jorisvandenbossche commented on a change in pull request #10199:
URL: https://github.com/apache/arrow/pull/10199#discussion_r625650105
##########
File path: cpp/src/arrow/python/numpy_to_arrow.cc
##########
@@ -594,7 +594,13 @@ Status NumPyConverter::Visit(const FixedSizeBinaryType&
type) {
if (mask_ != nullptr) {
Ndarray1DIndexer<uint8_t> mask_values(mask_);
- RETURN_NOT_OK(builder.AppendValues(data, length_, mask_values.data()));
+ std::unique_ptr<uint8_t[]> inverted_mask(new uint8_t[length_]);
+ for (int64_t i = 0; i < length_; ++i) {
+ inverted_mask[i] = !mask_values[i];
+ }
Review comment:
The `mask` keyword is useful if you have numpy-style masked arrays
(having a boolean numpy array as the mask). We use this keyword in pandas.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
