Use protect_identifiers() instead of _escape_identifiers() in CI_DB_postgre_forge
diff --git a/system/database/drivers/postgre/postgre_forge.php b/system/database/drivers/postgre/postgre_forge.php
index f9c79bf..6030adf 100644
--- a/system/database/drivers/postgre/postgre_forge.php
+++ b/system/database/drivers/postgre/postgre_forge.php
@@ -172,7 +172,7 @@
 			}
 		}
 
-		$sql .= $this->db->_escape_identifiers($table).' ('.$this->_process_fields($fields, $primary_keys);
+		$sql .= $this->db->protect_identifiers($table).' ('.$this->_process_fields($fields, $primary_keys);
 
 		if (count($primary_keys) > 0)
 		{
@@ -220,7 +220,7 @@
 	 */
 	public function _drop_table($table)
 	{
-		return 'DROP TABLE IF EXISTS '.$this->db->_escape_identifiers($table).' CASCADE';
+		return 'DROP TABLE IF EXISTS '.$this->db->protect_identifiers($table).' CASCADE';
 	}
 
 	// --------------------------------------------------------------------