Hi Pieren, Am Mittwoch, 13. Juni 2012, 18:42:54 schrieb Pieren: > > negative aspect ... the proposal puts a lot of information into keys and > > theoretically allows for an unlimited set of keys > +1 > But this could be fixed by moving all variables into the value part > (syntax to be defined)
There are quite a few drawbacks of moving all variables into the value part: * the syntax needs to be defined; it needs to be compatible with old values; humans must be able to understand it (not just programmers) * nobody ever used it; a large portion of existing tags needs to be converted * it needs to fit into the 255 byte key/value limit I'm not saying that conditions inside keys is the best invention since sliced bread, I'm just saying that conditions inside the value of one key is not a good idea either. Ultimately this needs to be resolved at a lower level, in the database schema. However, given how slow the database schema evolves, we need an intermediate solution. Eckhart _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
