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(-)