Re: UNION ALL has higher cost than inheritance

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От David E. Wheeler
Тема Re: UNION ALL has higher cost than inheritance
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Msg-id 0CC179F2-A5BF-433C-9D7E-E8AC032EEACA@kineticode.com
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Ответ на Re: UNION ALL has higher cost than inheritance  (Tom Lane <tgl@sss.pgh.pa.us>)
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On Oct 21, 2010, at 2:17 PM, Tom Lane wrote:

> The oversight here is that we don't use appendrel planning for
> a top-level UNION ALL construct.  That didn't use to matter,
> because you always got the same stupid Append plan either way.
> Now it seems like we ought to have some more intelligence for the
> top-level SetOp case.  I smell some code refactoring coming up.

Does it smell like chicken?

Best,

David



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