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From: Stephen Frost <sfrost@snowman.net>
To: Jeremy Palmer <JPalmer@linz.govt.nz>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: Does exclusive locking improve performance?
Date: Thu, 17 Feb 2011 00:18:35 -0500
Message-ID: <20110217051835.GU4116@tamriel.snowman.net> (raw)
In-Reply-To: <666FB8D75E95AE42965A0E76A5E5337E06D966C6FD@prdlsmmsg01.ad.linz.govt.nz>
References: <666FB8D75E95AE42965A0E76A5E5337E06D966C6FD@prdlsmmsg01.ad.linz.govt.nz>

* Jeremy Palmer (JPalmer@linz.govt.nz) wrote:
> In normal circumstances does locking a table in access exclusive mode improve insert, update and delete operation performance on that table.
> 
> Is MVCC disabled or somehow has less work to do?

MVCC certainly isn't disabled.  Does it have less work to do?  That's a
bit harder to say but my guess is "not so much that you'd actually be
able to notice it."..

	Thanks,

		Stephen

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