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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2021/06/16 06:38:26 UTC

[GitHub] [spark] neilagupta commented on pull request #32925: SPARK-35622: DataFrame's count function do not need groupBy and avoid shuffle

neilagupta commented on pull request #32925:
URL: https://github.com/apache/spark/pull/32925#issuecomment-862090371


   Is there a way we can benchmark the before and after to validate the avoided shuffle? Or if it was done already, somehow have the unit test expose the resulting difference?


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