Chuck Davis <cjgunzel(at)gmail(dot)com> writes:
> I created a new, empty database and I want to test whether a table
> exists or not.
Are you sure the DB is in fact empty?
> The only thing I can think of is that the information_schema is
> actually for the cluster.
It is not.
> I have other databases in the cluster that
> do have an entities table.
I'm betting that you created such a table in template1, so that it's
getting cloned into new databases by CREATE DATABASE.
regards, tom lane