Olaf Hartig

Results 9 issues of Olaf Hartig

When executing the following query on the SPARQL endpoint (https://bioregistry.io/sparql), I get an empty result, which is incorrect (that is, there should be solutions for this query). ```sparql PREFIX owl:...

To reproduce the issue run the following query on the SPARQL endpoint (https://bioregistry.io/sparql). ```sparql PREFIX owl: SELECT ?o WHERE { owl:sameAs ?o } ``` The result contains invalid IRIs such...

bug

The algorithm that generates TPF responses for the index data source is incorrect for cases in which the requested triple pattern contains a specific variable multiple times. For instance, suppose...

bug

The algorithm that generates TPF responses using the Jena TDB backend is incorrect for cases in which the requested triple pattern contains a specific variable multiple times. For instance, suppose...

The algorithm that generates TPF responses using the HDT backend is incorrect for cases in which the requested triple pattern contains a specific variable multiple times. For instance, suppose the...

The mapping is defined on the following wiki page, but it is not complete yet. https://github.com/LiUGraphQL/LinGBM/wiki/Mapping-of-GraphQL-Schema-to-Relational-Schema-TODO /cc @chengsijin0817

We need an additional page in the wiki that defines the rules for reporting benchmark results. For instance, when reporting benchmark results, it needs to be explicitly mentioned: * on...

This closes #2518 The lack of built-in support for generic types of composite values such as lists and maps has been a long-standing issue for RDF and SPARQL. Together with...

### Version 5.1.0 ### Feature The lack of built-in support for generic types of composite values such as lists and maps has been a long-standing issue for RDF and SPARQL....

enhancement