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From "Ashutosh Chauhan (JIRA)" <>
Subject [jira] [Commented] (HIVE-7111) Extend join transitivity PPD to non-column expressions
Date Tue, 28 Oct 2014 21:47:34 GMT


Ashutosh Chauhan commented on HIVE-7111:

Also, I am not sure about usefulness of new test {{auto_join33.q}} Looking at that test, I
thought whats in it can already be achieved. So, I took that test case and ran it on top of
trunk and unsurprisingly it generated same plan. So, this patch doesnt make a difference for
that test. So, I am little unclear what this patch is suppose to enable. It will be good to
have a test case which shows we have a better plan which wasn't possible without this patch.

> Extend join transitivity PPD to non-column expressions
> ------------------------------------------------------
>                 Key: HIVE-7111
>                 URL:
>             Project: Hive
>          Issue Type: Task
>          Components: Query Processor
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Minor
>         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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