Re: URGENT: Performance tuning

From: Peter Dimov <jquest_j(at)yahoo(dot)com>
To: Curt Sampson <cjs(at)cynic(dot)net>, Ericson Smith <eric(at)did-it(dot)com>
Cc: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, pgsql-general(at)postgresql(dot)org
Subject: Re: URGENT: Performance tuning
Date: 2002-06-22 13:13:10
Message-ID: 20020622131310.64013.qmail@web21507.mail.yahoo.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general


Hi,
Curt, you are rigth. I tested it.
My idea was only to compare postgres with oracle and to see if it is good.
I got the simplest example with simple data inserting.
I do not have any answer on my questin:
Is postgres good as performace compared to oracle and if yes how to fine tune it.
I readet all docs that Ifound, changed shared buffers and sort chache but can not
get good result.

And the second question:
Was enyone from the list a good perofmed postgres and if yes can I receiv this test result.
If no one had good tuned postgres I do not see the need to use it. For me it can be only "play", demo or...?

Thanks.
Curt Sampson <cjs(at)cynic(dot)net> wrote: On 20 Jun 2002, Ericson Smith wrote:

> For this purpose, you have to have indexes, yes.

Why? Given that there are only five values in the column in question
in a table with over a million rows, the selectivity of the index
would be so low I can't see how postgres would ever use it.

cjs
--
Curt Sampson +81 90 7737 2974 http://www.netbsd.org
Don't you know, in this new Dark Age, we're all light. --XTC

---------------------------(end of broadcast)---------------------------
TIP 6: Have you searched our list archives?

http://archives.postgresql.org

---------------------------------
Do You Yahoo!?
Sign-up for Video Highlights of 2002 FIFA World Cup

In response to

Responses

Browse pgsql-general by date

  From Date Subject
Next Message Oskar Berggren 2002-06-22 15:58:28 SQL server application porting headache
Previous Message Curt Sampson 2002-06-22 10:44:11 Re: read this and puke