4 20G 1 2000000000 10G engine Memory MergeTree ORDER BY tuple() type Float32 Float32 NULL CREATE TABLE `zz_{type}_{engine}` (x {type}) ENGINE {engine} INSERT INTO `zz_{type}_{engine}` SELECT rand() FROM numbers(1000000000) SELECT sum(x) FROM `zz_{type}_{engine}` DROP TABLE IF EXISTS `zz_{type}_{engine}`