完成真实 PostgreSQL/Flyway 空库、升级与回退演练 #16
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Question
在与生产版本匹配的 PostgreSQL 空库及升级库上,Education 模块 Flyway migration 的执行顺序、baseline 前提、验证查询、锁影响和应用回退边界是什么?如何证明应用版本回退或功能关闭不会删除练习、报告、幂等记录、错题、收藏和原生目录历史?
Current evidence
4009,V4010是首个受管 migration。V4020__create_native_catalog.sql。Resolution required
记录 PostgreSQL/Flyway 版本、应用与 migration revision、空库和升级库执行日志、
flyway_schema_history、约束/索引验证、耗时与锁观察、应用回退步骤、历史数据行数与可读性证据。不得记录数据库密码;不得把 destructive rollback SQL 作为常规应用回退。完成真实 MySQL 空库迁移升级与回滚演练to 完成真实 PostgreSQL/Flyway 空库、升级与回退演练