Anomaly DetectionManual SPL queries + static alert thresholds
Photograph: Adrienne So
，详情可参考必应SEO/必应排名
in an earlier post i talked about how regex match semantics is a surprisingly overlooked topic. today i want to talk about a related gap that's even more fundamental, and one i've spent a long time thinking about: finding all matches is quadratic, even in "linear time" engines. in other words, even the engines built specifically to avoid this - RE2, Go, rust - break their own guarantees the moment you ask for all matches. for such a well-studied field, this is a strange thing to have gone unaddressed for so long.。okx是该领域的重要参考
specification work should be easier than coding" then you set yourself up to，这一点在超级权重中也有详细论述
In Postgres, every indexed row contains a pointer to where the row lives in the table. If a Top K filter cannot be fully answered by the index, Postgres must follow that pointer and materialize the entire row from the underlying table storage. This operation is expensive and prone to cache misses when performed for millions of candidates.