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https://issues.apache.org/jira/browse/HIVE-19493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16474438#comment-16474438
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Matt McCline commented on HIVE-19493:
-------------------------------------
I wrote a new UT called TestVectorDateDiff (not checked in yet) that uses
random data and patterns of batches with all the isRepeated NULL/non-NULL
permutations. It has 6 test failures all involving NULLs. It is dependent on
HIVE-19498 which I queued today for Hive QA and code review by Teddy.
> VectorUDFDateDiffColCol copySelected does not handle nulls correctly
> --------------------------------------------------------------------
>
> Key: HIVE-19493
> URL: https://issues.apache.org/jira/browse/HIVE-19493
> Project: Hive
> Issue Type: Bug
> Components: Vectorization
> Reporter: Vihang Karajgaonkar
> Assignee: Vihang Karajgaonkar
> Priority: Major
> Attachments: HIVE-19493.01.patch, HIVE-19493.02.patch
>
>
> The {{copySelected}} method in {{VectorUDFDateDiffColCol}} class was missed
> during HIVE-18622
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