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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>53.45. pg_rewrite</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="catalog-pg-replication-origin.html" title="53.44. pg_replication_origin" /><link rel="next" href="catalog-pg-seclabel.html" title="53.46. pg_seclabel" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">53.45. <code class="structname">pg_rewrite</code></th></tr><tr><td width="10%" align="left"><a accesskey="p" href="catalog-pg-replication-origin.html" title="53.44. pg_replication_origin">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="catalogs.html" title="Chapter 53. System Catalogs">Up</a></td><th width="60%" align="center">Chapter 53. System Catalogs</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="catalog-pg-seclabel.html" title="53.46. pg_seclabel">Next</a></td></tr></table><hr /></div><div class="sect1" id="CATALOG-PG-REWRITE"><div class="titlepage"><div><div><h2 class="title" style="clear: both">53.45. <code class="structname">pg_rewrite</code></h2></div></div></div><a id="id-1.10.4.47.2" class="indexterm"></a><p>
+ The catalog <code class="structname">pg_rewrite</code> stores rewrite rules for tables and views.
+ </p><div class="table" id="id-1.10.4.47.4"><p class="title"><strong>Table 53.45. <code class="structname">pg_rewrite</code> Columns</strong></p><div class="table-contents"><table class="table" summary="pg_rewrite Columns" border="1"><colgroup><col /></colgroup><thead><tr><th class="catalog_table_entry"><p class="column_definition">
+ Column Type
+ </p>
+ <p>
+ Description
+ </p></th></tr></thead><tbody><tr><td class="catalog_table_entry"><p class="column_definition">
+ <code class="structfield">oid</code> <code class="type">oid</code>
+ </p>
+ <p>
+ Row identifier
+ </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
+ <code class="structfield">rulename</code> <code class="type">name</code>
+ </p>
+ <p>
+ Rule name
+ </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
+ <code class="structfield">ev_class</code> <code class="type">oid</code>
+ (references <a class="link" href="catalog-pg-class.html" title="53.11. pg_class"><code class="structname">pg_class</code></a>.<code class="structfield">oid</code>)
+ </p>
+ <p>
+ The table this rule is for
+ </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
+ <code class="structfield">ev_type</code> <code class="type">char</code>
+ </p>
+ <p>
+ Event type that the rule is for: 1 = <a class="xref" href="sql-select.html" title="SELECT"><span class="refentrytitle">SELECT</span></a>, 2 =
+ <a class="xref" href="sql-update.html" title="UPDATE"><span class="refentrytitle">UPDATE</span></a>, 3 = <a class="xref" href="sql-insert.html" title="INSERT"><span class="refentrytitle">INSERT</span></a>, 4 =
+ <a class="xref" href="sql-delete.html" title="DELETE"><span class="refentrytitle">DELETE</span></a>
+ </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
+ <code class="structfield">ev_enabled</code> <code class="type">char</code>
+ </p>
+ <p>
+ Controls in which <a class="xref" href="runtime-config-client.html#GUC-SESSION-REPLICATION-ROLE">session_replication_role</a> modes
+ the rule fires.
+ <code class="literal">O</code> = rule fires in <span class="quote">“<span class="quote">origin</span>”</span> and <span class="quote">“<span class="quote">local</span>”</span> modes,
+ <code class="literal">D</code> = rule is disabled,
+ <code class="literal">R</code> = rule fires in <span class="quote">“<span class="quote">replica</span>”</span> mode,
+ <code class="literal">A</code> = rule fires always.
+ </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
+ <code class="structfield">is_instead</code> <code class="type">bool</code>
+ </p>
+ <p>
+ True if the rule is an <code class="literal">INSTEAD</code> rule
+ </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
+ <code class="structfield">ev_qual</code> <code class="type">pg_node_tree</code>
+ </p>
+ <p>
+ Expression tree (in the form of a
+ <code class="function">nodeToString()</code> representation) for the
+ rule's qualifying condition
+ </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
+ <code class="structfield">ev_action</code> <code class="type">pg_node_tree</code>
+ </p>
+ <p>
+ Query tree (in the form of a
+ <code class="function">nodeToString()</code> representation) for the
+ rule's action
+ </p></td></tr></tbody></table></div></div><br class="table-break" /><div class="note"><h3 class="title">Note</h3><p>
+ <code class="literal">pg_class.relhasrules</code>
+ must be true if a table has any rules in this catalog.
+ </p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="catalog-pg-replication-origin.html" title="53.44. pg_replication_origin">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="catalogs.html" title="Chapter 53. System Catalogs">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="catalog-pg-seclabel.html" title="53.46. pg_seclabel">Next</a></td></tr><tr><td width="40%" align="left" valign="top">53.44. <code class="structname">pg_replication_origin</code> </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"> 53.46. <code class="structname">pg_seclabel</code></td></tr></table></div></body></html> \ No newline at end of file