fix: missing mulitiple metrics on pivot operator

[zhaoyongjie]

SUMMARY

fixes: #16023
closes: #16023

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

After

TESTING INSTRUCTIONS

UT converage

ADDITIONAL INFORMATION

• Has associated issue:
• 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

[villebro]

Thanks for the quick fix - minor non-blocking stylistic proposal

[codecov]

Codecov Report

Merging #16026 (8ef3051) into master (3061b6a) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master   #16026   +/-   ##
=======================================
  Coverage   76.79%   76.79%           
=======================================
  Files         990      990           
  Lines       52517    52517           
  Branches     6642     6642           
=======================================
  Hits        40330    40330           
  Misses      11963    11963           
  Partials      224      224           

Flag	Coverage Δ
mysql	81.57% <100.00%> (-0.05%)	⬇️
postgres	81.63% <100.00%> (+0.04%)	⬆️
python	81.72% <100.00%> (ø)
sqlite	81.27% <100.00%> (+0.04%)	⬆️

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

Impacted Files	Coverage Δ
superset/utils/pandas_postprocessing.py	84.80% <100.00%> (ø)

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[junlincc]

/testenv up ENABLE_EXPLORE_DRAG_AND_DROP=true

[github-actions]

@junlincc Ephemeral environment spinning up at http://34.222.149.55:8080. Credentials are admin/admin. Please allow several minutes for bootstrapping and startup.

[suddjian]

lgtm

[junlincc]

/testenv up FEATURE_ENABLE_EXPLORE_DRAG_AND_DROP=true

[github-actions]

@junlincc Ephemeral environment spinning up at http://54.184.39.20:8080. Credentials are admin/admin. Please allow several minutes for bootstrapping and startup.

[jinghua-qa]

I have tried in the test env with dd on, I can add multi metrics but DATA panel is not scrollable, and user need to click collapse/expand button in order to see the rest of the filed in DATA and for south tables

[junlincc]

lgtm
https://user-images.githubusercontent.com/67837651/127907559-38b6326d-247c-4082-87ab-f88de0e08490.mov

[github-actions]

Ephemeral environment shutdown and build artifacts deleted.