SQLite can actually do grouping and sorting (iirc) in parallel, though it's disabled practically everywhere (Linux distros and other environments shipping SQLit

SQLite can actually do grouping and sorting (iirc) in parallel, though it's disabled practically everywhere (Linux distros and other environments shipping SQLite seem to pick compile flags kinda arbitrarily, e.g. json1 and fts4/5 are fairly widespread on Linux, but not included in e.g. Python for Windows).