[jira] Updated: (HIVE-1549) Add ANSI SQL correlation aggregate function CORR(X,Y).

["Pierre Huyn (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-1549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pierre Huyn updated HIVE-1549:
------------------------------

    Attachment: HIVE-1549.1.patch

This CORR  UDAF is implemented using a one-pass stable algorithm, very similar to the implementation of the COVAR_POP UPAF. This code release is now ready for review.

> Add ANSI SQL correlation aggregate function CORR(X,Y).
> ------------------------------------------------------
>
>                 Key: HIVE-1549
>                 URL: https://issues.apache.org/jira/browse/HIVE-1549
>             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-1549.1.patch
>
>   Original Estimate: 120h
>  Remaining Estimate: 120h
>
> Aggregate function that computes the Pearson's coefficient of correlation between a set of number pairs.

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