ALTER TABLE IF EXISTS api.toys ADD COLUMN IF NOT EXISTS toy_id_num INT; ALTER TABLE IF EXISTS api.toys ADD COLUMN IF NOT EXISTS created_at TIMESTAMP WITHOUT TIME ZONE; ALTER TABLE IF EXISTS api.toys ADD COLUMN IF NOT EXISTS updated_at TIMESTAMP WITHOUT TIME ZONE; ALTER TABLE IF EXISTS api.toys ADD COLUMN IF NOT EXISTS created_by_id_num INT; ALTER TABLE IF EXISTS api.toys ADD COLUMN IF NOT EXISTS updated_by_id_num INT; ALTER TABLE IF EXISTS api.toys ADD COLUMN IF NOT EXISTS created_by_id UUID; ALTER TABLE IF EXISTS api.toys ADD COLUMN IF NOT EXISTS updated_by_id UUID;