I have rows with around 2K-50K columns but when I do a query I only need to fetch few columns between start and end columns. I was wondering what performance overhead does it cause by using slice query with start and end columns?
Looking at the code it looks like when you give start and end column it goes in IndexSliceReader logic, but it's hard to tell how much overhead on an average one would see? Or is it even worth worrying about?