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From "Carl Steinbach (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-2206) add a new optimizer for query correlation discovery and optimization
Date Mon, 17 Sep 2012 02:05:08 GMT

     [ https://issues.apache.org/jira/browse/HIVE-2206?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Carl Steinbach updated HIVE-2206:
---------------------------------

    Status: Open  (was: Patch Available)

Please explain what is preventing us from enabling this feature by default, e.g. in which
cases is it expected not to work, and what are the failure scenarios? 

Based on the current test coverage (not much) I can't tell if it's actually possible to use
this feature in its current state.
                
> add a new optimizer for query correlation discovery and optimization
> --------------------------------------------------------------------
>
>                 Key: HIVE-2206
>                 URL: https://issues.apache.org/jira/browse/HIVE-2206
>             Project: Hive
>          Issue Type: New Feature
>            Reporter: He Yongqiang
>            Assignee: Yin Huai
>         Attachments: HIVE-2206.10-r1384442.patch.txt, HIVE-2206.11-r1385084.patch.txt,
HIVE-2206.1.patch.txt, HIVE-2206.2.patch.txt, HIVE-2206.3.patch.txt, HIVE-2206.4.patch.txt,
HIVE-2206.5-1.patch.txt, HIVE-2206.5.patch.txt, HIVE-2206.6.patch.txt, HIVE-2206.7.patch.txt,
HIVE-2206.8.r1224646.patch.txt, HIVE-2206.8-r1237253.patch.txt, testQueries.2.q, YSmartPatchForHive.patch
>
>
> reference:
> http://www.cse.ohio-state.edu/hpcs/WWW/HTML/publications/papers/TR-11-7.pdf

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