i18n(ja): fix translation defects in the v7.0.0 to v7.4.0 release notes

[yahonda]

What is changed, added or deleted? (Required)

Fixes translation defects in the Japanese release notes for v7.0.0 to v7.4.0 (11 files). This is the first half of round 4 of the releases/ review; v7.5.x and v7.6.0 are in a separate PR. I checked each item against its EN bullet (release-8.5) and against resources/terms-en-ja.md.

Meaning fixes

• Reversed meanings:
  • 7.0.0 L50: FastScan applies to tables with only INSERT operations, not only DELETE.
  • 7.1.0 L46: tidb_prefer_broadcast_join_by_exchange_data_size is disabled by default, which keeps the old behavior.
  • 7.1.0 L353: the precheck change avoids blocking imports.
  • 7.1.3 L104: the TiKV OOM cause.
• Swapped or scrambled identifiers:
  • 7.0.0: DISTINCT/SELECT.
  • 7.1.2: fsp of DATETIME/TIMESTAMP/TIME.
  • 7.2.0: :=/UPDATE and pd.retry-interval.
  • 7.4.0: the IMPORT INTO compression formats and SET_VAR().
• Broken contributor handles: 「Jmポテト」 (7.1.1) and 「D3ハンター」 (7.4.0) → @[JmPotato] and @[D3Hunter].
• Other meaning fixes:
  • MPP was expanded as 最大パフォーマンス.
  • Late Materialization was rendered as 遅延発生.
  • "Will be deprecated" was rendered as 廃止 (7.3.0, 7.4.0).
  • "Expensive transactions" were rendered as 高額 (monetary).
  • "Store messages" was read as the verb "save".
  • Missing "in some cases", "still", and "PD".

Glossary and literals

• Capitalized Learner and Leader stay in English (lowercase "learner" is ラーナー), and Stale Read is ステイル読み取り, as terms-en-ja.md specifies.
• Grafana panel names, a UI page name (Calibrate by Workload), safe-ts, Resolved TS, <kbd>Control+C</kbd>, and @[hi-rustin] (as in EN) stay as in EN.
• 印刷 → 出力; 特徴 → 機能 (table header); タイプを変更 → 変更の種類 (table header); 領域 → リージョン.

Markdown

• Nine table rows used backtick code spans with unescaped | (rocksdb.[defaultcf|writecf|lockcf]...), which split the table cells. They now use the EN form <code>rocksdb.\[defaultcf\|writecf\|lockcf\]...</code>.
• Restores particles dropped after links or backticks; removes stray particles, a stray "A", >, a duplicated word, and a duplicated "Otherwise" clause.

Not changed: lines that #24151 also changes, the Data Migration component name (a separate pending term decision), and the order and spacing of handles.

Which TiDB version(s) do your changes apply to? (Required)

Tips for choosing the affected version(s):

By default, CHOOSE MASTER ONLY so your changes will be applied to the next TiDB major or minor releases. If your PR involves a product feature behavior change or a compatibility change, CHOOSE THE AFFECTED RELEASE BRANCH(ES) AND MASTER.

For details, see tips for choosing the affected versions.

• i18n-ja-release-8.5 (TiDB Japanese documentation for TiDB 8.5 versions)

What is the related PR or file link(s)?

• This PR is translated from:
• Other reference link(s): i18n(ja): fix translation defects in the v8.5.x release notes #24143, i18n(ja): fix translation defects in the v8.1.0, v8.1.2, and v8.2.0 release notes #24148, i18n(ja): fix translation defects in the v8.0.0, v8.3.0, and v8.4.0 release notes #24152

AI agent involvement

• The changes in this PR were primarily made by an AI agent on behalf of the PR author.

Do your changes match any of the following descriptions?

• Delete files
• Change aliases
• Need modification after applied to another branch
• Might cause conflicts after applied to another branch

🤖 Generated with Claude Code

Summary by CodeRabbit

• Documentation
  • Updated the Japanese release notes for TiDB 7.0.0–7.4.0 with wording, grammar, and formatting corrections across feature descriptions, compatibility information, configuration references, improvements, and bug fixes.
  • Clarified documented details including FastScan conditions, MPP join defaults, stale-read behavior, and supported IMPORT INTO compression formats.
  • Corrected or clarified entries covering product fixes and tool capabilities, and retained the notice that mydumper and TiKV-importer are planned for deprecation in version 7.5.0.
  • No product implementation changes are included.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please assign jackysp for approval. For more information see the Code Review Process.
Please ensure that each of them provides their approval before proceeding.

