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https://issues.apache.org/jira/browse/HIVE-18742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16368070#comment-16368070
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Sergey Shelukhin commented on HIVE-18742:
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+1 adding explain to the test would be nice, to see the nullscan
> Vectorization acid/inputformat check should allow
> NullRowsInputFormat/OneNullRowInputFormat
> -------------------------------------------------------------------------------------------
>
> Key: HIVE-18742
> URL: https://issues.apache.org/jira/browse/HIVE-18742
> Project: Hive
> Issue Type: Bug
> Components: Vectorization
> Reporter: Jason Dere
> Assignee: Jason Dere
> Priority: Major
> Attachments: HIVE-18742.1.patch
>
>
> Vectorizer.verifyAndSetVectorPartDesc() has a Preconditions check to ensure
> the InputFormat is ORC only. However there can be metadataonly or empty
> result optimizations on Acid tables, which change the input format to
> NullRows/OneNullRowInputFormat, which gets tripped up on this check.
> Relaxing this check to allow nullrows and onenullrow input formats.
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