// Licensed to the Apache Software Foundation (ASF) under one

// or more contributor license agreements.  See the NOTICE file

// distributed with this work for additional information

// regarding copyright ownership.  The ASF licenses this file

// to you under the Apache License, Version 2.0 (the

// "License"); you may not use this file except in compliance

// with the License.  You may obtain a copy of the License at

//

//   http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing,

// software distributed under the License is distributed on an

// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

// KIND, either express or implied.  See the License for the

// specific language governing permissions and limitations

// under the License.

#include "exprs/aggregate/aggregate_function_percentile_reservoir.h"

#include "core/data_type/define_primitive_type.h"

#include "exprs/aggregate/aggregate_function_simple_factory.h"

#include "exprs/aggregate/helpers.h"

namespace doris {

#include "common/compile_check_begin.h"

AggregateFunctionPtr createAggregateFunctionPercentileReservoir(const std::string& name,

                                                                const DataTypes& argument_types,

                                                                const DataTypePtr& result_type,

                                                                const bool result_is_nullable,

                                                                const AggregateFunctionAttr& attr) {

    if (argument_types.empty()) {

        throw doris::Exception(ErrorCode::INTERNAL_ERROR,

                               "Aggregate function {} requires at least one argument", name);

    }

    const DataTypePtr& argument_type = remove_nullable(argument_types[0]);

    if (argument_types[0]->get_primitive_type() == TYPE_DOUBLE) {

        return creator_without_type::create<

                AggregateFunctionPercentileReservoir<QuantileReservoirSampler>>(

                argument_types, result_is_nullable, attr);

    }

    return nullptr;

}

void register_aggregate_function_percentile_reservoir(AggregateFunctionSimpleFactory& factory) {

    factory.register_function_both("percentile_reservoir",

                                   createAggregateFunctionPercentileReservoir);

}

#include "common/compile_check_end.h"

} // namespace doris