On 1/11/11 2:35 PM, Hugh Williams wrote:
Hi Peter,
Can you provide a sample query or permalink from isqarql which gives
this error please ?
The SAPRQL compiler error typically implies some form of SPARQL-FED
query is being run for which sub queries are not supported.
Peter,
SPARQL-FED is currently part of the commercial edition that sits behind
many of my PivotViewer demos. On the other hand, if you're executing
from one of our endpoints, don't alias the SPARQL output variables (e.g.
?s as ?href ..) in the sub-query (basically the inner block targeted at
the remote sparql endpoint).
Examples:
## Good
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX txn: <http://lod.taxonconcept.org/ontology/txn.owl#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX dbpedia_owl: <http://dbpedia.org/ontology/>
select distinct ?s as ?href ?order ?sciname ?authority ?cname ?year ?o
as ?image ?aligned
where { service <http://virtuoso.taxonconcept.org/sparql>
{{
select distinct ?s ?order ?sciname ?authority ?cname
?year ?o ?aligned
where {
?s rdf:type txn:SpeciesConcept.
?s txn:inDBpediaClade dbpedia_owl:Mammal.
?s foaf:depiction ?o.
?s txn:hasScientificName ?sciname.
optional {?s umbel:isAligned ?aligned}.
optional {?s txn:inCoLOrder ?order}.
optional {?s txn:yearDescribed ?year}.
optional {?s txn:commonName ?cname}.
optional {?s txn:scientificNameAuthorship
?authority}.
}
limit 1000
}}
}
##Bad
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX txn: <http://lod.taxonconcept.org/ontology/txn.owl#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX dbpedia_owl: <http://dbpedia.org/ontology/>
select distinct ?s as ?href ?order ?sciname ?authority ?cname ?year ?o
as ?image ?aligned
where { service <http://virtuoso.taxonconcept.org/sparql>
{{
select distinct ?s as ?href ?order ?sciname ?authority
?cname ?year ?o as ?image ?aligned ## note this line.
where {
?s rdf:type txn:SpeciesConcept.
?s txn:inDBpediaClade dbpedia_owl:Mammal.
?s foaf:depiction ?o.
?s txn:hasScientificName ?sciname.
optional {?s umbel:isAligned ?aligned}.
optional {?s txn:inCoLOrder ?order}.
optional {?s txn:yearDescribed ?year}.
optional {?s txn:commonName ?cname}.
optional {?s txn:scientificNameAuthorship
?authority}.
}
limit 1000
}}
}
Kingsley
Best Regards
Hugh Williams
Professional Services
OpenLink Software
Web: http://www.openlinksw.com
Support: http://support.openlinksw.com
Forums: http://boards.openlinksw.com/support
Twitter: http://twitter.com/OpenLink
On 11 Jan 2011, at 03:42, Peter DeVries wrote:
I am getting the following error when I try to run a SPARQL query on
my endpoint that does work on other virtuoso endpoints.
The error message seems to imply that I have some setting turned off?
37000 Error SP031: SPARQL compiler: The support of subquery syntax is
not enabled for the SERVICE http://lsd.taxonconcept.org/sparql (bit
0x100 is not set)
Is this something to change in the virtuoso.ini file or conductor, or
is the result of not defining a subquery, or that I am using
virtuoso-opensource.
Thanks!
-- Pete
---------------------------------------------------------------
Pete DeVries
Department of Entomology
University of Wisconsin - Madison
445 Russell Laboratories
1630 Linden Drive
Madison, WI 53706
TaxonConcept Knowledge Base <http://www.taxonconcept.org/> /
GeoSpecies Knowledge Base <http://lod.geospecies.org/>
About the GeoSpecies Knowledge Base <http://about.geospecies.org/>
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Regards,
Kingsley Idehen
President& CEO
OpenLink Software
Web: http://www.openlinksw.com
Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca: kidehen
