[OSM-talk] osm2pgsql diff application with filtered OSM data

[Darafei "Komяpa" Praliaskouski]

Hi Nick,

osm2pgsql is tolerant to features absent in database. You can in theory
even start with empty set of tables and just insert new diff data.

Usually people also clip minutely osc, as per day database grows by a small
country otherwise.

чт, 8 нояб. 2018 г. в 17:37, Nick Whitelegg <nick.whitelegg at solent.ac.uk>:

>
> ... sorry, when I say "full planet extracts" I mean only England, Wales,
> Scotland, Ireland (all) and Greece - not the entire planet.
>
>
> Thanks,
>
> Nick
>
> ------------------------------
> *From:* Nick Whitelegg
> *Sent:* 08 November 2018 14:34:17
> *To:* osm-talk
> *Subject:* osm2pgsql diff application with filtered OSM data
>
>
>
> Hi,
>
>
> Looking towards overhauling the import system I use for my Freemap site (
> free-map.org.uk) which is itself going to go through an overhaul in the
> near future by moving to Tangram and hopefully applying hill shading.
>
>
> At the moment I download full planet extracts about every 6 months.
> However, due to the limitations of my server, I filter out (with osmosis) a
> lot of stuff I don't need so that I am basically left with roads,
> footpaths, natural features, water features and selected POIs.
>
>
> I'd like to move towards a system which applies diffs from geofabrik
> instead, and applies them regularly (daily or weekly) with osm2pgsql.
>
>
> My question is this; given that not everything in the diff will be in my
> database (as I filter out what I don't need during the import process),
> will osm2pgsql apply the diff successfully or will it complain that not all
> features in the diff are in my database?
>
>
> Thanks,
>
> Nick
>
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-- 
Darafei Praliaskouski
Support me: http://patreon.com/komzpa
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