pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
d,c,d-c,44,0.7826353463610196,0.06895673651964052,$blah
e,c,e-c,49,,0.4700103949603517,$null
g,c,g-c,50,0.5616833815697281,0.35359807963376766,$blah
f,c,f-c,55,,0.6777644586233594,$null
a,c,a-c,83,,,$null