ask the V8/Spidermonkey/JavaScriptCore devs how they have such fast regexp interfaces :)
other than that, nothing special. the stats-gathering pass works with large columnar arrays rather than thousands of objects. and it only does this when the pre-filtered resultset is small enough (default threshold is 1000). there's no string distance checks done, so there's no need to heap-allocate thousands of M*N matricies.
other than that, nothing special. the stats-gathering pass works with large columnar arrays rather than thousands of objects. and it only does this when the pre-filtered resultset is small enough (default threshold is 1000). there's no string distance checks done, so there's no need to heap-allocate thousands of M*N matricies.