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Fix wording to reflect poor performance of initial query before optimization (#20840) #21268

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This is an automated cherry-pick of #20840

What is changed, added or deleted? (Required)

Fix wording in the explain walkthrough, the current working seems to imply that the initial performance is good (which it is not). The rest of the walkthrough is to improve the performance, so the changed wording seems more correct.

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@ti-chi-bot ti-chi-bot added contribution This PR is from a community contributor. first-time-contributor Indicates that the PR was contributed by an external member and is a first-time contributor. lgtm ok-to-test Indicates a PR is ready to be tested. size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. type/cherry-pick-for-release-8.1 This PR is cherry-picked to release-8.1 from a source PR. labels Jun 27, 2025
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Summary of Changes

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!

This pull request clarifies the wording in a documentation walkthrough to accurately reflect the initial performance state of a query, ensuring the narrative correctly sets the stage for subsequent performance optimization discussions.

Highlights

  • Documentation Clarification: Corrected a sentence in the explain-walkthrough.md file to accurately state that an initial query's performance of 1.03 seconds is 'not ideal,' rather than 'ideal.' This change ensures the documentation correctly sets the context for subsequent performance optimization discussions.
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Code Review

This pull request fixes a sentence in the EXPLAIN walkthrough to indicate that the initial query performance is poor, not ideal. I've suggested a minor wording improvement to make the statement more direct and clear, in line with the documentation style guide.

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qiancai commented Jun 27, 2025

/approve

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ti-chi-bot bot commented Jun 27, 2025

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: qiancai

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@ti-chi-bot ti-chi-bot bot added the approved label Jun 27, 2025
@ti-chi-bot ti-chi-bot bot merged commit e1f263a into pingcap:release-8.1 Jun 27, 2025
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3 participants