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From "John Sichi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1387) Make PERCENTILE work with double data type
Date Sat, 26 Jun 2010 00:03:50 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12882775#action_12882775
] 

John Sichi commented on HIVE-1387:
----------------------------------

Speaking of wiki...can you also update this page with descriptions for percentile, percentile_approx,
variance, and histogram_numeric?  And while you are in there, might as well cover stddev since
that has always been missing too.  Note that variance and stddev both have _pop and _samp
versions.

http://wiki.apache.org/hadoop/Hive/LanguageManual/UDF

Just one-line descriptions are fine here...users can execute DESCRIBE to get the details.


> Make PERCENTILE work with double data type
> ------------------------------------------
>
>                 Key: HIVE-1387
>                 URL: https://issues.apache.org/jira/browse/HIVE-1387
>             Project: Hadoop Hive
>          Issue Type: Improvement
>    Affects Versions: 0.6.0
>            Reporter: Vaibhav Aggarwal
>            Assignee: Mayank Lahiri
>             Fix For: 0.6.0
>
>         Attachments: HIVE-1387.2.patch, HIVE-1387.3.patch, HIVE-1387.4.patch, median_approx_quality.png,
patch-1387-1.patch
>
>
> The PERCENTILE UDAF does not work with double datatype.

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