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From "Mayank Lahiri (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1529) Add ANSI SQL covariance aggregate functions: covar_pop and covar_samp.
Date Fri, 13 Aug 2010 18:52:17 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12898364#action_12898364

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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