{"id":"gc-no-active-keeps-one","text":"When no transactions are active, `garbage_collect()` retains at most one version per key — the latest committed non-deleted version — and drops everything else including fully-deleted keys.","truth_value":"IN","source":"entries/2026/05/29/snapshot-isolation-mvcc_database-garbage_collect.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"gc-no-active-keeps-one","truth_value":"IN","reason":"premise"}]}}