Table label rule ID is ambiguous

## Bug Report

Please answer these questions before submitting your issue. Thanks!

### 1. Minimal reproduce step (Required)
```sql
use test;
create table `a/b` (c int primary key);
alter table `a/b` attributes "schedule=deny";
```

### 2. What did you expect to see? (Required)

```
mysql> select * from information_schema.attributes;
+---------------+-----------+-----------------+------------------------------------------------------------------------------+
| ID | TYPE | ATTRIBUTES | RANGES |
+---------------+-----------+-----------------+------------------------------------------------------------------------------+
| schema/test/a/b | key-range | "schedule=deny" | [xxx, xxx] |
+---------------+-----------+-----------------+------------------------------------------------------------------------------+
1 row in set (0.00 sec)
```

### 3. What did you see instead (Required)

```
mysql> select * from information_schema.attributes;
Empty set (0.00 sec)
```

### 4. What is your TiDB version? (Required)

```
master
```