906 lines
23 KiB
Plaintext
906 lines
23 KiB
Plaintext
DROP TABLE IF EXISTS t1;
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SET sql_mode='NO_ENGINE_SUBSTITUTION';
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CREATE TABLE t1(c1 TINYINT NOT NULL PRIMARY KEY, c2 TINYINT);
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SHOW TABLES;
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Tables_in_test
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t1
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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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`c1` tinyint(4) NOT NULL,
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`c2` tinyint(4) DEFAULT NULL,
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 SET DEFAULT 10;
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INSERT INTO t1(c1) VALUES(1);
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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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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`c1` tinyint(4) NOT NULL,
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`c2` tinyint(4) DEFAULT '10',
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 DROP DEFAULT;
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INSERT INTO t1(c1) VALUES(2);
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Warnings:
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Warning 1364 Field 'c2' doesn't have a default value
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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2 NULL
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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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`c1` tinyint(4) NOT NULL,
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`c2` tinyint(4),
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 SMALLINT NOT NULL PRIMARY KEY, c2 SMALLINT);
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SHOW TABLES;
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Tables_in_test
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t1
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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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`c1` smallint(6) NOT NULL,
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`c2` smallint(6) DEFAULT NULL,
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 SET DEFAULT 10;
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INSERT INTO t1(c1) VALUES(1);
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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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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`c1` smallint(6) NOT NULL,
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`c2` smallint(6) DEFAULT '10',
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 DROP DEFAULT;
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INSERT INTO t1(c1) VALUES(2);
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Warnings:
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Warning 1364 Field 'c2' doesn't have a default value
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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2 NULL
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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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`c1` smallint(6) NOT NULL,
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`c2` smallint(6),
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 MEDIUMINT NOT NULL PRIMARY KEY, c2 MEDIUMINT);
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SHOW TABLES;
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Tables_in_test
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t1
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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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`c1` mediumint(9) NOT NULL,
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`c2` mediumint(9) DEFAULT NULL,
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 SET DEFAULT 10;
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INSERT INTO t1(c1) VALUES(1);
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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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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`c1` mediumint(9) NOT NULL,
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`c2` mediumint(9) DEFAULT '10',
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 DROP DEFAULT;
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INSERT INTO t1(c1) VALUES(2);
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Warnings:
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Warning 1364 Field 'c2' doesn't have a default value
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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2 NULL
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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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`c1` mediumint(9) NOT NULL,
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`c2` mediumint(9),
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 INT NOT NULL PRIMARY KEY, c2 INT);
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SHOW TABLES;
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Tables_in_test
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t1
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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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`c1` int(11) NOT NULL,
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`c2` int(11) DEFAULT NULL,
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 SET DEFAULT 10;
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INSERT INTO t1(c1) VALUES(1);
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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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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`c1` int(11) NOT NULL,
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`c2` int(11) DEFAULT '10',
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 DROP DEFAULT;
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INSERT INTO t1(c1) VALUES(2);
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Warnings:
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Warning 1364 Field 'c2' doesn't have a default value
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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2 NULL
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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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`c1` int(11) NOT NULL,
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`c2` int(11),
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 INTEGER NOT NULL PRIMARY KEY, c2 INTEGER);
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SHOW TABLES;
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Tables_in_test
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t1
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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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`c1` int(11) NOT NULL,
