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https://issues.apache.org/jira/browse/ARROW-617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15926482#comment-15926482
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Steven Phillips commented on ARROW-617:
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I personally strongly favor simplicity, so if it were up to me, I would choose
to go with a single physical type, even though that means we would have to
resolve compatibility issues with existing code.
I would actually go a step further and ask if we really need all 4
(nano/micro/milli/seconds). Couldn't we just store nanoseconds in all cases?
Are we concerned about the cost of conversion?
> 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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