presto-main/src/main/java/io/prestosql/sql/planner/LocalExecutionPlanner.java/LocalExecutionPlanner/PhysicalOperation
class LocalExecutionPlanner:        public PhysicalOperation(OperatorFactory operatorFactory, Map<Symbol, Integer> layout, LocalExecutionPlanContext context, PipelineExecutionStrategy pipelineExecutionStrategy)
        {
            this(operatorFactory, layout, context, Optional.empty(), pipelineExecutionStrategy);
        }