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5.5 merge
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@ -16,3 +16,11 @@ insert t1 values (repeat('3', 8193),3,1,1);
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ALTER TABLE t1 ADD PRIMARY KEY (col4(10)) , ADD UNIQUE KEY uidx (col3);
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ERROR 23000: Duplicate entry '1' for key 'uidx'
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DROP TABLE t1;
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CREATE TABLE t1 (a INT) ENGINE = InnoDB;
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INSERT INTO t1 VALUES (2);
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ALTER TABLE t1 ADD PRIMARY KEY (a);
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ALTER TABLE t1 DROP PRIMARY KEY;
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INSERT INTO t1 VALUES (2);
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ALTER TABLE t1 ADD PRIMARY KEY (a);
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ERROR 23000: Duplicate entry '2' for key 'PRIMARY'
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DROP TABLE t1;
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