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<title>42.42.pg_shadow</title>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="sect1" lang="en">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="view-pg-shadow"></a>42.42.<code class="structname">pg_shadow</code></h2></div></div></div>
<a name="id832724"></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>.
</p>
<p> The name stems from the fact that this table
should not be readable by the public since it contains passwords.
<a href="view-pg-user.html" title="42.45.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">
<a name="id832774"></a><p class="title"><b>Table42.42.<code class="structname">pg_shadow</code> Columns</b></p>
<div class="table-contents"><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 href="catalog-pg-authid.html" title="42.8.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 href="catalog-pg-authid.html" title="42.8.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 may 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">usecatupd</code></td>
<td><code class="type">bool</code></td>
<td></td>
<td> User may update system catalogs. (Even a superuser may not do
this unless this column is true.)
</td>
</tr>
<tr>
<td><code class="structfield">passwd</code></td>
<td><code class="type">text</code></td>
<td></td>
<td>Password (possibly encrypted)</td>
</tr>
<tr>
<td><code class="structfield">valuntil</code></td>
<td><code class="type">abstime</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">
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