chore: disable table info refreshing for ai_to_sql (#16240)

* chore: disable table info refreshing for ai_to_sql

* add stateless test

* chore: commetted out AI stateless test

AI funcs are not testable in CI yet

src/query/service/src/table_functions/openai/ai_to_sql.rs

@@ -185,7 +185,14 @@ impl AsyncSource for GPT2SQLSource {
         // SELECT
         let database = self.ctx.get_current_database();
         let tenant = self.ctx.get_tenant();
-        let catalog = self.ctx.get_catalog(CATALOG_DEFAULT).await?;
+
+        // Disable table info refreshing.
+        // Attached tables may not be able to refresh table info successfully.
+        let catalog = self
+            .ctx
+            .get_catalog(CATALOG_DEFAULT)
+            .await?
+            .disable_table_info_refresh()?;
 
         let mut template = vec![];
         template.push("### Postgres SQL tables, with their properties:".to_string());

tests/suites/5_ee/04_attach_read_only/02_0006_attach_table_ro_issue_16121.sh

@@ -17,3 +17,7 @@ echo "set data_retention_time_in_days=0;vacuum drop table from issue_16121;" | $
 
 echo "expects no error(nothing outputs)"
 echo "drop table issue_16121.attach_read_only" | $BENDSQL_CLIENT_CONNECT
+
+# AI configurations (provider url, ak/sk) are not ready for CI, thus the following test case is commented out
+#echo "expects ai_to_sql works"
+#echo "SELECT* FROM  ai_to_sql ('current time') IGNORE_RESULT" | $BENDSQL_CLIENT_CONNECT