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From "Zheng Shao (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-259) Add PERCENTILE aggregate function
Date Fri, 26 Feb 2010 05:42:28 GMT

    [ https://issues.apache.org/jira/browse/HIVE-259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12838718#action_12838718
] 

Zheng Shao commented on HIVE-259:
---------------------------------

Hi Jerome, using ArrayList<Integer> won't cause unnecessary Object creation. We will
just create a single ArrayList<Integer> and use it forever.
Does that make sense?


> Add PERCENTILE aggregate function
> ---------------------------------
>
>                 Key: HIVE-259
>                 URL: https://issues.apache.org/jira/browse/HIVE-259
>             Project: Hadoop Hive
>          Issue Type: New Feature
>          Components: Query Processor
>            Reporter: Venky Iyer
>            Assignee: Jerome Boulon
>         Attachments: HIVE-259-2.patch, HIVE-259.1.patch, HIVE-259.patch, jb2.txt, Percentile.xlsx
>
>
> Compute atleast 25, 50, 75th percentiles

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