB_SUCC(ret) && i < objs_cnt; ++i) {
+    const ObObj &obj = objs[i];
+    const ObObjType type = obj.get_type();
+    if (ObNullType == type) {
+      //do nothing, hash_code not changed
+    } else if (!is_oracle_supported_type(type)) {
+      ret = OB_INVALID_ARGUMENT;
+      COMMON_LOG(WARN, "type is wrong", K(ret), K(obj), K(type));
     } else {
-      COMMON_LOG(DEBUG, "finish to cast and accuracy values for hash oracle", K(src_obj), K(obj_type_), K(cs_type_));
-      // calculate hash value
-      const ObObjType type = src_obj.get_type();
-      if (ObNullType == type) {
-        //do nothing, hash_code not changed
-      } else if (!is_oracle_supported_type(type)) {
-        ret = OB_INVALID_ARGUMENT;
-        COMMON_LOG(WARN, "type is wrong", K(ret), K(src_obj), K(type));
-      } else {
-        hash_val = calc_hash_value_with_seed(src_obj, ctx.get_cluster_version(), hash_val);
-      }
+      hash_code = calc_hash_value_with_seed(obj, ctx.get_cluster_version(), hash_code);
     }
+  }
+  result = static_cast<int64_t>(hash_code);
+  result = result < 0 ? -result : result;
+  if (OB_SUCC(ret)) {
+    COMMON_LOG(TRACE, "succ to calc hash value with oracle mode", KP(objs), K(objs[0]), K(objs_cnt), K(result), K(ret));
+  } else {
+    COMMON_LOG(WARN, "fail to calc hash value with oracle mode", KP(objs), K(objs_cnt), K(result), K(ret));
+  }
+  return ret;
+}
 
-    lib::set_oracle_mode(false);
-
-    // calculate logic partition
-    if (OB_SUCC(ret)) {
-      int64_t N = 0;
-      int64_t powN = 0;
-      const static int64_t max_part_num_log2 = 64;
-
-      int64_t result_num = static_cast<int64_t>(hash_val);
-      result_num = result_num < 0 ? -result_num : result_num;
-
-      N = static_cast<int64_t>(std::log(part_num_) / std::log(2));
-      if (N >= max_part_num_log2) {
-        ret = OB_ERR_UNEXPECTED;
-        COMMON_LOG(WARN, "result is too big", K(N), K(part_num_), K(result_num));
+int ObPartDescHash::calc_value_for_mysql(const ObObj *obj, int64_t &result)
+{
+  int ret = OB_SUCCESS;
+  if (OB_ISNULL(obj)) {
+    ret = OB_ERR_UNEXPECTED;
+    COMMON_LOG(WARN, "unexpected null ptr", K(ret));
+  } else if (OB_UNLIKELY(obj->is_null())) {
+    result = 0;
+  } else {
+    int64_t num = 0;
+    if (OB_FAIL(obj->get_int(num))) {
+      COMMON_LOG(WARN, "fail to get int", K(obj), K(ret));
+    } else {
+      if (OB_UNLIKELY(INT64_MIN == num)) {
+        num = INT64_MAX;
       } else {
-        powN = (1ULL << N);
-        part_idx = result_num % powN;
-        if (part_idx + powN < part_num_ && (result_num & powN) == powN) {
-          part_idx += powN;
-        }
+        num = num < 0 ? -num : num;
       }
-      COMMON_LOG(DEBUG, "get hash part idx for oracle mode",
-        K(ret), K(result_num), K(part_num_), K(N), K(powN), K(part_idx));
+      result = num;
     }
   }
-
+  COMMON_LOG(TRACE, "calc hash value with mysql mode", K(ret));
   return ret;
 }
 
-int ObPartDescHash::calc_value_for_mysql(ObObj &src_obj, ObIAllocator &allocator, int64_t &part_idx)
+int ObPartDescHash::calc_hash_part_idx(const uint64_t val,
+                                       const int64_t part_num,
+                                       int64_t &partition_idx)
 {
   int ret = OB_SUCCESS;
-
-  ObCastCtx cast_ctx(&allocator, NULL, CM_NULL_ON_WARN, CS_TYPE_INVALID);
-  ObObjType target_type = ObIntType;
-  if (OB_FAIL(ObObjCasterV2::to_type(target_type, cs_type_, cast_ctx, src_obj, src_obj))) {
-    COMMON_LOG(INFO, "failed to cast to target type", K(target_type), K(src_obj), K(ret));
-  } else {
-    int64_t val = 0;
-    if (OB_FAIL(src_obj.get_int(val))) {
-      COMMON_LOG(WARN, "fail to get int", K(src_obj), K(ret));
+  int64_t N = 0;
+  int64_t powN = 0;
+  const static int64_t max_part_num_log2 = 64;
+  // This function is used by SQL. Should ensure SQL runs in MySQL mode when query sys table.
+  if (is_oracle_mode_) {
+    // It will not be a negative number, so use forced conversion instead of floor
+    N = static_cast<int64_t>(std::log(part_num) / std::log(2));
+    if (N >= max_part_num_log2) {
+      ret = OB_ERR_UNEXPECTED;
+      COMMON_LOG(WARN, "result is too big", K(N), K(part_num), K(val));
     } else {
-      if (OB_UNLIKELY(INT64_MIN == val)) {
-        val = INT64_MAX;
-      } else {
-        val = val < 0 ? -val : val;
+      powN = (1ULL << N);
+      partition_idx = val & (powN - 1); //pow(2, N));
+      if (partition_idx + powN < part_num && (val & powN) == powN) {
+        partition_idx += powN;
       }
-      part_idx = val % part_num_;
-      COMMON_LOG(DEBUG, "get hash part idx for mysql mode", K(ret), K(val), K(part_num_), K(part_idx));
     }
+    COMMON_LOG(DEBUG, "get hash part idx", K(lbt()), K(ret), K(val), K(part_num), K(N), K(powN), K(partition_idx));
+  } else {
+    partition_idx = val % part_num;
+    COMMON_LOG(DEBUG, "get hash part idx", K(lbt()), K(ret), K(val), K(part_num), K(partition_idx));
   }
-
   return ret;
 }
 
diff --git a/src/share/part/ob_part_desc_hash.h b/src/share/part/ob_part_desc_hash.h
index ffe7b0a8..2d5b10ee 100644
--- a/src/share/part/ob_part_desc_hash.h
+++ b/src/share/part/ob_part_desc_hash.h
@@ -16,6 +16,7 @@
 //#include "common/ob_object.h"
 #include "share/part/ob_part_desc.h"
 #include "share/part/ob_part_mgr_util.h"
+#include "proxy/route/obproxy_part_mgr.h"
 
 namespace oceanbase
 {
@@ -38,11 +39,12 @@ class ObPartDescHash : public ObPartDesc
   void set_part_space(int64_t part_space) { part_space_ = part_space; }
   void set_first_part_id(int64_t first_part_id) { first_part_id_ = first_part_id; }
   int64_t get_first_part_id() { return first_part_id_; }
-  void set_part_key_type(const ObObjType obj_type) { obj_type_ = obj_type; }
-  void set_part_key_cs_type(const ObCollationType cs_type) { cs_type_ = cs_type; }
   void set_part_array(int64_t *part_array) { part_array_ = part_array; }
   void set_oracle_mode(bool is_oracle_mode) { is_oracle_mode_ = is_oracle_mode; }
 
+  ObIArray<ObObjType> &get_obj_types() { return obj_types_; }
+  ObIArray<ObCollationType> &get_cs_types() { return cs_types_; }
+
   VIRTUAL_TO_STRING_KV("part_type", "hash",
                        K_(is_oracle_mode),
                        K_(part_num),
@@ -52,18 +54,19 @@ class ObPartDescHash : public ObPartDesc
 private:
   uint64_t calc_hash_value_with_seed(const ObObj &obj, const int64_t cluster_version, int64_t seed);
   bool is_oracle_supported_type(const ObObjType type);
-  int calc_value_for_oracle(ObObj &src_obj, ObIAllocator &allocator, int64_t &part_idx, ObPartDescCtx &ctx);
-  int calc_value_for_mysql(ObObj &src_obj, ObIAllocator &allocator, int64_t &part_idx);
+  int calc_value_for_oracle(const ObObj *objs, int64_t objs_cnt, int64_t &result, ObPartDescCtx &ctx);
+  int calc_value_for_mysql(const ObObj *obj, int64_t &result);
   int get_part_hash_idx(const int64_t part_idx, int64_t &part_id);
+  int calc_hash_part_idx(const uint64_t val, const int64_t part_num, int64_t &partition_idx);
 
