From: Aaron Bono <postgresql@aranya.com>
To: Klay Martens <kmartens@wol.co.za>
Cc: patrick.jacquot@anpe.fr
Cc: cadiolis@gmail.com
Cc: pgsql-sql@postgresql.org
Subject: Re: Am I crazy or is this SQL not possible
Date: Fri, 2 Jun 2006 10:23:30 -0500
Message-ID: <bf05e51c0606020823n4cf643dakccd752666000a4d6@mail.gmail.com> (raw)
In-Reply-To: <6c800ab64b48492fa88fa92f4fc28625@wol.co.za>
References: <6c800ab64b48492fa88fa92f4fc28625@wol.co.za>
Only if you assume that ordering by unique_id and by date_sent are
equivalent. That may be the case but I personally hate making assumptions
like that. When someone goes into the database and updates records (clean
up bad data, etc.) your perfectly running query can suddenly produce bad
results.
-Aaron
On 6/2/06, Klay Martens <kmartens@wol.co.za> wrote:
>
>
> Sorry to stick my nose in here...
> would not this work better?
>
> SELECT broadcast_id,date_sent,status from broadcast_history where
> unique_id in (
> SELECT max(unique_id) from broadcast_history group by broadcast_id);
>
> Seems like a simpler option.
>
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To: pgsql-sql@postgresql.org
Cc: postgresql@aranya.com, kmartens@wol.co.za, patrick.jacquot@anpe.fr, cadiolis@gmail.com
Subject: Re: Am I crazy or is this SQL not possible
In-Reply-To: <bf05e51c0606020823n4cf643dakccd752666000a4d6@mail.gmail.com>
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