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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>51.25. pg_foreign_table</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="catalog-pg-foreign-server.html" title="51.24. pg_foreign_server" /><link rel="next" href="catalog-pg-index.html" title="51.26. pg_index" /><meta name="viewport" content="width=device-width,initial-scale=1.0" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="4" align="center"><a accesskey="h" href="index.html">PostgreSQL 13.1文書</a></th></tr><tr><td width="10%" align="left"></td><td width="10%" align="left"></td><td width="60%" align="center"><a href="catalogs.html" title="第51章 システムカタログ">第51章 システムカタログ</a></td><td width="20%" align="right"><div class="actions"><a class="issue" title="github" href="https://github.com/pgsql-jp/jpug-doc/issues/new?title=version 13.1 catalog-pg-foreign-table.html">誤訳等の報告
</a></div></td></tr><tr><td width="10%" align="left"><a accesskey="p" href="catalog-pg-foreign-server.html" title="51.24. pg_foreign_server">前へ</a> </td><td width="10%" align="left"><a accesskey="u" href="catalogs.html" title="第51章 システムカタログ">上へ</a></td><td width="60%" align="center">51.25. <code class="structname">pg_foreign_table</code></td><td width="20%" align="right"> <a accesskey="n" href="catalog-pg-index.html" title="51.26. pg_index">次へ</a></td></tr></table><hr /></div><div class="sect1" id="CATALOG-PG-FOREIGN-TABLE"><div class="titlepage"><div><div><h2 class="title" style="clear: both">51.25. <code class="structname">pg_foreign_table</code></h2></div></div></div><a id="id-1.10.4.27.2" class="indexterm"></a><p>
<span class="original">
The catalog <structname>pg_foreign_table</structname> contains
auxiliary information about foreign tables. A foreign table is
primarily represented by a <structname>pg_class</structname> entry,
just like a regular table. Its <structname>pg_foreign_table</structname>
entry contains the information that is pertinent only to foreign tables
and not any other kind of relation.
</span>
<code class="structname">pg_foreign_table</code>カタログには、外部テーブルに関する補助情報が含まれます。
外部テーブルは主に<code class="structname">pg_class</code>の項目により表されます。
<code class="structname">pg_foreign_table</code>の項目には、外部テーブルに属する情報のみに関する情報が含まれ、他の種類のリレーションは含まれません。
</p><div class="table" id="id-1.10.4.27.4"><p class="title"><strong>表51.25 <code class="structname">pg_foreign_table</code>の列</strong></p><div class="table-contents"><span class="original">
<title><structname>pg_foreign_table</structname> Columns</title>
</span><table class="table" summary="pg_foreign_tableの列" border="1"><colgroup><col /></colgroup><thead><tr><th class="catalog_table_entry"><p class="column_definition">
<span class="original">
Column Type
</span>
列 型
</p>
<p>
<span class="original">
Description
</span>
説明
</p></th></tr></thead><tbody><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">ftrelid</code> <code class="type">oid</code>
<span class="original">
(references <link linkend="catalog-pg-class"><structname>pg_class</structname></link>.<structfield>oid</structfield>)
</span>
（参照先 <a class="link" href="catalog-pg-class.html" title="51.11. pg_class"><code class="structname">pg_class</code></a>.<code class="structfield">oid</code>）
</p>
<p>
<span class="original">
OID of the <structname>pg_class</structname> entry for this foreign table
</span>
この外部テーブルに対する<code class="structname">pg_class</code>項目のOID
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">ftserver</code> <code class="type">oid</code>
<span class="original">
(references <link linkend="catalog-pg-foreign-server"><structname>pg_foreign_server</structname></link>.<structfield>oid</structfield>)
</span>
（参照先 <a class="link" href="catalog-pg-foreign-server.html" title="51.24. pg_foreign_server"><code class="structname">pg_foreign_server</code></a>.<code class="structfield">oid</code>）
</p>
<p>
<span class="original">
OID of the foreign server for this foreign table
</span>
この外部テーブルに対する外部サーバOID
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">ftoptions</code> <code class="type">text[]</code>
</p>
<p>
<span class="original">
Foreign table options, as <quote>keyword=value</quote> strings
</span>
<span class="quote">「<span class="quote">keyword=value</span>」</span>文字列のような、外部テーブルのオプション
</p></td></tr></tbody></table></div></div><br class="table-break" /></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="catalog-pg-foreign-server.html" title="51.24. pg_foreign_server">前へ</a> </td><td width="20%" align="center"><a accesskey="u" href="catalogs.html" title="第51章 システムカタログ">上へ</a></td><td width="40%" align="right"> <a accesskey="n" href="catalog-pg-index.html" title="51.26. pg_index">次へ</a></td></tr><tr><td width="40%" align="left" valign="top">51.24. <code xmlns="http://www.w3.org/1999/xhtml" class="structname">pg_foreign_server</code> </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 13.1文書">ホーム</a></td><td width="40%" align="right" valign="top"> 51.26. <code xmlns="http://www.w3.org/1999/xhtml" class="structname">pg_index</code></td></tr></table></div></body></html>