DELETE FROM sadhna_reward_grants WHERE source = 'gift';

DROP INDEX IF EXISTS sadhna_reward_grants_unopened_idx;
DROP INDEX IF EXISTS sadhna_reward_grants_gift_uniq;
DROP INDEX IF EXISTS sadhna_reward_grants_streak_uniq;

ALTER TABLE sadhna_reward_grants ALTER COLUMN milestone SET NOT NULL;
ALTER TABLE sadhna_reward_grants
    ADD CONSTRAINT sadhna_reward_grants_user_id_milestone_key UNIQUE (user_id, milestone);

ALTER TABLE sadhna_reward_grants DROP CONSTRAINT IF EXISTS sadhna_reward_grants_source_check;
ALTER TABLE sadhna_reward_grants DROP COLUMN IF EXISTS source;