create type error message

# select version();
version
--------------------------------------------------------------------------------------------
PostgreSQL 8.1.3 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.3.5 (Debian 1:3.3.5-13)
(1 row)

simple example:
# create type a as (a text,b int);
CREATE TYPE
# create type a as (a text,b int);
ERROR: relation "a" already exists

seems like

ERROR: type "a" already exists
would be better.

Thanks
Jim