Re: Incorrect behavior with CE and ORDER BY

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От Joshua D. Drake
Тема Re: Incorrect behavior with CE and ORDER BY
Дата
Msg-id 453E5660.20608@commandprompt.com
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Ответ на Re: Incorrect behavior with CE and ORDER BY  (Alvaro Herrera <alvherre@commandprompt.com>)
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Alvaro Herrera wrote:
> Joshua D. Drake wrote:
>> Tom Lane wrote:
>>> "Joshua D. Drake" <jd@commandprompt.com> writes:
>>>> We have a problem with CE that I want to verify is either expected
>>>> behavior, a bug or something else :).
>>> Uh, what's your problem exactly?  The example only seems to demonstrate
>>> that if you don't ask for a sort, you don't get one.
>> Sorry. The problem is, if I ask for an ORDER BY it scans all partitions
>> versus only scanning the partition that has the data in it.
> 
> Huh, but that's not what the EXPLAIN ANALYZE you posted says ...
> 

Sorry I realize the error of my ways. It isn't that it is scanning all
partitions, it is that it is scanning all of a single partition (subject
to the WHERE clause). That is correct behavior.

Sincerely,

Joshua D. Drake

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