efault value'>Default</th>
  <th title='Columns in tables that reference this column'><span class='notSortedByColumn'>Children</span></th>
  <th title='Columns in tables that are referenced by this column'><span class='notSortedByColumn'>Parents</span></th>
  <th title='Comments' class='comment'><span class='notSortedByColumn'>Comments</span></th>
</tr>
</thead>
<tbody valign='top'>
<tr class='even'>
 <td class='primaryKey' title='Primary Key'>row_id</td>
 <td class='detail'>int4</td>
 <td class='detail' al