diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index f559863..6188c94 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -934,8 +934,8 @@
 	 *
 	 * This function escapes column and table names
 	 *
-	 * @param	string
-	 * @return	string
+	 * @param	mixed
+	 * @return	mixed
 	 */
 	public function escape_identifiers($item)
 	{
@@ -943,6 +943,15 @@
 		{
 			return $item;
 		}
+		elseif (is_array($item))
+		{
+			foreach ($item as $key => $value)
+			{
+				$item[$key] = $this->escape_identifiers($value);
+			}
+
+			return $item;
+		}
 
 		static $preg_ec = array();
 
diff --git a/system/database/drivers/cubrid/cubrid_forge.php b/system/database/drivers/cubrid/cubrid_forge.php
index 8434cd2..d328aa2 100644
--- a/system/database/drivers/cubrid/cubrid_forge.php
+++ b/system/database/drivers/cubrid/cubrid_forge.php
@@ -158,7 +158,7 @@
 		if (count($primary_keys) > 0)
 		{
 			$key_name = $this->db->escape_identifiers('pk_'.$table.'_'.implode('_', $primary_keys));
-			$sql .= ",\n\tCONSTRAINT ".$key_name.' PRIMARY KEY('.implode(', ', $this->db->protect_identifiers($primary_keys)).')';
+			$sql .= ",\n\tCONSTRAINT ".$key_name.' PRIMARY KEY('.implode(', ', $this->db->escape_identifiers($primary_keys)).')';
 		}
 
 		if (is_array($keys) && count($keys) > 0)
@@ -168,7 +168,7 @@
 				if (is_array($key))
 				{
 					$key_name = $this->db->escape_identifiers('idx_'.$table.implode('_', $key));
-					$key = $this->db->protect_identifiers($key);
+					$key = $this->db->escape_identifiers($key);
 				}
 				else
 				{
diff --git a/system/database/drivers/interbase/interbase_forge.php b/system/database/drivers/interbase/interbase_forge.php
index 4e6a60c..3f9967f 100644
--- a/system/database/drivers/interbase/interbase_forge.php
+++ b/system/database/drivers/interbase/interbase_forge.php
@@ -87,7 +87,7 @@
 	{
 		$sql = 'CREATE TABLE ';
 
-		$sql .= $this->db->protect_identifiers($table).'(';
+		$sql .= $this->db->escape_identifiers($table).'(';
 		$current_field_count = 0;
 
 		foreach ($fields as $field => $attributes)
@@ -135,7 +135,7 @@
 
 		if (count($primary_keys) > 0)
 		{
-			$primary_keys = $this->db->protect_identifiers($primary_keys);
+			$primary_keys = $this->db->escape_identifiers($primary_keys);
 			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $primary_keys).')';
 		}
 
@@ -144,7 +144,7 @@
 			foreach ($keys as $key)
 			{
 				$key = is_array($key)
-					? $this->db->protect_identifiers($key)
+					? $this->db->escape_identifiers($key)
 					: array($this->db->escape_identifiers($key));
 
 				$sql .= ",\n\tUNIQUE (".implode(', ', $key).')';
diff --git a/system/database/drivers/mssql/mssql_forge.php b/system/database/drivers/mssql/mssql_forge.php
index 4d98221..3a3528f 100644
--- a/system/database/drivers/mssql/mssql_forge.php
+++ b/system/database/drivers/mssql/mssql_forge.php
@@ -103,7 +103,7 @@
 
 		if (count($primary_keys) > 0)
 		{
-			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->protect_identifiers($primary_keys)).')';
+			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->escape_identifiers($primary_keys)).')';
 		}
 
 		if (is_array($keys) && count($keys) > 0)
@@ -111,7 +111,7 @@
 			foreach ($keys as $key)
 			{
 				$key = is_array($key)
-					? $this->db->protect_identifiers($key)
+					? $this->db->escape_identifiers($key)
 					: array($this->db->escape_identifiers($key));
 
