[MDEV-19856] Lock on temporary table exists, even after the table was dropped. - Jira

Type: Bug
Status: Open (View Workflow)
Priority: Major
Resolution: Unresolved
Affects Version/s: 5.5(EOL), 10.0(EOL), 10.1(EOL), 10.2(EOL), 10.3(EOL), 10.4(EOL)
Fix Version/s: 10.4(EOL)
Component/s: None
Labels:
None

MariaDB [test]> create  table t2 (a int);

Query OK, 0 rows affected (0.062 sec)

MariaDB [test]> create temporary table t1 (a int);

Query OK, 0 rows affected (0.013 sec)

MariaDB [test]> lock table t1 write;

Query OK, 0 rows affected (0.001 sec)

MariaDB [test]> drop temporary table t1;

Query OK, 0 rows affected (0.007 sec)

MariaDB [test]> select * from t2;

ERROR 1100 (HY000): Table 't2' was not locked with LOCK TABLES

Compare with not-temorary table:

MariaDB [test]> create  table t2 (a int);

Query OK, 0 rows affected (0.054 sec)

MariaDB [test]> create table t1 (a int);

Query OK, 0 rows affected (0.048 sec)

MariaDB [test]> lock table t1 write;

Query OK, 0 rows affected (0.001 sec)

MariaDB [test]> drop table t1;

Query OK, 0 rows affected (0.025 sec)

MariaDB [test]> select * from t2;

Empty set (0.005 sec)

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MariaDB Server