presto-main/src/main/java/io/prestosql/type/BigintOperators.java/BigintOperators/saturatedFloorCastToInteger
class BigintOperators:    @ScalarOperator(SATURATED_FLOOR_CAST)
    @SqlType(StandardTypes.INTEGER)
    public static long saturatedFloorCastToInteger(@SqlType(StandardTypes.BIGINT) long value)
    {
        return Ints.saturatedCast(value);
    }