DROP TABLE IF EXISTS test_00974; CREATE TABLE test_00974 ( date Date, x Int32, ver UInt64 ) ENGINE = ReplacingMergeTree(date, x, 4096); INSERT INTO test_00974 VALUES ('2019-07-23', 1, 1), ('2019-07-23', 1, 2); INSERT INTO test_00974 VALUES ('2019-07-23', 2, 1), ('2019-07-23', 2, 2); SELECT COUNT() FROM (SELECT * FROM test_00974 FINAL) where x = 1 SETTINGS allow_push_predicate_to_final_subquery = 0 FORMAT JSON ; SELECT COUNT() FROM (SELECT * FROM test_00974 FINAL) where x = 1 SETTINGS allow_push_predicate_to_final_subquery = 1 FORMAT JSON ; DROP TABLE test_00974;