pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
e,i,e-i,-77,,,$blah
f,i,f-i,49,0.3810254992724753,,$blah
h,i,h-i,69,,,$null
g,i,g-i,-4,0.41983249376450316,0.3243828920784265,$null
a,i,a-i,55,,0.3794554417576478,$null
d,i,d-i,42,,0.40642812467051925,$null
c,i,c-i,-89,,0.8861369090509815,$null
b,i,b-i,-83,,0.9415961272290894,$null