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https://issues.apache.org/jira/browse/HIVE-19493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16473666#comment-16473666
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Matt McCline commented on HIVE-19493:
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I'm creating a new TestVectorDateAddSub UT that generates random data/NULLs and
batches with specific isRepeating patterns. When I run it without your patch I
see failures which is encouraging. It is based on changes in HIVE-19384 which
Teddy is code reading, so I need to get that one in first.
> 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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