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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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Prasanth Jayachandran updated HIVE-19578:
-----------------------------------------
    Status: Patch Available  (was: Open)

> 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: HIVE-19578.1.patch, 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.  !Screen Shot 2018-05-16 at 
> 15.29.12 .png!



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