一、基本信息
官网
下载 PostgreSql .org/download/
中文社区
中文网
易百教程
二、系统及工具
1、系统版本 Centos7.5 CentOS-7-x86_64-Minimal-1804
2、VMware 版本：VMware Workstation Pro15
3、工具：xshell5
4、PostgreSql： postgresql-11.4.tar.gz
三、安装部署
1、安装基本工具
[ root @localhost ~]# yum install -y vim lrzsz tree wget gcc gcc-c++ readline-devel zlib-devel
2、创建目录，并进入指定目录
[root@localhost ~]# mkdir /opt/postgresql
[root@localhost ~]# cd /opt/postgresql
3、下载
[root@localhost postgresql]# wget
4、解压、查看目录
[root@localhost postgresql]# tar zxvf postgresql-11.4.tar.gz
5、编译
[root@localhost postgresql-11.4]# ./configure –prefix=/usr/local/postgresql
6、安装
[root@localhost postgresql-11.4]# make && make install
7、进入安装后的目录，查看目录结构
[root@localhost ~]# cd /usr/local/postgresql/
8、创建目录 data、log
[root@localhost postgresql]# mkdir /usr/local/postgresql/data
[root@localhost postgresql]# mkdir /usr/local/postgresql/log
9、加入系统环境变量
[root@localhost ~]# vim /etc/profile
在最后写入如下内容
PGHOME=/usr/local/postgresql
export PGHOME
PGDATA=/usr/local/postgresql/data
export PGDATA
PATH=$PATH:$HOME/.local/bin:$HOME/bin:$PGHOME/bin
export PATH
使配置文件生效
[root@localhost ~]# source /etc/profile
10、增加用户 postgres 并赋权
[root@localhost ~]# adduser postgres
[root@localhost ~]# chown -R postgres:root /usr/local/postgresql/
11、初始化数据库
切换用户 postgres
[root@localhost ~]# su postgres
[postgres@localhost root]$ /usr/local/postgresql/bin/initdb -D /usr/local/postgresql/data/
注意：
不能在 root 用户下初始数据库，否则会报错
[root@localhost ~]# /usr/local/postgresql/bin/initdb -D /usr/local/postgresql/data/
initdb: cannot be run as root
Please log in (using, e.g., “su”) as the (unprivileged) user that will
own the server process.
12、编辑配置文件
[postgres@localhost ~]# vim /usr/local/postgresql/data/postgresql.conf
listen_addresses = ‘*’
port = 5432
[postgres@localhost ~]$ vim /usr/local/postgresql/data/pg_hba.conf
说明：
TYPE ：pg的连接方式，local：本地unix套接字，host：tcp/ip连接
DATABASE：指定数据库
USER：指定数据库用户
ADDRESS：ip地址，可以定义某台主机或某个网段，32代表检查整个ip地址，相当于固定的ip，24代表只检查前三位，最后一 位是0~255之间的任何一个
METHOD：认证方式，常用的有ident，md5，password，trust，reject。
md5是常用的密码认证方式。
password是以明文密码传送给数据库，建议不要在生产环境中使用。
trust是只要知道数据库用户名就能登录，建议不要在生产环境中使用。
reject是拒绝认证。
13、启动服务
[postgres@localhost ~]$ pg_ctl start -l /usr/local/postgresql/log/pg_server.log
13.1、查看端口信息
ss -tnl
14、查看版本
[postgres@localhost ~]$ psql -V
psql (PostgreSQL) 11.4
15、登录数据库
[postgres@localhost ~]$ psql -U postgres -d postgres
第三方工具测试连接
注意：生产环境，一定要修改密码验证方式
至此，Centos7 安装 PostgreSql 安装部署完毕！
####################################################
如果有安装报错，
装postgreSQL出现configure:error:readline library not found解决方法
需要安装：
yum -y install -y readline-devel
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