presto-main/src/main/java/io/prestosql/sql/planner/planprinter/PlanPrinter.java/Visitor/visitStatisticsWriterNode
class Visitor:        @Override
        public Void visitStatisticsWriterNode(StatisticsWriterNode node, Void context)
        {
            addNode(node, "StatisticsWriter", format("[%s]", node.getTarget()));
            return processChildren(node, context);
        }