<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >LOAD</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REV="MADE" HREF="mailto:pgsql-docs@postgresql.org"><LINK REL="HOME" TITLE="PostgreSQL 8.0.11 Documentation" HREF="index.html"><LINK REL="UP" TITLE="SQL Commands" HREF="sql-commands.html"><LINK REL="PREVIOUS" TITLE="LISTEN" HREF="sql-listen.html"><LINK REL="NEXT" TITLE="LOCK" HREF="sql-lock.html"><LINK REL="STYLESHEET" TYPE="text/css" HREF="stylesheet.css"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"><META NAME="creation" CONTENT="2007-02-02T03:57:22"></HEAD ><BODY CLASS="REFENTRY" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="5" ALIGN="center" VALIGN="bottom" >PostgreSQL 8.0.11 Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="sql-listen.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="sql-listen.html" >Fast Backward</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="top" ><A HREF="sql-lock.html" >Fast Forward</A ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="top" ><A HREF="sql-lock.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SQL-LOAD" ></A >LOAD</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN43737" ></A ><H2 >Name</H2 >LOAD -- load or reload a shared library file</DIV ><A NAME="AEN43740" ></A ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN43742" ></A ><H2 >Synopsis</H2 ><PRE CLASS="SYNOPSIS" >LOAD '<TT CLASS="REPLACEABLE" ><I >filename</I ></TT >'</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="SQL-LOAD-DESCRIPTION" ></A ><H2 >Description</H2 ><P > This command loads a shared library file into the <SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN > server'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 server first loaded it. To make use of the shared library, function(s) in it need to be declared using the <A HREF="sql-createfunction.html" ><I >CREATE FUNCTION</I ></A > command. </P ><P > The file name is specified in the same way as for shared library names in <A HREF="sql-createfunction.html" ><I >CREATE FUNCTION</I ></A >; in particular, one may rely on a search path and automatic addition of the system's standard shared library file name extension. See <A HREF="xfunc-c.html" >Section 31.9</A > for more information on this topic. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="SQL-LOAD-COMPAT" ></A ><H2 >Compatibility</H2 ><P > <TT CLASS="COMMAND" >LOAD</TT > is a <SPAN CLASS="PRODUCTNAME" >PostgreSQL</SPAN > extension. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN43758" ></A ><H2 >See Also</H2 ><P > <A HREF="sql-createfunction.html" ><I >CREATE FUNCTION</I ></A > </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sql-listen.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sql-lock.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >LISTEN</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="sql-commands.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >LOCK</TD ></TR ></TABLE ></DIV ></BODY ></HTML >