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29 lines
1.4 KiB
Plaintext
29 lines
1.4 KiB
Plaintext
DROP DATABASE IF EXISTS mcol5779;
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CREATE DATABASE mcol5779;
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USE mcol5779;
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CREATE TABLE `t1` (
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`id` int(11) DEFAULT NULL,
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`name1` char(10) DEFAULT NULL COMMENT 'test name',
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`name2` varchar(100) DEFAULT NULL COMMENT 'test name',
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`name3` text DEFAULT NULL COMMENT 'test name'
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) ENGINE=Columnstore DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_general_ci;
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ALTER TABLE t1 CHANGE COLUMN id id1 INT;
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ALTER TABLE t1 CHANGE COLUMN id1 id INT COMMENT 'new comment';
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ALTER TABLE t1 CHANGE COLUMN name1 firstname char(10);
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ALTER TABLE t1 CHANGE COLUMN firstname firstname char(10) COMMENT 'new comment';
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ALTER TABLE t1 CHANGE COLUMN name2 lastname varchar(100);
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ALTER TABLE t1 CHANGE COLUMN lastname lastname varchar(100) COMMENT 'new comment';
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ALTER TABLE t1 CHANGE COLUMN name3 surname text;
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ALTER TABLE t1 CHANGE COLUMN surname surname text COMMENT 'new comment';
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CREATE TABLE `t2` (
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`name4` varchar(2666) DEFAULT NULL COMMENT 'test name'
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) ENGINE=Columnstore DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_general_ci;
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ALTER TABLE t2 CHANGE COLUMN name4 pseudoname varchar(2666);
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ALTER TABLE t2 CHANGE COLUMN pseudoname pseudoname varchar(2666) COMMENT 'new comment';
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CREATE TABLE `t3` (
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`name4` varchar(8000) DEFAULT NULL COMMENT 'test name'
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) ENGINE=Columnstore DEFAULT CHARSET=latin1;
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ALTER TABLE t3 CHANGE COLUMN name4 pseudoname varchar(8000);
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ALTER TABLE t3 CHANGE COLUMN pseudoname pseudoname varchar(8000) COMMENT 'new comment';
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DROP DATABASE mcol5779;
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