[MDEV-4516] SELECT from I_S.QUERY_CACHE_INFO produces ER_UNKNOWN_ERROR when query cache size is 0 - Jira

MariaDB [test]> set global query_cache_size = 1024*1024;

Query OK, 0 rows affected (0.00 sec)

MariaDB [test]> select * from information_schema.query_cache_info;

Empty set (0.00 sec)

MariaDB [test]> set global query_cache_size = 0;

Query OK, 0 rows affected (0.00 sec)

MariaDB [test]> select * from information_schema.query_cache_info;

ERROR 1105 (HY000): Unknown error

bzr version-info

revision-id: monty@askmonty.org-20130512082916-vjlzg3tjtlbvnowy

revno: 3759

branch-nick: 5.5

relates to

MDEV-249 QUERY CACHE INFORMATION

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MariaDB Server