Function isLazyNotLoaded

bolt/vector/BaseVector.cpp:799–820

  vector_size_t size = indices->size() / sizeof(vector_size_t);
  return wrapInDictionary(
      BufferPtr(nullptr), std::move(indices), size, std::move(source));
}

bool isLazyNotLoaded(const BaseVector& vector) {
  switch (vector.encoding()) {
    case VectorEncoding::Simple::LAZY:
      if (!vector.asUnchecked<LazyVector>()->isLoaded()) {
        return true;
      }

      // Lazy Vectors may wrap lazy vectors (e.g. nested Rows) so we need to go
      // deeper.
      return isLazyNotLoaded(*vector.asUnchecked<LazyVector>()->loadedVector());
    case VectorEncoding::Simple::DICTIONARY:
    case VectorEncoding::Simple::SEQUENCE:
      return isLazyNotLoaded(*vector.valueVector());
    case VectorEncoding::Simple::CONSTANT:
      return vector.valueVector() ? isLazyNotLoaded(*vector.valueVector())
                                  : false;
    case VectorEncoding::Simple::ROW:
      return vector.asUnchecked<RowVector>()->containsLazyNotLoaded();
    default:
      return false;
  }
}