How do I ignore certain queries?

I have a lot of logs where I see comments for statements like `BEGIN` and `COMMIT` which I want to disable for performance reasons. e.g
```
BEGIN /*hostname:MY_APPLICATION_NAME,context:CUSTOM CONTEXT*/
```

Is there a way to disable marginalia comments for certain queries?

The issue names no file or test entry point; begin by locating the Ruby/ActiveRecord integration that adds Marginalia comments and reproduce the BEGIN and COMMIT examples. Done should be a documented, tested way to exclude selected queries without disabling comments for other SQL.

Written by the indexing model from the issue text.