On Mon, Feb 21, 2022 at 2:31 AM Andy Fan <zhihui.fan1...@gmail.com> wrote: > +1. Just to be more precise, are you also confused about why this > should not be done at all. IIUC, I get 3 reasons from Tom's reply. > a). Planning cost. b). estimation error. c) extra qual execution is bad.
This topic has been discussed a number of times, and Tom has basically always said that he thinks this would be expensive to plan (which I think is true) and that we wouldn't get much benefit (which I think is false). -- Robert Haas EDB: http://www.enterprisedb.com
