This section is from the "Practical PostgreSQL" book, by John Worsley and Joshua Drake. Also available from Amazon: Practical PostgreSQL.
PostgreSQL is included on the CD but you may want to visit the PostgreSQL site at http://www.postgresql.org to see if there is a newer version available. The source files for PostgreSQL are available for download at, among other mirrors: http://www.ca.postgresql.org/ftpsite/
 
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