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<!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>75.5. Structure of the Bootstrap BKI File</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="bki-commands.html" title="75.4. BKI Commands" /><link rel="next" href="bki-example.html" title="75.6. BKI Example" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">75.5. Structure of the Bootstrap <acronym class="acronym">BKI</acronym> File</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="bki-commands.html" title="75.4. BKI Commands">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="bki.html" title="Chapter 75. System Catalog Declarations and Initial Contents">Up</a></td><th width="60%" align="center">Chapter 75. System Catalog Declarations and Initial Contents</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="bki-example.html" title="75.6. BKI Example">Next</a></td></tr></table><hr /></div><div class="sect1" id="BKI-STRUCTURE"><div class="titlepage"><div><div><h2 class="title" style="clear: both">75.5. Structure of the Bootstrap <acronym class="acronym">BKI</acronym> File <a href="#BKI-STRUCTURE" class="id_link">#</a></h2></div></div></div><p>
The <code class="literal">open</code> command cannot be used until the tables it uses
exist and have entries for the table that is to be opened.
(These minimum tables are <code class="structname">pg_class</code>,
<code class="structname">pg_attribute</code>, <code class="structname">pg_proc</code>, and
<code class="structname">pg_type</code>.) To allow those tables themselves to be filled,
<code class="literal">create</code> with the <code class="literal">bootstrap</code> option implicitly opens
the created table for data insertion.
</p><p>
Also, the <code class="literal">declare index</code> and <code class="literal">declare toast</code>
commands cannot be used until the system catalogs they need have been
created and filled in.
</p><p>
Thus, the structure of the <code class="filename">postgres.bki</code> file has to
be:
</p><div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><p>
<code class="literal">create bootstrap</code> one of the critical tables
</p></li><li class="listitem"><p>
<code class="literal">insert</code> data describing at least the critical tables
</p></li><li class="listitem"><p>
<code class="literal">close</code>
</p></li><li class="listitem"><p>
Repeat for the other critical tables.
</p></li><li class="listitem"><p>
<code class="literal">create</code> (without <code class="literal">bootstrap</code>) a noncritical table
</p></li><li class="listitem"><p>
<code class="literal">open</code>
</p></li><li class="listitem"><p>
<code class="literal">insert</code> desired data
</p></li><li class="listitem"><p>
<code class="literal">close</code>
</p></li><li class="listitem"><p>
Repeat for the other noncritical tables.
</p></li><li class="listitem"><p>
Define indexes and toast tables.
</p></li><li class="listitem"><p>
<code class="literal">build indices</code>
</p></li></ol></div><p>
</p><p>
There are doubtless other, undocumented ordering dependencies.
</p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="bki-commands.html" title="75.4. BKI Commands">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="bki.html" title="Chapter 75. System Catalog Declarations and Initial Contents">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="bki-example.html" title="75.6. BKI Example">Next</a></td></tr><tr><td width="40%" align="left" valign="top">75.4. <acronym class="acronym">BKI</acronym> Commands </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"> 75.6. BKI Example</td></tr></table></div></body></html>
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