Commits
Wes McKinney authored 8d782b1c1d1
ARROW-9115: [C++] Implementation of ascii_lower/ascii_upper by processing input data buffers in batch Following on discussion in #7357. I added a simple benchmark also. ``` -------------------------------------------------- Benchmark Time CPU Iterations -------------------------------------------------- AsciiLower 4774004 ns 4773998 ns 149 3.24122GB/s 209.468M items/s AsciiUpper 4708606 ns 4708590 ns 146 3.28625GB/s 212.378M items/s ``` Closes #7418 from wesm/ARROW-9115 Authored-by: Wes McKinney <wesm@apache.org> Signed-off-by: Wes McKinney <wesm+git@apache.org>