i want help postgre codeigniter

[eluser]Unknown[/eluser]
hellow everybody

well i have a query like this

Code:

$this->db->select("Type_Language.Description")
          ->from("Type,Type_Language")
          ->where("Type_Language.Type_Id = Type.Id")
          ->where("Type_Language.Language","en_US");

so this query return:
select "Type_Language"."Description" from "Type_Language" where "Type_Language"."Type_Id" = "Type.Id"
where "Type_Language.Language" = 'en_Us';

in postgree the table and field are wrap in double "" like this "User"."Id"
in the example return "Type.Id" but i want "Type"."Id"

help me please