I understand the problem you want solved (fast search by e.g. second key element), but I don't understand what secondary keys would mean/be...? On Oct 8, 2013 10:48 PM, "Chinmay Patil" <[email protected]> wrote:
> Eduard, > > Details of the issue raised are in this question. > > http://stackoverflow.com/questions/15769837/ > > > On Tue, Oct 8, 2013 at 10:47 PM, Eduard Antonyan < > [email protected]> wrote: > >> 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 >> <[email protected]>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 >>> [email protected] >>> >>> https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help >>> >> >> >
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