ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,386,809, issued on Aug. 12, was assigned to SAP SE (Walldorf, Germany).
"Multi-fragment index scan" was invented by Andreas Amler (Heidelberg, Germany), Paul Willems (Heidelberg, Germany) and Till Merker (Sandhausen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for performing a multi-fragment index scan operation included in a query pipeline of a query accessing a database table may include performing an index scan on a first chunk of a first fragment of the database table and a second chunk of a second fragment of the database table. A first output of the index scan on the first chunk of the first fragment of the database table and a...