如何为Postgres psql设置时区？

Question

如何将psql的时区设置为默认值(US/Central)以外的其他值？这是我到目前为止所尝试的:

$ psql
psql (9.1.4, server 9.0.4)
...

$ psql -c 'show timezone'
  TimeZone  
------------
 US/Central

$ psql --set=timezone=US/Eastern -c 'show timezone'
  TimeZone  
------------
 US/Central

$ psql --variable=timezone=US/Eastern -c 'show timezone'
  TimeZone  
------------
 US/Central

编辑:我不想更改服务器时区,只是客户端.

编辑#2:我想要它以非交互模式.

Answer 1

psql (9.1.4)
Type "help" for help.

richardh=> show timezone;
 TimeZone 
----------
 GB
(1 row)

richardh=> set timezone='UTC';
SET
richardh=> show timezone;
 TimeZone 
----------
 UTC
(1 row)

richardh=> set timezone='US/Eastern';
SET
richardh=> show timezone;
  TimeZone  
------------
 US/Eastern
(1 row)

richardh=> set timezone='blah';
ERROR:  invalid value for parameter "TimeZone": "blah"

Answer 2

该psql的医生说:

-v assignment
--set=assignment
--variable=assignment
Perform a variable assignment, like the \set internal command. Note that 
you must separate name and value, if any, by an equal sign on the command line....

但是对于时区它似乎不起作用,也许是因为这样:

 These assignments are done during a very early stage of start-up, 
 so variables reserved for internal purposes might get overwritten later.

因此,似乎您必须在psql中使用SET命令,或者设置PGTZ环境变量:

PGTZ=PST8PDT psql -c 'show timezone'

当然,如果您可以为用户设置全局时区(不仅仅是针对此单独的psql实例),您可以在其.bashrc文件中设置该变量(如果在Linux中)

Answer 3

ALTER USER postgres SET timezone ='Asia/Tokyo';