Is your feature request related to a problem or challenge? Please describe what you are trying to do.

#5343 (comment)

We can maybe go a step farther and only put " if the identifier would be normalized (e.g. it has something other than lowercase ascii letters) -- as a potential follow on PR

Describe the solution you'd like

Fix quoting behaviour to only do so if detect non-lowercase ascii letters in relation/name:

https://github.com/apache/arrow-datafusion/blob/35a3acf562e4e982564f1ebb1b1ce1edef07a1b1/datafusion/common/src/column.rs#L113-L123

Describe alternatives you've considered

Just leave it as always quoted by default.

Additional context

Also consider quoting other places where column/table names appear (e.g. in other error messages)