a525d5c5a3
change type name Decimal128 to Decimal128V2, Decimal128I to Decimal128V3 to avoid confusion
73 lines
3.3 KiB
C++
73 lines
3.3 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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// This file is copied from
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// https://github.com/ClickHouse/ClickHouse/blob/master/src/AggregateFunctions/AggregateFunctionUniq.cpp
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// and modified by Doris
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#include "vec/aggregate_functions/aggregate_function_uniq.h"
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#include <string>
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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/common/hash_table/hash.h" // IWYU pragma: keep
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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> class Data>
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AggregateFunctionPtr create_aggregate_function_uniq(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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if (argument_types.size() == 1) {
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const IDataType& argument_type = *remove_nullable(argument_types[0]);
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WhichDataType which(argument_type);
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AggregateFunctionPtr res(creator_with_numeric_type::create<AggregateFunctionUniq, Data>(
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argument_types, result_is_nullable));
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if (res) {
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return res;
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} else if (which.is_decimal32()) {
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return creator_without_type::create<AggregateFunctionUniq<Decimal32, Data<Int32>>>(
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argument_types, result_is_nullable);
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} else if (which.is_decimal64()) {
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return creator_without_type::create<AggregateFunctionUniq<Decimal64, Data<Int64>>>(
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argument_types, result_is_nullable);
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} else if (which.is_decimal128v3()) {
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return creator_without_type::create<AggregateFunctionUniq<Decimal128V3, Data<Int128>>>(
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argument_types, result_is_nullable);
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} else if (which.is_decimal128v2() || which.is_decimal128v3()) {
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return creator_without_type::create<AggregateFunctionUniq<Decimal128V2, Data<Int128>>>(
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argument_types, result_is_nullable);
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} else if (which.is_string_or_fixed_string()) {
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return creator_without_type::create<AggregateFunctionUniq<String, Data<String>>>(
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argument_types, result_is_nullable);
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}
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}
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return nullptr;
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}
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void register_aggregate_function_uniq(AggregateFunctionSimpleFactory& factory) {
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AggregateFunctionCreator creator =
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create_aggregate_function_uniq<AggregateFunctionUniqExactData>;
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factory.register_function_both("multi_distinct_count", creator);
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}
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} // namespace doris::vectorized
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