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mdesalvo / RDFSharp

Lightweight and friendly .NET library for realizing Semantic Web applications
Apache License 2.0
118 stars 26 forks source link

Incorrect handling of SPARQL Union during merge of tables #264

Closed mdesalvo closed 2 years ago

mdesalvo commented 2 years ago

During the execution of RDFQueryEngine.CombineTables, the ExtendedProperties of the last table involved in the union are overwritten by the Merge instruction by ADO.NET. These attributes should absolutely be saved and then restored.