Package com.facebook.presto.operator.TopNOperator

Examples of com.facebook.presto.operator.TopNOperator.TopNOperatorFactory

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                .row(4, 0.41)
                .row(6, 0.6)
                .pageBreak()
                .build();

        TopNOperatorFactory factory = new TopNOperatorFactory(
                0,
                2,
                0,
                ImmutableList.of(singleColumn(FIXED_INT_64, 0, 0), singleColumn(DOUBLE, 1, 0)),
                Ordering.from(new FieldOrderedTupleComparator(ImmutableList.of(0), ImmutableList.of(SortItem.Ordering.DESCENDING))),
                false);

        Operator operator = factory.createOperator(driverContext);

        MaterializedResult expected = resultBuilder(FIXED_INT_64, DOUBLE)
                .row(6, 0.6)
                .row(5, 0.5)
                .build();
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                .row("d", 5)
                .row("d", 7)
                .row("e", 6)
                .build();

        TopNOperatorFactory operatorFactory = new TopNOperatorFactory(
                0,
                3,
                0,
                ImmutableList.of(ProjectionFunctions.concat(singleColumn(VARIABLE_BINARY, 0, 0), singleColumn(FIXED_INT_64, 0, 1))),
                Ordering.from(new FieldOrderedTupleComparator(ImmutableList.of(0, 1), ImmutableList.of(SortItem.Ordering.DESCENDING, SortItem.Ordering.DESCENDING))),
                false);

        Operator operator = operatorFactory.createOperator(driverContext);

        MaterializedResult expected = resultBuilder(tupleInfo)
                .row("f", 3)
                .row("e", 6)
                .row("d", 7)
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                .row(4, 0.41)
                .row(6, 0.6)
                .pageBreak()
                .build();

        TopNOperatorFactory operatorFactory = new TopNOperatorFactory(
                0,
                2,
                0,
                ImmutableList.of(singleColumn(FIXED_INT_64, 0, 0), singleColumn(DOUBLE, 1, 0)),
                Ordering.from(new FieldOrderedTupleComparator(ImmutableList.of(0), ImmutableList.of(SortItem.Ordering.ASCENDING))),
                false);

        Operator operator = operatorFactory.createOperator(driverContext);

        MaterializedResult expected = resultBuilder(FIXED_INT_64, DOUBLE)
                .row(-1, -0.1)
                .row(1, 0.1)
                .build();
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                sortOrders.add(node.getOrderings().get(symbol));
            }

            Optional<Integer> sampleWeightChannel = node.getSampleWeight().transform(source.channelGetter());

            OperatorFactory operator = new TopNOperatorFactory(
                    context.getNextOperatorId(),
                    source.getTypes(),
                    (int) node.getCount(),
                    sortChannels,
                    sortOrders,
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    @Override
    protected List<? extends OperatorFactory> createOperatorFactories()
    {
        BlockIterable blockIterable = getBlockIterable("orders", "totalprice", BlocksFileEncoding.RAW);
        AlignmentOperatorFactory alignmentOperator = new AlignmentOperatorFactory(0, blockIterable);
        TopNOperatorFactory topNOperator = new TopNOperatorFactory(
                1,
                100,
                0,
                ImmutableList.of(singleColumn(Type.DOUBLE, 0, 0)),
                Ordering.from(new FieldOrderedTupleComparator(ImmutableList.of(0), ImmutableList.of(SortItem.Ordering.DESCENDING))),
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            for (Symbol symbol : orderBySymbols) {
                sortChannels.add(source.getLayout().get(symbol));
                sortOrders.add(node.getOrderings().get(symbol));
            }

            OperatorFactory operator = new TopNOperatorFactory(
                    context.getNextOperatorId(),
                    source.getTypes(),
                    (int) node.getCount(),
                    sortChannels,
                    sortOrders,
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            Ordering<TupleReadable> ordering = Ordering.from(new FieldOrderedTupleComparator(sortFields, sortOrders));

            IdentityProjectionInfo mappings = computeIdentityMapping(node.getOutputSymbols(), source.getLayout(), context.getTypes());

            OperatorFactory operator = new TopNOperatorFactory(
                    context.getNextOperatorId(),
                    (int) node.getCount(),
                    orderByChannel,
                    mappings.getProjections(),
                    ordering,
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                .row(4, 0.41)
                .row(6, 0.6)
                .pageBreak()
                .build();

        TopNOperatorFactory factory = new TopNOperatorFactory(
                0,
                ImmutableList.of(BIGINT, DOUBLE),
                2,
                ImmutableList.of(0),
                ImmutableList.of(DESC_NULLS_LAST),
                false);

        Operator operator = factory.createOperator(driverContext);

        MaterializedResult expected = resultBuilder(driverContext.getSession(), BIGINT, DOUBLE)
                .row(6, 0.6)
                .row(5, 0.5)
                .build();
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                .row("d", 5)
                .row("d", 7)
                .row("e", 6)
                .build();

        TopNOperatorFactory operatorFactory = new TopNOperatorFactory(
                0,
                ImmutableList.of(VARCHAR, BIGINT),
                3,
                ImmutableList.of(0, 1),
                ImmutableList.of(DESC_NULLS_LAST, DESC_NULLS_LAST),
                false);

        Operator operator = operatorFactory.createOperator(driverContext);

        MaterializedResult expected = MaterializedResult.resultBuilder(driverContext.getSession(), VARCHAR, BIGINT)
                .row("f", 3)
                .row("e", 6)
                .row("d", 7)
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                .row(4, 0.41)
                .row(6, 0.6)
                .pageBreak()
                .build();

        TopNOperatorFactory operatorFactory = new TopNOperatorFactory(
                0,
                ImmutableList.of(BIGINT, DOUBLE),
                2,
                ImmutableList.of(0),
                ImmutableList.of(ASC_NULLS_LAST),
                false);

        Operator operator = operatorFactory.createOperator(driverContext);

        MaterializedResult expected = resultBuilder(driverContext.getSession(), BIGINT, DOUBLE)
                .row(-1, -0.1)
                .row(1, 0.1)
                .build();
View Full Code Here
TOP

Related Classes of com.facebook.presto.operator.TopNOperator.TopNOperatorFactory

  • com.facebook.presto.benchmark.Top100Benchmark
  • com.facebook.presto.operator.TestTopNOperator
  • com.facebook.presto.sql.planner.LocalExecutionPlanner$Visitor
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