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cbe4a26156
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
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