function lookup using a "real" function call

["Marc Mamin" <M.Mamin@xxxxxxxxxxxx>]

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($$MYFUNC('foo', 1234)$$)


best regards,

Marc Mamin


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