"Stuart Grimshaw" <stuart.grimshaw@gmail.com> 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

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