[datatable-help] Fail to add new columns within a function

[Arunkumar Srinivasan]

Hi Huashan,
Great reproducible example! Would you mind filing a bug report here (https://r-forge.r-project.org/tracker/?func=browse&group_id=240&atid=975)?
Thank you,
Arun


On Saturday, December 14, 2013 at 2:30 AM, Huashan Chen wrote:

> I just found out that when the column quota are reached, adding new columns
> within a function will fail.
> 
> Blow are the testing code:
> 
> testF2=function(x){ 
> add_var<-function(varname){
> x[, `:=`(eval(substitute(varname)), 1), with=F] 
> }
> sapply(paste0('a', 1:101), add_var)
> }
> 
> dd=data.table(a=1:3)
> truelength(dd)
> testF2(dd)
> dim(dd) # only 100 columns
> 
> dd[, new:=3]
> dim(dd) # adding new column outside a function is OK.
> 
> 
> 
> --
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