ALTER TABLE icinga_service_set ADD COLUMN uuid VARBINARY(16) DEFAULT NULL AFTER id; SET @tmp_uuid = LOWER(CONCAT( LPAD(HEX(FLOOR(RAND() * 0xffff)), 4, '0'), LPAD(HEX(FLOOR(RAND() * 0xffff)), 4, '0'), '-', LPAD(HEX(FLOOR(RAND() * 0xffff)), 4, '0'), '-', '4', LPAD(HEX(FLOOR(RAND() * 0x0fff)), 3, '0'), '-', HEX(FLOOR(RAND() * 4 + 8)), LPAD(HEX(FLOOR(RAND() * 0x0fff)), 3, '0'), '-', LPAD(HEX(FLOOR(RAND() * 0xffff)), 4, '0'), LPAD(HEX(FLOOR(RAND() * 0xffff)), 4, '0'), LPAD(HEX(FLOOR(RAND() * 0xffff)), 4, '0') )); UPDATE icinga_service_set SET uuid = UNHEX(LPAD(LPAD(HEX(id), 8, '0'), 32, REPLACE(@tmp_uuid, '-', ''))) WHERE uuid IS NULL; ALTER TABLE icinga_service_set MODIFY COLUMN uuid VARBINARY(16) NOT NULL, ADD UNIQUE INDEX uuid (uuid); INSERT INTO director_schema_migration (schema_version, migration_time) VALUES ('177', NOW());