Re: Temporally disabled foreign key constraint check?

Thank you first.

I believe that upate pg_class can only be done by superuser, right?

Besides, if I need the whole schema's foreign keys to be disabled and
then enabled later.

Is there a simple command could do it? Similar to mysql's "set
FOREIGN_KEY_CHECKS = false/true"?

Emi

On 10/21/2011 11:12 AM, raghu ram wrote:
>
>
> On Fri, Oct 21, 2011 at 8:33 PM, Emi Lu <emilu@encs.concordia.ca
> <mailto:emilu@encs.concordia.ca>> wrote:
>
>     Good morning,
>
>
>     Is there a way to temporally disabled foreign key constraints
>     something like:
>
>     SET FOREIGN_KEY_CHECKS=0
>
>     When population is done, will set FOREIGN_KEY_CHECKS=1
>
>
> You can disable *triggers* on a table (which will disable all the FK
> constraints, but not things like 'not nul' or 'unique').
>
> For Disable:
>
> update pg_class set reltriggers=0 where relname = 'TEST';
>
> For Enable:
>
> update pg_class set reltriggers = count(*) from pg_trigger where
> pg_class.oid=tgrelid and relname='TEST';
>
> --Raghu


--
Emi Lu, ENCS, Concordia University, Montreal H3G 1M8
emilu@encs.concordia.ca        +1 514 848-2424 x5884