pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
f,k,f-k,-65,0.045346811013382116,0.23480003243132908,$null
g,k,g-k,24,,0.7549431436683707,$null
h,k,h-k,92,0.44892796303334037,0.23916849724551947,$null