[OSM-dev] Using NULL values in mapnik / postgres DB

[Raphaël Jacquot]

Artem Pavlenko wrote:
> Here are some examples of invalid ways (geometrically) :
> 
> 1.  http://artem.dev.openstreetmap.org/files/notsimple_way.png  
>    osm2pgsql actually outputs three LINESTRINGS from this way but one is 
> self-tangent (see example 3)
> 
> 2.  http://artem.dev.openstreetmap.org/files/notsimple_way-2.png  - 
> self-intersecting way.
> 
> 3. http://artem.dev.openstreetmap.org/files/notsimple_way-3.png - 
> self-tangent. Only start and end points can match!!!

I talked about those some time ago and was rebuffed as "heretic" or 
something.
interesting to see the same idea comes from someone else these days...