ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,461,914, issued on Nov. 4, was assigned to SAP SE (Walldorf, Germany).

"Adaptive early filtering with intra-pipeline predicate back-propagation" was invented by Florian Drescher (Munich), Till Merker (Sandhausen, Germany), Paul Willems (Heidelberg, Germany) and Alexander Ostertag (Karlsruhe, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "In an example embodiment, an early filter is applied with a query plan using intra-pipeline predicate back-propagation. Specifically, the query plan may be thought of as a pipeline of operations. A runtime variable var may be introduced, and a specialized filter using var may be pushed down below the join operati...