[OSM-dev] Extended diffs

[Frederik Ramm]

Komяpa,

> After some time of thinking what's needed in order to keep osm2pgsql
> database up-to-date, I've come to idea of extended diffs.

Yes, that is an excellent idea and would make processing easier for many 
use cases. (For some use cases it would be good if the diff contained a 
"before" and "after" picture - that way you could e.g. have a running 
count of the road lengths in some place without storing anything 
locally. But that might then be too voluminous.)

I used to call this an "augmented diff".

The beauty of this is that such diffs can be issued by anyone who sets 
up a server for it; no need to change anything on OSMF servers.

I had a brief conversation with Roland Olbricht about this who suggested 
that maybe his Overpass API could be fashioned into producing such diffs 
but I don't think anybody had really implemented anything.

Bye
Frederik

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