gzwz commented on issue #25063:
URL: 
https://github.com/apache/shardingsphere/issues/25063#issuecomment-1501082615

   org.apache.shardingsphere:shardingsphere-jdbc-core:5.3.2  
   
   this is  mys sql  
   ---------------------------------------------------------------------------
   SELECT 
       DISTINCT RES.* 
   FROM 
       (   SELECT 
               PROCDEF.* , 
               INSTANCE.INSTANCE_COUNT_ , 
               INC.INCIDENT_TYPE_ , 
               INC.INCIDENT_COUNT_ 
           FROM 
               ACT_RE_PROCDEF PROCDEF 
           LEFT OUTER JOIN 
               (   SELECT 
                       E.PROC_DEF_ID_ , 
                       COUNT(E.PROC_INST_ID_) AS INSTANCE_COUNT_ 
                   FROM 
                       ACT_RU_EXECUTION E 
                   WHERE 
                       E.PARENT_ID_ IS NULL 
                   GROUP BY 
                       E.PROC_DEF_ID_ ) INSTANCE 
           ON 
               PROCDEF.ID_ = INSTANCE.PROC_DEF_ID_ 
           LEFT OUTER JOIN 
               (   SELECT 
                       I.PROC_DEF_ID_ , 
                       I.INCIDENT_TYPE_ , 
                       COUNT(I.ID_) AS INCIDENT_COUNT_ 
                   FROM 
                       ACT_RU_INCIDENT I 
                   WHERE 
                       I.ID_ = I.ROOT_CAUSE_INCIDENT_ID_ 
                   GROUP BY 
                       I.PROC_DEF_ID_, 
                       I.INCIDENT_TYPE_ ) INC 
           ON 
               PROCDEF.ID_ = INC.PROC_DEF_ID_ ) RES 
   ORDER BY 
       RES.ID_ ASC 
   ------------------------------------------------------------------------
   the query  result of the query is 18 columns
   
   
![图片](https://user-images.githubusercontent.com/15667193/230763802-289b3dc9-ab9d-48bd-a320-3cc925c37fce.png)
   
   and 
   
   
![图片](https://user-images.githubusercontent.com/15667193/230764102-380d9853-d6bf-46f6-9c88-bd782f035730.png)
   
   
   The original results found in the above figure are still correct, but at 
this point, errors begin to occur
   
   
![图片](https://user-images.githubusercontent.com/15667193/230764493-85e329f9-d245-4fde-b48a-21801dc1858e.png)
   
   After taking column 19 here, it will cause the boundary to be crossed later 
on
   
![图片](https://user-images.githubusercontent.com/15667193/230764587-a0cec7eb-d7fb-47ef-b9a3-e2b14ac4fd88.png)
   
   
   
   
   
   
   
   
   
   


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