-- This file should undo anything in `up.sql`
ALTER TABLE klassen RENAME COLUMN klassen_id TO id;
ALTER TABLE vertretungen RENAME COLUMN vertretungen_id TO id;
ALTER TABLE vertretungen RENAME COLUMN klassen_id TO klasse_id;
ALTER TABLE vertretungen RENAME COLUMN stunden_id TO stunde_id;
ALTER TABLE stunden RENAME COLUMN stunden_id TO id;