| From: | hubert depesz lubaczewski <depesz(at)depesz(dot)com> |
|---|---|
| To: | raghu ram <raghuchennuru(at)gmail(dot)com> |
| Cc: | emilu(at)encs(dot)concordia(dot)ca, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: How to realize ROW_NUMBER() in 8.3? |
| Date: | 2011-04-21 17:58:54 |
| Message-ID: | 20110421175853.GA9061@depesz.com |
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| Thread: | |
| Lists: | pgsql-general |
On Wed, Apr 20, 2011 at 09:27:18PM +0530, raghu ram wrote:
> On Wed, Apr 20, 2011 at 9:21 PM, Emi Lu <emilu(at)encs(dot)concordia(dot)ca> wrote:
>
> > Hello,
> >
> > ROW_NUMBER() is only ready in 8.4. For 8.3, is there a simple way to get
> > row_number
> >
> > select row_number(), col1, col2...
> > FROM tableName
> >
> >
>
> Below link will demonstrates ROW_NUMBER features in pre Postgresql-8.4::
>
> http://www.postgresonline.com/journal/archives/79-Simulating-Row-Number-in-PostgreSQL-Pre-8.4.html
another approach:
http://www.depesz.com/index.php/2007/08/17/rownum-anyone-cumulative-sum-in-one-query/
Best regards,
depesz
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