Português(PT) SQLAlchemy 1.x code on 2.x: no error, no row

SQLAlchemy 2.0 迁移导致 1.x 用户数据静默丢失

作者 PulseAugur 编辑部 · [1 个来源] · 2026-10-19 17:09

SQLAlchemy 2.0 移除了库级别的自动提交功能，这一更改可能导致从 1.x 迁移的用户数据静默丢失。虽然 1.x 代码在 SQLAlchemy 2.x 上运行时可能不会报错，但在连接关闭时，插入操作可能会被回滚而不是提交。SQLAlchemy 2.x 的推荐方法是使用 `engine.begin()` 进行自动提交/回滚，或者在使用 `engine.connect()` 时手动调用 `conn.commit()`。 AI

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dev.to — MCP tag TIER_1 Português(PT) · ProvenPin · 2026-10-19 17:09

SQLAlchemy 1.x 代码在 2.x 上运行：无错误，无结果

<p>SQLAlchemy 2.0 removed library level autocommit. The <a href="https://docs.sqlalchemy.org/en/20/changelog/migration_20.html#library-level-but-not-driver-level-autocommit-removed-from-both-core-and-orm" rel="noopener noreferrer">migration guide</a> says it plainly: in 1.x, <cod…

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SQLAlchemy 1.x 代码在 2.x 上运行：无错误，无结果

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