Re: slow query performance

Поиск
Список
Период
Сортировка
От Anj Adu
Тема Re: slow query performance
Дата
Msg-id AANLkTikb6ap3kMKVoatB3nT5xQeir61sA920NicU2AGm@mail.gmail.com
обсуждение исходный текст
Ответ на Re: slow query performance  (Robert Haas <robertmhaas@gmail.com>)
Ответы Re: slow query performance  (Robert Haas <robertmhaas@gmail.com>)
Re: slow query performance  (Anj Adu <fotographs@gmail.com>)
Список pgsql-performance
Attached

Thank you


On Thu, Jun 10, 2010 at 6:28 AM, Robert Haas <robertmhaas@gmail.com> wrote:
> On Wed, Jun 9, 2010 at 11:17 PM, Anj Adu <fotographs@gmail.com> wrote:
>> The plan is unaltered . There is a separate index on theDate as well
>> as one on node_id
>>
>> I have not specifically disabled sequential scans.
>
> Please do "SHOW ALL" and attach the results as a text file.
>
>> This query performs much better on 8.1.9 on a similar sized
>> table.(althought the random_page_cost=4 on 8.1.9 and 2 on 8.4.0 )
>
> Well that could certainly matter...
>
> --
> Robert Haas
> EnterpriseDB: http://www.enterprisedb.com
> The Enterprise Postgres Company
>

Вложения

В списке pgsql-performance по дате отправления:

Предыдущее
От: Heikki Linnakangas
Дата:
Сообщение: Re: Autovaccum settings while Bulk Loading data
Следующее
От: Max Williams
Дата:
Сообщение: Re: Large (almost 50%!) performance drop after upgrading to 8.4.4?