Dear all, Marco and I would like to implement a new aggregation in ARQ.
We understand that a textual query is translated in expressions and, then, into an algebraic execution plan. We found the aggregation expressions [1], but we cannot find the operators that implement them in [2] Can you help us? Bests, Emanuele [1] http://jena.apache.org/documentation/javadoc/arq/com/hp/hpl/jena/sparql/expr/aggregate/package-frame.html [2] http://jena.apache.org/documentation/javadoc/arq/com/hp/hpl/jena/sparql/algebra/op/package-frame.html -- prof. Emanuele Della Valle DEIB - Politecnico di Milano m. +393389375810 w. http://emanueledellavalle.org
