安装Postgresql 10

$ wget -q https://www.postgresql.org/media/keys/ACCC4CF8.asc -O - | sudo apt-key add -
$ sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ stretch-pgdg main" >> /etc/apt/sources.list.d/pgdg.list'
$ sudo apt-get update
$ sudo apt-get install postgresql postgresql-contrib

测试连接Postgresql

$ sudo su - postgres
$ psql
postgres-# \conninfo
postgres-# \q