Active records Distinct() Problem

[eluser]Radiart[/eluser]

Code:

$this->db->distinct();
$this->db->select('content.title, comments.id_usera, comments.id_content, comments.id_content_type, comments.created_date');
$this->db->join('content', 'content.id_content = comments.id_content');
$this->db->group_by(array('created_date','id_content_type','id_content'));
$this->db->orderby('comments.created_date', "desc");
$this->db->limit(10);
$query = $this->db->get($this->table_name);
$result = $query->result();
return $result;

Why distinct not working?

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