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https://issues.apache.org/jira/browse/SPARK-34637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17295839#comment-17295839
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Apache Spark commented on SPARK-34637:
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User 'JkSelf' has created a pull request for this issue:
https://github.com/apache/spark/pull/31756

> Support DPP in AQE when the boradcast exchange can be reused
> ------------------------------------------------------------
>
>                 Key: SPARK-34637
>                 URL: https://issues.apache.org/jira/browse/SPARK-34637
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.1.1
>            Reporter: Ke Jia
>            Priority: Major
>
> We have supported DPP in AQE when the join is Broadcast hash join before 
> applying the AQE rules in SPARK-34168, which has some limitations. It only 
> apply DPP when the small table side executed firstly and then the big table 
> side can reuse the broadcast exchange in small table side. This Jira is to 
> address the above limitations and can apply the DPP when the broadcast 
> exchange can be reused.



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