Function ExtractField

cpp/src/arrow/json/chunked_builder_test.cc:65–73

}

std::shared_ptr<ChunkedArray> ExtractField(const std::string& name,
                                           const ChunkedArray& columns) {
  auto chunks = columns.chunks();
  for (auto& chunk : chunks) {
    chunk = checked_cast<const StructArray&>(*chunk).GetFieldByName(name);
  }
  const auto& struct_type = checked_cast<const StructType&>(*columns.type());
  return std::make_shared<ChunkedArray>(chunks, struct_type.GetFieldByName(name)->type());
}

void AssertFieldEqual(const std::vector<std::string>& path,
                      const std::shared_ptr<ChunkedArray>& columns,