redhat man page for load

LOAD(7) 							   SQL Commands 							   LOAD(7)

NAME
       LOAD - load or reload a shared library file

SYNOPSIS
       LOAD 'filename'

DESCRIPTION
       Loads a shared library file into the PostgreSQL backend's address space. If the file had been loaded previously, it is first unloaded. This
       command is primarily useful to unload and reload a shared library file that has been changed since the backend first loaded it. To make use
       of the shared library, function(s) in it need to be declared using the CREATE FUNCTION [create_function(7)] command.

       The file name is specified in the same way as for shared library names in CREATE FUNCTION [create_function(7)]; in particular, one may rely
       on a search path and automatic addition of the system's standard shared library file name extension. See the Programmer's  Guide  for  more
       detail.

COMPATIBILITY
       LOAD is a PostgreSQL extension.

SEE ALSO
       CREATE FUNCTION [create_function(7)], PostgreSQL Programmer's Guide

SQL - Language Statements					    2002-11-22								   LOAD(7)