pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
d,i,d-i,42,,0.40642812467051925,$null
d,r,d-r,44,,0.7644434453261942,$null
d,t,d-t,45,0.6096309122451303,0.7627371043547087,$null
d,a,d-a,48,0.3119572443946952,0.37530695942531844,$null
d,v,d-v,76,,0.2881048895936893,$null