aggr.stdev{,] and aggr.variance{,p} need "abort_on_error" argument. This fixes bug 3257.
aggr.stdev{,] and aggr.variance{,p} need "abort_on_error" argument.
This fixes bug 3257.

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb