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doris/be/src/vec/aggregate_functions/aggregate_function_stddev.cpp
Adonis Ling e412dd12e8 [chore](build) Use include-what-you-use to optimize includes (PART II) (#18761)
Currently, there are some useless includes in the codebase. We can use a tool named include-what-you-use to optimize these includes. By using a strict include-what-you-use policy, we can get lots of benefits from it.
2023-04-19 23:11:48 +08:00

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// 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 "vec/aggregate_functions/aggregate_function_stddev.h"
#include <fmt/format.h>
#include <string>
#include "common/logging.h"
#include "vec/aggregate_functions/aggregate_function_simple_factory.h"
#include "vec/aggregate_functions/helpers.h"
#include "vec/data_types/data_type.h"
#include "vec/data_types/data_type_nullable.h"
namespace doris::vectorized {
template <template <typename, bool> class AggregateFunctionTemplate,
template <typename> class NameData, template <typename, typename> class Data,
bool is_stddev, bool is_nullable = false>
AggregateFunctionPtr create_function_single_value(const String& name,
const DataTypes& argument_types,
const bool result_is_nullable,
bool custom_nullable) {
WhichDataType which(remove_nullable(argument_types[0]));
#define DISPATCH(TYPE) \
if (which.idx == TypeIndex::TYPE) \
return creator_without_type::create<AggregateFunctionTemplate< \
NameData<Data<TYPE, BaseData<TYPE, is_stddev>>>, is_nullable>>( \
custom_nullable ? remove_nullable(argument_types) : argument_types, \
result_is_nullable);
FOR_NUMERIC_TYPES(DISPATCH)
#undef DISPATCH
#define DISPATCH(TYPE) \
if (which.idx == TypeIndex::TYPE) \
return creator_without_type::create<AggregateFunctionTemplate< \
NameData<Data<TYPE, BaseDatadecimal<TYPE, is_stddev>>>, is_nullable>>( \
custom_nullable ? remove_nullable(argument_types) : argument_types, \
result_is_nullable);
FOR_DECIMAL_TYPES(DISPATCH)
#undef DISPATCH
LOG(WARNING) << fmt::format("create_function_single_value with unknowed type {}",
argument_types[0]->get_name());
return nullptr;
}
template <bool is_stddev, bool is_nullable>
AggregateFunctionPtr create_aggregate_function_variance_samp(const std::string& name,
const DataTypes& argument_types,
const bool result_is_nullable) {
return create_function_single_value<AggregateFunctionSamp, VarianceSampName, SampData,
is_stddev, is_nullable>(name, argument_types,
result_is_nullable, true);
}
template <bool is_stddev, bool is_nullable>
AggregateFunctionPtr create_aggregate_function_stddev_samp(const std::string& name,
const DataTypes& argument_types,
const bool result_is_nullable) {
return create_function_single_value<AggregateFunctionSamp, StddevSampName, SampData, is_stddev,
is_nullable>(name, argument_types, result_is_nullable,
true);
}
template <bool is_stddev>
AggregateFunctionPtr create_aggregate_function_variance_pop(const std::string& name,
const DataTypes& argument_types,
const bool result_is_nullable) {
return create_function_single_value<AggregateFunctionPop, VarianceName, PopData, is_stddev>(
name, argument_types, result_is_nullable, false);
}
template <bool is_stddev>
AggregateFunctionPtr create_aggregate_function_stddev_pop(const std::string& name,
const DataTypes& argument_types,
const bool result_is_nullable) {
return create_function_single_value<AggregateFunctionPop, StddevName, PopData, is_stddev>(
name, argument_types, result_is_nullable, false);
}
void register_aggregate_function_stddev_variance_pop(AggregateFunctionSimpleFactory& factory) {
factory.register_function_both("variance", create_aggregate_function_variance_pop<false>);
factory.register_alias("variance", "var_pop");
factory.register_alias("variance", "variance_pop");
factory.register_function_both("stddev", create_aggregate_function_stddev_pop<true>);
factory.register_alias("stddev", "stddev_pop");
}
void register_aggregate_function_stddev_variance_samp(AggregateFunctionSimpleFactory& factory) {
factory.register_function("variance_samp",
create_aggregate_function_variance_samp<false, false>);
factory.register_function("variance_samp", create_aggregate_function_variance_samp<false, true>,
true);
factory.register_alias("variance_samp", "var_samp");
factory.register_function("stddev_samp", create_aggregate_function_stddev_samp<true, false>);
factory.register_function("stddev_samp", create_aggregate_function_stddev_samp<true, true>,
true);
}
} // namespace doris::vectorized