Re: [GSoC2014] Patch ALTER TABLE ... SET LOGGED

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От Alvaro Herrera
Тема Re: [GSoC2014] Patch ALTER TABLE ... SET LOGGED
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Msg-id 20140822202331.GS6343@eldon.alvh.no-ip.org
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Ответ на Re: [GSoC2014] Patch ALTER TABLE ... SET LOGGED  (Fabrízio de Royes Mello <fabriziomello@gmail.com>)
Ответы Re: [GSoC2014] Patch ALTER TABLE ... SET LOGGED  (Fabrízio de Royes Mello <fabriziomello@gmail.com>)
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Fabrízio de Royes Mello wrote:
> On Fri, Aug 22, 2014 at 4:45 PM, Alvaro Herrera <alvherre@2ndquadrant.com>
> wrote:

> > I pointed out, in the email just before pushing the patch, that perhaps
> > we should pass down the new relpersistence flag into finish_heap_swap,
> > and from there we could pass it down to reindex_index() which is where
> > it would be needed.  I'm not sure it's worth the trouble, but I think we
> > can still ask Fabrizio to rework that part.

> I can rework this part if it's a real concern.

I guess we can make a better assessment by seeing what it would take.
I'm afraid it will turn out to be really ugly.

Now, there's some desire to have unlogged indexes on logged tables; I
guess if we have that, then eventually there will also be a desire to
swap individual indexes from logged to unlogged.  Perhaps whatever fix
we come up with here would pave the road for that future feature.

-- 
Álvaro Herrera                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services



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