Inventory of existing extensions to SPARQL 1.1

An inventory of existing extensions

Eclipse RDF4J

less strict datatype restrictions in comparison operators

Example:

FILTER("1999"^^xsd:gYear < "2009-01-01T20:20:20Z"^^xsd:dateTime) => true (strict semantics is type error)

extended mathematics operations on date/time/duration datatypes

Examples:

"2013-11"^^xsd:gYearMonth + "P1Y1M"^^xsd:yearMonthDuration => "P2Y1M"^^xsd:yearMonthDuration "12"^^xsd:Integer * "P1Y"^^:xsd:yearMonthDuration => "P12Y"^^xsd:yearMonthDuration

GeoSPARQL operators

See GeSPARQL specs

full-text search extensions

Example:

?subj search:matches [
          search:query "search terms...";
          search:property my:property;
          search:score ?score;
          search:snippet ?snippet ] .