chore(sqlplanner): Sql planner another schema refactoring

[waralexrom]

Check List

• Tests has been run in packages where changes made if available
• Linter has been run for changed code
• Tests for the changes have been added if not covered yet
• Docs have been added / updated if required

Issue Reference this PR resolves

[For example #12]

Description of Changes Made (if issue reference is not provided)

[Description goes here]

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.68%. Comparing base (3e203e8) to head (356dad2).
Report is 43 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9038      +/-   ##
==========================================
- Coverage   82.68%   82.68%   -0.01%     
==========================================
  Files         221      221              
  Lines       78474    78474              
==========================================
- Hits        64890    64885       -5     
- Misses      13584    13589       +5     

Flag	Coverage Δ
cubesql	82.68% <ø> (-0.01%)	⬇️

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