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diff --git a/doc/src/sgml/html/rules-views.html b/doc/src/sgml/html/rules-views.html index cc6e02f..b73115e 100644 --- a/doc/src/sgml/html/rules-views.html +++ b/doc/src/sgml/html/rules-views.html @@ -1,5 +1,5 @@ <?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>41.2. Views and the Rule System</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="querytree.html" title="41.1. The Query Tree" /><link rel="next" href="rules-materializedviews.html" title="41.3. Materialized Views" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">41.2. Views and the Rule System</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="querytree.html" title="41.1. The Query Tree">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="rules.html" title="Chapter 41. The Rule System">Up</a></td><th width="60%" align="center">Chapter 41. The Rule System</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 16.2 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="rules-materializedviews.html" title="41.3. Materialized Views">Next</a></td></tr></table><hr /></div><div class="sect1" id="RULES-VIEWS"><div class="titlepage"><div><div><h2 class="title" style="clear: both">41.2. Views and the Rule System <a href="#RULES-VIEWS" class="id_link">#</a></h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="rules-views.html#RULES-SELECT">41.2.1. How <code class="command">SELECT</code> Rules Work</a></span></dt><dt><span class="sect2"><a href="rules-views.html#RULES-VIEWS-NON-SELECT">41.2.2. View Rules in Non-<code class="command">SELECT</code> Statements</a></span></dt><dt><span class="sect2"><a href="rules-views.html#RULES-VIEWS-POWER">41.2.3. The Power of Views in <span class="productname">PostgreSQL</span></a></span></dt><dt><span class="sect2"><a href="rules-views.html#RULES-VIEWS-UPDATE">41.2.4. Updating a View</a></span></dt></dl></div><a id="id-1.8.6.7.2" class="indexterm"></a><a id="id-1.8.6.7.3" 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>41.2. Views and the Rule System</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="querytree.html" title="41.1. The Query Tree" /><link rel="next" href="rules-materializedviews.html" title="41.3. Materialized Views" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">41.2. Views and the Rule System</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="querytree.html" title="41.1. The Query Tree">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="rules.html" title="Chapter 41. The Rule System">Up</a></td><th width="60%" align="center">Chapter 41. The Rule System</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 16.3 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="rules-materializedviews.html" title="41.3. Materialized Views">Next</a></td></tr></table><hr /></div><div class="sect1" id="RULES-VIEWS"><div class="titlepage"><div><div><h2 class="title" style="clear: both">41.2. Views and the Rule System <a href="#RULES-VIEWS" class="id_link">#</a></h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="rules-views.html#RULES-SELECT">41.2.1. How <code class="command">SELECT</code> Rules Work</a></span></dt><dt><span class="sect2"><a href="rules-views.html#RULES-VIEWS-NON-SELECT">41.2.2. View Rules in Non-<code class="command">SELECT</code> Statements</a></span></dt><dt><span class="sect2"><a href="rules-views.html#RULES-VIEWS-POWER">41.2.3. The Power of Views in <span class="productname">PostgreSQL</span></a></span></dt><dt><span class="sect2"><a href="rules-views.html#RULES-VIEWS-UPDATE">41.2.4. Updating a View</a></span></dt></dl></div><a id="id-1.8.6.7.2" class="indexterm"></a><a id="id-1.8.6.7.3" class="indexterm"></a><p> Views in <span class="productname">PostgreSQL</span> are implemented using the rule system. A view is basically an empty table (having no actual storage) with an <code class="literal">ON SELECT DO INSTEAD</code> rule. @@ -507,4 +507,4 @@ SELECT t1.a, t2.b, t1.ctid FROM t1, t2 WHERE t1.a = t2.a; triggers for the view, and the rewriter cannot automatically rewrite the query as an update on the underlying base relation, an error will be thrown because the executor cannot update a view as such. -</p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="querytree.html" title="41.1. The Query Tree">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="rules.html" title="Chapter 41. The Rule System">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="rules-materializedviews.html" title="41.3. Materialized Views">Next</a></td></tr><tr><td width="40%" align="left" valign="top">41.1. The Query Tree </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 16.2 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 41.3. Materialized Views</td></tr></table></div></body></html>
\ No newline at end of file +</p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="querytree.html" title="41.1. The Query Tree">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="rules.html" title="Chapter 41. The Rule System">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="rules-materializedviews.html" title="41.3. Materialized Views">Next</a></td></tr><tr><td width="40%" align="left" valign="top">41.1. The Query Tree </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 16.3 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 41.3. Materialized Views</td></tr></table></div></body></html>
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