On Wed, Oct 12, 2005 at 08:23:15PM +0100, Oliver Elphick wrote:
> On Wed, 2005-10-12 at 12:13 -0600, Michael Fuhr wrote:
> > On another note, regarding the following:
> >
> > > invdate | date | not null default ('now'::text)::date
> > > taxpoint | date | not null default ('now'::text)::date
> >
> > Are you sure you want 'now'::text as a default, considering the
> > warning against it?
>
> I actually use CURRENT_DATE; that is what the system turns it into.
Ah yes, I see that now. I generally use now(), so I hadn't noticed
that CURRENT_DATE and CURRENT_TIMESTAMP become 'now', whereas only
a literal 'now' is expanded at create time:
CREATE TABLE foo (
d1 date NOT NULL DEFAULT now(),
d2 date NOT NULL DEFAULT CURRENT_DATE,
d3 date NOT NULL DEFAULT 'now'
);
\d foo
Table "public.foo"
Column | Type | Modifiers
--------+------+--------------------------------------
d1 | date | not null default now()
d2 | date | not null default ('now'::text)::date
d3 | date | not null default '2005-10-12'::date
--
Michael Fuhr
