presto-benchmark/src/main/java/io/prestosql/benchmark/HandTpchQuery6.java/HandTpchQuery6/HandTpchQuery6
class HandTpchQuery6:    public HandTpchQuery6(LocalQueryRunner localQueryRunner)
    {
        super(localQueryRunner, "hand_tpch_query_6", 10, 100);

        Metadata metadata = localQueryRunner.getMetadata();
        doubleSum = metadata.getAggregateFunctionImplementation(metadata.resolveFunction(QualifiedName.of("sum"), fromTypes(DOUBLE)));
    }