[OSM-talk] area_with_holes as alternative to multipolygon relation

[Robert Vollmert]

On Mar 10, 2008, at 22:43, Jon Burgess wrote:
> The original multipolygons created by the conversion above all had the
> same tags and no defined roles.

Does osm2pgsql really require the same tags on all ways? The comments  
in the code seem to say it's collecting tags from all member ways, in  
which case removing tags from the inner ways shouldn't break things.

> As I mentioned before, I am not against change. I'd be really happy to
> see this rationalisation occur. It will eventually result in a cleaner
> data model and less code in osm2pgsql. The transition period does risk
> breaking what we have already and this is what I'm trying to avoid.

I should confess at this point that before the discussion resumed  
this afternoon I "fixed" multipolygon relations with id < 1000. So my  
question above will be answered soon enough...

Would it be difficult to handle relations differently based on  
whether or not there are members with non-empty roles?

Cheers
Robert