[OSM-dev] API: no BBOX download of a way if no nodes inside the BBOX?

Matt Amos zerebubuth at gmail.com
Sun Apr 26 23:07:04 BST 2009


On Sun, Apr 26, 2009 at 9:16 PM, Frederik Ramm <frederik at remote.org> wrote:
> I think it would be promising to set up a daily/hourly/minutely diff
> based API mirror outside of the OSM empire that uses proper PostGIS
> geometries so we could do performance comparisons.

i did a simple performance comparison of our tile-based btree node
lookup versus a proper postgis r-tree. the r-tree was twice as slow.

usual caveats apply - testing methodology was simple, database wasn't
under update load, nothing was tuned, etc...

cheers,

matt




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