SPARQLRepository uses DELETE DATA with blank nodes

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Eclipse RDF4J: scalable RDF for Java

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SPARQLRepository uses DELETE DATA with blank nodes #2962

Open abrokenjester opened 3 years ago

abrokenjester commented 3 years ago

To execute the RepositoryConnection.remove(Iterable) API method, SPARQLRepository constructs a DELETE DATA request. However, when the input statements contain blank nodes, this results in an illegal SPARQL operation: DELETE DATA is not allowed to contain blank node identifiers.

abrokenjester commented 2 years ago

There's no full-proof way to support this kind of thing with SPARQL only. We should solve this issue by catching the error and wrapping it in a new error to indicate removing statements with specific blank nodes is unsupported in the SPARQL client.