*: init ctx for extractWorker

[lance6716]

What problem does this PR solve?

Issue Number: close #55217

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.

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: D3Hunter, wjhuang2016

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-08-06 09:24:26.703701521 +0000 UTC m=+343996.570800608: ☑️ agreed by wjhuang2016.
• 2024-08-06 09:33:50.502645483 +0000 UTC m=+344560.369744570: ☑️ agreed by D3Hunter.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.6756%. Comparing base (1985662) to head (72cd601).
Report is 361 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #55228        +/-   ##
================================================
+ Coverage   74.7018%   75.6756%   +0.9738%     
================================================
  Files          1570       1570                
  Lines        364706     441402     +76696     
================================================
+ Hits         272442     334034     +61592     
- Misses        72471      86791     +14320     
- Partials      19793      20577       +784     

Flag	Coverage Δ
integration	51.2444% <66.6666%> (?)
unit	71.9404% <100.0000%> (-1.6228%)	⬇️

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	63.1580% <ø> (+15.5038%)	⬆️

[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

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]

In response to a cherrypick label: new pull request created to branch release-7.5: #56259.