From: Tom Lane <tgl@sss.pgh.pa.us>
To: dan@langille.org
Cc: pgsql-sql@postgresql.org
Subject: Re: using LIMIT only on primary table
Date: Sat, 02 Mar 2002 18:22:35 -0500
Message-ID: <17340.1015111355@sss.pgh.pa.us> (raw)
In-Reply-To: <200203022235.g22MZYk55756@lists.unixathome.org>
References: <200203022235.g22MZYk55756@lists.unixathome.org>
"Dan Langille" <dan@langille.org> writes:
> If I want all the items on the last 100 orders, I'd start like this:
> SELECT *
> from orders, order_items
> where order_items.order_id = orders.id
> LIMIT 100
I think you want
SELECT *
from
(SELECT * from orders order by ID DESC limit 100) as recent_orders,
order_items
where order_items.order_id = recent_orders.id
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, dan@langille.org
Subject: Re: using LIMIT only on primary table
In-Reply-To: <17340.1015111355@sss.pgh.pa.us>
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