postgresql-server

The postgresql93-server package includes the programs needed to create

and run a PostgreSQL server, which will in turn allow you to create

and maintain PostgreSQL databases. 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). You should install

postgresql93-server if you want to create and maintain your own

PostgreSQL databases and/or your own PostgreSQL server. You also need

to install the postgresql package.