-- Notification list cursors are per account, per enabled generation.
-- A checkpoint and its events are committed in the same transaction.
ALTER TABLE creator_account_listener
    ADD COLUMN notice_checkpoints jsonb NOT NULL DEFAULT '{}'::jsonb,
    ADD COLUMN last_poll_at timestamptz,
    ADD CONSTRAINT creator_listener_checkpoint_object
        CHECK (jsonb_typeof(notice_checkpoints) = 'object');
-- A boundary established by the removed push adapter cannot seed list polling.
UPDATE creator_account_listener
SET boundary_at = NULL, last_delivery_id = '', status = CASE WHEN enabled THEN 'starting' ELSE 'stopped' END,
    reason = '', updated_at = now();