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Implement date time arithmetic #68

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jindrichmynarz opened this issue Jun 27, 2019 · 1 comment
Open

Implement date time arithmetic #68

jindrichmynarz opened this issue Jun 27, 2019 · 1 comment

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@jindrichmynarz
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It would be useful to have date time arithmetic implemented in Halyard. SPARQL 1.1 supports it only for numeric data types, see XPath arithmetic. More details can be found in w3c/sparql-dev#32 and w3c/sparql-dev#55. The implementation can use the tests here.
@pulquero
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pulquero commented Jul 2, 2019

See https://github.com/eclipse/rdf4j-storage/blob/master/evaluation/src/main/java/org/eclipse/rdf4j/query/algebra/evaluation/impl/ExtendedEvaluationStrategy.java but note eclipse-rdf4j/rdf4j#1033.

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@jindrichmynarz @pulquero