Re: Simplifying wal_sync_method

Alvaro Herrera wrote:
> On Mon, Aug 08, 2005 at 05:38:59PM -0400, Bruce Momjian wrote:
> > Marko Kreen wrote:
> > > On Mon, Aug 08, 2005 at 03:56:39PM -0400, Bruce Momjian wrote:
> > > > Currently, here are the options available for wal_sync_method:
> > > > 
> > > >     #wal_sync_method = fsync        # the default varies across platforms:
> > > >                                     # fsync, fdatasync, fsync_writethrough,
> > > >                                     # open_sync, open_datasync
> > > 
> > > On same topic:
> > > 
> > >   http://archives.postgresql.org/pgsql-general/2005-07/msg00811.php
> > > 
> > > Why does win32 PostgreSQL allow data corruption by default?
> > 
> > It behaves the same on Unix as Win32, and if you have battery-backed
> > cache, you don't need writethrough, so we don't have it as default.  I
> > am going to write a section in the manual for 8.1 about these
> > reliability issues.
> 
> I think we should offer the reliable option by default, and mention the
> fast option for those who have battery-backed cache in the manual.

But only on Win32?

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