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Re: copy and postgresql.conf

From: Albert Cervera Areny <albert(at)sedifa(dot)com>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: copy and postgresql.conf
Date: 2006-02-14 16:06:59
Message-ID: 200602141706.59745.albert@sedifa.com (view raw or flat)
Thread:
Lists: pgsql-performance
Sorry, COPY improvements came with 8.1 
(http://www.postgresql.org/docs/whatsnew)

A Dimarts 14 Febrer 2006 14:26, FERREIRA, William (VALTECH) va escriure:
> thanks,
>
> i'm using postgresql 8.0.3
> there is no primary key and no index on my tables
>
> regards
>
> -----Message d'origine-----
> De : pgsql-performance-owner(at)postgresql(dot)org
> [mailto:pgsql-performance-owner(at)postgresql(dot)org]De la part de Albert
> Cervera Areny
> Envoyé : mardi 14 février 2006 12:38
> À : pgsql-performance(at)postgresql(dot)org
> Objet : Re: [PERFORM] copy and postgresql.conf
>
>
>
> Hi William,
> 	which PostgreSQL version are you using? Newer (8.0+) versions have some
>
> important performance improvements for the COPY command.
>
> 	Also, you'll notice significant improvements by creating primary & foreign
>
> keys after the copy command. I think config tweaking can improve key and
>
> index creation but I don't think you can improve the COPY command itself.
>
> 	There are also many threads in this list commenting on this issue, you'll
>
> find it easely in the archives.
>
> A Dimarts 14 Febrer 2006 10:44, FERREIRA, William (VALTECH) va escriure:
> > hi,
> >
> > i load data from files using copy method.
> > Files contain between 2 and 7 millions of rows, spread on 5 tables.
> >
> > For loading all the data, it takes 40mn, and the same processing takes
> > 17mn with Oracle. I think that this time can be improved by changing
> > postgresql configuration file. But which parameters i need to manipulate
> > and with which values ?
> >
> > Here are the specifications of my system :
> > V250 architecture sun4u
> > 2xCPU UltraSparc IIIi 1.28 GHz.
> > 8 Go RAM.
> >
> > Regards.
> >
> > 	Will
> >
> >
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> >                http://archives.postgresql.org
>
> --
>
> Albert Cervera Areny
> Dept. Informàtica Sedifa, S.L.
>
> Av. Can Bordoll, 149
> 08202 - Sabadell (Barcelona)
> Tel. 93 715 51 11
> Fax. 93 715 51 12
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-- 
Albert Cervera Areny
Dept. Informàtica Sedifa, S.L.

Av. Can Bordoll, 149
08202 - Sabadell (Barcelona)
Tel. 93 715 51 11
Fax. 93 715 51 12

====================================================================
........................  AVISO LEGAL  ............................
La   presente  comunicación  y sus anexos tiene como destinatario la
persona a  la  que  va  dirigida, por  lo  que  si  usted lo  recibe
por error  debe  notificarlo  al  remitente  y   eliminarlo   de  su
sistema,  no  pudiendo  utilizarlo,  total  o   parcialmente,   para
ningún  fin.  Su  contenido  puede  tener información confidencial o
protegida legalmente   y   únicamente   expresa  la  opinión     del
remitente.  El   uso   del   correo   electrónico   vía Internet  no
permite   asegurar    ni  la   confidencialidad   de   los  mensajes
ni    su    correcta     recepción.   En    el  caso   de   que   el
destinatario no consintiera la utilización  del correo  electrónico,
deberá ponerlo en nuestro conocimiento inmediatamente.
====================================================================
........................... DISCLAIMER .............................
This message and its  attachments are  intended  exclusively for the
named addressee. If you  receive  this  message  in   error,  please
immediately delete it from  your  system  and notify the sender. You
may  not  use  this message  or  any  part  of it  for any  purpose.
The   message   may  contain  information  that  is  confidential or
protected  by  law,  and  any  opinions  expressed  are those of the
individual    sender.  Internet  e-mail   guarantees   neither   the
confidentiality   nor  the  proper  receipt  of  the  message  sent.
If  the  addressee  of  this  message  does  not  consent to the use
of   internet    e-mail,    please    inform     us    inmmediately.
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