PostgreSQL: Is it better to use multiple databases with one schema each, or one database with multiple schemas?

Question

After this comment to one of my question, I\'m thinking if it is better using one database with X schemas or vice versa.

My situation: I\'m developing a web applicat

Answer 1

A number of schemas should be more lightweight than a number of databases, although I cannot find a reference which confirms this.

But if you really want to keep things very separate (instead of refactoring the web application so that a "customer" column is added to your tables), you may still want to use separate databases: I assert that you can more easily make restores of a particular customer's database this way -- without disturbing the other customers.