Hi, Sergey! On Dec 26, Sergey Vojtovich wrote:

revision-id: a01f9ff80b892bf32dd2754da17438e8884c003a (mariadb-10.2.11-51-ga01f9ff) parent(s): c3bd0b0301936d0dcd0918bb8c966c272610d61b committer: Sergey Vojtovich timestamp: 2017-12-26 14:38:45 +0400 message:

MDEV-11071 - Assertion `thd->transaction.stmt.is_empty()' failed in Locked_tables_list::unlock_locked_tables

Similarly to regular DROP TABLE, don't leave locked tables mode if CREATE OR REPLACE dropped temporary table but failed to cerate new one.

The problem is that there's no track of which temporary table was "locked" by LOCK TABLES.

Looks reasonable. Could you also add a test where t2 is locked and t2 is dropped? Just to show that pos_in_locked_tables works for temporary tables. Ok to push after that. Regards, Sergei Chief Architect MariaDB and security@mariadb.org