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https://issues.apache.org/jira/browse/ARROW-3738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16683886#comment-16683886
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Wes McKinney commented on ARROW-3738:
-------------------------------------
Those sound like the right ones.
date64 does not support granularity beyond the resolution of a day. The values
are supposed to be a multiple of 86400000. Some things use this
millisecond-based representation of calendar dates
A timestamp considers intraday point in time
> [C++] Add CSV conversion option to parse ISO8601-like timestamp strings
> -----------------------------------------------------------------------
>
> Key: ARROW-3738
> URL: https://issues.apache.org/jira/browse/ARROW-3738
> Project: Apache Arrow
> Issue Type: New Feature
> Components: C++
> Reporter: Wes McKinney
> Priority: Major
> Labels: csv
>
> See similar functionality in other libraries. I believe pandas has a fast
> path for iso8601
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