pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
e,l,e-l,97,0.41494242355134514,0.00256525935857721,$blah
f,l,f-l,-1,0.6704862188501712,0.5401924954289701,$null
g,l,g-l,-28,0.5931342503922638,0.6671325587363496,$null
h,l,h-l,-6,0.6783068250650924,0.4616799784409892,$blah