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https://issues.apache.org/jira/browse/HIVE-896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13619850#comment-13619850
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Brock Noland commented on HIVE-896:
-----------------------------------
+1
Nice work guys! Sorry I have been OOO so I haven't been able to help lately.
> 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
> Assignee: Harish Butani
> Priority: Minor
> Fix For: 0.11.0
>
> Attachments: DataStructs.pdf, HIVE-896.1.patch.txt,
> Hive-896.2.patch.txt, hive-896.3.patch.txt, HIVE-896.4.patch,
> HIVE-896.5.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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