{"id":"dynamodb-streams-four-iterator-types","text":"`GetShardIterator` supports four iterator types: `TRIM_HORIZON` (oldest untrimmed), `LATEST` (only new), `AT_SEQUENCE_NUMBER` (exact), and `AFTER_SEQUENCE_NUMBER` (immediately after).","truth_value":"IN","source":"entries/2026/03/11/amazondynamodb-latest-APIReference-API_streams_GetShardIteratorhtml.md","source_url":"","source_hash":"1e8b91a948162bc0","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"dynamodb-streams-four-iterator-types","truth_value":"IN","reason":"premise"}]}}