On Mon, Mar 28, 2005 at 17:52:21 +0200,
Virgile Beddok <virgile.beddok@igd.fraunhofer.de> wrote:
> Thanks for the help.
> I'll try this for the one-dimensional search.
> For the muti-dimensional one, which tools of postgresql could I use for
> this metric function, or this indexable search, which Bruno mentioned.
> Do they already exist?
> What about using a tree for that? Is there one which could fit to such a
> "nearest neighbour search", or do I have to implement it myself...
You could look at boxes or cubes. You haven't said enough about your
multidimensional problem to give specific answers.