"David Esposito" <pgsql-general@esposito.newnetco.com> writes:
> Hmm, how are you getting 1/6? The ballpark seems to be about 50% or more for
> those first 4 ...
Ooops, I got confused about which column was which.
Could we see the results of "vacuum verbose" on this table? Even
better, verbose output from two successive nightly runs?
regards, tom lane