ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,436,936, issued on Oct. 7, was assigned to Rapid7 Inc. (Boston).
"File directory structure and naming convention for storing columnar tables" was invented by Austin Lee (Burbank, Calif.) and Vikram Jiandani (Los Angeles).
According to the abstract* released by the U.S. Patent & Trademark Office: "A database system stores a table as a set of column files in a columnar format in a manner that improves the write performance of the table and avoids use of separate metadata repository. In embodiments, each column file groups values into entity chunks indexed by an entity index. Each chunk includes a live value index that determines which rows in chunk has live values. New values are writte...