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