Re: Improving speed of copy

From: Mark Kirkwood <markir(at)paradise(dot)net(dot)nz>
To: shridhar_daithankar(at)persistent(dot)co(dot)in
Cc: pgsql-hackers(at)postgresql(dot)org, jharris(at)nightstarcorporation(dot)com
Subject: Re: Improving speed of copy
Date: 2002-10-02 07:37:04
Message-ID: 3D9AA220.7000506@paradise.net.nz
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>Have you tried this with Oracle or similar commercial database?

I have timed COPY/LOAD times for Postgresql/Mysql/Oracle/Db2 -

the rough comparison is :

Db2 and Mysql fastest (Db2 slightly faster)
Oracle approx twice as slow as Db2
Postgresql about 3.5-4 times slower than Db2

However Postgresql can sometimes create indexes faster than Mysql ....
so that the total time of COPY + CREATE INDEX can be smaller for
Postgresql than Mysql.

Oracle an Db2 seemed similarish to Postgresql with respect to CREATE INDEX

regards

Mark

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