 private:
   bool is_oracle_mode_;
   int64_t part_num_;
   int64_t part_space_;
   int64_t first_part_id_;
-  // TODO: add multiple key
-  ObObjType obj_type_;
-  ObCollationType cs_type_;
+  // multiple key
+  ObSEArray<ObObjType, 4> obj_types_;
+  ObSEArray<ObCollationType, 4> cs_types_;
   int64_t *part_array_;
 };
 }
diff --git a/src/share/part/ob_part_desc_key.cpp b/src/share/part/ob_part_desc_key.cpp
index fa027bb7..86127731 100644
--- a/src/share/part/ob_part_desc_key.cpp
+++ b/src/share/part/ob_part_desc_key.cpp
@@ -22,16 +22,18 @@ namespace common
 ObPartDescKey::ObPartDescKey() : part_num_(0)
                                , part_space_(0)
                                , first_part_id_(0)
-                               , obj_type_(ObMaxType)
-                               , cs_type_(CS_TYPE_INVALID)
                                , part_array_(NULL)
 {
 }
-
-/*
+/**
   GET PARTITION ID
-
-  If input is not single int value, return invalid argument; otherwise, get the particular one.
+  Hash partition only route like 'by key(c1,c2) ... where c1=xx and c2=xx',
+  only use range.start_key_ to calc, because when condition is like 'c1=xx', 
+  start_key_[i] == end_key_[i] 
+  @param range (xxx,yyy,min,min ; xxx,yyy,max,max)
+  @param allocator
+  @param part_ids[out]
+  @param ctx
  */
 int ObPartDescKey::get_part(ObNewRange &range,
                             ObIAllocator &allocator,
@@ -40,69 +42,126 @@ int ObPartDescKey::get_part(ObNewRange &range,
                             ObIArray<int64_t> &tablet_ids)
 {
   int ret = OB_SUCCESS;
+  // provide all objs are valid. 
+  // "valid" means the obj not min or max
+  int64_t valid_obj_cnt = range.start_key_.get_obj_cnt();
+  // cast objs store in range.start_key_
+  for (int64_t i = 0; OB_SUCC(ret) && i < range.start_key_.get_obj_cnt(); i++) {
+    // if obj is min or max, means all valid obj has been casted
+    if (range.start_key_.get_obj_ptr()[i].is_max_value() || 
+        range.start_key_.get_obj_ptr()[i].is_min_value()) {
+      // minus the number of invalid obj
+      valid_obj_cnt = valid_obj_cnt - (range.start_key_.get_obj_cnt() - i);
+      // not need to cast any more and break loop
+      if (valid_obj_cnt == 0) {
+        ret = OB_INVALID_ARGUMENT;
+        COMMON_LOG(WARN, "not support key partition calc with range", K(range));
+      }
+      break;
+    } else {
+      ObObj *src_obj = const_cast<ObObj*>(&range.start_key_.get_obj_ptr()[i]);
+      // here src_obj shouldn't be null
+      if (OB_ISNULL(src_obj)) {
+        ret = OB_ERR_NULL_VALUE;
+        COMMON_LOG(ERROR, "unexpected null pointer src_obj");
+        break;
+      } else if (src_obj->is_null()) {
+        // here src_obj shouldn't be null type
+        ret = OB_OBJ_TYPE_ERROR;
+        COMMON_LOG(ERROR, "unexpected null type", K(src_obj));
+      } else if(OB_FAIL(cast_obj(*src_obj, obj_types_[i], cs_types_[i], allocator, ctx, accuracies_.at(i)))) {
+        COMMON_LOG(WARN, "cast obj failed", K(src_obj), "obj_type", obj_types_[i], "cs_type", cs_types_[i]);
+        // TODO: handle failure
+      }
+    }
 
-  if (1 != range.get_start_key().get_obj_cnt()) { // single value
-    ret = OB_INVALID_ARGUMENT;
-    COMMON_LOG(WARN, "key part should be single key",
-                      "obj_cnt", range.get_start_key().get_obj_cnt(), K(ret));
-  } else {
-    ObTimeZoneInfo tz_info;
-    ObDataTypeCastParams dtc_params;
 
-    if (OB_FAIL(obproxy::proxy::ObExprCalcTool::build_dtc_params_with_tz_info(ctx.get_session_info(),
-                                                                              obj_type_, tz_info, dtc_params))) {
-      COMMON_LOG(WARN, "fail to build dtc params with ctx session", K(ret), K(obj_type_));
+  }
+
+  int64_t part_idx = -1;
+  if (OB_SUCC(ret)) {
+    // hash val
+    int64_t result = 0;
+    int64_t part_id = -1;
+    if (OB_FAIL(calc_value_for_mysql(range.start_key_.get_obj_ptr(), valid_obj_cnt, result, ctx))) {
+      COMMON_LOG(WARN, "fail to cal key val", K(ret), K(valid_obj_cnt));
+    } else if (OB_FAIL(calc_key_part_idx(result, part_num_, part_idx))) {
+      COMMON_LOG(WARN, "fail to cal key part idx", K(ret), K(result), K(part_num_));
+    } else if (OB_FAIL(get_part_hash_idx(part_idx, part_id))) {
+      COMMON_LOG(WARN, "fail to get part key id", K(part_idx), K(ret));
+    } else if (OB_FAIL(part_ids.push_back(part_id))) {
+      COMMON_LOG(WARN, "fail to push part_id", K(ret));
+    } else if (NULL != tablet_id_array_ && OB_FAIL(tablet_ids.push_back(tablet_id_array_[part_idx]))) {
+      COMMON_LOG(WARN, "fail to push tablet id", K(ret));
+    } else {}
+  }
+
+  return ret;
+}
+
+
+int ObPartDescKey::calc_value_for_mysql(const ObObj *objs,
+                                          int64_t objs_cnt,
+                                          int64_t &result,
+                                          ObPartDescCtx &ctx)
+{
+  int ret = OB_SUCCESS;
+  uint64_t hash_code = 0;
+   if (OB_ISNULL(objs) || 0 == objs_cnt) {
+    ret = OB_ERR_UNEXPECTED;
+    COMMON_LOG(WARN, "objs_stack is null or number incorrect", K(objs), K(objs_cnt), K(ret));
+  }
+  for (int64_t i = 0; OB_SUCC(ret) && i < objs_cnt; ++i) {
+    const ObObj &obj = objs[i];
+     if (ObNullType == obj.get_type()) {
+      //do nothing, hash_code not changed
     } else {
-      ObCastCtx cast_ctx(&allocator, &dtc_params, CM_NULL_ON_WARN, cs_type_);
-      ObObj &src_obj = const_cast<ObObj &>(range.get_start_key().get_obj_ptr()[0]);
-      const ObObj *res_obj = &src_obj; 
-      ObAccuracy accuracy(accuracy_.valid_, accuracy_.length_, accuracy_.precision_, accuracy_.scale_);
-
-      // use src_obj as buf_obj
-      if (OB_FAIL(ObObjCasterV2::to_type(obj_type_, cs_type_, cast_ctx, src_obj, src_obj))) {
-        COMMON_LOG(WARN, "fail to cast obj", K(ret), K(src_obj), K(obj_type_), K(cs_type_));
-      } else if (ctx.need_accurate()
-                 && OB_FAIL(obj_accuracy_check(cast_ctx, accuracy, cs_type_, *res_obj, src_obj, res_obj))) {
-        COMMON_LOG(WARN, "fail to obj accuracy check", K(ret), K(src_obj), K(obj_type_));
-      } else {
-        int64_t result_num = 0;
-        if ((IS_CLUSTER_VERSION_LESS_THAN_V4(ctx.get_cluster_version())
-            && (share::schema::PARTITION_FUNC_TYPE_KEY_V3 == part_func_type_
-            || share::schema::PARTITION_FUNC_TYPE_KEY_IMPLICIT_V2 == part_func_type_))
-            || (!IS_CLUSTER_VERSION_LESS_THAN_V4(ctx.get_cluster_version()))) {
-          result_num = static_cast<int64_t>(src_obj.hash_murmur());
-        } else {
-          result_num = static_cast<int64_t>(src_obj.hash());
-        }
-        result_num = result_num < 0 ? -result_num : result_num;
-        int64_t part_idx = result_num % part_num_;
-        int64_t part_id = part_idx;
-        if (share::schema::PARTITION_LEVEL_ONE == part_level_ && NULL != part_array_) {
-          part_id = part_array_[part_idx];
-        }
-        part_id = part_space_ << OB_PART_IDS_BITNUM | part_id;
-        if (OB_FAIL(part_ids.push_back(part_id))) {
-          COMMON_LOG(WARN, "fail to push part_id", K(ret));
-        } else if (NULL != tablet_id_array_ && OB_FAIL(tablet_ids.push_back(tablet_id_array_[part_idx]))) {
-          COMMON_LOG(WARN, "fail to push tablet id", K(ret));
-        }
-      }
+      hash_code = calc_hash_value_with_seed(obj, ctx.get_cluster_version(), hash_code);
     }
   }
+  result = static_cast<int64_t>(hash_code);
+  result = result < 0 ? -result : result;
+  if (OB_SUCC(ret)) {
+    COMMON_LOG(TRACE, "succ to calc hash value with oracle mode", KP(objs), K(objs[0]), K(objs_cnt), K(result), K(ret));
+  } else {
+    COMMON_LOG(WARN, "fail to calc hash value with oracle mode", KP(objs), K(objs_cnt), K(result), K(ret));
+  }
+  return ret;
+}
+
+uint64_t ObPartDescKey::calc_hash_value_with_seed(const ObObj &obj, const int64_t cluster_version, int64_t seed)
+{
+  int64_t hval = 0;
+  if ((IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version)
+        && (share::schema::PARTITION_FUNC_TYPE_KEY_V3 == part_func_type_
+          || share::schema::PARTITION_FUNC_TYPE_KEY_IMPLICIT_V2 == part_func_type_))
+      || (!IS_CLUSTER_VERSION_LESS_THAN_V4(cluster_version))) {
+    hval = static_cast<int64_t>(obj.hash_murmur(seed));
+  } else {
+    hval = static_cast<int64_t>(obj.hash(seed));
+  }
 
