Re: synchronized snapshots
Simon Riggs <simon@2ndquadrant.com>
From: Simon Riggs <simon@2ndQuadrant.com>
To: Joachim Wieland <joe@mcknight.de>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2011-08-15T07:40:34Z
Lists: 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