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https://issues.apache.org/jira/browse/ARROW-617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15905959#comment-15905959
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Julien Le Dem commented on ARROW-617:
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Currently the java TimeVector supports millis only on 32 bits.
the c++ Time Vector is 64bits.
> 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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