ArthurPSmith added a comment.
Ok, I got federation to work - sort of. From the main query service I can
query the scholarly subgraph - but if I try to use the resulting values I
always get a timeout.
select ?author WHERE {
SERVICE <https://query-scholarly-experimental.wikidata.org/sparql> {
wd:Q56977964 wdt:P50 ?author .
}
}
works fine, but even
select ?author ?b ?c WHERE {
SERVICE <https://query-scholarly-experimental.wikidata.org/sparql> {
wd:Q56977964 wdt:P50 ?author .
}
?author ?b ?c .
} LIMIT 1
times out. What's going on here???
TASK DETAIL
https://phabricator.wikimedia.org/T356773
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To: Sannita, ArthurPSmith
Cc: ArthurPSmith, Sj, dcausse, valerio.bozzolan, tfmorris, Gehel, Aklapper,
Danny_Benjafield_WMDE, Astuthiodit_1, karapayneWMDE, Invadibot, maantietaja,
ItamarWMDE, Akuckartz, Nandana, Lahi, Gq86, GoranSMilovanovic, QZanden, EBjune,
KimKelting, LawExplorer, _jensen, rosalieper, Scott_WUaS, Wikidata-bugs, aude,
Mbch331
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