1、下载rpm包
yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm
2、关闭selinux
--临时关闭
setenforce 0 --重启系统后还会开启
--永久关闭
vim
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