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Posted to dev@jena.apache.org by "Richard Walker (JIRA)" <ji...@apache.org> on 2018/09/07 02:47:00 UTC
[jira] [Updated] (JENA-1600) arq not finding content included with
namedGraph
[ https://issues.apache.org/jira/browse/JENA-1600?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Richard Walker updated JENA-1600:
---------------------------------
Affects Version/s: Jena 3.3.0
> arq not finding content included with namedGraph
> ------------------------------------------------
>
> Key: JENA-1600
> URL: https://issues.apache.org/jira/browse/JENA-1600
> Project: Apache Jena
> Issue Type: Bug
> Affects Versions: Jena 3.1.1, Jena 3.3.0
> Reporter: Richard Walker
> Priority: Major
>
> I think this is similar to JENA-1261 and JENA-1419. I am using 3.8.0, but it seems this issue arose in 3.1.1, was fixed in 3.2.0, and then arose again in 3.3.0 and continues with subsequent releases.
> Consider an empty file {{empty.ttl}}, and a file {{control.ttl}} with these contents:
> {code}
> @prefix void: <http://rdfs.org/ns/void#> .
> @prefix ov: <http://open.vocab.org/terms/> .
> <https://gcmdservices.gsfc.nasa.gov/platforms-dataset> a void:Dataset .
> <https://gcmdservices.gsfc.nasa.gov/platforms-dataset> void:uriSpace <https://gcmdservices.gsfc.nasa.gov/> .
> {code}
> and this trivial query {{summary-test-select.arq}}:
> {code}
> SELECT ?s ?p ?o
> FROM NAMED <control.ttl>
> WHERE {
> GRAPH <control.ttl> {
> ?s ?p ?o
> }
> }
> {code}
> Now compare the output of some releases from 3.1.0 onwards. First, 3.1.0:
> {code}
> ~/Software/apache-jena-other-releases/apache-jena-3.1.0/bin/arq --data=empty.ttl --query=summary-test-select.arq --namedGraph=control.ttl --base .
> ------------------------------------------------------------------------------------------------------------------------------------------------------
> | s | p | o |
> ======================================================================================================================================================
> | <https://gcmdservices.gsfc.nasa.gov/platforms-dataset> | <http://rdfs.org/ns/void#uriSpace> | <https://gcmdservices.gsfc.nasa.gov/> |
> | <https://gcmdservices.gsfc.nasa.gov/platforms-dataset> | <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> | <http://rdfs.org/ns/void#Dataset> |
> ------------------------------------------------------------------------------------------------------------------------------------------------------
> {code}
> Now 3.1.1:
> {code}
> ~/Software/apache-jena-other-releases/apache-jena-3.1.1/bin/arq --data=empty.ttl --query=summary-test-select.arq --namedGraph=control.ttl --base .
> -------------
> | s | p | o |
> =============
> -------------
> {code}
> Now 3.2.0:
> {code}
> ~/Software/apache-jena-other-releases/apache-jena-3.2.0/bin/arq --data=empty.ttl --query=summary-test-select.arq --namedGraph=control.ttl --base .
> ------------------------------------------------------------------------------------------------------------------------------------------------------
> | s | p | o |
> ======================================================================================================================================================
> | <https://gcmdservices.gsfc.nasa.gov/platforms-dataset> | <http://rdfs.org/ns/void#uriSpace> | <https://gcmdservices.gsfc.nasa.gov/> |
> | <https://gcmdservices.gsfc.nasa.gov/platforms-dataset> | <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> | <http://rdfs.org/ns/void#Dataset> |
> ------------------------------------------------------------------------------------------------------------------------------------------------------
> {code}
> And 3.3.0:
> {code}
> ~/Software/apache-jena-3.3.0/bin/arq --data=empty.ttl --query=summary-test-select.arq --namedGraph=control.ttl --base .
> -------------
> | s | p | o |
> =============
> -------------
> {code}
> Same empty result with 3.4.0 and 3.8.0.
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