{"id":"dynamodb-mrsc-witnesses-cheaper-than-replicas","text":"MRSC (multi-region strong consistency) global tables support witnesses as a cheaper alternative to full replicas — witnesses maintain replicated change data but do not support read/write operations.","truth_value":"IN","source":"entries/2026/03/11/amazondynamodb-latest-APIReference-API_UpdateTablehtml.md","source_url":"","source_hash":"af403068d9b58313","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"dynamodb-mrsc-witnesses-cheaper-than-replicas","truth_value":"IN","reason":"premise"}]}}