1 files changed, 2 insertions, 4 deletions
diff --git a/includes/database/mysql/database.inc b/includes/database/mysql/database.inc
index 7cf4f204c..d68951890 100644
--- a/includes/database/mysql/database.inc
+++ b/includes/database/mysql/database.inc
@@ -46,10 +46,8 @@ class DatabaseConnection_mysql extends DatabaseConnection {
     return $this->query($query . ' LIMIT ' . $from . ', ' . $count, $args, $options);
   }
 
-  public function queryTemporary($query, Array $args, $tablename, $options = array()) {
-    $query = preg_replace('/^SELECT/i', 'CREATE TEMPORARY TABLE ' . $tablename . ' Engine=HEAP SELECT', $this->prefixTables($query));
-
-    return $this->query($query, $args, $options);
+  public function queryTemporary($query, Array $args, $tablename, Array $options = array()) {
+    return $this->query(preg_replace('/^SELECT/i', 'CREATE TEMPORARY TABLE ' . $tablename . ' Engine=MEMORY SELECT', $query), $args, $options);
   }
 
   public function driver() {