分页Cassandra不起作用

Question

只需从Cassandra数据库返回一个数据（实体）。

  String partitionKey = OrderPartEventKey.getHashkey(location, till); 

  String kunderaQuery = "SELECT o FROM Order o WHERE o.primaryKey.partitionkey = '"+partitionKey+"' AND  o.primaryKey.event_date >= '"+ PersistenceUtil.toStringFormat(since, "yyyy-MM-dd")+"' AND o.primaryKey.event_date <= '"+PersistenceUtil.toStringFormat(till, "yyyy-MM-dd") +"' ";
        com.impetus.kundera.query.Query query = (com.impetus.kundera.query.Query ) super.getJPAFactory().getConnection().createQuery(cqlQuery.toString(), OrderPartEvent.class);
        query.setFetchSize(500);