-- constant folding EXPLAIN SYNTAX SELECT 1 WHERE 1 = 0; EXPLAIN SYNTAX SELECT 1 WHERE 1 IN (0, 1, 2); EXPLAIN SYNTAX SELECT 1 WHERE 1 IN (0, 2) AND 2 = ((SELECT 2) AS subquery); -- no constant folding EXPLAIN SYNTAX SELECT 1 WHERE 1 IN ((SELECT arrayJoin([1, 2, 3])) AS subquery); EXPLAIN SYNTAX SELECT 1 WHERE NOT ignore();