{"id":"cdc-insert-update-distinction","text":"Insert vs. update is determined solely by whether `CDCStream.emit()` receives a non-None `old_value`; the WAL itself only records `PUT` operations for both cases","truth_value":"IN","source":"entries/2026/05/29/unbundled-database-unbundled_database.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"cdc-insert-update-distinction","truth_value":"IN","reason":"premise"}]}}