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https://issues.apache.org/jira/browse/HIVE-12315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14986539#comment-14986539
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Matt McCline commented on HIVE-12315:
-------------------------------------
Gopal suspects this might be related to the recent HIVE-10235 "Loop
optimization for SIMD in ColumnDivideColumn.txt (chengxiang, reviewed by Gopal
V)" change.
> vectorization_short_regress.q has a wrong result issue for a double
> calculation
> -------------------------------------------------------------------------------
>
> Key: HIVE-12315
> URL: https://issues.apache.org/jira/browse/HIVE-12315
> Project: Hive
> Issue Type: Bug
> Components: Vectorization
> Reporter: Matt McCline
> Assignee: Matt McCline
> Priority: Critical
> Attachments: vectorization_short_regress_bug.q
>
>
> I suspect it is related to the fancy optimizations in vectorized double
> divide that try to quickly process the batch without checking each row for
> null.
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