ALTER TABLE release_approval_comments ADD COLUMN release_approval_id INT(10) UNSIGNED AFTER release_status_id, ADD CONSTRAINT `FK_approval_comments_approval_id` FOREIGN KEY (release_approval_id) REFERENCES release_approval_queue(release_approval_id);; ALTER TABLE release_approval_comments DROP FOREIGN KEY `FK_approval_comments_approval_id`;; ALTER TABLE release_approval_comments DROP COLUMN release_approval_id;;