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

[Maarten Deen]

 On Wed, 4 May 2011 08:07:07 +0200, pdorange at mac.com (Pierre-Alain 
 Dorange) wrote:
> Felix Hartmann <extremecarver at gmail.com> wrote:
>
>> Nope, it makes sense all the time. Cause boundaries really are not 
>> ment
>> for deducting information onto what's inside. This really slows down 
>> any
>> kind of processing (much much more than having data duplicated which
>> only takes up a bit more disk space).
>
> Nominatim use them (boundariy relations) efficiently.

 The lookup may be efficient, it is frequently wrong and again dependent 
 of correct and complete admin_levels.
 Currently it places every street where I live (in the Netherlands) in 
 Belgium and does not specify a town with it.
 Looking for "Jacob van Marisring" returns "Jacob van Marisring, België 
 51.32,51.32 14558705 (Residential)". Searching for "Jacob van Marisring, 
 Helden" even returns an error.

 Also note that in the FAQ page of nominatim, the suggestion is done to 
 fix errors by adding addr: or is_in: tags.

 Regards,
 Maarten