Re: pg_upgrade: downgradebility - Mailing list pgsql-hackers

From Andrew Sullivan
Subject Re: pg_upgrade: downgradebility
Date
Msg-id 20060920110936.GC18219@phlogiston.dyndns.org
Whole thread Raw
In response to pg_upgrade: downgradebility  (Zdenek Kotala <Zdenek.Kotala@Sun.COM>)
Responses Re: pg_upgrade: downgradebility  (Gavin Sherry <swm@linuxworld.com.au>)
List pgsql-hackers
On Wed, Sep 20, 2006 at 12:54:14PM +0200, Zdenek Kotala wrote:
> My first question is how important is downgrade for You and Your customers?
> 
> 
> And second is how to verify that downgrade is possible?

Well, one way to do it is to set up a Slony replica using the older
version of the software.  So, if you've upgraded to 8.1.x, you
replicate to an old 8.0.x back end as well.  If 8.1 doesn't work for
you, you just MOVE everything back to the 8.0.x back end, and you're
golden.

A

-- 
Andrew Sullivan  | ajs@crankycanuck.ca
Information security isn't a technological problem.  It's an economics
problem.    --Bruce Schneier


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