postgresql psql查看/修改 服務端與客戶端的編碼

查看編碼 (show)

test=# \encoding 
SQL_ASCII
test=# show client_encoding;
 client_encoding 
-----------------
 SQL_ASCII
(1 row)

test=# show server_encoding;
 server_encoding 
-----------------
 UTF8
(1 row)

臨時設置編碼 (set)

test=# set client_encoding = 'UTF8';
SET
test=# \encoding 
UTF8
test=# show client_encoding;
 client_encoding 
-----------------
 UTF8
(1 row)

一勞永逸的變爲utf8如下：

檢測本地默認字符集

$ locale
LANG=en_HK.UTF-8
LANGUAGE=zh_CN:zh:en_US:en
LC_CTYPE="C.UTF-8"
LC_NUMERIC="C.UTF-8"
LC_TIME="C.UTF-8"
LC_COLLATE="C.UTF-8"
LC_MONETARY="C.UTF-8"
LC_MESSAGES="C.UTF-8"
LC_PAPER="C.UTF-8"
LC_NAME="C.UTF-8"
LC_ADDRESS="C.UTF-8"
LC_TELEPHONE="C.UTF-8"
LC_MEASUREMENT="C.UTF-8"
LC_IDENTIFICATION="C.UTF-8"
LC_ALL=C.UTF-8

修改本地的.bashrc 文件，追加下邊三行：

export LANG="C.UTF-8"
export LC_ALL="C.UTF-8"
export LANGUAGE=

記得 source .bashrc 文件，再次執行locale：

$ locale
LANG=C.UTF-8
LANGUAGE=
LC_CTYPE="C.UTF-8"
LC_NUMERIC="C.UTF-8"
LC_TIME="C.UTF-8"
LC_COLLATE="C.UTF-8"
LC_MONETARY="C.UTF-8"
LC_MESSAGES="C.UTF-8"
LC_PAPER="C.UTF-8"
LC_NAME="C.UTF-8"
LC_ADDRESS="C.UTF-8"
LC_TELEPHONE="C.UTF-8"
LC_MEASUREMENT="C.UTF-8"
LC_IDENTIFICATION="C.UTF-8"
LC_ALL=C.UTF-8

psql 鏈接數據庫查看字符集：

test=# show client_encoding;
 client_encoding 
-----------------
 UTF8
(1 row)

一切都搞定了！