 				$sql .= ",\n\tFOREIGN KEY (".implode(', ', $key).')';
diff --git a/system/database/drivers/mysql/mysql_forge.php b/system/database/drivers/mysql/mysql_forge.php
index 7656c28..d22454d 100644
--- a/system/database/drivers/mysql/mysql_forge.php
+++ b/system/database/drivers/mysql/mysql_forge.php
@@ -142,7 +142,7 @@
 		if (count($primary_keys) > 0)
 		{
 			$key_name = $this->db->escape_identifiers(implode('_', $primary_keys));
-			$sql .= ",\n\tPRIMARY KEY ".$key_name.' ('.implode(', ', $this->db->protect_identifiers($primary_keys)).')';
+			$sql .= ",\n\tPRIMARY KEY ".$key_name.' ('.implode(', ', $this->db->escape_identifiers($primary_keys)).')';
 		}
 
 		if (is_array($keys) && count($keys) > 0)
@@ -152,7 +152,7 @@
 				if (is_array($key))
 				{
 					$key_name = $this->db->escape_identifiers(implode('_', $key));
-					$key = $this->db->protect_identifiers($key);
+					$key = $this->db->escape_identifiers($key);
 				}
 				else
 				{
diff --git a/system/database/drivers/mysql/mysql_utility.php b/system/database/drivers/mysql/mysql_utility.php
index 643682f..f0bbc66 100644
--- a/system/database/drivers/mysql/mysql_utility.php
+++ b/system/database/drivers/mysql/mysql_utility.php
@@ -65,7 +65,7 @@
 			}
 
 			// Get the table schema
-			$query = $this->db->query('SHOW CREATE TABLE '.$this->db->protect_identifiers($this->db->database).'.'.$this->db->protect_identifiers($table));
+			$query = $this->db->query('SHOW CREATE TABLE '.$this->db->escape_identifiers($this->db->database.'.'.$table));
 
 			// No result means the table name was invalid
 			if ($query === FALSE)
@@ -120,7 +120,7 @@
 							TRUE);
 
 				// Create a string of field names
-				$field_str .= $this->db->protect_identifiers($field->name).', ';
+				$field_str .= $this->db->escape_identifiers($field->name).', ';
 				$i++;
 			}
 
diff --git a/system/database/drivers/mysqli/mysqli_forge.php b/system/database/drivers/mysqli/mysqli_forge.php
index e0e98f1..b74c775 100644
--- a/system/database/drivers/mysqli/mysqli_forge.php
+++ b/system/database/drivers/mysqli/mysqli_forge.php
@@ -152,7 +152,7 @@
 				if (is_array($key))
 				{
 					$key_name = $this->db->escape_identifiers(implode('_', $key));
-					$key = $this->db->protect_identifiers($key);
+					$key = $this->db->escape_identifiers($key);
 				}
 				else
 				{
diff --git a/system/database/drivers/oci8/oci8_forge.php b/system/database/drivers/oci8/oci8_forge.php
index be09375..92e8c02 100644
--- a/system/database/drivers/oci8/oci8_forge.php
+++ b/system/database/drivers/oci8/oci8_forge.php
@@ -100,7 +100,7 @@
 
 		if (count($primary_keys) > 0)
 		{
-			$sql .= ",\n\tCONSTRAINT ".$table.' PRIMARY KEY ('.implode(', ', $this->db->protect_identifiers($primary_keys)).')';
+			$sql .= ",\n\tCONSTRAINT ".$table.' PRIMARY KEY ('.implode(', ', $this->db->escape_identifiers($primary_keys)).')';
 		}
 
 		if (is_array($keys) && count($keys) > 0)
@@ -108,7 +108,7 @@
 			foreach ($keys as $key)
 			{
 				$key = is_array($key)
-					? $this->db->protect_identifiers($key)
+					? $this->db->escape_identifiers($key)
 					: array($this->db->escape_identifiers($key));
 
 				$sql .= ",\n\tUNIQUE COLUMNS (".implode(', ', $key).')';
diff --git a/system/database/drivers/odbc/odbc_forge.php b/system/database/drivers/odbc/odbc_forge.php
index 5c0b200..b074c58 100644
--- a/system/database/drivers/odbc/odbc_forge.php
+++ b/system/database/drivers/odbc/odbc_forge.php
@@ -104,7 +104,7 @@
 
 		if (count($primary_keys) > 0)
 		{
-			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->protect_identifiers($primary_keys)).')';
+			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->escape_identifiers($primary_keys)).')';
 		}
 
 		if (is_array($keys) && count($keys) > 0)
@@ -112,7 +112,7 @@
 			foreach ($keys as $key)
 			{
 				$key = is_array($key)
-					? $this->db->protect_identifiers($key)
+					? $this->db->escape_identifiers($key)
 					: array($this->db->escape_identifiers($key));
 
