3 files changed, 2 insertions, 4 deletions
diff --git a/system/database/drivers/pdo/subdrivers/pdo_4d_forge.php b/system/database/drivers/pdo/subdrivers/pdo_4d_forge.php
index 9ede03e10..9dc692c1e 100644
--- a/system/database/drivers/pdo/subdrivers/pdo_4d_forge.php
+++ b/system/database/drivers/pdo/subdrivers/pdo_4d_forge.php
@@ -44,7 +44,7 @@ defined('BASEPATH') OR exit('No direct script access allowed');
  * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
  */
-class CI_DB_pdo_4d_forge extends CI_DB_4d_forge {
+class CI_DB_pdo_4d_forge extends CI_DB_pdo_forge {
 
 	/**
 	 * CREATE DATABASE statement
diff --git a/system/database/drivers/pdo/subdrivers/pdo_mysql_forge.php b/system/database/drivers/pdo/subdrivers/pdo_mysql_forge.php
index c90712a99..e8e24c6b3 100644
--- a/system/database/drivers/pdo/subdrivers/pdo_mysql_forge.php
+++ b/system/database/drivers/pdo/subdrivers/pdo_mysql_forge.php
@@ -199,8 +199,6 @@ class CI_DB_pdo_mysql_forge extends CI_DB_pdo_forge {
 			$extra_clause = ' FIRST';
 		}
 
-		$comment_clause = isset($field['comment']) ? ' COMMENT ' . $field['comment'] : '';
-
 		return $this->db->escape_identifiers($field['name'])
 			.(empty($field['new_name']) ? '' : ' '.$this->db->escape_identifiers($field['new_name']))
 			.' '.$field['type'].$field['length']
diff --git a/system/database/drivers/sqlite3/sqlite3_result.php b/system/database/drivers/sqlite3/sqlite3_result.php
index f5c24672e..387481b7f 100644
--- a/system/database/drivers/sqlite3/sqlite3_result.php
+++ b/system/database/drivers/sqlite3/sqlite3_result.php
@@ -98,7 +98,7 @@ class CI_DB_sqlite3_result extends CI_DB_result {
 		);
 
 		$retval = array();
-		for ($i = 0, $c = $this->num_fields(); $i < $this->num_fields(); $i++)
+		for ($i = 0, $c = $this->num_fields(); $i < $c; $i++)
 		{
 			$retval[$i]			= new stdClass();
 			$retval[$i]->name		= $this->result_id->columnName($i);