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<title>31.5.check_constraints</title>
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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="infoschema-check-constraints"></a>31.5.<code class="literal">check_constraints</code></h2></div></div></div>
<p> The view <code class="literal">check_constraints</code> contains all check
constraints, either defined on a table or on a domain, that are
owned by the current user. (The owner of the table or domain is
the owner of the constraint.)
</p>
<div class="table">
<a name="id693054"></a><p class="title"><b>Table31.3.<code class="literal">check_constraints</code> Columns</b></p>
<div class="table-contents"><table summary="check_constraints Columns" border="1">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Name</th>
<th>Data Type</th>
<th>Description</th>
</tr></thead>
<tbody>
<tr>
<td><code class="literal">constraint_catalog</code></td>
<td><code class="literal">sql_identifier</code></td>
<td>Name of the database containing the constraint (always the current database)</td>
</tr>
<tr>
<td><code class="literal">constraint_schema</code></td>
<td><code class="literal">sql_identifier</code></td>
<td>Name of the schema containing the constraint</td>
</tr>
<tr>
<td><code class="literal">constraint_name</code></td>
<td><code class="literal">sql_identifier</code></td>
<td>Name of the constraint</td>
</tr>
<tr>
<td><code class="literal">check_clause</code></td>
<td><code class="literal">character_data</code></td>
<td>The check expression of the check constraint</td>
</tr>
</tbody>
</table></div>
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