90 lines
4.5 KiB
C++
90 lines
4.5 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#include "vec/aggregate_functions/aggregate_function_covar.h"
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#include <fmt/format.h>
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#include <string>
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#include "common/logging.h"
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#include "vec/aggregate_functions/aggregate_function_simple_factory.h"
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#include "vec/aggregate_functions/helpers.h"
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#include "vec/data_types/data_type.h"
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#include "vec/data_types/data_type_nullable.h"
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namespace doris::vectorized {
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template <template <typename, bool> class AggregateFunctionTemplate,
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template <typename> class NameData, template <typename, typename> class Data,
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bool is_nullable = false>
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AggregateFunctionPtr create_function_single_value(const String& name,
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const DataTypes& argument_types,
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const bool result_is_nullable,
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bool custom_nullable) {
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WhichDataType which(remove_nullable(argument_types[0]));
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#define DISPATCH(TYPE) \
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if (which.idx == TypeIndex::TYPE) \
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return creator_without_type::create< \
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AggregateFunctionTemplate<NameData<Data<TYPE, BaseData<TYPE>>>, is_nullable>>( \
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custom_nullable ? remove_nullable(argument_types) : argument_types, \
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result_is_nullable);
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FOR_NUMERIC_TYPES(DISPATCH)
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#undef DISPATCH
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#define DISPATCH(TYPE) \
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if (which.idx == TypeIndex::TYPE) \
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return creator_without_type::create<AggregateFunctionTemplate< \
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NameData<Data<TYPE, BaseDatadecimal<TYPE>>>, is_nullable>>( \
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custom_nullable ? remove_nullable(argument_types) : argument_types, \
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result_is_nullable);
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FOR_DECIMAL_TYPES(DISPATCH)
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#undef DISPATCH
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LOG(WARNING) << fmt::format("create_function_single_value with unknowed type {}",
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argument_types[0]->get_name());
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return nullptr;
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}
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template <bool is_nullable>
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AggregateFunctionPtr create_aggregate_function_covariance_samp(const std::string& name,
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const DataTypes& argument_types,
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const bool result_is_nullable) {
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return create_function_single_value<AggregateFunctionSamp, CovarSampName, SampData,
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is_nullable>(name, argument_types, result_is_nullable,
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NULLABLE);
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}
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AggregateFunctionPtr create_aggregate_function_covariance_pop(const std::string& name,
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const DataTypes& argument_types,
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const bool result_is_nullable) {
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return create_function_single_value<AggregateFunctionPop, CovarName, PopData>(
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name, argument_types, result_is_nullable, NOTNULLABLE);
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}
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void register_aggregate_function_covar_pop(AggregateFunctionSimpleFactory& factory) {
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factory.register_function_both("covar", create_aggregate_function_covariance_pop);
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factory.register_alias("covar", "covar_pop");
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}
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void register_aggregate_function_covar_samp(AggregateFunctionSimpleFactory& factory) {
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factory.register_function("covar_samp", create_aggregate_function_covariance_samp<NOTNULLABLE>);
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factory.register_function("covar_samp", create_aggregate_function_covariance_samp<NULLABLE>,
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NULLABLE);
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}
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} // namespace doris::vectorized
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