Cassandra复合 - 查询部分列

Question

对于存储为DynamicCompositeColumns（Long，UTF8）的数据，如下所示，

rowkey: t1
column1: 1456394880000:test1:a1, value=...
column2: 1457273146000:test1:a3, value=....
column3: 1457273146000:test2:a3, value=...

1.如何获得与列的第二个组件值（例如test1）匹配的所有列，而不考虑第一个组件值。

以下相等比较不起作用。

    startComposite.addComponent(Long.MINVALUE, LongSerializer.get(), Operator.Equals));
    startComposite.addComponent("test1", StringSerializer.get(), Operator.Equals));

    endComposite.addComponent(Long.MAXVALUE, LongSerializer.get(), Operator.GreaterEquals)); 
    endComposite.addComponent("test1", StringSerializer.get(), Operator.GreaterEquals));

2。如何获得与component2＆amp;匹配的特定列component3值（例如test1＆amp; a3）

    startComposite.addComponent(Long.MINVALUE, LongSerializer.get(), Operator.Equals));
    startComposite.addComponent("test1", StringSerializer.get(), Operator.Equals));
    startComposite.addComponent("a3", StringSerializer.get(), Operator.Equals));

    endComposite.addComponent(Long.MAXVALUE, LongSerializer.get(), Operator.GreaterEquals)); 
    endComposite.addComponent("test1", StringSerializer.get(), Operator.EQUALS));
    endComposite.addComponent("a3", StringSerializer.get(), Operator.GreaterEquals));