On Tue, Nov 9, 2010 at 5:15 PM, Kevin Grittner
<[email protected]> wrote:
> Josh Berkus <[email protected]> wrote:
>
>> 6. This would require us to be more aggressive about VACUUMing
>> old-cold relations/page, e.g. VACUUM FREEZE. This it would make
>> one of our worst issues for data warehousing even worse.
>
> I continue to feel that it is insane that when a table is populated
> within the same database transaction which created it (e.g., a bulk
> load of a table or partition), that we don't write the tuples with
> hint bits set for commit and xmin frozen. By the time any but the
> creating transaction can see the tuples, *if* any other transaction
> is ever able to see the tuples, these will be the correct values;
> we really should be able to deal with it within the creating
> transaction somehow.
I agree.
> If we ever handle that, would #6 be a moot point, or do you think
> it's still a significant issue?
I think it's a moot point anyway, per previous email.
--
Robert Haas
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