e412dd12e8
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.
43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
// 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 <algorithm>
|
|
#include <memory>
|
|
#include <utility>
|
|
|
|
#include "olap/hll.h"
|
|
#include "vec/columns/column_complex.h"
|
|
#include "vec/data_types/data_type_hll.h"
|
|
#include "vec/functions/function_const.h"
|
|
#include "vec/functions/simple_function_factory.h"
|
|
|
|
namespace doris::vectorized {
|
|
|
|
struct HLLEmptyImpl {
|
|
static constexpr auto name = "hll_empty";
|
|
using ReturnColVec = ColumnHLL;
|
|
static auto get_return_type() { return std::make_shared<DataTypeHLL>(); }
|
|
static HyperLogLog init_value() { return HyperLogLog {}; }
|
|
};
|
|
|
|
using FunctionHLLEmpty = FunctionConst<HLLEmptyImpl, false>;
|
|
|
|
void register_function_hll_empty(SimpleFunctionFactory& factory) {
|
|
factory.register_function<FunctionHLLEmpty>();
|
|
}
|
|
|
|
} // namespace doris::vectorized
|