pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
a,i,a-i,55,,0.3794554417576478,$null
a,n,a-n,-77,,0.62744604170309,$null
a,o,a-o,-2,0.9961213802400968,,$null
a,q,a-q,-100,0.9538159275210801,0.7619621990520646,$null
a,r,a-r,60,0.6389494948660052,,$null
a,s,a-s,53,0.3241560570046731,0.8787218778231842,$null
a,t,a-t,-86,,,$null
a,u,a-u,-68,,0.2650566289400591,$null
a,w,a-w,12,,0.33808556214745533,$null