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21 lines
678 B
SQL
21 lines
678 B
SQL
DROP TABLE IF EXISTS alter_attach;
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CREATE TABLE alter_attach (x UInt64, p UInt8) ENGINE = MergeTree ORDER BY tuple() PARTITION BY p;
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INSERT INTO alter_attach VALUES (1, 1), (2, 1), (3, 1);
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ALTER TABLE alter_attach DETACH PARTITION 1;
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ALTER TABLE alter_attach ADD COLUMN s String;
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INSERT INTO alter_attach VALUES (4, 2, 'Hello'), (5, 2, 'World');
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ALTER TABLE alter_attach ATTACH PARTITION 1;
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SELECT * FROM alter_attach ORDER BY x;
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ALTER TABLE alter_attach DETACH PARTITION 2;
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ALTER TABLE alter_attach DROP COLUMN s;
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INSERT INTO alter_attach VALUES (6, 3), (7, 3);
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ALTER TABLE alter_attach ATTACH PARTITION 2;
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SELECT * FROM alter_attach ORDER BY x;
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DROP TABLE alter_attach;
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