Re: XLog changes for 9.3

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От Robert Haas
Тема Re: XLog changes for 9.3
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Msg-id CA+TgmoYWGrrt7d=vXhbp1rbf22bmm-FjrSPSPD1EnYnW0pevog@mail.gmail.com
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Ответ на Re: XLog changes for 9.3  ("Kevin Grittner" <Kevin.Grittner@wicourts.gov>)
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On Thu, Jun 7, 2012 at 1:40 PM, Kevin Grittner
<Kevin.Grittner@wicourts.gov> wrote:
> Robert Haas <robertmhaas@gmail.com> wrote:
>
>> But if you're just using regexp matching against pathnames, your
>> tool will be just fine.  Do your tools actually rely on the
>> occasional absence of a file in what would otherwise be the usual
>> sequence of files?
>
> To save "snapshot" backups for the long term, we generate a list of
> the specific WAL files needed to reach a consistent recovery point
> from a given base backup.  We keep monthly snapshot backups for a
> year.  We currently determine the first and last file needed, and
> then create a list of all the WAL files to save.  We error out if
> any are missing, so we do skip the FF file.

OK, I see.  Still, I think there are a lot of people who don't do
anything that complex, and won't be affected.  But I agree we had
better clearly release-note it as an incompatibility.

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


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