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From "ASF GitHub Bot (Jira)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-24242) Relax safety checks in SharedWorkOptimizer
Date Thu, 08 Oct 2020 21:59:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-24242?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

ASF GitHub Bot updated HIVE-24242:
----------------------------------
    Labels: pull-request-available  (was: )

> Relax safety checks in SharedWorkOptimizer
> ------------------------------------------
>
>                 Key: HIVE-24242
>                 URL: https://issues.apache.org/jira/browse/HIVE-24242
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  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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