presto-main/src/main/java/io/prestosql/operator/scalar/MathFunctions.java/MathFunctions/isFinite
class MathFunctions:    @Description("test if value is finite")
    @ScalarFunction
    @SqlType(StandardTypes.BOOLEAN)
    public static boolean isFinite(@SqlType(StandardTypes.DOUBLE) double num)
    {
        return Doubles.isFinite(num);
    }