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ASF GitHub Bot commented on ARROW-1425: --------------------------------------- icexelloss commented on a change in pull request #1575: ARROW-1425: [Python] Document Arrow timestamps, and interops w/ other systems URL: https://github.com/apache/arrow/pull/1575#discussion_r166783544 ########## File path: python/doc/source/timestamps.rst ########## @@ -0,0 +1,433 @@ +All About Timestamps (work in progress) Review comment: It is a big document. It's pretty long right now because there are quite bit of concepts to clarify, about 50% of the doc is about concepts and the other half is about Arrow <-> Spark. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org > [Python] Document semantic differences between Spark timestamps and Arrow > timestamps > ------------------------------------------------------------------------------------ > > Key: ARROW-1425 > URL: https://issues.apache.org/jira/browse/ARROW-1425 > Project: Apache Arrow > Issue Type: Improvement > Components: Python > Reporter: Wes McKinney > Assignee: Heimir Thor Sverrisson > Priority: Major > Labels: pull-request-available > Fix For: 0.9.0 > > > The way that Spark treats non-timezone-aware timestamps as session local can > be problematic when using pyarrow which may view the data coming from > toPandas() as time zone naive (but with fields as though it were UTC, not > session local). We should document carefully how to properly handle the data > coming from Spark to avoid problems. > cc [~bryanc] [~holdenkarau] -- This message was sent by Atlassian JIRA (v7.6.3#76005)