? sql-performance-opt.patch
Index: drupal_queue.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/drupal_queue/drupal_queue.module,v
retrieving revision 1.6
diff -u -p -r1.6 drupal_queue.module
--- drupal_queue.module	7 Oct 2010 02:12:28 -0000	1.6
+++ drupal_queue.module	4 Nov 2010 19:03:16 -0000
@@ -69,5 +69,5 @@ function drupal_queue_cron() {
 
   // Reset expired items in the default queue implementation table. If that's
   // not used, this will simply be a no-op (see D7 system_cron())
-  db_query('UPDATE {queue} SET expire = 0 WHERE expire < %d', time());
+  db_query('UPDATE {queue} SET expire = 0 WHERE expire <> 0 AND expire < %d', time());
 }