shahidki31 removed a comment on pull request #32734:
URL: https://github.com/apache/spark/pull/32734#issuecomment-853975061


   Hi @zhengruifeng @srowen  , I have updated following
   1. Since Summary metrics already have nnz metrics, we can leverage that to 
find sparsity. Already the method is computing summary for columns.
   2. Updated the UTs
   
   Please review.


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