pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
b,l,b-l,-20,,,$null
d,l,d-l,-10,0.7028549421857689,0.23053804129850775,$null
f,l,f-l,-1,0.6704862188501712,0.5401924954289701,$null
g,l,g-l,-28,0.5931342503922638,0.6671325587363496,$null