How to change the template database collection coding

Question

I want build new postgreSQL database by:

CREATE DATABASE newdb
WITH OWNER = postgres
   ENCODING = \'UTF8\'
   TABLESPACE = pg_default
   LC_COLLATE = \'zh_C         


        

Answer 1

Tomas answer is correct, but it is missing an important detail (LC_CTYPE). Here is the full sequence for recreating template1 with the correct locale:

ALTER database template1 is_template=false;

DROP database template1;

CREATE DATABASE template1
WITH OWNER = postgres
   ENCODING = 'UTF8'
   TABLESPACE = pg_default
   LC_COLLATE = 'zh_CN.UTF-8'
   LC_CTYPE = 'zh_CN.UTF-8'
   CONNECTION LIMIT = -1
   TEMPLATE template0;

ALTER database template1 is_template=true;

then you can create new databases.