executor: display pre_split_regions for auto_random tables in SHOW CREATE

[tangenta]

What problem does this PR solve?

Issue Number: close #49839

What changed and how does it work?

As the title said.

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 @tangenta. Thanks for your PR.

PRs from untrusted users cannot be marked as trusted with /ok-to-test in this repo meaning untrusted PR authors can never trigger tests themselves. Collaborators can still trigger tests on the PR using /test all.

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[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 71.2070%. Comparing base (8e0a770) to head (df52b41).
Report is 3196 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #49781        +/-   ##
================================================
+ Coverage   70.9388%   71.2070%   +0.2681%     
================================================
  Files          1368       1430        +62     
  Lines        396702     420721     +24019     
================================================
+ Hits         281416     299583     +18167     
- Misses        95593     102228      +6635     
+ Partials      19693      18910       -783     

Flag	Coverage Δ
integration	43.9354% <75.0000%> (?)
unit	70.9388% <ø> (ø)

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

Components	Coverage Δ
dumpling	53.9663% <ø> (ø)
parser	∅ <ø> (∅)
br	46.5939% <ø> (-6.3094%)	⬇️

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Defined2014, zimulala

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• OWNERS [Defined2014,zimulala]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-12-27 08:16:52.53136053 +0000 UTC m=+1640103.568587457: ☑️ agreed by zimulala.
• 2023-12-27 08:21:49.82488938 +0000 UTC m=+1640400.862116300: ☑️ agreed by Defined2014.

[tangenta]

/retest

[tiprow]

@tangenta: 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/test-infra repository.

[hawkingrei]

/retest

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #59843.
But this PR has conflicts, please resolve them!