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https://issues.apache.org/jira/browse/HIVE-2206?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yin Huai updated HIVE-2206:
---------------------------
Attachment: HIVE-2206.4.patch.txt
All of unit test cases are passed, except TestParse_groupby1,
TestParse_groupby2, TestParse_groupby3 and TestParse_groupby5. Because I made
some changes in method "genGroupByPlanReduceSinkOperator" of class
"SemanticAnalyzer", so results of these four cases should be updated. However,
I found that when these four cases are tested individually, the results differ
from the results when these four cases are tested with all other cases (when I
used "ant clean package test tar -logfile ant.log"). Hive-trunk I checked out
from svn also has this issue. Is it a bug or did I miss anything?
This patch does not contain updates on the results of cases TestParse_groupby1,
TestParse_groupby2, TestParse_groupby3 and TestParse_groupby5.
> 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-2206.1.patch.txt, HIVE-2206.2.patch.txt,
> HIVE-2206.3.patch.txt, HIVE-2206.4.patch.txt, Queries,
> YSmartPatchForHive.patch, testQueries.q
>
>
> reference:
> http://www.cse.ohio-state.edu/hpcs/WWW/HTML/publications/papers/TR-11-7.pdf
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