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Currently QxEntityEditor maps SQL int/integer and long attributes to C++ long. This is not a good solution, since its length is platform dependent and hence not portable. For this exact reason also QVariant has no intrinsic support for it.

I think that "long" variables should be avoided as much as possible in favour of "int", "qint64", "long long" etc.

Hello,

You can easily change the default mapping used by QxEntityEditor to map your SQL numeric type to qint64 for example.
In the import screen, there is a list of mappings where you can change the default behavior.

More details in documentation here : https://www.qxorm.com/qxorm_en/manual_q ... sql_import