There aren't any modules installed to deal with this DB
 
There is a DBD module for PostgreSQL which allows you to interface this database via the ubiquitous DBI module. In addition to this, given the widespread use of this (DBI) interface (and module) there are many examples and references available in both online and print format.
 
You might want to start by looking here and here.
 

 
Ooohhh, Rob no beer function well without!