Re: 9.1 got really fast ;)

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>
Cc: Thomas Kellerer <spam_eater(at)gmx(dot)net>, pgsql-general(at)postgresql(dot)org
Subject: Re: 9.1 got really fast ;)
Date: 2011-10-16 23:24:50
Message-ID: 19858.1318807490@sss.pgh.pa.us
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Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com> writes:
> On Sat, Oct 15, 2011 at 2:20 PM, Thomas Kellerer <spam_eater(at)gmx(dot)net> wrote:
>> Total runtime: -2.368 ms <<==== this is amazing ;)

> I get something similar when I do select now()-query_start from
> pg_stat_activity on my Ubuntu 10.04 / pg 8.3 servers.

Within a transaction block that's not surprising, because now() is
defined as transaction start time not statement start time.

regards, tom lane

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