Re: BUG #7521: Cannot disable WAL log while using pg_dump

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От Robert Haas
Тема Re: BUG #7521: Cannot disable WAL log while using pg_dump
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Msg-id CA+TgmoYZK+FXoV7p14=AcdowuFJefB6ZfF3H67NTvvW_ug=QHw@mail.gmail.com
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Ответ на Re: BUG #7521: Cannot disable WAL log while using pg_dump  (Alvaro Herrera <alvherre@2ndquadrant.com>)
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On Thu, Sep 6, 2012 at 5:07 PM, Alvaro Herrera <alvherre@2ndquadrant.com> wrote:
> How about secondary effects -- say pg_dump reads a lot of data into
> buffers that were previously dirty and those get evicted.  Could page
> eviction cause lots of WAL to be emitted?

No.  Simon's proposed checksum patch would have that effect, but currently no.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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