In -9.0.3 I used ALTER TABLE to replace a varchar() column with a bigint column so it can be assigned as the table's primary key. From the 9.0.3 manual I tried various flavors of ALTER TABLE <tablename> ADD CONSTRAINT but cannot find the proper syntax to create the PK. Do I need to first make the column UNIQUE, then add a NOT NULL constraint? Rich -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
