ddl: directly use BackendConfig rather than use lightning config

[lance6716]

What problem does this PR solve?

Issue Number: ref #54436

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]

Hi @lance6716. Thanks for your PR.

PRs from untrusted users cannot be marked as trusted with /ok-to-test in this repo meaning untrusted PR authors can never trigger tests themselves. Collaborators can still trigger tests on the PR using /test all.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.5489%. Comparing base (8f75ed3) to head (a58119e).
Report is 10 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #55433        +/-   ##
================================================
+ Coverage   72.9033%   75.5489%   +2.6455%     
================================================
  Files          1576       1599        +23     
  Lines        440819     448888      +8069     
================================================
+ Hits         321372     339130     +17758     
+ Misses        99705      88493     -11212     
- Partials      19742      21265      +1523     

Flag	Coverage Δ
integration	52.0348% <98.5915%> (?)
unit	71.9449% <7.0422%> (-0.0258%)	⬇️

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	63.0347% <ø> (+17.0949%)	⬆️

[D3Hunter]

after this pr we can move this pkg to lightning dir

[lance6716]

/retest

[tiprow]

@lance6716: 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]

[LGTM Timeline notifier]

Timeline:

• 2024-08-15 09:16:38.255169934 +0000 UTC m=+432282.958639595: ☑️ agreed by D3Hunter.
• 2024-08-16 01:45:32.663413889 +0000 UTC m=+491617.366883532: ☑️ agreed by tangenta.

[lance6716]

/hold

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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Needs approval from an approver in each of these files:

• pkg/ddl/OWNERS [tangenta]
• pkg/lightning/OWNERS [D3Hunter]

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[lance6716]

/unhold