Re: BUG #6212: PREPARE(pseudotype) should be blocked off

"Caleb Welton" <Caleb.Welton@emc.com> writes:
> statements such as:
>   PREPARE p1(anyelement) AS SELECT quote_literal($1);
>   PREPARE p2(internal) AS SELECT int2recv($1);
> Should not be allowed.

Hmm.  It would require an extra catalog lookup per parameter to enforce
that.  Not sure that it's worth it just to prevent "peculiar" errors.
Can you point to any worse consequences?

            regards, tom lane