There were several patches in Drupal 6 which removed duplicate indexes (and/or added missing ones), so it&#39;s likely that pretty much all of these issues are resolved.<br><br>Nat<br><br><div class="gmail_quote">On Thu, Jul 10, 2008 at 1:18 PM, Earnie Boyd <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div><div class="Wj3C7c"><br>
<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
</blockquote>
<br></div></div>
Performance and the size of the index file. &nbsp;My reference is for Drupal 5 and I do not know what may have changed for Drupal 6 yet but there are a number of duplicated indexes on some of the tables. &nbsp;A column might be used as the first position in combination with another column to create an index and also be declared an index alone. &nbsp;This becomes a duplicate index and isn&#39;t needed. &nbsp;Some tables do not have unique or primary key identifiers a big performance hit.<div>
<br></div></blockquote></div><br>