Method flattenVector

bolt/vector/BaseVector.cpp:855–890

static

      encoding == VectorEncoding::Simple::ROW;
}
} // namespace

// static
void BaseVector::flattenVector(VectorPtr& vector) {
  if (!vector) {
    return;
  }
  switch (vector->encoding()) {
    case VectorEncoding::Simple::FLAT:
      return;
    case VectorEncoding::Simple::ROW: {
      auto* rowVector = vector->asUnchecked<RowVector>();
      for (auto& child : rowVector->children()) {
        BaseVector::flattenVector(child);
      }
      return;
    }
    case VectorEncoding::Simple::ARRAY: {
      auto* arrayVector = vector->asUnchecked<ArrayVector>();
      BaseVector::flattenVector(arrayVector->elements());
      return;
    }
    case VectorEncoding::Simple::MAP: {
      auto* mapVector = vector->asUnchecked<MapVector>();
      BaseVector::flattenVector(mapVector->mapKeys());
      BaseVector::flattenVector(mapVector->mapValues());
      return;
    }
    case VectorEncoding::Simple::LAZY: {
      vector = vector->asUnchecked<LazyVector>()->loadedVectorShared();
      BaseVector::flattenVector(vector);
      return;
    }
    default:
      BaseVector::ensureWritable(
          SelectivityVector::empty(), vector->type(), vector->pool(), vector);
  }
}