le='text-align:left;'><span title='Ascending'>Asc</span></td>
  <td class='constraint' style='text-align:left;'>idx_drug_concept_id</td>
 </tr>
 <tr>
  <td class='indexedColumn'>person_id</td>
  <td class='detail'>Performance</td>
  <td class='detail' style='text-align:left;'><span title='Ascending'>Asc</span></td>
  <td class='constraint' style='text-align:left;'>idx_drug_person_id</td>
 </tr>
 <tr>
  <td class='indexedColumn'>visit_detail_id</td>
  <td class='detail'>Performance</td>
  <td class='detail' 