[OSM-talk] Skip geographical (redundant) address tags

[Vincent Pottier]

Le 03/05/2011 16:54, Pieren a écrit :
> On Tue, May 3, 2011 at 3:50 PM, Felix Hartmann 
> <extremecarver at gmail.com <mailto:extremecarver at gmail.com>> wrote:
>
>     Cause boundaries really are not ment for deducting information
>     onto what's inside.
>
>
> I don't know what to say against that....
>
> Pieren
>
Maybe boundaries are in the database for the renderers only ;-)

Seriously... I can reply.

> Don't forget the fundamentals : OSM is a geospatial database 
> containing geospatial data. If you are a consumer, use a database 
> server with geospatial functions like postGIS (otherwise we don't need 
> coordinates in nodes). It's true that it requires some skills and 
> learning curves and lazy programmers can always expect that 
> contributors will do the job for them...

I'm using boundaries for computing localisation of things.
I never have studied compuning. But i'm able to manage a postGIS 
database, to write queries with spatial functions with jointures, and to 
get some good results. It is not so hard.
And somebody making requests with where clauses such as WHERE 
"addr:country" IS IN (...) is probably able to make a jointure.

IMHO addr:stuff may be necessary in the way that addr:stuff is not 
exactly geolocalisation and can differ from ST_WITHIN results. But it is 
optionnal for only such cases.
--
FrViPofm
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