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nextcloud/lib/public/DB
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Carl Schwan cbe4a26156
fix(propagator): Improve lock behavior of propagator 
Fix possible dead locks when running the propagator caused by two
requests updating the same amount rows in transactions.

- Lock rows always in the same deterministic order by sorting the
  path_hash first

- On all database outside of sqlite, also do first a SELECT FOR UPDATE
  to lock all the rows used in batch UPDATE calls, afterward to decrease
  the risk of two requests trying to lock the same rows

Signed-off-by: Carl Schwan <carlschwan@kde.org>
(cherry picked from commit cae742d182)
2026-02-17 10:39:11 +01:00
..
Events chore: Add SPDX header 2024-05-24 13:11:22 +02:00
QueryBuilder fix(propagator): Improve lock behavior of propagator 2026-02-17 10:39:11 +01:00
Exception.php feat(db): add mapping for lock wait timeout 2024-05-29 11:10:43 +02:00
IPreparedStatement.php chore: Add SPDX header 2024-05-24 13:11:22 +02:00
IResult.php chore: Add SPDX header 2024-05-24 13:11:22 +02:00
ISchemaWrapper.php chore: apply new CSFixer rules 2025-07-01 16:26:50 +02:00
Types.php feat(AppFramework): Add full support for date / time / datetime columns 2024-10-17 18:31:42 +02:00