[Feature request] Optimized code ASTVisitor.java

### Search before asking

- [X] I searched in the [issues](https://github.com/apache/iotdb/issues) and found nothing similar.

### Motivation

Optimized code ASTVisitor.java

### Solution

_No response_

### Alternatives

_No response_

### Are you willing to submit a PR?

- [X] I'm willing to submit a PR!

Start by locating ASTVisitor.java in the IoTDB repository and reviewing its current implementation and callers. The issue does not describe which code should be optimized, the expected behavior, performance target, or tests, so the completion criteria need to be clarified before implementation.

Written by the indexing model from the issue text.