Re: Multicolumn indexes and ORDER BY

Поиск
Список
Период
Сортировка
Искать
От
Jernej Kos
Тема
Re: Multicolumn indexes and ORDER BY
Дата
Msg-id
200406161539.35947.kostko@jweb-network.net
Ответ на
Re: Multicolumn indexes and ORDER BY (Martijn van Oosterhout)
Список
Дерево обсуждения
Multicolumn indexes and ORDER BY Jernej Kos <kostko@jweb-network.net>
Re: Multicolumn indexes and ORDER BY Martijn van Oosterhout <kleptog@svana.org>
Re: Multicolumn indexes and ORDER BY Jernej Kos <kostko@jweb-network.net>
Re: Multicolumn indexes and ORDER BY Tom Lane <tgl@sss.pgh.pa.us>
Yes i tried that already - and as you said, it works. But i need to have one 
column sorted DESC and one ASC. Is there any way this could be done ?

Regards,
Jernej Kos.

On Wednesday 16 of June 2004 08:12, Martijn van Oosterhout wrote:
> On Wed, Jun 16, 2004 at 07:12:26AM +0200, Jernej Kos wrote:
> > I have a multicolumn index on two columns. If i use the columns in ORDER
> > BY like this:
> >   ORDER BY col1, col2;
> >
> > The index is used. But, if one column is sorted DESC it is not used:
> >   ORDER BY col1 DESC, col2;
> >
> > How can i make this work ?
>
> Try:
>
> ORDER BY col1 DESC, col2 desc;
>
> Hope this helps,

-- 
Jernej Kos 
JWeb-Network
В списке pgsql-general по дате отправления
От: Bill Moran
Дата:
Сообщение: Re: 7.4 performance issue
От: David Parker
Дата:
FAQ