pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
f,s,f-s,69,0.866447888506801,0.7899846642347539,$null
e,n,e-n,16,0.8696016832340685,0.23880554416624933,$null
a,q,a-q,-100,0.9538159275210801,0.7619621990520646,$null
c,z,c-z,-58,0.9637347441012087,0.11453287137889767,$null
c,t,c-t,19,0.9807219775189232,0.3940202563397047,$null
a,o,a-o,-2,0.9961213802400968,,$null
h,h,h-h,-43,0.9999766211030285,0.10114076366789415,$null