pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
e,a,e-a,54,0.0913268866309852,,$blah
f,a,f-a,47,,0.9779444845768627,$null
g,a,g-a,-20,0.426764006260958,0.9535925176191249,$null
h,a,h-a,-90,0.24774372359828423,0.5240685531701745,$blah