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From: 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 07:14:51 -0400
Message-ID: <b42b73151003220414x44e1d143x38f765a0bdab96f@mail.gmail.com> (raw)
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	<ca24673e1003211814q68616580h71b4987ef8a7bae2@mail.gmail.com>

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.  If you do mvcc you have to maintain multiple
versions of the same row.

merlin

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