Обсуждение: pg_get_domaindef()

Hi All,

I am now trying to implement pg_get_domaindef() function which is in the TODO 
list and ran into a minor issue.

When the following command is given

CREATE DOMAIN testdomain AS text CONSTRAINT testconstraint NOT NULL;

I couldn't find the CONSTRAINT name ('testconstraint' in this case) being 
stored in the system catalog. Any idea where I can find it?

Or is it acceptable, for the above statement, for pg_get_domaindef() to 
return 

CREATE DOMAIN testdomain AS text CONSTRAINT NOT NULL;

Rgds,
Arul Shaji
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On Oct 26 03:33, FAST PostgreSQL wrote:
> I couldn't find the CONSTRAINT name ('testconstraint' in this case) being 
> stored in the system catalog. Any idea where I can find it?

AFAIK, it is passed to the related procedure via a DomainIOData struct
that fcinfo->flinfo->fn_extra points to. (See domain_in() in
backend/utils/adt/domains.c)


Regards.

On Oct 26 05:27, Volkan YAZICI wrote:
> On Oct 26 03:33, FAST PostgreSQL wrote:
> > I couldn't find the CONSTRAINT name ('testconstraint' in this case) being 
> > stored in the system catalog. Any idea where I can find it?
> 
> AFAIK, it is passed to the related procedure via a DomainIOData struct
> that fcinfo->flinfo->fn_extra points to. (See domain_in() in
> backend/utils/adt/domains.c)

Ah, please excuse my wrong answer. See GetDomainConstraints() function
in the same file.


Regards.