meta/autoid: show auto_inc allocator only when cache = 1

[tangenta]

What problem does this PR solve?

Issue Number: close #55615

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 @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

All modified and coverable lines are covered by tests ✅

Project coverage is 74.7318%. Comparing base (14e99ea) to head (f5ecfbf).
Report is 41 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #55616        +/-   ##
================================================
+ Coverage   72.8115%   74.7318%   +1.9203%     
================================================
  Files          1676       1722        +46     
  Lines        463414     479822     +16408     
================================================
+ Hits         337419     358580     +21161     
+ Misses       105180      98884      -6296     
- Partials      20815      22358      +1543     

Flag	Coverage Δ
integration	49.2299% <100.0000%> (?)
unit	72.1834% <100.0000%> (-0.0202%)	⬇️

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

Components	Coverage Δ
dumpling	52.7673% <ø> (ø)
parser	∅ <ø> (∅)
br	60.6690% <ø> (+15.4131%)	⬆️

---- 🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests
• JS Bundle Analysis - Avoid shipping oversized bundles

[lance6716]

remember to leave some good-first-issue for new developers

[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

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[zimulala]

/retest-required

[tiprow]

@zimulala: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/retest-required

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[zimulala]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lance6716, zimulala

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Needs approval from an approver in each of these files:

• OWNERS [lance6716,zimulala]
• pkg/ddl/OWNERS [lance6716]
• pkg/meta/OWNERS [lance6716]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-08-26 11:02:59.614634031 +0000 UTC m=+781774.749084152: ☑️ agreed by lance6716.
• 2024-10-31 08:58:42.727721588 +0000 UTC m=+513035.566877134: ☑️ agreed by zimulala.

[tiprow]

@tangenta: 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
fast_test_tiprow	b92a461	link	true	/test fast_test_tiprow
tidb_parser_test	b92a461	link	true	/test tidb_parser_test

Full PR test history. Your PR dashboard.

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-sigs/prow repository. I understand the commands that are listed here.

[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-sigs/prow repository.