 				$sql .= ",\n\tFOREIGN KEY (".implode(', ', $key).')';
diff --git a/system/database/drivers/pdo/pdo_forge.php b/system/database/drivers/pdo/pdo_forge.php
index 5645750..02ceb74 100644
--- a/system/database/drivers/pdo/pdo_forge.php
+++ b/system/database/drivers/pdo/pdo_forge.php
@@ -112,7 +112,7 @@
 
 		if (count($primary_keys) > 0)
 		{
-			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->protect_identifiers($primary_keys)).')';
+			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->escape_identifiers($primary_keys)).')';
 		}
 
 		if (is_array($keys) && count($keys) > 0)
@@ -120,7 +120,7 @@
 			foreach ($keys as $key)
 			{
 				$key = is_array($key)
-					? $this->db->protect_identifiers($key)
+					? $this->db->escape_identifiers($key)
 					: array($this->db->escape_identifiers($key));
 
 				$sql .= ",\n\tFOREIGN KEY (".implode(', ', $key).')';
diff --git a/system/database/drivers/postgre/postgre_forge.php b/system/database/drivers/postgre/postgre_forge.php
index fc11245..c434e95 100644
--- a/system/database/drivers/postgre/postgre_forge.php
+++ b/system/database/drivers/postgre/postgre_forge.php
@@ -158,13 +158,7 @@
 
 		if (count($primary_keys) > 0)
 		{
-			// Something seems to break when passing an array to escape_identifiers()
-			foreach ($primary_keys as $index => $key)
-			{
-				$primary_keys[$index] = $this->db->escape_identifiers($key);
-			}
-
-			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $primary_keys).')';
+			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->escape_identifiers($primary_keys)).')';
 		}
 
 		$sql .= "\n);";
@@ -174,7 +168,7 @@
 			foreach ($keys as $key)
 			{
 				$key = is_array($key)
-					? $this->db->protect_identifiers($key)
+					? $this->db->escape_identifiers($key)
 					: array($this->db->escape_identifiers($key));
 
 				foreach ($key as $field)
diff --git a/system/database/drivers/sqlite/sqlite_forge.php b/system/database/drivers/sqlite/sqlite_forge.php
index ba7dc90..71eed7d 100644
--- a/system/database/drivers/sqlite/sqlite_forge.php
+++ b/system/database/drivers/sqlite/sqlite_forge.php
@@ -136,7 +136,7 @@
 
 		if (count($primary_keys) > 0)
 		{
-			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->protect_identifiers($primary_keys)).')';
+			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->escape_identifiers($primary_keys)).')';
 		}
 
 		if (is_array($keys) && count($keys) > 0)
@@ -144,7 +144,7 @@
 			foreach ($keys as $key)
 			{
 				$key = is_array($key)
-					? $this->db->protect_identifiers($key)
+					? $this->db->escape_identifiers($key)
 					: array($this->db->escape_identifiers($key));
 
 				$sql .= ",\n\tUNIQUE (".implode(', ', $key).')';
diff --git a/system/database/drivers/sqlite3/sqlite3_forge.php b/system/database/drivers/sqlite3/sqlite3_forge.php
index 84651ab..f8bd116 100644
--- a/system/database/drivers/sqlite3/sqlite3_forge.php
+++ b/system/database/drivers/sqlite3/sqlite3_forge.php
@@ -143,7 +143,7 @@
 
 		if (count($primary_keys) > 0)
 		{
-			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->protect_identifiers($primary_keys)).')';
+			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->escape_identifiers($primary_keys)).')';
 		}
 
 		if (is_array($keys) && count($keys) > 0)
@@ -151,7 +151,7 @@
 			foreach ($keys as $key)
 			{
 				$key = is_array($key)
-					? $this->db->protect_identifiers($key)
+					? $this->db->escape_identifiers($key)
 					: array($this->db->escape_identifiers($key));
 
 				$sql .= ",\n\tUNIQUE (".implode(', ', $key).')';
diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index 559746e..e6f7e1a 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -103,7 +103,7 @@
 
 		if (count($primary_keys) > 0)
 		{
-			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->protect_identifiers($primary_keys)).')';
+			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->escape_identifiers($primary_keys)).')';
 		}
 
 		if (is_array($keys) && count($keys) > 0)
@@ -111,7 +111,7 @@
 			foreach ($keys as $key)
 			{
 				$key = is_array($key)
-					? $this->db->protect_identifiers($key)
+					? $this->db->escape_identifiers($key)
 					: array($this->escape_identifiers($key));
 
 				$sql .= ",\n\tFOREIGN KEY (".implode(', ', $key).')';