DROP TABLE IF EXISTS t_03203;
CREATE TABLE t_03203 (p UInt64, v UInt64) ENGINE = MergeTree PARTITION BY p ORDER BY v;
INSERT INTO t_03203 VALUES (1, 1), (2, 2), (3, 3);
SELECT * FROM t_03203 ORDER BY p, v;
ALTER TABLE t_03203 DETACH PARTITION ALL;
SELECT count() FROM system.detached_parts WHERE database = currentDatabase() AND table = 't_03203';
ALTER TABLE t_03203 DROP DETACHED PARTITION ALL SETTINGS allow_drop_detached = 1;
SELECT count() FROM system.detached_parts WHERE database = currentDatabase() AND table = 't_03203';