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https://issues.apache.org/jira/browse/HIVE-8092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14136187#comment-14136187
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Gopal V commented on HIVE-8092:
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LGTM - +1
> Vectorized Tez count(*) returns NULL instead of 0 when result is empty
> ----------------------------------------------------------------------
>
> Key: HIVE-8092
> URL: https://issues.apache.org/jira/browse/HIVE-8092
> Project: Hive
> Issue Type: Bug
> Components: Tez, Vectorization
> Affects Versions: 0.14.0
> Reporter: Matt McCline
> Assignee: Matt McCline
> Priority: Critical
> Attachments: HIVE-8092.01.patch, HIVE-8092.02.patch,
> HIVE-8092.03.patch, HIVE-8092.04.patch
>
>
> In tez mode when vectorization is enabled, count returns NULL when result is
> empty.
> Expected behavior: It should return 0
> count works as expected when vectorization is off
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