{"id":"dynamodb-composite-sort-key-delimiter-hierarchy","text":"DynamoDB composite sort keys use a delimiter-separated structure (e.g., `[country]#[region]#[state]#[county]#[city]#[neighborhood]`) to define hierarchical relationships queryable at any level via `begins_with`.","truth_value":"IN","source":"entries/2026/03/11/amazondynamodb-latest-developerguide-bp-sort-keyshtml.md","source_url":"","source_hash":"9f98c10286b5428b","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"dynamodb-composite-sort-key-delimiter-hierarchy","truth_value":"IN","reason":"premise"}]}}