The postgresql-docs package contains some additional documentation for PostgreSQL. Currently, this includes the main documentation in PDF format and source files for the PostgreSQL tutorial.
acquired package info from repodata DB: repodata/cf68b3f86214d90277d6ae027bf973ae4a24233f738f9859cfa2e6236b4980bf-primary.sqlite.bz2
PostgreSQL is an advanced Object-Relational database management system (DBMS). The base postgresql package contains the client programs that you'll need to access a PostgreSQL DBMS server, as well as HTML documentation for the whole system. These client programs can be located on the same machine as the PostgreSQL server, or on a remote machine that accesses a PostgreSQL server over a network connection. The PostgreSQL server can be found in the postgresql-server sub-package.