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From "Gunther Hagleitner (JIRA)" <>
Subject [jira] [Updated] (HIVE-8179) Fetch task conversion: Remove some dependencies on AST
Date Wed, 24 Sep 2014 02:39:33 GMT


Gunther Hagleitner updated HIVE-8179:
       Resolution: Fixed
    Fix Version/s: 0.14.0
           Status: Resolved  (was: Patch Available)

Committed to trunk. Thanks [~ashutoshc]!

> Fetch task conversion: Remove some dependencies on AST
> ------------------------------------------------------
>                 Key: HIVE-8179
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Gunther Hagleitner
>            Assignee: Gunther Hagleitner
>             Fix For: 0.14.0
>         Attachments: HIVE-8179.1.patch, HIVE-8179.2.patch, HIVE-8179.3.patch
> fetch task conversion is does some strange things:
> For instance: select * from (select * from x) t, wont get converted even though it's
the exact same operator plan as: select * from x.
> Or: select * from foo will get converted with minimal, but select <list all columns
of foo> from foo won't.
> We also check the AST for group by etc, but then do the same thing in the operator tree
> I'm also wondering why we ship with "moar" as default, but test with "minimal" in the
unit tests.

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