{"id":"lsm-flat-compaction-always-bottommost","text":"`LSMTree.compact()` in `lsm.py` merges all SSTables into one without level hierarchy, making every compaction implicitly a bottommost-level operation where tombstone removal is always safe","truth_value":"IN","source":"entries/2026/05/29/topic-rocksdb-bottommost-compaction.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"lsm-flat-compaction-always-bottommost","truth_value":"IN","reason":"premise"}]}}