> Is this a bug in the later versions of Fuseki?
Hmm ... yes, it appears it's a bug in general update processing.
The bug occurs in Jena 2.7.4 but not in Jena 2.7.3
Simpler case: the WITH and USING aren't relevant.
INSERT DATA { <x:s> <x:p> "OLD" } ;
DELETE { <x:s> <x:p> "OLD" }
INSERT { <x:s1> <x:p1> "NEW" }
WHERE { [] ?p ?o }
update --file FILE --dump
==>
Output Jena 2.7.3:
<x:s1> <x:p1> "NEW" .
Output Jena 2.7.4:
<x:s1> <x:p1> "OLD" .
Recorded as JENA-343
Andy
On 31/10/12 19:15, Elli Schwarz wrote:
Hello,
I'm using the latest version of Fuseki checked out from the trunk (revision
1404232), and I noticed the following issue.
I uploaded the following triples to a named graph <urn:test:foo>:
<urn:test:subj> <urn:test:pred1> _:b0;
<urn:test:pred2>
"foo"^^<http://www.w3.org/2001/XMLSchema#string> .
_:b0 <urn:test:pred3> "from blank
node"^^<http://www.w3.org/2001/XMLSchema#string> .
I can then run this query, which will return correct results:
select * from <urn:test:foo>
where {
<urn:test:subj> <urn:test:pred1> [
<urn:test:pred3> ?obj
].
}
It correctly returns "from blank
node"^^<http://www.w3.org/2001/XMLSchema#string> bound to ?obj. However, if I use
this same graph pattern in the following SPARQL Update script:
with <urn:test:new>
insert { <urn:test:newSubj> <urn:test:newPred> ?obj . }
using <urn:test:foo> where {
<urn:test:subj> <urn:test:pred1> [
<urn:test:pred3> ?obj
].
}
I would expect that the named graph <urn:test:new> would contain the following
triple:
<urn:test:newSubj> <urn:test:newPred> "from blank
node"^^<http://www.w3.org/2001/XMLSchema#string>
But <urn:test:new> is empty! If I replace the [] notation with a variable (?foo
in the following query), the Update script works correctly:
with <urn:test:new> insert { <urn:test:newSubj> <urn:test:newPred> ?obj . }
using <urn:test:foo> where {
<urn:test:subj> <urn:test:pred1> ?foo .
?foo <urn:test:pred3> ?obj .
}
I would expect both Update scripts to perform identically, since my
understanding is that the [] notation is a shorthand for my second Update
script with the explicit variable. Furthermore, if I run this same query in the
0.2.4 release of Fuseki, everything works correctly - the [] notation works in
the Update script. Is this a bug in the later versions of Fuseki? Incidentally,
the version of Fuseki I'm using has one modification - I added the Larq
dependency to the Fuseki pom so I could use Lucene indexing. I didn't make any
other changes to Fuseki, so while I guess it is possible that this problem
could be related to the addition of the Larq dependency, I highly doubt that my
problem has to do with it.
Thank you,
Elli
