table comparison

I would like to compare the columns of two tables one by one (column1 vs colum1(right), etc). I know, there is a node called Table difference finder, but I would like to do it a bit differently.

I created a loop where the relevant columns are filtered and the comparison made, but I cannot rid of the additional columns created during the iterations.

If there is a way to do that I would appreciate some help.

compare.knwf