pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
f,p,f-p,64,,,$null
e,p,e-p,26,0.1262462698093887,0.33199470393136377,$null
c,p,c-p,80,0.21395287710598743,,$blah
g,p,g-p,46,0.40442288450523434,0.11517337266379823,$null
h,p,h-p,-94,0.4148969058190054,0.23577807386343264,$null
d,p,d-p,-97,0.5740642196263323,0.34070593256029236,$blah
b,p,b-p,-73,0.7424166839809987,,$blah
a,p,a-p,74,0.7508777995916097,,$blah