**Describe the unexpected behaviour**
OFFSET can work without ORDER BY , but OFFSET FETCH cannot work without ORDER BY, and throw strange syntax error: `failed at 'FETCH' Expected FETCH`.

**How to reproduce**
* Clickhouse Version: `21.10.2.15`
* `CREATE TABLE test_fetch (a INT, b INT) ENGINE=MergeTree ORDER BY b;`
* `INSERT INTO test_fetch VALUES (1, 1), (2, 1), (3, 4), (1, 4), (5, 4), (0, 6), (5, 7);`
* `OFFSET` without `ORDER BY` works: `SELECT * FROM test_fetch OFFSET 3 ROW;`
* `OFFSET FETCH` with `ORDER BY` works: `SELECT * FROM test_fetch ORDER BY a OFFSET 3 ROWS FETCH FIRST 3 ROWS ONLY;`
* `OFFSET FETCH` without `ORDER BY`  does ***NOT*** work: `SELECT * FROM test_fetch OFFSET 3 ROWS FETCH FIRST 3 ROWS ONLY;`

**Expected behavior**
Same behavior or correct error message.

**Error message and/or stacktrace**
![OFFSET-FETCH](https://user-images.githubusercontent.com/3500109/139619530-04433404-73ed-4fc6-a76a-68cb65a5bb31.png)


{
#define M(VALUE, NAME) names[VALUE] = std::string_view(#NAME);
            APPLY_FOR_ERROR_CODES(M)
#undef M
        }
    } error_codes_names;
    std::string_view getName(ErrorCode error_code)
    {
        if (error_code < 0 || error_code >= END)
            return std::string_view();
        return error_codes_names.names[error_code];
    }
    ErrorCode getErrorCodeByName(std::string_view error_name)
    {
        for (size_t i = 0, end = ErrorCodes::end(); i < end; ++i)
        {
            std::string_view name = ErrorCodes::getName(i);
            if (name.empty())
                continue;
            if (name == error_name)
                return i;
        }
        throw Exception(NO_SUCH_ERROR_CODE, "No error code with name: '{}'", error_name);
    }
    ErrorCode end() { return END + 1; }