feat: Area viz migration

[zhaoyongjie]

SUMMARY

1. Migrate Area Chart to v2
2. fix migration double heads

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

N/A

TESTING INSTRUCTIONS

# upgrade
superset db upgrade

# downgrade
superset db downgrade

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 #20359 (45680cc) into master (e331640) will increase coverage by 0.07%.
The diff coverage is 100.00%.

❗ Current head 45680cc differs from pull request most recent head b6102c5. Consider uploading reports for the commit b6102c5 to get more accurate results

@@            Coverage Diff             @@
##           master   #20359      +/-   ##
==========================================
+ Coverage   66.78%   66.85%   +0.07%     
==========================================
  Files        1754     1754              
  Lines       65857    65748     -109     
  Branches     7030     6950      -80     
==========================================
- Hits        43982    43957      -25     
+ Misses      20086    20028      -58     
+ Partials     1789     1763      -26     

Flag	Coverage Δ
hive	53.78% <42.10%> (-0.11%)	⬇️
mysql	82.42% <100.00%> (+0.06%)	⬆️
postgres	82.49% <100.00%> (+0.06%)	⬆️
presto	53.64% <42.10%> (-0.11%)	⬇️
python	82.93% <100.00%> (+0.05%)	⬆️
sqlite	82.28% <100.00%> (+0.06%)	⬆️
unit	50.80% <100.00%> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
superset/utils/migrate_viz.py	95.18% <100.00%> (+1.24%)	⬆️
...et-frontend/src/dashboard/actions/sliceEntities.js	53.84% <0.00%> (-20.44%)	⬇️
superset/views/dashboard/views.py	65.51% <0.00%> (-0.77%)	⬇️
superset/datasets/dao.py	93.57% <0.00%> (-0.55%)	⬇️
superset/utils/csv.py	97.91% <0.00%> (-0.36%)	⬇️
superset/views/chart/views.py	89.74% <0.00%> (-0.26%)	⬇️
superset/models/dashboard.py	76.06% <0.00%> (-0.23%)	⬇️
superset/commands/utils.py	97.14% <0.00%> (-0.16%)	⬇️
superset/reports/dao.py	83.20% <0.00%> (-0.14%)	⬇️
superset/views/core.py	77.36% <0.00%> (ø)
... and 81 more

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[michael-s-molina]

Wouldn't this commit only after all the values have been merged as opposed to committing every thousand values?

[zhaoyongjie]

same as the TreeMap migration, optimize write speed.
The yield_per just optimizes the memory used rate when retrieving large data, the commit() only run one time after the update.

[john-bodley]

@zhaoyongjie would you mind explaining the purpose of this migration if the "Area Chart" chart type still exists? Is the intention to fully deprecate said chart type? If so this migration would need to be re-run.

[zhaoyongjie]

@john-bodley Sorry, I'm stuck in another PR with a cypress problem. I think the migration process should be re-run after resolve the frontend migration issue.