pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
e,b,e-b,47,0.040231673144616176,0.518963840987604,$null
f,b,f-b,44,,0.9106169537187105,$null
g,b,g-b,-77,,,$null
h,b,h-b,-28,0.7744647885737355,0.7892269315636647,$blah