presto-main/src/main/java/io/prestosql/sql/analyzer/Analysis.java/Analysis/GroupingSetAnalysis
class Analysis:        public GroupingSetAnalysis(
                List<Set<FieldId>> cubes,
                List<List<FieldId>> rollups,
                List<List<Set<FieldId>>> ordinarySets,
                List<Expression> complexExpressions)
        {
            this.cubes = ImmutableList.copyOf(cubes);
            this.rollups = ImmutableList.copyOf(rollups);
            this.ordinarySets = ImmutableList.copyOf(ordinarySets);
            this.complexExpressions = ImmutableList.copyOf(complexExpressions);
        }