{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8533179","patent":{"patent_number":"US-8533179","title":"Avoiding three-valued logic in predicates on dictionary-encoded data","assignee":null,"inventors":[],"filing_date":"2012-07-09T00:00:00.000Z","publication_date":"2013-09-10T00:00:00.000Z","cpc_codes":["G06F"],"num_claims":10,"abstract":"According to one embodiment of the present invention, a method for dictionary encoding data without using three-valued logic is provided. According to one embodiment of the invention, a method includes encoding data in a database table using a dictionary, wherein the data includes values representing NULLs. A query having a predicate is received and the predicate is evaluated on the encoded data, whereby the predicate is evaluated on both the encoded data and on the encoded NULLs."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Avoiding three-valued logic in predicates on dictionary-encoded data","description":"According to one embodiment of the present invention, a method for dictionary encoding data without using three-valued logic is provided. According to one embodiment of the invention, a method include","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8533179","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-8533179","citation_suggestion":"Patentable. \"Avoiding three-valued logic in predicates on dictionary-encoded data\" (US-8533179). https://patentable.app/patents/US-8533179","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8533179","json":"https://patentable.app/api/llm-context/US-8533179","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:07:31.246Z"}