Re: iceberg queries

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От
Wei Weng
Тема
Re: iceberg queries
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002101c2cc56$f5112330$2f437242@PASCAL
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Re: iceberg queries Jan Wieck <JanWieck@Yahoo.com>
It is a query that looks like

SELECT target1, target2... targetn, SUN(t.qty)
FROM Table t
GROUP BY target1
HAVING SUM(t.qty)>=10

You can replace SUM(t.qty)>=10 with other aggregate constraints.




----- Original Message ----- 
From: Christoph Haller 
To: pgsql-sql@postgresql.org 
Cc: wweng@kencast.com 
Sent: Tuesday, February 04, 2003 3:39 AM
Subject: Re: [SQL] iceberg queries


>
> Does PostgreSQL optimizer handle iceberg queries well?
>
What do you mean by "iceberg query" ?
I've never heard this term.

Regards, Christoph


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