gistfile1.txt

      # 怪しいコード
      pinned = Pin.find(
        :all,
        :conditions => [ 'user_id = ?', auth.id ],
        :joins => 'LEFT OUTER JOIN last_modifieds ON pins.eid = last_modifieds.eid',
        :order => 'last_modifieds.date desc',
        :offset => start,
        :limit => num
      )

      # 発行されているクエリ
      SELECT "pins".* FROM "pins" LEFT OUTER JOIN last_modifieds ON pins.eid = last_modifieds.eid WHERE (user_id = XXX) ORDER BY last_modifieds.date desc LIMIT 10 OFFSET 0