BEGIN; ALTER TABLE patchwork_bundle_patches RENAME TO patchwork_bundlepatch; CREATE SEQUENCE bundlepatch_tmp_seq; ALTER TABLE patchwork_bundlepatch ADD COLUMN "order" INTEGER NOT NULL DEFAULT nextval('bundlepatch_tmp_seq'); ALTER TABLE patchwork_bundlepatch ALTER COLUMN "order" DROP DEFAULT; DROP SEQUENCE bundlepatch_tmp_seq; ALTER TABLE patchwork_bundlepatch ADD UNIQUE("bundle_id", "order"); COMMIT;