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From "Prasanth Jayachandran (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-11171) Join reordering algorithm might introduce projects between joins
Date Mon, 10 Aug 2015 19:38:45 GMT

     [ https://issues.apache.org/jira/browse/HIVE-11171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Prasanth Jayachandran updated HIVE-11171:
-----------------------------------------
    Attachment: HIVE-11171.branch-1.patch

Some spark qtest changes I was able to regenerate on branch-1 (it matches with the origin
master patch). Rest of the tests I was not able to repro. Possibly from different jira.

> Join reordering algorithm might introduce projects between joins
> ----------------------------------------------------------------
>
>                 Key: HIVE-11171
>                 URL: https://issues.apache.org/jira/browse/HIVE-11171
>             Project: Hive
>          Issue Type: Bug
>          Components: CBO
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>             Fix For: 1.3.0, 2.0.0, 1.2.2
>
>         Attachments: HIVE-11171.01.patch, HIVE-11171.02.patch, HIVE-11171.03.patch, HIVE-11171.5.patch,
HIVE-11171.branch-1.patch, HIVE-11171.branch-1.patch, HIVE-11171.patch, HIVE-11171.patch
>
>
> Join reordering algorithm might introduce projects between joins which causes multijoin
optimization in SemanticAnalyzer to not kick in.



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