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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-7111) Extend join transitivity PPD to non-column expressions
Date Sat, 08 Nov 2014 00:52:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-7111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14203055#comment-14203055
] 

Lefty Leverenz commented on HIVE-7111:
--------------------------------------

Does this need documentation?  If it does, perhaps it belongs here:

* [Hive Outer Join Behavior | https://cwiki.apache.org/confluence/display/Hive/OuterJoinBehavior]

But it doesn't seem related to any of this:

* [Join Optimization | https://cwiki.apache.org/confluence/display/Hive/LanguageManual+JoinOptimization]

> Extend join transitivity PPD to non-column expressions
> ------------------------------------------------------
>
>                 Key: HIVE-7111
>                 URL: https://issues.apache.org/jira/browse/HIVE-7111
>             Project: Hive
>          Issue Type: Task
>          Components: Query Processor
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Minor
>             Fix For: 0.15.0
>
>         Attachments: HIVE-7111.1.patch.txt, HIVE-7111.2.patch.txt, HIVE-7111.2.patch.txt,
HIVE-7111.3.patch.txt, HIVE-7111.4.patch.txt
>
>
> Join transitive in PPD only supports column expressions, but it's possible to extend
this to generic expressions.



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