i tested the last version version of PostgreSQL and for the same test : before : 40mn and now : 12mn :) faster than Oracle (exactly what i wanted :p ) thanks to everybody Will -----Message d'origine----- De : pgsql-performance-owner@xxxxxxxxxxxxxx [mailto:pgsql-performance-owner@xxxxxxxxxxxxxx]De la part de Albert Cervera Areny Envoyé : mardi 14 février 2006 17:07 À : pgsql-performance@xxxxxxxxxxxxxx Objet : Re: [PERFORM] copy and postgresql.conf 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@xxxxxxxxxxxxxx > [mailto:pgsql-performance-owner@xxxxxxxxxxxxxx]De la part de Albert > Cervera Areny > Envoyé : mardi 14 février 2006 12:38 > À : pgsql-performance@xxxxxxxxxxxxxx > 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 > > > > > > This e-mail is intended only for the above addressee. It may contain > > privileged information. If you are not the addressee you must not copy, > > distribute, disclose or use any of the information in it. If you have > > received it in error please delete it and immediately notify the sender. > > Security Notice: all e-mail, sent to or from this address, may be > > accessed by someone other than the recipient, for system management and > > security reasons. This access is controlled under Regulation of > > Investigatory Powers Act 2000, Lawful Business Practises. > > > > ---------------------------(end of broadcast)--------------------------- > > TIP 4: Have you searched our list archives? > > > > 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 > > ==================================================================== > ........................ 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. 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If you have > received it in error please delete it and immediately notify the sender. > Security Notice: all e-mail, sent to or from this address, may be > accessed by someone other than the recipient, for system management and > security reasons. This access is controlled under Regulation of > Investigatory Powers Act 2000, Lawful Business Practises. -- 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. 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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. ==================================================================== ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings This mail has originated outside your organization, either from an external partner or the Global Internet. Keep this in mind if you answer this message. This e-mail is intended only for the above addressee. It may contain privileged information. If you are not the addressee you must not copy, distribute, disclose or use any of the information in it. If you have received it in error please delete it and immediately notify the sender. 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