Re: Probleme on ALTER

In 7.0, you have to go into pg_attribute and set
attnotnull manually and make sure that there already
isn't null data. In 7.1, you can do the above or
you should be able to just add a table check constraint.

BTW: Was the alter you tried something you'd seen in
another database or just a guess? I've been wondering
about appropriate syntax for that since I haven't
seen one in sql92 (other than adding a table constraint
that checks the column against null).

Stephan Szabo
sszabo(at)bigpanda(dot)com

On Wed, 8 Nov 2000, [iso-8859-1] Mickal Jouanne wrote:

> Hello !
>
> I have this table :
>
> Attribute | Type | Modifier
> -----------------+--------------+---------------------------------------
> ref | integer | default nextval('cvdb_ref_seq'::text)
> nom | varchar(50) |
> prenom | varchar(50) |
> email | varchar(100) |
> password | varchar(20) |
>
>
> but i forgot to do "NOT NULL" on the fields.
>
> I try ALTER table ALTER COLUMN ref ADD CONSTRAINT NOT NULL but it doesn't work.
>
> Does someone have the right solution ?