Re: More buffers used than a relation's relpages

Поиск
Список
Период
Сортировка
От Andres Freund
Тема Re: More buffers used than a relation's relpages
Дата
Msg-id 20130604130406.GA2854@alap2.anarazel.de
обсуждение исходный текст
Ответ на More buffers used than a relation's relpages  (Amit Langote <amitlangote09@gmail.com>)
Ответы Re: More buffers used than a relation's relpages  (Amit Langote <amitlangote09@gmail.com>)
Список pgsql-general
On 2013-06-04 11:29:44 +0900, Amit Langote wrote:
> In what cases can a relation use more buffers (in shared memory) than
> its pg_class.relpages?

relpages is primarily updated by (auto-)vacuum, (auto-)analyze, so it
frequently lags behind reality in a growing relation. Why do you need an
exact value?

Greetings,

Andres Freund

--
 Andres Freund                       http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services


В списке pgsql-general по дате отправления:

Предыдущее
От: David Johnston
Дата:
Сообщение: Re: Passing a WHERE clause by trigger to a function
Следующее
От: Melvin Call
Дата:
Сообщение: Re: Passing a WHERE clause by trigger to a function