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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>52.14. pg_conversion</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-constraint.html" title="52.13. pg_constraint" /><link rel="next" href="catalog-pg-database.html" title="52.15. pg_database" /><meta name="viewport" content="width=device-width,initial-scale=1.0" /></head><body id="docContent" class="container-fluid col-10"><div class="other_version"><a href="https://www.postgresql.jp/document/">バージョンごとのドキュメント一覧</a></div><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="4" align="center"><a accesskey="h" href="index.html">PostgreSQL 18.3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52章 システムカタログ">第52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?template=bug_report.yml&what-happened=version 18.3 : catalog-pg-conversion.html">誤訳等の報告
</a></div></td></tr><tr><td width="10%" align="left"><a accesskey="p" href="catalog-pg-constraint.html" title="52.13. pg_constraint">前へ</a> </td><td width="10%" align="left"><a accesskey="u" href="catalogs.html" title="第52章 システムカタログ">上へ</a></td><td width="60%" align="center">52.14. <code class="structname">pg_conversion</code></td><td width="20%" align="right"> <a accesskey="n" href="catalog-pg-database.html" title="52.15. pg_database">次へ</a></td></tr></table><hr /></div><div class="sect1" id="CATALOG-PG-CONVERSION"><div class="titlepage"><div><div><h2 class="title" style="clear: both">52.14. <code class="structname">pg_conversion</code> <a href="#CATALOG-PG-CONVERSION" class="id_link">#</a></h2></div></div></div><a id="id-1.10.4.16.2" class="indexterm"></a><p>
<span class="original">
The catalog <structname>pg_conversion</structname> describes
encoding conversion functions. See <xref linkend="sql-createconversion"/>
for more information.
</span>
<code class="structname">pg_conversion</code>カタログはエンコード方式変換関数を記述します。
詳細は<a class="xref" href="sql-createconversion.html" title="CREATE CONVERSION"><span class="refentrytitle">CREATE CONVERSION</span></a>を参照してください。
</p><div class="table" id="id-1.10.4.16.4"><p class="title"><strong>表52.14 <code class="structname">pg_conversion</code>の列</strong></p><div class="table-contents"><span class="original">
<title><structname>pg_conversion</structname> Columns</title>
</span><table class="table" summary="pg_conversion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">conname</code> <code class="type">name</code>
</p>
<p>
<span class="original">
Conversion name (unique within a namespace)
</span>
変換名（名前空間内で一意）
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">connamespace</code> <code class="type">oid</code>
<span class="original">
(references <link linkend="catalog-pg-namespace"><structname>pg_namespace</structname></link>.<structfield>oid</structfield>)
</span>
（参照先 <a class="link" href="catalog-pg-namespace.html" title="52.32. pg_namespace"><code class="structname">pg_namespace</code></a>.<code class="structfield">oid</code>）
</p>
<p>
<span class="original">
The OID of the namespace that contains this conversion
</span>
この変換を含む名前空間のOID
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">conowner</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="52.8. pg_authid"><code class="structname">pg_authid</code></a>.<code class="structfield">oid</code>）
</p>
<p>
<span class="original">
Owner of the conversion
</span>
変換の所有者
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">conforencoding</code> <code class="type">int4</code>
</p>
<p>
<span class="original">
Source encoding ID (<link linkend="pg-encoding-to-char"><function>pg_encoding_to_char()</function></link>
can translate this number to the encoding name)
</span>
ソースエンコーディングID（<a class="link" href="functions-info.html#PG-ENCODING-TO-CHAR"><code class="function">pg_encoding_to_char()</code></a>で、この番号からエンコード方式名称に変換できます）
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">contoencoding</code> <code class="type">int4</code>
</p>
<p>
<span class="original">
Destination encoding ID (<link linkend="pg-encoding-to-char"><function>pg_encoding_to_char()</function></link>
can translate this number to the encoding name)
</span>
ディスティネーションエンコーディングID（<a class="link" href="functions-info.html#PG-ENCODING-TO-CHAR"><code class="function">pg_encoding_to_char()</code></a>で、この番号からエンコード方式名称に変換できます）
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">conproc</code> <code class="type">regproc</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="52.39. pg_proc"><code class="structname">pg_proc</code></a>.<code class="structfield">oid</code>）
</p>
<p>
<span class="original">
Conversion function
</span>
変換関数
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">condefault</code> <code class="type">bool</code>
</p>
<p>
<span class="original">
True if this is the default conversion
</span>
これがデフォルト変換である場合はtrue
</p></td></tr></tbody></table></div></div><br class="table-break" /></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="catalog-pg-constraint.html" title="52.13. pg_constraint">前へ</a> </td><td width="20%" align="center"><a accesskey="u" href="catalogs.html" title="第52章 システムカタログ">上へ</a></td><td width="40%" align="right"> <a accesskey="n" href="catalog-pg-database.html" title="52.15. pg_database">次へ</a></td></tr><tr><td width="40%" align="left" valign="top">52.13. <code class="structname">pg_constraint</code> </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 18.3文書">ホーム</a></td><td width="40%" align="right" valign="top"> 52.15. <code class="structname">pg_database</code></td></tr></table></div></body></html>