Re: Block level concurrency during recovery

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Cc: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Block level concurrency during recovery
Date: 2008-10-23 17:32:06
Message-ID: 1224783126.27145.658.camel@ebony.2ndQuadrant
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On Thu, 2008-10-23 at 20:24 +0300, Heikki Linnakangas wrote:
> Simon Riggs wrote:
> > On Thu, 2008-10-23 at 19:21 +0300, Heikki Linnakangas wrote:
> >> You have other issues with those still, namely that
> >> table locks are not yet taken appropriately, so I'm not sure if this is
> >> worth worrying about until that's done.
> >
> > Please explain. If you know of a correctness issue, please say.
>
> Things like DROP TABLE need to take an AccessExclusiveLock, and you
> don't have that yet, no?

Oh right, I thought you meant something not already in the plan.

--
Simon Riggs www.2ndQuadrant.com
PostgreSQL Training, Services and Support

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