[OSM-dev] How to clean up Negative IDs

SteveC steve at asklater.com
Tue Aug 3 19:39:10 BST 2010


On Aug 3, 2010, at 12:28 PM, Eric Wolf wrote:

> This is in reference to the USGS OSMCP project - not the real OSM...
> 
> When we imported our chunk of data initially (not me - the guy responsible is on walkabout in the Rockies), we followed the convention of using negative IDs in the .OSM file. But osmosis was used to load the data into the database and now all of our data has negative IDs. This seems to have a really nasty effect on the API - every time something is edited, a new copy is created with positive IDs and the old version with the negative IDs persists.
> 
> I assume there is something in the API that says "negative IDs == BAD". I've been trying to test that theory but keep hitting stumbling blocks. Postgres doesn't seem to want to let me defer integrity constraints, so my efforts to change a few IDs to positive values keeps failing. Maybe I've lost my SQL chops (or maybe I just can't do that as the "openstreetmap" database user).
> 
> Am I barking up the right tree? Should I just go ahead and destroy the database and repopulate it using bulk_upload.py instead of osmosis?

I'd do that

> 
> -Eric Wolf
> 
> -=--=---=----=----=---=--=-=--=---=----=---=--=-=-
> Eric B. Wolf                           720-334-7734
> 
> 
> 
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Steve

stevecoast.com




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