presto-benchmark/src/main/java/io/prestosql/benchmark/RawStreamingBenchmark.java/RawStreamingBenchmark/createOperatorFactories
class RawStreamingBenchmark:    @Override
    protected List<? extends OperatorFactory> createOperatorFactories()
    {
        OperatorFactory tableScanOperator = createTableScanOperator(0, new PlanNodeId("test"), "orders", "totalprice");

        return ImmutableList.of(tableScanOperator);
    }