title: Are HiLo IDs unique across different tables?
body: <p>I have two different classes that map to two different database tables. IDs are created by NHibernate using the HiLo generator:</p>
  
  <pre><code>&lt;generator class="hilo"&gt;
      &lt;param name="table"&gt;uid&lt;/param&gt;
      &lt;param name="column"&gt;column&lt;/param&gt;
  &lt;/generator&gt;
  </code></pre>
  
  <p>Are the IDs unique across both tables if I use the same <code>table</code> and <code>column</code> parameters for both mappings? If not, how can I achieve this?</p>