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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>53.14. 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="53.13. pg_constraint" /><link rel="next" href="catalog-pg-database.html" title="53.15. pg_database" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">53.14. <code class="structname">pg_conversion</code></th></tr><tr><td width="10%" align="left"><a accesskey="p" href="catalog-pg-constraint.html" title="53.13. pg_constraint">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="catalogs.html" title="Chapter 53. System Catalogs">Up</a></td><th width="60%" align="center">Chapter 53. System Catalogs</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 15.7 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="catalog-pg-database.html" title="53.15. pg_database">Next</a></td></tr></table><hr /></div><div class="sect1" id="CATALOG-PG-CONVERSION"><div class="titlepage"><div><div><h2 class="title" style="clear: both">53.14. <code class="structname">pg_conversion</code></h2></div></div></div><a id="id-1.10.4.16.2" class="indexterm"></a><p>
The catalog <code class="structname">pg_conversion</code> describes
encoding conversion functions. See <a class="xref" href="sql-createconversion.html" title="CREATE CONVERSION"><span class="refentrytitle">CREATE CONVERSION</span></a>
for more information.
</p><div class="table" id="id-1.10.4.16.4"><p class="title"><strong>Table 53.14. <code class="structname">pg_conversion</code> Columns</strong></p><div class="table-contents"><table class="table" summary="pg_conversion Columns" border="1"><colgroup><col /></colgroup><thead><tr><th class="catalog_table_entry"><p class="column_definition">
Column Type
</p>
<p>
Description
</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>
Row identifier
</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>
Conversion name (unique within a namespace)
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">connamespace</code> <code class="type">oid</code>
(references <a class="link" href="catalog-pg-namespace.html" title="53.32. pg_namespace"><code class="structname">pg_namespace</code></a>.<code class="structfield">oid</code>)
</p>
<p>
The OID of the namespace that contains this conversion
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">conowner</code> <code class="type">oid</code>
(references <a class="link" href="catalog-pg-authid.html" title="53.8. pg_authid"><code class="structname">pg_authid</code></a>.<code class="structfield">oid</code>)
</p>
<p>
Owner of the conversion
</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>
Source encoding ID (<a class="link" href="functions-info.html#PG-ENCODING-TO-CHAR"><code class="function">pg_encoding_to_char()</code></a>
can translate this number to the encoding name)
</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>
Destination encoding ID (<a class="link" href="functions-info.html#PG-ENCODING-TO-CHAR"><code class="function">pg_encoding_to_char()</code></a>
can translate this number to the encoding name)
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">conproc</code> <code class="type">regproc</code>
(references <a class="link" href="catalog-pg-proc.html" title="53.39. pg_proc"><code class="structname">pg_proc</code></a>.<code class="structfield">oid</code>)
</p>
<p>
Conversion function
</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>
True if this is the default conversion
</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="53.13. pg_constraint">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="catalogs.html" title="Chapter 53. System Catalogs">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="catalog-pg-database.html" title="53.15. pg_database">Next</a></td></tr><tr><td width="40%" align="left" valign="top">53.13. <code class="structname">pg_constraint</code> </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.7 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 53.15. <code class="structname">pg_database</code></td></tr></table></div></body></html>
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