Re: [PERFORM] encouraging index-only scans

From: Dimitri Fontaine <dimitri(at)2ndQuadrant(dot)fr>
To: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
Cc: Bruce Momjian <bruce(at)momjian(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, Peter Geoghegan <peter(at)2ndquadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andrew Dunstan <andrew(at)dunslane(dot)net>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [PERFORM] encouraging index-only scans
Date: 2013-09-06 07:23:15
Message-ID: m28uza5s7w.fsf@2ndQuadrant.fr
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Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> writes:
> I'm not sure if we need to expose all these new maintenance actions as
> SQL commands.

I strongly think we should, if only for diagnostic purposes. Also to
adapt to some well defined workloads that the automatic system is not
designed to handle.

Regards,
--
Dimitri Fontaine
http://2ndQuadrant.fr PostgreSQL : Expertise, Formation et Support

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