Examples of AggregationOperatorFactory


Examples of com.facebook.presto.operator.AggregationOperator.AggregationOperatorFactory

    {
        List<Page> input = rowPagesBuilder(VARCHAR, BIGINT, VARCHAR, BIGINT, DOUBLE, VARCHAR)
                .addSequencePage(100, 0, 0, 300, 500, 500, 500)
                .build();

        OperatorFactory operatorFactory = new AggregationOperatorFactory(
                0,
                Step.SINGLE,
                ImmutableList.of(aggregation(COUNT, ImmutableList.of(0), Optional.<Integer>absent(), Optional.<Integer>absent(), 1.0),
                        aggregation(LONG_SUM, ImmutableList.of(1), Optional.<Integer>absent(), Optional.<Integer>absent(), 1.0),
                        aggregation(LONG_AVERAGE, ImmutableList.of(1), Optional.<Integer>absent(), Optional.<Integer>absent(), 1.0),
                        aggregation(VAR_BINARY_MAX, ImmutableList.of(2), Optional.<Integer>absent(), Optional.<Integer>absent(), 1.0),
                        aggregation(COUNT_VARCHAR_COLUMN, ImmutableList.of(0), Optional.<Integer>absent(), Optional.<Integer>absent(), 1.0),
                        aggregation(LONG_SUM, ImmutableList.of(3), Optional.<Integer>absent(), Optional.<Integer>absent(), 1.0),
                        aggregation(DOUBLE_SUM, ImmutableList.of(4), Optional.<Integer>absent(), Optional.<Integer>absent(), 1.0),
                        aggregation(VAR_BINARY_MAX, ImmutableList.of(5), Optional.<Integer>absent(), Optional.<Integer>absent(), 1.0)));
        Operator operator = operatorFactory.createOperator(driverContext);

        MaterializedResult expected = resultBuilder(driverContext.getSession(), BIGINT, BIGINT, DOUBLE, VARCHAR, BIGINT, BIGINT, DOUBLE, VARCHAR)
                .row(100, 4950, 49.5, "399", 100, 54950, 54950.0, "599")
                .build();
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