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help / color / mirror / Atom feedFrom: Alexander Korotkov <[email protected]>
To: [email protected]
Subject: pgsql: Use heap_inplace_update() to unset pg_database.dathasloginevt
Date: Sun, 11 Feb 2024 22:52:37 +0000
Message-ID: <[email protected]> (raw)
Use heap_inplace_update() to unset pg_database.dathasloginevt
Doing this instead of regular updates serves two purposes. First, that avoids
possible waiting on the row-level lock. Second, that avoids dealing with
TOAST.
It's known that changes made by heap_inplace_update() may be lost due to
concurrent normal updates. However, we are OK with that. The subsequent
connections will still have a chance to set "dathasloginevt" to false.
Reported-by: Alexander Lakhin
Discussion: https://postgr.es/m/e2a0248e-5f32-af0c-9832-a90d303c2c61%40gmail.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/8be93177c46b0f6a29a7376229b7ee002066d5f8
Modified Files
--------------
src/backend/commands/event_trigger.c | 36 ++++++++++++++++++++++++++++++++----
1 file changed, 32 insertions(+), 4 deletions(-)
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Subject: Re: pgsql: Use heap_inplace_update() to unset pg_database.dathasloginevt
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