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https://issues.apache.org/jira/browse/ARROW-14108?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rok Mihevc reassigned ARROW-14108:
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    Assignee: Rok Mihevc

> [C++] interval_between(timestamptz, timestamptz) -> interval kernel
> -------------------------------------------------------------------
>
>                 Key: ARROW-14108
>                 URL: https://issues.apache.org/jira/browse/ARROW-14108
>             Project: Apache Arrow
>          Issue Type: Sub-task
>          Components: C++
>            Reporter: Weston Pace
>            Assignee: Rok Mihevc
>            Priority: Major
>
> Given two timestamps that each have time zones this function should return an 
> interval from the first timestamp to the second timestamp according to the 
> following rules (postgres rules):
> * 1 day is 24 physical hours (which may not exactly equal 1 calendar day).
> * Intervals returned will never contain a months/years field
> Examples:
> interval_between('2021-03-14 00:00:00 America/Denver', '2021-03-15 00:00:00 
> America/Denver') => { "hours": 23 }
> interval_between('2021-03-14 00:00:00 UTC', '2021-03-15 00:00:00 UTC') => { 
> "days": 1}
> interval_between('2021-03-14 00:00:00 UTC', '2020-03-14 00:00:00 UTC') => { 
> "days": 365}
> If the first timestamp is larger than the second timestamp then the interval 
> will be negative.



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