src/main/java/com/googlecode/objectify/impl/QueryEngine.java
public <T> QueryResults<T> queryHybrid(final KeyQuery query, final int chunkSize) {
		log.trace("Starting hybrid query");

		final QueryResults<Key<T>> results = new KeyQueryResults<>(ds.run(query));

		return new HybridQueryResults<>(loader.createLoadEngine(), results, chunkSize);
	}
public <T> QueryResults<T> queryHybrid(final KeyQuery query, final int chunkSize) {
		log.trace("Starting hybrid query");

		final QueryResults<Key<T>> results = new KeyQueryResults<>(ds.run(query));

		return new HybridQueryResults<>(loader.createLoadEngine(), results, chunkSize);
	}
Perform a keys-only plus batch gets.