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https://issues.apache.org/jira/browse/ARROW-1425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16356182#comment-16356182
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ASF GitHub Bot commented on ARROW-1425:
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wesm commented on a change in pull request #1575: ARROW-1425 [Doc] Document
Arrow timestamps, and interops w/ other systems
URL: https://github.com/apache/arrow/pull/1575#discussion_r166779301
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File path: python/doc/source/timestamps.rst
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@@ -0,0 +1,433 @@
+All About Timestamps (work in progress)
Review comment:
This is a big document. I'd like to see if we can make this about 50% as
long or less. I will review in more detail as soon as I can and make some
comments to help
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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
> 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]
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