pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
e,x,e-x,18,0.459570499176731,0.009397431454871041,$null
d,x,d-x,-71,0.5445623787105787,,$blah
f,x,f-x,59,0.6330767243010155,0.3809043988185208,$blah
g,x,g-x,65,0.8552933714560903,0.3844824765824649,$null