presto-main/src/main/java/io/prestosql/type/DateOperators.java/DateOperators/greaterThan
class DateOperators:    @ScalarOperator(GREATER_THAN)
    @SqlType(StandardTypes.BOOLEAN)
    public static boolean greaterThan(@SqlType(StandardTypes.DATE) long left, @SqlType(StandardTypes.DATE) long right)
    {
        return left > right;
    }