On Mon, May 27, 2013 at 03:06:13PM -0400, Alvaro Herrera wrote:
> Bruce Momjian wrote:
>
> > OK, I have added a section to the TODO list for this:
> >
> > Desired changes that would prevent upgrades with pg_upgrade
> >
> > 32-bit page checksums
> >
> > Are there any others?
>
> I would have each data segment be self-identifying, i.e. have a magic
> number at the beginning of the file and the relation OID, some fork
> identification and the segment number somewhere -- probably the special
> space of the first page.
Is this something we want on the TODO? I was not clear how to do with
without making the first page format special or wasting space on all the
other pages.
-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
http://enterprisedb.com
+ It's impossible for everything to be true. +