planner: add simple serializing scheduler

[AilinKid]

What problem does this PR solve?

Issue Number: ref #51664

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 @AilinKid. Thanks for your PR.

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[codecov]

Codecov Report

Merging #51866 (757aa8f) into master (af76c2f) will decrease coverage by 15.8686%.
Report is 75 commits behind head on master.
The diff coverage is 44.8979%.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #51866         +/-   ##
=================================================
- Coverage   70.7202%   54.8517%   -15.8686%     
=================================================
  Files          1477       1597        +120     
  Lines        438443     622500     +184057     
=================================================
+ Hits         310068     341452      +31384     
- Misses       108950     257387     +148437     
- Partials      19425      23661       +4236     

Flag	Coverage Δ
integration	36.5433% <0.0000%> (?)
unit	70.4113% <44.8979%> (-0.1073%)	⬇️

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

Components	Coverage Δ
dumpling	53.9957% <ø> (ø)
parser	∅ <ø> (∅)
br	50.3747% <ø> (+4.4999%)	⬆️

[winoros]

Do we need this method to export the stack? Just a method popTask is enough?

[AilinKid]

not enough, TaskSchedulerContext is just a wrapper of Stack, the scheduler should be responsible for how tasks are taken out and how it runs (operate on stack elements)

[winoros]

You should use ref #xxx in the pr description instead of close #xxx(

[winoros]

I think we don't need to export the TaskStack to other packages now that there's a TaskSchedulerContext to be exported?

[AilinKid]

I think we don't need to export the TaskStack to other packages now that there's a TaskSchedulerContext to be exported?

make sense, changed, currently, we only exported the Stack interface.

[AilinKid]

/test unit-test

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[AilinKid]

/ok-to-test

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hawkingrei, winoros

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-03-25 09:51:23.821663931 +0000 UTC m=+1888710.843910319: ☑️ agreed by winoros.
• 2024-03-25 10:12:36.929123675 +0000 UTC m=+1889983.951370057: ☑️ agreed by hawkingrei.