Lucas_Werkmeister_WMDE added a comment.
Yeah, I also thought of encoding the statement ID in it, but the STRSTARTS is
a bit ugly. Also, this doesn’t provide an obvious path for unknown values used
in qualifiers and references… what could those use? (I assume the main
requirement for the updater is that, whatever these IDs look like, they should
remain stable between RDF exports of different revisions?)
For the STRSTARTS, we could of course throw more triples at the wall to solve
the problem –
wd:Q2 wdt:P2 wdunk:Q2-6657d0b5-4aa4-b465-12ed-d1b8a04ef658.
wdunk:Q2-6657d0b5-4aa4-b465-12ed-d1b8a04ef658 a wikibase:UnknownValue.
– but that seems wasteful, and there might also be queries relying on the
fact that the current “unknown value” blank nodes have no outgoing triples (not
sure). Perhaps we could hide the `STRSTARTS()` in a function? That could
improve readability a lot:
?human wdt:P106 ?occupation.
FILTER(wikibase:isUnknownValue(?occupation))
I’m not sure how well that would perform, though. (Currently, I believe we
only have one custom function: `wikibase:decodeUri`, introduced in T168923: Add
urldecode function <https://phabricator.wikimedia.org/T168923>.)
TASK DETAIL
https://phabricator.wikimedia.org/T244341
EMAIL PREFERENCES
https://phabricator.wikimedia.org/settings/panel/emailpreferences/
To: Lucas_Werkmeister_WMDE
Cc: Lucas_Werkmeister_WMDE, Aklapper, dcausse, darthmon_wmde, Nandana, Lahi,
Gq86, GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, _jensen,
rosalieper, Scott_WUaS, Jonas, Xmlizer, jkroll, Smalyshev, Wikidata-bugs,
Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
_______________________________________________
Wikidata-bugs mailing list
Wikidata-bugs@lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikidata-bugs
