Re: serial in output

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От Harald Fuchs
Тема Re: serial in output
Дата
Msg-id 87mzkk4iju.fsf@srv.protecting.net
обсуждение исходный текст
Ответ на serial in output  ("alessandra de gregorio" <adegregorio@fgscapital.com>)
Список pgsql-sql
In article <20051028111824.C8C7DDA53F@svr1.postgresql.org>,
"alessandra de gregorio" <adegregorio@fgscapital.com> writes:

> Hi,
> What function should I use to get a serial number, together with my results,
> from a query?

> Ex. Of output I want:

> 1    ooo    pp    ij
> 2    hou    joo    iu    
> 3    bhi    ft    yh

> Basically, I would like to have one column with integers, from 1 onwards, no
> matter how many tables I join in, or the data that I get back.

I'd do it in application code, but if you insist on doing it at the
SQL layer:

CREATE TEMPORARY SEQUENCE tmpseq;
SELECT nextval('tmpseq'), othercols... FROM ...



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