Excerpts from Robert Haas's message of mié nov 17 17:51:37 -0300 2010:
> On Wed, Nov 17, 2010 at 3:35 PM, Andres Freund <andres@anarazel.de> wrote:
> > How can you get a buffer which was no written out *at all*? Do you want to
> > force all such pages to stay in shared_buffers? That sounds quite a bit more
> > complicated than what you proposed...
>
> Oh, you're right. We always have to write buffers before kicking them
> out of shared_buffers, but if we don't fsync them we have no guarantee
> they're actually on disk.
You could just open all the segments and fsync them.
--
Álvaro Herrera <alvherre@commandprompt.com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support