On Dec 21, 2007, at 11:09 AM, Martijn van Oosterhout wrote:

The usual answer is use slony. You can use it to replicate the 8.0
server onto an 8.1 server. This may take weeks/months/years/whatever to synchronise. When the slave is up to date, you pull the plug on the 8.0
server and get everyone to use the 8.1 server... No downtime...


except he has large objects, which slony can't replicate.


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