BUG #5460: Search path not being used in function return type

The following bug has been logged online:

Bug reference:      5460
Logged by:          Karl Walbrecht
Email address:      kwalbrecht@cghtech.com
PostgreSQL version: 8.4.3
Operating system:   Solaris x86 64 bit
Description:        Search path not being used in function return type
Details:

# show search_path;
   search_path
------------------
 security, public

-- This works
CREATE OR REPLACE FUNCTION sec_authorization_check_all(
    v_entity_name varchar
) RETURNS setof security.entities AS

-- This does not
CREATE OR REPLACE FUNCTION sec_authorization_check_all(
    v_entity_name varchar
) RETURNS setof entities AS

psql:./functions/sec_authorization_check_all.sql:41: ERROR:  type "entities"
does not exist