problem with unique entry

Hi,

I have a simple table:

create table users
(
id serial primary key,
login text unique not null,
passwd text,
last_access date,
tables_to_show int4[],
passwds_for_tables text[]
);

This will produce output:

david=> create table users
david-> (
david-> id serial primary key,
david-> login text unique not null,
david-> passwd text,
david-> last_access date,
david-> tables_to_show int4[],
david-> passwds_for_tables text[]
david-> );
NOTICE: CREATE TABLE will create implicit sequence 'users_id_seq' for SERIAL column 'users.id'
NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'users_pkey' for table 'users'
CREATE
david=> \d users
Table = users
+----------------------------------+----------------------------------+-------+
| Field | Type | Length|
+----------------------------------+----------------------------------+-------+
| id | int4 not null default nextval('" | 4 |
| login | text not null | var |
| passwd | text | var |
| last_access | date | 4 |
| tables_to_show | int4[] | var |
| passwds_for_tables | text[] | var |
+----------------------------------+----------------------------------+-------+
Index: users_pkey

My question (I think, that this is bug) is simple: why unique entry 'login'
doesn't create implicit unique index ?
This is true on my 6.5.1 on linux x86, compiled by gcc 2.95.

6.4.2 compiled by gcc 2.7.2 works fine.

--
* David Sauer, student of Czech Technical University
* electronic mail: davids(at)penguin(dot)cz (mime compatible)