64 lines
2.3 KiB
C++
64 lines
2.3 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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#pragma once
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#include "vec/data_types/data_type_number.h"
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#include "vec/functions/function.h"
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namespace doris::vectorized {
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class FunctionGroupingBase : public IFunction {
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public:
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size_t get_number_of_arguments() const override { return 1; }
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bool use_default_implementation_for_constants() const override { return false; }
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bool use_default_implementation_for_nulls() const override { return false; }
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DataTypePtr get_return_type_impl(const ColumnsWithTypeAndName& arguments) const override {
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return std::make_shared<DataTypeInt64>();
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}
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Status execute_impl(FunctionContext* context, Block& block, const ColumnNumbers& arguments,
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size_t result, size_t input_rows_count) override {
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const ColumnWithTypeAndName& src_column = block.get_by_position(arguments[0]);
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DCHECK(src_column.column->size() == input_rows_count);
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block.get_by_position(result).column = src_column.column;
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return Status::OK();
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}
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};
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class FunctionGrouping : public FunctionGroupingBase {
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public:
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static constexpr auto name = "grouping";
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static FunctionPtr create() { return std::make_shared<FunctionGrouping>(); }
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String get_name() const override { return name; }
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};
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class FunctionGroupingId : public FunctionGroupingBase {
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public:
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static constexpr auto name = "grouping_id";
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static FunctionPtr create() { return std::make_shared<FunctionGroupingId>(); }
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String get_name() const override { return name; }
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};
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} // namespace doris::vectorized
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