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Posted to issues@hive.apache.org by "Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org> on 2019/01/23 22:28:00 UTC

[jira] [Work started] (HIVE-21156) SharedWorkOptimizer may preserve filter in TS incorrectly

     [ https://issues.apache.org/jira/browse/HIVE-21156?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on HIVE-21156 started by Jesus Camacho Rodriguez.
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> 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
>
> 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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