Excerpts from Tom Lane's message of vie jul 16 12:49:25 -0400 2010:
> Peter Eisentraut <peter_e@gmx.net> writes:
> > On fre, 2010-07-16 at 14:13 +0300, Hannu Krosing wrote:
> >> Should we put some externally managed languages , like pl/proxy also in
> >> pgtemplate, so that CREATE LANGUAGE would work on them ?
>
> > This has been rejected several times before. See:
> > http://archives.postgresql.org/pgsql-hackers/2009-01/msg00050.php
>
> Note that there's nothing stopping a DBA from putting new entries in
> pg_pltemplate within his installation. Peter's points are valid reasons
> why we should be wary of putting entries into our distribution --- it's
> hard to control this sort of stuff over the timescale of a PG major
> release. But per-installation it doesn't seem unreasonable.
Since a week ago, PL/php ships a small install.sql script that adds a
pg_pltemplate entry. This seems easy enough for the DBA.