Re: BUG #7521: Cannot disable WAL log while using pg_dump - Mailing list pgsql-bugs

From Robert Haas
Subject Re: BUG #7521: Cannot disable WAL log while using pg_dump
Date
Msg-id CA+Tgmobjs7FOJ11fB2JRtRs+M+OF3thwAiyjcK=rmE4xcjz+dw@mail.gmail.com
Whole thread Raw
In response to Re: BUG #7521: Cannot disable WAL log while using pg_dump  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-bugs
On Thu, Sep 6, 2012 at 4:23 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Heikki Linnakangas <hlinnaka@iki.fi> writes:
>> On 06.09.2012 13:07, Robert Haas wrote:
>>> On Thu, Sep 6, 2012 at 3:55 PM, Tom Lane<tgl@sss.pgh.pa.us>  wrote:
>>>> Doesn't hint-bit setting cause WAL traffic these days?
>
>>> I sure as heck don't think so.
>
>> It does not. HOT page pruning does, however. It could be that..
>
> Sorry, I was thinking of the freeze case, which is also somewhat
> unlikely --- but if it were happening, it could easily happen on
> most/all pages of a table.

But that only happens in vacuum, which pg_dump does not do.

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

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