kimmking edited a comment on issue #4565: distinct returns wrong result
URL: 
https://github.com/apache/incubator-shardingsphere/issues/4565#issuecomment-594426703
 
 
   If table user ~ 2 databases and 3 tables of each.
   ```
   1.select distinct age from user                           => wrong
   2.select distinct age from user group by age     
   3.select distinct age from user order by age  
   4.select distinct age from user group by age order by age
   5.select distinct age from user group by name 
   6.select distinct age from user order by id 
   7.select distinct age from user group by name order by id 
   8.select distinct age from user group by 1
   ```
   
   All of above sqls will executed to right result except the first one.
   
   

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