KnightChess commented on PR #46742:
URL: https://github.com/apache/spark/pull/46742#issuecomment-2144183667

   @peter-toth There should be problems in the rule, but from the final result, 
can't find any problems at the user level. `Project` always is the top logical 
plan, unless some optimization rules are name mapping? @cloud-fan Can you help 
look at this question? Is there necessary for fix?


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