Re: Is postgres able to share sorts required by common partition window functions?

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От Michael Lewis
Тема Re: Is postgres able to share sorts required by common partition window functions?
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Msg-id CAHOFxGrhiXrATVHiMztJpyMzvsbdPYFMK-JO9O+1WokudiJj=w@mail.gmail.com
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Ответ на Is postgres able to share sorts required by common partition window functions?  (Sebastien Arod <sebastien.arod@gmail.com>)
Ответы Re: Is postgres able to share sorts required by common partition window functions?  (Sebastien Arod <sebastien.arod@gmail.com>)
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Does this give the same result and do the optimization you want?

select
  c1,
  min(c2) AS c2,
  min(c3) AS c3,
  min(c4) AS c4
from  
  t
group by
  c1;

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