docs: Query Profiler addition to User Guide

[TNieuwdorp]

No description provided.

[ritchie46]

You can think of the logical plan as the EXPLAIN in SQL. It describes what steps are performed and in with order, independent of physical engine.

[TNieuwdorp]

Is it directly a graph presentation of the Polars DSL, or is there already some processing done on it?

[ritchie46]

This is really subpar from the dashboard. If we add this to the user-guide, I think it should be somewhere else.

[TNieuwdorp]

Yeah, I agree. The interface is way more detailed and practical to explore. I already put this in its own section to separate it. But since it is Polars Cloud SDK functionality for query profiling, I wouldn't know where else to put it?
If you want to leave it out completely for now, let me know.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.38%. Comparing base (375fdc8) to head (32afe1d).

Additional details and impacted files

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- Coverage   81.38%   81.38%   -0.01%     
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  Files        1794     1794              
  Lines      245003   245003              
  Branches     3080     3080              
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- Hits       199393   199390       -3     
- Misses      44824    44827       +3     
  Partials      786      786              

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