Re: [SQL] trivial problem - Mailing list pgsql-sql

From tjk@tksoft.com
Subject Re: [SQL] trivial problem
Date
Msg-id 199910291812.LAA24162@uno.tksoft.com
Whole thread Raw
In response to Re: [SQL] trivial problem  ("Roderick A. Anderson" <raanders@altoplanos.net>)
List pgsql-sql
If limit didn't mean "get first 50," there would be no time/effort
saved by specifying a limit.

I.e. when a limit is specified, the backend looks for matches until it
finds 50 records, and then stops.


Troy


>
> On Fri, 29 Oct 1999, Oleg Bartunov wrote:
>
> > select * from table order by column limit 50
> >
>
> It used to be and could still be in Oracle (sorry to pull them into this)
> that limit applied to the selection clause so the first 'n' tulples
> selected,not the top/bottom 'n', would be reported.
>    Would this be a feature of the SQL standard or of Oracles
> implementation?  And how does PostgreSQL handle limits?
>
> Rod
> --
> Roderick A. Anderson
> raanders@altoplanos.net               Altoplanos Information Systems, Inc.
> Voice: 208.765.6149                            212 S. 11th Street, Suite 5
> FAX: 208.664.5299                                  Coeur d'Alene, ID 83814
>
>
> ************
>
>

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