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MDEV-17749 Kill during LOCK TABLE ; ALTER TABLE causes assert

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The problem was that when LOCK TABLES where unwinded as part of
a killed connection, unlink_all_closed_tables() did not like that
there was uncommited transactions.
Fixed by doing a rollback of any open transaction in this particular case.
This commit is contained in:
Monty
2021-05-26 14:35:23 +03:00
parent 1864a8ea93
commit aa284e0237
3 changed files with 105 additions and 0 deletions
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mysql-test/main/lock_kill.result Normal file
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#
# MDEV-17749 Kill during LOCK TABLE ; ALTER TABLE causes assert
#
CREATE TABLE t1 (a INT) ENGINE=InnoDB;
connect con1,localhost,root,,test;
LOCK TABLE t1 WRITE;
ALTER TABLE t1 ADD COLUMN b INT;
connection default;
Killing connection
connection con1;
connection default;
disconnect con1;
DROP TABLE t1;
CREATE TABLE t1 (a INT) ENGINE=InnoDB;
CREATE TABLE t2 (a INT) ENGINE=InnoDB;
connect con1,localhost,root,,test;
LOCK TABLE t1 WRITE, t2 WRITE;
ALTER TABLE t1 ADD COLUMN b INT;
connection default;
Killing connection
connection con1;
connection default;
disconnect con1;
DROP TABLE t1, t2;
CREATE TABLE t1 (id int(11)) ENGINE=InnoDB;
LOCK TABLES t1 WRITE;
SET max_statement_time= 0.0001;
CREATE TRIGGER tr16 AFTER UPDATE ON t1 FOR EACH ROW INSERT INTO t1 VALUES (1);
SET max_statement_time= default;
DROP TRIGGER IF EXISTS trg16;
Warnings:
Note 1360 Trigger does not exist
DROP TABLE t1;
#
# End of 10.3 tests
#