planner: Fix the issue that may generate many plandigests when the inner table is clustered (#47952)

[ti-chi-bot]

This is an automated cherry-pick of #47952

What problem does this PR solve?

Issue Number: close #47634
Problem Summary:
After pr:#38259 queries with the same plan have different plan_digest in information_schema.statement_summary

What is changed and how it works?

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

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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• OWNERS [hawkingrei,winoros]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-02-18 08:21:46.671255041 +0000 UTC m=+172595.418878152: ☑️ agreed by winoros.
• 2024-02-18 08:29:25.609407029 +0000 UTC m=+173054.357030139: ☑️ agreed by hawkingrei.

[winoros]

/retest

[winoros]

/retest

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-7.5@f2f5e1a). Click here to learn what that means.
The diff coverage is 100.0000%.

Additional details and impacted files

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Flag	Coverage Δ
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