MySQL查询where条件加FIND_IN_SET查询过慢

1、查询的SQL

需求很简单，就是从视图表dept_point_view查出一些数据，数据量也就500多条，但是查询会好事7秒多

select
        ID as ID,
        deptId as deptId,
        DEPT_CODE as deptCode,
        DEPT_NAME as deptName,
        SHORT_NAME as shortName,
        DEPT_ADDRESS as deptAddress,
        SCORE_CONTENT as scoreContent,
        SCORE_NUM as scoreNum,
        (CASE
        WHEN STATUS='1' THEN '已提交'    
        WHEN STATUS='2' THEN '已审核'
        WHEN STATUS='4' THEN '已驳回'
        ELSE '' END) as  status 
        from dept_point_view        
WHERE FIND_IN_SET(DEPT_ID,getChildLst(#{t.deptId,jdbcType=VARCHAR}))
AND `STATUS`!=0 and `STATUS`!=3 
ORDER BY DEPT_ID limit 0,10

2、问题

开始以为是其他查询条件问题，在我设置的getChildLst(),纠结了好久，才逐步意识到有可能是FIND_IN_SET出现的问题，最后多亏了这位博主：https://blog.csdn.net/wokelv/article/details/78915502

问题得以解决

select
        ID as ID,
        deptId as deptId,
        DEPT_CODE as deptCode,
        DEPT_NAME as deptName,
        SHORT_NAME as shortName,
        DEPT_ADDRESS as deptAddress,
        SCORE_CONTENT as scoreContent,
        SCORE_NUM as scoreNum,
        (CASE
        WHEN STATUS='1' THEN '已提交'    
        WHEN STATUS='2' THEN '已审核'
        WHEN STATUS='4' THEN '已驳回'
        ELSE '' END) as  status 
        from dept_point_view       
,(SELECT getChildLst('6c20df3a7294480cab85e7caacfdb869') cids) t WHERE FIND_IN_SET(deptId,cids)
  AND `STATUS`!=0 and `STATUS`!=3 
  ORDER BY DEPT_ID limit 0,10

先把函数返回来的缓存