-- Partial unique index: prevents duplicate RECORDING_CREATE / RECORDING_FEATURED points
-- for the same recording. RECORDING_PLAY / RECORDING_COMPLETE are excluded so a user
-- can earn play points across multiple sessions.
CREATE UNIQUE INDEX "user_points_unique_action_recording"
ON "user_points" ("user_id", "action", "recording_id")
WHERE "action" IN ('RECORDING_CREATE', 'RECORDING_FEATURED') AND "recording_id" IS NOT NULL;