On Jan 10, 2008 1:38 AM, nalini <nalini(at)nic(dot)in> wrote:
> Dear All
> I have a application running at various locations with backend as postgres
> Slony is configured at all locations for replication at local site anda
> central server where each site has its own database instance.
> Now we wish to merge data collected from all the sites into one database
> instance to provide consolidated view
> database schema is same at all the places
> However as the application is still under development the schema maychange.
> however the change will happen at all the locations.
I would replicate each one to a different schema on the same server
and then use views to consolidate the data into what appears to be one
set. To make everything unique, you could prepend a unique id to each
identifier based on the schema it came from.
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