{"id":"wal-append-mode-no-overwrite","text":"`_open_latest` opens WAL files in `\"ab\"` (append-binary) mode, making it impossible for post-crash writes to overwrite pre-crash records; this is the bridge between recovery and forward progress","truth_value":"IN","source":"entries/2026/05/29/topic-wal-crash-recovery-semantics.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"wal-append-mode-no-overwrite","truth_value":"IN","reason":"premise"}]}}