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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-2206.2.patch.txt
there are some failures in TestCliDriver. Some failures seems that the output
misses some lines when using keyword "explain". Other failures are related to
queries with index, e.g. index_quth.q. When I tested query index_quth.q
manually, there were two errors. One was "java.lang.ClassNotFoundException:
org.apache.derby.jdbc.EmbeddedDriver" and another one was
"java.lang.NoClassDefFoundError: javaewah/EWAHCompressedBitmap".
These errors seems irrelevance to changes I made, but there should be some
thing wrong...
@Yongqiang: Can you have a look at my patch and give me some suggestions on how
to fix it? Thanks
> 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, 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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