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https://issues.apache.org/jira/browse/HIVE-10555?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aihua Xu updated HIVE-10555:
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Summary: Improve windowing spec of range based windowing to support
additional range formats (was: Improve windowing function to support
additional range formats)
> Improve windowing spec of range based windowing 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
> Fix For: 1.3.0
>
>
> 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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