Re: in memory views

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От Thomas Vatter
Тема Re: in memory views
Дата
Msg-id 4461B899.4030502@network-inventory.de
обсуждение исходный текст
Ответ на Re: in memory views  (Tino Wildenhain <tino@wildenhain.de>)
Ответы Re: in memory views  (Tino Wildenhain <tino@wildenhain.de>)
Re: in memory views  (Scott Marlowe <smarlowe@g2switchworks.com>)
Список pgsql-performance
Tino Wildenhain wrote:

> Thomas Vatter schrieb:
>
>> is there a possibility for creating views or temp tables in memory to
>> avoid disk io when user makes select operations?
>
>
> No need. The data will be available in OS and database caches if
> they are really required often. If not, tune up the caches and
> do a regular "pre select".
>
> Regards
> Tino
>
>

hmm, I am selecting a resultset with 1300 rows joined from 12 tables.
with jdbc I am waiting 40 seconds until the first row appears. The
following rows appear really fast but the 40 seconds are a problem.

regards
tom


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