picker in tableView, repeat selectedValue

Hello

I'm working a picker on a tableViewRow, works perfect, but when one pickerRow Select Product, also this is repeated in row 4, and so threes. Any idea why this happens?

var tipo = Ti.UI.createPicker({
        width:'15%',
        right:30,
        top:0
    });
 
    caja.add(tipo);
 
    /*
    var columTipo = Ti.UI.createPickerColumn({
 
    });
 
    tipo.add(columTipo);
    */
    //var rowPromo = [];
    var data = [];
    var db = Ti.Database.open("elite.db","elite");
    var selectPromo = db.execute('select * from PROMOTION_TYPES');
    var i = 0;
    while(selectPromo.isValidRow()) {
        i++;
        var rowPromo = Ti.UI.createPickerRow({title:selectPromo.fieldByName('name')});
        //tipo[obj.numero].add(rowPromo[i]);
        data.push(rowPromo);
        selectPromo.next();
    }
 
    tipo.add(data);
    tipo.selectionIndicator = true;
 
    tipo.addEventListener('change',function(e) {
        //e.setBackgroundColor('#ccc');
        alert('Promo'+e.selectedValue);
    })