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From "Ashutosh Chauhan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-896) Add LEAD/LAG/FIRST/LAST analytical windowing functions to Hive.
Date Fri, 01 Feb 2013 03:09:14 GMT

    [ https://issues.apache.org/jira/browse/HIVE-896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13568420#comment-13568420
] 

Ashutosh Chauhan commented on HIVE-896:
---------------------------------------

Created phabricator review entry to ease review : https://reviews.facebook.net/D8331
                
> Add LEAD/LAG/FIRST/LAST analytical windowing functions to Hive.
> ---------------------------------------------------------------
>
>                 Key: HIVE-896
>                 URL: https://issues.apache.org/jira/browse/HIVE-896
>             Project: Hive
>          Issue Type: New Feature
>          Components: OLAP, UDF
>            Reporter: Amr Awadallah
>            Priority: Minor
>         Attachments: DataStructs.pdf, HIVE-896.1.patch.txt, Hive-896.2.patch.txt
>
>
> Windowing functions are very useful for click stream processing and similar time-series/sliding-window
analytics.
> More details at:
> http://download-west.oracle.com/docs/cd/B13789_01/server.101/b10736/analysis.htm#i1006709
> http://download-west.oracle.com/docs/cd/B13789_01/server.101/b10736/analysis.htm#i1007059
> http://download-west.oracle.com/docs/cd/B13789_01/server.101/b10736/analysis.htm#i1007032
> -- amr

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