Jeff Davis <pgsql@j-davis.com> writes:
> On Thu, 2009-08-13 at 18:46 -0400, Tom Lane wrote:
>> Everybody *thinks* they don't care about forensic evidence. Until they
>> need it.
> We already allow setting vacuum_freeze_min_age to zero, so I don't see a
> solution here other than documentation.
Yeah, we allow it. I just don't want to encourage it ... and definitely
not make it default.
What are you envisioning exactly? If vacuum finds any reason to dirty
a page (or it's already dirty), then freeze everything on the page that's
got age > some lower threshold?
regards, tom lane