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`c2` int(11) DEFAULT NULL,
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 SET DEFAULT 10;
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INSERT INTO t1(c1) VALUES(1);
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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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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`c1` int(11) NOT NULL,
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`c2` int(11) DEFAULT '10',
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 DROP DEFAULT;
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INSERT INTO t1(c1) VALUES(2);
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Warnings:
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Warning 1364 Field 'c2' doesn't have a default value
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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2 NULL
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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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`c1` int(11) NOT NULL,
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`c2` int(11),
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 BIGINT NOT NULL PRIMARY KEY, c2 BIGINT);
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SHOW TABLES;
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Tables_in_test
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t1
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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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`c1` bigint(20) NOT NULL,
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`c2` bigint(20) DEFAULT NULL,
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 SET DEFAULT 10;
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INSERT INTO t1(c1) VALUES(1);
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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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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`c1` bigint(20) NOT NULL,
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`c2` bigint(20) DEFAULT '10',
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 DROP DEFAULT;
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INSERT INTO t1(c1) VALUES(2);
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Warnings:
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Warning 1364 Field 'c2' doesn't have a default value
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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2 NULL
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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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`c1` bigint(20) NOT NULL,
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`c2` bigint(20),
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 REAL NOT NULL PRIMARY KEY, c2 REAL);
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SHOW TABLES;
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Tables_in_test
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t1
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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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`c1` double NOT NULL,
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`c2` double DEFAULT NULL,
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 SET DEFAULT 10;
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INSERT INTO t1(c1) VALUES(1);
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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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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`c1` double NOT NULL,
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`c2` double DEFAULT '10',
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 DROP DEFAULT;
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INSERT INTO t1(c1) VALUES(2);
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Warnings:
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Warning 1364 Field 'c2' doesn't have a default value
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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2 NULL
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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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`c1` double NOT NULL,
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`c2` double,
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 DOUBLE NOT NULL PRIMARY KEY, c2 DOUBLE);
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SHOW TABLES;
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Tables_in_test
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t1
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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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`c1` double NOT NULL,
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`c2` double DEFAULT NULL,
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 SET DEFAULT 10;
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INSERT INTO t1(c1) VALUES(1);
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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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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`c1` double NOT NULL,
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`c2` double DEFAULT '10',
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 DROP DEFAULT;
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INSERT INTO t1(c1) VALUES(2);
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Warnings:
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Warning 1364 Field 'c2' doesn't have a default value
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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2 NULL
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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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`c1` double NOT NULL,
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`c2` double,
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 FLOAT NOT NULL PRIMARY KEY, c2 FLOAT);
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SHOW TABLES;
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Tables_in_test
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t1
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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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`c1` float NOT NULL,
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`c2` float DEFAULT NULL,
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 SET DEFAULT 10;
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INSERT INTO t1(c1) VALUES(1);
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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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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`c1` float NOT NULL,
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`c2` float DEFAULT '10',
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 DROP DEFAULT;
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INSERT INTO t1(c1) VALUES(2);
