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From: Tom Lane <[email protected]>
To: Tomas Vondra <[email protected]>
Cc: Thomas Munro <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: Michael Paquier <[email protected]>
Cc: Andrew Dunstan <[email protected]>
Cc: Amul Sul <[email protected]>
Cc: Zsolt Parragi <[email protected]>
Cc: Robert Haas <[email protected]>
Cc: Chao Li <[email protected]>
Cc: Anthonin Bonnefoy <[email protected]>
Cc: Fujii Masao <[email protected]>
Cc: Jakub Wartak <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: pg_waldump: support decoding of WAL inside tarfile
Date: Thu, 02 Apr 2026 13:43:36 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
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Tomas Vondra <[email protected]> writes:
> On 4/2/26 18:29, Tom Lane wrote:
>> Pushed, thanks for reviewing!  In the event I decided to back-patch to
>> v18, where these fixes could protect pg_verifybackup against tar files
>> it can't handle.

> It seems jay/hippopotamus failed on this, for some reason.

Hmm:

#   Failed test 'corrupt backup fails verification: extra_file: matches'
#   at t/003_corruption.pl line 198.
#                   'pg_verifybackup: error: pax extensions to tar format are not supported
# '
#     doesn't match '(?^:extra_file.*present (on disk|in archive "[^"]+") but not in the manifest)'

> Maybe there's something special about OpenSUSE?

Apparently its version of "tar" will produce pax-extended files
at the drop of a hat.  I have an OpenSUSE image around here
somewhere, will see if I can reproduce this.  But while I'm
asking, what filesystem are those animals running on top of?

			regards, tom lane

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  Subject: Re: pg_waldump: support decoding of WAL inside tarfile
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