This is a tracking ticket to list issues about federation queries on Wikidata Query Server.
May be issues of:
A status report of accessible endpoints is at federation report.
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Resolved | None | T197530 [tracking] federation query issues on Wikidata Query Server | |||
| Declined | None | T197509 Federated SPARQL queries using datos.bne.es don't allow binding | |||
| Resolved | Smalyshev | T195203 Federated SPARQL queries https://data.pdok.nl/sparql failing with error 500 | |||
| Invalid | None | T197278 SILENT not working when a federation query times-out Wikidata Query Server | |||
| Declined | None | T196798 SPARQL federated query SERVICE endpoint syntax (variable instead of uri) | |||
| Resolved | Smalyshev | T196859 Querying prohibited endpoint with SERVICE SILENT still produces an error | |||
| Resolved | Smalyshev | T196858 Allow parameters & wildcards in federation endpoint whitelists | |||
| Resolved | Smalyshev | T202785 Federation request to https://ld.stadt-zuerich.ch/query fails | |||
| Resolved | Smalyshev | T207878 Triage federation failures | |||
| Resolved | bking | T364233 add https://imagehash-sparql.wmcloud.org/sparql endpoint to wikidata federated query whitelists |
I suggest closing this as won't fix and prioritize finding a replacement for blazegraph instead.
I suggest closing this as won't fix and prioritize finding a replacement for blazegraph instead.
That would be T206560: [Epic] Evaluate alternatives to Blazegraph
Please make https://w.wiki/6m6B work by adding both https://qlever.cs.uni-freiburg.de/dblp and https://qlever.cs.uni-freiburg.de/wikidata.
according to https://github.com/ad-freiburg/qlever/discussions/588#discussioncomment-6018412
However, note that the IRIs in your example query are wrong, they should be https://qlever.cs.uni-freiburg.de/api/dblp and https://qlever.cs.uni-freiburg.de/api/wikidata
the query
https://w.wiki/6q2i is the query that should work
IMHO the documentation pointed right here. I am trying to reproduce this but only find
I am a bit confused now - I m trying the "Nominate new endpoint" button now
This page is currently fully protected and can be edited only by administrators. .... (sigh)
IMHO the documentation pointed right here.
Feel free to point to "the documentation" please as I don't know which line on which page you refer to. Please always include links - thanks.
Hurray! Can we make [[ https://github.com/WolfgangFahl/snapquery | snapquery ]]an official middlware infastructure ? I assume that would be a separate ticket again.