-- Revert mimas-talos:2019-07-25-answer-add-low_quality from mysql

BEGIN;
ALTER TABLE `api_diary` DROP COLUMN `low_quality`;
ALTER TABLE `api_diary` DROP COLUMN `low_quality_deal`;
ALTER TABLE `api_tractate` DROP COLUMN `low_quality`;
ALTER TABLE `api_tractate` DROP COLUMN `low_quality_deal`;
COMMIT;
