From: Tom Lane <tgl@sss.pgh.pa.us>
To: Bruce Momjian <bruce@momjian.us>
cc: PostgreSQL-documentation <pgsql-docs@postgresql.org>
Subject: Re: MVCC snapshot timing
In-reply-to: <20131111175737.GA15562@momjian.us>
References: <20131111175737.GA15562@momjian.us>
Comments: In-reply-to Bruce Momjian <bruce@momjian.us>
 message dated "Mon, 11 Nov 2013 12:57:37 -0500"
Date: Mon, 11 Nov 2013 15:39:45 -0500
Message-ID: <13024.1384202385@sss.pgh.pa.us>
Precedence: bulk
Sender: pgsql-docs-owner@postgresql.org

Bruce Momjian <bruce@momjian.us> writes:
> I received a private email report that our introductory MVCC
> documentation is unclear about when a snapshot is taken.  I have
> adjusted the wording in the attached patch to be less precise about
> snapshot timing. Snapshot timing is controlled by the session isolation
> level, which I don't think we want to cover in this introductory
> paragraph.

I'm not really seeing the point of s/transaction/session/ here.
The phrasing is a bit awkward and maybe could be improved, but I think you
should keep it referring to transactions.

			regards, tom lane


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