按步骤 执行命令即可：
yum install https://download.postgresql.org/pub/repos/yum/10/redhat/rhel-7-x86_64/pgdg-centos10-10-1.noarch.rpmyum install postgresql10yum install postgresql10-server- Optionally initialize the database and enable automatic start:
/usr/pgsql-10/bin/postgresql-10-setup initdb
systemctl enable postgresql-10
systemctl start postgresql-10
These distributions all include PostgreSQL by default. To install PostgreSQL from these repositories, use the yum command on RHEL 5,6 and 7, or dnf command on Fedora 24+:
yum install postgresql-server
dnf install postgresql-server
切换postgres用户进入数据库：
# su postgres
修改配置后重启服务：
systemctl restart postgresql-10