select t.id, t.name, t.votes 
from ( 
       select r.id, r.name, count(v.id_user) as votes 
       from restaurants r, 
            user_votes v 
       where v.id_restaurant = r.id 
         and v.date = ?1 
       group by r.id, r.name 
     ) t 
where t.votes = 
      (select max(votes) 
       from (select count(v2.id_user) as votes 
             from user_votes v2 
             where v2.date = ?1 
             group by v2.id_restaurant))