Index: includes/cache.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/cache.inc,v
retrieving revision 1.5.2.6
diff -u -r1.5.2.6 cache.inc
--- includes/cache.inc	10 Jul 2009 05:41:24 -0000	1.5.2.6
+++ includes/cache.inc	25 Nov 2009 22:45:23 -0000
@@ -154,7 +154,7 @@
   else {
     if ($wildcard) {
       if ($cid == '*') {
-        db_query("DELETE FROM {". $table. "}");
+        db_query("TRUNCATE TABLE {". $table. "}");
       }
       else {
         db_query("DELETE FROM {". $table. "} WHERE cid LIKE '%s%%'", $cid);