The full list of commands accepted by this bot can be found here.

Details

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Repository: pingcap/docs/.coderabbit.yaml
• Review profile: ASSERTIVE
• Plan: Advanced
• Run ID: 14a93830-112c-48f6-a085-adc5035ef1e9

📥 Commits

Reviewing files that changed from the base of the PR and between 304488f and 17d641c.

📒 Files selected for processing (5)

• releases/release-7.0.0.md
• releases/release-7.1.0.md
• releases/release-7.1.3.md
• releases/release-7.1.5.md
• releases/release-7.4.0.md

Included review availability: This review used your included allowance. Your plan provides up to 4 included reviews per hour; 2 remain after this review.

---

📝 Walkthrough

Walkthrough

Japanese TiDB release notes for versions 7.0.0 through 7.4.0 were revised. The edits clarify feature, compatibility, and configuration descriptions and update improvement and bug-fix entries. No product implementation changed.

Changes

Japanese release note updates

Layer / File(s)	Summary
Release note descriptions and entries releases/release-7.0.0.md–releases/release-7.4.0.md	Feature, compatibility, and configuration descriptions were clarified or corrected. Improvement and bug-fix entries were edited across the release notes.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~12 minutes

Change: Other

Merge Risk: ⚪ Minimal · up to 17d64

This PR revises Japanese release notes only. The previously noted terminology and supported-value descriptions are corrected, and no actionable merge blocker remains.

Architecture Summary

Architecture risk: 🔵 Low · up to 17d64

The change affects 1 system.

Changed systems: releases

Architecture concerns
No architecture-level concerns identified.

Review details

Systems and components

• observed — releases (service) was modified; 11 changed files map to changed impact.

Before / after behavior

• observed — Modified behavior in releases/release-7.1.1.md: Clarifies that the retry-reader optimization applies to stale reads, replacing the broader “old reads” wording.
• observed — Modified behavior in releases/release-7.1.1.md: Lists Kafka OAUTHBEARER authentication support under TiCDC and clarifies that TiDB Lightning’s retry improvement concerns the PD ClientTSOStreamClosed error during checksum.
• observed — Modified behavior in releases/release-7.1.1.md: Updates wording and attribution for existing TiDB bug-fix entries and clarifies the affected FLASHBACK, negative-value CAST, Join Reorder, LEADING alias, and prepared ANALYZE TABLE cases. The other entries in this span retain their reported fixes.
• observed — Modified behavior in releases/release-7.1.1.md: Clarifies that SQL placement-rule location-labels may not be scheduled as expected.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly identifies the Japanese translation fixes and the affected release-note range, v7.0.0 to v7.4.0.
Description check	✅ Passed	The description explains the changes, affected documentation version, related references, AI involvement, and scope exclusions. It provides detailed examples of translation and Markdown fixes.

✨ Finishing Touches 💡 1

🛠️ Fix failing CI checks 💡

• Commit to this branch
• Create a new PR

🧪 Generate unit tests (beta)

• Create a new PR

• Autopilot · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[coderabbitai]

Actionable comments posted: 2

---

ℹ️ Review info

⚙️ Run configuration

• Configuration used: Repository: pingcap/docs/.coderabbit.yaml
• Review profile: ASSERTIVE
• Plan: Advanced
• Run ID: 28f4f223-828a-44f1-a85e-5ce661e9fa5b

📥 Commits

Reviewing files that changed from the base of the PR and between a4dfec7 and 304488f.

📒 Files selected for processing (11)

• releases/release-7.0.0.md
• releases/release-7.1.0.md
• releases/release-7.1.1.md
• releases/release-7.1.2.md
• releases/release-7.1.3.md
• releases/release-7.1.4.md
• releases/release-7.1.5.md
• releases/release-7.1.6.md
• releases/release-7.2.0.md
• releases/release-7.3.0.md
• releases/release-7.4.0.md

Included review availability: This review used your included allowance. Your plan provides up to 4 included reviews per hour; 0 remain after this review.

[qiancai]

LGTM

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2026-10-08 07:52:43.321843184 +0000 UTC m=+285573.069074033: ☑️ agreed by qiancai.