网关务器复制~$ yum install https://download.postgresql.org/pub/repos/yum/9.5/redhat/rhel-7-x86_64/pgdg-centos95-9.5-3.noarch.rpm  ~$ yum install postgresql95  ~$ yum install postgresql95-server  1.2.3.

(责任编辑：系统运维)