如何將一個複雜的mysql結果集，再篩選一次

通過下面的極其複雜的sql語句，如下 SELECT d.id AS uid,(SELECT paystudate_id FROM erp_demand_meter as b WHERE demand_id = d.id ORDER BY addtime DESC LIMIT 1) as pp,  (SELECT uerdates FROM erp_demand_meter as b WHERE d

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