PostgreSQL: Temporarily disable connections

Question

I have a script in PostgreSQL which restores test database from dump every night. The database is accessed by app servers and processes with connection pool which keeps a fe

Answer 1

If you are connected in session with the DB that you want to dissallow connecting to, and to stay connected in the same session after you disallow connections, then use this :

UPDATE pg_database SET datallowconn = false WHERE datname = '_db_name_' ;

... which allows you to do stuff without any other connection happening until you re-enable

But if you use this, it must be from in a session in another DB :

ALTER DATABASE _db_name_ WITH ALLOW_CONNECTIONS false ;

(( i realise this is almost a summary of the answers above ))