Hello, When testing our app with the newest Qt, I bumped into the error in the subject (and nothing works :)).
How are we supposed to use SQLite :memory: databases from multiple threads where each QSqlDatabase::addDatabase() call creates a new, empty db? SQLite driver embedded in QtSql is compiled with THREADSAFE=1 [1][2]. So it's safe to use it from multiple threads. I'm sure not all SQL drivers come with thread safety guarantees like this, but limiting the functionality of the whole module just because one or two database backends are not threadsafe is not the right move. This should be a big fat warning in the documentation but enforcing it like this is too harsh. We are all C++ programmers so we are supposed to know what we are doing (hahaha :))) It's not Qt's job to protect us from our own choices. Please revert this change or at least make it driver-specific so those of us who use SQLite from multiple threads are don't have to patch Qt. Best regards, Burak [1]: https://sqlite.org/compile.html#threadsafe [2]: You can check it by running PRAGMA compile_options _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
