Yes, yes I am. This explains why, when I checked timestamps on the zero/one node ways, they were all after the timestamp on the planet file I pulled to create the initial planet DB. It also explains the difference between the Geofabrik errors and the query results returned from the internal planet DB.
https://trac.openstreetmap.org/ticket/4378 documents the Potlatch issue, which will be challenging to fully resolve due to the apparent number of variants in the wild. I have no .as foo or I'd try to fix it myself. Yes, an API fix to reject zero/one node ways might be best, as it's gonna get tedious to keep clearing these errors. Dare I suggest a fixbot ;-) Best, On Fri, Dec 28, 2012 at 12:11 PM, Toby Murray <toby.mur...@gmail.com> wrote: > Are you running a snapshot schema, imported with osmosis? If so then > you just discovered the same thing I did a couple of months ago. > Osmosis silently drops ways with less than 2 nodes during import. > (yes, ways with zero nodes exist too) This is because they create an > invalid linestring which can cause problems with geographic queries. > > There is one plot twist. While consuming replication diffs, osmosis > does *not* drop these ways. So you probably do have zero and single > node ways in your database, but only ones created after you started > applying minutely/hourly/daily diffs. > > I have written a patch for osmosis that makes this behavior explicit > and optional with a --kepInvalidWays=yes/no option. It also allows the > same option to be applied to diff consumption so that the two are > consistent. It has yet to be merged as there was some discussion about > it on the osmosis-dev mailing list. It is on my github fork though: > https://github.com/ToeBee/osmosis > > Unfortunately P2 has a bug that creates these ways rather often. OSM > inspector has a layer that displays them: > http://tools.geofabrik.de/osmi/?view=geometry&overlays=single_node_in_way > > IMO the editing API really should reject ways with zero or one node in > them as invalid. But there is no way that change will happen until P2 > is fixed... > > Toby > > > On Fri, Dec 28, 2012 at 1:47 PM, the Old Topo Depot > <oldto...@novacell.com> wrote: > > This way > > > > http://www.openstreetmap.org/browse/way/13694101 > > > > is not in ways nor way_nodes tables in a PostGIS replica I have of the > OSM > > planet, yet it appears in the master DB copy. > > > > I admit that I cannot understand how this might be, and I'm wondering if > > anyone has more insight into this situation. Where's the data ? > > > > Thanks, > > > > -- > > John Novak > > 585-OLD-TOPOS (585-653-8676) > > http://www.linkedin.com/in/johnanovak/ > > OSM ID:oldtopos > > OSM Heat Map: http://yosmhm.neis-one.org/?oldtopos > > OSM Edit Stats:http://hdyc.neis-one.org/?oldtopos > > > > _______________________________________________ > > Talk-us mailing list > > Talk-us@openstreetmap.org > > http://lists.openstreetmap.org/listinfo/talk-us > > > > _______________________________________________ > Talk-us mailing list > Talk-us@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-us > -- John Novak 585-OLD-TOPOS (585-653-8676) http://www.linkedin.com/in/johnanovak/ OSM ID:oldtopos OSM Heat Map: http://yosmhm.neis-one.org/?oldtopos OSM Edit Stats:http://hdyc.neis-one.org/?oldtopos
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