Re: [HACKERS] Re: vacuum timings

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От Dmitry Samersoff
Тема Re: [HACKERS] Re: vacuum timings
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Msg-id 3888B822.28F79A1F@wplus.net
обсуждение исходный текст
Ответ на Re: vacuum timings  (Bruce Momjian <pgman@candle.pha.pa.us>)
Ответы Re: [HACKERS] Re: vacuum timings  (Bruce Momjian <pgman@candle.pha.pa.us>)
Список pgsql-hackers
Tom Lane wrote:
> 
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Conclusions:
> >       o  indexes never get smaller
> 
> Which we knew...
> 
> >       o  drop/recreate index is slower than vacuum of indexes
> 
> Quite a few people have reported finding the opposite in practice.

I'm one of them. On 1,5 GB table with three indices it about twice
slowly.
Probably becouse vacuuming indices brakes system cache policy.
(FreeBSD 3.3)



-- 
Dmitry Samersoff, DM\S
dms@wplus.net http://devnull.wplus.net
* there will come soft rains


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