Re: Upgrading Database: need to dump and restore?

On Wed, Jun 3, 2009 at 8:14 PM, Bill Moran <wmoran(at)potentialtech(dot)com> wrote:
> In response to "Carlos Oliva" <carlos(at)pbsinet(dot)com>:
>
>> Woudl it be possible to keep the current postgresql version running in a
>> different port, install a new version of postgresql, and copy the data from
>> one version to the other while both versions are running?  This might give
>> us time to copy the tables and databases one at a time and reconfigure the
>> database access for parts of the application until we complete the migration
>> to the new version.
>
> Your best bet would be to install Slony-I.  One of the main design goals
> for Slony is to allow interruption-free upgrades.

I don't think it is "easy", but will do if you need to synchronize
data before switching.

--
GJ