From: Vraj Mohan <vrajmohan@comcast.net>
To: pgsql-sql@postgresql.org
Subject: Re: Matching several rows
Date: Wed, 18 Jan 2006 11:35:39 -0500
Message-ID: <dqlqos$tj0$1@sea.gmane.org> (raw)
In-Reply-To: <3578f52e0601180622h5035935ch5e64c018fde16f91@mail.gmail.com>
References: <3578f52e0601172043s64561353i689350a1c5d4debb@mail.gmail.com>
<3578f52e0601180622h5035935ch5e64c018fde16f91@mail.gmail.com>
It is easier to think of this as SET INTERSECTION which leads to:
SELECT id FROM urights WHERE right = 2
INTERSECT
SELECT id FROM urights WHERE right = 5
INTERSECT
SELECT id FROM urights WHERE right = 10
Ivan Steganov wrote:
> Thank you to everyone for the great help!
>
> I will evaluate all methods in our query (It is actually well complexer then
> this sample) and choose the best one.
>
> Is there any "scientific" name to this kind of "several rows match for one
> result" data selection?
>
> Ivan
>
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To: pgsql-sql@postgresql.org
Cc: vrajmohan@comcast.net
Subject: Re: Matching several rows
In-Reply-To: <dqlqos$tj0$1@sea.gmane.org>
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