text: // 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 "exprs/table_function/table_function.h"
  #include "vec/common/string_ref.h"
  #include "vec/columns/column.h"
  #include "vec/columns/column_array.h"
  #include "vec/columns/column_nullable.h"
  
  namespace doris::vectorized {
  
  class VExplodeTableFunction : public TableFunction {
  public:
      VExplodeTableFunction(bool is_outer);
  
      virtual ~VExplodeTableFunction() = default;
  
      virtual Status process_init(vectorized::Block* block) override;
      virtual Status process_row(size_t row_idx) override;
      virtual Status process_close() override;
      virtual Status reset() override;
      virtual Status get_value(void** output) override;
      virtual Status get_value_length(int64_t* length) override;
  
  private:
      const UInt8* _array_null_map;
      const ColumnArray* _array_column;
      size_t _pos;
  };
  
  } // namespace doris::vectorized
  