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https://issues.apache.org/jira/browse/HIVE-19578?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Shelukhin updated HIVE-19578:
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Attachment: Screen Shot 2018-05-16 at 15.29.12 .png
> HLL merges tempList on every add
> --------------------------------
>
> Key: HIVE-19578
> URL: https://issues.apache.org/jira/browse/HIVE-19578
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Prasanth Jayachandran
> Priority: Major
> Attachments: Screen Shot 2018-05-16 at 15.29.12 .png
>
>
> See comments on HIVE-18866; this has significant perf overhead after the even
> bigger overhead from hashing is removed.
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