Improving on OG (Organic Groups) module optimization - makes no sense to add an ORDER BY clause to the query which hinders on performance and not being used at all in the loop iteration for the object building.

drupal-6-slow-queries-og-1.diff

diff --git a/src/drupal/profiles/drupal_commons/modules/contrib/og/og.module b/src/drupal/profiles/drupal_commons/modules/contrib/og/og.module
index 74d4f42..545575e 100644
--- a/src/drupal/profiles/drupal_commons/modules/contrib/og/og.module
+++ b/src/drupal/profiles/drupal_commons/modules/contrib/og/og.module
@@ -894,7 +894,7 @@ function og_get_subscriptions($uid, $min_is_active = 1, $reset = FALSE) {
 
     array_unshift($types, $min_is_active);
     array_unshift($types, $uid);
-    $sql = "SELECT n.title, n.type, n.status, ou.* FROM {og_uid} ou INNER JOIN {node} n ON ou.nid = n.nid WHERE ou.uid = %d AND ou.is_active >= %d AND n.type $in ORDER BY n.title";
+    $sql = "SELECT n.title, n.type, n.status, ou.* FROM {og_uid} ou INNER JOIN {node} n ON ou.nid = n.nid WHERE ou.uid = %d AND ou.is_active >= %d AND n.type $in";
     $result = db_query($sql, $types);
     while ($row = db_fetch_array($result)) {
       $subscriptions[$uid][$min_is_active][$row['nid']] = $row;