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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2021/12/20 07:03:00 UTC

[jira] [Commented] (SPARK-37689) Expand should be supported PropagateEmptyRelation

    [ https://issues.apache.org/jira/browse/SPARK-37689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17462414#comment-17462414 ] 

Apache Spark commented on SPARK-37689:
--------------------------------------

User 'AngersZhuuuu' has created a pull request for this issue:
https://github.com/apache/spark/pull/34954

> Expand should be supported PropagateEmptyRelation
> -------------------------------------------------
>
>                 Key: SPARK-37689
>                 URL: https://issues.apache.org/jira/browse/SPARK-37689
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.2.0
>            Reporter: angerszhu
>            Priority: Major
>         Attachments: image-2021-12-20-14-30-34-276.png, image-2021-12-20-14-31-16-893.png
>
>
> Empty LocalScan still trigger HashAggregate execute. Expand should be supported in PropagateEmptyRelation too.
> !image-2021-12-20-14-30-34-276.png|width=347,height=336!



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