"Stuart Grimshaw" <stuart.grimshaw@xxxxxxxxx> writes: > I've installed the postgresql-contrib8.1 deb package to get at the > earthdistance function, but it doesn't seem to be recognised, even > after a restart of the server. > Is there a final step I need to take after using apt-get to install? Yeah, you have to run the SQL script included in the module to define its functions within a particular database. Look for earthdistance.sql among the files installed by the .deb (it's likely under /usr/share). regards, tom lane