{"id":"dynamodb-gsi-backfill-no-read-charges","text":"During GSI backfill on an existing table, base table reads use internal system capacity and do not incur read charges.","truth_value":"IN","source":"entries/2026/03/11/amazondynamodb-latest-developerguide-GSIOnlineOpshtml.md","source_url":"","source_hash":"08dc0cc4522ceea7","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"dynamodb-gsi-backfill-no-read-charges","truth_value":"IN","reason":"premise"}]}}