* The rectangle area that will be used as a reference point for precise filtering.
*
* @return Aggregated and filtered items returned from Amazon DynamoDB.
*/
private GeoQueryResult dispatchQueries(List<GeohashRange> ranges, GeoQueryRequest geoQueryRequest) {
GeoQueryResult geoQueryResult = new GeoQueryResult();
ExecutorService executorService = config.getExecutorService();
List<Future<?>> futureList = new ArrayList<Future<?>>();
for (GeohashRange outerRange : ranges) {