The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 2025
Filed:
Mar. 29, 2023
Snowflake Inc., Bozeman, MT (US);
Benoit Dageville, San Mateo, CA (US);
Lyuping Du, Issaquah, WA (US);
Martin Hentschel, Berlin, DE;
Elkhan Mammedov, Berlin, DE;
Lukas Moll, Berlin, DE;
Vikram Wakade, Sammamish, WA (US);
Snowflake Inc., Bozeman, MT (US);
Abstract
Techniques for active invalidation of cache entries are described. A first timestamp and a second timestamp are stored by a compute instance, the first timestamp corresponding to an initial time the computing instance read from a version update log in a database and the second timestamp corresponding to a last time the computing instance read from the version update log in the database. The compute instance can read records from the version update log that are associated with version timestamps greater than the second timestamp. The compute instance can invalidate a first set of cache entries with older versions stored in a cache based on reading the records, retaining a second set of cache entries, and then execute a query using the second set of cache entries.