How to create a user in postgreSQL so that he does not see other databases, other users?

Question

PostgreSQL

Good afternoon!
How to create a user in postgreSQL so that he does not see other databases, other users?
I do it in the standard way:

postgres=# CREATE DATABASE test_database;
CREATE DATABASE

postgres=# CREATE USER test_user WITH password 'qwerty';
CREATE ROLE

postgres=# GRANT ALL privileges ON DATABASE test_database TO test_user;
GRANT

But through this user all other tables are visible. What did I screw up?
Thank you!

Answer 1

here is a good example
, but in general here you can look for
an example in the TS one to one with eax.me =)