%select graph.id, histogram(degree(vertex).degree, [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 100])
%from graph(*) group by graph.id

vertex@* = VertexOperator([], *);
degree@* = DegreeOperator([vertex@local]);
histogram@* = HistogramOperator([degree@local], degree, Integer, [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 100]);
union@1 = UnionOperator([histogram@*]);
histogramMerge@1 = HistogramMergeOperator([union@local]);