Linux SRV-16 6.18.44-paas #1 SMP PREEMPT_DYNAMIC Thu Aug 13 10:08:12 UTC 2026 x86_64
/
opt
/
postgresql-12.0-201910311810
/
doc
/
html
/
//opt/postgresql-12.0-201910311810/doc/html/view-pg-shadow.html
<?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>51.87. 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 V1.79.1" /><link rel="prev" href="view-pg-settings.html" title="51.86. pg_settings" /><link rel="next" href="view-pg-stats.html" title="51.88. pg_stats" /></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">51.87. <code xmlns="http://www.w3.org/1999/xhtml" class="structname">pg_shadow</code></th></tr><tr><td width="10%" align="left"><a accesskey="p" href="view-pg-settings.html" title="51.86. pg_settings">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="catalogs.html" title="Chapter 51. System Catalogs">Up</a></td><th width="60%" align="center">Chapter 51. System Catalogs</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 12.0 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="view-pg-stats.html" title="51.88. pg_stats">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="VIEW-PG-SHADOW"><div class="titlepage"><div><div><h2 class="title" style="clear: both">51.87. <code class="structname">pg_shadow</code></h2></div></div></div><a id="id-1.10.4.89.2" 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="51.8. 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="51.93. 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-1.10.4.89.5"><p class="title"><strong>Table 51.88. <code class="structname">pg_shadow</code> Columns</strong></p><div class="table-contents"><table class="table" summary="pg_shadow Columns" border="1"><colgroup><col /><col /><col /><col /></colgroup><thead><tr><th>Name</th><th>Type</th><th>References</th><th>Description</th></tr></thead><tbody><tr><td><code class="structfield">usename</code></td><td><code class="type">name</code></td><td><code class="literal"><a class="link" href="catalog-pg-authid.html" title="51.8. pg_authid"><code class="structname">pg_authid</code></a>.rolname</code></td><td>User name</td></tr><tr><td><code class="structfield">usesysid</code></td><td><code class="type">oid</code></td><td><code class="literal"><a class="link" href="catalog-pg-authid.html" title="51.8. pg_authid"><code class="structname">pg_authid</code></a>.oid</code></td><td>ID of this user</td></tr><tr><td><code class="structfield">usecreatedb</code></td><td><code class="type">bool</code></td><td> </td><td>User can create databases</td></tr><tr><td><code class="structfield">usesuper</code></td><td><code class="type">bool</code></td><td> </td><td>User is a superuser</td></tr><tr><td><code class="structfield">userepl</code></td><td><code class="type">bool</code></td><td> </td><td> User can initiate streaming replication and put the system in and out of backup mode. </td></tr><tr><td><code class="structfield">usebypassrls</code></td><td><code class="type">bool</code></td><td> </td><td> 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. </td></tr><tr><td><code class="structfield">passwd</code></td><td><code class="type">text</code></td><td> </td><td>Password (possibly encrypted); null if none. See <a class="link" href="catalog-pg-authid.html" title="51.8. pg_authid"><code class="structname">pg_authid</code></a> for details of how encrypted passwords are stored.</td></tr><tr><td><code class="structfield">valuntil</code></td><td><code class="type">timestamptz</code></td><td> </td><td>Password expiry time (only used for password authentication)</td></tr><tr><td><code class="structfield">useconfig</code></td><td><code class="type">text[]</code></td><td> </td><td>Session defaults for run-time configuration variables</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">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-stats.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">51.86. <code class="structname">pg_settings</code> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> 51.88. <code class="structname">pg_stats</code></td></tr></table></div></body></html>