code: protected List<Object> findByRelationQuery(EntityMetadata m, String columnName, Object columnValue, Class clazz,
          CassandraDataHandler dataHandler) {
          return cqlClient.findByRelationQuery(m, columnName, columnValue, clazz, dataHandler);
      }
docs: Find List of objects based on value {@columnValue} of column {@columnName}.
  
  @param m
  the m
  @param columnName
  the column name
  @param columnValue
  the column value
  @param clazz
  the clazz
  @param dataHandler
  the data handler
  @return the list