how to data bind unique values from datatable columns as options to select2 boxes? Now all the values are bound.So same options are repeated.

 select2::create(array(
                "multiple"=>true,
                "name"=>"تنتهيخلاليوم",
                "placeholder"=>"select ",
                 "dataStore"=>$new,
                 "dataBind"=>array(
                                 "text"=>"end_in_wd",                            
//all value from data table column "end_in_wd" as option -need only unique values
                                  "value"=>"end_in_wd",
                                  ),
           
                "attributes"=>array(
                    "class"=>"form-control"
                )
            ));

Thank you, it worked with 'distinct' sql .