如何提高此查询的性能？

Question

select m.ID,m.cell_number,cm.id 
from corporate_main_member m 
    , corporate_main_corporate_membership cm 
WHERE m.status = 'active' 
    AND m.ID IN (
     select cm.FK_Member_ID 
     from corporate_main_corporate_membership cm 
     WHERE cm.status = 'active' 
     AND cm.ID IN (
      select gm.FK_Corporate_Membership_ID 
      from corporate_main_group_membership gm 
      WHERE gm.status = 'active' 
      AND gm.FK_Group_id IN (168,169,170) 
      Group BY gm.FK_Corporate_Membership_ID 
      ) 
    ) 
    AND cm.fk_corporation_id = 5 
    AND cm.FK_Member_ID = m.id 

在：

1 Million records of corporate_main_member 
2 Million records of corporate_main_corporate_membership 
3 Million records of corporate_main_group_membership 

上面的查询停止MySQL的！直到前天，我一直在工作，当时我使用脚本向corporate_main_member和corporate_main_corporate_membership表添加了几千条记录。不确定它是相关的还是数据库大小超过某个导致严重性能问题的阈值。

任何帮助？我不知道索引或任何东西。架构是显而易见的。

Answer 1

试试这个，

SELECT m.ID, 
     m.cell_number, 
     cm.id 
FROM corporate_main_member m 
     INNER JOIN corporate_main_corporate_membership cm 
      ON cm.FK_Member_ID = m.id AND 
       cm.fk_corporation_id = 5 
     INNER JOIN 
     (
      SELECT ccm.FK_Member_ID 
      FROM corporate_main_corporate_membership ccm 
        INNER JOIN corporate_main_group_membership gm 
         ON ccm.ID = gm.FK_Corporate_Membership_ID 
      WHERE ccm.STATUS = 'active' AND 
        gm.STATUS = 'active' AND 
        gm.FK_Group_id IN (168, 169, 170) 
      GROUP BY ccm.FK_Member_ID 
     ) s ON m.ID = s.FK_Member_ID 
WHERE m.STATUS = 'active'