Re: -DCLOBBER_CACHE_ALWAYS shows COPY FREEZE regression problem

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От Simon Riggs
Тема Re: -DCLOBBER_CACHE_ALWAYS shows COPY FREEZE regression problem
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Msg-id CA+U5nMK8_P=0kq=-CURnOhb7Fxq1WxhTYFObNfdQYmnpPsb5rg@mail.gmail.com
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Ответ на Re: -DCLOBBER_CACHE_ALWAYS shows COPY FREEZE regression problem  (Andres Freund <andres@2ndquadrant.com>)
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On 7 December 2012 00:06, Andres Freund <andres@2ndquadrant.com> wrote:

> Apparently the magic to preserve those values across cache resets isn't
> strong enough for this. Seems bad, because that seems to mean a sinval
> overflow leads to this and related optimizations being lost?

Which seems to back up the case for it being a hint, that the system
might not be able to honor.

-- Simon Riggs                   http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services

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