What is “pgpool-ii” Package?

PostgreSQL connection pool server
For more details: http://www.pgpool.net/mediawiki/index.php/Main_Page

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install pgpool-ii.

  brew install pgpool-ii

Now, use pgpool-ii!