You should use
--tdb=PATH_TO_ASSEMBLER_FILE
instead of --loc if you have such a file with more complex settings than
just a location.
On 22.01.20 10:57, Élie Roux wrote:
> Dear all,
>
> I'm trying to run tdbquery on my triple store which has a UnionGraph
> (assembler attached), but it seems that even the most simple query
> doesn't work:
>
> SELECT ?subject ?predicate ?object
> WHERE {
> ?subject ?predicate ?object
> }
> LIMIT 25
>
> Looking at the results, it seems that tdbquery is running a
> quadpattern in <urn:x-arq:DefaultGraphNode>, which makes the query
> return no result:
>
> $ tdbquery --explain --time
> --loc=/usr/local/fuseki/base/databases/newcore/ --query
> /tmp/dumbselect.arq
>
> 09:45:47 INFO exec :: QUERY
> SELECT ?subject ?predicate ?object
> WHERE
> { ?subject ?predicate ?object }
> LIMIT 25
> 09:45:47 INFO exec :: ALGEBRA
> (slice _ 25
> (project (?subject ?predicate ?object)
> (quadpattern (quad <urn:x-arq:DefaultGraphNode> ?subject
> ?predicate ?object))))
> 09:45:47 INFO exec :: TDB
> (slice _ 25
> (project (?subject ?predicate ?object)
> (quadpattern (quad <urn:x-arq:DefaultGraphNode> ?subject
> ?predicate ?object))))
> 09:45:47 INFO exec :: Execute :: ?subject ?predicate
> ?object
> --------------------------------
> | subject | predicate | object |
> ================================
> --------------------------------
> Time: 0.146 sec
>
>
> Ideally I would like to be able to test my usual queries in tdbquery
> (without adding some GRAPH information). I can't find a way to specify
> the UnionGraph pattern (no --graph argument like in tdbstats). Is
> there a way to make it work?
>
> Best,
