"Tzahi Fadida" <tzahi_ml@xxxxxxxxxxxxx> writes: > The output of the full disjunctions FD(A,B,C): > FD > X Y Z > a | b | c > a | b | d > This output cannot be generated using standard SQL statements. Does anybody care? Your example looks to me like nothing but a poorly designed schema. You should show a more compelling use-case if you want people to take an interest. regards, tom lane