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pg_visibility: Fix incorrect buffer lock description in comment.

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Although the comment in collect_corrupt_items() stated that the buffer
is locked in exclusive mode, it is actually locked in shared mode.

Author: Chao Li <lic@highgo.com>
Discussion: https://postgr.es/m/CAEoWx2kkhxgfp=kinPMetnwHaa0JjR6YBkO_0gg0oiy6mu7Zjw@mail.gmail.com
This commit is contained in:
Masahiko Sawada
2026-01-05 15:49:43 -08:00
parent b85d5dc0e7
commit e212a0f8e6
1 changed files with 1 additions and 1 deletions
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contrib/pg_visibility/pg_visibility.c
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@ -818,7 +818,7 @@ collect_corrupt_items(Oid relid, bool all_visible, bool all_frozen)
*
* From a concurrency point of view, it sort of sucks to
* retake ProcArrayLock here while we're holding the buffer
* exclusively locked, but it should be safe against
* locked in shared mode, but it should be safe against
* deadlocks, because surely
* GetStrictOldestNonRemovableTransactionId() should never
* take a buffer lock. And this shouldn't happen often, so