I read about terminating a thread and it's not something I'm going to consider as long as I'm sure it's safe to do (and I probably won't be with QSqlQuery::exec()).
Unfortunately I'm going to kill them fairly often.
For me it's not even a last resort. For me it's unacceptable to write application in a way it allows situations in which application may crash (in theory memory leaks lead to using up all memory, so it's also a thing leading to crash).
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