+  return hval;
+}
+
+int ObPartDescKey::calc_key_part_idx(const uint64_t val,
+                                      const int64_t part_num,
+                                      int64_t &partition_idx)
+{
+  int ret = OB_SUCCESS;
+  partition_idx = val % part_num;
+  COMMON_LOG(DEBUG, "get hash part idx", K(lbt()), K(ret), K(val), K(part_num), K(partition_idx));
   return ret;
 }
 
 int ObPartDescKey::get_part_by_num(const int64_t num, common::ObIArray<int64_t> &part_ids, common::ObIArray<int64_t> &tablet_ids)
 {
   int ret = OB_SUCCESS;
+  int64_t part_id = -1;
   int64_t part_idx = num % part_num_;
-  int64_t part_id = part_idx;
-  if (share::schema::PARTITION_LEVEL_ONE == part_level_ && part_array_ != NULL) {
-    part_id = part_array_[part_idx];
-  }
-  part_id = part_space_ << OB_PART_IDS_BITNUM | part_id;
-  if (OB_FAIL(part_ids.push_back(part_id))) {
+  if (OB_FAIL(get_part_hash_idx(part_idx, part_id))) {
+    COMMON_LOG(WARN, "fail to get part hash id", K(num), K(ret));
+  } else if (OB_FAIL(part_ids.push_back(part_id))) {
     COMMON_LOG(WARN, "fail to push part_id", K(ret));
   } else if (NULL != tablet_id_array_ && OB_FAIL(tablet_ids.push_back(tablet_id_array_[part_idx]))) {
     COMMON_LOG(WARN, "fail to push tablet id", K(ret));
@@ -110,6 +169,22 @@ int ObPartDescKey::get_part_by_num(const int64_t num, common::ObIArray<int64_t>
   return ret;
 }
 
+int ObPartDescKey::get_part_hash_idx(const int64_t part_idx, int64_t &part_id)
+{
+  int ret =OB_SUCCESS;
+
+  part_id = part_idx;
+  if (share::schema::PARTITION_LEVEL_ONE == part_level_) {
+    if (part_idx >= 0 && NULL != part_array_) {
+      part_id = part_array_[part_idx];
+    }
+  }
+  if (OB_SUCC(ret)) {
+    part_id = part_space_ << OB_PART_IDS_BITNUM | part_id;
+    COMMON_LOG(DEBUG, "get hash part id", K(ret), K(part_num_), K(part_id));
+  }
+  return ret;
+}
 
 } // end of common
-} // end of oceanbase
+}
diff --git a/src/share/part/ob_part_desc_key.h b/src/share/part/ob_part_desc_key.h
index ebc48a22..f1b66763 100644
--- a/src/share/part/ob_part_desc_key.h
+++ b/src/share/part/ob_part_desc_key.h
@@ -15,7 +15,7 @@
 
 #include "share/part/ob_part_desc.h"
 #include "share/part/ob_part_mgr_util.h"
-
+#include "proxy/route/obproxy_part_mgr.h"
 namespace oceanbase
 {
 namespace common
@@ -36,23 +36,30 @@ class ObPartDescKey : public ObPartDesc
   void set_part_space(int64_t part_space) { part_space_ = part_space; }
   void set_first_part_id(int64_t first_part_id) { first_part_id_ = first_part_id; }
   int64_t get_first_part_id() { return first_part_id_; }
-  void set_part_key_type(const ObObjType obj_type) { obj_type_ = obj_type; }
-  void set_part_key_cs_type(const ObCollationType cs_type) { cs_type_ = cs_type; }
   void set_part_array(int64_t *part_array) { part_array_ = part_array; }
 
+  ObIArray<ObObjType> &get_obj_types() { return obj_types_; }
+  ObIArray<ObCollationType> &get_cs_types() { return cs_types_; }
+
   VIRTUAL_TO_STRING_KV("part_type", "key",
                        K_(part_num),
                        K_(part_space),
                        K_(first_part_id),
                        K_(part_level),
                        K_(part_func_type));
+private:
+  int calc_value_for_mysql(const ObObj *objs, int64_t objs_cnt, int64_t &result, ObPartDescCtx &ctx);
+  uint64_t calc_hash_value_with_seed(const ObObj &obj, const int64_t cluster_version, int64_t seed);
+  int calc_key_part_idx(const uint64_t val, const int64_t part_num, int64_t &partition_idx);
+  int get_part_hash_idx(const int64_t part_idx, int64_t &part_id);
+
 private:
   int64_t part_num_;
   int64_t part_space_;
   int64_t first_part_id_;
-  // TODO: add multiple key
-  ObObjType obj_type_;
-  ObCollationType cs_type_;
+  // multiple key
+  ObSEArray<ObObjType, 4> obj_types_;
+  ObSEArray<ObCollationType, 4> cs_types_;
   int64_t *part_array_;
 };
 
diff --git a/src/share/part/ob_part_desc_list.cpp b/src/share/part/ob_part_desc_list.cpp
index 44552d4a..1f23817f 100644
--- a/src/share/part/ob_part_desc_list.cpp
+++ b/src/share/part/ob_part_desc_list.cpp
@@ -53,50 +53,54 @@ int ObPartDescList::get_part(ObNewRange &range,
                              ObIArray<int64_t> &tablet_ids)
 {
   int ret = OB_SUCCESS;
-
+  ObNewRow src_row;
+  // for list partition, row in start_key_
+  src_row.assign(const_cast<ObObj*>(range.start_key_.get_obj_ptr()), range.start_key_.get_obj_cnt());
   if (OB_ISNULL(part_array_)
       || OB_UNLIKELY(part_array_size_ <= 0)) {
     ret = OB_INVALID_ARGUMENT;
     COMMON_LOG(WARN, "invalid argument, ", K_(part_array), K_(part_array_size), K(ret));
     // use the fisrt range as the type to cast
-  } else if (1 != range.get_start_key().get_obj_cnt()) { // single value
-    ret = OB_INVALID_ARGUMENT;
-    COMMON_LOG(DEBUG, "list part should be single key",
-                      "obj_cnt", range.get_start_key().get_obj_cnt(), K(ret));
   } else {
-    ObObj &src_obj = const_cast<ObObj &>(range.get_start_key().get_obj_ptr()[0]);
-    // use the first row cell as target obj
-    ObObj &target_obj = const_cast<ObObj &>(part_array_[0].rows_[0].get_cell(0));
-    if (OB_FAIL(cast_obj(src_obj, target_obj, allocator, ctx))) {
-      COMMON_LOG(INFO, "fail to cast obj", K(src_obj), K(target_obj), K(ret));
-    } else {
-      bool found = false;
-      for (int64_t i = 0; OB_SUCC(ret) && i < part_array_size_ && !found; ++i) {
-        if (i == default_part_array_idx_) {
-          continue;
-        }
-        for (int64_t j= 0; OB_SUCC(ret) && j < part_array_[i].rows_.count() && !found; ++j) {
-          if (part_array_[i].rows_[j].get_count() == 0) {
-            ret = OB_ERR_UNEXPECTED;
-            COMMON_LOG(WARN, "no cells in the row", K(part_array_[i].rows_[j]), K(ret));
-          } else if (src_obj == part_array_[i].rows_[j].get_cell(0)) {
+    bool found = false;
+    bool casted = false;
+    // cast src_row and compare with part array
+    for (int64_t i = 0; i < part_array_size_ && !found; i++) {
+      if (i == default_part_array_idx_) {
+        continue;
+      }
+      for (int64_t j = 0; j < part_array_[i].rows_.count() && !found; j++) {
+        if (part_array_[i].rows_[j].get_count() == 0) {
+          ret = OB_ERR_UNEXPECTED;
+          COMMON_LOG(WARN, "no cells in the row", K(part_array_[i].rows_[j]), K(ret));
+        } else {
+          // if not cast, cast first
+          if (!casted && OB_FAIL(cast_row(src_row, part_array_[i].rows_.at(j), allocator, ctx))) {
+            COMMON_LOG(WARN, "fail to cast row");
+            continue;
+          } else {
+            casted = true;
+          }
+          // if casted, then compare
+          if (casted && src_row == part_array_[i].rows_.at(j)) {
             found = true;
             if (OB_FAIL(part_ids.push_back(part_array_[i].part_id_))) {
               COMMON_LOG(WARN, "fail to push part id", K(ret));
             } else if (NULL != tablet_id_array_ && OB_FAIL(tablet_ids.push_back(tablet_id_array_[i]))) {
               COMMON_LOG(WARN, "fail to push tablet id", K(ret));
             }
-          } // end found
-        } // end for rows
-      } // end for part_array
-      if (!found && OB_INVALID_INDEX != default_part_array_idx_) {
-        // if no row cell matches, use default partition
-        COMMON_LOG(DEBUG, "will use default partition id", K(src_obj), K(ret));
-        if (OB_FAIL(part_ids.push_back(part_array_[default_part_array_idx_].part_id_))) {
-          COMMON_LOG(WARN, "fail to push part id", K(ret));
-        } else if (NULL != tablet_id_array_ && OB_FAIL(tablet_ids.push_back(tablet_id_array_[default_part_array_idx_]))) {
-          COMMON_LOG(WARN, "fail to push tablet id", K(ret));
+          } else {}
         }
+      } // end for rows
+    } // end for part_array
+
+    if (!found && OB_INVALID_INDEX != default_part_array_idx_) {
+      // if no row matches, use default partition
+      COMMON_LOG(DEBUG, "will use default partition id", K(src_row), K(ret));
+      if (OB_FAIL(part_ids.push_back(part_array_[default_part_array_idx_].part_id_))) {
+        COMMON_LOG(WARN, "fail to push part id", K(ret));
+      } else if (NULL != tablet_id_array_ && OB_FAIL(tablet_ids.push_back(tablet_id_array_[default_part_array_idx_]))) {
+        COMMON_LOG(WARN, "fail to push tablet id", K(ret));
       }
     }
   }
@@ -115,34 +119,27 @@ int ObPartDescList::get_part_by_num(const int64_t num, common::ObIArray<int64_t>
   return ret;
 }
 
