https://www.postgresql.org/download/linux/ubuntu/

1 check Xenial16.04

2  创建文件  /etc/apt/sources.list.d/pgdg.list

添加 deb http://apt.postgresql.org/pub/repos/apt/ xenial-pgdg main

3 添加key

wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc |  sudo apt-key add -

4 update

sudo apt-get update

5 install

sudo apt-get install postgresql-9.6

 

6  connect to postgresql

sudo su - postgres  psql 7 查看登录用户信息

postgres-# \conninfo

8退出

postgres-# \q