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From "Aihua Xu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-10555) Improve windowing function to support additional range formats
Date Thu, 07 May 2015 21:23:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-10555?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aihua Xu updated HIVE-10555:
----------------------------
    Summary: Improve windowing function to support additional range formats  (was: Windowing
function to support additional ranges)

> Improve windowing function to support additional range formats
> --------------------------------------------------------------
>
>                 Key: HIVE-10555
>                 URL: https://issues.apache.org/jira/browse/HIVE-10555
>             Project: Hive
>          Issue Type: Improvement
>          Components: PTF-Windowing
>    Affects Versions: 1.3.0
>            Reporter: Aihua Xu
>            Assignee: Aihua Xu
>
> Currently windowing function only supports the formats of {{x preceding and current}},
{{x preceding and y following}}, {{current and y following}}. 
> Windowing of {{x preceding and y preceding}} and {{x following and y following}} doesn't
work properly.
> The following functions should be supported.
> First_value(), last_value(), sum(), avg() , count(), min(), max() 



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