diff --git a/system/database/drivers/pdo/pdo_driver.php b/system/database/drivers/pdo/pdo_driver.php
index b0a16d9..ccf1091 100644
--- a/system/database/drivers/pdo/pdo_driver.php
+++ b/system/database/drivers/pdo/pdo_driver.php
@@ -9,7 +9,7 @@
  * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
- * @since		Version 1.0
+ * @since		Version 2.1.0
  * @filesource
  */
 
@@ -468,6 +468,7 @@
 		if (strpos($item, '.') !== FALSE)
 		{
 			$str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;
+			
 		}
 		else
 		{
diff --git a/system/database/drivers/pdo/pdo_forge.php b/system/database/drivers/pdo/pdo_forge.php
index f496a68..5516873 100644
--- a/system/database/drivers/pdo/pdo_forge.php
+++ b/system/database/drivers/pdo/pdo_forge.php
@@ -9,7 +9,7 @@
  * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
- * @since		Version 1.0
+ * @since		Version 2.1.0
  * @filesource
  */
 
diff --git a/system/database/drivers/pdo/pdo_result.php b/system/database/drivers/pdo/pdo_result.php
index 5e136f5..e3ae0da 100644
--- a/system/database/drivers/pdo/pdo_result.php
+++ b/system/database/drivers/pdo/pdo_result.php
@@ -9,7 +9,7 @@
  * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
- * @since		Version 1.0
+ * @since		Version 2.1.0
  * @filesource
  */
 
diff --git a/system/database/drivers/pdo/pdo_utility.php b/system/database/drivers/pdo/pdo_utility.php
index a09d826..50b9746 100644
--- a/system/database/drivers/pdo/pdo_utility.php
+++ b/system/database/drivers/pdo/pdo_utility.php
@@ -9,7 +9,7 @@
  * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
- * @since		Version 1.0
+ * @since		Version 2.1.0
  * @filesource
  */