1UP_SQL = """ 2ALTER TABLE special_tasks ADD requested_by_id integer; 3 4ALTER TABLE special_tasks ADD CONSTRAINT special_tasks_requested_by_id 5 FOREIGN KEY (requested_by_id) REFERENCES users (id) ON DELETE NO ACTION; 6""" 7 8DOWN_SQL = """ 9ALTER TABLE special_tasks DROP FOREIGN KEY special_tasks_requested_by_id; 10ALTER TABLE special_tasks DROP COLUMN requested_by_id; 11""" 12