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<?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>68.1. BKI File Format</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="[email protected]" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="bki.html" title="Chapter 68. BKI Backend Interface" /><link rel="next" href="bki-commands.html" title="68.2. BKI Commands" /></head><body><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">68.1. <acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">BKI</acronym> File Format</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="bki.html" title="Chapter 68. BKI Backend Interface">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="bki.html" title="Chapter 68. BKI Backend Interface">Up</a></td><th width="60%" align="center">Chapter 68. <acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">BKI</acronym> Backend Interface</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 10.23 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="bki-commands.html" title="68.2. BKI Commands">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="BKI-FORMAT"><div class="titlepage"><div><div><h2 class="title" style="clear: both">68.1. <acronym class="acronym">BKI</acronym> File Format</h2></div></div></div><p> This section describes how the <span class="productname">PostgreSQL</span> backend interprets <acronym class="acronym">BKI</acronym> files. This description will be easier to understand if the <code class="filename">postgres.bki</code> file is at hand as an example. </p><p> <acronym class="acronym">BKI</acronym> input consists of a sequence of commands. Commands are made up of a number of tokens, depending on the syntax of the command. Tokens are usually separated by whitespace, but need not be if there is no ambiguity. There is no special command separator; the next token that syntactically cannot belong to the preceding command starts a new one. (Usually you would put a new command on a new line, for clarity.) Tokens can be certain key words, special characters (parentheses, commas, etc.), numbers, or double-quoted strings. Everything is case sensitive. </p><p> Lines starting with <code class="literal">#</code> are ignored. </p></div><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navfooter"><hr></hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="bki.html" title="Chapter 68. BKI Backend Interface">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="bki.html" title="Chapter 68. BKI Backend Interface">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="bki-commands.html" title="68.2. BKI Commands">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 68. <acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">BKI</acronym> Backend Interface </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 10.23 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 68.2. <acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">BKI</acronym> Commands</td></tr></table></div></body></html>