339 [SPARQL 1.1] - Parser and AST not exist and exist#445
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MaillPierre merged 2 commits intoMay 20, 2026
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…s and Add Exception
prbblrypier
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I added tests for !EXISTS and !NOT EXISTS in FILTER. |
remiceres
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Apr 30, 2026
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MaillPierre
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May 18, 2026
| QueryAst ast = parser.parse(""" | ||
| SELECT * WHERE { | ||
| ?s ?p ?o . | ||
| FILTER(!EXISTS { ?s ex:email ?e }) |
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Just a question, why a ! here ?
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I would say that it's to test Not over Exists, and to make sure the parser accepts FILTER(!EXISTS{}. In the future when we evaluate the SPARQL query it should give the same result as FILTER NOT EXISTS {}, but it does not produce the same AST
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Added BooleanExpressionAst to NotExist and Exist record.
Added a throw new QueryEvaluationException when poping exist or not exist pattern