Streaming replication [1] hanya tersedia untuk PostgreSQL > 9.0
Using streaming replication of PostgreSQL with pgpool-II, http://wiki.postgresql.org/images/0/04/Pgpool.pdf
Slony-I, http://slony.info/
Slony, still a usefull replication tool, http://www.dalibo.org/_media/pgconfeu_slony.pdf
Chapter 12, Replication &Upgrades, PostgreSQL 9 Admin Cookbook