checking pgsql functions

Hi folks,

Is it possible to check plpgsql functions before they're actually
into the database, as it's done w/ sql functions ?

Often I've got the problem that a function still contains some
syntax errors (well, nobody's perfect), but my application is
quite critical (a single crashing trigger may cost a lot of money).
So I'd like to checkin only syntactically correct (also with
correct references).

Is it possible somehow ?

cu
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