From: | Karsten Hilbert <Karsten(dot)Hilbert(at)gmx(dot)net> |
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To: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Is it possible to recover the schema from the raw files? |
Date: | 2016-04-24 15:50:21 |
Message-ID: | 20160424155021.GI22543@hermes.hilbert.loc |
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Lists: | pgsql-general |
On Sun, Apr 24, 2016 at 04:35:56PM +0100, Tomas J Stehlik wrote:
> > So did you do a schema only dump or a complete dump?
>
> There is no dump. There are just raw files.
I believe Adrian wanted to know whether you attempted a
schema or complete dump *after* the fact, like what he
suggested a mail ago or so.
In case the FS corruption "only" affects raw files related to
user data (as opposed to also affecting data in pg_* tables)
a schema-only dump does have a slight chance of success.
That chance might potentially be increased by judicious use
of zero_damaged_pages and related low-level techniques the
prerequisite conditions of which people seem to have been
trying to inquire about upthread.
> The question potentially targets someone who could tell whether something
> like this is possible.
"possible" depends no the exact circumstances, the details of
which people have been trying to tease out.
Regards,
Karsten
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