Fix bugs for superset query

[passren]

No description provided.

[codecov-commenter]

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Codecov Report

❌ Patch coverage is 56.52174% with 30 lines in your changes missing coverage. Please review.
✅ Project coverage is 74.70%. Comparing base (4c4e7ed) to head (27a240b).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
pymongosql/superset_mongodb/detector.py	39.13%	14 Missing ⚠️
pymongosql/sqlalchemy_mongodb/__init__.py	37.50%	10 Missing ⚠️
pymongosql/superset_mongodb/executor.py	77.77%	4 Missing ⚠️
pymongosql/result_set.py	66.66%	2 Missing ⚠️
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Additional details and impacted files

@@            Coverage Diff             @@
##             main       #5      +/-   ##
==========================================
- Coverage   75.27%   74.70%   -0.57%     
==========================================
  Files          19       19              
  Lines        2261     2317      +56     
==========================================
+ Hits         1702     1731      +29     
- Misses        559      586      +27     

Flag	Coverage Δ
unittests	74.70% <56.52%> (-0.57%)	⬇️

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