DISTINCT Does not work as a keyword in codeigniter....

[eluser]RaviDalal[/eluser]
I am writing following codeigntier function using which i want to fetch distinct record for contact_type field..........

function getdetaildatabyid($id)
{
$this->db->select("contact_details_id,contact_id,contact_type,contact_value");
$this->db->from("tbl_contact_details");
$this->db->where("tbl_contact_details.contact_id",$id);
$query = $this->db->get();
$data = $query->result();
echo $this->db->last_query();die;
return $data;
}


In above given code where should i put distinct to fetch only single occurance of contact_type record????

Please Help.......

Thnx in advance

Ravi Dalal