Examples with StatisticalDigestStateSerializer com.facebook.presto.operator.aggregation.state.StatisticalDigestStateSerializer used on opensource projects

Example 1 with StatisticalDigestStateSerializer

use of com.facebook.presto.operator.aggregation.state.StatisticalDigestStateSerializer in project presto by prestodb.

the class StatisticalDigestAggregationFunction method generateAggregation.

private InternalAggregationFunction generateAggregation(String name, Type valueType, Type outputType, int arity) {
    DynamicClassLoader classLoader = new DynamicClassLoader(StatisticalDigestAggregationFunction.class.getClassLoader());
    List<Type> inputTypes = getInputTypes(valueType, arity);
    StatisticalDigestStateSerializer stateSerializer = new StatisticalDigestStateSerializer();
    Type intermediateType = stateSerializer.getSerializedType();
    AggregationMetadata metadata = new AggregationMetadata(generateAggregationName(name, outputType.getTypeSignature(), inputTypes.stream().map(Type::getTypeSignature).collect(toImmutableList())), createInputParameterMetadata(inputTypes), getInputMethodHandle(valueType, arity), COMBINE_FUNCTION, OUTPUT_FUNCTION.bindTo(stateSerializer), ImmutableList.of(new AccumulatorStateDescriptor(StatisticalDigestState.class, stateSerializer, factory)), outputType);
    GenericAccumulatorFactoryBinder factory = AccumulatorCompiler.generateAccumulatorFactoryBinder(metadata, classLoader);
    return new InternalAggregationFunction(name, inputTypes, ImmutableList.of(intermediateType), outputType, true, true, factory);
}

Example 2 with StatisticalDigestStateSerializer

use of com.facebook.presto.operator.aggregation.state.StatisticalDigestStateSerializer in project presto by prestodb.

the class MergeStatisticalDigestFunction method generateAggregation.

private InternalAggregationFunction generateAggregation(Type type) {
    DynamicClassLoader classLoader = new DynamicClassLoader(MapAggregationFunction.class.getClassLoader());
    StatisticalDigestStateSerializer stateSerializer = new StatisticalDigestStateSerializer();
    Type intermediateType = stateSerializer.getSerializedType();
    AggregationMetadata metadata = new AggregationMetadata(generateAggregationName(name, type.getTypeSignature(), ImmutableList.of(type.getTypeSignature())), createInputParameterMetadata(type), getInputFunction().bindTo(type), COMBINE_FUNCTION, OUTPUT_FUNCTION.bindTo(stateSerializer), ImmutableList.of(new AccumulatorStateDescriptor(StatisticalDigestState.class, stateSerializer, factory)), type);
    GenericAccumulatorFactoryBinder factory = AccumulatorCompiler.generateAccumulatorFactoryBinder(metadata, classLoader);
    return new InternalAggregationFunction(name, ImmutableList.of(type), ImmutableList.of(intermediateType), type, true, true, factory);
}