记录下，Postgres库创建中文字符集

postgres=# CREATE DATABASE mydb_gbk
postgres-#     ENCODING 'EUC_CN'
postgres-#     LC_COLLATE 'zh_CN' 
postgres-#     LC_CTYPE 'zh_CN'
postgres-#     TEMPLATE template0;
CREATE DATABASE
postgres=# \l
                                                 List of databases
   Name    |  Owner   | Encoding |   Collate   |    Ctype    | ICU Locale | Locale Provider |   Access privileges   
-----------+----------+----------+-------------+-------------+------------+-----------------+-----------------------
 mydb_gbk  | postgres | EUC_CN   | zh_CN       | zh_CN       |            | libc            | 
 postgres  | postgres | UTF8     | en_US.UTF-8 | en_US.UTF-8 |            | libc            | 
 template0 | postgres | UTF8     | en_US.UTF-8 | en_US.UTF-8 |            | libc            | =c/postgres          +
           |          |          |             |             |            |                 | postgres=CTc/postgres
 template1 | postgres | UTF8     | en_US.UTF-8 | en_US.UTF-8 |            | libc            | =c/postgres          +
           |          |          |             |             |            |                 | postgres=CTc/postgres
(4 rows)

前提系统必须支持zh_CN语言包,检查命令为:

[root@xifenfei yum.repos.d]# locale -a |grep zh_CN
zh_CN
zh_CN.gb18030
zh_CN.gbk
zh_CN.utf8

如果没有使用yum以下命令安装

yum groupinstall "fonts"
yum install glibc-langpack-zh.x86_64