[Geocoding] Nominatim CONST_Osm2pgsql_Flatnode_File parameter

Frederik Ramm frederik at remote.org
Thu Aug 11 14:31:04 UTC 2016


Hi,

On 08/11/16 15:31, Korstiaan Schipper wrote:
> Can somebody explain me the meaning and function of the
> CONST_Osm2pgsql_Flatnode_File parameter in the settings.php file of the
> Nominatim software?

> Does it create file (a large one?) or do I put a file there? (which one?).

It creates a file of ~ 35 GB instead of populating planet_osm_nodes. If
you only import Europe, then you'll probably save a few GB. If you
import the world, you will save about 50 GB. If you import just a
country, flatnodes is using more space. Using flatnodes is usually
faster than not using it.

Bye
Frederik


-- 
Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"



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