pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text d,a,d-a,48,0.3119572443946952,0.37530695942531844,$null g,a,g-a,-20,0.426764006260958,0.9535925176191249,$null c,a,c-a,52,0.43456375856464435,,$blah b,a,b-a,5,0.7290758494598506,,$blah