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https://issues.apache.org/jira/browse/HIVE-21156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16751432#comment-16751432
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Vineet Garg commented on HIVE-21156:
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LGTM +1
> SharedWorkOptimizer may preserve filter in TS incorrectly
> ---------------------------------------------------------
>
> Key: HIVE-21156
> URL: https://issues.apache.org/jira/browse/HIVE-21156
> Project: Hive
> Issue Type: Bug
> Components: Physical Optimizer
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
> Attachments: HIVE-21156.01.patch, HIVE-21156.patch
>
>
> For some scan reutilizations, we may end up with a Filter expression
> associated with the scan that should be removed by the optimizer. This can
> lead to incorrect results. Repro case is part of the patch.
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