[SQL Lab] Improve perf for filterable table rendering

[etr2460]

CATEGORY

Choose one

• Bug Fix
• Enhancement (new features, refinement)
• Refactor
• Add tests
• Build / Development Environment
• Documentation

SUMMARY

Uses @kristw's new getMultipleTextDimensions to improve perf about 3x for FilterableTable rendering

TEST PLAN

Ensure tables in sql lab still render properly

ADDITIONAL INFORMATION

• Has associated issue:
• Changes UI
• Requires DB Migration.
• Confirm DB Migration upgrade and downgrade tested.
• Introduces new feature or API
• Removes existing feature or API

REVIEWERS

@kristw @graceguo-supercat @betodealmeida

[kristw]

Hmm. Code looks good. I was not aware that array.flat() has been implemented.
Not sure why CI fails. Does this work locally for you?

[etr2460]

array.flat() is now implemented in modern browsers, but cypress uses an older version of headless chrome (according to @graceguo-supercat). I've reverted to the old school [].concat(...array) syntax.

[graceguo-supercat]

see discussion in cypress community: https://gitter.im/cypress-io/cypress/archives/2019/01/24,
[].flat() is not supported in electron 59.

[etr2460]

cc @robdiciuccio if you're interested in some of the client side sql lab perf fixes

[codecov-io]

Codecov Report

Merging #8011 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #8011      +/-   ##
==========================================
+ Coverage   65.58%   65.58%   +<.01%     
==========================================
  Files         469      469              
  Lines       22461    22462       +1     
  Branches     2438     2437       -1     
==========================================
+ Hits        14730    14731       +1     
  Misses       7611     7611              
  Partials      120      120

Impacted Files	Coverage Δ
...src/components/FilterableTable/FilterableTable.jsx	78.73% <100%> (+0.12%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 6df2a71...a1bc4bf. Read the comment docs.