function lookup using a "real" function call

On Thu, Jun 28, 2012 at 3:30 PM, Marc Mamin <M.Mamin@intershop.de> wrote:

Hello,

Is it possible to find out the (list of) function oids from a function
call?

e.g. select MYFUNC('foo', 1234)

=> someting like

select * from get_function_oids($$MYFUNC('foo', 1234)$$)

Below approach provides information of the OID of the function::

postgres=# create function myfunc(int) returns int as 'select $1' language
sql;
CREATE FUNCTION

postgres=# SELECT 'myfunc(int)'::regprocedure::oid;
oid
-------
24612
(1 row)

postgres=# select 24612::regprocedure;
regprocedure
-----------------
myfunc(integer)

--

Thanks & Regards,

Raghu Ram