下载安装
yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm yum install -y postgresql12-server
初始化
/usr/pgsql-12/bin/postgresql-12-setup initdb
坑：
修改临时目录路径，并修改目录/tmp/pgsql的权限
vim /var/lib/pgsql/12/data/postgresql.conf unix_socket_directories = '/var/run/postgresql, /tmp/pgsql' chown postgres:postgres /tmp/pgsql
修改postgresql.conf
vim /var/lib/pgsql/12/data/postgresql.conf listen_addresses = '*' # what IP address(es) to listen on; unix_socket_directories = '/var/run/postgresql, /tmp/pgsql' # comma-separated list of directories
修改pg_hba.conf
vim /var/lib/pgsql/12/data/pg_hba.conf #host all all 127.0.0.1/32 ident host all all 0.0.0.0/0 md5
启动
systemctl enable postgresql-12 systemctl start postgresql-12
修改密码、授权
su - postgres psql ALTER USER postgres with encrypted password 'xxxxxxxxxxx'; GRANT ALL PRIVILEGES ON DATABASE postgres TO postgres \q
连接验证
psql -h 127.0.0.1 -p 5432 -d jcmms -U postgres