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doris/be/src/vec/aggregate_functions/aggregate_function_histogram.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_histogram.h"
#include <fmt/format.h>
#include <glog/logging.h>
#include <algorithm>
#include "vec/aggregate_functions/helpers.h"
#include "vec/core/types.h"
#include "vec/data_types/data_type.h"
#include "vec/data_types/data_type_nullable.h"
namespace doris::vectorized {
template <typename T>
AggregateFunctionPtr create_agg_function_histogram(const DataTypes& argument_types,
const bool result_is_nullable) {
bool has_input_param = (argument_types.size() == 2);
if (has_input_param) {
return creator_without_type::create<
AggregateFunctionHistogram<AggregateFunctionHistogramData<T>, T, true>>(
argument_types, result_is_nullable);
} else {
return creator_without_type::create<
AggregateFunctionHistogram<AggregateFunctionHistogramData<T>, T, false>>(
argument_types, result_is_nullable);
}
}
AggregateFunctionPtr create_aggregate_function_histogram(const std::string& name,
const DataTypes& argument_types,
const bool result_is_nullable) {
WhichDataType type(remove_nullable(argument_types[0]));
#define DISPATCH(TYPE) \
if (type.idx == TypeIndex::TYPE) \
return create_agg_function_histogram<TYPE>(argument_types, result_is_nullable);
FOR_NUMERIC_TYPES(DISPATCH)
FOR_DECIMAL_TYPES(DISPATCH)
#undef DISPATCH
if (type.idx == TypeIndex::String) {
return create_agg_function_histogram<String>(argument_types, result_is_nullable);
}
if (type.idx == TypeIndex::DateTime || type.idx == TypeIndex::Date) {
return create_agg_function_histogram<Int64>(argument_types, result_is_nullable);
}
if (type.idx == TypeIndex::DateV2) {
return create_agg_function_histogram<UInt32>(argument_types, result_is_nullable);
}
if (type.idx == TypeIndex::DateTimeV2) {
return create_agg_function_histogram<UInt64>(argument_types, result_is_nullable);
}
LOG(WARNING) << fmt::format("unsupported input type {} for aggregate function {}",
argument_types[0]->get_name(), name);
return nullptr;
}
void register_aggregate_function_histogram(AggregateFunctionSimpleFactory& factory) {
factory.register_function_both("histogram", create_aggregate_function_histogram);
factory.register_alias("histogram", "hist");
}
} // namespace doris::vectorized