UPDATE events SET kind = 'session.error', payload = json_object('error', json_extract(payload, '$.payload.error'))
	WHERE kind = 'inbox.created' AND json_extract(payload, '$.kind') = 'session_error';
UPDATE events SET kind = 'session.rate_limited', payload = json_object(
		'vendor', json_extract(payload, '$.payload.vendor'),
		'rate_limit', json(json_extract(payload, '$.payload.rate_limit')),
		'error', json_extract(payload, '$.payload.error'))
	WHERE kind = 'inbox.created' AND json_extract(payload, '$.kind') = 'rate_limited';
DELETE FROM events WHERE kind IN ('inbox.created', 'inbox.updated') AND json_extract(payload, '$.kind') != 'question';
UPDATE events SET payload = json_remove(payload, '$.kind') WHERE kind IN ('inbox.created', 'inbox.updated');
DELETE FROM inbox_responses WHERE item_id IN (SELECT id FROM inbox_items WHERE kind != 'question');
DELETE FROM inbox_items WHERE kind != 'question';
ALTER TABLE inbox_items DROP COLUMN kind;