89 lines
2.7 KiB
Plaintext
89 lines
2.7 KiB
Plaintext
#
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#Bug#11759688 52020: InnoDB can still deadlock
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#on just INSERT...ON DUPLICATE KEY
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#a.k.a. Bug#7975 deadlock without any locking, simple select and update
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#
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CREATE TABLE t1 (a INT PRIMARY KEY, b INT NOT NULL) ENGINE=InnoDB;
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INSERT INTO t1 VALUES(3,1);
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BEGIN;
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SET DEBUG_SYNC='write_row_noreplace SIGNAL insert1 WAIT_FOR select1';
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INSERT INTO t1 VALUES(3,2);
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SET DEBUG_SYNC='now WAIT_FOR insert1';
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SELECT * FROM t1 LOCK IN SHARE MODE;
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a b
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3 1
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SELECT * FROM t1 FOR UPDATE;
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SET DEBUG_SYNC='now SIGNAL select1';
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ERROR 23000: Duplicate entry '3' for key 'PRIMARY'
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INSERT INTO t1 VALUES(3,3) ON DUPLICATE KEY UPDATE b=b+10;
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ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
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COMMIT;
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SET DEBUG_SYNC='write_row_replace SIGNAL insert2 WAIT_FOR select2';
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REPLACE INTO t1 VALUES(3,4);
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SET DEBUG_SYNC='now WAIT_FOR insert2';
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SELECT * FROM t1;
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a b
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3 11
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SELECT * FROM t1 LOCK IN SHARE MODE;
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SET DEBUG_SYNC='now SIGNAL select2';
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SET DEBUG_SYNC='write_row_replace SIGNAL insert3 WAIT_FOR select3';
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INSERT INTO t1 VALUES(3,5) ON DUPLICATE KEY UPDATE b=b+20;
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a b
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3 4
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SET DEBUG_SYNC='now WAIT_FOR insert3';
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SELECT b FROM t1 LOCK IN SHARE MODE;
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SET DEBUG_SYNC='now SIGNAL select3';
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b
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24
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SET DEBUG_SYNC='write_row_noreplace SIGNAL insert4 WAIT_FOR select4';
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LOAD DATA INFILE '../../std_data/loaddata5.dat' INTO TABLE t1 FIELDS TERMINATED BY '' ENCLOSED BY '' (a, b);
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SET DEBUG_SYNC='now WAIT_FOR insert4';
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SELECT b FROM t1 WHERE a=3 LOCK IN SHARE MODE;
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b
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24
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SELECT b FROM t1 WHERE a=3 FOR UPDATE;
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SET DEBUG_SYNC='now SIGNAL select4';
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b
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24
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ERROR 23000: Duplicate entry '3' for key 'PRIMARY'
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SET DEBUG_SYNC='write_row_noreplace SIGNAL insert5 WAIT_FOR select5';
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LOAD DATA INFILE '../../std_data/loaddata5.dat' IGNORE INTO TABLE t1 FIELDS TERMINATED BY '' ENCLOSED BY '' (a, b);
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SET DEBUG_SYNC='now WAIT_FOR insert5';
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SELECT * FROM t1;
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a b
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3 24
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SELECT * FROM t1 WHERE a=3 LOCK IN SHARE MODE;
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a b
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3 24
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SELECT * FROM t1 WHERE a=3 FOR UPDATE;
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SET DEBUG_SYNC='now SIGNAL select5';
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Warnings:
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Warning 1062 Duplicate entry '3' for key 'PRIMARY'
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a b
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3 24
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SET DEBUG_SYNC='write_row_replace SIGNAL insert6 WAIT_FOR select6';
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LOAD DATA INFILE '../../std_data/loaddata5.dat' REPLACE INTO TABLE t1 FIELDS TERMINATED BY '' ENCLOSED BY '' (a, b);
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SET DEBUG_SYNC='now WAIT_FOR insert6';
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SELECT * FROM t1;
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a b
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1 2
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3 24
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5 6
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SELECT a,b FROM t1 LOCK IN SHARE MODE;
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SET DEBUG_SYNC='now SIGNAL select6';
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a b
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1 2
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3 4
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5 6
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SET DEBUG_SYNC='RESET';
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DROP TABLE t1;
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START TRANSACTION;
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CREATE TEMPORARY TABLE t1 (a INT, b CHAR(10), d VARCHAR(100), c INT, UNIQUE INDEX(a), UNIQUE INDEX(b), UNIQUE INDEX(d)) ENGINE = InnoDB;
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INSERT INTO t1 VALUES(2, 'abcde', 'qwerty', 200);
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REPLACE INTO t1 VALUES(2, 'QWERTY', 'ZXCVBB', 300);
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SELECT * FROM t1;
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a b d c
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2 QWERTY ZXCVBB 300
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COMMIT;
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DROP TABLE t1;
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