[OSM-dev] Best and FASTEST Spatial DB for only calculating points near to X?
ian.dees at gmail.com
Fri Dec 14 21:04:59 GMT 2012
On Fri, Dec 14, 2012 at 3:02 PM, Martin Schafran <martin at ampelmeter.com>wrote:
> > Thanks a lot for the advice. The query as I previously mentioned it would
> > be as simple as a "SELECT * FROM db WHERE X=X AND DISTANCE<5km". There
> > wouldn't be more type of queries.
> what happens if X=X matches the half database?
> a lot of comparisons.
> filter nodes by bbox
> WHERE ST_MakeBox2D(ST_GeomFromText(?, 4326), ST_GeomFromText(?, 4326)) &&
> statement.setString(1, lowerLeft.toString());
> statement.setString(2, upperRight.toString());
> and then
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