Querying All Named Graphs by Default
Amazon Neptune associates every triple with a named graph. The default graph is defined as the union of all named graphs.
If you submit a SPARQL query without explicitly specifying a graph via the
GRAPH keyword or constructs such as FROM NAMED, Neptune always
considers all triples in your DB instance. For example, the following query returns all
triples from a Neptune SPARQL endpoint:
SELECT * WHERE { ?s ?p ?o }
Triples that appear in more than one graph are returned only once.
For information about the default graph specification, see the RDF Dataset
