Re: Building multiple indexes concurrently

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: pgsql-performance(at)postgresql(dot)org, Greg Smith <greg(at)2ndquadrant(dot)com>, Rob Wultsch <wultsch(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Subject: Re: Building multiple indexes concurrently
Date: 2010-03-17 20:24:01
Message-ID: 20100317202401.GC3902@alvh.no-ip.org
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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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