Re: Using oids

Поиск
Список
Период
Сортировка
От Martijn van Oosterhout
Тема Re: Using oids
Дата
Msg-id 20030904024011.GB16796@svana.org
обсуждение исходный текст
Ответ на Re: Using oids  (Bo Lorentsen <bl@netgroup.dk>)
Список pgsql-general
On Wed, Sep 03, 2003 at 10:08:47PM +0200, Bo Lorentsen wrote:
> On Wed, 2003-09-03 at 18:24, Greg Stark wrote:
>
> I am maintaining a driver layer, so that exactly why I care about this
> kind of problem :-)
>
> > The pros: no extra overhead for OIDs, more portable to other databases.
> So when will this kind of meta data be provided, to let me detect if
> there is at "PRIMARY KEY" on a table. ?

That metadata has been around for a while, it's all stored in the system
tables. It's not returned with each query though. pg_attribute and pg_class
tell you almost everything you need to know.

--
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> "All that is needed for the forces of evil to triumph is for enough good
> men to do nothing." - Edmond Burke
> "The penalty good people pay for not being interested in politics is to be
> governed by people worse than themselves." - Plato

Вложения

В списке pgsql-general по дате отправления:

Предыдущее
От: Alvaro Herrera
Дата:
Сообщение: Re: Comparing dates
Следующее
От: Tom Lane
Дата:
Сообщение: Re: Optimizer picks an ineffient plan