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https://issues.apache.org/jira/browse/HIVE-2299?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13070945#comment-13070945
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Hudson commented on HIVE-2299:
------------------------------
Integrated in Hive-trunk-h0.21 #848 (See
[https://builds.apache.org/job/Hive-trunk-h0.21/848/])
HIVE-2299. Optimize Hive query startup time for multiple partitions
(Vaibhav Aggarwal via cws)
cws : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1150928
Files :
*
/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/CombineHiveInputFormat.java
> Optimize Hive query startup time for multiple partitions
> --------------------------------------------------------
>
> Key: HIVE-2299
> URL: https://issues.apache.org/jira/browse/HIVE-2299
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Vaibhav Aggarwal
> Assignee: Vaibhav Aggarwal
> Fix For: 0.8.0
>
> Attachments: HIVE-2299.patch
>
>
> Added an optimization to the way input splits are computed.
> Reduced an O(n^2) operation to O n operation.
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