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Re: Data Warehouse Reevaluation - MySQL vs Postgres --

From: Markus Schaber <schabios(at)logi-track(dot)com>
To: PostgreSQL Performance List <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Data Warehouse Reevaluation - MySQL vs Postgres --
Date: 2004-09-14 12:14:52
Message-ID: 20040914141452.002e5d4e@kingfisher.intern.logi-track.com (view raw or flat)
Thread:
Lists: pgsql-performance
Hi, Mischa,

On Sun, 12 Sep 2004 20:47:17 GMT
Mischa Sandberg <ischamay(dot)andbergsay(at)activestateway(dot)com> wrote:

> On the other hand, if you do warehouse-style loading (Insert, or PG 
> COPY, into a temp table; and then 'upsert' into the perm table), I can 
> guarantee 2500 inserts/sec is no problem.

As we can forsee that we'll have similar insert rates to cope with in
the not-so-far future, what do you mean with 'upsert'? Do you mean a
stored procedure that iterates over the temp table?

Generally, what is the fastest way for doing bulk processing of 
update-if-primary-key-matches-and-insert-otherwise operations?

Thanks,
Markus Schaber

-- 
markus schaber | dipl. informatiker
logi-track ag | rennweg 14-16 | ch 8001 zürich
phone +41-43-888 62 52 | fax +41-43-888 62 53
mailto:schabios(at)logi-track(dot)com | www.logi-track.com

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