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Warnings:
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Warning 1364 Field 'c2' doesn't have a default value
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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2 NULL
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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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`c1` float NOT NULL,
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`c2` float,
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 DECIMAL NOT NULL PRIMARY KEY, c2 DECIMAL);
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SHOW TABLES;
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Tables_in_test
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t1
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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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`c1` decimal(10,0) NOT NULL,
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`c2` decimal(10,0) DEFAULT NULL,
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 SET DEFAULT 10;
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INSERT INTO t1(c1) VALUES(1);
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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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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`c1` decimal(10,0) NOT NULL,
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`c2` decimal(10,0) DEFAULT '10',
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 DROP DEFAULT;
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INSERT INTO t1(c1) VALUES(2);
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Warnings:
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Warning 1364 Field 'c2' doesn't have a default value
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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2 NULL
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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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`c1` decimal(10,0) NOT NULL,
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`c2` decimal(10,0),
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 NUMERIC NOT NULL PRIMARY KEY, c2 NUMERIC);
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SHOW TABLES;
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Tables_in_test
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t1
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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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`c1` decimal(10,0) NOT NULL,
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`c2` decimal(10,0) DEFAULT NULL,
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 SET DEFAULT 10;
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INSERT INTO t1(c1) VALUES(1);
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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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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`c1` decimal(10,0) NOT NULL,
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`c2` decimal(10,0) DEFAULT '10',
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER c2 DROP DEFAULT;
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INSERT INTO t1(c1) VALUES(2);
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Warnings:
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Warning 1364 Field 'c2' doesn't have a default value
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
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2 NULL
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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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`c1` decimal(10,0) NOT NULL,
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`c2` decimal(10,0),
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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DROP TABLE t1;
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SHOW TABLES;
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Tables_in_test
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CREATE TABLE t1(c1 TINYINT NOT NULL PRIMARY KEY, c2 TINYINT);
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SHOW TABLES;
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Tables_in_test
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t1
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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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`c1` tinyint(4) NOT NULL,
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`c2` tinyint(4) DEFAULT NULL,
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PRIMARY KEY (`c1`)
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) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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ALTER TABLE t1 ALTER COLUMN c2 SET DEFAULT 10;
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INSERT INTO t1(c1) VALUES(1);
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SELECT * FROM t1 ORDER BY c1;
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c1 c2
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1 10
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` tinyint(4) NOT NULL,
|
|
`c2` tinyint(4) DEFAULT '10',
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 DROP DEFAULT;
|
|
INSERT INTO t1(c1) VALUES(2);
|
|
Warnings:
|
|
Warning 1364 Field 'c2' doesn't have a default value
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
2 NULL
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` tinyint(4) NOT NULL,
|
|
`c2` tinyint(4),
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
DROP TABLE t1;
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
CREATE TABLE t1(c1 SMALLINT NOT NULL PRIMARY KEY, c2 SMALLINT);
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
t1
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` smallint(6) NOT NULL,
|
|
`c2` smallint(6) DEFAULT NULL,
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 SET DEFAULT 10;
|
|
INSERT INTO t1(c1) VALUES(1);
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` smallint(6) NOT NULL,
|
|
`c2` smallint(6) DEFAULT '10',
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 DROP DEFAULT;
|
|
INSERT INTO t1(c1) VALUES(2);
|
|
Warnings:
|
|
Warning 1364 Field 'c2' doesn't have a default value
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
2 NULL
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` smallint(6) NOT NULL,
|
|
`c2` smallint(6),
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
DROP TABLE t1;
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
CREATE TABLE t1(c1 MEDIUMINT NOT NULL PRIMARY KEY, c2 MEDIUMINT);
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
t1
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` mediumint(9) NOT NULL,
|
|
`c2` mediumint(9) DEFAULT NULL,
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 SET DEFAULT 10;
|
|
INSERT INTO t1(c1) VALUES(1);
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` mediumint(9) NOT NULL,
|
|
`c2` mediumint(9) DEFAULT '10',
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 DROP DEFAULT;
|
|
INSERT INTO t1(c1) VALUES(2);
|
|
Warnings:
|
|
