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[OPIK-6781] [DOCS] Add migration rollback rule: empty for in-place column changes (#6966)
发布于
2026-06-04 09:05:38 +00:00 Codifies the convention surfaced in #6962/#6965: additive/structural
changes (new table/column/index) get a real rollback, but in-place changes
to an existing column (enum modify/rename, type/precision changes) must use
--rollback empty. Reverting in-place changes reintroduces the fixed bug and
is lossy once new data is written under the new definition.Updated all three migration guidance files: the backend rule and both skill
copies (.claude + .agents).Co-authored-by: Claude Opus 4.8 (1M context) noreply@anthropic.com
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