Re: Scaling up deferred unique checks and the after trigger queue

Поиск
Список
Период
Сортировка
От Robert Haas
Тема Re: Scaling up deferred unique checks and the after trigger queue
Дата
Msg-id 603c8f070910191002t5771f96cqd3a9b2050f70b1a4@mail.gmail.com
обсуждение исходный текст
Ответ на Re: Scaling up deferred unique checks and the after trigger queue  (Dean Rasheed <dean.a.rasheed@googlemail.com>)
Ответы Re: Scaling up deferred unique checks and the after trigger queue  (Dean Rasheed <dean.a.rasheed@googlemail.com>)
Список pgsql-hackers
Дерево обсуждения 
On Mon, Oct 19, 2009 at 12:48 PM, Dean Rasheed
<dean.a.rasheed@googlemail.com> wrote:
> This is a WIP patch to replace the after-trigger queues with TID bitmaps
> to prevent them from using excessive amounts of memory. Each round of
> trigger executions is a modified bitmap heap scan.

If the bitmap becomes lossy, how do you preserve the correct semantics?

...Robert

В списке pgsql-hackers по дате отправления:

Предыдущее
От: Dean Rasheed
Дата:
Сообщение: Re: Scaling up deferred unique checks and the after trigger queue
Следующее
От: "Kevin Grittner"
Дата:
Сообщение: Re: Controlling changes in plpgsql variable resolution