要查询DynamicComposite列，查询将如下所示
ColumnFamily<String, DynamicComposite> columnFamilyEntity = ColumnFamily.newColumnFamily(columnFamily,
StringSerializer.get(), DynamicCompositeSerializer.get(), ByteSerializer.get());
RowQuery<String, com.netflix.astyanax.model.DynamicComposite> rowQuery = keyspace.prepareQuery(columnFamilyEntity).getKey(rowKey);
com.netflix.astyanax.model.DynamicComposite startRange = getStartComposite(startComponentNames);
com.netflix.astyanax.model.DynamicComposite endRange = getEndComposite(endComponentNames);
RangeBuilder rangeBuilder = new RangeBuilder();
rangeBuilder.setStart(startRange,DynamicCompositeSerializer.get());
rangeBuilder.setEnd(endRange,DynamicCompositeSerializer.get());
rangeBuilder.setReversed(reversed);
rowQuery.withColumnRange(rangeBuilder.build());
ColumnList<com.netflix.astyanax.model.DynamicComposite> queryResultCols = rowQuery.execute().getResult();
如果我只想查询DynamicComposite中的列名（或组件名）而不是列值，是否可以告诉Astyanax客户端不查询值？