Index: modules/trigger/trigger.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/trigger/trigger.module,v
retrieving revision 1.65
diff -u -p -r1.65 trigger.module
--- modules/trigger/trigger.module	24 Sep 2010 00:37:44 -0000	1.65
+++ modules/trigger/trigger.module	2 Nov 2010 15:31:21 -0000
@@ -177,9 +177,13 @@ function trigger_trigger_info() {
  *   label.
  */
 function trigger_get_assigned_actions($hook) {
-  return db_query("SELECT ta.aid, a.type, a.label FROM {trigger_assignments} ta LEFT JOIN {actions} a ON ta.aid = a.aid WHERE ta.hook = :hook ORDER BY ta.weight", array(
-    ':hook' => $hook,
-  ))->fetchAllAssoc( 'aid', PDO::FETCH_ASSOC);
+  $actions = &drupal_static(__FUNCTION__, array());
+  if (!isset($actions[$hook])) {
+    $actions[$hook] = db_query("SELECT ta.aid, a.type, a.label FROM {trigger_assignments} ta LEFT JOIN {actions} a ON ta.aid = a.aid WHERE ta.hook = :hook ORDER BY ta.weight", array(
+      ':hook' => $hook,
+    ))->fetchAllAssoc( 'aid', PDO::FETCH_ASSOC);
+  }
+  return $actions[$hook];
 }
 
 /**