Extract info from sqlite with AutoColpeteTextView

I use this code:

 AutoCompleteTextView autorif = (AutoCompleteTextView) findViewById(R.id.autoComplete);

    ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, db.getWhere());
    autorif.setAdapter(adapter);


    autorif.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> adapterView, View view, int i, long l)
        {
            val = (String) adapterView.getItemAtPosition(i);
        }
    }

all is ok, i read all value in my autocomplete with this function:

public List<String> getWhere()
{

    SQLiteDatabase db=helper.getReadableDatabase();
    Cursor crs=db.query("where", null, null, null, null, null, null);

   List<String> res=new ArrayList<String>();

    while(crs.moveToNext())
    {
        String tmp=crs.getString(crs.getColumnIndex("rif_name"));
        res.add(tmp);

    }
    crs.close();
    return res;
}

variable "val" contains a good value of rif_name.

But in my table (where) I have other value (_id, rif_name, position). How can I "extract" or return other value, when i click on item of autocomplete? Thanks!