Centos 安装 postgresql

添加 Yum 源

访问 https://www.postgresql.org/download 选择操作 postgresql 版本及对应的操作系统，从生成安装脚本中选择 rpm 源。

执行安装命令

# Install the repository RPM:
sudo yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm

# Install PostgreSQL:
sudo yum install postgresql13-server -y

# Optionally initialize the database and enable automatic start:
sudo /usr/pgsql-13/bin/postgresql-13-setup initdb
sudo systemctl enable postgresql-13
sudo systemctl start postgresql-13

设置环境变量

vim ~/.bashrc

export PATH=$PATH:/usr/pgsql-13/bin

登录

$ su postgres
$ psql

修改 ROOT 用户密码

postgres-# alter user postgres with password '123456';