pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
a,n,a-n,-77,,0.62744604170309,$null
b,n,b-n,-60,0.43818457300770985,0.9872330636315043,$null
c,n,c-n,96,,0.2745974469175383,$null
d,n,d-n,-75,0.8326283633270679,0.014148367256063832,$null
e,n,e-n,16,0.8696016832340685,0.23880554416624933,$null
f,n,f-n,-45,0.44338308606070165,0.6856802654812854,$blah
g,n,g-n,27,0.7470141234297678,0.23011071607665967,$blah
h,n,h-n,41,0.7114009771190007,,$blah