pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
a,k,a-k,-32,0.913136124185545,0.3146778807984779,$blah
b,k,b-k,-48,0.6697259747698292,0.3957858467912545,$blah
d,k,d-k,77,0.24330516387675716,0.47326048875952476,$blah
g,k,g-k,24,,0.7549431436683707,$null