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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >Structure of the Bootstrap BKI File</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REV="MADE" HREF="mailto:pgsql-docs@postgresql.org"><LINK REL="HOME" TITLE="PostgreSQL 9.2.24 Documentation" HREF="index.html"><LINK REL="UP" TITLE="BKI Backend Interface" HREF="bki.html"><LINK REL="PREVIOUS" TITLE="BKI Commands" HREF="bki-commands.html"><LINK REL="NEXT" TITLE="Example" HREF="bki-example.html"><LINK REL="STYLESHEET" TYPE="text/css" HREF="stylesheet.css"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"><META NAME="creation" CONTENT="2017-11-06T22:43:11"></HEAD ><BODY CLASS="SECT1" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="5" ALIGN="center" VALIGN="bottom" ><A HREF="index.html" >PostgreSQL 9.2.24 Documentation</A ></TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A TITLE="BKI Commands" HREF="bki-commands.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="bki.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" >Chapter 57. <ACRONYM CLASS="ACRONYM" >BKI</ACRONYM > Backend Interface</TD ><TD WIDTH="20%" ALIGN="right" VALIGN="top" ><A TITLE="Example" HREF="bki-example.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="BKI-STRUCTURE" >57.3. Structure of the Bootstrap <ACRONYM CLASS="ACRONYM" >BKI</ACRONYM > File</A ></H1 ><P > The <TT CLASS="LITERAL" >open</TT > 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 <TT CLASS="STRUCTNAME" >pg_class</TT >, <TT CLASS="STRUCTNAME" >pg_attribute</TT >, <TT CLASS="STRUCTNAME" >pg_proc</TT >, and <TT CLASS="STRUCTNAME" >pg_type</TT >.) To allow those tables themselves to be filled, <TT CLASS="LITERAL" >create</TT > with the <TT CLASS="LITERAL" >bootstrap</TT > option implicitly opens the created table for data insertion. </P ><P > Also, the <TT CLASS="LITERAL" >declare index</TT > and <TT CLASS="LITERAL" >declare toast</TT > commands cannot be used until the system catalogs they need have been created and filled in. </P ><P > Thus, the structure of the <TT CLASS="FILENAME" >postgres.bki</TT > file has to be: <P ></P ></P><OL TYPE="1" ><LI ><P > <TT CLASS="LITERAL" >create bootstrap</TT > one of the critical tables </P ></LI ><LI ><P > <TT CLASS="LITERAL" >insert</TT > data describing at least the critical tables </P ></LI ><LI ><P > <TT CLASS="LITERAL" >close</TT > </P ></LI ><LI ><P > Repeat for the other critical tables. </P ></LI ><LI ><P > <TT CLASS="LITERAL" >create</TT > (without <TT CLASS="LITERAL" >bootstrap</TT >) a noncritical table </P ></LI ><LI ><P > <TT CLASS="LITERAL" >open</TT > </P ></LI ><LI ><P > <TT CLASS="LITERAL" >insert</TT > desired data </P ></LI ><LI ><P > <TT CLASS="LITERAL" >close</TT > </P ></LI ><LI ><P > Repeat for the other noncritical tables. </P ></LI ><LI ><P > Define indexes and toast tables. </P ></LI ><LI ><P > <TT CLASS="LITERAL" >build indices</TT > </P ></LI ></OL ><P> </P ><P > There are doubtless other, undocumented ordering dependencies. </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="bki-commands.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="bki-example.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><ACRONYM CLASS="ACRONYM" >BKI</ACRONYM > Commands</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="bki.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Example</TD ></TR ></TABLE ></DIV ></BODY ></HTML >