Granting a db level privilege to a non-existent table should not report ErrTableNotExists #29302
Description
Bug Report
Please answer these questions before submitting your issue. Thanks!
This is introduced by #29273
1. Minimal reproduce step (Required)
mysql> drop table tmpdb.t;
Query OK, 0 rows affected (0.01 sec)
mysql> grant create temporary tables on tmpdb.tmpdb to test_user;
ERROR 1146 (42S02): Table 'tmpdb.tmpdb' doesn't exist2. What did you expect to see? (Required)
mysql> grant create temporary tables on tmpdb.t to test_user;
ERROR 1144 (42000): Illegal GRANT/REVOKE command; please consult the manual to see which privileges can be used3. What did you see instead (Required)
mysql> grant create temporary tables on tmpdb.tmpdb to test_user;
ERROR 1146 (42S02): Table 'tmpdb.tmpdb' doesn't exist4. What is your TiDB version? (Required)
master