-inline int ObPartDescList::cast_obj(ObObj &src_obj,
-                                    ObObj &target_obj,
-                                    ObIAllocator &allocator,
-                                    ObPartDescCtx &ctx)
+int ObPartDescList::cast_row(ObNewRow &src_row,
+                         ObNewRow &target_row,
+                         ObIAllocator &allocator,
+                         ObPartDescCtx &ctx)
 {
   int ret = OB_SUCCESS;
-  COMMON_LOG(DEBUG, "begin to cast obj for list", K(src_obj), K(target_obj));
-
-  ObTimeZoneInfo tz_info;
-  ObDataTypeCastParams dtc_params;
-  ObObjType obj_type = target_obj.get_type();
-
-  if (OB_FAIL(obproxy::proxy::ObExprCalcTool::build_dtc_params_with_tz_info(ctx.get_session_info(),
-                                                                            obj_type, tz_info, dtc_params))) {
-    COMMON_LOG(WARN, "fail to build dtc params with ctx session", K(ret), K(obj_type));
-  } else {
-    ObCastCtx cast_ctx(&allocator, &dtc_params, CM_NULL_ON_WARN, target_obj.get_collation_type());
-    const ObObj *res_obj = &src_obj;
-    ObAccuracy accuracy(accuracy_.valid_, accuracy_.length_, accuracy_.precision_, accuracy_.scale_);
-
-    // use src_obj as buf_obj
-    if (OB_FAIL(ObObjCasterV2::to_type(obj_type, target_obj.get_collation_type(), cast_ctx, src_obj, src_obj))) {
-      COMMON_LOG(WARN, "failed to cast obj", K(ret), K(src_obj), K(target_obj));
-    } else if (ctx.need_accurate()
-               && OB_FAIL(obj_accuracy_check(cast_ctx, accuracy, target_obj.get_collation_type(), *res_obj, src_obj, res_obj))) {
-      COMMON_LOG(WARN, "fail to obj accuracy check", K(ret), K(src_obj), K(obj_type));
+  int64_t min_col_cnt = std::min(src_row.count_, target_row.count_);
+  for (int64_t i = 0; i < min_col_cnt && OB_SUCC(ret); ++i) {
+    if (src_row.get_cell(i).is_max_value() ||
+        src_row.get_cell(i).is_min_value()) {
+      COMMON_LOG(DEBUG, "skip min/max obj");
+      continue;
+    }
+    if (OB_FAIL(cast_obj(src_row.get_cell(i),
+                         target_row.get_cell(i),
+                         allocator,
+                         ctx,
+                         accuracies_.at(i)))) {
+      COMMON_LOG(INFO, "fail to cast obj", K(i), K(ret));
     } else {
-      COMMON_LOG(DEBUG, "succ to cast obj for list", K(src_obj), K(target_obj));
+      // do nothing
     }
   }
 
diff --git a/src/share/part/ob_part_desc_list.h b/src/share/part/ob_part_desc_list.h
index 13f5c314..f324a536 100644
--- a/src/share/part/ob_part_desc_list.h
+++ b/src/share/part/ob_part_desc_list.h
@@ -16,6 +16,7 @@
 #include "share/part/ob_part_desc.h"
 #include "common/ob_row.h"
 #include "lib/container/ob_se_array.h"
+#include "proxy/route/obproxy_part_mgr.h"
 
 namespace oceanbase
 {
@@ -54,12 +55,13 @@ class ObPartDescList : public ObPartDesc
     return OB_SUCCESS;
   }
 
-  DECLARE_VIRTUAL_TO_STRING;
-private:
-  int cast_obj(ObObj &src_obj,
-               ObObj &target_obj,
+  int cast_row(ObNewRow &src_row,
+               ObNewRow &target_row,
                ObIAllocator &allocator,
                ObPartDescCtx &ctx);
+
+  DECLARE_VIRTUAL_TO_STRING;
+
 private:
   ListPartition *part_array_;
   int64_t part_array_size_;
diff --git a/src/share/part/ob_part_desc_range.cpp b/src/share/part/ob_part_desc_range.cpp
index c8821ce6..120049b0 100644
--- a/src/share/part/ob_part_desc_range.cpp
+++ b/src/share/part/ob_part_desc_range.cpp
@@ -173,17 +173,23 @@ int ObPartDescRange::get_part_by_num(const int64_t num, common::ObIArray<int64_t
 }
 
 int ObPartDescRange::cast_key(ObRowkey &src_key,
-                              ObRowkey &target_key,
-                              ObIAllocator &allocator,
-                              ObPartDescCtx &ctx)
+                         ObRowkey &target_key,
+                         ObIAllocator &allocator,
+                         ObPartDescCtx &ctx)
 {
   int ret = OB_SUCCESS;
   int64_t min_col_cnt = std::min(src_key.get_obj_cnt(), target_key.get_obj_cnt());
   for (int64_t i = 0; i < min_col_cnt && OB_SUCC(ret); ++i) {
+    if (src_key.get_obj_ptr()[i].is_max_value() ||
+        src_key.get_obj_ptr()[i].is_min_value()) {
+      COMMON_LOG(DEBUG, "skip min/max obj");
+      continue;
+    }
     if (OB_FAIL(cast_obj(const_cast<ObObj &>(src_key.get_obj_ptr()[i]),
                          const_cast<ObObj &>(target_key.get_obj_ptr()[i]),
                          allocator,
-                         ctx))) {
+                         ctx,
+                         accuracies_.at(i)))) {
       COMMON_LOG(INFO, "fail to cast obj", K(i), K(ret));
     } else {
       // do nothing
@@ -192,39 +198,5 @@ int ObPartDescRange::cast_key(ObRowkey &src_key,
   return ret;
 }
 
-inline int ObPartDescRange::cast_obj(ObObj &src_obj,
-                                     ObObj &target_obj,
-                                     ObIAllocator &allocator,
-                                     ObPartDescCtx &ctx)
-{
-  int ret = OB_SUCCESS;
-  COMMON_LOG(DEBUG, "begin to cast obj for range", K(src_obj), K(target_obj));
-
-  ObTimeZoneInfo tz_info;
-  ObDataTypeCastParams dtc_params;
-  ObObjType obj_type = target_obj.get_type();
-
-  if (OB_FAIL(obproxy::proxy::ObExprCalcTool::build_dtc_params_with_tz_info(ctx.get_session_info(),
-                                                                            obj_type, tz_info, dtc_params))) {
-    COMMON_LOG(WARN, "fail to build dtc params with ctx session", K(ret), K(obj_type));
-  } else {
-    ObCastCtx cast_ctx(&allocator, &dtc_params, CM_NULL_ON_WARN, target_obj.get_collation_type());
-    const ObObj *res_obj = &src_obj;
-    ObAccuracy accuracy(accuracy_.valid_, accuracy_.length_, accuracy_.precision_, accuracy_.scale_);
-    
-    // use src_obj as buf_obj
-    if (OB_FAIL(ObObjCasterV2::to_type(obj_type, target_obj.get_collation_type(), cast_ctx, src_obj, src_obj))) {
-      COMMON_LOG(WARN, "failed to cast obj", K(ret), K(src_obj), K(target_obj));
-    } else if (ctx.need_accurate()
-               && OB_FAIL(obj_accuracy_check(cast_ctx, accuracy, target_obj.get_collation_type(), *res_obj, src_obj, res_obj))) {
-      COMMON_LOG(WARN, "fail to obj accuracy check", K(ret), K(src_obj));
-    } else {
-      COMMON_LOG(DEBUG, "end to cast obj for range", K(src_obj), K(target_obj));
-    }
-  }
-
-  return ret;
-}
-
 } // end of common
 } // end of oceanbase
diff --git a/src/share/part/ob_part_desc_range.h b/src/share/part/ob_part_desc_range.h
index 24f343c1..6baabf8a 100644
--- a/src/share/part/ob_part_desc_range.h
+++ b/src/share/part/ob_part_desc_range.h
@@ -15,6 +15,7 @@
 
 #include "share/part/ob_part_desc.h"
 #include "lib/container/ob_se_array.h"
+#include "proxy/route/obproxy_part_mgr.h"
 
 namespace oceanbase
 {
@@ -54,6 +55,11 @@ class ObPartDescRange : public ObPartDesc
     return common::OB_SUCCESS;
   }
 
