1、安装dblink
2、将一个表的字段更新至另一张表
UPDATE public.information
set public.information.creator_id=admaf.id
from
(
SELECT * FROM dblink('hostaddr=1127.0.0.1 port=54321 dbname=ad user=sys password=12345',
'select account,id from od_user')AS base(account text,id text)
) admaf
where public.information.creator_name=admaf.account
