[jira] [Updated] (SPARK-46364) Push calculation from Aggregate through Expand

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-46364?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated SPARK-46364:
-----------------------------------
    Labels: pull-request-available  (was: )

> Push calculation from Aggregate through Expand
> ----------------------------------------------
>
>                 Key: SPARK-46364
>                 URL: https://issues.apache.org/jira/browse/SPARK-46364
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 4.0.0
>            Reporter: Wan Kun
>            Priority: Major
>              Labels: pull-request-available
>
> 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"))



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