[Geocoding] Does Nominatim need all OSM data to be efficient ?

[datendelphin]

Hi

I think you should include relations as well. Most boundary related
things are stored in relations.

Also, country codes need to be imported separately, like described here:
http://wiki.openstreetmap.org/wiki/Nominatim/Installation#Add_special_phrases

datendelphin

On 02/04/12 14:28, Charles DESNEUF wrote:
> Hi all !
> I tried to install my own Nominatim server and I have some issues with
> the responses it returns. I need to run a reverse geocoding service
> which is able to return information such as country code, state/region
> and locality(city, town,...) but nothing more specific.
> I have created a new osm file using osmosis, from last-week planet
> file, with a the tag-filter option to get only elements(nodes and
> ways) with tags boundary, border_type and place and imported it using
> Nominatim setup script.
> While I was running some tests, I noticed some errors in Nominatim
> response(Moscou with US country code, bad state in Rennes, France(Pays
> de la Loire instead of Bretagne, ...). 
> Of course, the Nominatim instance running on Poldi returns valid
> information.
> Does Nominatim need all OSM data (streets, ...) to be efficient or did
> I miss something (a tag ?) ?
>
> Thank you in advance for your help.
>
> Charles
>
>
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