Re: Building multiple indexes concurrently

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От Alvaro Herrera
Тема Re: Building multiple indexes concurrently
Дата
Msg-id 20100317202401.GC3902@alvh.no-ip.org
обсуждение исходный текст
Ответ на Re: Building multiple indexes concurrently  (Andres Freund <andres@anarazel.de>)
Ответы Re: Building multiple indexes concurrently  (Greg Smith <greg@2ndquadrant.com>)
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Andres Freund escribió:

> I find it way much easier to believe such issues exist on a tables in
> constrast to indexes. The likelihood to get sequential accesses on an index is
> small enough on a big table to make it unlikely to matter much.

Vacuum walks indexes sequentially, for one.

--
Alvaro Herrera                                http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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