Re: PITR recovery

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От Ben K.
Тема Re: PITR recovery
Дата
Msg-id Pine.GSO.4.64.0701091045330.27635@coe.tamu.edu
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Ответ на Re: PITR recovery  ("Simon Riggs" <simon@2ndquadrant.com>)
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> PITR doesn't go back in time. It only supports roll-forward from a prior
> base backup using the logs, stopping at a predefined time/xid/endoflogs.
> Going backwards using the logs is mostly impossible because the log
> records don't hold enough info to un-erase things.
>
> It is theoretically possible to enhance the server to be able to rewind
> the data in a table by uncommitting transactional changes, but again you
> can't put back data that has been emoved by VACUUM. That feature would
> be similar to flashback, but its more complex then it sounds at first
> hearing. I wouldn't hold your breath while waiting for that.

It was not that it's essential. Thanks for sharing the insight.


Regards,

Ben K.
Developer
http://benix.tamu.edu

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