planner: introduce a new empirical rule into the Skyline pruning

[qw4990]

What problem does this PR solve?

Issue Number: close #45132

Problem Summary: planner: introduce a new empirical rule into the Skyline pruning

What is changed and how it works?

Add a new empirical rule to the Skyline pruning: If x's range row count is significantly lower than y's, for example, 1000 times, we think x is better than y and prune y from the candidate.

Use fixcontrol to control this behavior.

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

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 @qw4990. Thanks for your PR.

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[codecov]

Codecov Report

Merging #46559 (0e474d3) into master (d36478f) will decrease coverage by 0.6857%.
Report is 6 commits behind head on master.
The diff coverage is 80.0000%.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #46559        +/-   ##
================================================
- Coverage   73.3392%   72.6536%   -0.6857%     
================================================
  Files          1309       1330        +21     
  Lines        394535     400773      +6238     
================================================
+ Hits         289349     291176      +1827     
- Misses        86772      91119      +4347     
- Partials      18414      18478        +64     

Flag	Coverage Δ
integration	25.3961% <60.0000%> (?)
unit	73.3411% <80.0000%> (+0.0019%)	⬆️

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

Components	Coverage Δ
dumpling	54.0444% <ø> (ø)
parser	84.9772% <ø> (ø)
br	48.0054% <ø> (-4.3453%)	⬇️

[qw4990]

/test unit-test

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[hawkingrei]

/ok-to-test

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@qw4990: 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
tiprow_fast_test	0e474d3	link	true	/test tiprow_fast_test

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[qw4990]

/test unit-test

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@qw4990: The specified target(s) for /test were not found.
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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hawkingrei, time-and-fate

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-08-31 10:24:54.342346186 +0000 UTC m=+2009058.891362173: ☑️ agreed by hawkingrei.
• 2023-09-01 04:15:03.74173876 +0000 UTC m=+2073268.290754747: ☑️ agreed by time-and-fate.

[qw4990]

/test unit-test

[tiprow]

@qw4990: The specified target(s) for /test were not found.
The following commands are available to trigger required jobs:

• /test tiprow_fast_test

Use /test all to run all jobs.

In response to this:

/test unit-test

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/test-infra repository.