在ubuntu上安装postgresql 12

登陆到postgresql的官方网站，选择相应的版本：

采用下面的步骤安装：

# Create the file repository configuration:
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'

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

# Update the package lists:
sudo apt-get update

# Install the latest version of PostgreSQL.
# If you want a specific version, use 'postgresql-12' or similar instead of 'postgresql':
sudo apt-get install postgresql

安装完成后查询相关的包

postgres@scutech:~$ dpkg -l|grep postg
ii  pgdg-keyring                               2018.2                                           all          keyring for apt.postgresql.org
ii  postgresql                                 12+215.pgdg18.04+1                               all          object-relational SQL database (supported version)
ii  postgresql-12                              12.3-1.pgdg18.04+1                               amd64        object-relational SQL database, version 12 server
ii  postgresql-client-12                       12.3-1.pgdg18.04+1                               amd64        front-end programs for PostgreSQL 12
ii  postgresql-client-common                   215.pgdg18.04+1                                  all          manager for multiple PostgreSQL client versions
ii  postgresql-common                          215.pgdg18.04+1                                  all          PostgreSQL database-cluster manager
postgres@scutech:~$