On Fri, Oct 31, 2008 at 12:55 PM, Stefan de Konink <[EMAIL PROTECTED]> wrote: > Andy Allan wrote: >> No, hang on, that would be daft. I'd be better off making subtrees >> limited to about 1000 nodes or thereabouts, to improve the efficiency >> of partial checkouts. So then I would have sensibly sized subtrees >> (lets call them 'ways') and the master super-tree (lets call it a >> relation). > > You miss the point of rewriting ways into relations. It will reduce the > code complexity and database complexity of all operations significantly.
quick question: if your schema used ordered relations instead of ways, do you have an unordered relation type as well? > The amount of tables is reduced, that means the amount of joins are > reduced. And the indices required for database searches are now more > efficient. Queries therefore get shorter, no need for a specific way > renderer. except when your relation doesn't relate linear features. cheers, matt _______________________________________________ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
