*: Deprecate tidb_enable_table_partition and always set to ON

[mjonss]

What problem does this PR solve?

Issue Number: close #56189

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]

[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 assign hawkingrei, wjhuang2016, yudongusa for approval, ensuring that each of them provides their approval before proceeding. For more information see the Code Review Process.

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Needs approval from an approver in each of these files:

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• pkg/ddl/OWNERS
• pkg/planner/OWNERS
• pkg/sessionctx/variable/OWNERS
• pkg/statistics/OWNERS
• pkg/table/OWNERS

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[tiprow]

Hi @mjonss. Thanks for your PR.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.9332%. Comparing base (cf954e2) to head (8cdd181).
Report is 6 commits behind head on master.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #56190         +/-   ##
=================================================
- Coverage   73.4215%   56.9332%   -16.4883%     
=================================================
  Files          1600       1749        +149     
  Lines        443622     629202     +185580     
=================================================
+ Hits         325714     358225      +32511     
- Misses        97944     246296     +148352     
- Partials      19964      24681       +4717     

Flag	Coverage Δ
integration	39.4416% <100.0000%> (?)
unit	72.5006% <40.0000%> (+0.0134%)	⬆️

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

Components	Coverage Δ
dumpling	52.9567% <ø> (ø)
parser	∅ <ø> (∅)
br	63.2205% <ø> (+17.3342%)	⬆️

[mjonss]

/retest

[tiprow]

@mjonss: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/retest

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[ti-chi-bot]

@mjonss: 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
pull-br-integration-test	8cdd181	link	true	/test pull-br-integration-test

Full PR test history. Your PR dashboard.

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