Database name is upper cased, SIMPLE select for that DB tables ERRORs.

One of the customers reported that, on the MariaDB columnstore 10.5.5. The simple SELECT query error as "ERROR 1815 (HY000): Internal error: IDB-1000: '<tablename>' and '<tablename>' are not joined."

It is observed that if a database name is upper cased, and a table created in that database simple SELECT throws above noted error.

Repro step:

MariaDB [(none)]> create database SURESH;
Query OK, 1 row affected (0.002 sec)

MariaDB [(none)]> use SURESH
Database changed

MariaDB [SURESH]> create table foo (a int) engine=columnstore;
Query OK, 0 rows affected (0.325 sec)

MariaDB [SURESH]> select * from foo;
ERROR 1815 (HY000): Internal error: IDB-1000: 'foo' and 'foo' are not joined.
MariaDB [SURESH]> select @@version;
----------------

----------------

----------------
1 row in set (0.000 sec)

Thank You.