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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>51.23. pg_foreign_data_wrapper</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-extension.html" title="51.22. pg_extension" /><link rel="next" href="catalog-pg-foreign-server.html" title="51.24. pg_foreign_server" /><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-data-wrapper.html">誤訳等の報告
</a></div></td></tr><tr><td width="10%" align="left"><a accesskey="p" href="catalog-pg-extension.html" title="51.22. pg_extension">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">51.23. <code class="structname">pg_foreign_data_wrapper</code></td><td width="20%" align="right"> <a accesskey="n" href="catalog-pg-foreign-server.html" title="51.24. pg_foreign_server">次へ</a></td></tr></table><hr /></div><div class="sect1" id="CATALOG-PG-FOREIGN-DATA-WRAPPER"><div class="titlepage"><div><div><h2 class="title" style="clear: both">51.23. <code class="structname">pg_foreign_data_wrapper</code></h2></div></div></div><a id="id-1.10.4.25.2" class="indexterm"></a><p>
<span class="original">
The catalog <structname>pg_foreign_data_wrapper</structname> stores
foreign-data wrapper definitions. A foreign-data wrapper is the
mechanism by which external data, residing on foreign servers, is
accessed.
</span>
<code class="structname">pg_foreign_data_wrapper</code>カタログは外部データラッパの定義を保存します。
外部データラッパは外部サーバにあるデータにアクセスするための機構です。
</p><div class="table" id="id-1.10.4.25.4"><p class="title"><strong>表51.23 <code class="structname">pg_foreign_data_wrapper</code>の列</strong></p><div class="table-contents"><span class="original">
<title><structname>pg_foreign_data_wrapper</structname> Columns</title>
</span><table class="table" summary="pg_foreign_data_wrapper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">oid</code> <code class="type">oid</code>
</p>
<p>
<span class="original">
Row identifier
</span>
行識別子
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">fdwname</code> <code class="type">name</code>
</p>
<p>
<span class="original">
Name of the foreign-data wrapper
</span>
外部データラッパの名前
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">fdwowner</code> <code class="type">oid</code>
<span class="original">
(references <link linkend="catalog-pg-authid"><structname>pg_authid</structname></link>.<structfield>oid</structfield>)
</span>
（参照先 <a class="link" href="catalog-pg-authid.html" title="51.8. pg_authid"><code class="structname">pg_authid</code></a>.<code class="structfield">oid</code>）
</p>
<p>
<span class="original">
Owner of the foreign-data wrapper
</span>
外部データラッパの所有者
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">fdwhandler</code> <code class="type">oid</code>
<span class="original">
(references <link linkend="catalog-pg-proc"><structname>pg_proc</structname></link>.<structfield>oid</structfield>)
</span>
（参照先 <a class="link" href="catalog-pg-proc.html" title="51.38. pg_proc"><code class="structname">pg_proc</code></a>.<code class="structfield">oid</code>）
</p>
<p>
<span class="original">
References a handler function that is responsible for
supplying execution routines for the foreign-data wrapper.
Zero if no handler is provided
</span>
外部データラッパに対する実行関数の提供に責任を持つハンドラ関数への参照。
ハンドラ関数がない場合はゼロになります。
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">fdwvalidator</code> <code class="type">oid</code>
<span class="original">
(references <link linkend="catalog-pg-proc"><structname>pg_proc</structname></link>.<structfield>oid</structfield>)
</span>
（参照先 <a class="link" href="catalog-pg-proc.html" title="51.38. pg_proc"><code class="structname">pg_proc</code></a>.<code class="structfield">oid</code>）
</p>
<p>
<span class="original">
References a validator function that is responsible for
checking the validity of the options given to the
foreign-data wrapper, as well as options for foreign servers and user
mappings using the foreign-data wrapper. Zero if no validator
is provided
</span>
外部サーバや外部データラッパを使用するユーザマップと同様に外部データラッパに対して与えられたオプションの正当性を検査する有効性検証関数。
有効性検証関数がない場合はゼロになります。
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">fdwacl</code> <code class="type">aclitem[]</code>
</p>
<p>
<span class="original">
Access privileges; see <xref linkend="ddl-priv"/> for details
</span>
アクセス権限。
詳細は<a class="xref" href="ddl-priv.html" title="5.7. 権限">5.7</a>を参照してください。
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">fdwoptions</code> <code class="type">text[]</code>
</p>
<p>
<span class="original">
Foreign-data wrapper specific options, as <quote>keyword=value</quote> strings
</span>
外部データラッパの<span class="quote">「<span class="quote">keyword=value</span>」</span>のような特定のオプション。
</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-extension.html" title="51.22. pg_extension">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-foreign-server.html" title="51.24. pg_foreign_server">次へ</a></td></tr><tr><td width="40%" align="left" valign="top">51.22. <code xmlns="http://www.w3.org/1999/xhtml" class="structname">pg_extension</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"> 51.24. <code xmlns="http://www.w3.org/1999/xhtml" class="structname">pg_foreign_server</code></td></tr></table></div></body></html>