I wander what a proper implementation af SETS
in a relational db would look like.
In my app, i need
a) Tree structures
With postgresql i wrote some views,rules
and pg/plsql functions, that work as a
"driver" for the sets.
E.G, i have a single table, with which i implement
I dont know the number or size of sets in advance.
All i want to do is
Imagine we have to cluster people in
"sister" sets, cousin stes, same color sets etc...