pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
b,x,b-x,17,,0.22292354720580898,$blah
e,x,e-x,18,0.459570499176731,0.009397431454871041,$null
a,x,a-x,50,0.07099308600903254,,$blah
c,x,c-x,99,,,$null
d,x,d-x,-71,0.5445623787105787,,$blah