Query to filter duplicates does not work

0

Well, I am trying to filter the duplicates of a table with grocery and it seems that it completely ignores my query, I have tried with distinct() , group by() and even both at the same time.

What I want is to show the table without duplicates.

What am I doing wrong?

Controller

 $this->Fechacita_Model->delete_duplicaterow();

Model

public function delete_duplicaterow() {
     $this->db->select('c.intervaloHorario', 'ci.cita');
     $this->db->distinct();
     $this->db->from('intervaloshorarios c');
     $this->db->join('citas ci', 'c.idIntervaloHorario = ci.idIntervaloHorario', 'right');
     $this->db->group_by('c.intervaloHorario','ci.cita');
     $query = $this->db->get();

     return $query->num_rows();
}

DB

Capture

    
asked by Jose 29.05.2017 в 14:51
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0 answers