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https://issues.apache.org/jira/browse/HIVE-17011?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16072220#comment-16072220
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Jesus Camacho Rodriguez commented on HIVE-17011:
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[~rajesh.balamohan], thanks for the patch. The idea is good, maybe we could add
invalidation of the cached expressions when we call the setter methods in those
descriptors?
> PlanUtils.getExprList() causes memory pressure when invoked from
> SharedWorkOptimizer on queries with lots of union operators
> ----------------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-17011
> URL: https://issues.apache.org/jira/browse/HIVE-17011
> Project: Hive
> Issue Type: Bug
> Reporter: Rajesh Balamohan
> Priority: Minor
> Attachments: CPU_usage.png, HIVE-17011.1.patch, Memory_usage.png
>
>
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