[WIP] ddl, meta: arg v2 for modify column

[joechenrh]

What problem does this PR solve?

Issue Number: ref #54436

Problem Summary:

What changed and how does it work?

As title.

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]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[tiprow]

Hi @joechenrh. Thanks for your PR.

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[ti-chi-bot]

PR needs rebase.

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[codecov]

Codecov Report

Attention: Patch coverage is 45.59585% with 105 lines in your changes missing coverage. Please review.

Project coverage is 75.3909%. Comparing base (df821b9) to head (7435fbd).
Report is 18 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #56405        +/-   ##
================================================
+ Coverage   73.2357%   75.3909%   +2.1551%     
================================================
  Files          1626       1648        +22     
  Lines        448692     457408      +8716     
================================================
+ Hits         328603     344844     +16241     
+ Misses        99977      90945      -9032     
- Partials      20112      21619      +1507     

Flag	Coverage Δ
integration	32.5032% <45.5958%> (?)

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

Components	Coverage Δ
dumpling	52.9478% <ø> (ø)
parser	∅ <ø> (∅)
br	62.6735% <ø> (+17.2020%)	⬆️

[ti-chi-bot]

@joechenrh: 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/build	7435fbd	link	true	/test build
idc-jenkins-ci-tidb/check_dev	7435fbd	link	true	/test check-dev
idc-jenkins-ci-tidb/mysql-test	7435fbd	link	true	/test mysql-test
idc-jenkins-ci-tidb/check_dev_2	7435fbd	link	true	/test check-dev2
idc-jenkins-ci-tidb/unit-test	7435fbd	link	true	/test unit-test

Full PR test history. Your PR dashboard.

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