Re: Negative offsets

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От Bruce Momjian
Тема Re: Negative offsets
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Msg-id 200603030244.k232idf29110@candle.pha.pa.us
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Ответ на Re: Negative offsets  (Bruce Momjian <pgman@candle.pha.pa.us>)
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Bruce Momjian wrote:
> CSN wrote:
> > I was playing around with negative offsets:
> >
> > select * from table1 order by col1 offset -5 limit 25;
> > select * from table1 order by col1 offset -25 limit
> > 25;
> > select * from table1 order by col1 offset -250 limit
> > 25;
> >
> > They all return the same resultset (offset 0). Is
> > there even any point in allowing negative offsets -
> > such as maybe someday they'll offset backwards?
>
> Actually we allow negative offsets and limits.  Seems we should disallow
> them.  Yes, it would be interesting if they did offsets relative to the
> end of the result set.

Seems most people just want to leave our current behavior unchanged.

--
  Bruce Momjian   http://candle.pha.pa.us
  SRA OSS, Inc.   http://www.sraoss.com

  + If your life is a hard drive, Christ can be your backup. +

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