Method FromStructArray

cpp/src/arrow/record_batch.cc:251–264

}

Result<std::shared_ptr<RecordBatch>> RecordBatch::FromStructArray(
    const std::shared_ptr<Array>& array, MemoryPool* memory_pool) {
  if (array->type_id() != Type::STRUCT) {
    return Status::TypeError("Cannot construct record batch from array of type ",
                             *array->type());
  }
  // Push the struct array's validity map and slicing (if any) into the child arrays
  // by calling Flatten
  const std::shared_ptr<StructArray>& struct_array =
      internal::checked_pointer_cast<StructArray>(array);
  ARROW_ASSIGN_OR_RAISE(std::vector<std::shared_ptr<Array>> fields,
                        struct_array->Flatten(memory_pool));
  return Make(arrow::schema(array->type()->fields()), array->length(), std::move(fields));
}

namespace {