DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (a <INT_COLUMN>, b <CHAR_COLUMN>) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
INSERT INTO t1 (a,b) VALUES (1,'f'),(2,'b');
LOCK TABLE t1 READ;
connect  con0,localhost,root,,;
SET lock_wait_timeout = 1;
INSERT DELAYED INTO t1 (a,b) VALUES (3,'c');
INSERT DELAYED INTO t1 SET a=4, b='d';
INSERT DELAYED INTO t1 (a,b) SELECT 5, 'e';
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
disconnect con0;
connection default;
SELECT a,b FROM t1;
a	b
1	f
2	b
UNLOCK TABLES;
FLUSH TABLES;
SELECT a,b FROM t1;
a	b
1	f
2	b
3	c
4	d
DROP TABLE t1;