Re: DEFERRABLE NOT NULL constraint

Gavan Schneider <pg-gts@snkmail.com>

From: Gavan Schneider <pg-gts@snkmail.com>
To: pgsql-general@postgresql.org
Date: 2013-02-06T19:38:21Z
Lists: pgsql-general
On Wednesday, February 6, 2013 at 23:31, 
00jkxma2vt@sneakemail.com (Alban Hertroys haramrae-at-gmail.com 
|pg-gts/Basic|) wrote:

>On 6 February 2013 12:56, Chris Angelico <rosuav@gmail.com> wrote:
>
>>If you get into a taxi and ask
>>to be driven to New Zealand within the hour, no amount of begging will
>>get you what you want.
>>
>
>....Unless you get into a taxi in New Zealand.
>

   ....Which makes the request effectively NULL, planning to do 
this makes it DEFFERABLE.


Taking a different tangent ...

Is there anything in the SQL standards about NOT NULL 
constraints being deferrable?

To my mind we should not consider implementing non-standard 
behaviour, but if something is in the standard I can't see why 
it shouldn't be implemented, esp. when there is no compulsion 
for it to be used.

Regards
Gavan Schneider