presto-main/src/main/java/io/prestosql/operator/ExplainAnalyzeOperator.java/ExplainAnalyzeOperator/duplicate
class ExplainAnalyzeOperator:        @Override
        public OperatorFactory duplicate()
        {
            return new ExplainAnalyzeOperatorFactory(operatorId, planNodeId, queryPerformanceFetcher, metadata, verbose);
        }