SET send_logs_level = 'none'; DROP TABLE IF EXISTS test.test; CREATE TABLE test.test(date Date, id Int8, name String, value Int64) ENGINE = MergeTree(date, (id, date), 8192); INSERT INTO test.test VALUES('2000-01-01', 1, 'test string 1', 1); INSERT INTO test.test VALUES('2000-01-01', 2, 'test string 2', 2); SET enable_optimize_predicate_expression = 1; SELECT '-------Query that previously worked but now doesn\'t work.-------'; SELECT * FROM (SELECT 1) WHERE `1` = 1; -- { serverError 47 } SELECT '-------Not need optimize predicate, but it works.-------'; SELECT 1; SELECT 1 AS id WHERE id = 1; SELECT arrayJoin([1,2,3]) AS id WHERE id = 1; SELECT '-------Need push down-------'; SELECT * FROM (SELECT arrayJoin([1, 2, 3]) AS id) WHERE id = 1; SELECT id FROM (SELECT arrayJoin([1, 2, 3]) AS id) WHERE id = 1; SELECT date, id, name, value FROM (SELECT date, name, value,min(id) AS id FROM test.test GROUP BY date, name, value) WHERE id = 1; SET force_primary_key = 1; -- Optimize predicate expression with asterisk SELECT * FROM (SELECT * FROM test.test) WHERE id = 1; -- Optimize predicate expression with asterisk and nested subquery SELECT * FROM (SELECT * FROM (SELECT * FROM test.test)) WHERE id = 1; -- Optimize predicate expression with qualified asterisk SELECT * FROM (SELECT b.* FROM (SELECT * FROM test.test) AS b) WHERE id = 1; -- Optimize predicate expression without asterisk SELECT * FROM (SELECT date, id, name, value FROM test.test) WHERE id = 1; -- Optimize predicate expression without asterisk and contains nested subquery SELECT * FROM (SELECT date, id, name, value FROM (SELECT date, id, name, value FROM test.test)) WHERE id = 1; -- Optimize predicate expression with qualified SELECT * FROM (SELECT * FROM test.test) AS b WHERE b.id = 1; -- Optimize predicate expression with qualified and nested subquery SELECT * FROM (SELECT * FROM (SELECT * FROM test.test) AS a) AS b WHERE b.id = 1; -- Optimize predicate expression with aggregate function SELECT * FROM (SELECT id, date, min(value) AS value FROM test.test GROUP BY id, date) WHERE id = 1; -- Optimize predicate expression with union all query SELECT * FROM (SELECT * FROM test.test UNION ALL SELECT * FROM test.test) WHERE id = 1; -- Optimize predicate expression with join query SELECT * FROM (SELECT * FROM test.test) ANY LEFT JOIN (SELECT * FROM test.test) USING id WHERE id = 1; -- Optimize predicate expression with join and nested subquery SELECT * FROM (SELECT * FROM (SELECT * FROM test.test) ANY LEFT JOIN (SELECT * FROM test.test) USING id) WHERE id = 1; -- Optimize predicate expression with join query and qualified SELECT * FROM (SELECT 1 AS id, toDate('2000-01-01') AS date FROM system.numbers LIMIT 1) ANY LEFT JOIN (SELECT * FROM test.test) AS b USING date WHERE b.id = 1; SELECT '-------Push to having expression, need check.-------'; SELECT id FROM (SELECT min(id) AS id FROM test.test) WHERE id = 1; -- { serverError 277 } SELECT '-------Compatibility test-------'; SELECT * FROM (SELECT 1 AS id, toDate('2000-01-01') AS date FROM system.numbers LIMIT 1) ANY LEFT JOIN (SELECT * FROM test.test) AS b USING date WHERE b.date = toDate('2000-01-01'); -- {serverError 47} DROP TABLE IF EXISTS test.test;