SELECT '-- check that partition key with ignore works correctly'; DROP TABLE IF EXISTS partition_by_ignore SYNC; CREATE TABLE partition_by_ignore (ts DateTime, ts_2 DateTime) ENGINE=MergeTree PARTITION BY (toYYYYMM(ts), ignore(ts_2)) ORDER BY tuple(); INSERT INTO partition_by_ignore SELECT toDateTime('2022-08-03 00:00:00') + toIntervalDay(number), toDateTime('2022-08-04 00:00:00') + toIntervalDay(number) FROM numbers(60); EXPLAIN ESTIMATE SELECT count() FROM partition_by_ignore WHERE ts BETWEEN toDateTime('2022-08-07 00:00:00') AND toDateTime('2022-08-10 00:00:00') FORMAT CSV; EXPLAIN ESTIMATE SELECT count() FROM partition_by_ignore WHERE ts_2 BETWEEN toDateTime('2022-08-07 00:00:00') AND toDateTime('2022-08-10 00:00:00') FORMAT CSV; DROP TABLE IF EXISTS partition_by_ignore SYNC;