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Posted to issues@hive.apache.org by "Aihua Xu (JIRA)" <ji...@apache.org> on 2015/06/02 17:24:17 UTC

[jira] [Assigned] (HIVE-10142) Calculating formula based on difference between each row's value and current row's in Windowing function

     [ https://issues.apache.org/jira/browse/HIVE-10142?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aihua Xu reassigned HIVE-10142:
-------------------------------

    Assignee: Aihua Xu

> Calculating formula based on difference between each row's value and current row's in Windowing function
> --------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-10142
>                 URL: https://issues.apache.org/jira/browse/HIVE-10142
>             Project: Hive
>          Issue Type: New Feature
>          Components: PTF-Windowing
>    Affects Versions: 1.0.0
>            Reporter: Yi Zhang
>            Assignee: Aihua Xu
>
> For analytics with windowing function, the calculation formula sometimes needs to perform over each row's value against current tow's value. The decay value is a good example, such as sums of value with a decay function based on difference of timestamp between each row and current row.



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