From: "Steve SAUTETNER" <ssa@informactis.com>
> I tried to create plpgsql functions, but this language seems not to be
> installed.
>
> I think i must use "CREATE LANGUAGE" but i don't know how to use it.
Try the "createlang" command-line tool:
createlang plpgsql mydbname
HTH
- Richard Huxton