添加Postgres仓库源

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yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm

安装PostgreSQL

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yum install -y postgresql14-server

初始化PostgreSQL

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/usr/pgsql-14/bin/postgresql-14-setup initdb

本机添加PostgreSQL服务

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systemctl enable postgresql-14

开启PostgreSQL服务

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systemctl start postgresql-14