ts</a></h2>
<p>The <code>check_constraints</code> table in Endb is used to store <a href="assertions.html">assertions</a>.</p>
<pre><code>-&gt; SELECT * FROM information_schema.check_constraints;
[{'check_clause': &quot;(NOT EXISTS (SELECT * FROM users WHERE TYPEOF(email) != 'text'))&quot;,
  'constraint_catalog': None,
  'constraint_name': 'string_email',
  'constraint_schema': 'main'}]
</code></pre>

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