PRIMARY KEY and UNIQUE - Mailing list pgsql-general

Hi,

I have a such a table.

CREATE TABLE int_article (
  name          VARCHAR(12) UNIQUE
  headline      TEXT,
  summary      TEXT,
  main            TEXT,
  footer           TEXT,
  PRIMARY KEY (name)
);

Is the UNIQUE constraint neccessary, because if have specified the column
name to be the primary key.

Thanks in advance
Erwin