On Thu, Jun 3, 2010 at 9:19 AM, John Smith <deltafoxtrot...@gmail.com>wrote:
> On 3 June 2010 16:26, jamesmikedup...@googlemail.com > <jamesmikedup...@googlemail.com> wrote: > > Hi, > > here is a humble suggestion, instead of giving *everything* unique id, > > I didn't actually mean everything in that sense, for example the nodes > on a road don't all need unique IDs nor should they get them, but at > the same time a single node might need 2 unique IDs, one for the > building and one for the business occupying the building. > > At the end, you just translate a lat/lon + tag to a number.... when you can simply request a tag by its lat/lon to an appropriate api. The unique ID already exists, it's the osm_id. Why should we recreate the wheel ? But it's true that the ID is not permanent and cannot really be trusted. URL's in Wikipedia have the same issue. What about trying to improve the persistence of the ID by using a similar mechanism : when an editor sees that a node has been replaced by another node or polygon "with the same meaning (or set of tags)", it could insert a kind of "#REDIRECT" into the removed object redirecting to the new osm_id Pieren
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