+  int cast_key(ObRowkey &src_key,
+               ObRowkey &target_key,
+               ObIAllocator &allocator,
+               ObPartDescCtx &ctx);
+
   DECLARE_VIRTUAL_TO_STRING;
 private:
   int64_t get_start(const RangePartition *part_array,
@@ -64,15 +70,6 @@ class ObPartDescRange : public ObPartDesc
                   const int64_t size,
                   const ObNewRange &range);
 
-  int cast_key(ObRowkey &src_key,
-               ObRowkey &target_key,
-               ObIAllocator &allocator,
-               ObPartDescCtx &ctx);
-
-  int cast_obj(ObObj &src_obj,
-               ObObj &target_obj,
-               ObIAllocator &allocator,
-               ObPartDescCtx &ctx);
 private:
   RangePartition *part_array_;
   int64_t part_array_size_;
diff --git a/unittest/obproxy/ob_expr_parser_checker.cpp b/unittest/obproxy/ob_expr_parser_checker.cpp
index efe5218b..c6d61cc4 100644
--- a/unittest/obproxy/ob_expr_parser_checker.cpp
+++ b/unittest/obproxy/ob_expr_parser_checker.cpp
@@ -124,7 +124,6 @@ void ObExprParserChecker::build_schema(std::string &extra_str, ObExprParseResult
   }
 
   result.part_key_info_.key_num_ = 0;
-  result.target_mask_ = 0;
   while (true) {
     ObProxyParseString part_key_name = get_value(extra_str, "part_key", pos);
     ObProxyParseString part_key_level = get_value(extra_str, "part_level", pos);
@@ -143,11 +142,6 @@ void ObExprParserChecker::build_schema(std::string &extra_str, ObExprParseResult
         result.part_key_info_.part_keys_[result.part_key_info_.key_num_].idx_ = part_key_idx.str_[0] - '0';
       }
       ++result.part_key_info_.key_num_;
-      if (PART_KEY_LEVEL_ONE == level) {
-        result.target_mask_ |= BOTH_BOUND_FLAG;
-      } else {
-        result.target_mask_ |= (BOTH_BOUND_FLAG << 2);
-      }
     }
   }
 }
diff --git a/unittest/obproxy/obproxy_parser_test.cpp b/unittest/obproxy/obproxy_parser_test.cpp
index 4e45de08..0a8ab8d0 100755
--- a/unittest/obproxy/obproxy_parser_test.cpp
+++ b/unittest/obproxy/obproxy_parser_test.cpp
@@ -51,19 +51,19 @@ void show_sql_result(SqlFieldResult& sql_result) {
   fprintf(stdout, "========== sql_result is ===========\n");
   for(int i = 0; i < sql_result.field_num_; i++) {
     char buf[256];
-    printf("column_name:length:%d\t", sql_result.fields_[i].column_name_.string_.length());
+    printf("column_name:length:%d\t", sql_result.fields_[i]->column_name_.config_string_.length());
     snprintf(buf, 256, "column_name:%.*s",
-      sql_result.fields_[i].column_name_.string_.length(),
-      sql_result.fields_[i].column_name_.string_.ptr());
+      sql_result.fields_[i]->column_name_.config_string_.length(),
+      sql_result.fields_[i]->column_name_.config_string_.ptr());
     printf("%s\t", buf);
     //printf(" %s ", function_type_to_string(sql_result.fields_[i].type_).c_str());
-    printf(" (%s) ", token_type_to_string(sql_result.fields_[i].value_type_).c_str());
-    if(sql_result.fields_[i].value_type_ == TOKEN_INT_VAL) {
-      snprintf(buf, 256, "column_value:%ld", sql_result.fields_[i].column_int_value_);
-    } else if (sql_result.fields_[i].value_type_ == TOKEN_STR_VAL){
-     snprintf(buf, sql_result.fields_[i].column_value_.config_string_.length()+1, "column_value:%.*s",
-      sql_result.fields_[i].column_value_.config_string_.length(),
-      sql_result.fields_[i].column_value_.config_string_.ptr());
+    printf(" (%s) ", token_type_to_string(sql_result.fields_[i]->value_type_).c_str());
+    if(sql_result.fields_[i]->value_type_ == TOKEN_INT_VAL) {
+      snprintf(buf, 256, "column_value:%ld", sql_result.fields_[i]->column_int_value_);
+    } else if (sql_result.fields_[i]->value_type_ == TOKEN_STR_VAL){
+     snprintf(buf, sql_result.fields_[i]->column_value_.config_string_.length()+1, "column_value:%.*s",
+      sql_result.fields_[i]->column_value_.config_string_.length(),
+      sql_result.fields_[i]->column_value_.config_string_.ptr());
    }
    printf("%s\n", buf);
   //   fprintf(stdout, "%s %s %s\n", sql_result.fields_[i].column_name_,
@@ -137,7 +137,6 @@ void build_schema(std::string &extra_str, ObExprParseResult &result)
   pos = 0;
 
   result.part_key_info_.key_num_ = 0;
-  result.target_mask_ = 0;
   while (true) {
     ObProxyParseString part_key_name = get_value(extra_str, "part_key", pos);
     ObProxyParseString part_key_level = get_value(extra_str, "part_level", pos);
@@ -162,11 +161,6 @@ void build_schema(std::string &extra_str, ObExprParseResult &result)
         result.part_key_info_.part_keys_[result.part_key_info_.key_num_].idx_ = part_key_idx.str_[0] - '0';
       }
       ++result.part_key_info_.key_num_;
-      if (PART_KEY_LEVEL_ONE == level) {
-        result.target_mask_ |= BOTH_BOUND_FLAG;
-      } else {
-        result.target_mask_ |= (BOTH_BOUND_FLAG << 2);
-      }
     }
   }
 }
@@ -207,8 +201,8 @@ void extract_local_fileds(const ObExprParseResult& result, ObProxyMysqlRequest &
       printf("Got an empty relation_expr");
       continue;
     }
-    SqlField field;
-    field.reset();
+    SqlField *field = NULL;
+    SqlField::alloc_sql_field(field);
     //sql_result.fields_[sql_result.field_num_].type_ = relation_expr->type_;
     if(relation_expr->left_value_ != NULL 
       && relation_expr->left_value_->head_ != NULL
@@ -217,9 +211,9 @@ void extract_local_fileds(const ObExprParseResult& result, ObProxyMysqlRequest &
         ObString tmp_column(relation_expr->left_value_->head_->column_name_.str_len_,
           relation_expr->left_value_->head_->column_name_.str_);
         LOG_DEBUG("column_name is ", K(tmp_column));
-        field.column_name_.set(tmp_column);
+        field->column_name_.set_value(tmp_column);
 
-        LOG_DEBUG("field.column", K(field.column_name_));
+        LOG_DEBUG("field->column", K(field->column_name_));
         // strncpy(sql_result.fields_[sql_result.field_num_].column_name_,
         //           relation_expr->left_value_->head_->column_name_.str_,
         //           relation_expr->left_value_->head_->column_name_.str_len_);
@@ -234,19 +228,19 @@ void extract_local_fileds(const ObExprParseResult& result, ObProxyMysqlRequest &
     if(relation_expr->right_value_ != NULL
       && relation_expr->right_value_->head_ != NULL) {
       if(relation_expr->right_value_->head_->type_ == TOKEN_INT_VAL) {
-        field.value_type_ = TOKEN_INT_VAL;
-        field.column_int_value_ = relation_expr->right_value_->head_->int_value_;
-        LOG_DEBUG("field.value", K(field.column_int_value_));
+        field->value_type_ = TOKEN_INT_VAL;
+        field->column_int_value_ = relation_expr->right_value_->head_->int_value_;
+        LOG_DEBUG("field->value", K(field->column_int_value_));
           // snprintf(sql_result.fields_[sql_result.field_num_].column_value_,
           //            32, "%ld", relation_expr->right_value_->head_->int_value_);
           // sql_result.fields_[sql_result.field_num_].column_value_ = "";
           // sql_result.fields_[sql_result.field_num_].column_value_ = std::string(buf);
       } else if(relation_expr->right_value_->head_->type_ == TOKEN_STR_VAL) {
-       field.value_type_ = TOKEN_STR_VAL;
-       field.column_value_.config_string_.assign_ptr(
+       field->value_type_ = TOKEN_STR_VAL;
+       field->column_value_.config_string_.assign_ptr(
         relation_expr->right_value_->head_->str_value_.str_,
         relation_expr->right_value_->head_->str_value_.str_len_);
-        LOG_DEBUG("field.column_value", K(field.column_value_));
+        LOG_DEBUG("field->column_value", K(field->column_value_));
 
           // strncpy(sql_result.fields_[sql_result.field_num_].column_value_,
           //           relation_expr->right_value_->head_->str_value_.str_,
diff --git a/unittest/obproxy/test_ldc_location.cpp b/unittest/obproxy/test_ldc_location.cpp
index 78a2fe34..cc2c69fd 100644
--- a/unittest/obproxy/test_ldc_location.cpp
+++ b/unittest/obproxy/test_ldc_location.cpp
@@ -27,7 +27,7 @@
     EXPECT_TRUE(is_partition_server == item->is_partition_server_);\
     EXPECT_TRUE(item->is_used_);\
     EXPECT_FALSE(item->is_force_congested_);\
-    EXPECT_EQ(ObAddr::convert_ipv4_addr(addr), item->replica_->server_.get_ipv4());\
+    EXPECT_EQ(convert_ipv4_addr_utils(addr), item->replica_->server_.get_ipv4());\
     EXPECT_EQ(port, item->replica_->server_.get_port());\
     EXPECT_EQ(type1, test_ldc_route.get_curr_route_type());\
     EXPECT_TRUE(!test_ldc_route.is_reach_end());
@@ -41,6 +41,25 @@ namespace obproxy
 namespace proxy
 {
 
