[datatable-help] Secondary keys

[Eduard Antonyan]

I don't think I understand what secondary keys are (supposed to be), can
someone who knows please elaborate?


On Sun, Oct 6, 2013 at 12:17 AM, Chinmay Patil <chinmay.patil at gmail.com>wrote:

> Hi devs,
>
> I was wondering if there are any plans to implement this feature.
>
>
> https://r-forge.r-project.org/tracker/index.php?func=detail&aid=1007&group_id=240&atid=978
>
> Alternatively, is there a way to refer to key of the data.table object in
> "J" function used for subsetting?
>
> _______________________________________________
> datatable-help mailing list
> datatable-help at lists.r-forge.r-project.org
> https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.r-forge.r-project.org/pipermail/datatable-help/attachments/20131008/4386e2fa/attachment.html>