array data type...

is there a basic type of array defined allready in postgres? See i want to
have a field in my database that can handle basically infinite (or just a
large cutoff point) of entries or aliases per say for a network database
project that I am working on.


Thanks,

     __________________________________________________________________
     *  Lorenzo J. Huerta                                             *
     *  Programming Assistant                                         *
     *  Computing & Networking Networking Architecture and Operations *
     *  New Mexico State University                                   *
     *  phone: (w)(505)646-2582 (h)(505) 521-8699 fax:(505) 646-8139  *
     *  e-mail: lorenzo@nmsu.edu                                      *
     *  Web Site: http://web.nmsu.edu/~ljhuerta                       *
     __________________________________________________________________