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 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>38.7. Function Volatility Categories</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="xfunc-overload.html" title="38.6. Function Overloading" /><link rel="next" href="xfunc-pl.html" title="38.8. Procedural Language Functions" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">38.7. Function Volatility Categories</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="xfunc-overload.html" title="38.6. Function Overloading">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="extend.html" title="Chapter 38. Extending SQL">Up</a></td><th width="60%" align="center">Chapter 38. Extending <acronym class="acronym">SQL</acronym></th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 15.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="xfunc-pl.html" title="38.8. Procedural Language Functions">Next</a></td></tr></table><hr /></div><div class="sect1" id="XFUNC-VOLATILITY"><div class="titlepage"><div><div><h2 class="title" style="clear: both">38.7. Function Volatility Categories</h2></div></div></div><a id="id-1.8.3.10.2" class="indexterm"></a><a id="id-1.8.3.10.3" class="indexterm"></a><a id="id-1.8.3.10.4" class="indexterm"></a><a id="id-1.8.3.10.5" class="indexterm"></a><p>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>38.7. Function Volatility Categories</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="xfunc-overload.html" title="38.6. Function Overloading" /><link rel="next" href="xfunc-pl.html" title="38.8. Procedural Language Functions" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">38.7. Function Volatility Categories</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="xfunc-overload.html" title="38.6. Function Overloading">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="extend.html" title="Chapter 38. Extending SQL">Up</a></td><th width="60%" align="center">Chapter 38. Extending <acronym class="acronym">SQL</acronym></th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 15.6 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="xfunc-pl.html" title="38.8. Procedural Language Functions">Next</a></td></tr></table><hr /></div><div class="sect1" id="XFUNC-VOLATILITY"><div class="titlepage"><div><div><h2 class="title" style="clear: both">38.7. Function Volatility Categories</h2></div></div></div><a id="id-1.8.3.10.2" class="indexterm"></a><a id="id-1.8.3.10.3" class="indexterm"></a><a id="id-1.8.3.10.4" class="indexterm"></a><a id="id-1.8.3.10.5" class="indexterm"></a><p>
     Every function has a <em class="firstterm">volatility</em> classification, with
     the possibilities being <code class="literal">VOLATILE</code>, <code class="literal">STABLE</code>, or
     <code class="literal">IMMUTABLE</code>.  <code class="literal">VOLATILE</code> is the default if the
@@ -104,4 +104,4 @@
      If you do that, you will find that the <code class="literal">STABLE</code> or
      <code class="literal">IMMUTABLE</code> function does not notice the database changes
      applied by the called function, since they are hidden from its snapshot.)
-    </p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="xfunc-overload.html" title="38.6. Function Overloading">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="extend.html" title="Chapter 38. Extending SQL">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="xfunc-pl.html" title="38.8. Procedural Language Functions">Next</a></td></tr><tr><td width="40%" align="left" valign="top">38.6. Function Overloading </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.5 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 38.8. Procedural Language Functions</td></tr></table></div></body></html>
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+    </p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="xfunc-overload.html" title="38.6. Function Overloading">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="extend.html" title="Chapter 38. Extending SQL">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="xfunc-pl.html" title="38.8. Procedural Language Functions">Next</a></td></tr><tr><td width="40%" align="left" valign="top">38.6. Function Overloading </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.6 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 38.8. Procedural Language Functions</td></tr></table></div></body></html>
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