CRM-12385

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* CRM-12385: SQL error in Payment Express Payment processing module
  http://issues.civicrm.org/jira/browse/CRM-12385

extern/pxIPN.php

@@ -24,9 +24,10 @@ $config = CRM_Core_Config::singleton();
  */
 
 $query = "
-SELECT  url_site, password, user_name, signature 
-FROM    civicrm_payment_processor 
-WHERE   payment_processor_type = 'Payment_Express' 
+SELECT  url_site, password, user_name, signature
+FROM    civicrm_payment_processor
+LEFT JOIN civicrm_payment_processor_type ON civicrm_payment_processor_type.id = civicrm_payment_processor.payment_processor_type_id
+WHERE   civicrm_payment_processor_type.name = 'Payment_Express'
 AND     user_name = %1
 ";
 $params = array(1 => array($_GET['userid'], 'String'));