<?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>52.65. pg_available_extensions</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="views-overview.html" title="52.64. System Views" /><link rel="next" href="view-pg-available-extension-versions.html" title="52.66. pg_available_extension_versions" /></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">52.65. <code xmlns="http://www.w3.org/1999/xhtml" class="structname">pg_available_extensions</code></th></tr><tr><td width="10%" align="left"><a accesskey="p" href="views-overview.html" title="52.64. System Views">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="catalogs.html" title="Chapter 52. System Catalogs">Up</a></td><th width="60%" align="center">Chapter 52. System Catalogs</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 11.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="view-pg-available-extension-versions.html" title="52.66. pg_available_extension_versions">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="VIEW-PG-AVAILABLE-EXTENSIONS"><div class="titlepage"><div><div><h2 class="title" style="clear: both">52.65. <code class="structname">pg_available_extensions</code></h2></div></div></div><a id="id-1.10.4.67.2" class="indexterm"></a><p>
The <code class="structname">pg_available_extensions</code> view lists the
extensions that are available for installation.
See also the
<a class="link" href="catalog-pg-extension.html" title="52.22. pg_extension"><code class="structname">pg_extension</code></a>
catalog, which shows the extensions currently installed.
</p><div class="table" id="id-1.10.4.67.4"><p class="title"><strong>Table 52.66. <code class="structname">pg_available_extensions</code> Columns</strong></p><div class="table-contents"><table class="table" summary="pg_available_extensions Columns" border="1"><colgroup><col /><col /><col /></colgroup><thead><tr><th>Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td><code class="structfield">name</code></td><td><code class="type">name</code></td><td>Extension name</td></tr><tr><td><code class="structfield">default_version</code></td><td><code class="type">text</code></td><td>Name of default version, or <code class="literal">NULL</code> if none is
specified</td></tr><tr><td><code class="structfield">installed_version</code></td><td><code class="type">text</code></td><td>Currently installed version of the extension,
or <code class="literal">NULL</code> if not installed</td></tr><tr><td><code class="structfield">comment</code></td><td><code class="type">text</code></td><td>Comment string from the extension's control file</td></tr></tbody></table></div></div><br class="table-break" /><p>
The <code class="structname">pg_available_extensions</code> view is read only.
</p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="views-overview.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="catalogs.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="view-pg-available-extension-versions.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">52.64. System Views </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> 52.66. <code class="structname">pg_available_extension_versions</code></td></tr></table></div></body></html>
