[joechenrh]

What is changed, added, or deleted? (Required)

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

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For details, see tips for choosing the affected versions (in Chinese).

• master (the latest development version)
• v9.0 (TiDB 9.0 versions)
• v8.5 (TiDB 8.5 versions)
• v8.1 (TiDB 8.1 versions)
• v7.5 (TiDB 7.5 versions)
• v7.1 (TiDB 7.1 versions)
• v6.5 (TiDB 6.5 versions)

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

• Related code change PR links (if applicable):
  • dumpling: support column filters for table exports tidb#70196 dumpling: support column filters for table exports
  • dumpling: support projected schemas for column filters tidb#70506 dumpling: support projected schemas for column filters
  • Issue: dumpling: support column filtering for table data exports tidb#70255
• This PR is translated from: N/A
• Other reference link(s): N/A

AI agent involvement

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

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• Delete files
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Summary by CodeRabbit

• 文档
  • 新增列过滤选项说明，介绍如何通过内联规则或 TOML 文件筛选导出的列，以及规则优先级和适用限制。

[joechenrh]

/label nextgen

[ti-chi-bot]

@joechenrh: The label(s) nextgen cannot be applied. These labels are supported: 2024-tidb-docs-dash, contribution, first-time-contributor, for-future-release, good first issue, hacktoberfest-accepted, Hacktoberfest, help wanted, needs-cherry-pick-master, needs-cherry-pick-release-7.5, needs-cherry-pick-release-8.1, needs-cherry-pick-release-8.5, needs-cherry-pick-release-9.0-beta.2, needs-cherry-pick-release-cloud, needs-cherry-pick-release-8.2, needs-cherry-pick-release-8.3, needs-cherry-pick-release-8.4, question, requires-followup, requires-version-specific-changes, special-week, website.

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In response to this:

/label nextgen

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[coderabbitai]

Navigate logical layers of code changes, visualize relationships, and explore their blast radius.

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository: pingcap/docs-cn/.coderabbit.yaml

Review profile: ASSERTIVE

Plan: Advanced

Run ID: 85a1bac4-4586-4483-afc2-0280f9934a06

📥 Commits

Reviewing files that changed from the base of the PR and between 0f9f2f8 and c3015fa.

📒 Files selected for processing (1)

• dumpling-overview.md

Included review availability: Your plan provides up to 4 included reviews per hour; 3 remain after this review.

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📝 Walkthrough

Walkthrough

新增 Dumpling 列过滤选项的文档说明，涵盖规则配置、导出行为限制及选项冲突，并更新主要选项表。

Changes

列过滤文档

Layer / File(s)	Summary
列过滤规则与选项说明 dumpling-overview.md	新增 --column-filter 和 --column-filter-file 的配置说明，描述列过滤对数据文件和表结构文件的影响、规则合并方式、相关限制及选项冲突，并在主要选项表中列出这两个选项。

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~8 minutes

Change: Other

Suggested reviewers: qiancai

Merge Risk: ⚪ Minimal · up to c3015

The documentation change has no verified issue requiring resolution before merge.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	描述包含版本选择、相关 PR、问题链接和 AI 参与信息，但必填的“改变、添加或删除了什么”部分为空。该部分未说明新增中文文档及涉及的两个选项。	在“### What is changed, added, or deleted? (Required)”下补充变更内容，例如说明在 dumpling-overview.md 中新增 --column-filter 和 --column-filter-file 的使用文档，并补充过滤规则、配置方式和限制。

✅ Passed checks (4 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	标题准确说明了本次变更：为 Dumpling 添加 column-filter 文档。标题简洁，并且与主要改动一致。

• Fix all pre-merge checks with AI

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create a new PR

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