code: @Test public void should_remove_by_slice_query() throws Exception {
    Long id=RandomUtils.nextLong();
    String name1="name1";
    String name2="name2";
    String name3="name3";
    manager.persist(new ValuelessClusteredEntity(new CompoundKey(id,name1)));
    manager.persist(new ValuelessClusteredEntity(new CompoundKey(id,name2)));
    manager.persist(new ValuelessClusteredEntity(new CompoundKey(id,name3)));
    manager.sliceQuery(ValuelessClusteredEntity.class).partitionComponents(id).fromClusterings(name2).toClusterings(name2).remove();
    List<ValuelessClusteredEntity> result=manager.sliceQuery(ValuelessClusteredEntity.class).partitionComponents(id).get();
    assertThat(result).hasSize(2);
    assertThat(result.get(0).getId().getName()).isEqualTo(name1);
    assertThat(result.get(1).getId().getName()).isEqualTo(name3);
  }
  