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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2022/02/18 09:16:16 UTC

[GitHub] [spark] sigmod commented on pull request #35552: [SPARK-38237][SQL][SS] Introduce a new config to require all cluster keys on Aggregate

sigmod commented on pull request #35552:
URL: https://github.com/apache/spark/pull/35552#issuecomment-1044194776


   > The partial aggregate will be the major cost here.
   
   Would this PR's config will be useful, when combined with your internal work mentioned here?
   https://github.com/apache/spark/pull/28804#issuecomment-854089520
   
   Say, key1 is `gender` and key2 is `customerId`,  parallelism 2 is too low even if you can smartly skip partial agg.


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