Horton

Re: BUG: Postgres 14 + vacuum_defer_cleanup_age + FOR UPDATE + UPDATE

Peter Geoghegan <pg@bowt.ie>

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From: Peter Geoghegan <pg@bowt.ie>
To: Matthias van de Meent <boekewurm+postgres@gmail.com>
Cc: Michail Nikolaev <michail.nikolaev@gmail.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2023-01-06T00:50:24Z
Lists: pgsql-hackers 
On Thu, Jan 5, 2023 at 3:27 PM Peter Geoghegan <pg@bowt.ie> wrote:
> This particular error message is from the hardening added to Postgres
> 15 in commit e7428a99. So it's not surprising that Michail didn't see
> the same error on 14.

Reproduced this on HEAD locally (no docker), without any difficulty.

FWIW, I find that the "Assert(ItemIdIsNormal(lp));" at the top of
heap_lock_tuple() is the first thing that fails on my assert-enabled
build.

-- 
Peter Geoghegan

Commits

  1. Fix incorrect TAP test ordering

  2. pg_amcheck: Minor test speedups

  3. amcheck: Fix FullTransactionIdFromXidAndCtx() for xids before epoch 0

  4. amcheck: Fix ordering bug in update_cached_xid_range()

  5. Fix corruption due to vacuum_defer_cleanup_age underflowing 64bit xids

  6. Add hardening to catch invalid TIDs in indexes.

  7. Use full 64-bit XID for checking if a deleted GiST page is old enough.

  8. Avoid early reuse of btree pages, causing incorrect query results.