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
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 _______________________________________________ Wikibase Community User Group mailing list -- wikibaseug@lists.wikimedia.org To unsubscribe send an email to wikibaseug-leave@lists.wikimedia.org
Thank you, Maarten. When I issue
SELECT ?s ?p ?o WHERE { ?s ?p ?o }
I get s p o https://[our.wiki.base] https://[our.wiki.base] schema:dateModified http://schema.org/dateModified 21 December 2024
... rather than what I was expecting, which would be the prefixed subject-predicate-object triples For 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, Michael
On 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,
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 _______________________________________________ Wikibase Community User Group mailing list -- wikibaseug@lists.wikimedia.org To unsubscribe send an email to wikibaseug-leave@lists.wikimedia.org
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/READM...
Maybe others on this mailinglist can give additional tips.
Cheers,
Maarten
On Thu, Aug 21, 2025 at 2:07 AM Michael Lindsey mlindsey@berkeley.edu wrote:
Thank you, Maarten. When I issue
SELECT ?s ?p ?o WHERE { ?s ?p ?o }
I get s p o https://[our.wiki.base] schema:dateModified http://schema.org/dateModified 21 December 2024
... rather than what I was expecting, which would be the prefixed subject-predicate-object triples For 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, Michael
On 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,
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 _______________________________________________ Wikibase Community User Group mailing list -- wikibaseug@lists.wikimedia.org To unsubscribe send an email to wikibaseug-leave@lists.wikimedia.org
Thank you, Maarten. This was my issue. I am now able to see triples that have been touched in the past 24 hours. I see other notes in the README that may help me get blazegraph to completely update. The Known-issues section mentions this could have been caused by restarting an empty wikibase, which in our case definitely did happen at least once during installation. Thanks again, really! Michael
On Thu, Aug 21, 2025 at 12:30 AM Maarten Zeinstra info@ip-squared.com wrote:
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/READM...
Maybe others on this mailinglist can give additional tips.
Cheers,
Maarten
On Thu, Aug 21, 2025 at 2:07 AM Michael Lindsey mlindsey@berkeley.edu wrote:
Thank you, Maarten. When I issue
SELECT ?s ?p ?o WHERE { ?s ?p ?o }
I get s p o https://[our.wiki.base] schema:dateModified http://schema.org/dateModified 21 December 2024
... rather than what I was expecting, which would be the prefixed subject-predicate-object triples For 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, Michael
On 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,
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 _______________________________________________ Wikibase Community User Group mailing list -- wikibaseug@lists.wikimedia.org To unsubscribe send an email to wikibaseug-leave@lists.wikimedia.org
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