Re: ISSTRICT behavior

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От Martijn van Oosterhout
Тема Re: ISSTRICT behavior
Дата
Msg-id 20060504072305.GC4752@svana.org
обсуждение исходный текст
Ответ на Re: ISSTRICT behavior  (Don Y <pgsql@DakotaCom.Net>)
Ответы Re: ISSTRICT behavior  (Don Y <pgsql@DakotaCom.Net>)
Список pgsql-general
On Thu, May 04, 2006 at 12:19:12AM -0700, Don Y wrote:
> I'm not designing for the "traditional" role that you're
> used to so I can do whatever makes sense for this product
> and just *define* that as it's behavior.  Since there are
> no other products that compete with it, users don't
> really have much choice!  :>

You can do what you like, however, it's still not clear to me what you
think the problem is. If you want your functions to be declared STRICT,
provide a .sql file that does that. It you want to program defensivly
and not crash if the user declares the function without STRICT, add:

if( PG_ARGISNULL(...) )
    PG_RETURN_NULL();

Which has exactly the same effect. Of course, users could screw up the
data-types also so you could, if you wanted, add more code to check the
datatypes passed.

Fact is, if the user has superuser priveledges, they can create C
functions any way they like. If you want to protect from that you need
to add stuff to your C function.

Have a ncie day,
--
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.

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