[GitHub] [spark] cloud-fan commented on pull request #42317: [SPARK-44649][SQL] Runtime Filter supports passing equivalent creation side expressions

["cloud-fan (via GitHub)" <gi...@apache.org>]

cloud-fan commented on PR #42317:
URL: https://github.com/apache/spark/pull/42317#issuecomment-1702329344

   I have no idea how to review the code change here. I understand the general idea but how to map it to the actual code? What does the `def extract` do today and why do you add a new parameter to it? 


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