This directory contains the contribution functions or tools.

 - contrib -|
            |- apache_logging -
	    |   Getting Apache to log to PostgreSQL
	    |   	by Terry Mackintosh <terry@terrym.com>
            |- array -
	    |   Array iterator functions
	    |   	by Massimo Dal Zotto <dz@cs.unitn.it>
            |- datetime -
	    |   Date & time functions
	    |   	by Sergio Lenzi <lenzi@bsi.com.br>
            |- earthdistance -
	    |   Operator for computing earth distance for two points
	    |   	by Hal Snyder <hal@vailsys.com>
            |- fulltextindex -
	    |   Full text indexing using triggers
	    |   	by Maarten Boekhold <maartenb@dutepp0.et.tudelft.nl>
            |- int8 -
	    |   64-bit integer arithmetic for Postgres
	    |   	by Thomas G. Lockhart <Thomas.Lockhart@jpl.nasa.gov>
            |- ip_and_mac -
	    |   PostgreSQL type extensions for IP and MAC addresses
	    |   	by Tom Ivar Helbekkmo <tih@Hamartun.Priv.NO>
            |- linux -
	    |   Start postgres back end system
	    |   	by Thomas Lockhart <lockhart@alumni.caltech.edu>
            |- lo -
	    |   Large Object maintenance
	    |   	by Peter Mount <peter@retep.org.uk> 
            |- miscutil -
	    |   Postgres assert checking and various utility functions
	    |   	by Dal Zotto <dz@cs.unitn.it>
            |- mSQL-interface -
	    |   mSQL API translation library
	    |   	by Aldrin Leal <aldrin@americasnet.com>
            |- noupdate -
	    |   trigger to prevent updates on single columns
	    |   	by unknown
            |- pginterface -
	    |   A crude C/4GL
	    |   	by Bruce Momjian <root@candle.pha.pa.us>
            |- sequence -
	    |   Set a new sequence value
	    |   	by Massimo Dal Zotto <dz@cs.unitn.it>
            |- soundex -
	    |   Prototype for soundex function
            |- spi -
	    |   A general trigger function autoinc() and so on.
            |- string -
	    |   New input/output conversion routines for strings
	    |   	by Massimo Dal Zotto <dz@cs.unitn.it>
            |- unixdate -
	    |   Conversions from integer to datetime
	    |   	by Thomas Lockhart <lockhart@alumni.caltech.edu>
            |- userlock -
	    |   User locks
	    |   	by Massimo Dal Zotto <dz@cs.unitn.it>