Download of PostgreSQL Database Server 9.2 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The application belongs to System Tools. We recommend checking the downloaded files with any free antivirus.
From the developer:
PostgreSQL is a powerful, open source relational database system. It has more than 15 years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness. It runs on all major operating systems, including Linux, UNIX (AIX, BSD, HP-UX, SGI IRIX, OS X, Solaris, SunOS, Tru64), BeOS, and Windows. PostgreSQL Database server already embedded a useful GUI - PGadmin.
You may want to check out more software for Mac, such as Navicat for PostgreSQL, PostgreSQL or Outlook Mac Database Recovery, which might be similar to PostgreSQL Database Server.
Database Tools
Database Tools