[jira] [Created] (ARROW-14825) [C++] Temporal component extraction function for extracting epiyear

["Nicola Crane (Jira)" <ji...@apache.org>]

Nicola Crane created ARROW-14825:
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             Summary: [C++] Temporal component extraction function for extracting epiyear
                 Key: ARROW-14825
                 URL: https://issues.apache.org/jira/browse/ARROW-14825
             Project: Apache Arrow
          Issue Type: New Feature
          Components: C++
            Reporter: Nicola Crane


We currently support {{epi_week()}} via the {{us_week}} kernel.  Can we support {{epi_year()}} too?

epiyear in lubridate:
https://github.com/tidyverse/lubridate/blob/10731d1876f8cb902f01f8edb2810a09ce5784a4/R/accessors-year.r#L48-L69

I think this might be somewhat similar to MySQL's {{yearweek}}.  It doesn't seem to be implemented universally, e.g. I don't think it's a thing in Postgres

If this isn't something desirable to implement at the C++ level, it's still possible to implement at the R level after a number of other temporal-related functions are implemented.



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