pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
d,g,d-g,15,0.46470846660323173,0.6681884704454936,$blah
g,y,g-y,15,,,$null
g,z,g-z,15,0.10350187727039162,0.08432913202456382,$null
h,o,h-o,15,0.9053062089782412,0.09171356965909339,$blah