On Tue, Apr 27, 2021 at 09:59:18AM +0900, Michael Paquier wrote: > > I am wondering if we should take this as an occasion to move some data > out of pg_stat_activity into a separate biew, dedicated to the data > related to the connection that remains set to the same value for the > duration of a backend's life, as of the following set: > - the backend PID
-1. It's already annoying enough to have to type "WHERE pid != pg_backend_pid()" to exclude my own backend, and I usually need it quite often. Unless we add some new view which integrate that, something like pg_stat_activity_except_me with a better name. I also don't see how we could join a new dedicated view with the old one without that information. > - application_name? (well, this one could change on reload, so I am > lying). No, it can change at any time. And the fact that it's not transactional makes it quite convenient for poor man progress reporting. For instance in powa I use that to report what the bgworker is currently working on, and this has already proven to be useful.
