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34 lines
785 B
Plaintext
34 lines
785 B
Plaintext
drop table if exists t1;
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CREATE TABLE t1(
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id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
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k INT,
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c CHAR(1),
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UNIQUE KEY(k)) ENGINE=InnoDB;
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#
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# Connection 1
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#
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SET DEBUG_SYNC='ha_write_row_end SIGNAL continue2 WAIT_FOR continue1';
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affected rows: 0
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INSERT INTO t1(k) VALUES (1), (2), (3) ON DUPLICATE KEY UPDATE c='1';
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#
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# Connection 2
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#
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SET DEBUG_SYNC='ha_write_row_start WAIT_FOR continue2';
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affected rows: 0
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SET DEBUG_SYNC='after_mysql_insert SIGNAL continue1';
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affected rows: 0
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INSERT INTO t1(k) VALUES (2), (4), (5) ON DUPLICATE KEY UPDATE c='2';
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affected rows: 3
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info: Records: 3 Duplicates: 0 Warnings: 0
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affected rows: 4
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info: Records: 3 Duplicates: 1 Warnings: 0
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SET DEBUG_SYNC='RESET';
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SELECT * FROM t1 ORDER BY k;
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id k c
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1 1 NULL
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4 2 1
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2 3 NULL
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5 4 NULL
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6 5 NULL
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DROP TABLE t1;
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