I was replying to the context of the post, and specifically spoke to horizontal scalability so I am confused that you felt it appropriate to "correct" that. Ha

I was replying to the context of the post, and specifically spoke to horizontal scalability so I am confused that you felt it appropriate to "correct" that. Having said that, hundreds of millions of records equals a small dataset. I still don't understand when that's held as some sort of edge case when it's easily accommodated on commodity low-end hardware.