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43 lines
1 KiB
Text
43 lines
1 KiB
Text
SET @@SESSION.AUTO_INCREMENT_INCREMENT=1, @@SESSION.AUTO_INCREMENT_OFFSET=1;
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CREATE TABLE t1 (c1 INT PRIMARY KEY AUTO_INCREMENT) ENGINE=InnoDB;
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INSERT INTO t1 VALUES (null);
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INSERT INTO t1 VALUES (null);
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ALTER TABLE t1 CHANGE c1 d1 INT NOT NULL AUTO_INCREMENT;
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affected rows: 0
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info: Records: 0 Duplicates: 0 Warnings: 0
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SELECT * FROM t1;
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d1
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1
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2
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# restart
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`d1` int(11) NOT NULL AUTO_INCREMENT,
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PRIMARY KEY (`d1`)
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) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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INSERT INTO t1 VALUES(null);
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SELECT * FROM t1;
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d1
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1
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2
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3
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ALTER TABLE t1 AUTO_INCREMENT = 3;
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affected rows: 0
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info: Records: 0 Duplicates: 0 Warnings: 0
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`d1` int(11) NOT NULL AUTO_INCREMENT,
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PRIMARY KEY (`d1`)
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) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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INSERT INTO t1 VALUES(null);
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INSERT INTO t1 VALUES(null);
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SELECT * FROM t1;
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d1
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1
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2
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3
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4
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5
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DROP TABLE t1;
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