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Create a new database migration file for the OWID MySQL database. Use when the user needs to create a database schema change or migration.
默认使用会先检查来源的 Prompt；你也可以切换为直接命令，或下载本地副本。
决定是否安装前，请先阅读 SKILL.md，以及 SkillsMP 当前展示的配套文件。
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
直接命令不会经过审查 Prompt；运行前请先检查来源。
npx skills add https://github.com/owid/owid-grapher --skill create-migration命令会保持在同一行。复制前请横向滚动并检查完整内容。
想先保存到本地？可下载 SkillsMP 当前能够提供的文件。
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| name | create-migration |
| description | Create a new database migration file for the OWID MySQL database. Use when the user needs to create a database schema change or migration. |
| metadata | {"internal":true} |
Create a new database migration file for the OWID MySQL 8 database.
yarn createDbMigration db/migration/<NewMigrationName> where <NewMigrationName> is a descriptive name for the migrationdb/migration/ directory to find the actual path of the new fileChoose a descriptive name for the migration that clearly indicates what schema change is being made (e.g., AddUserEmailIndex, CreateAuditLogTable, RemoveDeprecatedColumns).
Read db/readme.md before populating the file. In particular: use past migrations in db/migration/ as reference, and always write a down migration in case the change needs to be reverted.
Follow the checklist in db/migration/CLAUDE.md: recreate any views referencing modified columns, update the DB type definitions in packages/@ourworldindata/types/src/dbTypes/, update the table docs in db/docs/, and tell the user the owid/etl and owid/analytics repositories may need adjusting.