Re: Outer joins and Seq scans

Поиск
Список
Период
Сортировка
От Tom Lane
Тема Re: Outer joins and Seq scans
Дата
Msg-id 10339.1193615114@sss.pgh.pa.us
обсуждение исходный текст
Ответ на Re: Outer joins and Seq scans  (Sami Dalouche <skoobi@free.fr>)
Ответы Re: Outer joins and Seq scans  (Dimitri Fontaine <dfontaine@hi-media.com>)
Список pgsql-performance
Sami Dalouche <skoobi@free.fr> writes:
> So, the version of postgres I use is :
> samokk@samlaptop:~/Desktop $ dpkg -l | grep postgres
> ii  postgresql-8.2                             8.2.5-1.1

OK.  I think you have run afoul of a bug that was introduced in 8.2.5
that causes it not to realize that it can interchange the ordering of
certain outer joins.  Is there any chance you can apply the one-line
patch shown here:
http://archives.postgresql.org/pgsql-committers/2007-10/msg00374.php

If rebuilding packages is not to your taste, possibly a down-rev to
8.2.4 would be the easiest solution.

            regards, tom lane

В списке pgsql-performance по дате отправления:

Предыдущее
От: Sami Dalouche
Дата:
Сообщение: Re: Outer joins and Seq scans
Следующее
От: Dimitri Fontaine
Дата:
Сообщение: Re: Outer joins and Seq scans