Excerpts from Bruce Momjian's message of jue ene 13 00:05:53 -0300 2011:
> Srini Raghavan wrote:
> > Thank you very much for reviewing, appreciate the feedback.? As pointed out by
> > you, it is always best to test it out with the latest version, so, I tested the
> > same approach with postgres 9.0.2 on windows just now, and it works!
> >
> >
> > I forgot to mention earlier that in addition to setting vacuum_freeze_table_age
> > to 0, vacuum_freeze_min_age must also be set to 0 to reset xmin with the
> > FrozenXid.
>
> I wonder if you should be using VACUUM FREEZE instead of having to set
> variables.
The documentation says you shouldn't:
FREEZE
Selects aggressive "freezing" of tuples. Specifying FREEZE is equivalent to
performing VACUUM with the vacuum_freeze_min_age parameter set to zero. The
FREEZE option is deprecated and will be removed in a future release; set the
parameter instead.http://www.postgresql.org/docs/9.0/static/sql-vacuum.html
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