+static uint32_t convert_ipv4_addr_utils(const char *ip)
+{
+  in_addr binary;
+  int iret = 0;
+  uint32_t result = 0;
+
+  if (!OB_ISNULL(ip)) {
+    memset(&binary, 0, sizeof (binary));
+    iret = inet_pton(AF_INET, ip, &binary);
+    if (iret == -1) {        // no support family
+      binary.s_addr = 0;
+    } else if (iret == 0) {  // invalid ip string
+      binary.s_addr = 0;
+    }
+    result = ntohl(binary.s_addr);
+  }
+  return result;
+}
+
 
 class TesLDCLocation : public ::testing::Test
 {
@@ -182,7 +201,7 @@ void TesLDCLocation::test_get_next_item(ObLDCRoute &test_ldc_route,
   ASSERT_TRUE(test_ldc_route.disable_merge_status_check_ || is_merge == item->is_merging_);
   ASSERT_TRUE(zone_type == item->zone_type_);
   ASSERT_TRUE(is_partition == item->is_partition_server_);
-  ASSERT_EQ(ObAddr::convert_ipv4_addr(ip_str), item->replica_->server_.get_ipv4());
+  ASSERT_EQ(convert_ipv4_addr_utils(ip_str), item->replica_->server_.get_ipv4());
   ASSERT_EQ(port, item->replica_->server_.get_port());
   ASSERT_EQ(route_type, test_ldc_route.get_curr_route_type());
   ASSERT_TRUE(!test_ldc_route.is_reach_end());
@@ -206,7 +225,7 @@ void TesLDCLocation::test_get_next_item(ObLDCRoute &test_ldc_route,
     ASSERT_TRUE(role == item->replica_->role_);
   }
   ASSERT_TRUE(is_partition == item->is_partition_server_);
-  ASSERT_EQ(ObAddr::convert_ipv4_addr(ip_str), item->replica_->server_.get_ipv4());
+  ASSERT_EQ(convert_ipv4_addr_utils(ip_str), item->replica_->server_.get_ipv4());
   ASSERT_EQ(port, item->replica_->server_.get_port());
   ASSERT_EQ(route_type, test_ldc_route.get_curr_route_type());
   ASSERT_TRUE(!test_ldc_route.is_reach_end());
@@ -429,15 +448,15 @@ TEST_F(TesLDCLocation, assign)
   ObLDCItem *item_array = const_cast<ObLDCItem *>(test_ldc.get_item_array());
   for (int64_t i = 0; i < 10; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("1.1.1.1"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("1.1.1.1"), item_array[i].replica_->server_.get_ipv4());
   }
   for (int64_t i = 10; i < 25; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("2.2.2.2"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("2.2.2.2"), item_array[i].replica_->server_.get_ipv4());
   }
   for (int64_t i = 25; i < 40; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
   }
 
   //empty name treat as do not use
@@ -459,15 +478,15 @@ TEST_F(TesLDCLocation, assign)
   item_array = const_cast<ObLDCItem *>(test_ldc.get_item_array());
   for (int64_t i = 0; i < 10; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("1.1.1.1"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("1.1.1.1"), item_array[i].replica_->server_.get_ipv4());
   }
   for (int64_t i = 10; i < 25; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("2.2.2.2"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("2.2.2.2"), item_array[i].replica_->server_.get_ipv4());
   }
   for (int64_t i = 25; i < 40; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
   }
 
   //right name, but congestion is not available
@@ -489,19 +508,19 @@ TEST_F(TesLDCLocation, assign)
   item_array = const_cast<ObLDCItem *>(test_ldc.get_item_array());
   for (int64_t i = 0; i < 15; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("1.1.1.1"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("1.1.1.1"), item_array[i].replica_->server_.get_ipv4());
   }
   for (int64_t i = 15; i < 30; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("2.2.2.2"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("2.2.2.2"), item_array[i].replica_->server_.get_ipv4());
   }
   for (int64_t i = 30; i < 45; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
   }
   for (int64_t i = 45; i < 60; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("4.4.4.4"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("4.4.4.4"), item_array[i].replica_->server_.get_ipv4());
   }
 
   //right name
@@ -522,15 +541,15 @@ TEST_F(TesLDCLocation, assign)
   item_array = const_cast<ObLDCItem *>(test_ldc.get_item_array());
   for (int64_t i = site_start_index_array[SAME_IDC]; i < site_start_index_array[SAME_REGION]; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("1.1.1.1"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("1.1.1.1"), item_array[i].replica_->server_.get_ipv4());
   }
   for (int64_t i = site_start_index_array[SAME_REGION]; i < site_start_index_array[OTHER_REGION]; i++) {
     EXPECT_EQ(SAME_REGION, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("2.2.2.2"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("2.2.2.2"), item_array[i].replica_->server_.get_ipv4());
   }
   for (int64_t i = site_start_index_array[OTHER_REGION]; i < site_start_index_array[MAX_IDC_TYPE]; i++) {
     EXPECT_EQ(OTHER_REGION, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
   }
 
   for (int64_t i = site_start_index_array[SAME_IDC]; i < site_start_index_array[SAME_IDC] + 5; i++) {
@@ -646,11 +665,11 @@ TEST_F(TesLDCLocation, assign_other_region)
   ObLDCItem *item_array = const_cast<ObLDCItem *>(test_ldc.get_item_array());
   for (int64_t i = site_start_index_array[SAME_IDC]; i < site_start_index_array[SAME_REGION]; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
   }
   for (int64_t i = site_start_index_array[OTHER_REGION]; i < site_start_index_array[MAX_IDC_TYPE]; i++) {
     EXPECT_EQ(OTHER_REGION, item_array[i].idc_type_);
-    EXPECT_NE(ObAddr::convert_ipv4_addr("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_NE(convert_ipv4_addr_utils("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
   }
 
   for (int64_t i = site_start_index_array[SAME_IDC]; i < site_start_index_array[SAME_IDC] + 5; i++) {
@@ -747,15 +766,15 @@ TEST_F(TesLDCLocation, assign_non_ldc)
   ObLDCItem *item_array = const_cast<ObLDCItem *>(test_ldc.get_item_array());
   for (int64_t i = 0; i < 10; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("1.1.1.1"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("1.1.1.1"), item_array[i].replica_->server_.get_ipv4());
   }
   for (int64_t i = 10; i < 25; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("2.2.2.2"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("2.2.2.2"), item_array[i].replica_->server_.get_ipv4());
   }
   for (int64_t i = 25; i < 40; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
   }
 
   for (int64_t i = 0; i < 10; i++) {
@@ -836,7 +855,7 @@ TEST_F(TesLDCLocation, fill_strong_read_location)
   ObString proxy_primary_zone_name;
   bool need_skip_leader = false;
   bool is_random_route_mode = false;
-  ASSERT_EQ(OB_ERR_UNEXPECTED, ObLDCLocation::fill_strong_read_location(&pl, dummy_ldc, leader_item, target_ldc, 
+  ASSERT_EQ(OB_ERR_UNEXPECTED, ObLDCLocation::fill_strong_read_location(&pl, dummy_ldc, leader_item, target_ldc,
             entry_need_update, is_only_readwrite_zone, need_use_dup_replica, need_skip_leader, is_random_route_mode,
             servers_info, region_names, proxy_primary_zone_name, ObString(), NULL));
 
@@ -1343,19 +1362,19 @@ TEST_F(TesLDCLocation, get_next_item)
   item_array = const_cast<ObLDCItem *>(test_ldc.get_item_array());
   for (int64_t i = site_start_index_array[SAME_IDC]; i < site_start_index_array[SAME_REGION]; i++) {
     EXPECT_EQ(SAME_IDC, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("1.1.1.1"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("1.1.1.1"), item_array[i].replica_->server_.get_ipv4());
     EXPECT_EQ((i < 10 ? ZONE_TYPE_READWRITE : ZONE_TYPE_READONLY), item_array[i].zone_type_);
     EXPECT_TRUE((i % 10 < 5) == item_array[i].is_merging_);
   }
   for (int64_t i = site_start_index_array[SAME_REGION]; i < site_start_index_array[OTHER_REGION]; i++) {
     EXPECT_EQ(SAME_REGION, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("2.2.2.2"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("2.2.2.2"), item_array[i].replica_->server_.get_ipv4());
     EXPECT_EQ((i < (10 + site_start_index_array[SAME_REGION])? ZONE_TYPE_READWRITE : ZONE_TYPE_READONLY), item_array[i].zone_type_);
     EXPECT_TRUE((i % 10 < 5) == item_array[i].is_merging_);
   }
   for (int64_t i = site_start_index_array[OTHER_REGION]; i < site_start_index_array[MAX_IDC_TYPE]; i++) {
     EXPECT_EQ(OTHER_REGION, item_array[i].idc_type_);
-    EXPECT_EQ(ObAddr::convert_ipv4_addr("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
+    EXPECT_EQ(convert_ipv4_addr_utils("3.3.3.3"), item_array[i].replica_->server_.get_ipv4());
     EXPECT_EQ((i < (10 + site_start_index_array[OTHER_REGION]) ? ZONE_TYPE_READWRITE : ZONE_TYPE_READONLY), item_array[i].zone_type_);
     EXPECT_TRUE((i % 10 < 5) == item_array[i].is_merging_);
   }
diff --git a/unittest/obproxy/test_proxy_table_processor_utils.cpp b/unittest/obproxy/test_proxy_table_processor_utils.cpp
index 02953428..4b5e0787 100644
--- a/unittest/obproxy/test_proxy_table_processor_utils.cpp
+++ b/unittest/obproxy/test_proxy_table_processor_utils.cpp
@@ -42,8 +42,8 @@ TEST_F(TestProxyTableProcessorUtils, test_get_proxy_local_addr)
   ASSERT_EQ(addr, addr_org);
 
