On 2013-10-25 09:26:29 -0400, Robert Haas wrote:
> > In any case, it's very far from obvious to me that CLUSTER ought
> > to throw away information by default, which is what you're proposing.
>
> I find it odd to referring to this as throwing away information. I
> know that you have a general concern about throwing away XIDs that are
> still needed for forensic purposes, but that is clearly the ONLY
> purpose that those XIDs serve, and the I/O advantages of freezing by
> default could be massive for many of our users. What's going to
> happen in practice is that experienced users will simply recommend
> CLUSTER FREEZE rather than plain CLUSTER, and you won't have the
> forensic information *anyway*.
I think we should just apply your "preserve forensic information when
freezing" patch. Then we're good to go without big arguments ;)
Greetings,
Andres Freund
-- Andres Freund http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
Services
