Dear Michael,I am not a configuration expert, however if you only get the one triple back and you indicated that you already populated your Wikibase using QuickStatements then I believe your configuration is faulty. The result of that query should give you all triples in your Blazegraph store, regardless of their prefixes. It seems like Blazegraph is not being updated properly from the Wikibase instance. Have a look at the Readme on WDQS to see if you have missed something in the configuration: https://github.com/wmde/wikibase-release-pipeline/blob/main/build/wdqs/README.md#Known-issuesMaybe others on this mailinglist can give additional tips.Cheers,MaartenOn Thu, Aug 21, 2025 at 2:07 AM Michael Lindsey <mlindsey@berkeley.edu> wrote:Thank you, Maarten. When I issueSELECT ?s ?p ?o WHERE { ?s ?p ?o }I get
s p o<https://[our.wiki.base]> schema:dateModified 21 December 2024 ... rather than what I was expecting, which would be the prefixed subject-predicate-object triplesFor the minimum viable triplet query, should I need to specify prefixes in the WHERE clause?Once I get this bit working, I expect I'll want to set them in a config file as you have.I'm returning to SPARQL after some time, so I may be missing something obvious.At this point, I really am just trying to get the minimum viable query working in the WDQS GUI.Cheers,MichaelOn Mon, Aug 18, 2025 at 1:00 AM Maarten Zeinstra <info@ip-squared.com> wrote:Dear Michael,Did you do: "SELECT ?p ?o ?s WHERE {?p ?o ?s}"?and did the prefixes you expected show up in the results?I know we had some issues as well with our Wikibase instance. We ended up overwriting the default prefixes with our own. In our instance we have a file in config/wdqs/prefixes-prod.conf that has our prefixes that we load in YML under...wdqs:
volumes:
- ./config/wdqs/prefixes-prod.conf:/wdqs/prefixes.conf:ro...Hope this helps.Best,MaartenOn Fri, Aug 15, 2025 at 5:46 PM Michael Lindsey via Wikibase Community User Group <wikibaseug@lists.wikimedia.org> wrote:Hi Wikibase friends,
We have successfully deployed WBS using Docker, and are moving some data into it using Quickstatements. I'd like to see that data returned from SPARQL but am having trouble getting my most basic all-triples query to work. I wonder if it might be prefixes. Can someone with a working instance share the working structure for prefix URLs on their instance? If this is somewhere in the docs, I must have missed it.
Cheers,
Michael Lindsey
Library, School of Law
University of California, Berkeley
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