From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
---|---|
To: | Thomas Kellerer <spam_eater(at)gmx(dot)net> |
Cc: | pgsql-novice(at)postgresql(dot)org |
Subject: | Re: count() in 9.2 |
Date: | 2012-10-17 18:38:04 |
Message-ID: | CA+U5nM+2WDiqmGBdbSnPoyt+OBUOYAFAyaB8=-BtV4Si7rijmA@mail.gmail.com |
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Lists: | pgsql-novice |
On 17 October 2012 18:48, Thomas Kellerer <spam_eater(at)gmx(dot)net> wrote:
> Steve Horn wrote on 17.10.2012 17:00:
>
>> One of the reasons that my team could not take advantage of
>> PostgreSQL was due to the poor performance of count(*) aggregate
>> function.
>
> I wonder what kind of application makes a slow count(*) on a table a show
> stopper.
That's a much better answer than my original reply.
There is only one answer, in any DBMS: Prepare special datastructures
that allow you to do that quickly, which is also an option in
Postgres.
--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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