pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
c,n,c-n,96,,0.2745974469175383,$null
c,o,c-o,-31,,0.23126147972818678,$null
c,p,c-p,80,0.21395287710598743,,$blah
c,q,c-q,-1,0.5840794142042252,0.8806566727578236,$blah
c,r,c-r,22,0.0058960835839930725,0.8534479505691046,$null
c,s,c-s,24,,0.38885720324612805,$null
c,t,c-t,19,0.9807219775189232,0.3940202563397047,$null
c,u,c-u,-79,0.6427496480093358,0.18172902651343215,$null
c,v,c-v,16,0.32684580488130854,0.278256615638806,$blah
c,w,c-w,-80,,0.3499603437201839,$null
c,x,c-x,99,,,$null
c,y,c-y,-39,0.6694588446199107,0.9477570222166518,$blah
c,z,c-z,-58,0.9637347441012087,0.11453287137889767,$null