SELECT toUUID('417ddc5de5564d2795dda34d84e46a50'); SELECT toUUID('417ddc5d-e556-4d27-95dd-a34d84e46a50'); DROP TABLE IF EXISTS t_uuid; CREATE TABLE t_uuid (x UInt8, y UUID, z String) ENGINE = TinyLog; INSERT INTO t_uuid VALUES (1, '417ddc5de5564d2795dda34d84e46a50', 'Example 1'); INSERT INTO t_uuid VALUES (2, '417ddc5d-e556-4d27-95dd-a34d84e46a51', 'Example 2'); SELECT * FROM t_uuid ORDER BY x ASC; DROP TABLE IF EXISTS t_uuid;