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Posted to reviews@spark.apache.org by "wankunde (via GitHub)" <gi...@apache.org> on 2023/12/11 13:58:00 UTC

[PR] [SPARK-46364][SQL] Push calculation from Aggregate through Expand [spark]

wankunde opened a new pull request, #44297:
URL: https://github.com/apache/spark/pull/44297

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   ### What changes were proposed in this pull request?
   
   Push down calculations in Aggregate through Expand, so the expressions will only be evaluated once.
   
   For example:
    
   Agg(grouping, sum($a + $b)) <= Expand <= Project, if $a and $b comes from the Project,
    
   a + b will be pushed down to the Project:
   
   Agg(grouping, sum("a + b")) <= Expand <= Project(old projections ++ ($a + $b).as("a + b"))
   
   ### Why are the changes needed?
   
   Optimize Aggregate following Expand operators
   
   
   ### Does this PR introduce _any_ user-facing change?
   
   No
   
   
   ### How was this patch tested?
   
   Added UT
   
   
   ### Was this patch authored or co-authored using generative AI tooling?
   
   No
   


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Re: [PR] [SPARK-46364][SQL] Push calculation from Aggregate through Expand [spark]

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #44297:
URL: https://github.com/apache/spark/pull/44297#issuecomment-2016213977

   We're closing this PR because it hasn't been updated in a while. This isn't a judgement on the merit of the PR in any way. It's just a way of keeping the PR queue manageable.
   If you'd like to revive this PR, please reopen it and ask a committer to remove the Stale tag!


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Re: [PR] [SPARK-46364][SQL] Push calculation from Aggregate through Expand [spark]

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] closed pull request #44297: [SPARK-46364][SQL] Push calculation from Aggregate through Expand
URL: https://github.com/apache/spark/pull/44297


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