{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9798772","patent":{"patent_number":"US-9798772","title":"Using persistent data samples and query-time statistics for query optimization","assignee":null,"inventors":[],"filing_date":"2013-05-13T00:00:00.000Z","publication_date":"2017-10-24T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F"],"num_claims":23,"abstract":"Techniques for storing and querying graph data in a key-value store are provided. A graph statement (e.g., an RDF graph statement) includes a plurality of values, at least two of which correspond to nodes in a graph. A key is generated based on the graph statement. The key may be generated based on concatenating hash values that are generated based on the plurality of values. The key-value store stores the key. The value that corresponds to the key may be a null or empty value. In response to a graph query (e.g., in SPARQL) that includes one or more query patterns, each of which includes one or more values, a key is generated based on the one or more values and sent to the key-value store, which returns one or more other keys, each of which is a superset of the generated key."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Using persistent data samples and query-time statistics for query optimization","description":"Techniques for storing and querying graph data in a key-value store are provided. A graph statement (e.g., an RDF graph statement) includes a plurality of values, at least two of which correspond to n","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9798772","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9798772","citation_suggestion":"Patentable. \"Using persistent data samples and query-time statistics for query optimization\" (US-9798772). https://patentable.app/patents/US-9798772","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9798772","json":"https://patentable.app/api/llm-context/US-9798772","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T03:48:36.487Z"}