set client_encoding to utf_8;
SET
1;
psql:cmd/euctw.sql:2: ERROR:  character 0xb9e6 of encoding "EUC_TW" has no equivalent in "UTF8"
select current_database();
 current_database 
------------------
 euctw
(1 �s)

show server_encoding;
 server_encoding 
-----------------
 EUC_TW
(1 �s)

show lc_messages;
    lc_messages     
--------------------
 Japanese_Japan.932
(1 �s)

set lc_messages to cht;
SET
select a;
psql:cmd/euctw.sql:7: 錯誤:  欄位"a"不存在
LINE 1: select a;
               ^
1;
psql:cmd/euctw.sql:8: 錯誤:  在"語法錯誤"附近發生 1
LINE 1: 1;
        ^
select * from a;
psql:cmd/euctw.sql:9: 錯誤:  relation "a"不存在
LINE 1: select * from a;
                      ^