[Tech Request]: optimize partition state for in-memory row|tombstone insert

### Is there an existing issue for the same tech request?

- [X] I have checked the existing issues.

### Does this tech request not affect user experience?

- [X] This tech request doesn't affect user experience.

### What would you like to be added ?

```Markdown
We don't need to update 2 in-memory btree index for row|tombstone insert.
For row insert, only update primaryIndex.
For tombstone insert, only update rows
```

### Why is this needed ?

_No response_

### Additional information

_No response_