ClickHouse/tests/queries/0_stateless/00753_alter_attach.sql

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-- Tags: no-parallel
2021-09-12 12:35:27 +00:00
DROP TABLE IF EXISTS alter_attach;
CREATE TABLE alter_attach (x UInt64, p UInt8) ENGINE = MergeTree ORDER BY tuple() PARTITION BY p;
INSERT INTO alter_attach VALUES (1, 1), (2, 1), (3, 1);
ALTER TABLE alter_attach DETACH PARTITION 1;
ALTER TABLE alter_attach ADD COLUMN s String;
INSERT INTO alter_attach VALUES (4, 2, 'Hello'), (5, 2, 'World');
ALTER TABLE alter_attach ATTACH PARTITION 1;
SELECT * FROM alter_attach ORDER BY x;
ALTER TABLE alter_attach DETACH PARTITION 2;
ALTER TABLE alter_attach DROP COLUMN s;
INSERT INTO alter_attach VALUES (6, 3), (7, 3);
ALTER TABLE alter_attach ATTACH PARTITION 2;
SELECT * FROM alter_attach ORDER BY x;
DROP TABLE alter_attach;