Nicolas Barbier <nicolas.barbier@gmail.com> writes:
> 2011/1/16 Simone Aiken <saiken@ulfheim.net>:
>> ... So even though the documentation says that column
>> maps to pg_proc.oid I can't then write:
>> Select * from pg_proc where oid = 'boolout';
> Type type of typoutput is "regproc", which is really an oid with a
> different output function. To get the numeric value, do:
> Select typoutput::oid from pg_type limit 1;
Also, you *can* go back the other way. It's very common to write
Select * from pg_proc where oid = 'boolout'::regproc
rather than looking up the OID first. There are similar pseudotypes for
relation and operator names; see "Object Identifier Types" in the
manual.
regards, tom lane