pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
e,v,e-v,-5,0.43068678785540004,,$null
f,v,f-v,17,0.6433406842054887,,$blah
g,v,g-v,60,0.3161388944905802,0.44220806383628486,$null