> Does postgresql have functions to calculate the distance between two > sets of longitude and latitude. >
You're looking for the earthdistance contrib module. With most Linux distros it's installed under /usr/share/postgresql/8.xx/contrib You may have to install a "postgresql-contrib" package depending on your distro. Typing "locate earthdistance.sql" should reveal the location if it's available already. To activate you'd just do a "pgsql [database] < /whereever/earthdistance.sql" HTH Uwe -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
