CREATE FUNCTION uniqueFlag(flags TEXT) RETURNS TEXT
BEGIN
	DECLARE output TEXT;
	DECLARE i INT DEFAULT 0;
	DECLARE len INT DEFAULT 0;
	DECLARE temp VARCHAR(1);

	SET len = LENGTH(flags);
	compareLoop:LOOP
		SET temp = SUBSTRING(flags FROM i FOR 1);
		SET output = IF(output NOT LIKE CONCAT('%', temp, '%'), CONCAT(output, temp), output);
		SET i = i + 1;
		IF i < len THEN ITERATE compareLoop; END IF;
		LEAVE compareLoop;
	END LOOP;
	RETURN output;
END