On Thu, Jun 29, 2006 at 11:15:09PM -0400, blackwater dev wrote:
> Does anyone have a good tutorial on finding gps points within a polygon? I
> need to be able to pass in a list of gps coordinates and let postgres return
> to me matching cities from my cities table that are within that polygon.
PostgreSQL has some basic geometry types and functions, but for
more advanced spatial work consider using PostGIS (an add-on to
PostgreSQL). The documentation has a "Using PostGIS" chapter with
examples.
http://www.postgis.org/
--
Michael Fuhr
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
