PostgreSQL as a DDBMS

Friends,
I would like to know if PostgreSQL can run as a Distributed Data Base
Management System. Is possible, throught PostgreSQL, to implement
horizontal partition, this is, to fragment tables horizontally?
For example, can I have a Data Base with 1 table, where it is
horizontally fragmented and each fragment is located on different places
(postgresql servers)? See that the Data Base is Unique, but the Data are
distributed throught a horizontal partitioning. How PostgreSQL could
help me to solve this problem?

Thanks,
Rodrigo.