.add(Restrictions.in("hash.hashTag",
new String[] { tagName }))));
final DetachedCriteria criteria = DetachedCriteria.forClass(
Poll.class, "poll");
criteria.add(Subqueries.propertyIn("poll.pollId", detached));
criteria.addOrder(Order.desc("poll.createDate"));
criteria.add(Restrictions.eq("publish", Boolean.TRUE));
calculateSearchPeriodsDates(period, criteria, "createDate");
ProjectionList projList = Projections.projectionList();
projList.add(Projections.groupProperty("createDate"));