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>Chapter 57. <ACRONYM
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>BKI</ACRONYM
> Backend Interface</TD
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>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
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