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Copy pathvexplode_bitmap.h
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58 lines (46 loc) · 1.84 KB
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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.
#pragma once
#include <cstddef>
#include <memory>
#include "common/status.h"
#include "core/data_type/data_type.h"
#include "core/value/bitmap_value.h"
#include "exprs/table_function/table_function.h"
namespace doris {
class Block;
class VExplodeBitmapTableFunction final : public TableFunction {
ENABLE_FACTORY_CREATOR(VExplodeBitmapTableFunction);
public:
VExplodeBitmapTableFunction();
~VExplodeBitmapTableFunction() override = default;
void reset() override;
void get_same_many_values(MutableColumnPtr& column, int length) override;
int get_value(MutableColumnPtr& column, int max_step) override;
void forward(int step = 1) override;
Status process_init(Block* block, RuntimeState* state) override;
void process_row(size_t row_idx) override;
void process_close() override;
private:
void _reset_iterator();
// Not own object, just a reference
const BitmapValue* _cur_bitmap = nullptr;
// iterator of _cur_bitmap
std::unique_ptr<BitmapValueIterator> _cur_iter;
ColumnPtr _value_column;
};
} // namespace doris