关键词：centos install Postgresql
Configure YUM repository
vim /etc/yum.repos.d/CentOS-Base.repo
[base] and [updates] sections添加：
exclude=postgresql*
InstallPGDGRPM file
gohttp://yum.postgresql.organd find your correct RPM.
For example,to install Postgresql 9.3 on CentOS 6 64-bit:
打开http://yum.postgresql.org/repopackages.php#pg93后找到CentOS 6 - x86_64
then：
yum localinstall http://yum.postgresql.org/9.3/redhat/rhel-6-x86_64/pgdg-centos93-9.3-1.noarch.rpm
Install Postgresql
list available packages:
yum list postgres*
sql 9.3 server:
yum install postgresql93-server
yum install postgresql96-server
Other packages can be installed according to your needs.
配置
After installing the packages,a database needs to be initialized and configured.
Postgresql data directory（/var/lib/pgsql/9.3/data） contains all of the data files for the database.
[编辑]Initialize
The first command (only needed once) is to initialize the database：
service postgresql-9.3 initdb
正在初始化数据库： [确定]
或
/usr/pgsql-9.6/bin/postgresql96-setup initdb报错：
postgresql96-setupinitdb
FailedtogetD-Busconnection:Operationnotpermitted
you'rerunninganon-privilegedcontainer.
还是别在docker里面玩了！
dockerrun-d-e"container=docker"--privileged=true-v/sys/fs/cgroup:/sys/fs/cgroup--namepgsqlcentos/usr/sbin/init
dockerexec-itpgsql/bin/bash
[编辑]Startup
开机启动：
chkconfig postgresql-9.3 on
service postgresql-9.3 start
centos7:
systemctl enable postgresql-9.6.service
systemctl start postgresql-9.6.service
