DO NOT MERGE: POC: only get table info once

[0xPoe]

What problem does this PR solve?

Issue Number: close #xxx

Problem Summary:

What changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[ti-chi-bot]

[FORMAT CHECKER NOTIFICATION]

Notice: To remove the do-not-merge/needs-linked-issue label, please provide the linked issue number on one line in the PR body, for example: Issue Number: close #123 or Issue Number: ref #456.

_{📖 For more info, you can check the "Contribute Code" section in the development guide.}

---

Notice: To remove the do-not-merge/needs-tests-checked label, please finished the tests then check the finished items in description.

For example:

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

_{📖 For more info, you can check the "Contribute Code" section in the development guide.}

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[tiprow]

@0xPoe: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
fast_test_tiprow	8fe1463	link	true	/test fast_test_tiprow

Full PR test history. Your PR dashboard.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.0017%. Comparing base (c53042b) to head (8fe1463).
⚠️ Report is 24 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #64521        +/-   ##
================================================
+ Coverage   72.7199%   73.0017%   +0.2817%     
================================================
  Files          1864       1889        +25     
  Lines        505545     521200     +15655     
================================================
+ Hits         367632     380485     +12853     
- Misses       115586     117388      +1802     
- Partials      22327      23327      +1000     

Flag	Coverage Δ
integration	50.3983% <ø> (?)
unit	72.5497% <100.0000%> (+0.2574%)	⬆️

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

Components	Coverage Δ
dumpling	52.8700% <ø> (ø)
parser	∅ <ø> (∅)
br	45.7362% <ø> (-0.4743%)	⬇️

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[ti-chi-bot]

@0xPoe: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
idc-jenkins-ci-tidb/check_dev	8fe1463	link	true	/test check-dev
pull-build-next-gen	8fe1463	link	true	/test pull-build-next-gen
idc-jenkins-ci-tidb/build	8fe1463	link	true	/test build
pull-lightning-integration-test	8fe1463	link	true	/test pull-lightning-integration-test

Full PR test history. Your PR dashboard.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.