bersprockets commented on PR #39518:
URL: https://github.com/apache/spark/pull/39518#issuecomment-1381055130

   @rednaxelafx 
   
   >Should we fix all occurrences of such pattern
   
   I checked this at some point. I could find only two additional cases:
   
   `SortOrder`
   `GeneratorOuter`
   
   I don't think either would show up in a projection, unless I misunderstand 
them.
   
   This also assumes my regex search is any good:
   
   ```
   find . -name "*.scala" | grep -v '/test' | xargs egrep -n -A5 '.*def 
withNewChildInternal' | grep '.asInstanceOf'
   ```
   There could be places where `withNewChildInternal` allows any expression but 
other methods assume a more specific type of expression. That would not be 
covered by my regex search, of course.


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