Re: Enabling Checksums

On Mon, Mar 04, 2013 at 01:00:09PM -0800, Jeff Davis wrote:
> On Mon, 2013-03-04 at 22:27 +0200, Heikki Linnakangas wrote:
> > If you're serious enough about your data that you want checksums, you 
> > should be able to choose your filesystem.
> 
> I simply disagree. I am targeting my feature at casual users. They may
> not have a lot of data or a dedicated DBA, but the data they do have
> might be very important transactional data.
> 
> And right now, if they take a backup of their data, it will contain all
> of the corruption from the original. And since corruption is silent
> today, then they would probably think the backup is fine, and may delete
> the previous good backups.
> 
+1

There is no reasonable availability of checksum capable filesystems across
PostgreSQL's supported OSes. It really needs to be available in core.

Regards,
Ken