Re: Serious Performance Loss in 7.0.2?? - Mailing list pgsql-hackers

From The Hermit Hacker
Subject Re: Serious Performance Loss in 7.0.2??
Date
Msg-id Pine.BSF.4.21.0007121311020.1325-100000@thelab.hub.org
Whole thread Raw
In response to Re: Serious Performance Loss in 7.0.2??  (Tim Perdue <tperdue@valinux.com>)
List pgsql-hackers
On Wed, 12 Jul 2000, Tim Perdue wrote:

> Andrew McMillan wrote:
> > PostgreSQL seems to not get the index choice right when you have index
> > matches that are like =, =, =, DESC so you actually need to specify the
> > ORDER BY clause in full like:
> >         ORDER BY mail_list DESC, mail_year DESC, mail_month DESC, mail_date
> > DESC
> > and things will hopefully be all OK again.
> 
> Wow - that definitely does *not* work. That took 1:30 to return the
> result for the linux-kernel list.
> 
> My server has a load of 19.25 right now - at 6 AM.

Ouch!  because of that query, or is this standard?  what is the server,
anyway?




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