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From "ASF GitHub Bot (Jira)" <j...@apache.org>
Subject [jira] [Work logged] (HIVE-23162) Remove swapping logic to merge joins in AST converter
Date Wed, 17 Jun 2020 00:24:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-23162?focusedWorklogId=446981&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-446981
]

ASF GitHub Bot logged work on HIVE-23162:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 17/Jun/20 00:23
            Start Date: 17/Jun/20 00:23
    Worklog Time Spent: 10m 
      Work Description: github-actions[bot] closed pull request #978:
URL: https://github.com/apache/hive/pull/978


   


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

    Worklog Id:     (was: 446981)
    Time Spent: 0.5h  (was: 20m)

> Remove swapping logic to merge joins in AST converter
> -----------------------------------------------------
>
>                 Key: HIVE-23162
>                 URL: https://issues.apache.org/jira/browse/HIVE-23162
>             Project: Hive
>          Issue Type: Bug
>          Components: CBO
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HIVE-23162.01.patch, HIVE-23162.02.patch, HIVE-23162.03.patch
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> In ASTConverter, there is some logic to invert join inputs so the logic to merge joins
in SemanticAnalyzer kicks in.
> https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/translator/ASTConverter.java#L407
> There is a bug because inputs are swapped but the schema is not.



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