   ObAddr my_addr;
-  char ip_str[OB_IP_STR_BUFF] = {'\0'};
-  int ret = ObProxyTableProcessorUtils::get_one_local_addr(ip_str, OB_IP_STR_BUFF);
+  char ip_str[MAX_IP_ADDR_LENGTH] = {'\0'};
+  int ret = ObProxyTableProcessorUtils::get_one_local_addr(ip_str, MAX_IP_ADDR_LENGTH);
   ASSERT_EQ(OB_SUCCESS, ret);
   my_addr.set_ipv4_addr(ip_str, static_cast<uint16_t>(config.listen_port));
 
@@ -63,15 +63,15 @@ TEST_F(TestProxyTableProcessorUtils, test_get_proxy_local_addr_inherited)
   int ret = OB_SUCCESS;
   ObHotUpgraderInfo &info = get_global_hot_upgrade_info();
   info.is_inherited_ = true;
-  info.fd_ = NO_FD;
+  info.ipv4_fd_ = NO_FD;
   ObAddr addr;
   ret = ObProxyTableProcessorUtils::get_proxy_local_addr(addr);
   ASSERT_EQ(OB_ERR_UNEXPECTED, ret);
 
 
 
-  char ip_str[OB_IP_STR_BUFF] = {'\0'};
-  ret = ObProxyTableProcessorUtils::get_one_local_addr(ip_str, OB_IP_STR_BUFF);
+  char ip_str[MAX_IP_ADDR_LENGTH] = {'\0'};
+  ret = ObProxyTableProcessorUtils::get_one_local_addr(ip_str, MAX_IP_ADDR_LENGTH);
   ASSERT_EQ(OB_SUCCESS, ret);
 
   struct sockaddr_in s_add;
@@ -87,7 +87,7 @@ TEST_F(TestProxyTableProcessorUtils, test_get_proxy_local_addr_inherited)
     close(test_fd);
   }
   ASSERT_TRUE(-1 != bind_ret);
-  info.fd_ = test_fd;
+  info.ipv4_fd_ = test_fd;
   ret = ObProxyTableProcessorUtils::get_proxy_local_addr(addr);
   ASSERT_EQ(OB_SUCCESS, ret);
   ObAddr addr2(ObAddr::IPV4, ip_str, port);
@@ -107,7 +107,7 @@ TEST_F(TestProxyTableProcessorUtils, test_get_proxy_local_addr_inherited)
     close(test_fd);
   }
   ASSERT_TRUE(-1 != bind_ret);
-  info.fd_ = test_fd;
+  info.ipv4_fd_ = test_fd;
   ret = ObProxyTableProcessorUtils::get_proxy_local_addr(addr);
   ASSERT_EQ(OB_SUCCESS, ret);
   addr2.reset();
diff --git a/unittest/obproxy/test_tenant_processor.cpp b/unittest/obproxy/test_tenant_processor.cpp
index fdfad609..70c48685 100644
--- a/unittest/obproxy/test_tenant_processor.cpp
+++ b/unittest/obproxy/test_tenant_processor.cpp
@@ -28,7 +28,6 @@
  * limitations under the License.
  */
 
-//#define private public
 #define USING_LOG_PREFIX PROXY
 #include <gtest/gtest.h>
 #include <sqlite/sqlite3.h>
@@ -357,21 +356,25 @@ TEST_F(TestTenantProcessor, test_execute)
 
   SqlFieldResult sql_result;
   sql_result.field_num_ = 4;
-  SqlField sql_field;
-  sql_field.column_name_.set("cluster");
-  sql_field.column_value_.set_value("ob_cluster");
+  SqlField *sql_field = NULL;
+  SqlField::alloc_sql_field(sql_field);
+  sql_field->column_name_.set_value("cluster");
+  sql_field->column_value_.set_value("ob_cluster");
   sql_result.fields_.push_back(sql_field);
 
-  sql_field.column_name_.set("tenant");
-  sql_field.column_value_.set_value("ob_tenant");
+  SqlField::alloc_sql_field(sql_field);
+  sql_field->column_name_.set_value("tenant");
+  sql_field->column_value_.set_value("ob_tenant");
   sql_result.fields_.push_back(sql_field);
 
-  sql_field.column_name_.set("name");
-  sql_field.column_value_.set_value("resource_max_connections");
+  SqlField::alloc_sql_field(sql_field);
+  sql_field->column_name_.set_value("name");
+  sql_field->column_value_.set_value("resource_max_connections");
   sql_result.fields_.push_back(sql_field);
 
-  sql_field.column_name_.set("value");
-  sql_field.column_value_.set_value("[{\"vip\": \"127.0.0.1\", \"value\": 5000}]");
+  SqlField::alloc_sql_field(sql_field);
+  sql_field->column_name_.set_value("value");
+  sql_field->column_value_.set_value("[{\"vip\": \"127.0.0.1\", \"value\": 5000}]");
   sql_result.fields_.push_back(sql_field);
 
   ObCloudFnParams cloud_params;
@@ -403,21 +406,25 @@ TEST_F(TestTenantProcessor, test_rollback)
 
   SqlFieldResult sql_result;
   sql_result.field_num_ = 4;
-  SqlField sql_field;
-  sql_field.column_name_.set("cluster");
-  sql_field.column_value_.set_value("ob_cluster");
+  SqlField *sql_field = NULL;
+  SqlField::alloc_sql_field(sql_field);
+  sql_field->column_name_.set_value("cluster");
+  sql_field->column_value_.set_value("ob_cluster");
   sql_result.fields_.push_back(sql_field);
 
-  sql_field.column_name_.set("tenant");
-  sql_field.column_value_.set_value("ob_tenant");
+  SqlField::alloc_sql_field(sql_field);
+  sql_field->column_name_.set_value("tenant");
+  sql_field->column_value_.set_value("ob_tenant");
   sql_result.fields_.push_back(sql_field);
 
-  sql_field.column_name_.set("name");
-  sql_field.column_value_.set_value("resource_max_connections");
+  SqlField::alloc_sql_field(sql_field);
+  sql_field->column_name_.set_value("name");
+  sql_field->column_value_.set_value("resource_max_connections");
   sql_result.fields_.push_back(sql_field);
 
-  sql_field.column_name_.set("value");
-  sql_field.column_value_.set_value("[{\"vip\": \"127.0.0.1\", \"value\": 5000}]");
+  SqlField::alloc_sql_field(sql_field);
+  sql_field->column_name_.set_value("value");
+  sql_field->column_value_.set_value("[{\"vip\": \"127.0.0.1\", \"value\": 5000}]");
   sql_result.fields_.push_back(sql_field);
 
   ObCloudFnParams cloud_params;
@@ -452,21 +459,21 @@ TEST_F(TestTenantProcessor, test_execute_update_value)
   SqlFieldResult sql_result;
   sql_result.field_num_ = 4;
   SqlField sql_field[4];
-  sql_field[0].column_name_.set("cluster");
+  sql_field[0].column_name_.set_value("cluster");
   sql_field[0].column_value_.set_value("ob_cluster");
-  sql_result.fields_.push_back(sql_field[0]);
+  sql_result.fields_.push_back(&sql_field[0]);
 
-  sql_field[1].column_name_.set("tenant");
+  sql_field[1].column_name_.set_value("tenant");
   sql_field[1].column_value_.set_value("ob_tenant");
-  sql_result.fields_.push_back(sql_field[1]);
+  sql_result.fields_.push_back(&sql_field[1]);
 
-  sql_field[2].column_name_.set("name");
+  sql_field[2].column_name_.set_value("name");
   sql_field[2].column_value_.set_value("resource_max_connections");
-  sql_result.fields_.push_back(sql_field[2]);
+  sql_result.fields_.push_back(&sql_field[2]);
 
-  sql_field[3].column_name_.set("value");
-  sql_field[3].column_value_.set_value("[{\"vip\": \"127.0.0.1\", \"value\": 5000}, {\"vip\": \"127.0.0.2\", \"value\": 6000}]");
-  sql_result.fields_.push_back(sql_field[3]);
+  sql_field[3].column_name_.set_value("value");
+  sql_field[3].column_value_.set_value("[{\"vip\": \"127.0.0.1\", \"value\": 5000}, {\"vip\": \"10.8.17.120\", \"value\": 6000}]");
+  sql_result.fields_.push_back(&sql_field[3]);
 
