psqlfix.txt

$ psql -U postgres
psql (9.4.1)
Type "help" for help.

postgres=# \l
                             List of databases
   Name    |  Owner   | Encoding | Collate | Ctype |   Access privileges   
-----------+----------+----------+---------+-------+-----------------------
 postgres  | postgres | LATIN1   | en_US   | en_US | 
 template0 | postgres | LATIN1   | en_US   | en_US | =c/postgres          +
           |          |          |         |       | postgres=CTc/postgres
 template1 | postgres | LATIN1   | en_US   | en_US | =c/postgres          +
           |          |          |         |       | postgres=CTc/postgres
(3 rows)
postgres=# update pg_database set datallowconn = TRUE where datname = 'template0';
UPDATE 1
postgres=# \c template0
You are now connected to database "template0" as user "postgres".
template0=# update pg_database set datistemplate = FALSE WHERE datname = 'template1';
UPDATE 1
template0=# DROP DATABASE template1;
DROP DATABASE
template0=# CREATE DATABASE template1 with template = template0 encoding = 'UTF8' lc_ctype = 'en_US.UTF-8' lc_collate = 'en_US.UTF-8';
CREATE DATABASE
template0=# update pg_database set datistemplate = true WHERE datname = 'template1';
UPDATE 1
template0=# update pg_database set datallowconn = false where datname = 'template0';
UPDATE 1
template0=# \l
                                  List of databases
   Name    |  Owner   | Encoding |   Collate   |    Ctype    |   Access privileges   
-----------+----------+----------+-------------+-------------+-----------------------
 postgres  | postgres | LATIN1   | en_US       | en_US       | 
 template0 | postgres | LATIN1   | en_US       | en_US       | =c/postgres          +
           |          |          |             |             | postgres=CTc/postgres
 template1 | postgres | UTF8     | en_US.UTF-8 | en_US.UTF-8 | 
(3 rows)