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https://issues.apache.org/jira/browse/ARROW-1425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16219844#comment-16219844
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ASF GitHub Bot commented on ARROW-1425:
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wesm commented on issue #1095: ARROW-1425 [Python] Document semantic
differences between Spark and Arrow timestamps
URL: https://github.com/apache/arrow/pull/1095#issuecomment-339527887
@icexelloss @heimir-sverrisson it may make sense to engage in
https://github.com/apache/spark/pull/18664 and at least try to process the
discussion that is going on around time zones. This is some very thorny stuff
and I don't have the bandwidth right this moment to properly engage with this
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> [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
> Labels: pull-request-available
> Fix For: 0.8.0
>
>
> 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]
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