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. 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