Hi, 

I was wondering how we could use arrow arrays for sparse matrix data representation? I felt like the arrow structure suits well for CSC (compressed sparse column) format which is used heavily in sparse matrix operations. 

I saw that there was a 'sparse tensor' on the arrow website. https://arrow.apache.org/docs/cpp/api/tensor.html
Are there any examples of the usage of these?

Best 
--
Niranda Perera
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