postgresql

PostgreSQL is an advanced Object-Relational database management system

(DBMS) that supports almost all SQL constructs (including

transactions, subselects and user-defined types and functions). The

postgresql package includes the client programs and libraries that

you'll need to access a PostgreSQL DBMS server. These PostgreSQL

client programs are programs that directly manipulate the internal

structure of PostgreSQL databases on a PostgreSQL server. These client

programs can be located on the same machine with the PostgreSQL

server, or may be on a remote machine which accesses a PostgreSQL

server over a network connection. This package contains the command-line

utilities for managing PostgreSQL databases on a PostgreSQL server.

If you want to manipulate a PostgreSQL database on a local or remote PostgreSQL

server, you need this package. You also need to install this package

if you're installing the postgresql93-server package.