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https://issues.apache.org/jira/browse/HIVE-1529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12898364#action_12898364
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Mayank Lahiri commented on HIVE-1529:
-------------------------------------
Happy to help! It gets a lot easier after the first couple of UD(A)Fs...
For the code conventions, Hive uses the Sun Java code conventions:
http://www.oracle.com/technetwork/java/codeconvtoc-136057.html (the example
usage section is probably the most helpful, and I believe not all of them are
checked by checkstyle.)
> Add ANSI SQL covariance aggregate functions: covar_pop and covar_samp.
> ----------------------------------------------------------------------
>
> Key: HIVE-1529
> URL: https://issues.apache.org/jira/browse/HIVE-1529
> Project: Hadoop Hive
> Issue Type: New Feature
> Components: Query Processor
> Affects Versions: 0.7.0
> Reporter: Pierre Huyn
> Assignee: Pierre Huyn
> Fix For: 0.7.0
>
> Attachments: HIVE-1529.1.patch
>
> Original Estimate: 96h
> Remaining Estimate: 96h
>
> Create new built-in aggregate functions covar_pop and covar_samp, functions
> commonly used in statistical data analyses.
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