From a7af88edb3840615c99f9d5380801fa9d88151e7 Mon Sep 17 00:00:00 2001
From: Justin Clift <justin@postgresql.org>
Date: Mon, 30 Sep 2024 21:21:52 +1000
Subject: [PATCH] WIP.  Get the list of databases in the database cluster

---
 docker-entrypoint.sh | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index 4f5d90a..49b3eca 100755
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -540,7 +540,7 @@ _main() {
 			echo "Running pg_upgrade command, from $(pwd)"
 			echo "---------------------------------------"
 			bin_path=$(get_bin_path)
-			${bin_path}/pg_upgrade --username="${POSTGRES_USER}" --link -d "${OLD}" -D "${NEW}" -b "${OLDPATH}/bin" -B "${bin_path}" --socketdir="/var/run/postgresql"
+			"${bin_path}/pg_upgrade" --username="${POSTGRES_USER}" --link -d "${OLD}" -D "${NEW}" -b "${OLDPATH}/bin" -B "${bin_path}" --socketdir="/var/run/postgresql"
 			echo "--------------------------------------"
 			echo "Running pg_upgrade command is complete"
 			echo "--------------------------------------"
@@ -578,14 +578,11 @@ _main() {
         echo "Reindexing the databases"
         echo "------------------------"
 
-        # Start the database in single user mode
-        "${OLDPATH}/bin/postgres" --single -D "${POSTGRES_DB}"
-
         # 1. Get the list of databases in the database cluster
-        # Something like this should work:
-        # SELECT datname FROM pg_catalog.pg_database WHERE datistemplate IS FALSE;
+        DB_LIST=$(echo 'SELECT datname FROM pg_catalog.pg_database WHERE datistemplate IS FALSE' | postgres --single -D /var/lib/postgresql/data 2>bar | grep datname | grep -v backend | cut -d '"' -f 2)
 
         # 2. For each database, get the list of indexes
+
         # 3. Regenerate the indexes
 
         echo "-------------------------------"