Re: SELECT DISTINCT ... ORDER BY problem

From: Madison Kelly <linux(at)alteeve(dot)com>
To: Grzegorz Jaśkiewicz <gryzman(at)gmail(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: SELECT DISTINCT ... ORDER BY problem
Date: 2008-12-09 21:16:22
Message-ID: 493EE026.5090501@alteeve.com
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Grzegorz Jaśkiewicz wrote:
> On Tue, Dec 9, 2008 at 9:02 AM, Grzegorz Jaśkiewicz <gryzman(at)gmail(dot)com> wrote:
>> or even, when you change bar to proper type - that is, timestamp
>>
>> SELECT distinct foo, min(bar) as minbar, max(bar) as maxbar FROM
>> table WHERE bar < '2008-12-07
>> 16:32:46' AND tbl_id=153 ORDER BY bar LIMIT 1;
>
> but than (after sec of thinking), you could just do
>
> SELECT foo, min(bar) AS minbar, max(bar) AS maxbar FROM table
> WHERE ..blabla.. GROUP BY foo ORDER BY maxbar LIMIT 1;

Woops, didn't see this. This actually solves a second problem I'd not
asked about, too. Thanks!!

Madi

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