*: a demo PR to verify infoschema v1 and infoschema v2

[wjhuang2016]

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

[tiprow]

@wjhuang2016: 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	dac24c0	link	true	/test fast_test_tiprow

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.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.8838%. Comparing base (db54a3b) to head (dac24c0).
Report is 128 commits behind head on master.

❗ Current head dac24c0 differs from pull request most recent head 1df26a0

Please upload reports for the commit 1df26a0 to get more accurate results.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #55030        +/-   ##
================================================
- Coverage   74.8446%   73.8838%   -0.9609%     
================================================
  Files          1576       1560        -16     
  Lines        365724     438629     +72905     
================================================
+ Hits         273725     324076     +50351     
- Misses        72209      94251     +22042     
- Partials      19790      20302       +512     

Flag	Coverage Δ
integration	42.1206% <ø> (?)

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

Components	Coverage Δ
dumpling	52.9567% <ø> (-2.2327%)	⬇️
parser	∅ <ø> (∅)
br	62.1610% <ø> (+14.3629%)	⬆️

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please ask for approval from wjhuang2016 and additionally assign fixdb, windtalker for approval(Please ensuring that each of them provides their approval before proceeding). For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• OWNERS
• pkg/ddl/OWNERS
• pkg/domain/OWNERS
• pkg/expression/OWNERS
• pkg/infoschema/OWNERS
• pkg/planner/OWNERS
• pkg/table/OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[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]

PR needs rebase.

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.

[ti-chi-bot]

@wjhuang2016: 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
pull-lightning-integration-test	1df26a0	link	true	/test pull-lightning-integration-test
pull-unit-test-ddlv1	1df26a0	link	true	/test pull-unit-test-ddlv1
pull-integration-e2e-test	1df26a0	link	true	/test pull-integration-e2e-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/test-infra repository. I understand the commands that are listed here.