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https://issues.apache.org/jira/browse/HIVE-21503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16801173#comment-16801173
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Gopal V commented on HIVE-21503:
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Was that a CASE expression bug or a regex bug or a concat bug?
> Vectorization: query with regex gives incorrect results with vectorization
> --------------------------------------------------------------------------
>
> Key: HIVE-21503
> URL: https://issues.apache.org/jira/browse/HIVE-21503
> Project: Hive
> Issue Type: Bug
> Components: Vectorization
> Reporter: Rajesh Balamohan
> Assignee: Laszlo Bodor
> Priority: Major
>
> i see wrong results with vectorization. Without vectorization, it works fine.
> Suspecting minor issue in {{StringGroupColConcatCharScalar}}
> {noformat}
> e.g
> WHEN x like '%radio%' THEN 'radio'
> WHEN x like '%tv%' THEN 'tv'
> {noformat}
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