HeartSaVioR opened a new pull request, #39245:
URL: https://github.com/apache/spark/pull/39245

   ### What changes were proposed in this pull request?
   
   This PR proposes to apply tree-pattern based pruning for the rule 
SessionWindowing, to minimize the evaluation of rule with SessionWindow node.
   
   ### Why are the changes needed?
   
   The rule SessionWindowing is unnecessarily evaluated multiple times without 
proper pruning.
   
   ### Does this PR introduce _any_ user-facing change?
   
   No.
   
   ### How was this patch tested?
   
   Existing tests.


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