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US Patent 11016975 Scan set pruning for pattern matching queries

Patent 11016975 was granted and assigned to Snowflake on May, 2021 by the United States Patent and Trademark Office.

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US Patent 11989184 Regular expression search query processing using pruning index
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US Patent 11893025 Scan set pruning for queries with predicates on semi-structured fields
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US Patent 11880369 Pruning data based on state of top K operator
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Patent abstract

A query directed at a source table organized into a set of batch units is received. The query includes a pattern matching predicate that specifies a search pattern. A set of N-grams are generated based on the search pattern. A pruning index is used to identify a subset of batch units to scan for matching data based on the set of N-grams generated for the search pattern. The pruning index indexes distinct N-grams in the source table. The query is processed by scanning the subset of batch units.

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US Patent 11803551 Pruning index generation and enhancement
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US Patent 11704320 Processing queries using an index generated based on data segments
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US Patent 11681708 Indexed regular expression search with N-grams
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=1101697500
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Patent Citations Received
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US Patent 11308089 Pruning index maintenance
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Infobox
Is a
Patent
Patent
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Patent Applicant
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Current Assignee
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
110169750
Date of Patent
May 25, 2021
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Patent Application Number
170862390
Date Filed
October 30, 2020
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=110169750
Patent Citations
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US Patent 10025823 Techniques for evaluating query predicates during in-memory table scans
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US Patent 10628418 Data driven multi-provider pruning for query execution plan
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US Patent 10685052 Method of and system for information retrieval
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US Patent 10705809 Pruning engine
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US Patent 10769150 Pruning indexes to enhance database query processing
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US Patent 10860832 Fast signature scan
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US Patent 10942925 Database query processing using a pruning index
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Patent Citations Received
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US Patent 11275738 Prefix N-gram indexing
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US Patent 11275739 Prefix indexing
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US Patent 11308089 Pruning index maintenance
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US Patent 11308090 Pruning index to support semi-structured data types
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US Patent 11321325 Pruning index generation for pattern matching queries
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US Patent 11372860 Processing techniques for queries where predicate values are unknown until runtime
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US Patent 11487763 Pruning using prefix indexing
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US Patent 11494384 Processing queries on semi-structured data columns
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US Patent 11544269 Index to support processing of pattern matching queries
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US Patent 11567939 Lazy reassembling of semi-structured data
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US Patent 11593379 Join query processing using pruning index
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Patent Primary Examiner
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Merilyn P Nguyen
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