On 15/12/2020 14:33, Mikael Pesonen wrote:
Hi,
I am querying subclasses of class (here id:365852007) which belongs to
RDF collection like this
id:1 rdf:type owl:Class ;
rdfs:subClassOf [ owl:intersectionOf ( ... id:365852007 ... ) ] ;
skos:prefLabel "something"@en .
id:2 rdf:type owl:Class ;
rdfs:subClassOf [ owl:intersectionOf ( ... id:365852007 ... ) ] ;
skos:prefLabel "something else"@en .
... denotes random number of other elements in the list.
SPARQL:
select * where
{
?subclass rdfs:subClassOf [ owl:intersectionOf /rdf:rest*/rdf:first
id:365852007 ] .
?subclass skos:prefLabel ?label .
Try breaking the pattern up:
?Z rdf:rest*/rdf:first id:365852007 .
?X owl:intersectionOf ?Z .
?subclass rdfs:subClassOf ?X .
?subclass rdfs:label ?label .
and use 3.17.0
}
This is slow (~10 secs) and we need to extend the query to subclasses of
the subclasses and so on.
Is there any faster way to get this done?
Thanks!
