[
https://issues.apache.org/jira/browse/ARROW-12147?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Joris Van den Bossche updated ARROW-12147:
------------------------------------------
Labels: timezone (was: )
> TimestampTZ functions
> ---------------------
>
> Key: ARROW-12147
> URL: https://issues.apache.org/jira/browse/ARROW-12147
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++ - Gandiva
> Reporter: Yuan Zhou
> Priority: Major
> Labels: timezone
>
> hi arrow developers,
> Gandiva supports timestamp related functions already - but it looks like UTC
> only. It would be nice to support TimestampTZ(timestamp with timezone) also.
> Pass timestamp w/ timezone to those functions will return wrong result(should
> consider the timezone offset)
> [https://github.com/apache/arrow/blob/master/cpp/src/gandiva/precompiled/time.cc#L41]
> I guess we could provide a helper func like below to convert to timestamp w/
> UTC first, then all existing functions should be working correctly.
> {{_ConvertTIMESTAMP(timestamp, timezone)_}}
> A better way may require re-implement those functions by considering the zone
> offset when doing calculating, but this may make the code looks complicated.
> Note, castTIMESTAMP_utf8 supports creating timestamp with timezone already.
> [https://github.com/apache/arrow/blob/master/cpp/src/gandiva/precompiled/time.cc#L618-L743]
>
> thanks, -yuan
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
