If I try to define a simple table as this: 

```
create table test 
(
    id integer primary key
);

```

When I see the table details using the command:*describe test*, I see that test has an int(11) as type of the attribute id.  

I am using mysql 5.5 cluster on Mac os X, I can't figure the reason of this, how do I declare a single integer? Must I declare it as int(1)? There isn't another way?