Import error when frequency value too big

[MaximMoinat]

As reported by Carlos Augusto Lima de Campos on the OHDSI Forums.

Problem does not occur when the frequency is imported as millions (i.e. 31429).

[MaximMoinat]

The frequency is stored in an int, and the maximum value of a Java integer is 2^31-1 = 2,147,483,647. Probably any frequency exceeding this will raise the above error.

We should either change the data type to a big integer OR raise a more insightful error.

[carlosalcampos]

Thanks @MaximMoinat !