open database opt

let plz10 = plz feed ten feed product extend[ran: randint(50000)] 
sortby[ran asc] remove[ran] consume

query plz10 feed {p1} plz10 feed {p2} sortmergejoin[PLZ_p1, PLZ_p2] count

query plz10 feed {p1} plz10 feed {p2} hashjoin[PLZ_p1, PLZ_p2, 99997] count

query plz10 feed sortby[Ort asc] count





let plz10_PLZ = plz10 createbtree[PLZ]

query plz10 feed head[50000] {p1} loopjoin[plz10_PLZ plz10 
exactmatch[.PLZ_p1] {p2}] count

query plz10 feed {p1} ten feed {p2} product count

close database