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https://issues.apache.org/jira/browse/HIVE-10142?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yi Zhang updated HIVE-10142:
----------------------------
    Summary: Calculating formula based on difference between each row's value 
and current row's in Windowing function  (was: Calculating formula with each 
row's value to current row's value in Windowing function)

> 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
>
> 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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