development = count 1000000 ( 1 row ) Time : 1821.550 ms ( 00 : 01.822 ) development = count 1000000 ( 1 row ) Time : 885.396 ms development = I also created 2 new tables with 1 id column of type UUID and then I inserted 1 million rows into each table with respective UUID versions and queried it with a simple sort. development = CREATE TABLE development = CREATE TABLE development = INSERT 0 1000000 development = INSERT 0 1000000 development = Timing is on .