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https://issues.apache.org/jira/browse/HIVE-896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13559154#comment-13559154
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Harish Butani commented on HIVE-896:
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Alan,
Thanks for spending the time.
Yes your e.g. is going to fail. There was a bug in the patch we posted.
This was fixed in commit 0eff864d765c91e0bece497e0f007c6cd2cec72f in our repo
on Jan 9th.
I can send you a patch privately or post the updated patch here.
Sorry about this.
> 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: HIVE-896.1.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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