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From "Jesus Camacho Rodriguez (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-21156) SharedWorkOptimizer may preserve filter in TS incorrectly
Date Wed, 23 Jan 2019 22:29:00 GMT

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

Jesus Camacho Rodriguez updated HIVE-21156:
-------------------------------------------
    Attachment: HIVE-21156.patch

> 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.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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