US Patent Issued to SAP on Nov. 18 for "Dictionary sharing for efficient join operation in column store" (South Korean Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,475,124, issued on Nov. 18, was assigned to SAP SE (Walldorf, Germany).

"Dictionary sharing for efficient join operation in column store" was invented by Young Goo Cho (Seoul, South Korea) and Jaehyok Chong (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A computer implemented method can receive a first data table having a first column and a second data table having a second column, and obtain a dictionary shared by the first and second columns. The dictionary maps a plurality of unique data values to corresponding unique value identifiers. The method can generate a first data vector for the first column and a second data vector for t...