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CREATE TABLE t1(a INT, b INT NOT NULL, PRIMARY KEY (a)) ENGINE=innodb
DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7);
CONNECT con1,localhost,root,,;
CONNECT con2,localhost,root,,;
connection con1;
START TRANSACTION;
SELECT * FROM t1 WHERE b=3 LIMIT 1 FOR UPDATE;
a b
3 3
connection con2;
START TRANSACTION;
UPDATE t1 SET b=b+12 WHERE a > 2 ORDER BY a;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
ROLLBACK;
connection con1;
START TRANSACTION;
SELECT * FROM t1 WHERE b=3 LIMIT 1 FOR UPDATE;
a b
3 3
connection con2;
START TRANSACTION;
UPDATE t1 SET b=10 WHERE a > 1 ORDER BY a;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
SELECT * FROM t1 WHERE b = 10;
a b
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t1;
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