This page provides an overview and links to further resources about SPARQL extensions supported in dotNetRDF.
Full Text Query
Full Text Query is an extension which allows full text search of RDF data to be integrated into SPARQL queries, please see the Full Text Querying with SPARQL page for more information on this.
LET is a extension that predates the SPARQL 1.1
BIND clause, it performs assignment like
BIND but has slightly different semantics in that if you use
LET to assign to an existing variable it acts like a
FILTER rather than being a syntax error.
Generally it is preferred that you use
BIND wherever possible since this is standard SPARQL and will be portable across different SPARQL implementations.
Note: We intend to remove
LET at some point in the future now it is superseded by standard SPARQL 1.1
We support a wide variety of extension functions and aggregates, see Function Libraries for available libraries.