[
https://issues.apache.org/jira/browse/MARMOTTA-617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14936900#comment-14936900
]
Dietmar Glachs commented on MARMOTTA-617:
-----------------------------------------
Sure, you can find the query in the description of the issue - see above. Then
you'll need a simple SKOS-Thesaurus like the following:
{code:xml}
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix : <http://sample/vocabulary/> .
:Vocabulary a skos:ConceptScheme;
skos:hasTopConcept :TopLevelConceptA;
skos:hasTopConcept :TopLevelConceptB;
rdfs:label "A simple Vocabulary"@en.
:TopLevelConceptA a skos:Concept;
skos:inScheme :Vocabulary;
skos:topConceptOf :Vocabulary;
skos:prefLabel "Label Concept a"@en.
:TopLevelConceptB a skos:Concept;
skos:inScheme :Vocabulary;
skos:topConceptOf :Vocabulary;
skos:narrower :NarrowerConceptB;
skos:prefLabel "Label Concept b"@en.
:NarrowerConceptB a skos:Concept;
skos:inScheme :Vocabulary;
skos:broader :TopLevelConceptB;
skos:prefLabel "Label Concept b"@en.
{code}
which you may import in a graph (for example <http://host/context/graph>).
Running the above query will then show a proper value for ?children including
data type.
Without the patch, no datatype is assigned, and for example SKOSjs does not
work properly.
> SPARQL-command with "native" sparql.strategy setting fails
> ----------------------------------------------------------
>
> Key: MARMOTTA-617
> URL: https://issues.apache.org/jira/browse/MARMOTTA-617
> Project: Marmotta
> Issue Type: Bug
> Components: KiWi Triple Store
> Affects Versions: 3.3.0
> Reporter: Dietmar Glachs
>
> The following SPARQL-Command fails when using the configuration setting
> {{native}} for {{sparql.strategy}}:
> {code}
> SELECT DISTINCT ?uri ?title ?children {
> GRAPH <http://host/context/graph> {
> ?uri a <http://www.w3.org/2004/02/skos/core#ConceptScheme> .
> OPTIONAL {
> ?uri <http://www.w3.org/2000/01/rdf-schema#label> ?title .
> FILTER (lang(?title) = 'en')
> }
> BIND ( EXISTS { ?uri <http://www.w3.org/2004/02/skos/core#hasTopConcept>
> ?_top } AS ?children )
> }
> }
> {code}
> when using {{sparql.strategy=memory}} the query works!
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
