planner: Move some estimation functions from the physical-optimization package into cardinality package

[qw4990]

What problem does this PR solve?

Issue Number: ref #46358

Problem Summary: Move the Selectivity function from the stats package into cardinality package

What is changed and how it works?

No logical change, just some code movement.

Follow with #46359

Move the Selectivity function from the stats package.

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 #46458 (6e7d5b1) into master (c7d5507) will decrease coverage by 47.7831%.
The diff coverage is 27.2727%.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #46458         +/-   ##
=================================================
- Coverage   73.4238%   25.6407%   -47.7831%     
=================================================
  Files          1299       1158        -141     
  Lines        394037     348890      -45147     
=================================================
- Hits         289317      89458     -199859     
- Misses        86339     248691     +162352     
+ Partials      18381      10741       -7640     

Flag	Coverage Δ
integration	25.6407% <27.2727%> (?)
unit	?

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

Components	Coverage Δ
dumpling	∅ <ø> (∅)
parser	∅ <ø> (∅)
br	0.1118% <ø> (-52.2461%)	⬇️

[qw4990]

/retest-required

[tiprow]

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[ti-chi-bot]

@qw4990: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
idc-jenkins-ci-tidb/mysql-test	6e7d5b1	link	true	/test mysql-test
idc-jenkins-ci-tidb/unit-test	6e7d5b1	link	true	/test unit-test

Full PR test history. Your PR dashboard.

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-08-29 02:38:37.225703466 +0000 UTC m=+1808281.774719453: ☑️ agreed by time-and-fate.