owpengram-server/deploy/migrations/0026_peer_star_gifts.up.sql

52 lines
2.1 KiB
SQL

-- Star gifts are owned by a peer, not only by users: user gifts are addressed by
-- inputSavedStarGiftUser.msg_id, while channel gifts are addressed by
-- inputSavedStarGiftChat{peer,saved_id}.
DO $$
BEGIN
IF to_regclass('public.user_star_gifts') IS NOT NULL
AND to_regclass('public.peer_star_gifts') IS NULL THEN
ALTER TABLE public.user_star_gifts RENAME TO peer_star_gifts;
END IF;
IF EXISTS (
SELECT 1 FROM information_schema.columns
WHERE table_schema = 'public'
AND table_name = 'peer_star_gifts'
AND column_name = 'owner_user_id'
) THEN
ALTER TABLE public.peer_star_gifts RENAME COLUMN owner_user_id TO owner_peer_id;
END IF;
END $$;
ALTER TABLE public.peer_star_gifts
ADD COLUMN IF NOT EXISTS owner_peer_type text DEFAULT 'user' NOT NULL,
ADD COLUMN IF NOT EXISTS saved_id bigint DEFAULT 0 NOT NULL;
ALTER TABLE public.peer_star_gifts
DROP CONSTRAINT IF EXISTS user_star_gifts_owner_msg_uniq,
DROP CONSTRAINT IF EXISTS peer_star_gifts_owner_peer_type_check,
DROP CONSTRAINT IF EXISTS peer_star_gifts_ref_check;
DROP INDEX IF EXISTS public.user_star_gifts_owner_idx;
DROP INDEX IF EXISTS public.peer_star_gifts_owner_idx;
DROP INDEX IF EXISTS public.peer_star_gifts_user_msg_uniq;
DROP INDEX IF EXISTS public.peer_star_gifts_channel_saved_uniq;
ALTER TABLE public.peer_star_gifts
ADD CONSTRAINT peer_star_gifts_owner_peer_type_check CHECK (owner_peer_type IN ('user', 'channel')),
ADD CONSTRAINT peer_star_gifts_ref_check CHECK (
(owner_peer_type = 'user' AND msg_id > 0 AND saved_id = 0)
OR
(owner_peer_type = 'channel' AND msg_id > 0 AND saved_id > 0)
);
CREATE UNIQUE INDEX peer_star_gifts_user_msg_uniq
ON public.peer_star_gifts (owner_peer_type, owner_peer_id, msg_id)
WHERE owner_peer_type = 'user' AND msg_id > 0;
CREATE UNIQUE INDEX peer_star_gifts_channel_saved_uniq
ON public.peer_star_gifts (owner_peer_type, owner_peer_id, saved_id)
WHERE owner_peer_type = 'channel' AND saved_id > 0;
CREATE INDEX peer_star_gifts_owner_idx
ON public.peer_star_gifts (owner_peer_type, owner_peer_id, gift_date DESC, id DESC);