Whether Infinity/-Infinity can be inserted in a column that uses this DataType.
Whether NaN can be inserted in a column that uses this DataType.
Whether this dialect supports unconstrained numeric/decimal columns. i.e. columns where numeric values of any length can be stored. The SQL standard requires that "NUMERIC" with no option be equal to "NUMERIC(0,0)", but some dialects (postgres) interpret it as an unconstrained numeric.
Whether this dialect supports the unsigned option natively
Whether this dialect supports constrained numeric/decimal columns. i.e. columns where numeric values of any length can be stored.