Warning 1364 Field 'c2' doesn't have a default value
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
2 NULL
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` mediumint(9) NOT NULL,
|
|
`c2` mediumint(9),
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
DROP TABLE t1;
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
CREATE TABLE t1(c1 INT NOT NULL PRIMARY KEY, c2 INT);
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
t1
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` int(11) NOT NULL,
|
|
`c2` int(11) DEFAULT NULL,
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 SET DEFAULT 10;
|
|
INSERT INTO t1(c1) VALUES(1);
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` int(11) NOT NULL,
|
|
`c2` int(11) DEFAULT '10',
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 DROP DEFAULT;
|
|
INSERT INTO t1(c1) VALUES(2);
|
|
Warnings:
|
|
Warning 1364 Field 'c2' doesn't have a default value
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
2 NULL
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` int(11) NOT NULL,
|
|
`c2` int(11),
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
DROP TABLE t1;
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
CREATE TABLE t1(c1 INTEGER NOT NULL PRIMARY KEY, c2 INTEGER);
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
t1
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` int(11) NOT NULL,
|
|
`c2` int(11) DEFAULT NULL,
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 SET DEFAULT 10;
|
|
INSERT INTO t1(c1) VALUES(1);
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` int(11) NOT NULL,
|
|
`c2` int(11) DEFAULT '10',
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 DROP DEFAULT;
|
|
INSERT INTO t1(c1) VALUES(2);
|
|
Warnings:
|
|
Warning 1364 Field 'c2' doesn't have a default value
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
2 NULL
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` int(11) NOT NULL,
|
|
`c2` int(11),
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
DROP TABLE t1;
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
CREATE TABLE t1(c1 BIGINT NOT NULL PRIMARY KEY, c2 BIGINT);
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
t1
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` bigint(20) NOT NULL,
|
|
`c2` bigint(20) DEFAULT NULL,
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 SET DEFAULT 10;
|
|
INSERT INTO t1(c1) VALUES(1);
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` bigint(20) NOT NULL,
|
|
`c2` bigint(20) DEFAULT '10',
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 DROP DEFAULT;
|
|
INSERT INTO t1(c1) VALUES(2);
|
|
Warnings:
|
|
Warning 1364 Field 'c2' doesn't have a default value
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
2 NULL
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` bigint(20) NOT NULL,
|
|
`c2` bigint(20),
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
DROP TABLE t1;
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
CREATE TABLE t1(c1 REAL NOT NULL PRIMARY KEY, c2 REAL);
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
t1
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` double NOT NULL,
|
|
`c2` double DEFAULT NULL,
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 SET DEFAULT 10;
|
|
INSERT INTO t1(c1) VALUES(1);
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` double NOT NULL,
|
|
`c2` double DEFAULT '10',
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 DROP DEFAULT;
|
|
INSERT INTO t1(c1) VALUES(2);
|
|
Warnings:
|
|
Warning 1364 Field 'c2' doesn't have a default value
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
2 NULL
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` double NOT NULL,
|
|
`c2` double,
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
DROP TABLE t1;
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
CREATE TABLE t1(c1 DOUBLE NOT NULL PRIMARY KEY, c2 DOUBLE);
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
t1
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` double NOT NULL,
|
|
`c2` double DEFAULT NULL,
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 SET DEFAULT 10;
|
|
INSERT INTO t1(c1) VALUES(1);
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` double NOT NULL,
|
|
`c2` double DEFAULT '10',
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 DROP DEFAULT;
|
|
INSERT INTO t1(c1) VALUES(2);
|
|
Warnings:
|
|
Warning 1364 Field 'c2' doesn't have a default value
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
2 NULL
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` double NOT NULL,
|
|
`c2` double,
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
DROP TABLE t1;
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
CREATE TABLE t1(c1 FLOAT NOT NULL PRIMARY KEY, c2 FLOAT);
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
t1
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` float NOT NULL,
|
|
`c2` float DEFAULT NULL,
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 SET DEFAULT 10;
|
|
INSERT INTO t1(c1) VALUES(1);
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` float NOT NULL,
|
|
`c2` float DEFAULT '10',
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 DROP DEFAULT;
|
|
INSERT INTO t1(c1) VALUES(2);
|
|
Warnings:
|
|
Warning 1364 Field 'c2' doesn't have a default value
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
2 NULL
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` float NOT NULL,
|
|
`c2` float,
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
DROP TABLE t1;
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
CREATE TABLE t1(c1 DECIMAL NOT NULL PRIMARY KEY, c2 DECIMAL);
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
t1
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` decimal(10,0) NOT NULL,
|
|
`c2` decimal(10,0) DEFAULT NULL,
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 SET DEFAULT 10;
|
|
INSERT INTO t1(c1) VALUES(1);
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` decimal(10,0) NOT NULL,
|
|
`c2` decimal(10,0) DEFAULT '10',
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 DROP DEFAULT;
|
|
INSERT INTO t1(c1) VALUES(2);
|
|
Warnings:
|
|
Warning 1364 Field 'c2' doesn't have a default value
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
2 NULL
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` decimal(10,0) NOT NULL,
|
|
`c2` decimal(10,0),
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
DROP TABLE t1;
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
CREATE TABLE t1(c1 NUMERIC NOT NULL PRIMARY KEY, c2 NUMERIC);
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
t1
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` decimal(10,0) NOT NULL,
|
|
`c2` decimal(10,0) DEFAULT NULL,
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 SET DEFAULT 10;
|
|
INSERT INTO t1(c1) VALUES(1);
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` decimal(10,0) NOT NULL,
|
|
`c2` decimal(10,0) DEFAULT '10',
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
ALTER TABLE t1 ALTER COLUMN c2 DROP DEFAULT;
|
|
INSERT INTO t1(c1) VALUES(2);
|
|
Warnings:
|
|
Warning 1364 Field 'c2' doesn't have a default value
|
|
SELECT * FROM t1 ORDER BY c1;
|
|
c1 c2
|
|
1 10
|
|
2 NULL
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` decimal(10,0) NOT NULL,
|
|
`c2` decimal(10,0),
|
|
PRIMARY KEY (`c1`)
|
|
) ENGINE=ENGINE DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
DROP TABLE t1;
|
|
SHOW TABLES;
|
|
Tables_in_test
|
|
SET sql_mode=default;
|