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This is an automated cherry-pick of #20768

…lues for system variables"

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@ti-chi-bot ti-chi-bot added lgtm needs-1-more-lgtm Indicates a PR needs 1 more LGTM. labels Apr 17, 2025
@ti-chi-bot ti-chi-bot added ONCALL Relates to documentation oncall. size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. type/bugfix This PR fixes a bug. type/cherry-pick-for-release-7.5 This PR is cherry-picked to release-7.5 from a source PR. labels Apr 17, 2025
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Hello @ti-chi-bot, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

Summary of Changes

This pull request updates the release notes for TiDB v6.0.0-dmr.md. Specifically, it clarifies the behavior of TiDB regarding incorrect values for system variables across different versions. The change modifies the description to indicate that TiDB allowed incorrect values for some noop system variables in v5.4 and earlier, but disallows this behavior starting from v6.0.0.

Highlights

  • Release Notes Update: The release notes for v6.0.0 are updated to clarify the behavior change regarding incorrect system variable values.
  • System Variable Validation: TiDB now enforces correct values for system variables starting from v6.0.0, while earlier versions (v5.4 and prior) permitted incorrect values for some noop system variables.

Changelog

  • releases/release-6.0.0-dmr.md
    • Modified the description of the system variable validation behavior to include versions prior to v5.4.
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Code Review

The pull request updates the description of "setting incorrect values for system variables" in the release notes for TiDB v6.0.0. The change clarifies the versions affected by this behavior. The pull request includes changes to the releases/release-6.0.0-dmr.md file.

Merge Readiness

The pull request consists of a small documentation update. The change is straightforward and seems correct. The pull request is ready to be merged.

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Oreoxmt commented Apr 17, 2025

/approve

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ti-chi-bot bot commented Apr 17, 2025

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Oreoxmt

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@ti-chi-bot ti-chi-bot bot added the approved label Apr 17, 2025
@ti-chi-bot ti-chi-bot bot merged commit ac3cf8e into pingcap:release-7.5 Apr 17, 2025
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approved lgtm needs-1-more-lgtm Indicates a PR needs 1 more LGTM. ONCALL Relates to documentation oncall. size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. type/bugfix This PR fixes a bug. type/cherry-pick-for-release-7.5 This PR is cherry-picked to release-7.5 from a source PR.
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