Ticket #16826: 16826.diff

wp-includes/taxonomy.php

@@ -678 +678 @@
 
                                 $terms = implode( ',', $terms );
 
-                                $where[] = "$primary_table.$primary_id_column NOT IN (
-                                        SELECT object_id
-                                        FROM $wpdb->term_relationships
-                                        WHERE term_taxonomy_id IN ($terms)
-                                )";
+                                $alias = $i ? 'tt' . $i : $wpdb->term_relationships;
+
+                                $join .= " LEFT JOIN $wpdb->term_relationships";
+                                $join .= $i ? " AS $alias" : '';
+                                $join .= " ON ($primary_table.$primary_id_column = $alias.object_id AND $alias.term_taxonomy_id IN ($terms))";
+
+                                $where[] = "$alias.object_id IS NULL";
                         } elseif ( 'AND' == $operator ) {
 
                                 if ( empty( $terms ) )