[Virtuoso-users] character encoding error for uri/iri

[Roland Cornelissen]

Hi,

I have a VOS7 store with data containing links to nl.dbpedia.org. These
links are imported as ntriples, like this:

<http://nl.dbpedia.org/resource/Aarón_Galindo>
<http://purl.org/dc/terms/subject> <http://data.metamatter.nl/spice/Voetbal>

Please note the 'unescaped' ó in Aarón in the dbpedia resource IRI. Now
when I do a federated query to nl.dbpedia.org like this:
SELECT * {
  SERVICE <http://data.metamatter.nl/sparql> {
    GRAPH <http://data.metamatter.nl/spice/>{
      ?s a dbpo:Person . }}
  SERVICE <http://nl.dbpedia.org/sparql> {
    ?s dbpo:abstract ?abstract .
   }
} limit 10

I get an error complaining about the ó :

Virtuoso RDFZZ Error DB.DBA.SPARQL_REXEC('http://nl.dbpedia.org/sparql', ...) 
returned Content-Type 'text/plain' status 'HTTP/1.1 400 Bad Request
'
Virtuoso 37000 Error SP030: SPARQL compiler, line 0: Bad character '\' (0x5c) 
in SPARQL expression at '\'

SPARQL query:
define sql:big-data-const 0 define output:format "HTTP+XML 
application/sparql-results+xml" define output:dict-format "HTTP+TTL 
text/rdf+n3"  SELECT ?abstract
 WHERE { 
     GRAPH <http://data.metamatter.nl/spice/> { 
<http://nl.dbpedia.org/resource/Aar\u00F3n_Galindo> 
<http://dbpedia.org/ontology/abstract> ?abstract . } }

SPARQL query:
define sql:big-data-const 0 
#output-format:text/html
define sql:signal-void-variables 1 define input:default-graph-uri 
<http://data.metamatter.nl/spice/> PREFIX spice: 
<http://data.metamatter.nl/spice/>
SELECT * {
  SERVICE <http://data.metamatter.nl/sparql> {
    GRAPH <http://data.metamatter.nl/spice/>{
      ?s a dbpo:Person . }}
  SERVICE <http://nl.dbpedia.org/sparql> {
    ?s dbpo:abstract ?abstract .
#    ?wiki foaf:primaryTopic ?s .
   }
} limit 10


Somewhere in the translation the ó gets escaped to \u00F3, which is
apparently wrong.
Question is, can I fix this? Is it config? Or is it code, as in bug?

Thanks,
Roland





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