Re: how to view the content of schema pg_catalog?

Jim C. Nasby wrote:
> Please include the list in your replies so that others can learn.
>
> On Mon, May 07, 2007 at 09:35:10AM -0400, Fei Liu wrote:
>
>> Jim Nasby wrote:
>>
>>> On Apr 25, 2007, at 4:37 PM, Fei Liu wrote:
>>>
>>>> I couldn't find anything in the postgresql manual as how to view its
>>>> content. SELECT does not seem to work.
>>>>
>>> What's the exact command and error message?
>>>
>> netilla=#  \dn
>>        List of schemas
>>        Name        |  Owner
>> --------------------+----------
>> information_schema | postgres
>> pg_catalog         | postgres
>> pg_toast           | postgres
>> public             | postgres
>> (4 rows)
>>
>> netilla=# select * from pg_catalog;
>> ERROR:  relation "pg_catalog" does not exist
>>
>
> That would be because pg_catalog is a schema; you can't select from it.
> If you want to see what's in there, use \dS.
>
Thanks, \dS works ( it does not take an argument). Is there a programtic
way for me to see this from either Perl or C? Does pgsql export APIs to
check schema content?

Fei