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,

Maarten




On 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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