{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9720961","patent":{"patent_number":"US-9720961","title":"Algebraic data types for database query languages","assignee":null,"inventors":[],"filing_date":"2016-09-30T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F","G06F"],"num_claims":24,"abstract":"Methods, systems, and apparatus, including computer programs encoded on computer storage media, for implementing algebraic data types in database query languages. One of the methods includes receiving an expression in a database query language, the expression having a programming language construct representing an algebraic data type, wherein the expression specifies two or more alternative subtypes. Respective domain relations are generated using definitions of each of the alternative subtypes within the expression. Unique domain identifiers are assigned among domain tuples belonging to each alternative subtype. A union relation is generated for the algebraic data type. Unique union identifiers are assigned for union tuples belonging to the union relation. Respective injector relations are generated for each of the alternative subtypes."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Algebraic data types for database query languages","description":"Methods, systems, and apparatus, including computer programs encoded on computer storage media, for implementing algebraic data types in database query languages. One of the methods includes receiving","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9720961","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-9720961","citation_suggestion":"Patentable. \"Algebraic data types for database query languages\" (US-9720961). https://patentable.app/patents/US-9720961","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9720961","json":"https://patentable.app/api/llm-context/US-9720961","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:41:05.668Z"}