pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Thomas Vatter <thomas.vatter@network-inventory.de>
To: Tino Wildenhain <tino@wildenhain.de>
Cc: pgsql-performance@postgresql.org
Subject: Re: in memory views
Date: Wed, 10 May 2006 11:55:37 +0200
Message-ID: <4461B899.4030502@network-inventory.de> (raw)
In-Reply-To: <4461B3DE.6030700@wildenhain.de>
References: <4461AFFF.7060200@network-inventory.de>
	<4461B3DE.6030700@wildenhain.de>

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




view thread (19+ messages)  latest in thread

Message-ID: <4461B899.4030502@network-inventory.de>
Permalink:  ../4461B899.4030502@network-inventory.de/
Also on:    postgresql.org/message-id/4461B899.4030502@network-inventory.de

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-performance@postgresql.org
  Cc: thomas.vatter@network-inventory.de, tino@wildenhain.de
  Subject: Re: in memory views
  In-Reply-To: <4461B899.4030502@network-inventory.de>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox