{"id":"dynamodb-gsi-multi-attribute-keys-max-8","text":"GSI partition keys can be composed from up to 4 attributes and sort keys from up to 4 attributes (max 8 total), eliminating the need for manually concatenated synthetic keys.","truth_value":"IN","source":"entries/2026/03/11/amazondynamodb-latest-developerguide-GSIhtml.md","source_url":"","source_hash":"e5a89fef6810208a","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"dynamodb-gsi-multi-attribute-keys-max-8","truth_value":"IN","reason":"premise"}]}}