[jira] [Commented] (SPARK-40159) Aggregate should be group only after collapse project to aggregate

["Apache Spark (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-40159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17582456#comment-17582456 ] 

Apache Spark commented on SPARK-40159:
--------------------------------------

User 'wankunde' has created a pull request for this issue:
https://github.com/apache/spark/pull/37594

> Aggregate should be group only after collapse project to aggregate
> ------------------------------------------------------------------
>
>                 Key: SPARK-40159
>                 URL: https://issues.apache.org/jira/browse/SPARK-40159
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 3.3.0
>            Reporter: Wan Kun
>            Priority: Major
>
> CollapseProject rule will merge project expressions into AggregateExpressions in aggregate, which will make the *aggregate.groupOnly* to false.
> {code}
> val df = testData.distinct().select('key + 1, ('key + 1).cast("long"))
> df.queryExecution.optimizedPlan.collect {
>   case a: Aggregate => a
> }.foreach(agg => assert(agg.groupOnly === true)) 
> {code}



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