I thought I should open all of the issues for tracking even if I don't
implement all of them right away?

On Thu, Oct 3, 2019 at 5:46 PM Antoine Pitrou <anto...@python.org> wrote:

>
> Le 04/10/2019 à 00:18, John Muehlhausen a écrit :
> > I need to create two (or more) issues for
> >   custom_metadata in Footer ...
> >
> https://lists.apache.org/thread.html/c3b3d1456b7062a435f6795c0308ccb7c8fe55c818cfed2cf55f76c5@%3Cdev.arrow.apache.org%3E
> >
> > and
> >   memory map based on fd ...
> >
> https://lists.apache.org/thread.html/83373ab00f552ee8afd2bac2b2721468b3f28fe283490e379998453a@%3Cdev.arrow.apache.org%3E
> >
> > For the first one, is this five separate JIRA issues?
> > - [Format] add a custom_metadata:[KeyValue] field to the Footer table in
> > File.fbs
> > - [C++] access File Footer custom_metadata
> > - [Python] access File Footer custom_metadata
> > - [JS] access File Footer custom_metadata
> > - [Java] access File Footer custom_metadata
>
> One JIRA per independent implementation, at least.  Python and C++ can
> be in the same issue, since PyArrow is a set of wrappers around the C++
> implementation.
>
> > For the second, is it four? (One per language?)
> > - [C++] retrieve fd of open memory mapped file and Open() memory mapped
> > file by fd
>
> Same.  But why do you want to open this issue for every language?  Do
> you really need this in all implementations?
>
> Regards
>
> Antoine.
>

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