[5.4] Fix Queue Worker database connection issue #19263
Merged
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This PR solves #19242 as confirmed in that issue.
It relates to two separate issues:
The
DetectsLostConnections
trait should include some string around transaction issues onnull
(which would imply a lost connection).A transaction error on
null
results in aThrowable
- not anException
- so we need to have worker check for lost connections onThrowable
as well.