[OSM-talk] Are osm ids unique?
Nop
ekkehart at gmx.de
Wed Jan 14 07:01:19 GMT 2009
Hello!
Are the ids of osm objects unique?
A) globally unique
B) unique only within the type of object, so the same id may occur with
a way, a node and a relation.
C) unique only within the type of object, but with non-intersecting
numbering schemes
According to the wiki it is B) [1]
In my data processing I have so far assumed A) and never encountered a
problem.
What are the facts?
thanks
Nop
[1] http://wiki.openstreetmap.org/wiki/Database_schema
More information about the talk
mailing list