pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
c,h,c-h,-77,0.7511381375407322,,$null
e,i,e-i,-77,,,$blah
g,b,g-b,-77,,,$null
a,n,a-n,-77,,0.62744604170309,$null