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From: Csaba Nagy <nagy@ecircle-ag.com>
To: Trevor Talbot <quension@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: TB-sized databases
Date: Fri, 30 Nov 2007 11:29:43 +0100
Message-ID: <1196418583.31315.47.camel@PCD12478> (raw)
In-Reply-To: <90bce5730711300215x3ff6c68ekf1c55ce799e48578@mail.gmail.com>
References: <4544e0330711260904g45d893a8ub1731e245aa8fc84@mail.gmail.com>
	<474B1B8C.1030505@gmail.com>
	<4544e0330711271218h56ce4cc3p280a9fefff24583d@mail.gmail.com>
	<1196197045.4246.1154.camel@ebony.site>
	<474CA2FA.2020201@laotraesquina.com.ar>
	<Pine.LNX.4.58.0711281248290.3731@aragorn.flymine.org>
	<20071128082716.91bbad9c.wmoran@collaborativefusion.com>
	<1196257702.31315.6.camel@PCD12478>
	<1196270576.4246.1246.camel@ebony.site>
	<878x4hmfd4.fsf@oxford.xeocode.com>
	<90bce5730711300215x3ff6c68ekf1c55ce799e48578@mail.gmail.com>

> Isn't that what statement_timeout is for? Since this is entirely based
> on estimates, using arbitrary fuzzy numbers for this seems fine to me;
> precision isn't really the goal.

There's an important difference to statement_timeout: this proposal
would avoid completely taking any resources if it estimates it can't be
executed in proper time, but statement_timeout will allow a bad query to
run at least statement_timeout long...

Cheers,
Csaba.

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