DROP TABLE IF EXISTS big_array; CREATE TABLE big_array (x Array(UInt8)) ENGINE=TinyLog; SET min_insert_block_size_rows = 0, min_insert_block_size_bytes = 0; INSERT INTO big_array SELECT groupArray(number % 255) AS x FROM (SELECT * FROM system.numbers LIMIT 1000000); SELECT count() FROM big_array ARRAY JOIN x; SELECT count() FROM big_array ARRAY JOIN x AS y; SELECT countIf(has(x, 10)), sum(y) FROM big_array ARRAY JOIN x AS y; SELECT countIf(has(x, 10)) FROM big_array ARRAY JOIN x AS y; SELECT countIf(has(x, 10)), sum(y) FROM big_array ARRAY JOIN x AS y WHERE 1; SELECT countIf(has(x, 10)) FROM big_array ARRAY JOIN x AS y WHERE 1; SELECT countIf(has(x, 10)), sum(y) FROM big_array ARRAY JOIN x AS y WHERE has(x,15); DROP TABLE big_array;