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diff --git a/doc/src/sgml/html/ddl-system-columns.html b/doc/src/sgml/html/ddl-system-columns.html
index ab773d3..67bf8bb 100644
--- a/doc/src/sgml/html/ddl-system-columns.html
+++ b/doc/src/sgml/html/ddl-system-columns.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>5.5. System Columns</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="ddl-constraints.html" title="5.4. Constraints" /><link rel="next" href="ddl-alter.html" title="5.6. Modifying Tables" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">5.5. System Columns</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="ddl-constraints.html" title="5.4. Constraints">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="ddl.html" title="Chapter 5. Data Definition">Up</a></td><th width="60%" align="center">Chapter 5. Data Definition</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="ddl-alter.html" title="5.6. Modifying Tables">Next</a></td></tr></table><hr /></div><div class="sect1" id="DDL-SYSTEM-COLUMNS"><div class="titlepage"><div><div><h2 class="title" style="clear: both">5.5. System Columns</h2></div></div></div><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>5.5. System Columns</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="ddl-constraints.html" title="5.4. Constraints" /><link rel="next" href="ddl-alter.html" title="5.6. Modifying Tables" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">5.5. System Columns</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="ddl-constraints.html" title="5.4. Constraints">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="ddl.html" title="Chapter 5. Data Definition">Up</a></td><th width="60%" align="center">Chapter 5. Data Definition</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="ddl-alter.html" title="5.6. Modifying Tables">Next</a></td></tr></table><hr /></div><div class="sect1" id="DDL-SYSTEM-COLUMNS"><div class="titlepage"><div><div><h2 class="title" style="clear: both">5.5. System Columns</h2></div></div></div><p>
Every table has several <em class="firstterm">system columns</em> that are
implicitly defined by the system. Therefore, these names cannot be
used as names of user-defined columns. (Note that these
@@ -55,4 +55,4 @@
<acronym class="acronym">SQL</acronym> commands, not the number of rows processed.
Also, only commands that actually modify the database contents will
consume a command identifier.
- </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ddl-constraints.html" title="5.4. Constraints">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ddl.html" title="Chapter 5. Data Definition">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ddl-alter.html" title="5.6. Modifying Tables">Next</a></td></tr><tr><td width="40%" align="left" valign="top">5.4. Constraints </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"> 5.6. Modifying Tables</td></tr></table></div></body></html> \ No newline at end of file
+ </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ddl-constraints.html" title="5.4. Constraints">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ddl.html" title="Chapter 5. Data Definition">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ddl-alter.html" title="5.6. Modifying Tables">Next</a></td></tr><tr><td width="40%" align="left" valign="top">5.4. Constraints </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"> 5.6. Modifying Tables</td></tr></table></div></body></html> \ No newline at end of file