Describe the bug
part of #14914
While adding more complex physical plan explain format, here are some issues met while parsing format line: writeln!(f, "{}={}", key, value) into extra_info in render tree:
- Every line should only be kv format.
- If there is a \n inside the key or value, it must be treated as a new line.
To Reproduce
No response
Expected behavior
We need a more flexible parser.
Additional context
No response