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https://issues.apache.org/jira/browse/HIVE-16557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16005535#comment-16005535
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Gopal V commented on HIVE-16557:
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LGTM - +1 tests pending.
> Vectorization: Specialize ReduceSink empty key case
> ---------------------------------------------------
>
> Key: HIVE-16557
> URL: https://issues.apache.org/jira/browse/HIVE-16557
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: Matt McCline
> Assignee: Matt McCline
> Priority: Critical
> Attachments: HIVE-16557.01.patch, HIVE-16557.02.patch,
> HIVE-16557.03.patch, HIVE-16557.04.patch, HIVE-16557.05.patch,
> HIVE-16557.06.patch, HIVE-16557.07.patch, HIVE-16557.08.patch,
> HIVE-16557.091.patch, HIVE-16557.09.patch
>
>
> Gopal pointed out that native Vectorization of ReduceSink is missing the
> empty key case.
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