{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10528580","patent":{"patent_number":"US-10528580","title":"Method and mechanism for efficient re-distribution of in-memory columnar units in a clustered RDBMS on topology change","assignee":null,"inventors":[],"filing_date":"2016-01-27T00:00:00.000Z","publication_date":"2020-01-07T00:00:00.000Z","cpc_codes":["H04L","G06F","H04L","H04L"],"num_claims":14,"abstract":"Techniques are described herein for executing queries on distinct portions of a database object that has been separate into chunks and distributed across the volatile memories of a plurality of nodes in a clustered database system. The techniques involve redistributing the in-memory database object portions on changes to the clustered database system. Each node may maintain a mapping indicating which nodes in the clustered database system store which chunks, and timestamps indicating when each mapping entry was created or updated. A query coordinator may use the timestamps to select a database server instance with local in memory access to data required by a portion of a query to process that portion of the query."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and mechanism for efficient re-distribution of in-memory columnar units in a clustered RDBMS on topology change","description":"Techniques are described herein for executing queries on distinct portions of a database object that has been separate into chunks and distributed across the volatile memories of a plurality of nodes ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10528580","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-10528580","citation_suggestion":"Patentable. \"Method and mechanism for efficient re-distribution of in-memory columnar units in a clustered RDBMS on topology change\" (US-10528580). https://patentable.app/patents/US-10528580","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10528580","json":"https://patentable.app/api/llm-context/US-10528580","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:24:05.333Z"}