SELECT eco_truename, eco_uid, max(checkup_time) AS time FROM es_checkup_order WHERE checkup_time < 1469944460 GROUP BY eco_uid ORDER BY checkup_time DESC
SELECT eco_truename, eco_uid, max(checkup_time) AS time FROM es_checkup_order WHERE checkup_time < 1469944460 GROUP BY eco_uid ORDER BY checkup_time DESC