Source: http://blog.9cbs.net/jacklondon/archive/2004/08/25/84541.aspx
PostgreSQL and MySQL are a lot of Linux / UNIX pre-installed databases, and the redhat linux is installed with only PostgreSQL below by default.
New main function:
1. Support Windows local compilation (Win32 Native Server) Previous version of PostgreSQL needs to run on a Windows platform via an additional UNIX simulation software Cygwin. The new version of the software adds the operating system abstraction layer to run on Windows NT4 / 2000 / XP / 2003.
2. Enhance transaction function, support nested transactions (SavePoints Improve Transaction Control, NESTED Transaction,)
3. Enhance the error recovery function (Point-Time Recovery Increases Reliability)
