Hi, Now I’m working on fixing the last concerns on my ORC writer https://github.com/apache/arrow/pull/8648 <https://github.com/apache/arrow/pull/8648> and have two questions.
I have a need to standardize an Arrow Array so that it is fit for cheaper conversion into ORC by making sure that all the children (and grandchildren etc) of null struct entries are null. Is there an established method to achieve that? It will also be very helpful if there Is some fast and canonical method to standardize an Array and ensure that null List/LargeList/FixedSizeList/Map entries have zero lengths in their value/key/item arrays. I’m about to switch all my Write*Batch to use ArrayDataInlineVisitor (or maybe ArrayDataVisitor since it is used more often?) I have a concern on feasibility of using visitors for nested types. It doesn’t seem like ArrayDataVisitor supports these types. Is that true? If so, shall I use visitors for non-nested types while using for loops for nested ones? Thanks, Ying
