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From: Wolfgang Gehner <wgehner@infonoia.com>
To: pgsql-performance@postgresql.org
Subject: slow insert into very large table
Date: Thu, 01 Dec 2005 13:33:21 +0100
Message-ID: <438EED91.9080302@infonoia.com> (raw)

Hi there,

I need a simple but large table with several million records. I do batch 
inserts with JDBC. After the first million or so records,
the inserts degrade to become VERY slow (like 8 minutes vs initially 20 
secondes).

The table has no indices except PK while I do the inserts.

This is with PostgreSQL 8.0 final for WindowsXP on a Pentium 1.86 GHz, 
1GB Memory. HD is fast IDE.

I already have shared buffers already set to 25000.

I wonder what else I can do. Any ideas?

Kindest regards,

Wolfgang Gehner

-- 
Infonoia SA
7 rue de Berne
1211 Geneva 1
Tel: +41 22 9000 009
Fax: +41 22 9000 018
http://www.infonoia.com





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