The PostgreSQL project (http://www.postgresql.org) is a free software, distributed under liberal open source license. This DBMS is very stable and reliable, and has rich functionality.
Originally PostgreSQL was developed on Unix-based systems, therefore we recommend to instal it onto a Unix system. It runs under Windows and MacOS, too, but may have some minor issues in performance and stability.
Currently Cerebro supports PostgreSQL ver.9.0.
In order to install PostgreSQL, first, download the distribution pack from http://www.postgresql.org (alternatively - from: http://www.enterprisedb.com/products-services-training/pgdownload) or use your Linux package installation tool. Then follow the setup wizard included into the distribution pack.
There were some issues during the installation on Windows OS. The installer, for some reason, cannot finish the final step - initialize a new database. If you come across this issue, you can complete the installation manually, following the chapter: “Initializing Database Cluster”.