[OSM-talk] Re: Data types; indexes etc.
Raphaël Jacquot
sxpert at esitcom.org
Thu Apr 27 16:24:29 BST 2006
dblasby at openplans.org wrote:
> As I asked before - why are you storing each point in the database? Why
> dont you store edges (homogeneous lines)? It seems this would make
> your database much more efficient if you did this. But, I dont really
> know what your datamodel is.
the idea is that the user changes the nodes, and the segments are a link
between 2 nodes.
furthermore, multiple segment can use one node (when multiple roads
meet, for example). so, when the user changes the node, we'd have to
look for each segment.
>
> dave
>
>
> ----------------------------------------------------------
> This mail sent through IMP: https://webmail.limegroup.com/
>
> _______________________________________________
> talk mailing list
> talk at openstreetmap.org
> http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
>
More information about the talk
mailing list