duerwuyi opened a new issue, #36833:
URL: https://github.com/apache/shardingsphere/issues/36833
## Bug Report
### Which version of ShardingSphere did you use?
shardingsphere-proxy 5.5.2
postgres 17.2 as backend
### Expected behavior
`\l` returns list of all databases.
### Actual behavior
```sql
root@docker-desktop:~/DDC# psql -h host.docker.internal -p 5440 -U postgres
Password for user postgres:
psql (17.6 (Ubuntu 17.6-1.pgdg22.04+1), server 12.3-ShardingSphere-Proxy
5.5.2)
Type "help" for help.
postgres=> \l
List of databases
Name | Owner | Encoding | Locale Provider | Collate | Ctype
| Locale | ICU Rules | Access privileges
-----------+----------+----------+-----------------+------------+------------+--------+-----------+-----------------------
postgres | postgres | UTF8 | libc | en_US.utf8 | en_US.utf8
| | |
template0 | postgres | UTF8 | libc | en_US.utf8 | en_US.utf8
| | | =c/postgres +
| | | | |
| | | postgres=CTc/postgres
template1 | postgres | UTF8 | libc | en_US.utf8 | en_US.utf8
| | | =c/postgres +
| | | | |
| | | postgres=CTc/postgres
testdb | postgres | UTF8 | libc | en_US.utf8 | en_US.utf8
| | |
(4 rows)
postgres=> \c
psql (17.6 (Ubuntu 17.6-1.pgdg22.04+1), server 12.3-ShardingSphere-Proxy
5.5.2)
You are now connected to database "postgres" as user "postgres".
postgres=> \c testdb
You are now connected to database "testdb" as user "postgres".
testdb=> \l
ERROR: Unknown column 'd.datlocale' in 'field list'.
testdb=>
```
### Steps to reproduce the behavior, such as: SQL to execute, sharding rule
configuration, when exception occur etc.
[ss_postgres.zip](https://github.com/user-attachments/files/22796935/ss_postgres.zip)
run `docker compose up -d` in this file.
SQL to execute are shown above
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