Am Samstag, den 04.06.2005, 15:22 -0500 schrieb Bruno Wolff III: > On Sat, Jun 04, 2005 at 21:53:24 +0200, > Joachim Zobel <jzobel@xxxxxxxxxxxxxxx> wrote: > > So WITH will allow recursion so I can walk the graph, right? Does this > > mean I can recursively join until a terminating condition is reached? > > It can be used to compute transitive closures, which I think is what > you are really looking for. There aren't any plans to implement grouping by a user defined equivalence relation? This is the other thing I am missing. But OK, WITH will keep me happy for some time :) Sincerely, Joachim ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to majordomo@xxxxxxxxxxxxxx