Re: MVCC snapshot timing - Mailing list pgsql-docs

From Bruce Momjian
Subject Re: MVCC snapshot timing
Date
Msg-id 20131112021954.GD15562@momjian.us
Whole thread Raw
In response to Re: MVCC snapshot timing  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: MVCC snapshot timing  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-docs
On Mon, Nov 11, 2013 at 08:59:35PM -0500, Tom Lane wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> > On Mon, Nov 11, 2013 at 03:39:45PM -0500, Tom Lane wrote:
> >> I'm not really seeing the point of s/transaction/session/ here.
>
> > Well, the problem with the original wording is that we don't take a new
> > snapshot for every transaction in the default read-committed mode.
>
> We take at least one snapshot per transaction, in any mode.  Referring
> to sessions makes it even further away from being a useful concept.
>
> > Would you prefer I refer to statements, e.g.:
>
> 'Statement' might work.

OK, updated patch attached.  Is "statement" too vague here?  SQL
statement?  query?

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + Everyone has their own god. +

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