findepi opened a new pull request, #17393:
URL: https://github.com/apache/datafusion/pull/17393

   Before the changes, `PartialOrd` could return `Some(Equal)` for two `Window` 
nodes that are not equal in `PartialEq` sense. This is violation of 
`PartialOrd` contract.
   
   The fix is to consult eq inside ord implementation. If ord thinks two 
instances are equal, but they are not equal in Eq sense, they are considered 
incomparable.
   
   - follows https://github.com/apache/datafusion/pull/17182
   - for https://github.com/apache/datafusion/issues/17064


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