You could do this with pgsnapshot (or if just doing analysis, osm2pgsql) in the same database as changesetmd, and then do JOINs between the tables to get objects that were last modified in a changeset that had a particular tag.
This may be hampered by two things - A lack of minutely diff support by changesetmd - A lack of schema support in most OSM software. See http://www.postgresql.org/docs/9.1/static/ddl-schemas.html in the postgresql docs for information about schemas. osmosis This probably isn't exactly what you want, but I think it's the best there is at this point. From: william skora [mailto:[email protected]] Sent: Sunday, May 05, 2013 8:50 AM To: [email protected] Subject: [OSM-dev] Querying Changeset Tags in OSM API Hi, I'm curious if there's any current capabilities to filter entire objects based on the tags used on the changeset. I'm on the CAP103 team in Northern Haiti with HOT and we'd like to filter objects modified by mappers that we are training by querying changesets, instead of adding a tag to each object within a specific bbox and a changeset tag with something like source:Project=CAP103. Ideally, I'd prefer to do this through a server-side interface (XAPI) but would be open to client-side filtering options like osmosis. as I understand, Overpass isn't currently capable to do this; it is only able to query within Any advice and help is appreciated. Regards, Will
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