Re: pg_upgrade and statistics

Peter Eisentraut <peter_e@gmx.net> writes:
> On tor, 2012-03-15 at 11:15 -0400, Andrew Dunstan wrote:
>> I haven't looked at it, but I'm wondering how hard it is going to be
>> in practice?

> Take a look at the commit log of pg_statistic.h; it's not a lot.

That says nothing as all about the cost of dealing with a change.
And as Greg pointed out, there might be a lot more churn in the future
than there has been in the past.  We're getting to the point where stats
are a primary limitation on what we can do, so I wouldn't be surprised
if he's right and there's more activity in this area soon.
        regards, tom lane