Bruce Momjian <bruce@momjian.us> writes:
> Since we now install PL/pgSQL by default, should we configure
> shared_preload_libraries to preload PL/pgSQL?
I don't think that follows. The fact that it's there doesn't mean
everyone is using it. In any case, I've seen no evidence that says
you'd get a performance win this way. The preload feature is meant
for modules that do a substantial amount of work at load time, which
plpgsql does not.
regards, tom lane