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Subject: Re: [BUG] false positive in bt_index_check in case of short 4B
 varlena datum
From: "Andrey M. Borodin" <x4mmm@yandex-team.ru>
In-Reply-To: <0FDE2089-D306-4CBB-AD1F-EC4B419E3B33@yandex-team.ru>
Date: Sun, 7 Jan 2024 23:33:56 +0500
Cc: pgsql-bugs@postgresql.org,
 y sokolov <y.sokolov@postgrespro.ru>,
 Alexander Lakhin <exclusion@gmail.com>
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Message-Id: <2570ACF2-F1B8-49F2-BA06-7AF9F807BDA6@yandex-team.ru>
References: <7bdbe559-d61a-4ae4-a6e1-48abdf3024cc@postgrespro.ru>
 <0FDE2089-D306-4CBB-AD1F-EC4B419E3B33@yandex-team.ru>
To: Michael Zhilin <m.zhilin@postgrespro.ru>
Archived-At: <https://www.postgresql.org/message-id/2570ACF2-F1B8-49F2-BA06-7AF9F807BDA6%40yandex-team.ru>
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> On 7 Jan 2024, at 23:04, Andrey M. Borodin <x4mmm@yandex-team.ru> =
wrote:
>=20
> I see that using a temp file in PG_ABS_SRCDIR is common approach. But =
still I want to ask, maybe can we develop some clever way to reproduce =
the bug without external file?

BTW this stuff is causing problems in CFbot [0,1]
COPY varlena_bug TO :'filename';
+ERROR:  could not open file =
"/tmp/cirrus-ci-build/contrib/amcheck/results/varlena_bug.dmp" for =
writing: No such file or directory
+HINT:  COPY TO instructs the PostgreSQL server process to write a file. =
You may want a client-side facility such as psql's \copy.


Best regards, Andrey Borodin.

[0] =
https://api.cirrus-ci.com/v1/artifact/task/4880592609738752/testrun/build/=
testrun/amcheck/regress/regression.diffs
[1] https://github.com/x4m/postgres_g/runs/20240081462