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<title>[17652] trunk/wp-includes/taxonomy.php:
More efficient term intersection query.</title>
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<dt>Revision</dt> <dd><a href="http://trac.wordpress.org/changeset/17652">17652</a></dd>
<dt>Author</dt> <dd>ryan</dd>
<dt>Date</dt> <dd>2011-04-18 20:38:59 +0000 (Mon, 18 Apr 2011)</dd>
</dl>
<h3>Log Message</h3>
<pre>More efficient term intersection query. Props tigertech. see <a href="http://trac.wordpress.org/ticket/16706">#16706</a></pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkwpincludestaxonomyphp">trunk/wp-includes/taxonomy.php</a></li>
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<h3>Diff</h3>
<a id="trunkwpincludestaxonomyphp"></a>
<div class="modfile"><h4>Modified: trunk/wp-includes/taxonomy.php (17651 => 17652)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-includes/taxonomy.php 2011-04-18 17:30:58 UTC (rev 17651)
+++ trunk/wp-includes/taxonomy.php 2011-04-18 20:38:59 UTC (rev 17652)
</span><span class="lines">@@ -694,12 +694,12 @@
</span><span class="cx">
</span><span class="cx"> $terms = implode( ',', $terms );
</span><span class="cx">
</span><del>- $where[] = "$primary_table.$primary_id_column IN (
- SELECT object_id
</del><ins>+ $where[] = "(
+ SELECT COUNT(1)
</ins><span class="cx"> FROM $wpdb->term_relationships
</span><span class="cx"> WHERE term_taxonomy_id IN ($terms)
</span><del>- GROUP BY object_id HAVING COUNT(object_id) = $num_terms
- )";
</del><ins>+ AND object_id = $primary_table.$primary_id_column
+ ) = $num_terms";
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> $i++;
</span></span></pre>
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