Re: numbering rows in a view

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От richard terry
Тема Re: numbering rows in a view
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Msg-id 200908302211.25768.rterry@pacific.net.au
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Ответ на Re: numbering rows in a view  (Thomas Kellerer <spam_eater@gmx.net>)
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On Sunday 30 August 2009 21:53:15 Thomas Kellerer wrote:
> richard terry wrote on 30.08.2009 13:26:
> > I need a unique numbering for a view row and I can recall somewhere that
> > postgres was getting a new function which would enable this to happen,
> > I've searched the docs but I mustn't be putting in the right key words,
> > so I wondered if someone could enlighten me.
>
> You are probably looking for row_number() which was introduced in 8.4
>
> http://www.postgresql.org/docs/current/static/functions-window.html
>
> Something like:
>
> SELECT <your_column_list_here>, row_number() over ()
> FROM ...
>
> Thomas
thanks, I'll check it out.

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