35 lines
666 B
Plaintext
35 lines
666 B
Plaintext
Bug #28733170
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PERFORMANCE_SCHEMA.DATA_LOCKS DOES NOT HANDLE JOINS CORRECTLY
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CREATE TABLE t1(
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id INT PRIMARY KEY
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) Engine=InnoDB;
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INSERT INTO t1 VALUES (1);
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BEGIN;
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SELECT * FROM t1 WHERE id=1 FOR SHARE;
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id
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1
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SELECT * FROM t1 WHERE id=1 FOR UPDATE;
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id
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1
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CREATE TABLE t2 (
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id INT PRIMARY KEY AUTO_INCREMENT,
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lock_id VARCHAR(200) NOT NULL
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) Engine=InnoDB;
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INSERT INTO t2 (lock_id)
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SELECT engine_lock_id
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FROM performance_schema.data_locks
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WHERE object_name='t1';
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SELECT COUNT(*) FROM t2;
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COUNT(*)
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4
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SELECT COUNT(t2.id)
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FROM t2
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JOIN performance_schema.data_locks dl
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ON(dl.engine_lock_id = t2.lock_id)
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ORDER BY t2.id;
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COUNT(t2.id)
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4
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DROP TABLE t2;
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ROLLBACK;
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DROP TABLE t1;
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