ddl: partially revert removing auto id rebase from submitter

[joechenrh]

What problem does this PR solve?

Issue Number: ref #60804

Problem Summary:

What changed and how does it work?

In #60804, we move auto id rebase from submitter to executor, to ensure the atomicity of create table.

In most cases, there are no problem with such changes. But BR sometimes backup db to lower version of TiDB cluster. For example, if BR with ver9.0 (or any version with #60804) backups db to TiDB with ver7.5 (or any version without #60804), rebase won't be executed by anyone.

To temporary solve this, this PR revert back part of the changes in #60804 to make backup happy again 😢.

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.

Manual tests TBD.

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]

Hi @joechenrh. Thanks for your PR.

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[joechenrh]

/hold

BR is now testing...

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.6092%. Comparing base (e59b6ea) to head (0dc8d96).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #64356        +/-   ##
================================================
+ Coverage   72.7175%   73.6092%   +0.8916%     
================================================
  Files          1861       1883        +22     
  Lines        504823     512820      +7997     
================================================
+ Hits         367095     377483     +10388     
+ Misses       115430     111628      -3802     
- Partials      22298      23709      +1411     

Flag	Coverage Δ
integration	39.2631% <ø> (?)

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Components	Coverage Δ
dumpling	52.8700% <ø> (ø)
parser	∅ <ø> (∅)
br	58.7763% <ø> (+12.5648%)	⬆️

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: D3Hunter, GMHDBJD

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• pkg/ddl/OWNERS [D3Hunter,GMHDBJD]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-11-07 11:09:13.606948411 +0000 UTC m=+441203.049978291: ☑️ agreed by GMHDBJD.
• 2025-11-07 12:36:35.545103734 +0000 UTC m=+446444.988133623: ☑️ agreed by D3Hunter.