ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,720, issued on Feb. 17, was assigned to Wisconsin Alumni Research Foundation (Madison, Wis.).

"Predicate transfer pre-filtering on multi-join queries" was invented by Xiangyao Yu (Madison, Wis.) and Paraschos Koutris (Madison, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes receiving a query of a database including a plurality of tables, constructing a join graph, and constructing a local predicate including a local filter. The method also includes transferring the local predicate across the join graph, applying the local filter and one or more transferred filters to the tables of the join graph, performing join operations on ...