Re: execution time for first INSERT

Поиск
Список
Период
Сортировка
От Jeff Davis
Тема Re: execution time for first INSERT
Дата
Msg-id 1310172023.5376.4.camel@jdavis-ux.asterdata.local
обсуждение исходный текст
Ответ на execution time for first INSERT  (Sergio Mayoral <mayoralstuttgart@yahoo.com>)
Список pgsql-performance
On Fri, 2011-07-08 at 04:23 -0700, Sergio Mayoral wrote:
> this must be something with the parser stage and since i am doing
> every time the same queries, I would like to know if there is a way to
> cache these queries in order to speed up the first INSERT.

I doubt it's the parser.

Seeing as it's around a couple ms at minimum, it's probably some kind of
IO latency. You could see that by wrapping the statements in a big
transaction (BEGIN/END block) -- I bet the inserts go very quickly and
the final commit takes longer.

Regards,
    Jeff Davis


В списке pgsql-performance по дате отправления:

Предыдущее
От: Jonathan
Дата:
Сообщение: Re: Slow query when using ORDER BY *and* LIMIT
Следующее
От: Pavel Stehule
Дата:
Сообщение: Re: Slow query when using ORDER BY *and* LIMIT