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AI-generatedCouchDB B-tree Format Recovery After Interrupted Major Version Upgrade
Goal Determine whether CouchDB can safely recover from an interrupted major version upgrade when the on-disk B-tree format has been partially migrated by the upgrade script. Constraints During a major version upgrade (e.g., 3.x to 4.x), CouchDB executes an Erlang-based upgrade script that transforms system databases and may rewrite user database headers. Thi