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https://issues.apache.org/jira/browse/SPARK-32332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17168031#comment-17168031
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Apache Spark commented on SPARK-32332:
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User 'andygrove' has created a pull request for this issue:
https://github.com/apache/spark/pull/29310
> AQE doesn't adequately allow for Columnar Processing extension
> ---------------------------------------------------------------
>
> Key: SPARK-32332
> URL: https://issues.apache.org/jira/browse/SPARK-32332
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Thomas Graves
> Assignee: Wenchen Fan
> Priority: Major
> Fix For: 3.1.0
>
>
> In SPARK-27396 we added support to extended Columnar Processing. We did the
> initial work as to what we thought was sufficient but adaptive query
> execution was being developed at the same time.
> We have discovered that the changes made to AQE are not sufficient for users
> to properly extend it for columnar processing because AQE hardcodes to look
> for specific classes/execs.
>
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