jackwener commented on issue #6790:
URL: 
https://github.com/apache/arrow-datafusion/issues/6790#issuecomment-1618006762

   > I hope to find time to work on this issue later in the week if you haven't 
had a chance @jackwener
   
   This problem is caused by #6595. 
   
   Although the idea of #6595 is right, we cannot change so for the time being. 
Because it will expose the current design problem ( schema will be change in 
optimization).
   
   I solve it with #6826 by add `Field` in `Alias`, but I am worried that it 
will bring more complexity, so I think a better temporary method is to revert 
#6595
   
   


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