Specifying transitive depth causes syntax error

Specifying a transitive depth using the brackets syntax, as described in the SPARQL 1.1 property path language within a SPARQL query causes a syntax error. An example would be:

PREFIX foaf: <http://xmlns.com/foaf/0.1/>    
select ?person where { ?x foaf:knows{1,3} ?person . }

In this case, {1,3} would cause a syntax error. Other path depth operators such as ?,+,* work as expected. Would this be an issue that can be fixed or is it a voluntary omission ?

Note that the document that you refer to says “Obsolete Draft” at the top. The property paths in the SPARQL 1.1 spec do not include this feature.


1 Like