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https://issues.apache.org/jira/browse/HIVE-11671?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hari Sankar Sivarama Subramaniyan updated HIVE-11671:
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Attachment: HIVE-11671.2.patch
> Optimize RuleRegExp in DPP codepath
> -----------------------------------
>
> Key: HIVE-11671
> URL: https://issues.apache.org/jira/browse/HIVE-11671
> Project: Hive
> Issue Type: Sub-task
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Attachments: HIVE-11671.1.patch, HIVE-11671.2.patch,
> cpu_with_patch.png, cpu_without_patch.png, mem_with_patch.png,
> mem_without_patch.png
>
>
> When running a large query with DPP in its codepath, RuleRegExp came up as
> hotspot. Creating this JIRA to optimize RuleRegExp.java.
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