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From: Josh Berkus <josh@agliodbs.com>
To: Christoph Haller <ch@rodos.fzk.de>
To: pgsql-sql@postgresql.org
Cc: dsiegal@brave.cs.uml.edu
Subject: Re: Calculating Percentages
Date: Thu, 15 May 2003 08:42:33 -0700
Message-ID: <200305150842.33629.josh@agliodbs.com> (raw)
In-Reply-To: <3EC35832.8BA90263@rodos.fzk.de>
References: <3EC35832.8BA90263@rodos.fzk.de>

Chris, 

> You'll have to GROUP BY nationality, total_members

Oops.  Problem with posting untested SQL ...

> > > would this repeatedly execute the inner query over and over?
> >
> > No, it'd do it just once, because the sub-select has no dependency on
> > the outer select.  (If the sub-select used any variables from the

That's great, Tom.  Yet another place where we've surpassed MS SQL Server in 
query implementation.

-- 
Josh Berkus
Aglio Database Solutions
San Francisco



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