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<title>51.3.Structure of the Bootstrap BKI File</title>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="sect1" lang="en">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="bki-structure"></a>51.3.Structure of the Bootstrap <acronym class="acronym">BKI</acronym> File</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> Thus, the structure of the <code class="filename">postgres.bki</code> file has to
be:
</p>
<div class="orderedlist"><ol type="1">
<li><p> <code class="literal">create bootstrap</code> one of the critical tables
</p></li>
<li><p> <code class="literal">insert</code> data describing at least the critical tables
</p></li>
<li><p> <code class="literal">close</code>
</p></li>
<li><p> Repeat for the other critical tables.
</p></li>
<li><p> <code class="literal">create</code> (without <code class="literal">bootstrap</code>) a noncritical table
</p></li>
<li><p> <code class="literal">open</code>
</p></li>
<li><p> <code class="literal">insert</code> desired data
</p></li>
<li><p> <code class="literal">close</code>
</p></li>
<li><p> Repeat for the other noncritical tables.
</p></li>
<li><p> Define indexes.
</p></li>
<li><p> <code class="literal">build indices</code>
</p></li>
</ol></div>
<p>
</p>
<p> There are doubtless other, undocumented ordering dependencies.
</p>
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