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https://issues.apache.org/jira/browse/ARROW-617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15927328#comment-15927328
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Wes McKinney commented on ARROW-617:
------------------------------------

PR: https://github.com/apache/arrow/pull/385/files

> Time type is not specified clearly
> ----------------------------------
>
>                 Key: ARROW-617
>                 URL: https://issues.apache.org/jira/browse/ARROW-617
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Format
>            Reporter: Julien Le Dem
>
> 2 options:
> - Use 64 bits for microseconds and nanoseconds, 32 bits for other units
> - Use 64 bits for everything
> The latter is simpler to implement, the former saves space.



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