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Re: Enabling Checksums

Greg Stark <stark@mit.edu>

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From: Greg Stark <stark@mit.edu>
To: Florian Pflug <fgp@phlo.org>
Cc: Bruce Momjian <bruce@momjian.us>, Ants Aasma <ants@cybertec.at>, Tom Lane <tgl@sss.pgh.pa.us>, Andres Freund <andres@2ndquadrant.com>, Jeff Davis <pgsql@j-davis.com>, Heikki Linnakangas <hlinnakangas@vmware.com>, Simon Riggs <simon@2ndquadrant.com>, Greg Smith <greg@2ndquadrant.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2013-04-17T15:58:10Z
Lists: pgsql-hackers 
On Wed, Apr 17, 2013 at 4:28 PM, Florian Pflug <fgp@phlo.org> wrote:
> Is there any way we can change the checksum algorithm in 9.4
> *without* breaking pg_upgrade?

Personally I think we're going to need a solution for page format
changes someday eventually....

What advantages are we postponing now to avoid it?

* 32-bit checksums?
* Being able to enable/disable checksums?

Anything else?


-- 
greg