fix: extra column in metrics

[betodealmeida]

SUMMARY

Similar to (and stacked upon) #17740, this handles the extra column in dataset metrics.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #17784 (928d467) into master (c49545a) will decrease coverage by 0.11%.
The diff coverage is 100.00%.

❗ Current head 928d467 differs from pull request most recent head 8baf887. Consider uploading reports for the commit 8baf887 to get more accurate results

@@            Coverage Diff             @@
##           master   #17784      +/-   ##
==========================================
- Coverage   67.03%   66.91%   -0.12%     
==========================================
  Files        1609     1609              
  Lines       64877    64882       +5     
  Branches     6863     6863              
==========================================
- Hits        43488    43416      -72     
- Misses      19525    19602      +77     
  Partials     1864     1864              

Flag	Coverage Δ
hive	?
mysql	82.19% <100.00%> (+<0.01%)	⬆️
postgres	82.24% <100.00%> (+<0.01%)	⬆️
python	82.32% <100.00%> (-0.26%)	⬇️
sqlite	81.92% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
superset/datasets/schemas.py	97.03% <100.00%> (+0.11%)	⬆️
superset/db_engines/hive.py	0.00% <0.00%> (-85.19%)	⬇️
superset/db_engine_specs/hive.py	70.27% <0.00%> (-16.99%)	⬇️
superset/views/database/mixins.py	81.03% <0.00%> (-1.73%)	⬇️
superset/db_engine_specs/presto.py	83.50% <0.00%> (-0.84%)	⬇️
superset/db_engine_specs/base.py	88.29% <0.00%> (-0.39%)	⬇️
superset/connectors/sqla/models.py	86.85% <0.00%> (-0.23%)	⬇️
superset/utils/core.py	89.64% <0.00%> (-0.12%)	⬇️

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