Re: synchronized snapshots

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От Simon Riggs
Тема Re: synchronized snapshots
Дата
Msg-id CA+U5nMKGf6CvamjE0+K-BqJ_LeFqts7a1x6W_Q6b8A8dD0h7Yg@mail.gmail.com
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Ответ на synchronized snapshots  (Joachim Wieland <joe@mcknight.de>)
Ответы Re: synchronized snapshots  (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>)
Re: synchronized snapshots  (Andres Freund <andres@anarazel.de>)
Re: synchronized snapshots  (PostgreSQL - Hans-Jürgen Schönig<postgres@cybertec.at>)
Re: synchronized snapshots  (Florian Weimer <fweimer@bfk.de>)
Re: synchronized snapshots  ("Kevin Grittner" <Kevin.Grittner@wicourts.gov>)
Список pgsql-hackers
On Mon, Aug 15, 2011 at 2:31 AM, Joachim Wieland <joe@mcknight.de> wrote:

> In short, this is how it works:
>
> SELECT pg_export_snapshot();
>  pg_export_snapshot
> --------------------
>  000003A1-1
> (1 row)
>
>
> (and then in a different session)
>
> BEGIN TRANSACTION ISOLATION LEVEL REPEATABLE READ (SNAPSHOT = '000003A1-1');

I don't see the need to change the BEGIN command, which is SQL
Standard. We don't normally do that.

If we have pg_export_snapshot() why not pg_import_snapshot() as well?

--
 Simon Riggs                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services


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