Adrian von Bidder wrote: > Hi, > > Is there any way to do tree traversal with only one SQL query (no > procedure/function)? > > CREATE TABLE foo ( > node INTEGER, > parent INTEGER REFERENCES foo(node) > ); > > Ideally the output would be a depth-first tree traversal starting at root > (marked by parent == node, for example.) > > Obviously, I can do this with "normal" programming and loops, but it bugged > me a while if its at all possible doing this in one query. Have a look at contrib/ltree ;) -- Alban Hertroys alban@xxxxxxxxxxxxxxxxx magproductions b.v. T: ++31(0)534346874 F: ++31(0)534346876 M: I: www.magproductions.nl A: Postbus 416 7500 AK Enschede // Integrate Your World //