Developers have difficulty debugging SPARQL queries because the error messages are not uniform enough and SPARQL editors are not able to catch correctly these messages.
And most importantly, error messages disappear between SPARQL services in federated queries. The SPARQL services MUST forward the error messages of sub-queries.
Developers have difficulty debugging SPARQL queries because the error messages are not uniform enough and SPARQL editors are not able to catch correctly these messages. And most importantly, error messages disappear between SPARQL services in federated queries. The SPARQL services MUST forward the error messages of sub-queries.