On Thu, Apr 9, 2020 at 6:47 PM James Coleman <jtc...@gmail.com> wrote: > I believe the write pattern to this table likely looks like: > - INSERT > - UPDATE > - DELETE > for every row. But tomorrow I can do some more digging if needed.
The pg_stats.null_frac for the column/index might be interesting here. I believe that Active Record will sometimes generate created_at columns that sometimes end up containing NULL values. Not sure why. -- Peter Geoghegan
