[jira] [Work logged] (HIVE-24242) Relax safety checks in SharedWorkOptimizer

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-24242?focusedWorklogId=531615&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-531615 ]

ASF GitHub Bot logged work on HIVE-24242:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 06/Jan/21 01:09
            Start Date: 06/Jan/21 01:09
    Worklog Time Spent: 10m 
      Work Description: github-actions[bot] closed pull request #1564:
URL: https://github.com/apache/hive/pull/1564


   


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 531615)
    Time Spent: 40m  (was: 0.5h)

> Relax safety checks in SharedWorkOptimizer
> ------------------------------------------
>
>                 Key: HIVE-24242
>                 URL: https://issues.apache.org/jira/browse/HIVE-24242
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> there are some checks to lock out problematic cases
> For UnionOperator [here|https://github.com/apache/hive/blob/1507d80fd47aad38b87bba4fd58c1427ba89dbbf/ql/src/java/org/apache/hadoop/hive/ql/optimizer/SharedWorkOptimizer.java#L1571]
> This check could prevent the optimization even if the Union is only visible from only 1 of the TS ops.



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