Jeff Davis <pgsql@j-davis.com> writes:
> I could imagine some situations that this could be more useful in the
> future. For instance, Hot Standby will increase the consequences of not
> advancing xmin when it's possible to do so.
The question wasn't really about the consequences; it was about whether
there was any hope of this patch being able to advance xmin more than
the code that's there, for common usage patterns.
regards, tom lane