Template recursion error on table struct

[data pulverizer via Digitalmars-d-learn]

I am attempting to create a table struct with generic column 
types using templates. The subTable() member function subsets the 
table, however I am getting a template recursion error. I know 
where the problem is from, I don't know how to resolve it. I am 
modelling it after the matrix example in Ali Çehreli book: 
http://ddili.org/ders/d.en/templates_more.html

import std.stdio;

template ColumnTable(T...){
	struct ColumnTable{
	private:
		typeof(T) data;
		string[] names;
		struct Range{
			size_t begin;
			size_t end;
		}
         // This function is the source of the issue
	auto subTable(Range rowRange, Range columnRange)(){
		auto new_data = data[columnRange.begin .. columnRange.end];
		auto output = ColumnTable!(new_data)(new_data); // This is the 
problem
		string[] new_names = names[columnRange.begin .. 
columnRange.end];
		output.setNames(new_names);
		return output;
	}
	public:
		this(T...)(T args){
			data = args;
			foreach(i, arg; T){
				names ~= args[i].stringof;
			}
		}
		void setNames(string[] names){
			this.names = names;
		}
		void test(){
			writeln(subTable!(Range(0, 2), Range(0, 2))());
		}
	}
}


void main(){
	string[] names = ["tariq", "sharma", "peter", "rakel"];
	double[] salary = [44.5, 32.2, 40.1, 28.1];
	int[] age = [24, 20, 22, 25, 19];
	writeln(ColumnTable!(names, salary, age)(names, salary, age));
}