Re: (PATCH) Adding CORRESPONDING to Set Operations

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От Tom Lane
Тема Re: (PATCH) Adding CORRESPONDING to Set Operations
Дата
Msg-id 24578.1321277567@sss.pgh.pa.us
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Ответ на Re: (PATCH) Adding CORRESPONDING to Set Operations  (Kerem Kat <keremkat@gmail.com>)
Ответы Re: (PATCH) Adding CORRESPONDING to Set Operations  (Kerem Kat <keremkat@gmail.com>)
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Kerem Kat <keremkat@gmail.com> writes:
> Corresponding is currently implemented in the parse/analyze phase. If
> it were to be implemented in the planning phase, explain output would
> likely be as you expect it to be.

It's already been pointed out to you that doing this at parse time is
unacceptable, because of the implications for reverse-listing of rules
(views).
        regards, tom lane


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