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;