Re: obj_unique_identifier(oid)

Поиск
Список
Период
Сортировка
От Robert Haas
Тема Re: obj_unique_identifier(oid)
Дата
Msg-id AANLkTimTPZiDmurBC26ncQEH4EvxhH=V2-jZ-U=joni9@mail.gmail.com
обсуждение исходный текст
Ответ на Re: obj_unique_identifier(oid)  (Joel Jacobson <joel@gluefinance.com>)
Список pgsql-hackers
On Sat, Jan 8, 2011 at 8:02 PM, Joel Jacobson <joel@gluefinance.com> wrote:
> 2011/1/9 Robert Haas <robertmhaas@gmail.com>:
>> Oops.  I misread your query.  I thought the duplicates were because
>> you were feeding pg_describe_object the same classoid, objoid,
>> objsubid pair more than once, but I see now that's not the case (UNION
>> != UNION ALL).
>
> Ah, I see, yes, the query should actually be UNION, it would produce
> the same result, but perhaps it would be a bit faster.

You did use UNION - I think if you used UNION ALL you'd get spurious
results.  But maybe I'm still confused.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


В списке pgsql-hackers по дате отправления:

Предыдущее
От: Robert Haas
Дата:
Сообщение: Re: WIP: Range Types
Следующее
От: Jeff Davis
Дата:
Сообщение: Re: WIP: Range Types