[jira] [Updated] (ARROW-13549) [C++] Implement timestamp to date/time cast that extracts value

["David Li (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-13549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Li updated ARROW-13549:
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    Summary: [C++] Implement timestamp to date/time cast that extracts value  (was: [C++] Implement kernel to extract date/time from timestamp)

> [C++] Implement timestamp to date/time cast that extracts value
> ---------------------------------------------------------------
>
>                 Key: ARROW-13549
>                 URL: https://issues.apache.org/jira/browse/ARROW-13549
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: David Li
>            Assignee: David Li
>            Priority: Major
>              Labels: kernel, pull-request-available
>             Fix For: 6.0.0
>
>          Time Spent: 3h 50m
>  Remaining Estimate: 0h
>
> Add a kernel that can extract just the date or the time from a timestamp.
> This should behave like Postgres DATE/CAST(... as TIME), or Pandas Timestamp.date/Timestamp.time.
> Extracting the date appears to be doable with an unsafe cast, but it might be more convenient to have an explicit kernel (and an unsafe cast, at least in the Python bindings, disables all checks, not just the check we care about).



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