Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> writes:
> input value of regrocedure type should be complete function signature.
> postgres=# select 'uni'::regprocedure;
> ERROR: expected a left parenthesis
> LINE 1: select 'uni'::regprocedure;
> ^
Yup.
> I think so it is not necessary, when function name is unique.
This doesn't seem like a great idea to me. It will just encourage
people to write brittle code that falls over as soon as the name
isn't unique. Also, if you're willing to assume that it is,
why not just use regproc?
regards, tom lane