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ASF GitHub Bot commented on ARROW-1425: --------------------------------------- wesm commented on issue #1575: ARROW-1425: [Python] Document Arrow timestamps, and interops w/ other systems URL: https://github.com/apache/arrow/pull/1575#issuecomment-363943606 Well, the scope of ARROW-1425 is to explain to Python users what they need to know to make correct joint use of pandas, Arrow, and Spark. I have push rights on this branch so I can edit directly, maybe tonight or sometime tomorrow ---------------------------------------------------------------- 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)