Re: [HACKERS] distinct. Is this the correct behaviour?

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От Vince Vielhaber
Тема Re: [HACKERS] distinct. Is this the correct behaviour?
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Msg-id Pine.BSF.4.05.9910210543140.5578-100000@paprika.michvhf.com
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Ответ на Re: [HACKERS] distinct. Is this the correct behaviour?  (sszabo@bigpanda.com)
Ответы Re: [HACKERS] distinct. Is this the correct behaviour?
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On Wed, 20 Oct 1999 sszabo@bigpanda.com wrote:

> 
> This seems to generally work in postgres for the simple cases I tried:
>  select x from foo group by x order by min(y)
> 
> Now I don't know if there are any hidden gotchas in that (or wierdness
> with the spec), but it also feels better to me than using distinct in this
> case as well, because it seems to explicitly describe how you want y
> ordered.

Hey!  That works!  Thanks!  Just checked sybase and the original query
acts identical to ours.

Vince.
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