Re: If there are more than two functions in different schemas, the functions have the same name and same arguments, \df[+] only display the function that schema first appeared in the search_path.

postgres=# \df fun1

                                      List of functions

 Schema | Name | Result data type |                Argument data types                 | Type 

--------+------+------------------+----------------------------------------------------+------

 public | fun1 | record           | arg1 integer, OUT arg2 integer, INOUT arg3 integer | func

(1 row)

postgres=# SELECT pg_function_is_visible(16386);

 pg_function_is_visible 

------------------------

 t

(1 row)

postgres=# SELECT pg_function_is_visible(16389);  --Should display t?

 pg_function_is_visible 

------------------------

 f

(1 row)