metadata_column_util_internal.h

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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 <cstdint>
#include <memory>
#include <string>
 
#include <arrow/type_fwd.h>
 
#include "iceberg/result.h"
 
namespace iceberg::arrow {
 
struct MetadataColumnContext {
  std::string file_path;      // The file path to populate _file column.
  int64_t next_file_pos = 0;  // The next row position for populating _pos column.
};
 
Result<std::shared_ptr<::arrow::Array>> MakeFilePathArray(const std::string& file_path,
                                                          int64_t num_rows,
                                                          ::arrow::MemoryPool* pool);
 
Result<std::shared_ptr<::arrow::Array>> MakeRowPositionArray(int64_t start_position,
                                                             int64_t num_rows,
                                                             ::arrow::MemoryPool* pool);
 
}  // namespace iceberg::arrow