Implement Debug for `SessionStateBuilder

[alamb]

Is your feature request related to a problem or challenge?

Part of #12550

While working on https://github.com/datafusion-contrib/datafusion-dft I found it would be nice to have Debug for SessionStateBuilder so I could debug the actual state

Describe the solution you'd like

I would like SessionStateBuilder to implement Debug

Describe alternatives you've considered

I started working on this and it turns out many of the sub structs (like Analyzer and Optimizer don't implement debug). This I recommend making a series of PRs to slowly add debug to the necessary structures so we can enable it for evertthing

Additional context

No response

[alamb]

A good way to find out what is left would be to put #[derive(Debug)] on SessionStateBuilder and then work down the errors

[alamb]

I think this is also a good first issue as it has a well defined scope and it is largely mechanical (doesn't require deep codebase knowledge)

Note I made a first step here: #12556

[alamb]

Here is another PR: #12557

[OussamaSaoudi]

take

[AnthonyZhOon]

Added a PR: #12624

[AnthonyZhOon]

I started on CatalogProvider but ran into TableProvider requiring Debug, waiting on #12557 which covers this to merge.

[AnthonyZhOon]

Finished being able to derive Debug on SessionStateBuilder #12632 but I believe it still needs to implement formatting to be more useful

[alamb]

Finished being able to derive Debug on SessionStateBuilder #12632 but I believe it still needs to implement formatting to be more useful

Do you mean "derive a more usable Display" or something?

[AnthonyZhOon]

I think a pretty-print debug works okay using a println!("{:#?}", state), most of the noise in the default was from printing long Vecs of scalar functions which have been moved to the end of debug now.
Noticed that the missing fields in SessionState's Debug was from before we enabled it for the fields, so here's a pull request adding the remaining debug fields #12663 .
It's also possible to just derive Debug for both SessionState and SessionStateBuilder now.

[findepi]

Done in #12632. The issue can be closed.
thank you @AnthonyZhOon !