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https://issues.apache.org/jira/browse/SPARK-27083?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16786653#comment-16786653
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Apache Spark commented on SPARK-27083:
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User '10110346' has created a pull request for this issue:
https://github.com/apache/spark/pull/23998
> Add a config to control subqueryReuse
> -------------------------------------
>
> Key: SPARK-27083
> URL: https://issues.apache.org/jira/browse/SPARK-27083
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: liuxian
> Priority: Minor
>
> Subquery Reuse and Exchange Reuse are not the same feature， if we don't want
> to reuse subqueries，and we just want to reuse exchanges，only one
> configuration that cannot be done.
> So I think we should add a new configuration to control subqueryReuse.
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