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https://issues.apache.org/jira/browse/ARROW-13247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17373374#comment-17373374
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Antoine Pitrou edited comment on ARROW-13247 at 7/2/21, 9:25 AM:
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I'm opposed to adding vanity kernels just because people don't want to write
two lines of logic.
was (Author: pitrou):
I'm oppose to adding vanity kernels just because people don't want to write two
lines of logic.
> [C++] Kernel to convert timestamp with timezone to another timezone
> (metadata-only change)
> ------------------------------------------------------------------------------------------
>
> Key: ARROW-13247
> URL: https://issues.apache.org/jira/browse/ARROW-13247
> Project: Apache Arrow
> Issue Type: Improvement
> Reporter: Joris Van den Bossche
> Priority: Major
> Labels: timestamp, timezone
>
> Related to ARROW-13033, but assuming you already have a tz-aware "timestamp
> with timezone" type, and you want to change it to have another timezone.
> In practice, this is a trivial, metadata-only change since in both cases the
> actual values are stored in UTC, and so it's only changing the tz
> parametrization of the timestamp type. But, for convenience, I think it would
> still be useful to have it as an actual kernel to easily integrate this
> operation in this framework.
> References:
> [tz_convert|https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DatetimeIndex.tz_convert.html]
> in pandas, or
> [with_tz|https://lubridate.tidyverse.org/reference/with_tz.html] in R's
> lubridate package,{{withZone}} in Joda or
> [withZoneSameInstant|https://docs.oracle.com/javase/8/docs/api/java/time/ZonedDateTime.html#withZoneSameInstant-java.time.ZoneId-]
> in Java
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