pgsql: amcheck: Normalize index tuples containing uncompressed varlena

From: Alexander Korotkov <akorotkov(at)postgresql(dot)org>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: amcheck: Normalize index tuples containing uncompressed varlena
Date: 2024-03-23 22:08:59
Message-ID: E1ro9Xv-005Kn0-50@gemulon.postgresql.org
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amcheck: Normalize index tuples containing uncompressed varlena

It might happen that the varlena value wasn't compressed by index_form_tuple()
due to current storage parameters. If compression is currently enabled, we
need to compress such values to match index tuple coming from the heap.

Backpatch to all supported versions.

Discussion: https://postgr.es/m/flat/7bdbe559-d61a-4ae4-a6e1-48abdf3024cc%40postgrespro.ru
Author: Andrey Borodin
Reviewed-by: Alexander Lakhin, Michael Zhilin, Jian He, Alexander Korotkov
Backpatch-through: 12

Branch
------
REL_12_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/d603e674462d7c4df0e88b7a61d4ae14ae3ed191

Modified Files
--------------
contrib/amcheck/expected/check_btree.out | 10 ++++++++++
contrib/amcheck/sql/check_btree.sql | 6 ++++++
contrib/amcheck/verify_nbtree.c | 13 +++++++++++++
3 files changed, 29 insertions(+)

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