Bruce Momjian wrote:
> > I wonder if the fact that these people never reported the bug means
> > there were doing something odd with their servers.
> 
> I just updated the C comment about what we are doing:
> 
>      * Using autovacuum=off disables cleanup vacuum and analyze, but
>      * freeze vacuums can still happen, so we set
>      * autovacuum_freeze_max_age very high.  We assume all datfrozenxid and
>      * relfrozen values are less than a gap of 2000000000 from the current
>      * xid counter, so autovacuum will not touch them.

FYI, 2000000000 is the maximum value for autovacuum_freeze_max_age, so a
user can't set it higher.

-- 
  Bruce Momjian  <br...@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +

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