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Re: [HACKERS] DISTINCT and ORDER BY bug? - Mailing list pgsql-hackers

From Chris
Subject Re: [HACKERS] DISTINCT and ORDER BY bug?
Date
Msg-id 389E82D2.65784CF@bitmead.com
Whole thread Raw
In response to DISTINCT and ORDER BY bug?  (Don Baccus <dhogaza@pacifier.com>)
Responses Re: [HACKERS] DISTINCT and ORDER BY bug?
List pgsql-hackers
Tree view 
>         select distinct x from foo order by y;
> 
> which produces ill-defined results.

Why is this ill-defined? If y is in x then it is also distinct and
there's no logic problem sorting on it.

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