Обсуждение: Antw: plpgsql function gets wierd with Null parameters

Skeets Norquist wrote:

> When I call the following plpgsql function with the last two parameters
> as Null, the first parameter loses it's value:
>   ma=> select createFund('fred', null, null);
> ...    
> However it works fine when I give values to the last two params:
>   ma=> select createFund('fred', 'joe', 5);
> ...

It's a known bug of plpgsql that if one arg is NULL, all other args are also assumed to be NULL. 
I think (hope) this will be fixed in a future version.

Gerhard

"Gerhard Dieringer" <DieringG@eba-haus.de> writes:
> It's a known bug of plpgsql that if one arg is NULL, all other args
> are also assumed to be NULL.  I think (hope) this will be fixed in a
> future version.

7.1.  It is already fixed in current development sources.

BTW it's not actually plpgsql's fault, but that of the function-call
interface.  The problem appears no matter what programming language
you write the function in.
        regards, tom lane