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<!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>54.25. pg_shadow</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="view-pg-settings.html" title="54.24. pg_settings" /><link rel="next" href="view-pg-shmem-allocations.html" title="54.26. pg_shmem_allocations" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">54.25. <code class="structname">pg_shadow</code></th></tr><tr><td width="10%" align="left"><a accesskey="p" href="view-pg-settings.html" title="54.24. pg_settings">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="views.html" title="Chapter 54. System Views">Up</a></td><th width="60%" align="center">Chapter 54. System Views</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 16.3 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="view-pg-shmem-allocations.html" title="54.26. pg_shmem_allocations">Next</a></td></tr></table><hr /></div><div class="sect1" id="VIEW-PG-SHADOW"><div class="titlepage"><div><div><h2 class="title" style="clear: both">54.25. <code class="structname">pg_shadow</code> <a href="#VIEW-PG-SHADOW" class="id_link">#</a></h2></div></div></div><a id="id-1.10.5.29.2" class="indexterm"></a><p>
The view <code class="structname">pg_shadow</code> exists for backwards
compatibility: it emulates a catalog that existed in
<span class="productname">PostgreSQL</span> before version 8.1.
It shows properties of all roles that are marked as
<code class="structfield">rolcanlogin</code> in
<a class="link" href="catalog-pg-authid.html" title="53.8. pg_authid"><code class="structname">pg_authid</code></a>.
</p><p>
The name stems from the fact that this table
should not be readable by the public since it contains passwords.
<a class="link" href="view-pg-user.html" title="54.33. pg_user"><code class="structname">pg_user</code></a>
is a publicly readable view on
<code class="structname">pg_shadow</code> that blanks out the password field.
</p><div class="table" id="id-1.10.5.29.5"><p class="title"><strong>Table 54.25. <code class="structname">pg_shadow</code> Columns</strong></p><div class="table-contents"><table class="table" summary="pg_shadow 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">usename</code> <code class="type">name</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">rolname</code>)
</p>
<p>
User name
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">usesysid</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>
ID of this user
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">usecreatedb</code> <code class="type">bool</code>
</p>
<p>
User can create databases
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">usesuper</code> <code class="type">bool</code>
</p>
<p>
User is a superuser
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">userepl</code> <code class="type">bool</code>
</p>
<p>
User can initiate streaming replication and put the system in and
out of backup mode.
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">usebypassrls</code> <code class="type">bool</code>
</p>
<p>
User bypasses every row-level security policy, see
<a class="xref" href="ddl-rowsecurity.html" title="5.8. Row Security Policies">Section 5.8</a> for more information.
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">passwd</code> <code class="type">text</code>
</p>
<p>
Password (possibly encrypted); null if none. See
<a class="link" href="catalog-pg-authid.html" title="53.8. pg_authid"><code class="structname">pg_authid</code></a>
for details of how encrypted passwords are stored.
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">valuntil</code> <code class="type">timestamptz</code>
</p>
<p>
Password expiry time (only used for password authentication)
</p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">
<code class="structfield">useconfig</code> <code class="type">text[]</code>
</p>
<p>
Session defaults for run-time configuration variables
</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="view-pg-settings.html" title="54.24. pg_settings">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="views.html" title="Chapter 54. System Views">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="view-pg-shmem-allocations.html" title="54.26. pg_shmem_allocations">Next</a></td></tr><tr><td width="40%" align="left" valign="top">54.24. <code class="structname">pg_settings</code> </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 16.3 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 54.26. <code class="structname">pg_shmem_allocations</code></td></tr></table></div></body></html>