31 lines
790 B
Plaintext
31 lines
790 B
Plaintext
#
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# Bug #47453: InnoDB incorrectly changes TIMESTAMP columns when
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# JOINed during an UPDATE
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#
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CREATE TABLE t1 (d INT) ENGINE=InnoDB;
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CREATE TABLE t2 (a INT, b INT,
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c TIMESTAMP(6) NOT NULL DEFAULT CURRENT_TIMESTAMP(6)
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ON UPDATE CURRENT_TIMESTAMP(6)) ENGINE=InnoDB;
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# set up our data elements
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INSERT INTO t1 (d) VALUES (1);
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INSERT INTO t2 (a,b) VALUES (1,1);
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SELECT c INTO @bug47453 FROM t2;
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SELECT c!=@bug47453 FROM t1 JOIN t2 ON d=a;
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c!=@bug47453
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0
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UPDATE t1 JOIN t2 ON d=a SET b=1 WHERE a=1;
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SELECT c!=@bug47453 FROM t1 JOIN t2 ON d=a;
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c!=@bug47453
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0
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UPDATE t1 JOIN t2 ON d=a SET b=1;
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# should be 0
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SELECT c!=@bug47453 FROM t1 JOIN t2 ON d=a;
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c!=@bug47453
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0
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UPDATE t1 JOIN t2 ON d=a SET b=2;
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# should not be 0
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SELECT c!=@bug47453 FROM t1 JOIN t2 ON d=a;
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c!=@bug47453
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1
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DROP TABLE t1, t2;
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