SPARQL 1.1 Status

Based on Lee Feigenbaum’s breakdown of SPARQL 1.1 features, these are best guesses as to the status of those features in RDF::Query and RDF::Endpoint checked into github as of 2010.06.30.

Everything needs more testing as we don’t have a 1.1 test suite yet…

Projected Expressions	100%
Subqueries	100%
Negation	100%
Aggregates	100%
Service Description	100%
Update Language	95%	See issues list below.
Update Protocol	0%	Updates can be submitted to an RDF::Endpoint with POST using the query operation (SPARQL Protocol 1.0), but there’s no response body on success. Protocol 1.1 has not been implemented yet.
HTTP RDF Update	80%	KjetilK is working on this in RDF::Query::HTTPBindings.
Property Paths	100%	Will track the evolving semantics of negated property classes and result cardinality.
Basic Federated Query	100%
Common Functions	100%	COALESCE, IRI, URI, STRLANG, STRDT, IF, BNODE, IN and NOT IN. Will track new functions as the working group agrees on them.
Entailment Regimes	N/A	No current plans to implement entailment.

Known issues:

• Blank nodes in DELETE {} WHERE {} and DELETE WHERE {} don’t follow the semantics of SPARQL 1.1 Update.

There is a sample SPARQL 1.1 Endpoint at myrdf.us, but it’s not guaranteed to stay up.