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<title>LOAD</title>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en">
<a name="sql-load"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2>Name</h2>
<p>LOAD — load or reload a shared library file</p>
</div>
<a name="id777875"></a><div class="refsynopsisdiv">
<h2>Synopsis</h2>
<pre class="synopsis">LOAD '<em class="replaceable"><code>filename</code></em>'</pre>
</div>
<div class="refsect1" lang="en">
<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">CREATE FUNCTION</a>
command.
</p>
<p> The file name is specified in the same way as for shared library
names in <a href="sql-createfunction.html">CREATE FUNCTION</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" title="32.9.C-Language Functions">Section32.9, “C-Language Functions”</a> for
more information on this topic.
</p>
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<div class="refsect1" lang="en">
<a name="sql-load-compat"></a><h2>Compatibility</h2>
<p> <code class="command">LOAD</code> is a <span class="productname">PostgreSQL</span>
extension.
</p>
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<div class="refsect1" lang="en">
<a name="id777983"></a><h2>See Also</h2>
<p> <a href="sql-createfunction.html">CREATE FUNCTION</a>
</p>
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