Ivan Sergio Borgonovo <mail(at)webthatworks(dot)it> writes:
> I haven't been able to find anything better than the online manual
> and pg source code to learn how to write extensions.
Maybe this will help:
http://wiki.postgresql.org/wiki/Image:Prato_2008_prefix.pdf
http://github.com/dimitri/prefix
Regards,
--
dim