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21 lines
603 B
SQL
21 lines
603 B
SQL
DROP TABLE IF EXISTS test.check_comments;
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CREATE TABLE test.check_comments
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(
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column_name1 UInt8 DEFAULT 1 COMMENT 'comment',
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column_name2 UInt8 COMMENT 'non default comment'
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) ENGINE = ReplicatedMergeTree('clickhouse/tables/test_comments', 'r1')
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ORDER BY column_name1;
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SHOW CREATE test.check_comments;
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DESC test.check_comments;
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ALTER TABLE test.check_comments COMMENT COLUMN column_name1 'another comment';
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SHOW CREATE test.check_comments;
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DESC test.check_comments;
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SELECT * FROM system.columns WHERE table = 'check.comments' and database = 'test';
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DROP TABLE test.check_comments;
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