ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,991, issued on March 25, was assigned to Snowflake Inc. (Bozeman, Mont.).
"Nested row access policies" was invented by Raja Suresh Krishna Balakrishnan (Fremont, Calif.), Jashua Gupta (San Carlos, Calif.) and Jian Xu (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods of referencing row access policy (RAP) protected mapping tables in a RAP for a data table are disclosed herein. An example method of referencing a mapping table in a data table using nested RAP includes defining, by a processing device, a first access policy for the mapping table to control access by specific users or under specific conditions. The processing devi...