Agreed. Devs usually do a double take when I tell them that their table with 100K rows is not in fact big, or even medium. Everyone’s experiences are different, of course, but to me, big is somewhere in the high hundreds of millions range. After a billion it doesn’t really matter; the difference between 5 billion and 1 billion isn’t important, because it’s exceedingly unlikely that a. Your working set is that large b. That your server could possibly cope with all of it at once. I hope you have partitions.