On Wed, Nov 22, 2017 at 5:55 AM, Robert Haas <robertmh...@gmail.com> wrote: > I have been of the opinion all along that progress monitoring needs to > report facts, not theories. The number of tuples read thus far is a > fact, and is fine to report for whatever value it may have to someone. > The number of tuples that will be read in the future is a theory, and > as you say, progress monitoring is most likely to be used in cases > where theory and practice ended up being very different.
+1. We should never as well enter in things like trying to estimate the amount of time remaining to finish a task [1]. [1]: https://www.xkcd.com/612/ -- Michael
