{"id":"wal-batch-always-fsyncs","text":"`append_batch()` always force-fsyncs regardless of the configured sync mode, because batch atomicity requires the COMMIT marker to be durable before returning.","truth_value":"IN","source":"entries/2026/05/28/write-ahead-log-wal.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"wal-batch-always-fsyncs","truth_value":"IN","reason":"premise"}]}}