[Wikidata-bugs] [Maniphest] [Created] T159723: NotMaterializedException when one branch of UNION binds ?variable and other branch binds ?variableLabel and label service is used

[WikidataFacts]

WikidataFacts created this task. WikidataFacts added a project: Wikidata-Query-Service. Herald added a subscriber: Aklapper. Herald added projects: Wikidata, Discovery.

TASK DESCRIPTION

SELECT ?xLabel WHERE {
  { BIND(wd:Q1 AS ?x). } UNION
  { BIND("none"@en AS ?xLabel). }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}

Query link

Stack trace (abridged):

Caused by: org.openrdf.query.QueryEvaluationException: com.bigdata.rdf.internal.NotMaterializedException: TermId(22199L)

	at com.bigdata.rdf.sail.Bigdata2Sesame2BindingSetIterator.hasNext(Bigdata2Sesame2BindingSetIterator.java:188)
	at info.aduna.iteration.IterationWrapper.hasNext(IterationWrapper.java:68)
	at org.openrdf.query.QueryResults.report(QueryResults.java:155)
	at org.openrdf.repository.sail.SailTupleQuery.evaluate(SailTupleQuery.java:76)
	at com.bigdata.rdf.sail.webapp.BigdataRDFContext$TupleQueryTask.doQuery(BigdataRDFContext.java:1713)
	... 7 more

Caused by: com.bigdata.rdf.internal.NotMaterializedException: TermId(22199L)

	at com.bigdata.rdf.internal.impl.AbstractIV.getValue(AbstractIV.java:993)
	at com.bigdata.rdf.sail.Bigdata2Sesame2BindingSetIterator.getBindingSet(Bigdata2Sesame2BindingSetIterator.java:298)
	at com.bigdata.rdf.sail.Bigdata2Sesame2BindingSetIterator.hasNext(Bigdata2Sesame2BindingSetIterator.java:140)
	... 11 more

TASK DETAIL

https://phabricator.wikimedia.org/T159723

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To: WikidataFacts
Cc: Aklapper, WikidataFacts, EBjune, merbst, Avner, debt, Gehel, D3r1ck01, Jonas, FloNight, Xmlizer, Izno, jkroll, Smalyshev, Wikidata-bugs, Jdouglas, aude, Deskana, Manybubbles, Mbch331

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