Re: Revoking Function Execute Privilege

"David Johnston" <polobo@yahoo.com> writes:
> REVOKE ALL ON FUNCTION testfunc() FROM impotent;

This does not get rid of the default public execute permissions on the
function.  To limit execute rights, you first have to

REVOKE ALL ON FUNCTION testfunc() FROM PUBLIC;

and then grant rights back to the appropriate subset of users.

            regards, tom lane