   ObCloudFnParams cloud_params;
   cloud_params.stmt_type_ = OBPROXY_T_REPLACE;
@@ -487,14 +494,19 @@ TEST_F(TestTenantProcessor, test_execute_update_value)
   ObResourceUnitTableProcessor::commit(&cloud_params, true);
   LOG_DEBUG("success1");
 
+  SqlField tmp_field[4];
+  tmp_field[0] = sql_field[0];
+  tmp_field[1] = sql_field[1];
+  tmp_field[2] = sql_field[2];
+  tmp_field[3] = sql_field[3];
   sql_result.reset();
   sql_result.field_num_ = 4;
-  sql_result.fields_.push_back(sql_field[0]);
-  sql_result.fields_.push_back(sql_field[1]);
-  sql_result.fields_.push_back(sql_field[2]);
-  sql_field[3].column_name_.set("value");
-  sql_field[3].column_value_.set_value("[{\"vip\": \"127.0.0.3\", \"value\": 4000}, {\"vip\": \"127.0.0.2\", \"value\": 7777}]");
-  sql_result.fields_.push_back(sql_field[3]);
+  sql_result.fields_.push_back(&tmp_field[0]);
+  sql_result.fields_.push_back(&tmp_field[1]);
+  sql_result.fields_.push_back(&tmp_field[2]);
+  sql_field[3].column_name_.set_value("value");
+  sql_field[3].column_value_.set_value("[{\"vip\": \"127.0.0.3\", \"value\": 4000}, {\"vip\": \"10.8.17.120\", \"value\": 7777}]");
+  sql_result.fields_.push_back(&tmp_field[3]);
   cloud_params.fields_ = &sql_result;
 
   ASSERT_EQ(0, ObResourceUnitTableProcessor::execute(&cloud_params));
@@ -527,21 +539,21 @@ TEST_F(TestTenantProcessor, test_delete_tenant)
   SqlFieldResult sql_result;
   sql_result.field_num_ = 4;
   SqlField sql_field[4];
-  sql_field[0].column_name_.set("cluster");
+  sql_field[0].column_name_.set_value("cluster");
   sql_field[0].column_value_.set_value("ob_cluster");
-  sql_result.fields_.push_back(sql_field[0]);
+  sql_result.fields_.push_back(&sql_field[0]);
 
-  sql_field[1].column_name_.set("tenant");
+  sql_field[1].column_name_.set_value("tenant");
   sql_field[1].column_value_.set_value("ob_tenant");
-  sql_result.fields_.push_back(sql_field[1]);
+  sql_result.fields_.push_back(&sql_field[1]);
 
-  sql_field[2].column_name_.set("name");
+  sql_field[2].column_name_.set_value("name");
   sql_field[2].column_value_.set_value("resource_max_connections");
-  sql_result.fields_.push_back(sql_field[2]);
+  sql_result.fields_.push_back(&sql_field[2]);
 
-  sql_field[3].column_name_.set("value");
-  sql_field[3].column_value_.set_value("[{\"vip\": \"127.0.0.1\", \"value\": 5000}, {\"vip\": \"127.0.0.2\", \"value\": 6000}]");
-  sql_result.fields_.push_back(sql_field[3]);
+  sql_field[3].column_name_.set_value("value");
+  sql_field[3].column_value_.set_value("[{\"vip\": \"127.0.0.1\", \"value\": 5000}, {\"vip\": \"10.8.17.120\", \"value\": 6000}]");
+  sql_result.fields_.push_back(&sql_field[3]);
 
   ObCloudFnParams cloud_params;
   cloud_params.stmt_type_ = OBPROXY_T_REPLACE;
@@ -561,16 +573,21 @@ TEST_F(TestTenantProcessor, test_delete_tenant)
   ASSERT_EQ(0, check_map_value(conn_map, 2));
   LOG_DEBUG("success1");
 
+  SqlField tmp_field[4];
+  tmp_field[0] = sql_field[0];
+  tmp_field[1] = sql_field[1];
+  tmp_field[2] = sql_field[2];
+  tmp_field[3] = sql_field[3];
   sql_result.reset();
   sql_result.field_num_ = 4;
-  sql_result.fields_.push_back(sql_field[0]);
-  sql_field[1].column_name_.set("tenant");
+  sql_result.fields_.push_back(&tmp_field[0]);
+  sql_field[1].column_name_.set_value("tenant");
   sql_field[1].column_value_.set_value("ob_tenant_1");
-  sql_result.fields_.push_back(sql_field[1]);
-  sql_result.fields_.push_back(sql_field[2]);
-  sql_field[3].column_name_.set("value");
-  sql_field[3].column_value_.set_value("[{\"vip\": \"127.0.0.3\", \"value\": 4000}, {\"vip\": \"127.0.0.2\", \"value\": 7777}]");
-  sql_result.fields_.push_back(sql_field[3]);
+  sql_result.fields_.push_back(&tmp_field[1]);
+  sql_result.fields_.push_back(&tmp_field[2]);
+  sql_field[3].column_name_.set_value("value");
+  sql_field[3].column_value_.set_value("[{\"vip\": \"127.0.0.1\", \"value\": 4000}, {\"vip\": \"10.8.17.120\", \"value\": 7777}]");
+  sql_result.fields_.push_back(&tmp_field[3]);
   cloud_params.fields_ = &sql_result;
   cloud_params.tenant_name_ = "ob_tenant_1";
 
diff --git a/unittest/obproxy/test_white_list_processor.cpp b/unittest/obproxy/test_white_list_processor.cpp
index aec7a728..564247a3 100644
--- a/unittest/obproxy/test_white_list_processor.cpp
+++ b/unittest/obproxy/test_white_list_processor.cpp
@@ -53,19 +53,33 @@ TEST_F(TestWhiteListProcessor, test_ip_net)
   char ip2[32] = "127.0.0.3";
   char ip3[32] = "127.0.0.4";
   char ip4[32] = "127.0.0.5";
-  ASSERT_EQ(true, white_list_processor_.can_ip_pass(cluster_name, tenant_name, user_name, ip1));
-  ASSERT_EQ(true, white_list_processor_.can_ip_pass(cluster_name, tenant_name, user_name, ip2));
-  ASSERT_EQ(false, white_list_processor_.can_ip_pass(cluster_name, tenant_name, user_name, ip3));
-  ASSERT_EQ(false, white_list_processor_.can_ip_pass(cluster_name, tenant_name, user_name, ip4));
+  ObAddr addr1(ObAddr::VER::IPV4, ip1, 0);
+  ObAddr addr2(ObAddr::VER::IPV4, ip2, 0);
+  ObAddr addr3(ObAddr::VER::IPV4, ip3, 0);
+  ObAddr addr4(ObAddr::VER::IPV4, ip4, 0);
+  struct sockaddr_storage ss = addr1.get_sockaddr();
+  ASSERT_EQ(true, white_list_processor_.can_ip_pass(cluster_name, tenant_name, user_name, *reinterpret_cast<sockaddr*>(&ss)));
+  ss = addr2.get_sockaddr();
+  ASSERT_EQ(true, white_list_processor_.can_ip_pass(cluster_name, tenant_name, user_name, *reinterpret_cast<sockaddr*>(&ss)));
+  ss = addr3.get_sockaddr();
+  ASSERT_EQ(false, white_list_processor_.can_ip_pass(cluster_name, tenant_name, user_name, *reinterpret_cast<sockaddr*>(&ss)));
+  ss = addr4.get_sockaddr();
+  ASSERT_EQ(false, white_list_processor_.can_ip_pass(cluster_name, tenant_name, user_name, *reinterpret_cast<sockaddr*>(&ss)));
   ObString cluster_name2 = "cluster2";
   ObString tenant_name2 = "tenant2";
   ObString user_name2 = "user2";
   char ip5[32] = "127.0.0.1";
   char ip6[32] = "127.0.0.2";
   char ip7[32] = "127.0.0.3";
-  ASSERT_EQ(true, white_list_processor_.can_ip_pass(cluster_name2, tenant_name2, user_name2, ip5));
-  ASSERT_EQ(false, white_list_processor_.can_ip_pass(cluster_name2, tenant_name2, user_name2, ip6));
-  ASSERT_EQ(true, white_list_processor_.can_ip_pass(cluster_name2, tenant_name2, user_name2, ip7));
+  ObAddr addr5(ObAddr::VER::IPV4, ip5, 0);
+  ObAddr addr6(ObAddr::VER::IPV4, ip6, 0);
+  ObAddr addr7(ObAddr::VER::IPV4, ip7, 0);
+  ss = addr5.get_sockaddr();
+  ASSERT_EQ(true, white_list_processor_.can_ip_pass(cluster_name2, tenant_name2, user_name2, *reinterpret_cast<sockaddr*>(&ss)));
+  ss = addr6.get_sockaddr();
+  ASSERT_EQ(false, white_list_processor_.can_ip_pass(cluster_name2, tenant_name2, user_name2, *reinterpret_cast<sockaddr*>(&ss)));
+  ss = addr7.get_sockaddr();
+  ASSERT_EQ(true, white_list_processor_.can_ip_pass(cluster_name2, tenant_name2, user_name2, *reinterpret_cast<sockaddr*>(&ss)));
 }
 
 int main(int argc, char **argv)