Magento 1.4.1.1 Memory Leak Patch

AOD.patch

*** lib/Varien/Db/Select.php	2010-07-26 16:09:28.000000000 -0400
--- lib/Varien/Db/Select.php	2010-12-28 15:42:19.000000000 -0500
***************
*** 33,38 ****
--- 33,40 ----
   */
  class Varien_Db_Select extends Zend_Db_Select
  {
+     const TYPE_CONDITION    = 'TYPE_CONDITION';
+ 
      const STRAIGHT_JOIN_ON  = 'straight_join';
      const STRAIGHT_JOIN     = 'straightjoin';
      const SQL_STRAIGHT_JOIN = 'STRAIGHT_JOIN';
***************
*** 45,52 ****
      public function __construct(Zend_Db_Adapter_Abstract $adapter)
      {
          parent::__construct($adapter);
!         self::$_joinTypes[] = self::STRAIGHT_JOIN_ON;
!         self::$_partsInit = array(self::STRAIGHT_JOIN => false) + self::$_partsInit;
      }
  
      /**
--- 47,56 ----
      public function __construct(Zend_Db_Adapter_Abstract $adapter)
      {
          parent::__construct($adapter);
!         if (!in_array(self::STRAIGHT_JOIN_ON, self::$_joinTypes)) {
!             self::$_joinTypes[] = self::STRAIGHT_JOIN_ON;
!             self::$_partsInit = array(self::STRAIGHT_JOIN => false) + self::$_partsInit;
!         }
      }
  
      /**
***************
*** 86,91 ****
--- 90,101 ----
          if (is_null($value) && is_null($type)) {
              $value = '';
          }
+         /**
+          * Additional internal type used for really null value
+          */
+         if ($type == self::TYPE_CONDITION) {
+             $type = null;
+         }
          if (is_array($value)) {
              $cond = $this->_adapter->quoteInto($cond, $value);
              $value = null;