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https://issues.apache.org/jira/browse/SPARK-40159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17582455#comment-17582455
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Apache Spark commented on SPARK-40159:
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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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