USE test;
DROP FUNCTION IF EXISTS hello;
SET autocommit=1;
BEGIN;
CREATE FUNCTION hello (s CHAR(20))
RETURNS CHAR(50) DETERMINISTIC
RETURN CONCAT('Hello, ',s,'!');
SELECT (@@server_id) INTO @a;
SELECT IF(@a <> @TMASTER_ID,'OK (slave)','FAIL (master)') AS result;
result
OK (slave)
DROP FUNCTION hello;
COMMIT;