Josh Berkus wrote:


We are evaluating the options for having multiple databases vs. schemas on a
single database cluster for a custom grown app that we developed. Each app
installs same set of tables for each service. And the service could easily
be in thousands. so Is it better to have 1000 databases vs 1000 schemas in a
database cluster. What are the performance overhead of having multiple
databases vs. schemas (if any). I'm leaning towards having schemas rather
than databases but i would like to get others opinion on this. Appreciate
your reply.

No performance difference AFAIK. The real question is whether you have to have queries joining several "databases". If yes, use Schema; if no, use databases.

don't forget the pg_hba.conf :) You need 1000 declaration. Was a thread before, title: performance problem - 10.000 databases
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