Oracle numeric type mapping with no specifications of precision / scale

[dmiorandi]

I've found another issue on Oracle numeric type mapping in querydsl-sql generator.
When I use NUMERIC with no specification of size and digits value should be mapped on a Long value, but i get a Double.

http://docs.oracle.com/cd/B28359_01/server.111/b28318/datatype.htm#autoId14

in JDBCTypeMapping class in method getNumericClass, input is size=0, digits=-127
and output is Double.
The following code

       } else if (digits == 0) {
            if (size > 18) {
                return Long.class;
            } else if (size > 5) {

should be modified into something like this

       } else if (digits <= 0) {
            if (size > 18 || size == 0) {
                return Long.class;
            } else if (size > 5) {

In this way default NUMERIC is mapped to Long.

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