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From: Pierre C <lists@peufeu.com>
To: Merlin Moncure <mmoncure@gmail.com>
To: Dave Crooke <dcrooke@gmail.com>
Cc: pgsql-performance@postgresql.org, Corin <wakathane@gmail.com>
Cc: Andy Colson <andy@squeakycode.net>
Subject: Re: mysql to postgresql, performance questions
Date: Mon, 22 Mar 2010 12:15:51 +0100
Message-ID: <op.u9yuwpqveorkce@localhost> (raw)
In-Reply-To: <b42b73151003220414x44e1d143x38f765a0bdab96f@mail.gmail.com>
References: <4BA23936.2030507@gmail.com>
	<4BA596D2.4050406@squeakycode.net>
	<b42b73151003211543w764cfb9bwe3666671310b875a@mail.gmail.com>
	<ca24673e1003211813jb05529ex33e02bcc304fbab0@mail.gmail.com>
	<ca24673e1003211814q68616580h71b4987ef8a7bae2@mail.gmail.com>
	<b42b73151003220414x44e1d143x38f765a0bdab96f@mail.gmail.com>

On Mon, 22 Mar 2010 12:14:51 +0100, Merlin Moncure <mmoncure@gmail.com>  
wrote:

> On Sun, Mar 21, 2010 at 9:14 PM, Dave Crooke <dcrooke@gmail.com> wrote:
>> Note however that Oracle offeres full transactionality and does in  
>> place row
>> updates. There is more than one way to do it.
>
> There's no free lunch.

MVCC : VACUUM
Oracle : Rollback Segments
MyISAM : no concurrency/transactions

It's all about which compromise suits you ;)

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