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Re: Matching several rows

From: Vraj Mohan <vrajmohan(at)comcast(dot)net>
To: pgsql-sql(at)postgresql(dot)org
Subject: Re: Matching several rows
Date: 2006-01-18 16:35:39
Message-ID: dqlqos$tj0$1@sea.gmane.org (view raw or flat)
Thread:
Lists: pgsql-sql
It is easier to think of this as SET INTERSECTION which leads to:

SELECT id FROM urights WHERE right = 2
INTERSECT
SELECT id FROM urights WHERE right = 5
INTERSECT
SELECT id FROM urights WHERE right = 10

Ivan Steganov wrote:
> Thank you to everyone for the great help!
> 
> I will evaluate all methods in our query (It is actually well complexer then
> this sample) and choose the best one.
> 
> Is there any "scientific" name to this kind of "several rows match for one
> result" data selection?
> 
> Ivan
> 


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