@Override
  public Properties getDistributedSystemProperties() {
    Properties properties = super.getDistributedSystemProperties();
    properties.put(ConfigurationProperties.SERIALIZABLE_OBJECT_FILTER,
        "org.apache.geode.cache.query.dunit.**");
    return properties;
  }
This tests the querying using a RegionFunctionContext which provides a filter (routing keys) to
run the query on subset of buckets "locally". If query includes buckets
geode-core/src/distributedTest/java/org/apache/geode/cache/query/dunit/QueryUsingFunctionContextDUnitTest.java